17th week of 2009 patent applcation highlights part 29 |
Patent application number | Title | Published |
20090103359 | Apparatus and method of multi-bit programming - Multi-bit programming apparatuses and/or methods are provided. A multi-bit programming apparatus may comprise: a multi-bit cell array that includes a first multi-bit cell and a second multi-bit cell; a programming unit for programming first data in the first multi-bit cell, and programming second data in the second multi-bit cell; and a verification unit for verifying whether the first data is programmed in the first multi-bit cell using a first verification voltage, and verifying whether the second data is programmed in the second multi-bit cell using a second verification voltage. The multi-bit programming apparatus may generate better threshold voltage distributions in a multi-bit cell memory. | 2009-04-23 |
20090103360 | Multi-Bit Flash Memory Device and Program and Read Methods Thereof - The flash memory device of the present invention is configured to program a plurality of bits per unit cell, wherein a program condition of a selected bit is set according to whether a program for the most previous bit to the selected bit for programming is skipped or not skipped. As a result, an accurate programming and reading operation is possible even in case a program for a middle bit is skipped. | 2009-04-23 |
20090103361 | LEVEL VERIFICATION AND ADJUSTMENT FOR MULTI-LEVEL CELL (MLC) NON-VOLATILE MEMORY (NVM) - Non-Volatile Memory (NVM) cells are connected in inverter configurations. The NVM inverter's Voltage Transfer Characteristics (VTC) is used to verify and adjust threshold voltage levels of a Multi-Level Cell (MLC) in an NVM. In one embodiment, the NVM cell is fast programmed to a specific threshold voltage level. The cell threshold level is then verified by applying a ‘gate voltage corresponding to the selected threshold voltage to the NVM inverter. The output voltage of the NVM inverter in response to the applied level gate voltage is detected. When the output voltage of the NVM inverter is out of a predefined output voltage window for the selected threshold voltage level, a fine-tuning programming sequence is applied to the NVM cell until the threshold voltage of the NVM cell is inside the correspondent threshold voltage window. This verification and adjustment scheme for a MLC NVM allows the threshold voltage of the multi-level NVM cells for any specific level to be controlled to a desired accuracy. | 2009-04-23 |
20090103362 | SYSTEM AND METHOD FOR SETTING ACCESS AND MODIFICATION FOR SYNCHRONOUS SERIAL INTERFACE NAND - The invention includes a system and method of modifying a setting of a NAND flash memory device using serial peripheral interface (SPI) communication from a master to the NAND flash memory device. One embodiment generally includes sending an enable signal to a first memory circuit input, sending a clock signal to a second memory circuit input, sending a command signal synchronized to the clock signal to a third memory circuit input, sending a memory register address signal synchronized to the clock signal to the third memory circuit input, and sending a setting signal synchronized to the clock signal to the third memory circuit input. | 2009-04-23 |
20090103363 | APPARATUS AND ASSOCIATED METHOD FOR MAKING A VIRTUAL GROUND ARRAY STRUCTURE THAT USES INVERSION BIT LINES - A virtual ground array structure uses inversion bit lines in order to eliminate the need for implanted bit lines. As a result, the cell size can be reduced, which can provide greater densities and smaller packaging. | 2009-04-23 |
20090103364 | SERIAL INTERFACE NAND - Embodiments are provided that include operating a NAND memory device via an SPI interface. One such method includes cache loading a NAND memory device including loading data into a cache of the NAND memory device, writing data from the cache of the NAND memory device to an address of a memory array of the NAND memory device, and polling to determine the status of the data being written. Further one such method includes caching of data in a NAND memory device via an SPI interface comprising loading first data to a cache of the NAND memory device, writing the first data to a first address of a NAND memory array of the NAND memory device, polling the status of the cache, if polling indicates that the cache is ready, then loading a portion of the cache with second data, polling the status of the cache and the NAND memory device, and if polling indicates that the cache is ready and the device is ready, writing the second data to a second address of the NAND memory array of the NAND memory device. | 2009-04-23 |
20090103365 | Sensing of memory cells in NAND flash - An analog voltage NAND architecture non-volatile memory data read/verify process and circuits is described that senses analog voltages in non-volatile cells utilizing source follower voltage sensing. In a source follower sensing or read operation the programmed threshold voltage of a cell in a NAND string of a NAND architecture Flash memory array is read by applying an elevated voltage to the source line, an elevated pass voltage (Vpass) is placed on the gates of the unselected cells of the string to place them in a pass through mode of operation, and a read gate voltage (Vg) is applied to the gate of the selected cell. The selected memory cell operates as a source follower to set a voltage on the coupled bit line at the read gate voltage minus the threshold voltage of the cell (Vg−Vt), allowing the voltage of the cell to be directly sensed or sampled. | 2009-04-23 |
20090103366 | Non-volatile memory device - A non-volatile memory device may include at least one string, at least one bit line corresponding to the at least one string, and/or a sensing transistor. The at least one string may include a plurality of memory cell transistors connected in series. The sensing transistor may include a gate configured to sense a voltage of the corresponding bit line. A threshold voltage of the sensing transistor may be higher than a voltage obtained by subtracting a given voltage from a voltage applied to read the corresponding bit line connected to a memory cell transistor to be read of the plurality of memory cell transistors. | 2009-04-23 |
20090103367 | ONE-TRANSISTOR CELL SEMICONDUCTOR ON INSULATOR RANDOM ACCESS MEMORY - Silicon-oxide-nitride-oxide-silicon SONOS-type devices (or BE-SONOS) fabricated in Silicon-On-Insulator (SOI) technology for nonvolatile implementations. An ultra-thin tunnel oxide can be implemented providing for very fast program/erase operations, supported by refresh operations as used in classical DRAM technology. The memory arrays are arranged in divided bit line architectures. A gate injection, DRAM cell is described with no tunnel oxide. | 2009-04-23 |
20090103368 | SEMICONDUCTOR MEMORY DEVICE - A semiconductor memory device includes a memory cell array and a sense amp circuit. The memory cell array includes bit lines connected to memory cells operative to store first logic data and second logic data smaller in cell current than the first logic. The sense amp circuit has a clamp transistor operative to clamp a bit line voltage. The sense amp circuit is operative to detect data in a selected memory cell via the clamp transistor and the bit line. The sense amp circuit is operative to read data from the selected memory cell in at least the two of first and second read cycles while a control voltage is applied to a gate of the clamp transistor. Different control voltages are applied to the gate of the clamp transistor in the first and second read cycles. | 2009-04-23 |
20090103369 | Non-Volatile Memory and Method with Shared Processing for an Aggregate of Read/Write Circuits - A non-volatile memory device capable of reading and writing a large number of memory cells with multiple read/write circuits in parallel has an architecture that reduces redundancy in the multiple read/write circuits to a minimum. The multiple read/write circuits are organized into a bank of similar stacks of components. Redundant circuits such as a processor for processing data among stacks each associated with multiple memory cells are factored out. The processor is implemented with an input logic, a latch and an output logic. The input logic can transform the data received from either the sense amplifier or the data latches. The output logic further processes the transformed data to send to either the sense amplifier or the data latches or to a controller. This provides an infrastructure with maximum versatility and a minimum of components for sophisticated processing of the data sensed and the data to be input or output. | 2009-04-23 |
20090103370 | EFFICIENT ERASE ALGORITHM FOR SONOS-TYPE NAND FLASH - A method for operating a dielectric charge trapping memory cell as described herein includes applying an initial voltage from the gate to the substrate of the memory cell for a predetermined period of time to reduce the threshold voltage of the memory cell. The method includes applying a sequence of voltages from the gate to the substrate of the memory cell to further reduce the threshold voltage of the memory cell, wherein a subsequent voltage in the sequence of voltages has a lower magnitude from the gate to the substrate than that of a preceding voltage in the sequence of voltages. | 2009-04-23 |
