03rd week of 2012 patent applcation highlights part 29 |
Patent application number | Title | Published |
20120014432 | APPARATUS, METHOD AND PROGRAM FOR IMAGE CONVERSION - Disclosed is a conversion apparatus including a decoding unit that decodes input encoded data into image data, and a size conversion unit that converts size of the image data based on a size conversion request received from outside and that expands/contracts, or splits/synthesizes motion vector or prediction mode of encoding parameters, received from the decoding unit, based upon a size conversion request, and an encoding unit that encodes image data after size conversion using the prediction mode or motion vector converted and transmits the resulting encoded image data via a transmission buffer to outside. | 2012-01-19 |
20120014433 | ENTROPY CODING OF BINS ACROSS BIN GROUPS USING VARIABLE LENGTH CODEWORDS - This disclosure describes techniques for entropy coding bins representing video data symbols with reduced bottlenecks in the entropy coding process. The techniques of this disclosure enable an entropy coding device to perform entropy coding of bins grouped into bin subsets from across different bin groups, e.g., context groups or probability groups, using variable length codewords. In one example, the bins may be assigned to context groups with no context dependencies between the context groups. In another example, the bins may be assigned to probability groups associated with different intervals of probability states. The bins may be grouped into the bin subsets according to determined formations of the bin subsets. In this way, the entropy coding device may reduce an amount of bin and codeword buffering by efficiently forming the bin subsets and designing variable length codewords for each of the bin subsets. | 2012-01-19 |
20120014434 | SYSTEM AND METHOD FOR THINNING OF SCALABLE VIDEO CODING BIT-STREAMS - A system for videoconferencing that offers, among other features, extremely low end-to-end delay as well as very high scalability. The system accommodates heterogeneous receivers and networks, as well as the best-effort nature of networks such as those based on the Internet Protocol. The system relies on scalable video coding to provide a coded representation of a source video signal at multiple temporal, quality, and spatial resolutions. These resolutions are represented by distinct bitstream components that are created at each end-user encoder. System architecture and processes called SVC Thinning allow the separation of data into data used for prediction in other pictures and data not used for prediction in other pictures. SVC Thinning processes, which can be performed at video conferencing endpoints or at MCUs, can selectively remove or replace with fewer bits the data not used for prediction in other pictures from transmitted bit streams. This separation and selective removal or replacement of data for transmission allows a trade-off between scalability support (i.e. number of decodable video resolutions), error resiliency and coding efficiency. | 2012-01-19 |
20120014435 | Soft Decision and Iterative Video Coding for MPEG and H.264 - A method of encoding video data using soft decision quantization makes use of iterative encoding to provide the ability to optimize encoding across different functional elements in a hybrid video encoder. Iterative encoding is used to allow quantization step size, motion prediction and quantization levels to be optimized despite their interrelated nature. | 2012-01-19 |
20120014436 | PARALLEL VIDEO CODING BASED ON BLOCK SIZE - A system encoding and decoding video that uses a parallel encoding and decoding technique. | 2012-01-19 |
20120014437 | PARALLEL VIDEO CODING BASED ON SAME SIZED BLOCKS - A system encoding and decoding video that uses a parallel encoding and decoding technique. | 2012-01-19 |
20120014438 | PARALLEL VIDEO CODING BASED ON PREDICTION TYPE - A system encoding and decoding video that uses a parallel encoding and decoding technique. | 2012-01-19 |
20120014439 | PARALLEL VIDEO CODING BASED ON SCAN ORDER - A system encoding and decoding video that uses a parallel encoding and decoding technique. | 2012-01-19 |
20120014440 | PARALLEL VIDEO CODING BASED ON MAPPING - A system encoding and decoding video that uses a parallel encoding and decoding technique. | 2012-01-19 |
20120014441 | PARALLEL VIDEO CODING BASED ON BOUNDARIES - A system encoding and decoding video that uses a parallel encoding and decoding technique. | 2012-01-19 |
20120014442 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - The present disclosure provides an image processing device including, a feature quantity generating section configured to generate a feature quantity used as a determination criterion for determining which of a temporal prediction using correlation between images in a temporal direction and a parallactic prediction using correlation between images of different visual points is dominant in image coding, and a reference index assigning section configured to assign reference indices to reference pictures used in the predictions on a basis of the feature quantity generated by the feature quantity generating section. | 2012-01-19 |
20120014443 | DIFFERENTIAL CODING OF INTRA DIRECTIONS (DCIC) - Spatial domain directional intra prediction has been shown to be very effective to remove the correlation between the pixels in the current block and reconstructed neighbors. In AVC, 8 directional prediction modes (plus the DC prediction mode) are defined. The prediction mode number is signaled to the decoder using a simple predictive coding method. The previous intra prediction methods have two major disadvantages: lack of precision for arbitrary directional patterns and accuracy lack of accuracy to exploit geometric dependency between blocks. To address these issues, a new method accurately predicts the intra directions from reconstructed neighboring pixels and differentially encode the intra directions. This allows a more precise directional prediction without the significant increase in the cost for transmitting the side information. | 2012-01-19 |
20120014444 | METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE THROUGH INTRA PREDICTION - A method and apparatus for encoding and decoding an image through intra prediction using a pixel of the neighboring block along an extended line having a predetermined gradient about a pixel inside the current block. | 2012-01-19 |
20120014445 | SYSTEM FOR LOW RESOLUTION POWER REDUCTION USING LOW RESOLUTION DATA - A system for encoding and decoding video that uses power reduction techniques. | 2012-01-19 |
20120014446 | SYSTEM FOR LOW RESOLUTION POWER REDUCTION USING DEBLOCKING - A system for encoding and decoding video that uses power reduction techniques. | 2012-01-19 |
20120014447 | SYSTEM FOR LOW RESOLUTION POWER REDUCTION WITH HIGH RESOLUTION DEBLOCKING - A system for encoding and decoding video that uses power reduction techniques. | 2012-01-19 |
20120014448 | SYSTEM FOR LOW RESOLUTION POWER REDUCTION WITH COMPRESSED IMAGE - A system for encoding and decoding video that uses power reduction techniques. | 2012-01-19 |
20120014449 | METHOD AND APPARATUS FOR MULTI-VIEW VIDEO ENCODING USING CHROMINANCE COMPENSATION AND METHOD AND APPARATUS FOR MULTI-VIEW VIDEO DECODING USING CHROMINANCE COMPENSATION - Methods and apparatuses for efficiently coding and decoding multi-view video are provided. A method of decoding multi-view video includes: interpreting a first picture type indicating whether a current picture of the multi-view video is a reference video type for inter prediction; interpreting a block type indicating a method of determining a motion vector of a current block of the current picture; interpreting a chrominance compensation value of the current block based on at least one of the interpreted first picture type and the interpreted block type; and performing chrominance compensation on the current block by using the interpreted chrominance compensation value. | 2012-01-19 |
20120014450 | SYSTEM FOR LOW RESOLUTION POWER REDUCTION WITH DEBLOCKING FLAG - A system for encoding and decoding video that uses power reduction techniques. | 2012-01-19 |
20120014451 | Image Encoding Methods, Image Decoding Methods, Image Encoding Apparatuses, and Image Decoding Apparatuses - In an embodiment, an image encoding method is provided. The image encoding method may include a first partial encoding step, wherein first partially encoded image data is generated based on first input data after the first input data is available; a second partial encoding step, wherein second partially encoded image data is generated based on second input data after the second input data is available, before the first input data is available; and an encoded image data generating step, wherein encoded image data is generated based on the first partially encoded image data and the second partially encoded image data. | 2012-01-19 |
