37th week of 2014 patent applcation highlights part 42 |
Patent application number | Title | Published |
20140254660 | VIDEO ENCODER, METHOD OF DETECTING SCENE CHANGE AND METHOD OF CONTROLLING VIDEO ENCODER - A video encoder is configured to encode video data in units of macroblocks based on a group of pictures (GOP), the GOP being determined by assigning intra pictures and inter pictures, each intra picture being encoded without reference to other pictures, and each inter picture being encoded with reference to other pictures. The method of controlling the video controller includes determining an encoding mode of each macroblock by performing an intra-picture prediction and an inter-picture prediction, detecting whether each unit of a picture is a scene change based on a result of the intra-picture prediction and the inter-picture prediction for determining the encoding mode of each macroblock, and adaptively setting a size of the GOP based on a result of detecting whether each unit of a picture is the scene change. | 2014-09-11 |
20140254661 | METHOD AND APPARATUS FOR APPLYING SECONDARY TRANSFORMS ON ENHANCEMENT-LAYER RESIDUALS - A method includes receiving a video bitstream and a flag and interpreting the flag to determine a transform that was used at an encoder. The method also includes, upon a determination that the transform that was used at the encoder includes a secondary transform, applying an inverse secondary transform to the received video bitstream, where the inverse secondary transform corresponds to the secondary transform used at the encoder. The method further includes applying an inverse discrete cosine transform (DCT) to the video bitstream after applying the inverse secondary transform. | 2014-09-11 |
20140254662 | VIDEO CODING METHOD USING AT LEAST EVALUATED VISUAL QUALITY AND RELATED VIDEO CODING APPARATUS - One video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for performing de-blocking filtering. Another video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target coding parameter associated with de-blocking filtering. | 2014-09-11 |
20140254663 | VIDEO CODING METHOD USING AT LEAST EVALUATED VISUAL QUALITY AND RELATED VIDEO CODING APPARATUS - One video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for performing sample adaptive offset (SAO) filtering. Another video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target coding parameter associated with sample adaptive offset (SAO) filtering. | 2014-09-11 |
20140254664 | METHODS TO PERFORM INTRA PREDICTION FOR COMPRESSION OF CFA DATA - Methods to perform intra prediction for compression of color filter array data utilize one or more prediction patterns and two lines of memory to support more than one color filter array and to improve performance. | 2014-09-11 |
20140254665 | METHOD FOR ENCODING AND DECODING IMAGES, ENCODING AND DECODING DEVICE, AND CORRESPONDING COMPUTER PROGRAMS - A method for coding includes; segmenting an image into blocks; grouping blocks into a number of subsets; coding, using an entropy coding module, each subset, by associating digital information with symbols of each block of a subset, including, for the first block of the image, initializing state variables of the coding module; and generating a data sub-stream representative of at least one of the coded subsets of blocks. Where a current block is the first block to be coded of a subset, symbol occurrence probabilities for the first current block are determined based on those for a coded and decoded predetermined block of at least one other subset. Where the current block is the last coded block of the subset: writing, in the sub-stream representative of the subset, the entire the digital information associated with the symbols during coding of the blocks of the subset, and implementing the initializing sub-step. | 2014-09-11 |
20140254666 | PARALLEL PROCESSING FOR VIDEO CODING - In one example, a device for coding video data includes a video coder configured to code data representative of whether a tile of an enhancement layer picture can be predicted using inter-layer prediction, and predict data of the tile using inter-layer prediction only when the data indicates that the tile can be predicted using inter-layer prediction. | 2014-09-11 |
20140254667 | PARALLEL PROCESSING FOR VIDEO CODING - In one example, a device for coding video data includes a video coder configured to code data indicating whether tile boundaries of different layers of video data are aligned and whether inter-layer prediction is allowed along or across tile boundaries of enhancement layer blocks, code an enhancement layer block in an enhancement layer tile of the video data without using inter-layer prediction from a collocated base layer block for which inter-layer filtering or reference layer filtering across tile boundaries in a reference layer picture in an access unit including both the enhancement layer tile and the base layer block is enabled, and code the collocated base layer block. | 2014-09-11 |
20140254668 | PARALLEL PROCESSING FOR VIDEO CODING - In one example, a device for coding video data includes a video coder configured to code a value for a syntax element representative of whether any two reference layer samples, collocated with two respective enhancement layer picture samples within a common enhancement layer tile, must be within a common reference layer tile, and code the enhancement layer picture samples based at least in part on the value of the syntax element. | 2014-09-11 |
20140254669 | PARALLEL PROCESSING FOR VIDEO CODING - In one example, a device for coding video data includes a video coder configured to code, for a tile of an enhancement layer picture, data indicating a number of tiles in a base layer picture that need to be coded before the tile of the enhancement layer picture can be coded, code tiles of the base layer picture corresponding to the number of tiles, and, after coding the tiles of the base layer picture, code the tile of the enhancement layer picture substantially in parallel with at least one other tile in the base layer picture. | 2014-09-11 |
20140254670 | METHOD AND APPARATUS FOR ROI CODING USING VARIABLE BLOCK SIZE CODING INFORMATION - A video/image compression method based on an region of interest (ROI) can be performed in a variable block video encoder such as a HEW. A ROI coding method using variable block size coding information partitions a maximum coding unit (LCU) block obtained from an image into coding unit (CU) blocks. To obtain a quantization parameter of each coding unit (CU) block, the value of its quantization parameter is assigned based on its first hierarchical depth information and its second hierarchical depth information by using the first hierarchical depth information related to the size of the coding unit (CU) block and using the second hierarchical depth information related to the size of a prediction unit (PU) block correspondingly represented in consequence of the partition of the coding unit (CU) block. The resulting values of a quantization parameter assigned to different coding unit (CU) blocks may be different. | 2014-09-11 |
20140254671 | VIDEO DECODER PARALLELIZATION FOR TILES - A method for decoding video includes receiving a frame of the video that includes at least one slice and at least one tile. Each of the at least one slice and the at least one tile are not all aligned with one another. Each of the at least one slice is characterized that it is decoded independently of the other the at least one slice. Each of the at least one tile is characterized that it is a rectangular region of the frame and having coding units for the decoding arranged in a raster scan order. The at least one tile of the frame are collectively arranged in a raster scan order of the frame. | 2014-09-11 |
20140254672 | TRACKING A REFERENCE PICTURE ON AN ELECTRONIC DEVICE - A method for tracking a reference picture on an electronic device is described. The method includes receiving a bitstream. The method also includes decoding a portion of the bitstream to produce a decoded reference picture. The method further includes tracking the decoded reference picture in a decoded picture buffer (DPB) with reduced overhead referencing. The method additionally includes decoding a picture based on the decoded reference picture. | 2014-09-11 |
20140254673 | METHOD AND APPARATUS FOR ENCODING VIDEO, AND METHOD AND APPARATUS FOR DECODING VIDEO - An apparatus of decoding image includes an entropy decoder which extracts information that indicates an intra prediction mode applied to a current block to be decoded, from a bitstream, a reference pixel determining unit which determines one of neighboring pixels adjacent to the current block and filtered neighboring pixels filtered from the neighboring pixels as reference pixels, based on at least one of a size of the current block and an intra prediction mode of the current block, and an intra prediction performing unit which performs intra prediction on the current block using the extracted information and the determined reference pixels. | 2014-09-11 |
20140254674 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE - A method for decoding an image, according to the present invention, comprises the steps of: deciding a prediction mode that corresponds to a chroma component block; deciding a transform skip mode of the chroma component block from a plurality of transform skip mode candidates, according to the prediction mode that corresponds to the chroma component block; and reverse-transforming the chroma component block on the basis of the transform skip mode that is decided. | 2014-09-11 |
20140254675 | ADAPTIVE TRANSFORM METHOD BASED ON IN-SCREEN PREDICTION AND APPARATUS USING THE METHOD - Disclosed is an adaptive transform method based on an in-screen prediction, and an apparatus using the method. A method for encoding an image can comprise a step of determining in-screen prediction mode groups, and a step of transforming by using a different transform method according to the in-screen prediction mode group. As a result, transforming can be performed by applying the different transform method according to the in-screen prediction mode group. | 2014-09-11 |