20090103371 | MEMORY CELL OPERATION - Embodiments of the present disclosure provide methods, devices, modules, and systems for programming memory cells. One method includes determining a quantity of erase pulses used to place a group of memory cells of the array in an erased state, and adjusting at least one operating parameter associated with programming the group of memory cells at least partially based on the determined quantity of erase pulses. | 2009-04-23 |
20090103372 | HIGH PERFORMANCE HIGH CAPACITY MEMORY SYSTEMS - The present invention provides memory system architectures developed to increase the capacity of memory systems. Typically applications including the main memory of computers. Memory systems of the present invention can achieve capacities larger than prior art systems by one or two orders of magnitudes without significant degradation in performance while using system interfaces that are compatible with existing memory systems with no or minimal modifications. | 2009-04-23 |
20090103373 | HIGH PERFORMANCE HIGH CAPACITY MEMORY SYSTEMS - The present invention provides memory system architectures developed to increase the capacity of memory systems. Typically applications including the main memory of computers. Memory systems of the present invention can achieve capacities larger than prior art systems by one or two orders of magnitudes without significant degradation in performance while using system interfaces that are compatible with existing memory systems with no or minimal modifications. | 2009-04-23 |
20090103374 | MEMORY MODULES AND MEMORY SYSTEMS HAVING THE SAME - A memory module includes a plurality of data ports configured to receive/transmit associated data and a plurality of memory devices. The plurality of memory devices include a first set of the memory devices in at least one rank, each memory device of the first set being coupled to each of the associated data ports, and a second set of the memory devices in at least one other rank, each memory device of the second set being configured to receive/transmit the associated data for the memory device through at least each associated memory device of the first set. | 2009-04-23 |
20090103375 | SRAM Cell Using Separate Read and Write Circuitry - The present invention provides circuitry for writing to and reading from an SRAM cell core ( | 2009-04-23 |
20090103376 | SEMICONDUCTOR MEMORY DEVICE - A semiconductor memory device related to an embodiment of the present invention includes a memory cell array including a plurality of memory cells, a first interface part having a predetermined number of pins, a second interface part having a smaller number of the pins than the first interface part, a data pattern latch part which stores an externally input data pattern, a comparison part which compares the data pattern input or preliminarily set from the data pattern latch part with data which is read from the memory cell array, and a comparison result output part arranged in the second interface part, and which outputs a comparison result of the comparison part. | 2009-04-23 |
20090103377 | ACCESS UNIT FOR A STATIC RANDOM ACCESS MEMORY - An access unit for a static random access memory (SRAM) is provided. The access unit comprises two inverters. Two different variable voltages are supplied to the two inverters via bitlines to cause an imbalance in the current strengths between the two inverters so that data can be written on the SRAM. | 2009-04-23 |
20090103378 | SINGLE-STROBE OPERATION OF MEMORY DEVICES - An arrangement of memory devices and a controller is based on an interface with a reduced pin count relative to a known memory device and controller arrangement. Facilitating the reduced pin count interface the reduction of multiple strobe signal to a single strobe signal. In addition, a packet header transmitted on the data bus followed by a payload, includes an encoded indication of the type of the payload. Aspects of the present application relate to providing a traditional memory device with external logic devices, where the logic devices handle the single strobe and the packet header, thereby permitting single strobe operation. | 2009-04-23 |
20090103379 | INTEGRATED CIRCUIT MEMORY HAVING DYNAMICALLY ADJUSTABLE READ MARGIN AND METHOD THEREFOR - A method for dynamically controlling sense amplifier differential margin of a memory during operation, in an integrated circuit, comprising a plurality of addressable units, is provided. The method includes setting the sense amplifier differential margin corresponding to the plurality of addressable units to a first value. The method further includes if a read data error occurs when data is read from a set of the plurality of addressable units, then setting the sense amplifier differential margin corresponding to the plurality of addressable units to a second value, wherein the second value is greater than the first value. | 2009-04-23 |
20090103380 | SYSTEM AND METHOD FOR DATA READ OF A SYNCHRONOUS SERIAL INTERFACE NAND - A method and system is disclosed for operating a NAND memory device. The NAND memory device is operated by transmitting serial peripheral interface signals from a host to a NAND memory device, whereby the signals are communicated to a NAND memory in the NAND memory device without modifying the signals into a standard NAND memory format. Similarly, a method and system is disclosed for receiving signals from the NAND memory device without modifying the signals from a standard NAND format into a serial format. The system also incorporates error detection and correction techniques to detect and correct errors in data stored in the NAND memory device. | 2009-04-23 |
20090103381 | ASYNCHRONOUS SENSE AMPLIFIER FOR READ ONLY MEMORY - The asynchronous sense amplifier for a ROM comprises a current-mirror circuit, a first negative feedback inverter, a second negative feedback inverter, a first transistor group, a second transistor group and a feedback transistor. The feedback transistor connects the junction of the first transistor group and the first set of the current-mirror circuit and/or the junction of the second transistor group and the second set of the current-mirror circuit to ground, where the feedback transistor is controlled by the output of the first negative feedback inverter and/or the second negative feedback inverter, and the feedback transistor is smaller than one transistor of the second transistor group. | 2009-04-23 |
20090103382 | Gated Diode Sense Amplifiers - A sense amplifier for use in sensing a signal in an integrated circuit comprises an amplifier portion and an output portion. The amplifier portion comprises a gated diode having a gate terminal. The output portion comprises an output transistor in signal communication with the gate terminal of the gated diode and having a source terminal. A variable source voltage acts on the source terminal of the output transistor when the sense amplifier is in operation. The variable source voltage is temporarily altered when the sense amplifier is actively sensing the signal in the integrated circuit. | 2009-04-23 |
20090103383 | DYNAMIC RANDOM ACCESS MEMORY WITH FULLY INDEPENDENT PARTIAL ARRAY REFRESH FUNCTION - A dynamic random access memory device includes a plurality of memory subblocks. Each subblock has a plurality of wordlines whereto a plurality of data store cells are connected. Partial array self-refresh (PASR) configuration settings are independently made. In accordance with the PASR settings, the memory subblocks are addressed for refreshing. The PASR settings are made by a memory controller. Any kind of combinations of subblock addresses may be selected. Thus, the memory subblocks are fully independently refreshed. User selectable memory arrays for data retention provide effective memory control programming especially for low power mobile application. | 2009-04-23 |
20090103384 | APPARATUS AND METHOD FOR SELF-REFRESHING DYNAMIC RANDOM ACCESS MEMORY CELLS - A dynamic random access memory (DRAM) having DRAM cells coupled to wordlines and bitlines. In a self-refresh mode, the cells coupled with the even numbered rows retain main data previously stored therein and the assistant data, which is logically opposite to the main data, is overwritten into the cells coupled with the wordlines of the odd numbered rows. When the DRAM enters the self-refresh mode, a starting refresh address for the self-refresh mode is detected. If the detected starting refresh address does not match with a predetermined correct address set for the self-refresh operation mode, a dummy refresh cycle will be established in an entry-burst self-refresh period. During the dummy refresh cycle, a dummy refresh command is added to increment an internal row address counter that provides row addresses for self-refreshing the cells of the selected wordlines within the cell array. | 2009-04-23 |
20090103385 | MOTHERBOARD FOR SUPPORTING DIFFERENT TYPES OF MEMORIES - An exemplary motherboard includes a driving module, at least two first slots arranged for mounting two first type of memories, at least two second slots arranged for mounting two second type of memories, and a voltage regulator. The driving module is electronically connected to the at least two first slots, the at least two second slots, and the voltage regulator in turn via a channel. The first type of memories and the second type of memories are alternatively mounted on the motherboard, the voltage regulator detects which type memory is currently mounted on the motherboard and outputs voltages suitable for the type of memory mounted on the motherboard accordingly. | 2009-04-23 |