20120014452 | MULTI-PARAMETER MOTION FOR EFFICIENT PREDICTION IN VIDEO COMPRESSION - Motion Compensated Prediction (MCP) has been a key factor in most advanced video compression schemes. For further reduction in the residual signal energy in B-frames, bidirectional prediction where two motion-compensated signals are superimposed has also been utilized in most prior video coding standards such as MPEG-2 or MPEG-4/AVC. Syntax changes and appropriate motion vector prediction that allows efficient use of multi-parameter MCP is described. The prediction signal is constructed by linearly combining the motion-compensated signals from each parameter (or motion vector). | 2012-01-19 |
20120014453 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing method according to the present invention comprises the step of; inputting a plurality of images; reducing a first image of the plurality of images to a reduced image in a predetermined ratio; specifying a feature point included in the reduced image, on the basis of image data of the reduced image; designating a feature point in the first image so that the feature point corresponds to the feature point in the reduced image; calculating a corresponding point which is similar to the feature point in the first image, from a second image of the plurality of images by using a filter, the filter being corresponding to the predetermined ratio at time of reducing the first image; and determining a motion vector between the first image and the second image on the basis of the feature point and the calculated corresponding point. | 2012-01-19 |
20120014454 | Method and Apparatus for Parallel Context Processing - A method and apparatus for parallel context processing for example for high coding efficient entropy coding in HEVC. The method comprising retrieving syntax element relating to a block of an image, grouping at least two bins belonging to similar context based on the syntax element, and coding the grouped bins in parallel. | 2012-01-19 |
20120014455 | Variable Localized Bit-Depth Increase for Fixed-Point Transforms in Video Coding - This disclosure describes techniques for mitigating rounding errors in a fixed-point transform associated with video coding by applying a variable localized bit-depth increase at the transform. More specifically, the techniques include selecting a constant value based on a size of a fixed-point transform in a video coding device and applying a variable localized bit-depth increase at the transform with a value equal to the constant value. Applying the variable localized bit-depth increase includes left-shifting a transform input signal by a number of bits equal to the constant value before the fixed-point transform, and right-shifting a transform output signal by a number of bits equal to the constant value after the fixed-point transform. The constant value is selected from a plurality of constant values stored on the video coding device. Each of the constant values is pre-calculated for one of a plurality of different transform sizes supported by the video coding. | 2012-01-19 |
20120014456 | VISION-BASED QUALITY METRIC FOR THREE DIMENSIONAL VIDEO - In general, techniques are described for determining a vision-based quality metric for three-dimensional (3D) video. A device ( | 2012-01-19 |
20120014457 | METHODS AND DEVICES FOR DATA COMPRESSION USING CONTEXT-BASED CODING ORDER - A method is presented for entropy coding data using an entropy coder to encode an input sequence. A context model is used to determine the context of each symbol and a probability estimation is made for each symbol. A method is presented for revising the coding order to be context-based, grouping symbols consecutively on the basis that they have a common context. A method is presented for entropy decoding a bitstream of encoded data encoded using a context-based coding order. | 2012-01-19 |
20120014458 | DTV TRANSMITTING SYSTEM AND METHOD OF PROCESSING DATA IN DTV TRANSMITTING SYSTEM - A DTV transmitting system includes two pre-processors. The first pre-processor codes high-priority enhanced data for forward error correction (FEC) and expands the FEC-coded data. The second pre-processor codes low-priority enhanced data for FEC and expands the FEC-coded low-priority enhanced data. The DTV transmitting system further includes a data formatter generating enhanced data packets including the pre-processed data, a multiplexer multiplexing the enhanced data packets with main data packets, an RS encoder RS-coding the multiplexed data packets, a data interleaves interleaving the RS-coded data packets, and a block processor which codes each block of enhanced data in the interleaved enhanced data packets and bypasses the interleaved main data packets. | 2012-01-19 |
20120014459 | Power Line Communication Networks and Methods employing Multiple Widebands - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 2012-01-19 |
20120014460 | Compensation for Transmission Line Length Variation in a Serdes System - Described embodiments provide a method and system for signal compensation in a SERDES communication system that includes monitoring the quality of a data signal after passing through a transmission channel. The quality of the data signal is monitored with at least one of a BER calculation algorithm and a received eye quality monitoring algorithm. Variations in channel length of the transmission channel are compensated for by i) adjusting a length of transmission line delay of the data signal from the transmission channel, ii) comparing the data signal quality with a threshold for the adjusted data signal; and iii) repeating i) and ii) until the data signal quality meets the threshold. | 2012-01-19 |
20120014461 | Phase adjustment method, data transmission device, and data transmission system - A method of adjusting a phase includes generating phase adjustment patterns corresponding to transmission circuits by performing a serial-to-parallel conversion on a fundamental phase adjustment pattern in a transmission side circuit; transmitting, by the transmission circuits, transmission signals including the phase adjustment patterns; generating phase adjustment patterns corresponding to receiving circuits corresponding to the transmission circuits by performing the serial-to-parallel conversion on the fundamental phase adjustment pattern in a receiving side circuit; receiving, by the receiving circuits, the transmission signals using a reception clock signal; comparing signal patterns included in the transmission signals with the phase adjustment patterns and output comparison results; and adjusting a phase of the reception clock signal based on the comparison results. | 2012-01-19 |
20120014462 | Optimal power allocation method for an LSSTC wireless transmission system - The optimal power allocation method for an LSSTC wireless transmission system utilizes Layered Steered Space-Time Codes (LSSTC), a recently proposed multiple-input multiple-output (MIMO) system that combines the benefits of vertical Bell Labs space-time (V-BLAST) scheme, space-time block codes (STBC), and beamforming. A new downlink scheme employs LSSTC with optimal power allocation based on the assumption that the user feeds the base station (BS) with the average signal-to-noise ratio (SNR) per V-BLAST layer through the uplink feedback channel. Such a system enhances the error performance by assigning power to the layers in an optimum manner. | 2012-01-19 |
20120014463 | METHODS AND APPARATUS FOR SELECTING AND USING COMMUNICATIONS RESOURCES IN A COMMUNICATION SYSTEM - Methods and apparatus for determining, e.g., selecting, communications resources, e.g., tones, to use in a communications system are described. The methods are well suited for use in Orthogonal Frequency Division Multiplexing (OFDM) systems. Devices seeking to transmit information select tones in pairs for use in transmitting the information. Each tone pair includes a tone and the corresponding image tone. By restricting a communications device to select communications frequencies in pairs, the problem of interference and reduced dynamic range at a receiver due to IQ imbalance is reduced, as compared to the case where devices may use a tone independent of the corresponding image tone for transmission purposes, since the path loss from the transmitter to the receiver is likely to be the same for both tones and the transmission power level is controlled by an individual device using both of the tones. | 2012-01-19 |