20140254676 | VIDEO ENCODING AND DECODING BASED ON IMAGE REFINEMENT - A particular implementation forms an initial reconstructed image block from inverse quantization and inverse transform, and further refines the reconstructed image block using pixels from neighboring reconstructed blocks. The image block may be refined using a bilateral filter, whose space parameter and range parameter are adaptive to the quantization parameter. The particular implementation can be used in both encoding and decoding when reconstructing an image block. When used in encoding, the particular implementation can be used jointly with coefficient truncation, where some non-zero transform coefficients are set to zero. The number of remaining non-zero transform coefficients after coefficient truncation may be adaptive to the quantization parameter, the variance of the image block, the number of non-zero transform coefficients of the image block, and the index of the last non-zero transform coefficient in a zigzag scanning order. | 2014-09-11 |
20140254677 | METHOD FOR DECODING CHROMA IMAGE - Provided is a method that derives a chroma intra prediction mode of a prediction unit, determines a size of a current chroma block using luma transform size information, generates a chroma prediction block of the current chroma block using the chroma intra prediction mode, generates a chroma residual block of the current chroma block using the chroma intra prediction mode and a chroma quantization parameter, generates a chroma reconstructed block adding the chroma prediction block and the chroma residual block, and the chroma quantization parameter is generated using a luma quantization parameter and information indicating the relationship between the luma quantization parameter and the chroma quantization parameter. Therefore, the coding efficiency is improved by adjusting the chroma quantization parameter per picture. Also, the amount of bits for transmitting the luma and chroma quantization parameters is reduced by encoding the luma quantization parameter using neighboring luma quantization parameters. | 2014-09-11 |
20140254678 | MOTION ESTIMATION USING HIERARCHICAL PHASE PLANE CORRELATION AND BLOCK MATCHING - Systems, apparatus, articles, and methods are described related to motion estimation using hierarchical phase plane correlation and block matching. | 2014-09-11 |
20140254679 | INTER-LAYER REFERENCE PICTURE CONSTRUCTION FOR SPATIAL SCALABILITY WITH DIFFERENT ASPECT RATIOS - A method of coding video data includes upsampling at least a portion of a reference layer picture to an upsampled picture having an upsampled picture size. The upsampled picture size has a horizontal upsampled picture size and a vertical upsampled picture size. At least one of the horizontal or vertical upsampled picture sizes may be different than a horizontal picture size or vertical picture size, respectively, of an enhancement layer picture. In addition, position information associated with the upsampled picture may be signaled. An inter-layer reference picture may be generated based on the upsampled picture and the position information. | 2014-09-11 |
20140254680 | VIDEO CODING METHOD USING AT LEAST EVALUATED VISUAL QUALITY AND RELATED VIDEO CODING APPARATUS - One video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for performing motion estimation. Another video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target coding parameter associated with motion estimation. | 2014-09-11 |
20140254681 | APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING - There are disclosed various methods, apparatuses and computer program products for video coding. In some embodiments motion parameters are obtained for a block of first layer samples and a first layer reference picture for the block of first layer samples is identified. A second layer reference picture corresponding to the first layer reference picture is identified, intermediate reference picture samples are derived by using sample values of the first layer reference picture and information based on sample values of the second layer reference picture, and inter-layer reference picture samples are derived by using intermediate reference picture samples and first layer samples. In some embodiments motion compensated sample values are derived from the second layer reference picture on the basis of the motion parameters; and an inter-layer reference block is derived by using residual sample values of first layer samples and motion compensated sample values from the second layer reference picture. | 2014-09-11 |
20140254682 | DERIVED DISPARITY VECTOR IN 3D VIDEO CODING - A video coder stores only one derived disparity vector (DDV) for a slice of a current picture of the video data. The video coder uses the DDV for the slice in a Neighboring Block Based Disparity Vector (NBDV) derivation process to determine a disparity vector for a particular block. Furthermore, the video coder stores, as the DDV for the slice, the disparity vector for the particular block. | 2014-09-11 |
20140254683 | Computing Predicted Values for Motion Vectors - A method of motion vector prediction for use in differential motion vector coding within a block motion-compensation-based video coder. The video coder employs a generalized multiple reference picture buffer which may contain multiple reference pictures in both the forward and backward temporal direction from the current picture. For the purpose of coding selections of reference pictures within the buffer, the pictures are organized into two, potentially overlapping, lists of reference pictures. The prediction of a motion vector that selects a reference picture using a given reference picture list is not dependent upon any motion vectors that select their reference pictures using the other reference picture list. The values of spatially neighbouring motion vectors that use the same list of reference pictures as the motion vector being predicted are used for prediction, regardless of the relative temporal direction of the current and neighbouring motion vectors. | 2014-09-11 |
20140254684 | METHOD AND APPARATUS FOR EFFECTIVE ENCODING/DECODING USING DETAILED PREDICTIVE UNIT - An apparatus for encoding images includes: a predictor to determine a prediction unit (PU) mode among a plurality of PU modes indicating types of partition of a current coding unit (CU) into one or more prediction units (PUs), and generate a predicted block of the current CU by performing an intra prediction or an inter prediction for each PU of the determined PU mode, wherein a size of the current CU is 2N×2N, and the plurality of PU modes includes 2N×hN or hN×2N PU mode in which the current CU is partitioned into PUs respectively having a size of 2N×hN or hN×2N, h being a fractional number smaller than 1; a subtractor to subtract the predicted block from the current CU to generate a residual block; a transformer to transform the residual block into a frequency domain to generate a frequency one or more transform blocks. | 2014-09-11 |
20140254685 | METHOD OF PREDICTING MOTION VECTORS IN VIDEO CODEC IN WHICH MULTIPLE REFERENCES ARE ALLOWED, AND MOTION VECTOR ENCODING/DECODING APPARATUS USING THE SAME - Initial value is selected when motion estimation is performed using predicted motion vector in video codec in which multiple references are allowed, and coding amount of motion vectors is reduced using predicted motion vector. Motion vector encoding apparatus includes predicted motion vector generator that generates adjacent motion vectors of current block with respect to each of reference pictures and generates each predicted motion vector of the current block from the generated adjacent motion vectors, motion estimator that determines final motion vector of the current block and final reference picture corresponding to the final motion vector with regard to search regions of the reference pictures, differential unit that obtains difference between the final motion vector of the current block and final predicted motion vector corresponding to the determined final reference picture among the predicted motion vectors, and unit for encoding information about the final reference picture and the difference. | 2014-09-11 |
20140254686 | METHOD AND APPARATUS FOR PREDICTIVE ENCODING/DECODING OF MOTION VECTOR - A video encoding apparatus for predicting a motion vector of a current block to be encoded is to determine one or more representative blocks from neighboring blocks of the current block according to priorities of the neighboring blocks; and encode the motion vector of the current block by using, as a predicted motion vector of the current block, a first motion vector selected from motion vectors of the determined one or more representative blocks and a second motion vector of at least one block within a reference picture. | 2014-09-11 |
20140254687 | ENCODING DEVICE AND ENCODING METHOD, AND DECODING DEVICE AND DECODING METHOD - The present technique relates to an encoding device and an encoding method, and a decoding device and a decoding method that can improve encoding efficiency when a motion compensation operation with fractional precision is performed upon inter prediction. When the precision of a motion vector is ¼-pixel precision and the precision of a predicted vector is ⅛-pixel precision according to detected-precision information contained in compressed image information, a predicted-vector transform unit performs a rounding operation on the predicted vector to generate a predicted vector with ¼-pixel precision. A motion vector generation unit adds the predicted vector with ¼-pixel precision to a difference vector contained in the compressed image information, to generate a motion vector. An inter prediction unit and an arithmetic operation unit decode an image by performing a motion compensation operation using the motion vector. The present technique can be applied to a decoding device, for example. | 2014-09-11 |