20090103386 | SELECTIVELY-POWERED MEMORIES - Embodiments provide methods, apparatuses and systems including a plurality of memory cells configured to store bit values while being powered at a power-saving voltage lower than a normal-operation voltage during operation of a host apparatus, and power circuitry coupled to the plurality of memory cells. The power circuitry is configured to selectively power a first subset of the plurality of memory cells at the normal-operation voltage during operation of the host apparatus while concurrently powering a second subset of the plurality of memory cells at the power-saving voltage. The first and second subsets being different subsets of the memory cells. | 2009-04-23 |
20090103387 | HIGH PERFORMANCE HIGH CAPACITY MEMORY SYSTEMS - The present invention provides memory system architectures developed to increase the capacity of memory systems. Typically applications including the main memory of computers. Memory systems of the present invention can achieve capacities larger than prior art systems by one or two orders of magnitudes without significant degradation in performance while using system interfaces that are compatible with existing memory systems with no or minimal modifications. | 2009-04-23 |
20090103388 | HISTOGRAM GENERATION WITH BANKS FOR IMPROVED MEMORY ACCESS PERFORMANCE - Dividing memory used for storing histogram data into multiple banks is disclosed to allow for phased RMW cycles. Although the same address lines are provided to each bank, address control logic ensures that each successive RMW cycle is handled by a different bank, so that another RMW cycle can be started in one bank while the previous RMW cycle is still being performed in another bank. By staggering or phasing the starts of the RMW cycles in a wraparound fashion, each histogram bin is spread out over multiple banks, but testing can proceed faster than if only a single bank was used. After the histogram data has been captured, the areas of memory in each bank associated with a particular bin can be added together to compute the total count for that bin. | 2009-04-23 |
20090103389 | Semiconductor memory device and method of providing product families of the same - Disclosed is a semiconductor memory device including a plurality of banks, a plurality of data input/output terminals, control signal terminals, address signal terminals, and at least one or a plurality of virtual chips, each of which has the banks grouped together, thereby being operable as one independent chip. Each of the data input/output terminals are allocated in dedicated manner to the one virtual chip or one of the plurality of virtual chips. The control signal terminals and the address signal terminals are shared among the one or the plurality of virtual chips. | 2009-04-23 |
20090103390 | Three Dimensional Twisted Bitline Architecture for Multi-port Memory - Embodiments of the present invention provide a memory array of dual part cells and design structure thereof. The memory array has a pair of twisted write bit lines and a pair of twisted read bit lines for each column. The twist is made by alternating the vertical position of each bit line pair in each section of a column, with the result of generating common mode nose and of reducing differential mode noise. | 2009-04-23 |
20090103391 | Memory clock generator having multiple clock modes - An integrated circuit | 2009-04-23 |
20090103392 | System and Process for Introducing a Rigid Lance into a Concrete Mixing Truck Using an Articulated Arm - A present invention provides for a system ( | 2009-04-23 |
20090103393 | Static mixer having a vane pair for the generation of a flow swirl in the direction of a passage flow - The static mixer ( | 2009-04-23 |
20090103394 | TESTING A SENSOR TO PRODUCE A FILTER FOR NOISE ATTENUATION - To test a seismic sensor, an output of the seismic sensor in response to a test signal applied by a signal generator is measured. According to a first function that corresponds to a reference response of the seismic sensor and according to a second function that corresponds to a signal containing noise in an environment of the seismic sensor, a filter is created to perform attenuation of the noise. The filter is applied to attenuate noise during testing of the seismic sensor. | 2009-04-23 |
20090103395 | Method for Wavelet Denoising of Controlled Source Electromagnetic Survey Data - Method for denoising a receiver signal from a controlled source electromagnetic survey. A discrete wavelet transform is performed on the signal, and the resulting detail coefficients are truncated using a selected threshold value, which may be zero. Further levels of decomposition may be performed on the approximation coefficients from the preceding level. After the final level of decomposition, a denoised signal is restructured by performing the inverse wavelet transformation on the last set of approximation coefficients combined with the thresholded detail coefficients accumulated from all levels of decomposition. | 2009-04-23 |
20090103396 | Information Input Apparatus Using Ultrasonic Waves and Position Recognition Method Thereof - The present invention relates to an input apparatus, and more particularly, to an information input apparatus and position recognition apparatus using an ultrasonic wave. The information input apparatus includes an input unit for generating an ultrasonic signal and a receiver for receiving the ultrasonic signal generated in the input unit, wherein the input unit includes ultrasonic generator for generating an ultrasonic signal according to a movement of the input unit, and a controller for generating a control signal to enable the ultrasonic generator to generate the ultrasonic waves, the receiver includes an ultrasonic receiver for receiving the ultrasonic signal generated in the ultrasonic generator, and a signal processor for performing a signal processing in a phase sensitive cross-correlation scheme in order to track the position of the input unit using the ultrasonic signal received in the ultrasonic receiver. | 2009-04-23 |
20090103397 | COMPREHENSIVE TIME DETERMINING SYSTEM - A comprehensive time determining system includes a list of geographical locations located on a periphery thereof. The base section further includes a plurality of time zones associated with the geographical locations. The time zones are presented on a time strip on the base section. The list of geographical locations on the base section includes locations using standard time only. A first movable section includes a northern hemisphere portion and a southern hemisphere portion. The northern hemisphere portion and the southern hemisphere portion are each independently movable relative to the base section. The northern hemisphere portion includes a list of northern hemisphere geographical locations. The southern hemisphere portion includes a list of southern hemisphere geographical locations. The lists on the first movable sections contains locations using dual time, the northern hemisphere portion and the southern hemisphere portion being movable to select a desired position depending on the season. The first movable section is so arranged and constructed to allow the user to be able to view the time strip located on the base section. A second movable section includes a rotatable dial, the dial being rotatable relative to the base section and to the first movable section. The dial includes evenly spaced markers positioned about a periphery thereof representing the hours in a day. During use, an operator selects a location on either the base section or the first movable section and adjusts the first movable section depending on the season, and sets the dial so that a reference time on the dial element is set to a reference time on the time strip. The user can then use the evenly spaced markers on the dial to determine time at any selected geographical location on the base section or first movable section. | 2009-04-23 |
20090103398 | CHRONOGRAPH WATCH - The present invention concerns a chronograph watch fitted with a going train including:
| 2009-04-23 |
20090103399 | BASE MODULE FOR TIMEPIECE, IN PARTICULAR WRISTWATCH - The invention concerns a base module comprising a barrel device, a display device, and a power reserve indicator, all the components of the module being placed vertically relative to the flanks of the case, and the adjusting member being arranged visibly and directly accessible on the flank of the case. | 2009-04-23 |
20090103400 | CASE FOR WRISTWATCH - This watch case comprises a closed enclosure to take a watch movement, having a middle traversed by at least one control stem, to which middle are fixed both a base and a glass. This closed enclosure is housed in an outer jacket having an upper element with an opening for the passage of the glass, a base and a side wall with means of connection to the strap and with at least one passage for said control stem, while elastic suspension means are arranged between the base of the jacket and said enclosure in order to exert, on a bearing surface of the middle at the periphery of said glass, a pressure that will tend to keep this bearing surface of the middle pressed permanently against the edge of said opening for the passage of the glass. | 2009-04-23 |