20120014464 | WIRELESS MULTIMEDIA SYSTEM - A customer premises installation has a wireless multimedia center (WMC) for reception from one or more signal sources and for distribution of segments of signals from signal sources through the wireless multimedia center to a plurality of end units, in which the signals include video signals and broadband data. The wireless multimedia center receives all the signals and distributes segments of said signals via a transmitter. The video signals are transmitted by orthogonal frequency division multiplexing in which all signals are added together and summed as an orthogonal array having dimensions of time, frequency and amplitude, to transmit spread spectrum multiplexed signals. Each pulse has sufficiently long individual pulse widths to defeat multi-path, reflection and absorption phase induced losses. The video signals are distributed to one or more end units. The end units communicate with the wireless multimedia center, controlling which segments of which signals are distributed to each end unit. | 2012-01-19 |
20120014465 | ITERATIVE CHANNEL ESTIMATION METHOD AND APPARATUS FOR ICI CANCELLATION IN MULTI-CARRIER - A linear iterative channel estimation scheme and corresponding pilot allocation scheme are provided to perfect a channel model that cancels the Inter-Carrier Interference (ICI) for multi-carrier systems (e.g., OFDM, SC-FDMA, MC-CDMA, etc.) under high mobility conditions. Two issues of the linear iterative channel estimation scheme of the channel model, namely, overloaded pilots and increased Gauss noise are specifically addressed by exemplary embodiments. With the iterative channel estimation scheme provided by the present invention, the minimum pilot number is equal to the length of multi-path delay, and the Gauss noise is not increased. | 2012-01-19 |
20120014466 | METHOD AND COMMUNICATION SYSTEM DEVICE FOR THE GENERATION OR PROCESSING OF FODM SYMBOLS IN A TRANSMISSION SYSTEM WITH SPREAD USSER DATA - OFDM symbols are generated using data from one or more users or from one or more data sources represented on a number of sub-carriers. To inhibit multiple-access interference on application of the CDMA principle, the data are transformed in a data-source specific manner and only subsequently allocated to the sub-carriers, independently of the transformation. | 2012-01-19 |
20120014467 | Method of and Equipment For Compensating Carrier Frequency Offset in an Orthogonal Frequency Division Multiplexing Wireless Radio Transmission System - For compensating carrier frequency generation in communication equipment for radio transmission in an Orthogonal Frequency Division Multiplex, OFDM, based wireless radio communication system, in which reference signals known communication equipment are transmitted in a regular time repetitive manner, carrier frequency generation is compensated ( | 2012-01-19 |
20120014468 | METHOD AND APPARATUS FOR CONTROLLING CO-CHANNEL INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - The present invention provides a method and an apparatus of controlling co-channel interference in a base station of a wireless communication system based on collaborative MIMO and the corresponding method and apparatus of assisting a serving base station to control co-channel interference in a mobile station of a wireless communication system based on collaborative MIMO. Since the feedback mechanism based on the codebook is employed in the collaborative MIMO system in the present invention to enable the BS to obtain the precoding information, the present invention can be used to the both TDD mode and FDD mode. Moreover, since the precoding vectors selected by the different mobile stations for a same BS are always orthogonal, multi-user co-channel interference can be reduced. | 2012-01-19 |
20120014469 | WIRELESS COMMUNICATION SYSTEM, DEVICE AND METHOD - A wireless communication system includes an inverse matrix calculating unit which uses an inverse matrix of a channel matrix of a first combination of L antennas (where L is an integer, 1≦L≦N) selected from the N antennas, so as to calculate an inverse matrix of a channel matrix of a second combination of L antennas selected from the N antennas through an arithmetic operation, and an antenna selecting unit which selects a combination of L antennas from the N antennas as L antennas to be used for communication, the selected combination determining a reference value for antenna selection related to the inverse matrix calculated by the inverse matrix calculating unit so that the reference value for antenna selection fits a successive interference cancellation process carried out for a signal transmitted from the L antennas of the selected combination. | 2012-01-19 |
20120014470 | QUADRATURE MODULATOR WITH FEEDBACK CONTROL AND OPTICAL COMMUNICATIONS SYSTEM USING THE SAME - The method and system are disclosed for automatic feedback control of integrated optical quadrature modulator for generation of optical quaternary phase-shift-keyed signal in coherent optical communications. The method comprises the steps of detecting at least a part of an output optical signal from the QPSK modulator, extracting of a particular portion of the output signal in frequency domain, and processing the signal in frequency domain to optimize the transmission of an optical link. The system and method of optical communications in fiber or free space are disclosed that implement the quadrature data modulator with automatic feedback control. | 2012-01-19 |
20120014471 | METHODS AND APPARATUS FOR MINIMIZING INTER-SYMBOL INTERFERENCE IN A PEER-TO-PEER NETWORK BACKGROUND - The methods and apparatus described herein are used to operate a wireless device. One method of operating a wireless device includes filtering a first set of digital samples using a first filter at a first time to generate a first signal, transmitting the first signal, filtering a second set of digital samples using a second filter at a second time to generate a second signal, and transmitting the second signal. In one embodiment, an apparatus for operating a wireless device includes a processor configured to filter, at a first wireless device, a first set of digital samples using a first filter at a first time to generate a first signal, transmit, from the first wireless device, the first signal, and filter, at the first wireless device, a second set of digital samples using a second filter at a second time to generate a second signal. | 2012-01-19 |
20120014472 | METHOD, APPARATUS, AND SYSTEM FOR MICROWAVE SIGNAL CORRECTION - A method, an apparatus, and a system are provided in various embodiments of the present invention. According to embodiments of the present invention, the receiver samples the frequency signal from the transmitter to obtain sampling data and obtain the feedback IQ signal from the sampling data, and performs signal correction by using the feedback IQ signal. Sampling the received radio frequency signal does not need an additional component. The receiving channel installed in the receiver can be used to receive the radio frequency signal, which reduces the cost and power consumption. | 2012-01-19 |
20120014473 | TRANSMITTING DATA OVER A COMMUNICATIONS CHANNEL - Techniques for transmitting data over a communications channel are generally described. A value of a property of an inverse of a channel matrix corresponding to the communications channel may be calculated and compared to a threshold value. If the value of the property a first one of greater than or less than the threshold value, at least one transmit message may be altered using a vector perturbation technique to generate data symbols and the data symbols may be precoded using a channel inversion technique to generate precoded data symbols. If the value of the property is the other of greater than or less than the threshold value, the at least one transmit message may be precoded using a channel inversion technique to generate precoded data symbols. | 2012-01-19 |
20120014474 | Method and Means for the Scalable Improvement of the Quality of a Signal Encoding Method - The invention relates to a method for the scalable improvement of the quality of an encoding method according to IT-U Recommendation G.722, including the following steps:-a digital error signal (E) derived from an input signal to be encoded and a prognosis signal is compared in sections to a number of M*LN different reference signals in an iterative process having a number of repeated steps depending on the scope of the expansion, and the reference signal having a minimum error signal of a prescribed error criteria is derived therefrom,-the reference signals are each made up of equidistant Dirac impulses δ(n) according to (I), wherein off=[0 . . . M−1], indicates the distance of the first impulse from a zero time point, α∈{α,α, . . . ,α} indicates the amplitude value, M the distance between the individual pulses, N the number of pulses, and L the number of different levels,-the information about the reference signal having the minimum error signal is transmitted. | 2012-01-19 |