20140254688 | Perceptual Quality Of Content In Video Collaboration - Techniques are provided for receiving and decoding a sequence of video frames at a computing device, and analyzing a current video frame N to determine whether to skip or render the current video frame N for display by the computing device. The analyzing includes generating color histograms of the current video frame N and one or more previous video frames, determining a difference value representing a difference between the current video frame N and a previous video frame N−K, where K>0, the difference value being based upon the generated color histograms, in response to the difference value not exceeding a threshold value, rendering the current video frame N or a recently rendered video frame N−K using the current video frame, and in response to the difference value exceeding the threshold value, skipping the current video frame N from being rendered. | 2014-09-11 |
20140254689 | VIDEO CODING METHOD USING AT LEAST EVALUATED VISUAL QUALITY AND RELATED VIDEO CODING APPARATUS - A video coding method includes at least the following steps: utilizing a visual quality evaluation module for evaluating visual quality based on data involved in a coding loop; and referring to at least the evaluated visual quality for deciding a target bit allocation of a rate-controlled unit in video coding. Besides, a video coding apparatus has a visual quality evaluation module, a rate controller and a coding circuit. The visual quality evaluation module evaluates visual quality based on data involved in a coding loop. The rate controller refers to at least the evaluated visual quality for deciding a target bit allocation of a rate-controlled unit. The coding circuit has the coding loop included therein, and encodes the rate-controlled unit according to the target bit allocation. | 2014-09-11 |
20140254690 | MULTI-VIEW VIDEO CODING AND DECODING METHODS AND APPARATUSES, CODER, AND DECODER - Embodiments of the present invention provide multi-view video coding and coding methods and corresponding apparatuses. The multi-view video coding method includes: minimizing an error between a currently coded view image and a warped view image of a front view image to obtain an optimal warping offset; calculating disparity information between the front view image and the currently coded view image by using the optimal warping offset, a camera parameter of a view, and depth image information of the front view image; and calculating the warped view image of the front view image by using the disparity information and the front view image, and predicting a current view image by using the warped view image as a prediction signal. | 2014-09-11 |
20140254691 | BITSTREAM PROCESSING USING MARKER CODES WITH OFFSET VALUES - A sequence of data within a bitstream may be determined. An offset value corresponding to a location of a validity code within the bitstream may be determined, relative to the sequence of data. A marker code and the offset value may be inserted into the bitstream in association with the sequence of data. Also, a received bitstream may be scanned to determine a potential marker code, a potential offset value may be determined, based on the potential marker code. A validity code within the bitstream may be determined, based on the potential offset value, and a validity of the potential marker code may be determined, based on the validity code. | 2014-09-11 |
20140254692 | DIGITAL E8-VSB RECEPTION SYSTEM AND E8-VSB DATA DEMULTIPLEXING METHOD - A method of processing a digital television (DTV) signal is disclosed. Herein, the DTV signal is generated by performing Reed-Solomon (RS) encoding on additional data, multiplexing the RS-encoded additional data with main data, RS encoding the multiplexed additional and main data, interleaving the RS-encoded additional and main data, trellis encoding the interleaved additional and main data, and transmitting a Radio Frequency (RF) DTV signal including the trellis-encoded additional and main data. The method to process the DTV signal includes receiving the DTV signal including the additional data multiplexed with the main data through an antenna, in which signaling information is periodically inserted in the additional data. The received DTV signal is demodulated including performing channel equalization on the demodulated DTV signal. Trellis decoding is performed on the channel-equalized DTV signal. Further, the additional data from the trellis-decoded DTV signal is extracted including removing dummy data from the extracted additional data. | 2014-09-11 |
20140254693 | AIRCRAFT DATA TRANSMISSION MODULES - Provided are methods and systems for terrestrial data transmission between aircrafts and external networks, such as airline and/or airport computer systems. When an aircraft is parked at the gate, the aircraft is connected to and powered by an electrical cable, such as a stinger cable. This cable may be also be used for wired data transmission between the aircraft and the gate using broadband over power line (BPL) technology. The gate and the aircraft are each equipped with a BPL module. The aircraft may include other communication modules, such as a Wi-Fi module, a cellular module, and/or an Ethernet module. These other modules can be also used for data transmission in addition to or instead of communication through the BPL module. A communication link manager may be used to select one or more communication modules depending on availability of communication links, costs, speed, and other parameters. | 2014-09-11 |
20140254694 | COMMUNICATION SYSTEM AND COMMUNICATION DEVICE - This output circuit sends a control pilot signal which has been generated at a voltage generation source to an input circuit. Between the control pilot line and the ground line of the output side of the output circuit, a communication unit is connected via a transformer. Between the control pilot line and the ground line of the input side of the input circuit, a communication unit is connected via a transformer. Between the output circuit and the transformer, a lowpass filter is interposed. Between the input circuit and the transformer, a lowpass filter is interposed. | 2014-09-11 |
20140254695 | COMMUNICATION SYSTEM - A charging station performs communications by use of a superimposing/separating unit configured by connecting a capacitor, a coupling transformer and a capacitor to branch lines branching out respectively from a control cable and a grounded cable. An electric vehicle performs communications by use of a superimposing/separating unit configured by providing a coupling transformer to the control cable. A capacitor is also connected between the control cable and the grounded cable. Communications are allowed by the configuration of a closed loop circuit comprising the control cable, the branch line, the capacitor, a primary coil of the coupling transformer, the capacitor, the branch line, the grounded cable, the capacitor, and a primary coil of the coupling transformer. | 2014-09-11 |
20140254696 | SYSTEM AND METHOD OF PROVIDING COMMUNICATIONS IN A WIRELESS POWER TRANSFER SYSTEM - A communication system that uses keyed modulation to encode fixed frequency communications on a variable frequency power transmission signal in which a single communication bit is represented by a plurality of modulations. To provide a fixed communication rate, the number of modulations associated with each bit is dynamic varying as a function of the ratio of the communication frequency to the carrier signal frequency. In one embodiment, the present invention provides dynamic phase-shift-keyed modulation in which communications are generated by toggling a load at a rate that is a fraction of the power transfer frequency. In another embodiment, the present invention provides communication by toggling a load in the communication transmitter at a rate that is phase locked and at a harmonic of the power transfer frequency. In yet another embodiment, the present invention provides frequency-shift-keyed modulation, including, for example, modulation at one of two different frequencies. | 2014-09-11 |
20140254697 | Upstream Pilot Structure In Point To Multipoint Orthogonal Frequency Division Multiplexing Communication System - A central access network unit comprising a processor configured to assign a plurality of upstream training blocks from an upstream OFDM symbol to a plurality of downstream network units, wherein the OFDM symbol comprises a plurality of pilot subcarriers equally spaced across an upstream RF spectrum in a pre-determined time interval, and wherein each upstream training block comprises a different subset of the pilot subcarriers that are non-consecutive and situated across the upstream RF spectrum, and generate one or more messages comprising assignments of the upstream training blocks, and a transmitter coupled to the processor and configured to transmit the messages to the plurality of downstream network units via a network, wherein the messages instruct at least one of the plurality of downstream network units to transmit a modulated pre-determined sequence at the pilot subcarriers corresponding to the upstream training block assigned to the downstream network unit. | 2014-09-11 |
20140254698 | SOFTWARE DEFINED RADIO - A software defined radio is disclosed. The software defined radio may utilize a method for encoding a bit stream into non-periodic spiral-based symbol waveforms for transmission and reception. The method includes transmitting a signal constructed from one or more non-periodic modulation sets residing on a memory system of the software defined radio, where each modulation set corresponds to a symbol alphabet and provides non-periodic symbol waveforms corresponding to symbol bit sequences segmented by a microprocessor according to alphabet size. The method also includes receiving the signal constructed from one or more spiral modulation sets, wherein the signal from one or more spiral modulation sets are filtered and then fed to an analog to digital converter, where the signal constructed from the one or more spiral modulation sets is digitized and are fed to the microprocessor. A non-transitory computer storage media may also execute the method. | 2014-09-11 |