20090103401 | MAGNETIC RECORDING MEDIUM, PRODUCTION METHOD FOR THE SAME, AND RECORDING/REPRODUCING METHOD FOR MAGNETIC MEDIUM - A magnetic recording medium with excellent signal characteristics is provided in which the stability of recorded information is ensured even when recording is performed in high density or even when magnetic recording and reproduction are performed while the temperature of a recording film is increased by irradiation with light. The present invention provides a magneto-optical recording medium comprising at least a memory layer on a disk substrate, in which the memory layer is separated into magnetic grains to form magnetically isolated recorded domains, or in which a fine structure is formed by an aggregate of mutually isolated magnetic grains in the memory layer, and the memory layer has a large specific resistance. A production method thereof is also provided. | 2009-04-23 |
20090103402 | METHOD AND APPARATUS FOR GENERATING ABSOLUTE TIME IN PREGROOVE DATA - An apparatus and a method for generating an ATIP data are provided. The apparatus, based on a wobble signal generated by reading a re-writable compact disc, generates an ATIP data; the apparatus includes: a frequency demodulator for demodulating the wobble signal to generate an original ATIP data signal; an ATIP clock generating circuit for generating an ATIP clock signal based on the wobble signal; and a data generating circuit, coupled to the frequency demodulator and the ATIP clock generating circuit, for generating the ATIP data based on the number of the original ATIP data signal at a first logic level during one period of the ATIP clock signal. This apparatus uses the number of the original ATIP data signal at a first logic level during one period of the ATIP clock signal and the bi-phase rule to precisely generate the ATIP data. | 2009-04-23 |
20090103403 | OPTICAL DISC APPARATUS AND LENS SHIFT CORRECTION METHOD - An optical disc apparatus, which executes tracking control for an objective lens by generating a push-pull signal, includes a determination unit which detects symmetry of the push-pull signal and determines whether balance of signal characteristics of the push-pull signal is good, a lens shift amount detection unit which detects, in a case where the determination unit determines that the balance of the signal characteristics of the push-pull signal is not good, a lens shift amount of the objective lens in such a manner as to improve the balance of the signal characteristics, a memory unit which stores the lens shift amount that is detected by the lens shift amount detection unit, and an addition unit which constantly applies the lens shift amount, which is stored in the memory unit, to a tracking actuator which shifts the objective lens. | 2009-04-23 |
20090103404 | Optic disk drive power management method for computer system - Disclosed is an optic disk drive power management method for a computer system, which uses a keyboard controller, together with a system basic input/output system of the computer and a virtual optic-disk driver, to determine the status of the optic disk drive, including connection and removal of the optic disk drive, loading of a disk to the optic disk drive, and actuation of an eject button, and controls supply of power to the optic disk drive accordingly. Also, the system basic input/output system is employed to inform the virtual optic-disk driver to display an identifiable color (colored or gray) or figure representing the icon of the optic disk drive, thereby illustrating the status of the optic disk drive. | 2009-04-23 |
20090103405 | INFORMATION RECORDING/REPRODUCING DEVICE AND THE LIKE - An information recording/reproducing device which can record or reproduce the predetermined information quickly and properly is proposed. | 2009-04-23 |
20090103406 | Optical disc drive - There is provided an optical disc drive comprises an optical pick-up including a laser diode (LD) and a laser diode driver (LDD) for driving the laser diode, a digital signal processor (DSP) including a write strategy circuit and low voltage differential signaling (LVDS) drivers for transmitting a produced write strategy signal, a circuit board having the DSP mounted thereon and including a line for transmitting the write strategy signal, a transmission line connecting the circuit board and the LDD and transmitting a write strategy signal, and differential resistors connected between differential lines of outputs of the LVDS drivers. Especially, a resistor having a resistance value in a range of 80 to 500Ω is inserted between the differential lines of outputs of the LVDS driver inside the DSP. | 2009-04-23 |
20090103407 | Information Recording Medium, Information Recording Device And Method, And Computer Program For Controlling Recording - An information recording medium ( | 2009-04-23 |
20090103408 | Kind Identifying Apparatus, Kind Identifying Method, and Identifying Program - There is provided a type judgment device capable of rapidly and safely identifying the type of an optical disc while preventing unexpected information recording or information erase. An optical beam as parallel light is applied in a circular polarized state to an optical disc having recording tracks and the polarization characteristic in the reflected light is detected. According to the detected polarization characteristic, the type of the disc is judged in accordance with the interval of the adjacent recording tracks. | 2009-04-23 |
20090103409 | COMPENSATING GAIN OF AN OPTICAL RECORDING APPARATUS - The present invention relates to an optical recording apparatus capable of recording information on an optical record carrier. Radial tracking control is performed by the 3 spot differential push pull (PP) method. The optical recording apparatus has means for obtaining a first and second difference signal from detection signals of a reflection of a main light beam (C) and a first and a second sub light beam (A,B), and means for subtracting the second difference signal from the first difference signal so as to obtain a tracking error signal (TES). The second difference signal is adjusted by a gain factor (g) so as to compensate for a difference in intensity between the reflected light of the first and the second sub light beams during information writing. In particular, a solution may compensate for the difference in the reflections for the first and second sub light beam (A,B) so that a possible radial offset is avoided. | 2009-04-23 |
20090103410 | Information recording medium, method and apparatus for recording and reproducing information - An information recording medium includes a lead-in area and a data area for storing contents information. The lead-in area includes a first lead-in information area and a second lead-in information area. The first lead-in information area corresponds to a first playback mode. The second lead-in information area corresponds to a second playback mode different from the first playback mode. The first lead-in information area has a first depth and is designed for storing lead-in information related to the contents information stored in the data area. The second lead-in information area includes pre-pits having a second depth greater than the first depth. The pre-pits represent predetermined information, such as information of copyright protection, related to the contents information stored in the data area. | 2009-04-23 |
20090103411 | DECODE DEVICE, REPRODUCTION APPARATUS, AND METHOD FOR DECODING - A decoding apparatus includes a burst cutting area (BCA) signal interval measuring device which measures a signal interval of a BCA area and which outputs BCA signal interval information, a T converter which obtains T information from the BCA signal interval information, a sequencer which detects a space area based on a first threshold value and which outputs an output enable signal based on the T information and a detecting result, wherein the output enable signal shows that a signal is obtained from a data area of the BCA area, and the space area is a non-signal area of the BCA area, and a channel data converter which converts the T information into channel data based on the output enable signal from the sequencer. | 2009-04-23 |
20090103412 | RECORDING CONTROL APPARATUS, RECORDING AND REPRODUCTION APPARATUS, AND RECORDING CONTROL METHOD - A recording control apparatus includes a waveform rectification section for receiving a digital signal generated from an analog signal representing information reproduced from an information recording medium, and rectifying a waveform of the digital signal; a maximum likelihood decoding section for performing maximum likelihood decoding of the digital signal having the waveform thereof rectified, and generating a binary signal representing a result of the maximum likelihood decoding; a reliability calculation section for calculating a reliability of the result of the maximum likelihood decoding based on the digital signal having the waveform thereof rectified and the binary signal; and an adjusting section for adjusting a shape of a recording signal for recording the information on the information recording medium based on the calculated reliability. | 2009-04-23 |