20120014475 | MULTI-ANTENNA COMMUNICATION APPARATUS AND METHOD OF MULTI-ANTENNA COMMUNICATION - To reduce an error rate of received data, a MIMO processing unit receives data transmitted from a transmitter via antennas and separates packets of layers | 2012-01-19 |
20120014476 | Pilot Aided Data Transmission and Reception with Interference Mitigation in Wireless Systems - Embodiments disclosed herein reduce interference at pilot symbols and also enable good interference measurements by using a combination pilot tones and null tones along with null tones. In this type of system, the receivers can estimate tile channel state information without any interference from the remaining transmitters and at the same time the receiver can measure either the individual interference channel states or the interference covariances from the silent periods. The groups of transmitters are reused in geographically separated region using a frequency reuse structure. In a preferred implementation, pilot signal is precoded using a multi-antenna precoder. The precoder may be same for pilot and data. | 2012-01-19 |
20120014477 | METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MULTI-ANTENNA SYSTEM - A method for transmitting a reference signal in a multi-antenna system is provided. The method includes: selecting at least one orthogonal frequency division multiplexing (OFDM) symbol in a subframe containing a plurality of OFDM symbols; allocating a channel quality indication reference signal (CQI RS) capable of measuring a channel state for each of a plurality of antennas to the selected at least one OFDM symbol; and transmitting the CQI RS, wherein the CQI RS is allocated to an OFDM symbol which does not overlap with an OFDM symbol to which a common reference signal to be transmitted to all user equipments in a cell or a dedicated reference signal to be transmitted to a specific user equipment in the cell is allocated. | 2012-01-19 |
20120014478 | ADVANCED LLR PROCESSOR FOR WIRELESS TELECOMMUNICATION SYSTEM - A method and system for processing LLRs, in a receiver, of transmissions over a wireless telecommunication system, the method including receiving multiple soft symbols, selecting a set of appropriate instructions for LLR calculation for the soft symbols, arranging the soft symbols in a register of a processor according to the selected instructions, selecting an appropriate single instruction from the set of instructions to be implemented by the processor using the soft symbols in the register as operands, and calculating, by a computation unit, multiple LLR values for the multiple soft symbols, in parallel, by means of the selected instruction. | 2012-01-19 |
20120014479 | SIGNAL RECEIVING APPARATUS AND SIGNAL PROCESSING METHOD OF THE SAME - A signal receiving apparatus and a signal processing method are provided. The signal receiving apparatus includes: a plurality of signal receiving units which receive analog signals; a plurality of radio frequency (RF) processing units which receive the analog signals from the plurality of signal receiving units and change frequencies of the received analog signals into intermediate frequencies; a plurality of analog-to digital (AD) converters which convert the analog signals having the intermediate frequencies into digital signals; a demodulating unit which demodulates the digital signals; a switching unit which is interposed between the plurality of AD converters and the demodulating unit; and a control unit which controls the switching unit to connect one of the plurality of AD converters to the demodulating unit based on a select signal to select one of the plurality of signal receiving units. | 2012-01-19 |
20120014480 | METHOD FOR SOFT MODULATION IN A WIRELESS TELECOMMUNICATION NETWORK - A method for soft remodulation in a receiver of transmissions over a wireless telecommunication system, the method including obtaining from a FEC decoder a-posteriori LLR values, converting the a-posteriori LLR values into bit probabilities and computing improved soft symbols estimates as expected values using the bit probabilities in a recursive algorithm. Preferably, the step of converting is implemented using a pre-computed Look Up Table (LUT). Preferably, the step of computing is implemented in a Multiplier-Accumulator having a SIMD structure. | 2012-01-19 |
20120014481 | Data Receiver with Improved Response to Long and Short Term Fading - The invention relates to apparatus for the receipt of digital data which is transmitted as a data signal from a remote location and a method by which the receiving apparatus can be designed with a configuration to improve the ability to receive the data signal. The design of the configuration is generated with reference to at least one decision metric which is adapted to suit the known characteristics of the data signal which is being received. | 2012-01-19 |
20120014482 | DATA COMMUNICATION DEVICES, METHODS, & SYSTEMS - Data communication devices, methods, and systems are discussed in this application. In one embodiment, a receiving apparatus generally comprises a detector, an indicator, and a decision device. The detector can detect a number of data streams contained in a signal received on a single physical channel. Detection can be made by comparing a received signal with one or more predetermined sequences and identifying one or more of the plural predetermined sequences as being likely contained within the received signal. Each data stream can be associated with at least one predetermined sequences. The indicator can provide an indication of the data streams likely contained in the signal based on the identified sequences. A decision device can provide data defining a receiver configuration based on the indication, the receiver configuration being suitable for configuring a decoder to decode only the one or more data streams indicated as being likely contained in the signal. Other aspects, embodiments, and features are also claimed and discussed. | 2012-01-19 |
20120014483 | LOW COMPLEXITY OPTIMAL SOFT MIMO RECEIVER - A low-complexity optimal soft MIMO detector is provided for a general spatial multiplexing (SM) systems with two transmit and N | 2012-01-19 |
20120014484 | METHOD AND APPARATUS FOR PERFORMING TEMPERATURE COMPENSATION - Various methods for performing amplifier gain compensation to correct for variations in temperature are provided. One example method includes modifying a gain adjustment value based on a current temperature reading, receiving a signal, | 2012-01-19 |
20120014485 | SIGNAL PROCESSING DEVICE - A prediction error calculating unit | 2012-01-19 |
20120014486 | PRECISION METHOD FOR ALIGNING RADIO FREQUENCY PULSE TIMING CHARACTERISTICS - A system and method for correlating first pulsed signals with second pulsed signals includes a first receiving unit, a second receiving unit and a correlation device. The first receiving unit is disposed to receive from a first device one or more first pulsed signals. The first device may include a plurality of pulsed radio frequency source under test signal sources. The second receiving unit is disposed to receive from a second device one or more second pulsed signals. The second device may include a local oscillator pulsed signal source. The correlation device can correlate the first pulsed signals with the second pulsed signals to align a timing characteristic of the first pulsed signals to the equivalent timing characteristic of the second pulsed signals. | 2012-01-19 |
20120014487 | Adaptive Narrowband Interference Prediction Circuit and Method - An input signal that includes narrowband interference is spectrally enhanced by an adaptive circuit that supplies as output signal(s), portion(s) of NBI at one or more frequencies that change adaptively. The output signal(s) are used in one or more tone predictor(s) to generate, based on prior values of the NBI portion, one or more predicted tone signals that are subtracted from a received signal containing the NBI, and the result is used in the normal manner, e.g. decoded. The adaptive circuit and the one or more tone predictor(s), form a feed-forward NBI predictor wherein the received signal is supplied as the input signal of the adaptive circuit. The result of subtraction may be supplied to a slicer that slices the result, yielding a sliced signal which is subtracted from the received signal to generate a signal can be used as the input signal, to implement a feedback NBI predictor. | 2012-01-19 |