20140254699 | MIMO COMMUNICATION METHOD, MIMO TRANSMITTING DEVICE, AND MIMO RECEIVING DEVICE - A first digital signal sequence including I and Q digital signal sequences is obtained, the first digital signal sequence being obtained by multiplying each bit of an I-sequence and a Q-sequence in a digital signal sequence system by a first code among codes constituting n-th order (n is an integer) orthogonal codes. A second digital signal sequence is obtained by multiplying I and Q digital signal sequences by a first coefficient greater than 1, the I and Q digital signal sequences being obtained by multiplying each of the bits in the I-sequence and the Q-sequence in the digital signal sequence system by a first code among codes constituting 2n-th order orthogonal codes. The first digital signal sequence and the second digital signal sequence are added on a bit-by-bit basis to create one digital signal sequence, and the one digital signal sequence is transmitted from a single antenna. | 2014-09-11 |
20140254700 | System and Method for Dual-Band Backhaul Radio - A method and system are provided. The system includes a communication system including a first transmitter/receiver operating on a first frequency and a second transmitter/receiver operating on a second frequency. The system also includes a controller monitoring at least one of interference and throughput on the first and second transmitter/receiver and shifting demand based on the monitoring. | 2014-09-11 |
20140254701 | SYSTEMS AND METHODS FOR ENHANCED MIMO OPERATION - A method for channel state information (CSI) reporting by a wireless communication device is described. The method includes determining a codebook for a CSI report corresponding to four transmit antenna (4Tx) transmissions from a base station. The codebook has a dual codebook structure. The method also includes generating the CSI report using the codebook. The method further includes transmitting the CSI report to a base station. | 2014-09-11 |
20140254702 | METHOD AND APPARAPTUS FOR TRANSMITTING AND RECEIVING CHANNEL RELATED INFORMATION - The present disclosure relates to a method and an apparatus for transmitting and receiving channel related information. A method of transmitting channel related information of a UE according to an embodiment of the present disclosure includes configuring a sub-channel corresponding to a part of a plurality of antennas of an eNB; acquiring a Channel Estimation Error (CEE) and a Precoding Matrix Indicator (PMI) corresponding to the sub-channel; and transmitting a Sub-channel Indicator (SI) indicating the sub-channel, according to the CEE and the PMI. In accordance with an embodiment of the present disclosure, the channel related information is efficiently transmitted and received in a system in which a plurality of antennas is used. | 2014-09-11 |
20140254703 | COMMUNICATION METHOD AND APPARATUS FOR USE IN MULTIPLE ANTENNA SYSTEM - A method and apparatus for transmitting and receiving signals is provided for use in a codebook-based closed-loop multiple antenna system. A method for receiving signals in a codebook-based multiple antenna system according to the present disclosure includes estimating a desired signal and an interference channel, determining a codebook index using the desired channel, a Hermitian of the desired channel, and the interference channel, and feeding back the codebook index to a transmitter. The multi-antenna system of the present disclosure is advantageous in suppressing the interference from other cells and maximizing the gain of the desired signal especially when the number of receive antennas is greater than the reception streams and in designing a codebook with high performance as compared to the Grassmanian codebook and low complexity. | 2014-09-11 |
20140254704 | DYNAMIC DIGITAL COMMUNICATION SYSTEM CONTROL - Control of a digital communication system having a plurality of communication lines on which signals are transmitted and received is implemented using a variety of methods and systems. According to one embodiment of the present invention, a method is implemented where the signals are affected by interference during transmission and each of the communication lines has at least one transmitter and at least one receiver. A model is created of the interference characteristics due to the signals carried on the communication lines. Interference characteristics for a line are determined based on the model and actual signals carried on other communication lines different from the line for which the characteristics are being determined. Actual interference is compensated for on the communication line using the determined interference characteristics. | 2014-09-11 |
20140254705 | METHOD AND APPARATUS FOR TRANSMITTING FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM - Disclosed are a method and apparatus for transmitting feedback in a wireless communication system. A terminal transmits first CSI (channel state information) on a first node combination to a base station, or a terminal transmits second CSI on a second node combination to the base station. The total number of antenna ports in the first node combinations is one of two, four, or eight, and the total number of antenna ports in the second node combination is not two, four, and eight. | 2014-09-11 |
20140254706 | Interference Reduction for Multiple Signals - The present invention reduces the degradation in performance of one or more radio signals that are co-transmitted with a first radio signal from the same transmitting antenna in the same frequency channel and received by the same antenna due to multipath or other shared interference, where the one or more radio signals can be separated from the first radio signal. All received signals are coupled to the same adaptive array or adaptive filter to reduce multipath or other shared interference of the first radio signal, which reduces multipath and other shared interference in the other radio signals before they are separated and processed by their respective receivers, or the individual radio signals are separated before the first signal enters the adaptive array and coupled to a slave weighting network slaved to the weights of the adaptive array of the first signal to reduce interference in all the signals. | 2014-09-11 |
20140254707 | METHOD, APPARATUS, AND SYSTEM FOR INTERFERENCE ALIGNMENT - Embodiments of the present invention provide a method, an apparatus, and a system for interference alignment. The method includes: receiving signals transmitted by transmit ends, where the signals include interference signals and a wanted signal; aligning original constellation diagrams of the interference signals to acquire a first interference aligned constellation diagram; performing, according to the first interference aligned constellation diagram, interference signal demodulation and decoding on the received signals to acquire an interference source bit sequence; performing, according to the interference source bit sequence and the first interference aligned constellation diagram, interference reconstruction and removal to acquire a second interference aligned constellation diagram; and performing, according to the second interference aligned constellation diagram, wanted signal demodulation and decoding on the signal sequence to acquire the wanted signal transmitted by a wanted signal transmit end. The embodiments of the present invention are applicable to radio communications. | 2014-09-11 |
20140254708 | METHOD FOR REPORTING CHANNEL STATE INFORMATION ON A COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION AGGREGATION, AND APPARATUS THEREFOR - According to one embodiment of the present invention, a method is disclosed in which user equipment (UE) that communicates with a coordinated multi-point transmission and reception (CoMP) aggregation transmits channel state information (CSI) on said CoMP aggregation in a wireless communication system. The method may enable the determination of the number of bits for inter-point phase information for points that belong to said CoMP aggregation, and the number of bits for a channel quality indicator (CQI) for said CoMP aggregation based on rank indicator (RI) information within the number of bits allocated for transmission of the channel state information, and may enable the transmission of the channel state information including the inter-point phase information and CQI on the CoMP aggregation to at least one of a plurality of points that belong to the CoMP aggregation in accordance with said determined number of bits. | 2014-09-11 |
20140254709 | IMPAIRED CARRIER CODING - A method of transmitting a plurality of bits via at least two carriers each having a data rate for achieving transmission despite an impaired carrier, the method includes: receiving the plurality of bits for transmission via the at least two carriers; populating the plurality of bits in a N-dimensional bit structure using an aggregation pattern; producing a coded transmit block having N dimensions, a plurality of encoded rows and a plurality of encoded bits by encoding the N-dimensional bit structure; assigning each of the plurality of encoded bits to each of the at least two carriers; and transmitting the plurality of encoded bits via the at least two carriers. | 2014-09-11 |