20090103413 | WAVEFORM EQUALIZATION CONTROL DEVICE - A waveform equalization control device includes a waveform equalizer that has a filter provided with a plurality of taps, updates the tap coefficient of each of the plurality of taps in accordance with a tap coefficient signal inputted thereto, causes the plurality of taps to respectively receive a plurality of values sampled at different time points from an input signal, performs waveform equalization with respect to the input signal, and outputs the signal after the waveform equalization, an equalization target value generation unit for determining an equalization target value, an error estimation unit for obtaining the error between the equalization target value and the signal after the waveform equalization, and a coefficient update unit for determining an amount of updating the coefficient of each of the taps of the filter of the waveform equalizer based on the error signal and on the input value to each of the taps and outputting the amount of updating the tap coefficient as the tap coefficient signal. The equalization target value generation unit obtains sign signals each showing whether the signal after the waveform equalization has a positive value or a negative value for first to fifth time points and determines a value corresponding to a total sum which is a sum of respective results of multiplying the sign signals for the first to fifth time points by θ, β, α, β, and θ (where each of α, β, and θ is a predetermined real number) as the equalization target value. | 2009-04-23 |
20090103414 | COOLING IN HIGH-DENSITY STORAGE SYSTEMS - In one embodiment an enclosure for a high-density storage system, comprises a backplane to which a plurality of data storage devices may be coupled, a front panel opposite the backplane and defining a first airflow channel adjacent a front side of the data storage devices, a back panel opposite the front panel and comprising a second airflow channel adjacent the backplane, a floor panel and a top panel, a first side panel comprising an array of air flow inlets, a second side panel comprising at least one air flow outlet, and a fan assembly to expel air from the at least one air outlet. | 2009-04-23 |
20090103415 | OPTICAL RECORDING METHOD, OPTICAL RECORDING APPARATUS, OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING AND REPRODUCING METHOD - The present invention aims to provide an optical recording method etc. that provides higher efficiency of recording and reproducing and is uninfluenced by the mismatch of optical axes of plural laser lights induced from accident errors of optical recording and optical reproducing apparatuses when carrying out recording or reproducing, or focus control etc. by use of a laser light, high multiple-recording can be carried out, and layer construction of the recording medium itself is simple. | 2009-04-23 |
20090103416 | LAYOUT METHOD FOR MULTIPLEXED HOLOGRAMS - Methods are disclosed for determining the layout of cure sites/cure spots and/or stack positions on the recordable section of a holographic storage medium. Also disclosed are methods for carrying out pre-curing and stack writing routines for pre-curing, in an appropriate order, bookcases comprising such cure spots in the recordable section, and for writing stacks of holograms, in an appropriate order, to such bookcases after determining such layouts. | 2009-04-23 |
20090103417 | OPTICAL PICKUP DEVICE AND INFORMATION RECORDING/REPRODUCING APPARATUS - There are obtainable reliable and proper tracking correction and CTC even when fluctuations occur in an irradiation position of a sub-beam in a track at the time of performing tracking correction and CTC using three beams. Five beams (a main beam, sub-beams inA and inB, and sub-beams outA and outB) are generated. Reflection beams of the five beams are received, and a differential push pull signal DPPin corresponding to the sub-beams “in” as ± first-order beams and a differential push pull signal DPPout corresponding to the sub-beams “out” as ± second-order beams are generated. By assigning weights to the differential push pull signals DPPin and DPPout and computing the sum of the weighted signals, a tracking error signal Ste having an amplitude value which can perform tracking correction is generated. | 2009-04-23 |
20090103418 | OPTICAL DISK MEDIUM, INFORMATION RECORDING METHOD, AND OPTICAL DISK DRIVE - Provided are an optical disk drive and a disk format necessary for the optical disk, which are capable of eliminating or reducing a problem of reduction in an effective transfer rate attributable to track jumps caused at a certain interval when performing recording and reproduction of multiple tracks in parallel by using multiple beams, and thereby achieving a high transfer rate. A block constituting a recording unit is divided into sub-blocks, and the sub-blocks are arranged in a radial direction of a disk. Meanwhile, an optical disk drive includes a means for irradiating a disk with multiple light spots, a means for pulse modulating the spots by using the same frequency and different phases, and a means for receiving light from the spots reflected by the disk by using a single photodetector, and separating the reflected light into independent lines of signals in terms of a time domain. | 2009-04-23 |
20090103419 | Optical Pickup Device, Optical Information Recording and Reproducing Device and Design, Method of Optical Element - In order to provide an optical pickup device, an objective optical element and an optical information recording and reproducing device that can properly record and/or reproduce information with three different recording densities and that can be realized with a simplified structure and at low cost, the optical pickup device is comprised of an optical element, the construction of which is stacked with first, second and third basic structures to make different optical lengths. | 2009-04-23 |
20090103420 | OPTICAL PICKUP AND DISC DRIVE APPARATUS - An objective-lens driving device includes a fixed block fixed to a moving base, a movable block having a lens holder configured to hold objective lenses, support springs configured to connect the fixed block and the movable block to each other, a focusing magnetic circuit including a first focusing coil, a second focusing coil, a first focusing magnet, and a second focusing magnet, and a tracking magnetic circuit. The first focusing coil is attached to the lens holder such that a first thrust-generating portion and a second thrust-generating portion are spaced from each other in a tangential direction. The second focusing coil is attached to the lens holder such that an axial direction of the second focusing coil coincides with the tangential direction. The first focusing magnet and the second focusing magnet are arranged in the tangential direction with the movable block disposed therebetween. | 2009-04-23 |
20090103421 | Object Lens Actuator, Optical Pickup and Optical Disk Drive - The present invention provides an object lens actuator, an optical pickup, and an optical disk drive, which can increase the size of the object lens actuator driving a lens holder in the tangential tilt direction, and drive and control the lens holder with a small amount of drive current. | 2009-04-23 |
20090103422 | OPTICAL RECORDING HEAD DEVICE, OPTICAL RECORDING APPARATUS, AND RECORDING METHOD - According to one embodiment, an optical recording head device includes a light source which outputs such a relaxation oscillation optical pulse that a full width at half maximum of a single pulse is 820 ps or less, a driving unit for driving the light source, an objective lens which converges emission light from the light source on a recording layer of a recording medium, and captures reflective light which is reflected by the recording layer of the recording medium, a distribution unit, placed between the light source and the objective lens, for distributing incident light, and a photodetection unit for receiving via the distribution unit the reflective light which is reflected by the recording layer of the recording medium, wherein a resonator length of the light source is 6560 μm or less. | 2009-04-23 |
20090103423 | INFORMATION RECORDING MEDIUM HAVING SUBSTRATE WITH MICROSCOPIC PATTERN AND REPRODUCING APPARATUS THEREFOR - A recording medium includes a substrate having a microscopic pattern, which includes a shape of continuous substance of approximately parallel grooves formed with a convex shaped section and a concave shaped section alternating on a surface of the substrate. A recording layer is formed on the microscopic pattern and a light transmitting layer has a thickness of 0.05 mm to 0.12 mm formed on the recording layer. The microscopic pattern satisfies a relation of P≦λ/NA, wherein P is a pitch of the convex shaped section, λ is a wavelength of a reproducing light beam and NA is a numerical aperture of an objective lens. The microscopic pattern also includes modulated address information formed on both side walls of the convex shaped section viewed from the light transmitting layer as a wobble, both the side walls being parallel to each other, and furthermore wherein the address information is modulated by the phase-shift keying modulation system. A reproducing apparatus is particularly suited for the recording medium. | 2009-04-23 |
20090103424 | OPTICAL RECORD CARRIER, AS WELL AS A METHOD AND AN APPARATUS FOR RECORDING A DISC SHAPED OPTICAL RECORD CARRIER - An apparatus is described for recording an optical record carrier ( | 2009-04-23 |