20120014488 | METHOD AND SYSTEM FOR MANAGING WIRELESS LINKS IN A COMMUNICATION NETWORK - A method of operating a communication system comprises establishing a wireless device release time interval for a wireless device release timer at an access node upon establishing an initial network connection between a wireless device and the access node. An initial synchronization process is performed between the wireless device and the access node. The method continues with the access node sending an unsolicited synchronization message to the wireless device and starting the wireless device release timer. A second synchronization process is performed and upon successful completion of the second synchronization process, a success status synchronization response message is sent by the access node to the wireless device. The access node receives a synchronization confirmation message from the wireless device that comprises an identifier corresponding to the identity of the wireless device and upon receiving the confirmation message, the access node cancels the wireless device release timer. | 2012-01-19 |
20120014489 | METHOD AND SYSTEM FOR MAINTAINING WIRELESS LINKS IN A COMMUNICATION NETWORK - A method of operating a communication system comprises sending a frame by an access node to a wireless device where the frame comprises a packet. A counter is initialized and a timer for each frame is initiated. The method continues with the access node determining if a response associated with the packet is received before the expiration of the timer. If the response is received prior to the expiration of the timer, the counter and the timer are reset. If a response is not received prior to the expiration of the timer, the counter is incremented. Upon the counter meeting a criteria of a certain quantity of lost packets, the access node performs a synchronization process. | 2012-01-19 |
20120014490 | REAL TIME DISTRIBUTED EMBEDDED OSCILLATOR OPERATING FREQUENCY MONITORING - A method for clock monitoring in a network is provided. The method comprises receiving a first network clock signal at a network device and comparing the first network clock signal to a local clock signal from a primary oscillator coupled to the network device. | 2012-01-19 |
20120014491 | Nuclear fusion power plant having a liquid reactor core of molten glass that is made laseractive and functions as a tritium breeding blanket which is capable of acousticly compressing/confining fuel so that it radiates and triggers outgoing laser cascades that will reflect from the blast chamber's spherical inside wall and return like photonic Tsunamis, crushing, heating, and causing thermonuclear ignition of the fuel so that heat engines and piezoelectric harvesters can convert the released energy into electricity - A nuclear fusion power plant having a spherical blast-chamber filled with a liquid coolant that breeds tritium, absorbs neutrons, and functions as both an acoustical and laser medium. Fuel bubbles up through the sphere's base and is positioned using computer guided piezoelectric transducers that are located outside the blast-chamber. These generate phase-shifted standing-waves that tractor the bubble to the center. Once there, powerful acoustic compression waves are launched. Shortly before these reach the fuel, an intense burst of light is pumped into the sphere, making the liquid laser-active. When the shockwaves arrive, the fuel temperature skyrockets and it radiates brightly. This, photon-burst, seeds outgoing laser cascades that return, greatly amplified, from the sphere's polished innards. Trapped within a reflecting sphere, squeezed on all sides by high-density matter, the fuel cannot cool or disassemble before thorough combustion. The blast's kinetic energy is absorbed piezoelectrically. | 2012-01-19 |
20120014492 | INSPECTION HOLE PLUG - [Problem to be Solved] To easily perform assembly at the time of plugging an inspection hole. | 2012-01-19 |
20120014493 | REACTOR HEAD SEISMIC SUPPORT TIE ROD SYSTEM - A quick disconnect for a control rod drive mechanism seismic support tie rod system that is remotely operable from a nuclear power plant's operating deck. A wall mounted anchor in the reactor cavity contains one half of a disconnect coupling that interfaces with the other half of the disconnect coupling on the ends of the tie rods employing a remote winching system that is actuated from the top of the reactor head assembly. A latching mechanism is then actuated from the refueling cavity operating deck to lock the tie rod in place and prevent displacement during a seismic or pipe break event. The tie rod may similarly be unlocked from the wall anchor and raised above the reactor head assembly as part of a reactor head disassembly operation to gain access to the core of the reactor vessel for refueling. | 2012-01-19 |
20120014494 | PRESSURE-LOSS ADJUSTING MEMBER REACTOR - [Problem to be Solved] To suppress problems due to a flow of a primary coolant while easily distributing a flow rate of the primary coolant to fuel assemblies. | 2012-01-19 |
20120014495 | MULTI-STAGE JET PUMP MIXER ASSEMBLY - A boiling water nuclear reactor (BWR) multi-stage jet pump mixer assembly according to a non-limiting embodiment of the present invention may include at least one nozzle disposed above a first throat structure which is arranged within a second throat structure. The multi-stage jet pump mixer assembly is configured such that when a drive flow is discharged from the nozzle into the first throat structure, a first suction stage occurs in that a first entrained flow is drawn into the first entrainment entrance and forms a mixed flow. The mixed flow exiting the first throat structure then induces a second entrained flow into the second entrainment entrance during a second suction stage. By employing a multi-stage approach, jet pump efficiency may be improved. | 2012-01-19 |
20120014496 | FUEL ASSEMBLY - A fuel assembly for a nuclear boiling water reactor is provided. The reactor comprises a plurality of such fuel assemblies and a plurality of control rods. Each control rod is insertable between the fuel assemblies. The fuel assembly has a longitudinal center axis and includes a plurality of elongated fuel rods and an elongated channel box. The channel box has inner sides, facing the fuel rods, and outer sides. Each inner and outer side has a longitudinal center line extending in parallel with the center axis and along the length of the channel box. A number of protrusions are distributed along the center line of at least two of the outer sides. The protrusions are configured to ensure a minimum distance between the outer side and an adjacent control rod and to enable the control rod to easily slide over and on top of the protrusions. | 2012-01-19 |
20120014497 | DOOR CYCLE TRACKER - A door cycle tracker for a door with at least an open position and a closed position mounted on a track having at least one spring. The door cycle tracker includes a counter mounted to the door having an actuator for incrementing the counter; a trip lever pivotally mounted adjacent to the counter and moveable to a position in which the trip lever actuates the counter actuator; and a plate assembly mounted adjacent to the track in a location such that when the door approaches a selected position, the trip lever contacts the plate assembly. When the door slides on the track and the trip lever contacts the plate assembly, the trip lever pivots, contacts the counter actuator and increments the counter. | 2012-01-19 |
20120014498 | RADIOGRAPHIC IMAGING APPARATUS, METHOD AND PROGRAM - A radiographic imaging apparatus includes: a radiation source for applying radiation to a subject and at least one marker; a detecting unit for detecting the radiation transmitted through the subject; and an image obtaining unit for moving the radiation source relative to the detecting means, applying the radiation to the subject from a plurality of radiation source positions provided by the movement of the radiation source, and obtaining a plurality of images corresponding respectively to the radiation source positions. The apparatus further includes a radiation source position obtaining unit for obtaining positional information of each radiation source position of interest relative to a reference radiation source position among the radiation source positions based on at least one marker image contained in each of a reference image obtained with the reference radiation source position and an image of interest obtained with the radiation source position of interest. | 2012-01-19 |