20140254710 | Frequency Pulling Reduction in Wide-Band Direct Conversion Transmitters - In an up-converter path of a transmitter, wide-band signal system like direct. conversion WiGig, a high pass filter (HPF) is placed in the baseband path after the low pass filter (LPF) but before the mixers. The baseband signal of WiGig can have a bandwidth of 800 MHz. The HPF removes the frequencies from 0-40 MHz from the baseband signal and degrades the overall signal of the baseband by a dB or so. However, the frequency pulling is significantly reduced since oscillator frequency and Radio frequency (RF) transmitter frequencies after conversion become further separated when compared a system using to the conventional approach. This causes the injected signal to fall outside the locking range of the oscillator. The concern of substrate coupling is reduced and allows for a reduction in the physical distance between the oscillator and the mixer and reduces a shift in the desired target frequency of operation. | 2014-09-11 |
20140254711 | EFFICIENT N-FACTORIAL DIFFERENTIAL SIGNALING TERMINATION NETWORK - A termination network circuit for a differential signal transmitter comprises a plurality of n resistance elements and a plurality of differential signal drivers. A first end of each of the resistance elements is coupled at a common node, where n is an integer value and is the number of conductors used to transmit a plurality of differential signals. Each differential signal driver may include a positive terminal driver and a negative terminal driver. The positive terminal driver is coupled to a second end of a first resistance element while the negative terminal driver is coupled to a second end of a second resistance element. The positive terminal driver and the negative terminal driver are separately and independently switchable to provide a current having a magnitude and direction. During a transmission cycle each of the resistance elements has a current of a different magnitude and/or direction than the other resistance elements. | 2014-09-11 |
20140254712 | VOLTAGE MODE DRIVER CIRCUIT FOR N-PHASE SYSTEMS - System, methods and apparatus are described that facilitate transmission of data, particularly between two devices within electronic equipment. Transmission lines are selectively terminated in an N-phase polarity encoded transmitter when the transmission lines would otherwise be undriven. Data is mapped to a sequence of symbols to be transmitted on a plurality of wires. The sequence of symbols is encoded in three signals. Each of the three terminals may be driven such that transistors are activated to couple a terminal to first and second voltage levels through a pair of impedances when the terminal would otherwise be undriven. The terminal is then pulled toward an intermediate voltage level while the terminal presents a desired impedance level to a transmission line. | 2014-09-11 |
20140254713 | COMMUNICATION SYSTEM AND METHOD USING SPACE DIVISION MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT (SD-MIMO) COMMUNICATION METHOD - Provided is a communication system using a space division multi-user multiple input multiple output (SD-MIMO) communication method. A transmission apparatus may transmit, to each of terminals included within a coverage, common control information commonly transmitted to the terminals and individual control information individually transmitted to each of the terminals. The transmission apparatus does not precode the common control information and transmits the non-precoded common control information. The transmission apparatus precodes the individual control information and transmits the precoded individual control information. | 2014-09-11 |
20140254714 | METHOD, APPARATUS AND COMMUNICATION UNIT - A method, an apparatus and a communication unit for generating precoding feedback information in a multiple frequency radio transmission system are disclosed. A rank for precoding matrices, wherein the rank is constant over the multiple frequencies, is selected and a plurality of precoding matrices having the selected rank are selected. A different precoding matrix is selected for each frequency subset of the multiple frequencies. | 2014-09-11 |
20140254715 | ROBUST PRECODING VECTOR SWITCHING FOR MULTIPLE TRANSMITTER ANTENNAS - Methods, apparatuses, and computer program products for robust precoding vector switching for multiple transmitter antennas are provided. One method includes defining, by a base station, a precoding vector switching (PVS) scheme for transmission of synchronization signals through multiple antennas comprising a plurality of pairs of cross-polarized antenna elements. The PVS scheme includes changing a direction pattern from co-polarized antenna elements for the first and for the second occurrence of the synchronization signals, and rotating a polarization from each of the pairs of cross-polarized antenna elements for the first and for the second occurrence of the synchronization signals. | 2014-09-11 |
20140254716 | Power Amplifier System Including A Composite Digital Predistorter - A power amplifier system including a composite digital predistorter (DPD) ensuring optimized linearity for the power amplifier is described. In this system, a digital-to-analog converter (DAC), an analog filter, a first mixer, and the power amplifier are serially coupled to the composite DPD. A second mixer, a receive gain block, and an analog-to-digital converter (ADC) are serially coupled to the output of the power amplifier. A DPD training component is coupled between the inputs of the composite DPD and the ADC. The composite DPD includes a memory-based DPD, e.g., a memory polynomial (MP) DPD, a memoryless-linearizing DPD, e.g., a look-up table (LUT) DPD, and two multiplexers. | 2014-09-11 |
20140254717 | DIGITALLY COMPENSATED PROCESS TRANSMITTER WITH MINIMAL DEAD TIME - A processor transmitter includes a sensor, a first signal path, a second signal path, and an output summing circuit. The sensor produces a process signal that is a function of a process parameter. The first signal path digitally compensates the process signal. The second signal path digitally filters the process signal and subjects the process signal to less delay than the first signal path. The output summing circuit sums the digitally compensated process signal from the first signal path and the digitally filtered process signal from the second signal path to produce a fast digital compensated process signal. | 2014-09-11 |
20140254718 | PEAK FACTOR REDUCTION DEVICE AND WIRELESS TRANSMITTER - To satisfy the required SNR values for each system and/or each channel, it is provided a peak factor reduction device for reducing peak components included in a transmission signal, wherein the peak factor reduction device generates a cancellation signal to be multiplexed on the transmission signal, and the peak factor reduction device changes an amplitude of the generated cancellation signal according to a signal noise ratio required for the transmission signal and a power level of the transmission signal. | 2014-09-11 |
20140254719 | SYMBOL VECTOR-LEVEL COMBINING TRANSMITTER FOR INCREMENTAL REDUNDANCY HARQ WITH MIMO - Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. A set of information bits corresponding to a message may be encoded and interleaved to produce the mother code. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols. | 2014-09-11 |
20140254720 | PA CELL, PA MODULE, WIRELESS COMMUNICATION UNIT, RF TRANSMITTER ARCHITECTURE AND METHOD THEREFOR - A power amplifier cell includes a first input arranged to receive an in-phase control signal, a second input arranged to receive a quadrature control signal, an input stage arranged to output a drive signal based at least partly on the received in-phase and quadrature control signals, and an output stage arranged to receive at an input thereof the drive signal output by the input stage, and to generate an output signal for the power amplifier cell in response to the received drive signal. | 2014-09-11 |
20140254721 | TRANSMISSION APPARATUS, RECEPTION APPARATUS AND DIGITAL RADIO COMMUNICATION METHOD - A transmission method includes modulating a transmission signal using a modulation scheme selected from a plurality of modulation schemes, to generate a first symbol sequence and generating at least one second symbol including a pilot symbol generated using a PSK modulation scheme. The method includes changing an insertion interval of the second symbol to be inserted in the first symbol sequence, to generate a modulation signal and transmitting the modulation signal. The second symbol is configured for synchronization in a reception apparatus. | 2014-09-11 |
20140254722 | Digital Receiver - A receiver and method is provided for sigma-delta converting an RF signal to a digital signal and downconverting to a digital baseband signal. The RF signal is split into N phases, as can be accomplished using a sample and hold circuit, and each phase is digitized, as can be accomplished using an analog-to-digital (A/D) sigma-delta converter. Polyphase decimation techniques and demodulation are applied to the phased signals to generate a demodulated digital signal. The demodulated digital signal is further downconverted to the appropriate baseband signal. | 2014-09-11 |
20140254723 | POLAR MULTI-SYMBOL DELAY DETECTOR FOR CARRIER PHASE AND FREQUENCY RECOVERY FOR COHERENT TRANSMISSION - A method for calculating a reconstructed phase that includes: Calculating a current phase signal and current amplitude signal that represent a phase and amplitude of a current input symbol, respectively. Generating, in response to the current phase signal and an estimate of a phase of a last input symbol that preceded the current input symbol, multiple partial references, some of which are responsive to (i) phase signals representative of phases of a plurality of input symbols that preceded the current input symbol, and (ii) estimates of the phase of the plurality of input symbols. Calculating unwrapped partial references. Estimating a constant carrier frequency offset (CFO) phase rotation in response to the unwrapped partial references. Calculating a reconstructed phase of the current input symbol in response to, at least, the estimate of the constant CFO phase rotation and to the unwrapped partial references. | 2014-09-11 |