20090103425 | OPTICAL RECORDING MEDIUM HAVING READ-ONLY STORAGE AREA AND WRITEABLE STORAGE AREA AND RECORDING/REPRODUCING APPARATUS AND METHOD THEREFOR - An optical recording medium having a read-only storage area and a writable storage area and a recording/reproducing apparatus and method therefor. The optical recording medium is a hybrid disc having both the read-only storage area, which is suitable for mass production of information having the same contents, and the writable storage area on which data can be recorded, updated or added at a user's option. The read-only storage area has a structure that is completely compatible with a digital versatile disc read only memory (DVD-ROM) specification, and the writable storage area is compatible with the recording/reproducing characteristics of a writable DVD specification so that an existing reproducing-only apparatus can read information from the read-only storage area, and data can be recorded in the writable storage area using an apparatus obtained by minimally changing an existing recording/reproducing apparatus while maintaining the physical recording characteristics of the existing recording/reproducing apparatus. | 2009-04-23 |
20090103426 | OPTICAL INFORMATION RECORDING MEDIUM BASED ON INTERFERENCE OF CONVERGING SPHERICAL WAVES - An improved light-readable information recording medium is provided that comprises an optical data storage structure having lands and pits, in which the depth of the pits is about: | 2009-04-23 |
20090103427 | CODE CHANNEL MANAGEMENT IN A WIRELESS COMMUNICATIONS SYSTEM - Systems and techniques are disclosed relating to communications. The systems and techniques involve dividing a plurality of subscriber stations into a plurality of groups, assigning a different plurality of orthogonal codes to each of the groups, the number of the orthogonal codes assigned to one of the groups being less than the number of subscriber stations in said one of the groups, encoding communications to one of the subscriber stations in said one of the groups at a data rate, and determining whether to spread at least a portion of communications to said to one of the subscriber stations with one of the orthogonal codes assigned to said one of the groups as a function of the data rate. | 2009-04-23 |
20090103428 | SYSTEM FOR GENERATING SPACE FREQUENCY BLOCK CODE RELAY SIGNAL AND METHOD THEREOF - A method and system for generating a space frequency block code relay signal includes a signal detection unit which detects a received signal by receiving a first and second source signals transmitted from a first and second source nodes, a relay signal generation unit which generates a relay signal cooperating with the first and second source signals using a space frequency block code (SFBC) scheme based on the received signal, and a signal transmitter which transmits the relay signal to a destination node. | 2009-04-23 |
20090103429 | Method and System for Remote Power Feeding of a DSL Communication Device - The invention relates to a method and system of remote power feeding of a DSL communication device. The system for performing the method comprises a central DSL system connectable to a plurality of DSL communication devices via a plurality of associated subscriber lines. A subscriber line provides a plurality of communication channels for signal transmission between the central DSL system and the DSL communication device. The method involves receiving a power failure indication signal from the at least one DSL communication device. Following the transmission of the power failure indication signal, one or more communication channels are selected from the plurality of communication channels for signal transmission over the subscriber line. Then, power is fed to the at least one DSL communication device in combination with signal transmission over said selected one or more communication channels of the subscriber line. | 2009-04-23 |
20090103430 | SYSTEM AND METHOD OF MANAGING FAILOVER NETWORK TRAFFIC - A system and method of managing failover network traffic is disclosed. In one form, a method of managing network traffic can include accessing a failover policy of a plurality of network interface controllers, and detecting a failover event of at least one of the plurality of network interface controllers. The method can also include identifying a first network traffic using the failover policy, and enabling communication of the first network traffic using a non-failed network interface controller of the plurality of network interface controllers. | 2009-04-23 |
20090103431 | Method of Estimating Restoration Capacity in a Network - A method for estimating restoration capacity for a communication network includes a specified number of restoration paths, which can be maximally diverse from each other. | 2009-04-23 |
20090103432 | NON-DISRUPTIVE DATA PATH UPGRADE USING TARGET MOBILITY - Described are computer-based methods and apparatuses, including computer program products, for non-disruptive data path modification using target mobility. A management server is in communication with a switching fabric. The switching fabric is in communication with a host and a data storage element. The management server creates a takeover target based on a primary target, where the primary target is part of a virtual data path between the host and the data storage. The switching fabric, through the direction of the server, modifies metadata associated with the virtual data path to expose the takeover target so that the takeover target becomes part of the virtual data path. The management server unexposes the primary target so that the primary target is no longer part of the virtual data path. The delay between exposing the takeover target and unexposing the primary target is sufficiently small to prevent an error condition from occurring at the host. | 2009-04-23 |
20090103433 | TELECOMMUNICATION AND MULTIMEDIA MANAGEMENT METHOD AND APPARATUS - A method for reliably transferring media over a network from a sending node to a receiving node. The method includes ascertaining at the sending node if the media to be transmitted is either time-sensitive or not time-sensitive. For media ascertained as non time-sensitive, the media is transmitted by adjusting the rate of transmission at the sending node based on network conditions. As the non time-sensitive media is received, the receiving node generates one or more low priority requests for the retransmission of any missing non time-sensitive media lost during the transmission. The method also includes transmitting the time-sensitive media from the sending node to the receiving node. As the time-sensitive media is received, the receiving node ascertains if a predetermined acceptable network transmission loss level is met. If met, the receiving node generates one or more low priority requests for the retransmission of any missing time-sensitive media lost during transmission. The sending node retransmits the missing time-sensitive and non time-sensitive media in response to the low priority requests when bandwidth on the network becomes available in excess of what is needed for the transmission of time-sensitive media. | 2009-04-23 |
20090103434 | Ingress traffic flow control in a data communications system - Embodiments of the invention provide flow control of incoming data packets to data processing resources via a controller that can receive and react to advanced backpressure messages. These advanced backpressure messages are used to rate limit the data packets based one or more of the following factors: traffic class, traffic priority, destination port. The controller can also generate a traffic preference message to an upstream source of the data packets to inform the upstream unit of the most appropriate type of data that should be transmitted downstream at that time, thereby improving the likelihood of the transmitted data being processed in a proper and timely manner by the downstream data processing resources. Embodiments of the invention can improve the performance of a communications system during periods of congestion by ensuring that high-priority traffic has precedence over traffic of lower priority while maximizing utilization of the ingress data path bandwidth. | 2009-04-23 |
20090103435 | Dynamic rate adaptation for distributed wireless network - A control strategy and/or method by which (1) a network device may reduce energy consumption though the use of lower-rate mode(s) without affecting spectrum opportunities for other network devices, which may as a result increase energy efficiency in a networked device; and (2) a network device may reduce unnecessary use of higher-rate mode(s) to allow other devices to access the common medium, which may increase usage fairness amongst devices and overall network robustness. | 2009-04-23 |
20090103436 | System and method for reducing traffic in a wide area Ethernet network - A system and method retrieves device forwarding information from switching devices and installs it as static device forwarding information on other switches to prevent multiple copies of communications being sent from those switches. | 2009-04-23 |
20090103437 | Method of transmitting/receiving data in sensor network for reducing overhearing of sensor nodes - Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network. | 2009-04-23 |