20120014499 | CT System - A CT system for scanning a patient is disclosed. In at least one embodiment, the system includes a tube/detector system, which can be set by a control device in respect of tube voltage and/or dose power; a patient couch, which can be displaced in a controlled fashion at least in the direction of a system axis; and a computer system, which can control the CT system. In at least one embodiment, the system includes an evaluation unit for a prescribed logical decision tree, which is integrated into the computer system, and which determines examination and scan parameters for the CT system on the basis of the input of at least one patient parameter described in a parameter list and operates the CT system using these examination and scan parameters. | 2012-01-19 |
20120014500 | Method And Computed Tomography Scanner For Carrying Out An Angiographic Examination - A method and a computed tomography scanner are disclosed for carrying out an angiographic examination of a patient, wherein the utilized computed tomography scanner includes at least one recording system mounted on a gantry such that it can rotate about a z-axis. Projection data is acquired from at least one prescribed angular position of the gantry for at least two different energies of X-ray radiation. The projection data is subsequently combined to form a resulting projection image by evaluating the projection data corresponding to the respective angular position, in which projection image at least one substance, which should be displayed selectively, is imaged with a high image contrast compared to the respective individual projection data. This procedure extends the field of application of the computed tomography scanner to projection-based angiography examinations, which were previously restricted to C-arm systems. 3D image reconstruction methods and projection methods can be carried out on opposite sides and with great flexibility during an examination, without the need for an additional modality. By using a multispectral technique, it is possible to contrast agent. The projection data at dispense with recording a native projection data record without the different energies are moreover acquired with no or little time offset, and so a computationally expensive and error-prone registration of the data records can be dispensed with. | 2012-01-19 |
20120014501 | REAL-TIME TOMOSYNTHESIS GUIDANCE FOR RADIATION THERAPY - The present invention pertains to an apparatus and method for delivering radiation to a human patient or other mammal. A scanning electron beam x-ray source is used and the detector can be a photon counting detector. The area of the detector is less than the area of field of view in the patient. Tomosynthesis can be used to generate images and images can be produced rapidly in real time. | 2012-01-19 |
20120014502 | ASYMMETRIC DE-POPULATED DETECTOR FOR COMPUTED TOMOGRAPHY AND METHOD OF MAKING SAME - A computed tomography (CT) detector array includes a central region substantially symmetric about a central axis thereof and includes a first plurality of x-ray detector cells configured to acquire CT data from a first number of detector rows during a scan, wherein the central axis is in a channel direction of the CT detector array and transverse to a slice direction of the CT detector array. A first wing is coupled to a first side of the central region, and a second wing is coupled to a second side of the central region opposite the first side. The first and second wings include respective second and third pluralities of x-ray detector cells and are each configured to acquire CT data from a number of detector rows that is less than the first number of detector rows. The CT detector array is asymmetric about the central axis of the central region. | 2012-01-19 |
20120014503 | Computed Tomography Scanning System and Method - A system for recording computed tomography image data of an object in an object area comprises an X-ray source and an X-ray detector arranged at either side of the object area, the X-ray source having a flying focal spot from which X-rays is emitted and the X-ray detector comprising pixels arranged in at least one row for recording images of the object. A device is provided for rotating the X-ray source and the X-ray detector with respect to the object around an axis of rotation, while the at least one row of pixels record images of the object. The X-ray source comprises means for moving the flying focal spot of the X-ray source from an original position and in a direction essentially opposite to the direction the X-ray source moves during the rotation, and the X-ray detector is provided with means for time delay summation such that pixel signal values of the at least one row of pixels are shifted one pixel and summed with pixel signal values obtained in a following recording of an image, wherein the shifting and summing of pixel signal values are performed repeatedly and the pixel signal values are shifted in a direction essentially opposite to the direction the X-ray detector moves during the rotation. | 2012-01-19 |
20120014504 | Apparatus and method for imaging breast - An apparatus and method for imaging a breast are provided. The apparatus includes an X-ray emission unit that emits an X-ray of a first energy spectrum and an X-ray of a second energy spectrum from above a first region of a breast and emits an X-ray of a third energy spectrum from above a second region of the breast different from the first region of the breast; an X-ray detection unit that generates a plurality of image frames related to the breast by detecting the X-rays emitted and passed through the breast; and an image generation unit that generates image data related to the breast by combining the plurality of image frames. | 2012-01-19 |
20120014505 | RADIATION IMAGE PROCESSING APPARATUS, RADIATION IMAGE PROCESSING METHOD, AND RADIATION IMAGE PROCESSING PROGRAM - An information obtaining means obtains imaging information related to states during imaging and positioning information related to positioning of breasts during imaging regarding a plurality of mammograms, which are targets of comparison. An image processing means administers image processes onto the plurality of mammograms based on predetermined image processing conditions. A judging means judges whether image processes are to be administered onto the plurality of mammograms according to the same image processing conditions, based on the imaging information and the positioning information. | 2012-01-19 |
20120014506 | STEREO X-RAY INSPECTION APPARATUS AND METHOD FOR FORMING THREE-DIMENSIONAL IMAGE THROUGH VOLUME RECONSTRUCTION OF IMAGE ACQUIRED FROM THE SAME - A stereo x-ray inspection apparatus and a method for forming a three-dimensional image through volume reconstruction of an image acquired from the same are disclosed. The apparatus includes one x-ray generator and two detectors to acquire two images. The x-ray generator and detectors are arranged in the form of a right-angled triangle, to easily achieve mathematical development and analysis. One of the detectors, which does not just oppose the x-ray generator, is movable and rotatable, to acquire images under the condition that only one detector is moved in accordance with the size of an object, and thus to simplify control operation for the apparatus, so that a more accurate image from an object moving at high speed is acquired. | 2012-01-19 |
20120014507 | Automatic Generation of Patient-Specific Radiation Therapy Planning Parameters - An apparatus and method for automatically generating radiation treatment planning parameters are disclosed. In accordance with the illustrative embodiment, a database is constructed that stores: (i) patient data and past treatment plans by expert human planners for these patients, and (ii) optimal treatment plans that are generated using multi-objective optimization and Pareto front search and that represent the best tradeoff opportunities of the patient case, and a predictive model (e.g., a neural network, a decision tree, a support vector machine [SVM], etc.) is then trained via a learning algorithm on a plurality of input/output mappings derived from the contents of the database. During training, the predictive model is trained to identify and infer patterns in the treatment plan data through a process of generalization. Once trained, the predictive model can then be used to automatically generate radiation treatment planning parameters for new patients. | 2012-01-19 |
20120014508 | ENHANCING ACCURACY OF FAST HIGH-RESOLUTION X-RAY DIFFRACTOMETRY - A method for analysis includes directing a converging beam of X-rays toward a surface of a sample and sensing the X-rays that are diffracted from the sample while resolving the sensed X-rays as a function of angle so as to generate a diffraction spectrum of the sample. The diffraction spectrum is corrected to compensate for a non-uniform property of the converging beam. | 2012-01-19 |