20140254724 | DEMODULATING A DATA PACKET BASED ON A DETECTED SYNC WORD - In a particular embodiment, a method includes receiving a first portion of a sync field of a packet at a receiver. The sync field includes the first portion and a second portion. The packet includes the sync field and a payload field. The method includes detecting a sync word associated with the packet. The sync word is detected based on the first portion of the sync field and prior to receiving the second portion of the sync field. The method initiates a demodulation stage of the receiver prior to receiving an initial bit of the payload field. Initiating the demodulation stage prior to receipt of the initial bit of the payload field enables a demodulator to perform initial demodulation activity prior to demodulation of the payload field. Demodulation continues if, after the second portion is received, the entire received sync field matches the detected sync word. | 2014-09-11 |
20140254725 | Parameter Estimation in VAMOUS Receivers - A desired signal and interfering signal are transmitted in the same timeslot and on the same frequency using an Adaptive Quadrature Phase Shift Keying (AQPSK) modulated carrier. When the Sub-Channel Power Imbalance Ratio (SCPIR) for the AQPSK modulated carrier is large and favors the interfering signal, the interfering signal is demodulated first to obtain demodulated soft bits. The demodulated soft bits corresponding to the interfering signal are then used to estimate receiver control parameters, such as Doppler shift, frequency offset, timing error, gain, etc. Using the demodulated soft bits corresponding to the interfering signal improves the accuracy of the receiver control parameters when the SCPIR is large, and results in better overall performance of the receiver. | 2014-09-11 |
20140254726 | ANTENNA SWITCHING APPARATUS BASED ON SPATIAL MODULATION - An antenna switching apparatus based on spatial modulation includes a plurality of antennas; a control signal generator configured to generate a plurality of switching control signals; and a plurality of switches configured to switch on to apply a transmission signal to the respective antennas according to the respective switching control signals. Further, the antenna switching apparatus includes a delay analyzer configured to receive the transmission signal output from each of the plurality of switches to calculate delay information for synchronizing the switching control signals applied to the respective switches; and a delay adjuster configured to synchronize the switching control signals to apply the synchronized switching control signals to the respective switches according to the calculated delay information. | 2014-09-11 |
20140254727 | METHOD AND APPARATUS FOR LATTICE REDUCTION WITH REDUCED COMPUTATIONAL COMPLEXITY - Provided is a method and apparatus for lattice reduction with reduced computational complexity. The apparatus and method include calculating an R matrix using sorted QR decomposition, and conducting an R-value test using an R-value based on diagonal elements of the R matrix and a threshold value. The R matrix is an upper triangular matrix. The apparatus and method further execute a loop comprising a size reduction and a conditional update of a basis vector corresponding to a column element of the R matrix in response to the R-value being greater than or equal to the threshold value. The apparatus and method conduct another R-value test based on the R matrix comprising the updated basis vector in response to the basis vector being updated. | 2014-09-11 |
20140254728 | METHOD FOR GRAY CODING A SYMBOL ALPHABET - A method for Gray coding a symbol alphabet transmitted utilizing a plurality of non-periodic waveforms. The method for Gray coding a symbol alphabet transmitted utilizing a plurality of non-periodic waveforms may include producing a matched filter for each of the non-periodic waveforms, forming an adjacency matrix indicating which symbols are most likely to be confused with each other, ordering the symbols accordingly, and applying a Gray code to the ordered symbols. The method may also include a symbol alphabet with a plurality of symbols that may also include means for building an adjacency matrix describing likelihood of inter-symbol interference and means for ordering the symbols based on the adjacency matrix and for Gray coding the ordered symbols. The method may also include applying a standard Gray code to an ordered symbol list such that successive symbols in the ordered list are assigned bit sequences that differ by one bit. | 2014-09-11 |
20140254729 | Detecting Digital Radio Signals - In one embodiment, a receiver front end circuit can receive and process multiple radio frequency (RF) signals and output downconverted signals corresponding to these signals. In turn, multiple signal processors can be coupled to this front end. Specifically, a first signal processor can receive and process the downconverted signals to output a first signal obtained from content of a first RF signal, and a second signal processor can receive and process the downconverted signals to output a second signal obtained from content of a second RF signal. In addition, the apparatus may include a detection circuit coupled to the receiver front end circuit to detect presence of at least the second signal and enable the second signal processor responsive to the detected presence. | 2014-09-11 |
20140254730 | REDUCING ELECTROMAGNETIC RADIATION EMITTED FROM HIGH-SPEED INTERCONNECTS - Systems and methods reduce electromagnetic interference from high speed data carried by wired interconnects with a radio receiver for at least one protected radio frequency band. A spectral encoder changes the encoding of the high speed data to modify its frequency spectrum and reduce its spectral in the protected frequency band. The wired interconnect carries the spectrally encoded data to its destination, where it is spectrally decoded back to its original form. Spectral encoding may include polynomial scrambling. The data may be encoded with different coding parameters in parallel and the best result selected for communication over the wired interconnect. The coding parameters may be changed depending on which radio receivers and/or protected frequency bands are in use at any given time. | 2014-09-11 |
20140254731 | Dithering Circuit for Serial Data Transmission - A system for determining a unit time of a serial transmission protocol, wherein the serial transmission protocol defines a unit time (UT) by transmitting a calibration pulse having a predetermined length of N*UT and wherein a receiver is operated by system clock, includes: a clock divider for dividing the system clock by M, wherein M evenly divides N, and a detector for sampling a received data nibble length by using a dithered sampling clock. | 2014-09-11 |
20140254732 | TRANSCODING METHOD FOR MULTI-WIRE SIGNALING THAT EMBEDS CLOCK INFORMATION IN TRANSITION OF SIGNAL STATE - A method for performing multi-wire signaling encoding is provided in which a clock signal is encoded within symbol transitions. A sequence of data bits is converted into a plurality of m transition numbers. Each transition number is converted into a sequential symbol number from a set of sequential symbol numbers. The sequential symbol number is converted into a raw symbol that can be transmitted over a plurality of differential drivers. The raw symbol is transmitted spread over a plurality of n wires, wherein the clock signal is effectively embedded in the transmission of raw symbols since the conversion from transition number into a sequential symbol number guarantees that no two consecutive raw symbols are the same. The raw symbol is guaranteed to have a non-zero differential voltage across all pairs of the plurality of n wires. | 2014-09-11 |
20140254733 | CIRCUIT TO RECOVER A CLOCK SIGNAL FROM MULTIPLE WIRE DATA SIGNALS THAT CHANGES STATE EVERY STATE CYCLE AND IS IMMUNE TO DATA INTER-LANE SKEW AS WELL AS DATA STATE TRANSITION GLITCHES - A clock recovery circuit is provided comprising a receiver circuit and a clock extraction circuit. The receiver circuit may be adapted to decode a differentially encoded signal on a plurality of data lines, where at least one data symbol is differentially encoded in state transitions of the differentially encoded signal. The clock extraction circuit may be adapted to obtain a clock signal from state transition signals derived from the state transitions while compensating for skew in the different data lines, and masking data state transition glitches. | 2014-09-11 |
20140254734 | APPARATUS FOR DYNAMICALLY ADAPTING A CLOCK GENERATOR WITH RESPECT TO CHANGES IN POWER SUPPLY - Described is an integrated circuit (IC) with apparatus for dynamically adapting a clock generator, e.g., phase locked loop (PLL), with respect to changes in power supply. The apparatus comprises: a voltage droop detector coupled to power supply node, the voltage droop detector to generate a digital code word representing voltage droop on the power supply node; and a PLL including a ring oscillator coupled to the power supply node, the ring oscillator to generate an output clock signal, the ring oscillator operable to adjust frequency of the output clock signal according to the digital code word. | 2014-09-11 |
20140254735 | TRANSMIT REFERENCE SIGNAL CLEANUP WITHIN A SYNCHRONOUS NETWORK APPLICATION - A network processor is described that includes a network reference clock processor module for providing an at least substantially low-jitter, low-wander reference signal. In one or more embodiments, the network reference clock processor module includes a digital phase locked loop configured to at least substantially attenuate a wander noise portion from a reference signal. The network reference clock processor module also includes an analog phase locked loop communicatively coupled to the digital phase locked loop and configured to receive the reference signal from the digital phase locked loop. The analog phase locked loop is configured to attenuate a jitter noise portion having a first frequency characteristic from the reference signal and to provide the reference signal to a transceiver communicatively coupled to the analog phase locked loop. The transceiver is configured to attenuate a jitter noise portion having a second frequency characteristic from the reference signal. | 2014-09-11 |