20090103438 | Grant Based Adaptive Media Access Control Scheduling - Methods and Apparatus are disclosed for grant based adaptive media access control scheduling. According to an embodiment, a method for MAC scheduling of a plurality of data flows for downlink transmission of data bytes is disclosed. The method enables determining a data flow to be scheduled amongst the plurality of data flows based at least in part on one or more Quality of Service (QoS) parameters. The method further enables computing number of data bytes that are associated with the data flow that is determined to be scheduled. Subsequently, the computed number of data bytes is scheduled for transmission. Further, a value is stored in a grant counter that is associated with the data flow that is determined to be scheduled. Based on the scheduling the value stored in the grant counter is modified. | 2009-04-23 |
20090103439 | Method and Device for Realizing Content Flowing on P2P Network - This invention relates to a method and device for realizing content flowing continuously on P2P network, which is used for dividing the content to be transmitted into a plurality of blocks; detects connection state of all nodes performing the content transmission, calculates an upload rate coefficient of each node, determines the selected upload rate coefficient according to the upload rate coefficient, and determines a transmission rate of the content stream and the number of the content stream transmitted by a content source, the content source distributes the content blocks being able to be transmitted by each node proportionally according to the selected upload rate coefficient of each node; and transmits the distributed content blocks to the corresponding nodes respectively, and controls the node to re-transmit the received content block to other nodes. The present invention can utilize the resource more reasonably and fully. | 2009-04-23 |
20090103440 | Collision avoidance for uplink VoIP transmission - Disclosed is a method the includes determining if a collision will occur between a transmission from a first user equipment that uses a persistently assigned uplink resource (such as for VoIP packet transmissions) and a retransmission from a second user equipment that uses a synchronous non-adaptive automatic repeat request procedure (e.g., synchronous, non-adaptive HARQ). If it is determined that a collision will occur, the method dynamically allocates the first user equipment to another uplink resource to avoid the collision, while if it is determined that the collision will not occur, the first user equipment is not dynamically allocated another uplink resource so that the first user equipment sends its transmission using the persistently assigned uplink resource. The embodiments of this invention pertain to both the base station (e.g., an evolved Node-B) and the user equipment. | 2009-04-23 |
20090103441 | COMMUNICATION APPARATUS AND SWITCHING DEVICE - A CRC calculating unit calculates a DCS code for a DA field to a DATA field and an FCS code for the DA field to a DCS field. A DCS checking unit outputs a DCS check result with a calculated DCS code and a DCS code in the DCS field to a terminal operating unit. An FCS checking unit outputs an FCS check result with a calculated FCS code and an FCS code in the FCS field to an FCS converting unit. The FCS checking unit determines whether to forward through the frame or to forward the frame by storing the calculated FCS code in the FCS field based on the FCS check result. The terminal operating unit determines a processing mode based on the DCS check result. | 2009-04-23 |
20090103442 | Communicating risk information within a multi-domain network - A method for communicating risk information within a network including a plurality of domains connected to one another at the border nodes of said domains, characterized by steps consisting of:
| 2009-04-23 |
20090103443 | Loopback configuration for bi-directional interfaces - An interface for implementing a loopback configuration which offers improved calibration and/or testing of an electronic system is disclosed. More specifically, embodiments provide a bi-directional interface with at least two portions or partitions capable of communicating data in opposite directions and implementing a loopback configuration between components of an electronic system, thereby enabling more flexible, efficient and effective calibration and/or testing of the electronic system using a single interface. The loopback of the partitioned bi-directional interface may be used to perform data link training and/or electronic system testing. In one embodiment, the loopback configuration of the interface may be reversible. Additionally, the looped or coupled end of the partitions may be switched from one component to another, thereby reversing the configuration of the loopback in one embodiment. As such, embodiments enable different and/or additional calibration operations and/or tests to be performed when compared with conventional loopback configurations. | 2009-04-23 |
20090103444 | Method and Apparatus for Power Throttling of Highspeed Multi-Lane Serial Links - A method for managing the power consumption of an information handling system including a multi-lane serial link having a lane setting that identifies the number of active lanes in the multi-lane serial link. The method may include determining a number of lanes required for the multi-lane serial link based on one or more I/O devices connected to the information handling system, triggering a reduction of the lane setting of the multi-lane serial link if the lane setting of the multi-lane serial link is greater than the determined number of lanes required, and automatically reducing power to the multi-lane serial link in response to the reduction of the lane setting. | 2009-04-23 |
20090103445 | METHOD AND APPARATUS FOR ENHANCING VARIOUS PDCP AND LAYER 2 OPERATIONS - Method and apparatus for enhancing interactions between layers in a wireless communications system. A PDCP layer sublayer provides a delivery confirmation service to at least one upper layer above the PDCP layer. | 2009-04-23 |
20090103446 | APPARATUS AND METHOD FOR ESTIMATING NOISE AND INTERFERENCE ON RANGING CHANNEL IN A BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for estimating a noise/interference power value of a ranging channel in a broadband wireless communication system are provided. An apparatus for a base station in a broadband wireless communication system includes an operator, an estimator, and an adder/subtractor. The operator calculates the receive (RX) power of a ranging subcarrier signal received through ranging subcarriers. The estimator estimates the signal power of a detected ranging signal. The adder/subtractor calculates the noise/interference power of a ranging channel by subtracting the signal power of the detected ranging signal from the RX power of the ranging subcarrier signal. | 2009-04-23 |
20090103447 | RADIO COMMUNICATION METHOD AND RADIO BASE STATION APPARATUS BASED ON VARIABLE TTI LENGTH CONTROL - A controlling method and a radio base station apparatus capable of variably determining a Transmission Time Interval (TTI) length in accordance with a communication environment of a mobile terminal is disclosed. The radio base station apparatus includes a receiving section receiving information via an uplink channel; and a scheduler variably determining a Transmission Time Interval (TTI) length for any one of an uplink shared channel and a downlink shared channel or both based on at least any of a moving speed of a mobile terminal, location of the mobile terminal in a cell, a provided throughput value, and a number of retransmissions obtained from the received information. Preferably, the scheduler includes a TTI length allocation table describing relationships between parameter values and the corresponding TTI length, the parameters being used for estimating the location and/or the moving speed of the mobile terminal. | 2009-04-23 |
20090103448 | APPARATUS, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR CALCULATING THROUGHPUT REQUIREMENTS OF A NETWORK - An apparatus, method and computer-readable storage medium are provided for calculating an estimated throughput requirement of a network, such as to facilitate selecting the minimum bandwidth, maximum bandwidth or some other appropriate bandwidth for providing network services to a customer accessing that network. In this regard, a method of calculating a throughput requirement of a network includes receiving a bandwidth requirement. The method also includes calculating a data link-layer frame rate requirement based on the bandwidth requirement and a frame size, where the calculated frame rate requirement is limited by a line rate for transmission of data packets across a core network. In addition, the method includes calculating a data link-layer throughput requirement based on the calculated frame rate requirement and the frame size. | 2009-04-23 |