20120014509 | LIQUID METAL CONTAINMENT IN AN X-RAY TUBE - Liquid metal containment in an x-ray tube. In one example embodiment, an x-ray tube anode assembly includes a stationary shaft terminated by a head and an anode connected to an anode hub. The anode hub is at least partially surrounding the head of the stationary shaft. The anode hub defines a hub opening through which the stationary shaft extends. The anode hub is configured to contain a volume of a liquid metal and to rotate around the stationary shaft. The anode hub also defines a catch space within the anode hub that is configured to catch the liquid metal in order to contain the liquid metal within the hub regardless of the orientation of the x-ray tube anode assembly. | 2012-01-19 |
20120014510 | X-Ray Tube Anodes - An anode for an X-ray tube includes at least one thermally conductive anode segment in contact with a rigid support member and cooling means arranged to cool the anode. The anode may further include a plurality of anode segments aligned end to end, each in contact with the support member. | 2012-01-19 |
20120014511 | Method for Producing a Grating and Phase Contrast X-Ray System - A method is described for producing a grating, in particular an absorption grating, having a grating constant of less than 100 μm, by using a solution of superparamagnetic colloidal nanocrystal clusters (CNCs), a solvent liquid and a photocurable resin, with the following steps:—alignment of the CNCs in the solution by an external magnetic field,—exposure of the solution, so that the resin is cured and grating structures of an intended grating constant are formed, and—removal of the magnetic field. | 2012-01-19 |
20120014512 | RADIOGRAPHY APPARATUS AND CONTROL METHOD THEREOF - A radiography apparatus and a control method thereof are provided. With provision of a user centered input unit, automated horizontal and rotational movement of a detector may be performed, enabling automated full-body radiography. | 2012-01-19 |
20120014513 | MEDICAL BED APPARATUS - A medical bed apparatus of an embodiment includes: a tiltable top board on which to place an examinee; a photographic mechanism configured to radiograph the examinee; an operation unit which is provided to a lateral side of the top board, and through which at least one of the top board and the photographic mechanism is operated by an operator; and a horizontally-holding mechanism configured to hold the operation unit horizontally when the top board tilts. | 2012-01-19 |
20120014514 | METHOD OF INDICATING PRESENCE OF TRANSIENT NOISE IN A CALL AND APPARATUS THEREOF - A method and an apparatus for indicating presence of a transient noise in a call are provided. The method comprises the steps of determining activity at an endpoint of the call by monitoring presence of a signal input from the endpoint into the call and monitoring presence of a potential source of transient noise at the endpoint. Further, based on the activity determination and the monitoring of the presence of a potential source of transient noise, a signal representative of the presence of a transient noise in the call is sent. The present invention is advantageous in that it enables improvement of the quality of the call. | 2012-01-19 |
20120014515 | METHODS AND SYSTEMS FOR VISUAL VOICE CALLS - In an exemplary method, at least one telephony attribute associated with a voice call directed from a client communication subsystem to a voice network identifier is detected. Visual content that has been predefined as being associated with the at least one telephony attribute is identified. A request for the visual content is initiated in response to the detecting step. The visual content is received, in response to the initiating step, for display at the client communication subsystem. | 2012-01-19 |
20120014516 | DETERMINING AND DISPLAYING APPLICATION USAGE DATA IN A CONTACT CENTER ENVIRONMENT - Embodiments disclosed herein provide systems and methods for processing and displaying call state and application usage information in a contact center environment. In a particular embodiment, a method provides receiving application usage information and call state information and processing the application usage information and the call state information to determine an amount of time spent using each application of a plurality of applications by each agent of a plurality of agents during each call state of a plurality of call states. The method further provides generating a representation of the amount of time spent using at least one of the plurality of applications by at least one of the plurality of agents during at least one of the plurality of call states. | 2012-01-19 |
20120014517 | Methods and Systems for Controlling the Blocking of Telephone Calls - Computer-implemented systems and methods for controlling the blocking of telephone calls are disclosed. A person, for example, bothered by calls from a prison inmate may desire to block future call attempts from that inmate or even desire to block all calls from the confinement/correctional institution at which the inmate is housed. To reduce accidental and fraudulent call blocking, various techniques are used to verify that the party requesting the block is, in fact, the party in control of the telephone number requested to be blocked. Embodiments herein enable call blocking using systems that require little or no human interaction to process a block request, reduce or eliminate accidental blocks via a callback confirmation process, create a documentation trail via the use of a profile and PIN system used for the processing of a block, and/or reduce fraudulent blocks by parties other than those authorized to do so via CNAM (Caller ID) verification. | 2012-01-19 |
20120014518 | ENHANCED SERVICES PROVIDED USING COMMUNICATION REDIRECTION AND PROCESSING - Processing a communication is disclosed. A first request to establish communication is received at a redirection node from a requesting communication participant. A destination communication participant associated with the request is determined. A communication session in which the requesting communication participant, the redirection node, and the destination communication participant are participants at the same time is established, including sending from the redirection node to an equipment associated with the destination communication participant a second request to establish communication between the redirection node and the equipment associated with the destination communication participant. A communication session processing feature not provided with respect to the communication session by a telecommunication service provider associated with a service provider network used to establish and provide the communication session is made available to at least one of the requesting communication participant and the destination communication participant. | 2012-01-19 |
20120014519 | System and Method for Generating Forecasts and Analysis of Contact Center Behavior for Planning Purposes - A method of predicting expected performance of a processing center system is accessed. The method includes receiving performance information from a performance monitoring system associated with the processing center system. A computer model of the processing center system is developed based on the performance information. The method further includes generating predictions based on the computer model, and analyzing the predictions to generate performance scenarios for the processing center system. | 2012-01-19 |
20120014520 | BIOMETRIC ENCRYPTION AND KEY GENERATION - A system, method and program product for generating a private key. A system is disclosed that includes a signal acquisition system for obtaining biometric input from a user and encoding the biometric input into an acquired biometric; a recognition system for determining an identity based on the acquired biometric and outputting an absolute biometric associated with the identity; an input device for accepting a knowledge input from the user; and a key generator that generates a private key based on the knowledge input and the absolute biometric. | 2012-01-19 |
20120014521 | MOBILE PHONE AIDED OPERATIONS SYSTEM AND METHOD - The present system and method uses multiple digital devices with possibly different users operating in concert, for performing authentication and other cryptographic operations. The multiple digital devices include, for example, a mobile device such as a cellular phone, as a central building block. | 2012-01-19 |