20140254736 | METHOD FOR PRODUCING, FROM A PREFORM MADE OF AUSTENITIC STAINLESS STEEL WITH A LOW CARBON CONTENT, A WEAR-RESISTANT AND CORROSION-RESISTANT CLADDING FOR A NUCLEAR REACTOR, CORRESPONDING CLADDING AND CORRESPONDING CONTROL CLUSTER - A method for producing a wear-resistant and corrosion-resistant stainless steel part for a nuclear reactor is provided. This method includes steps of providing a tubular blank in austenitic stainless steel whose carbon content is equal to or lower than 0.03% by weight; shaping the blank; finishing the blank to form the cladding; hardening the outer surface of the cladding by diffusing one or more atomic species; the blank, before the providing step or during the shaping or finishing step, being subjected to at least one solution annealing with sub-steps of: heating the blank to a sufficient temperature and for a sufficient time to solubilise any precipitates present; quenching the blank at a rate allowing the austenitic structure to be maintained in a metastable state at ambient temperature and free of precipitates. | 2014-09-11 |
20140254737 | MANAGING NUCLEAR REACTOR SPENT FUEL RODS - A spent nuclear fuel rod canister includes a submersible pressure vessel including a casing that defines an interior cavity, the casing including a corrosion resistant and heat conductive material with a thermal conductivity of above about 7.0 watts per meter per kelvin; and a rack enclosed within the interior cavity and configured to support one or more spent nuclear fuel rods. | 2014-09-11 |
20140254738 | ALTERNATIVE AIR SUPPLY AND EXHAUST PORT FOR AIR-OPERATED VALVE - The present invention is directed to remote operation of an operation valve such as an air operated valve even at the time of power loss. A gas supply apparatus of the present invention includes: an operation valve mounted in some midpoint of a piping for passing at least gas in a plant and operating a valve body by the gas flowing in the piping; an solenoid valve mounted in some midpoint of the piping and allowing/stopping flow of the gas to the operation valve; and a gas supply source for supplying gas to the solenoid valve. A switching valve for switching between exhaust from the solenoid valve and gas supply to the solenoid valve is mounted in an exhaust line of the solenoid valve and, at the time of power loss, the switching valve is switched to connection to the gas supply source for supplying gas to the solenoid valve. | 2014-09-11 |
20140254739 | Head Module, Large-scale Container and Method for Manufacturing the Both - A head module for a large-scale container, a large-scale container having the head module, and methods for manufacturing the head module and the large-scale container. The method for manufacturing a head module comprises providing a head having an annular opening, the head being composed of a plurality of petals, providing a plurality of cylinder plates, and forming a head cylindrical ring, connecting in order the plurality of cylinder plates to the end surface of the annular opening and joining facing sides of all adjacent cylinder plates. Based on the unfitness of the petals at the annular opening of the head, gaps between adjacent cylinder plates may be adjusted, and/or the positions of the cylinder plates on the end surface of the annular opening of the head may be adjusted radially inwards or outwards. | 2014-09-11 |
20140254740 | FUEL RODS WITH WEAR-INHIBITING COATINGS AND METHODS OF MAKING THE SAME - Nuclear reactor components are treated with thermal methods to increase wear resistance. Example treatments include thermal treatments using particulate or powderized materials to form a coating. Methods can use cold spray, with low heat and high velocities to blast particles on the surface. The particles impact and mechanically deform, forming an interlocking coating with the surface and each other without melting or chemically reacting. Materials in the particles and resultant coatings include metallic alloys, ceramics, and/or metal oxides. Nuclear reactor components usable with methods of increased wear resistance include nuclear fuel rods and assemblies containing the same. Coatings may be formed on any desired surface, including fuel rod positions where spacer contact and fretting is most likely. | 2014-09-11 |
20140254741 | SPACERS FOR NUCLEAR FUEL ASSEMBLIES - Fuel spacers include a perimeter piece and alignment strips extending within the perimeter piece. Alignment strips may have directional variation while still extending in an overall straight line between two contact points on the perimeter piece. Two alignment strips, by their relative positioning and shape, create distinct openings for fuel rods, through which rods may pass and be supported by the spacer on all sides. Alignment strips can be parallel or skew but need not physically intersect or extend at overall right angles to form such surrounding and supporting openings. Shape may be variable, such as a waveform, zig-zag, or saw-tooth. Several layers of alignment strips at any desired angle are useable in spacers, and alignment strips may be varied in length, shape, and number to account for different fuel assembly sizes and features, such as water rods. | 2014-09-11 |
20140254742 | DELAY MEASUREMENT DEVICE, METHOD AND MEDIUM - An electronic circuit delay measurement device that includes: a delay section configured by a loop that reduces a pulse width of an input pulse by a specific reduction time and outputs the pulse, and that is connected such that the output pulse is employed as input; a pulse output section that is provided in the delay section loop, and that outputs a pulse of pulse width determined according to a delay time of an electronic circuit of a delay time measurement target when provided with a signal for starting a delay measurement, and that, for a pulse that has been input, outputs a pulse of pulse width determined according to the delay time of the electronic circuit; and a counting section that counts a pulse number of pulses output from the pulse output section. | 2014-09-11 |
20140254743 | SHIFT REGISTER - Disclosed herein is a shift register in which leakage of charges from a voltage at a set node is prevented to stabilize an output from a stage. The shift register includes a plurality of stages for sequentially outputting scan pulses. Each stage includes a node controller for controlling signal states of a set node and a reset node, and an output unit supplied with any one of a plurality of clock pulses having different phases. The output unit outputs the supplied clock pulse as a scan pulse through an output terminal thereof according to the signal states of the set node and reset node. The node controller includes a first discharging switching device which is turned on or off in response to a scan pulse from a downstream stage. The first discharging switching device is connected between any one of a plurality of clock transfer lines and the set node. | 2014-09-11 |
20140254744 | Liquid Crystal Display Device and Electronic Device Including the Same - A driver circuit includes first to third transistors, a first circuit, and a second circuit. In the first transistor, a first terminal is electrically connected to a second wiring, a second terminal is electrically connected to a first wiring, and a gate is electrically connected to the second circuit and a first terminal of the third transistor. In the second transistor, a first terminal is electrically connected to the first wiring, a second terminal is electrically connected to a sixth wiring, a gate is electrically connected to the first circuit and a gate of the third transistor. A second terminal of the third transistor is electrically connected to the sixth wiring. The first circuit is electrically connected to a third wiring, a fourth wiring, a fifth wiring, and the sixth wiring. The second circuit is electrically connected to the first wiring, the second wiring, and the sixth wiring. | 2014-09-11 |
20140254745 | Medical X-Ray Photography Apparatus - A medical X-ray photography apparatus includes the turning arm and a moving mechanism. The turning arm supports an X-ray generator and an X-ray detector. The moving mechanism includes a turning part that turns the turning arm and a moving part that moves the turning arm along a two-dimensional plane orthogonal to an axial direction of a turning shaft. The medical X-ray photography apparatus also includes a photographic region assignment receiving part that receives an operation to assign a part of a dental arch as a pseudo intraoral radiography region, a main-body control part that controls the moving mechanism based on a movement starting signal to move the turning arm to a predetermined photography starting position corresponding to the pseudo intraoral radiography region, and a signal output switch that includes a movement starting signal output part outputting the movement starting signal to the main body control part. | 2014-09-11 |
20140254746 | X-RAY CT SYSTEM - An X-ray CT system including: a rotator including an X-ray tube installed therein; a gantry, arranged on a floor part, and configured to rotatably support the rotator; a cover configured to cover the rotator and the gantry from the outside; and an elastic member, and mounted along the lower edge of the cover, having restoring force, and configured to elastically be in contact with the floor part against the restoring force. The X-ray CT system can reduce noise from inside of the cover. | 2014-09-11 |