20090103449 | VIRTUAL RESPONDER FOR THE AUTO-DISCOVERY OF A REAL RESPONDER IN A NETWORK PERFORMANCE TEST - Particular embodiments provide a virtual responder that can be contacted by any number of senders. When a sender wants to perform a measurement test with a real responder, the sender sends a control message to a virtual responder. The virtual responder is configured to determine a real responder based on real responder selection metrics. The virtual responder may poll the real responders at certain times to receive the real responder selection metrics. The virtual responder then selects a real responder from a plurality of real responders based on the real responder's selection metrics. The virtual responder then sends contact information for the selected real responder to the sender device. This allows the sender device to contact the selected real responder to perform the measurement test with a real responder. | 2009-04-23 |
20090103450 | VOIP PERFORMANCE OPTIMIZATION FOR E-DCH POWER LIMITATION - User equipment in a wireless communication system monitors scheduling information and locally detects a change in link data rate of the uplink channel based on the monitored scheduling information. In this way, a change in link data rate can be detected directly without significant delay. This direct or early detection of a rate change is then combined with an appropriate system reaction. The information of the detected change in link data rate is preferably utilized for adapting the application data rate of an IP application running in the user equipment. As an alternative, or as a complement, data packets are classified based on relative importance and selected for transfer of information over the uplink channel based on the classification of data packets and in dependence on the detected change in link data rate. | 2009-04-23 |
20090103451 | Method and system for topology discovery in an SIP network - A method for discovering topology in an SIP network is disclosed. According to the method, the SIP network is divided into domains governed by corresponding SIP proxies. A management system creates a topology agent for each SIP-domain and registers it with the governor proxy of each SIP-domain. Each topology agent generates topology-exploring messages to other agent and accumulates topology-exploring messages from other agents, gather routing information of the SIP network based on the collected topology-exploring messages to deduce topology of the SIP network. | 2009-04-23 |
20090103452 | AD-HOC SECURE COMMUNICATION NETWORKING BASED ON FORMATION FLIGHT TECHNOLOGY - An ad-hoc secure communication network and methods of communicating with a fleet of vehicles using the ad-hoc communication network is provided. The method includes communicating relatively long range communication signals to a fleet router. The fleet router is a select one of the vehicles in the fleet. The method further includes forming an ad-hoc communication network between the fleet vehicles to communicate relatively short range communication signals between the vehicles in the fleet. Wherein each vehicle in the fleet uses surveillance information to determine the network topology and each vehicle routes messages based on the discovered network topology. | 2009-04-23 |
20090103453 | Network Planning and Optimization of Equipment Deployment - Embodiments of the present invention provide systems, devices and methods for improving the efficient deployment and configuration of networking equipment within a network build-out. In certain embodiments of the invention, an iterative analysis of inter-node equipment placement and connectivity, and inter- and intra-node traffic flow is performed to identify a preferred deployment solution. This analysis of deployment optimization takes into account both configurations from a network node perspective as well as from a network system perspective. Deployment solutions are iteratively progressed and analyzed to determine a preferred solution based on both the cost of deployment and satisfaction of the network demands. In various embodiments of the invention, a baseline marker is generated from which the accuracy of the solution may be approximated that suggests to an engineer whether the deployment is approaching an optimal solution. | 2009-04-23 |
20090103454 | WIRELESS COMMUNICATION SYSTEM AND METHOD FOR ASSURING COMMUNICATION QUALITY OF PACKET FLOW - A base station or packet control apparatus, constituting a wireless access network system to be connected to an IP network via a node apparatus, includes a QoS authorization and admission control function for verifying a first communication quality request received from a wireless mobile station based on communication quality level information assured previously to the wireless mobile station, converting the request into a second communication quality request assured to the wireless mobile station, and converting the second communication quality request into a third communication quality request acceptable to communication resources of the wireless access network, and a QoS admission control function for converting, when a second or third communication quality request is received from another node apparatus connected to another wireless access network on account of handover of a wireless mobile station between node apparatuses, the received communication quality request into a communication quality request acceptable to the communication resources. | 2009-04-23 |
20090103455 | METHODS AND APPARATUS FOR MOBILITY SUPPORT AND IP MULTIMEDIA SUBSYTEM (IMS) REGISTRATION IN A MULTIMODE NETWORK ENVIRONMENT - Described aspects provide for improving the mobility of wireless communication devices between one network domain and another network domain, specifically, but not limited to, between a Wireless Local Area Network (WLAN) and a cellular network and the like. Present aspects provide for services to be moved seamlessly and in a reliable manner between the cellular and WLAN domains in order to minimize service disruption for the end user and provide the requisite Quality of Service (QoS) for the different applications. The aspects herein presented provide for various mechanisms that serve to improve the decision points related to when and what technology each service is expected to be associated with and provides better techniques to move the wireless communication device between cellular and WLAN domains when in-traffic and when idle. | 2009-04-23 |
20090103456 | PROTOCOL FOR RELIABLE, SELF-ORGANIZING, LOW-POWER WIRELESS NETWORK FOR SECURITY AND BUILDING AUTOMATION SYSTEMS - A method to wirelessly network a sensor/actuator node is described. The sensor/actuator node is installed in a sensor/actuator node network and arranged in a hierarchical manner with a plurality of node levels and a cluster head network. A unique node identifier is assigned to the sensor node and the sensor node network is initialized. The sensor node is woken-up to perform a task and then set to an active low power mode. | 2009-04-23 |
20090103457 | Method and apparatus for providing notification of an attempted communication - Method and system for providing notification of attempted voice communication between a calling party and a called party in a voice communication system includes the called party receiving a voice communication attempt, sending notification of the voice communication attempt to a registration device associated with the called party, forwarding notification from the registration device to a terminating point associated with the called party and storing notification at the terminating point. Notification occurs as a result of a called party calling feature diverting the voice communication attempt. Notification is generated and sent by an inbound voice communication processor of a VoIP communication system. The registration device is an outbound/registration communication processor of a VoIP communication system. A system for providing notification of attempted voice communication between a calling party and a called party includes, among other components, an outbound communication processor adapted for receiving notification of an attempted voice communication. | 2009-04-23 |
20090103458 | AVOIDANCE OF INCORRECT CLASSIFICATION OF DESIRED MESSAGES AS SPAM-OVER-INTERNET-TELEPHONY MESSAGES - The subject matter of the invention is a method and an apparatus for avoiding incorrect classification of desired messages as spam-over-Internet-telephony messages, SPIT messages for short, and accordingly a connection request is forwarded within communication networks from a terminal belonging to a first subscriber to a terminal belonging to a second subscriber, a first communication network being a home communication network for the first subscriber, and the first subscriber's terminal being in a registration state which characterizes that communication network in which the first subscriber's terminal is registered at the time of the connection request, where subscriber-related information, falsifying the identity of the first subscriber, which the connection request holds regarding the registration state of the first subscriber's terminal gives rise to the possibility of incorrect classification of the connection request by the second subscriber. A server system routes the connection request via a communication apparatus located in the home communication network to the second subscriber's terminal, the communication apparatus avoiding incorrect classification of the connection request by the second subscriber before the connection request is forwarded by removing the subscriber-related information falsifying the identity of the first subscriber which the connection request holds regarding the registration state of the first subscriber's terminal. | 2009-04-23 |