20120014522 | METHOD AND DEVICE FOR RECEPTION OF CONTROL WORDS, AND DEVICE FOR TRANSMISSION THEREOF - Delivery of conditional access data to a receiver that is able to connect to a plurality of scrambled programs. Conditional access for a current channel is handled using standard ECMs delivered with the channel. In parallel, the receiver retrieves an ECM for a separate stream comprising control words for every channel. The control word of this ECM is used to descramble the separate stream to access the control words for every channel. In a preferred embodiment, these control words are super-encrypted using channel keys and the receiver is only able to obtain channel keys for channels for which it has access rights. In case the control words are super-encrypted, they are decrypted. Upon channel change, the relevant retrieved control word is used to descramble the new channel. Also provided is a receiver device and a transmitter device. According to a variant, the control words received in the separate stream is treated only upon a change of channel. The invention enables a reduction or removal of the CA delay when switching between channels. | 2012-01-19 |
20120014523 | Key Validation Scheme - A system and method for validating digital information transmitted by one correspondent to another in a data communication system. The method comprising the steps of generating a public key in accordance with a predetermined, generating a public key in accordance with a predetermined cryptographic scheme having predetermined arithmetic properties and system parameters. The verifying said public key conforms to said arithmetic properties of said scheme, transmitting said verified public key to a recipient. | 2012-01-19 |
20120014524 | Distributed bass - Low frequencies in an audio source are extracted and reintroduced into the remaining audio channels and a consequence of one possible setting of the invention is that the low frequencies are shared evenly across the two or more speaker thus avoiding the use of a special low frequency speaker known as a sub woofer. A further outcome of the use of the invention is the substantially even distribution of LFE audio within a listening volume and that in some instances the actual and possibly the perceived total sound pressure level of the LFE audio is greater from multiple distributed speakers than that of a single sub woofer speaker. Low frequency audio provided to multiple speakers, as proposed in this invention, can work within room boundaries to provide more effective listening positions, better sound quality and low frequency reception having dramatically reduced response ripple, i.e., dips will not be as deep, and peaks not as high. Low frequency equalisation and magnitude dependant variable frequency equalisation is used in conjunction with signal distribution and signal summing before the signal reaches one or more speakers while eliminating the need for a sub woofer speaker. | 2012-01-19 |
20120014525 | Method and apparatus for simultaneously controlling near sound field and far sound field - An apparatus and method for forming a Personal Sound Zone (PSZ) at a location of a listener are provided. An apparatus for simultaneously controlling a near sound field and a far sound field may classify the near sound field and the far sound field based on a distance between an array speaker and a listener, and may control the near sound field and the far sound field and thus, it is possible to perform focusing even when the listener is located in adjacent to the array speaker. Additionally, the apparatus may generate a directive sound source using the array speaker, and at the same time, may reduce a sound pressure in a far field, thereby reducing a sound source spreading to the far field while focusing is performed at the location of the listener. | 2012-01-19 |
20120014526 | Method for Generating a Downward-Compatible Sound Format - A method of generating an audio output signal according to a downward compatible sound format, the method including: generating a sum signal by combining a first input channel signal with a second input channel signal; and dynamically correcting the sum signal using samples of the first and second input channel signals from overlapping time windows. | 2012-01-19 |
20120014527 | SOUND SYSTEM - Methods and systems for processing audio data, such as spatial audio data, in which one or more sound characteristics of a given component of a spatial audio signal are modified in dependence on a relationship between a direction characteristic of the given component and a defined range of direction characteristics; this enhances the listening experience of the listener. A spatial audio in a format using a spherical harmonic representation of sound components is decoded by performing a transform on the spherical harmonic representation, in which the transform is based on a predefined speaker layout and a predefined rule, the predefined rule indicating a speaker gain of each speaker arranged according to the predefined layout, when reproducing sound incident form a given direction; this provides an alternative to existing method of decoding spatial audio streams, which focus on soundfield reconstruction. A plurality of matrix transforms is combined into a combined transform, and the combined transform is performed on an audio signal; this saves processing resources of the audio system being used. | 2012-01-19 |
20120014528 | SYSTEMS AND METHODS FOR AUDIO PROCESSING - Systems and methods for audio signal processing are disclosed, where a discrete number of simple digital filters are generated for particular portions of an audio frequency range. Studies have shown that certain frequency ranges are particularly important for human ears' location-discriminating capability, while other ranges are generally ignored. Head-Related Transfer Functions (HRTFs) are examples response functions that characterize how ears perceive sound positioned at different locations. By selecting one or more “location-critical” portions of such response functions, one can construct simple filters that can be used to simulate hearing where location-discriminating capability is substantially maintained. Because the filters can be simple, they can be implemented in devices having limited computing power and resources to provide location-discrimination responses that form the basis for many desirable audio effects. | 2012-01-19 |
20120014529 | Electro-Acoustic Transducer Tuning and Data Storage - A device into which an electro-acoustic transducer is incorporated has at least two audio signal conductors through which the device may be coupled to another device to convey analog audio signals representing sounds at a time when the other device places a relatively low DC bias voltage across the at least two audio signal conductors, and to be operated as either a digital serial bus to exchange pieces of digitally-encoded data concerning the electro-acoustic transducer or as a trigger to cause the electro-acoustic transducer to be bypassed to enable another electro-acoustic transducer to be tested at a time when the other device places a relatively high DC bias voltage across the at least two audio signal conductors. | 2012-01-19 |
20120014530 | MULTI-MODE AUDIO DEVICE INTERFACING - A headset having a connector compliant with a specification for a first digital serial bus incorporates a separator circuit that monitors the voltage level of one conductor of that connector to distinguish between a first digital interfacing mode in which the conductors of that connector are operated in a manner supporting the first digital serial bus and a second digital interfacing mode in which the conductors of that connector are operated in a manner in supporting a second digital serial bus, and further, the monitoring of the voltage level of the one conductor may also be employed to distinguish between both the first and second digital interfacing mode and either a third digital interfacing mode or an analog interfacing mode. | 2012-01-19 |
20120014531 | Digital Data Transfer Via Audio Signal Conductors - An electro-acoustic transducer or a device into which an electro-acoustic transducer is incorporated has at least two audio signal conductors through which the electro-acoustic transducer or device may be coupled to another device to convey analog audio signals representing sounds at a time when the other device places a relatively low DC bias voltage across the at least two audio signal conductors, and to be operated as a digital serial bus to exchange pieces of digitally-encoded data concerning the electro-acoustic transducer at a time when the other device places a relatively high DC bias voltage across the at least two audio signal conductors. | 2012-01-19 |