20140254747 | X-RAY IMAGING APPARATUS, WEDGE FILTER APPARATUS, AND METHOD OF CONTROLLING WEDGE FILTER - According to one embodiment, a flexible wedge filter is arranged between an X-ray tube and an examinee to attenuate a dose according to an X-ray from the X-ray tube. The flexible wedge filter has a plurality of filter modules | 2014-09-11 |
20140254748 | SYSTEM AND METHOD FOR SAVING TIME AND DOSE IN COMPUTED TOMOGRAPHY - The present invention pertains to a system and method for X-ray imaging wherein a targeted fluence at the detector for projection images can be achieved at a plurality of projection angles around the imaging subject by control of exposure times implemented during image acquisition. Exposure time for a second projection image may be determined by the fluence in a first projection image, and in a third projection image by the fluence in a second projection image, where projection images are acquired within two degrees of one another. An acquisition parameter calculation can be configured to calculate acquisition parameters, such as said exposure times, to achieve the targeted fluence in projection images and can be coupled to a rotation controller that implements the acquisition parameters by controlling a relative angle between the imaging subject and X-ray image acquisition device. | 2014-09-11 |
20140254749 | PHOTON COUNTING DETECTOR - An imaging system ( | 2014-09-11 |
20140254750 | MEDICAL X-RAY CT PHOTOGRAPHY APPARATUS - A medical X-ray CT photography apparatus body includes a turning arm that supports an X-ray generator and an X-ray detector while the X-ray generator and the X-ray detector are opposed to each other with the subject interposed therebetween, a bracket part that fixedly supports an axial center position of a turning shaft provided in the turning arm, and a support drive part that turns the turning arm about the turning shaft with respect to the bracket part. The medical X-ray CT photography apparatus body also includes a subject chair on which the subject sits, a chair moving mechanism that linearly moves the subject chair in a front-back direction (Y-axis direction) of the subject, and a main-body controller that performs the panoramic X-ray photography by controlling the chair moving mechanism and the support drive part in conjunction with each other. | 2014-09-11 |
20140254751 | RADIOGRAPHIC EXAMINATION APPARATUS AND METHOD FOR THE SAME - A radiographic examination apparatus improves response to fluoroscopy or continuous shooting by changing promptly the power-output of an X-ray tube. The apparatus and method, when an absolute value of variation C per fixed time interval between the filament electric current of current pulse-output calculated by the filament electric current variation calculation element is more than a setup value, a flash control between pulse conducts increases or decreases temporarily the filament electric current between pulses to become the filament electric current on flash control between pulses calculated by a filament electric current calculation element based on a radiation condition of a current pulse-output and the radiation condition of following pulse-output. | 2014-09-11 |
20140254752 | LUMINESCENCE BASED SPECTROMETERS - Various embodiments of systems, components, modules, routines, and processes for luminescence based spectral measurement are described herein. In one embodiment, a method for measuring a scintillation property of a sample includes directing an ionizing radiation toward the sample, thereby inducing the sample to produce an emission. The method also includes acquiring a spectral luminescence of the produced emission by the sample, the spectral luminescence including a plurality of luminescence intensities at corresponding emission wavelengths or frequencies. The scintillation property of the sample may then be determined based on the acquired spectral luminescence. | 2014-09-11 |
20140254753 | RADIOGRAPHIC APPARATUS AND METHOD FOR THE SAME - A radiographic apparatus detector and method therefore obtains an image having excellent recognition without the effect of body movement. A single composite image is generated by connecting strip images in the movement direction of a radiation emitter, which are extending in a direction orthogonal to an emitter movement direction. A flat panel detector (FPD) moves so that an incident radiation region in the FPD follows the shooting. A transmissive image with an improved visual recognition is obtained since shooting the strip image in the FPD is conducted by using an unused part. | 2014-09-11 |
20140254754 | RADIATION GENERATING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation generating apparatus including: a radiation generating unit for emitting radiation through a transmission window; and a movable diaphragm unit including a restricting blade for adjusting a size of a radiation field and a light projecting and collimating device for making simulation display of the radiation field with a visible light field, in which the light projecting and collimating device includes a light source for emitting visible light, and a reflection plate disposed obliquely to a radiation center axis, the reflection plate having a reflection surface for reflecting the visible light and transmitting the radiation; the visible light field is formed of the visible light which is emitted from the light source and is reflected by the reflection plate; and a compensating member having a thickness variation for reducing unevenness of the radiation emitted in the radiation field is disposed on a radiation exit side of the reflection plate. | 2014-09-11 |
20140254755 | X-RAY GENERATION TUBE, X-RAY GENERATION DEVICE INCLUDING THE X-RAY GENERATION TUBE, AND X-RAY IMAGING SYSTEM - Provided is a high-output X-ray generation tube in which thermal damage to a target is reduced. The X-ray generation tube includes a target, an electron source, and a grid electrode having multiple electron passage apertures disposed between the target and the electron source. A source-side electron beam on the electron source side with respect to the grid electrode has a current density distribution, and the grid electrode has an aperture ratio distribution so that a region of the source-side electron beam in which a current density is largest is aligned with a region of the grid electrode in which an aperture ratio is smallest. | 2014-09-11 |
20140254756 | RADIATION IMAGING SYSTEM, RADIATION IMAGING APPARATUS, AND APPARATUS - An X-ray imaging system includes an X-ray imaging apparatus for converting an X-ray into an image signal, a cable for transmitting signals to the X-ray imaging apparatus, a connector, disposed at an end of the cable, for connecting the cable and the X-ray imaging apparatus, and fixing portions for fixing the connector and the X-ray imaging apparatus and allowing the connector to be detached from the X-ray imaging apparatus by a detachment load. A cable outlet of the connector is separated from an outline center axis of the connector. The fixing portions include a first fixing portion disposed on the cable outlet side with respect to the connector outline center axis, and a second fixing portion disposed on the opposite side of the cable outlet. The moment of force required to detach the first fixing portion is larger than that required to detach the second fixing portion. | 2014-09-11 |
20140254757 | X-RAY IMAGING APPARATUS AND CONTROL METHOD FOR THE SAME - Disclosed are an X-ray imaging apparatus, which may acquire different phase contrast image signals on a per energy band basis simultaneously without moving a detector or emitting X-rays multiple times by using a photon counting detector that separates detected X-rays into a plurality of energy bands, and a control method for the same. The X-ray imaging apparatus includes an X-ray source which is configured to generate X-rays and emit the X-rays toward a subject, an X-ray detector which is spaced apart from the subject by a predetermined distance and configured to detect X-rays which have propagated through the subject, and to separate the detected X-rays into a plurality of energy bands in order to acquire phase contrast image signals on a per energy band basis, and an image processor which is configured to form a phase contrast image of the subject by using the acquired phase contrast image signals. | 2014-09-11 |
20140254758 | X-RAY IMAGING SYSTEM - A management apparatus for managing radiation imaging receives function information about a radiation imaging apparatus and communication information about communication between the radiation imaging apparatus and a radiation generation apparatus. Based on the function information or communication information received, an operation setting unit in the management apparatus sets an operation mode of the radiation imaging apparatus; and a control unit perform control corresponding to radiation imaging based on the set operation mode. | 2014-09-11 |
20140254759 | IMAGING CONTROL APPARATUS, RADIOGRAPHIC IMAGING APPARATUS, RADIOGRAPHIC IMAGE CAPTURING SYSTEM, CONTROL METHOD, AND NON-TRANSITORY RECORDING MEDIUM STORING PROGRAM CAUSING COMPUTER TO EXECUTE CONTROL METHOD - An imaging control apparatus includes a determination unit and a setting unit. The determination unit is configured to determine, based on a state of communication to a radiation generator, which of a synchronous imaging mode and an asynchronous imaging mode is to be used to obtain radiographic image data. The synchronous imaging mode is a mode in which a radiographic imaging apparatus obtains radiographic image data by operating in synchronization with the radiation generator. The asynchronous imaging mode is a mode in which the radiographic imaging apparatus obtains radiographic image data without operating in synchronization with the radiation generator. The setting unit is configured to output an instruction for setting the imaging mode determined by the determination unit in the radiographic imaging apparatus such that the radiographic imaging apparatus obtains the radiographic image data in the imaging mode determined by the determination unit. | 2014-09-11 |