27th week of 2012 patent applcation highlights part 35 |
Patent application number | Title | Published |
20120170671 | INTEGRATED CIRCUIT CHIP, SYSTEM INCLUDING MASTER CHIP AND SLAVE CHIP, AND OPERATION METHOD THEREOF - An integrated circuit chip includes: a plurality of input pads; a plurality of first buffers respectively coupled with the input pads; and a plurality of second buffers respectively coupled with the input pads, wherein the first buffers are configured to receive signals of a higher frequency than the second buffer, wherein the second buffers and the first buffers are configured to selectively output the signals input to the selected buffers according to an operation mode that is set in response to an input signal. | 2012-07-05 |
20120170672 | MULTICARRIER TRANSCEIVER AND METHOD FOR PRECODING SPATIALLY MULTIPLEXED OFDM SIGNALS IN A WIRELESS ACCESS NETWORK - A multicarrier transceiver for communicating spatially multiplexed orthogonal frequency division multiplexed (OFDM) signals over two or more spatial channels in a wireless access network in accordance with an orthogonal frequency division multiple access technique with a plurality of antennas is generally disclosed herein. In some embodiments, the multicarrier transceiver comprises a matrix generator to generate a matrix for precoding transmission symbols based an indicator received from a receiving station, the indicator being based at least in part on channel characteristics. The multicarrier transceiver also includes a precoder to multiply the transmission symbols by the matrix for transmission on groups of subcarriers that comprise the OFDM signals using the antennas for transmission through two or more spatial channels, each of the two or more spatial channels to concurrently convey separate spatially multiplexed data streams over a same set of subcarriers. | 2012-07-05 |
20120170673 | DIGITAL MODULATION JITTER COMPENSATION FOR POLAR TRANSMITTER - This disclosure is directed towards techniques and methods of suppressing the effect of modulated clock jitter in a digital to analog conversion (DAC) circuit of a polar modulator in a transceiver. A phase locked loop (PLL) in a modulator circuit may introduce a deterministic jitter in DAC generated pulses which may lead to amplitude variations in the DAC generated pulses. The clock jitter may change the duty cycle of the input amplitude to the DAC which may result in a variation of the output of the DAC generated pulse. A digital pre-distortion or digital multiplier circuit may be introduced before the DAC circuit to increase or decrease the DAC amplitude to compensate for the pulse width modulation. | 2012-07-05 |
20120170674 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DATA IN A MULTI-ANTENNA SYSTEM, AND SYSTEM USING THE SAME - A data reception apparatus and method for generating and transmitting feedback information in a multi-antenna system using grouped antennas, and a data transmission apparatus and method for transmitting a data stream of a user according to a transmission mode selected depending on the feedback information is disclosed. The reception apparatus generates feedback information depending on maximum channel quality information, an antenna group index associated with the maximum channel quality information, rank information, and remaining channel quality information associated with the rank information, and transmits the feedback information to the transmission apparatus. The transmission apparatus selects one of a multi-user mode and a single-user mode as a transmission mode depending on the feedback information and transmits a data stream of a user via multiple antenna groups or one antenna group, according to the selected transmission mode. | 2012-07-05 |
20120170675 | PRE-CODING METHOD AND APPARATUS - The present invention provides a pre-coding method in a multi-user macro-diversity transmission system. The method comprises: obtaining, for a mobile station in the multi-user macro-diversity transmission system, a first sub-precoder that guarantees orthogonality between equivalent channels of users; obtaining a second sub-precoder by performing QR decomposition based on equivalent channels precoded through the first sub-precoder; obtaining a final pre-coder with respect to the mobile station by combining the first sub-precoder and the second sub-precoder; and performing pre-coding on data of the mobile station with the final precoder The present invention further provides a corresponding base station and a multi-user macro-diversity transmission system. Through the technical solution of the present invention, the multi-user macro-diversity transmission system may achieve more macro-diversity gain, thereby greatly enhancing the performance of the multi-user macro-diversity transmission. | 2012-07-05 |
20120170676 | Robust Linear Precoder Designs for Multi-Cell Downlink Transmission - Methods and systems for optimizing the utilities of receiver devices in a wireless communication network are disclosed. Precoder design formulations that maximize a minimum worst-case rate or a worst-case sum rate are described for both full base station, cooperation and limited base station cooperation scenarios. In addition, optimal equalizers are also selected to optimize the worst-case sum rate. | 2012-07-05 |
20120170677 | COORDINATED LINEAR BEAMFORMING IN DOWNLINK MULTI-CELL WIRELESS NETWORKS - System and methods are disclosed for optimizing wireless communication for a plurality of mobile wireless devices. The system uses beamforming vectors or precoders having a structure optimal with respect to the weighted sum rate in a multi-cell orthogonal frequency division multiple access (OFDMA) downlink. A plurality of base stations communicate with the mobile devices and all base stations perform a distributed non-convex optimization exploiting the determined structure. | 2012-07-05 |
20120170678 | METHODS AND APPARATUS FOR TRELLIS-BASED MODULATION ENCODING - Methods and apparatus are provided for trellis-based modulation encoding. A signal is modulation encoded by encoding one or more blocks of the signal using one or more corresponding edges in a trellis, wherein each edge in the trellis has a corresponding bit pattern; selecting a winning path through the trellis based on at least one transition-based run-length constraint; and generating an encoded sequence using edges associated with the winning path. Exemplary trellis pruning techniques are also provided. The winning path through the trellis is selected by minimizing one or more modulation metrics. | 2012-07-05 |
20120170679 | METHOD FOR TRANSCEIVING REFERENCE SIGNAL IN COMP OPERATION IN WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS AN MU-MIMO SCHEME - Disclosed is a method for efficiently transceiving information required for implementing a multi-cell-based CoMP MU-MIMO scheme. For this purpose, a base station which performs CoMP operation generates: (A) a reference signal sequence on the basis of a specific base station; or generates (B) the same reference signal sequence on the basis of a CoMP ID, and transmits the generated sequence to user equipment. To support an MU-MIMO scheme and to perform a joint processing method, the base station must additionally transmit CoMP reference signal sequence information, frequency shift information, etc. to the user equipment in said (A) case, and generates a CoMP reference signal on the basis of a preset CoMP set ID and transmits the generated signal to the user equipment in said (B) case. | 2012-07-05 |
20120170680 | Receiver Synchronization in Radio Communication Systems Employing Transmit Diversity - According to one or more embodiments, multiple transmitters may simultaneously transmit orthogonal acquisition sequences with certain frequencies zeroed out, such that receivers receiving a signal (waveform) may separate the signal into the orthogonal sequences based on which frequencies are zeroed out to perform acquisition processes. For example, each transmitter may simultaneously transmit an orthogonal acquisition sequence with certain tones zeroed out depending upon which transmitter transmits the symbol. A particular receiver may then receive a signal, and filter it to produce a plurality of filtered signals that distinguish orthogonal acquisition sequence symbols based on which tones are zeroed out within the symbols. The particular receiver may synchronize with a particular transmitter in response to detecting an orthogonal acquisition sequence within one of the filtered signals and correlating the detected sequence to the particular transmitter based on from which of the plurality of filtered signals the orthogonal acquisition sequence is detected. | 2012-07-05 |
20120170681 | Negative Amplitude Polar Transmitter - A polar transmitter includes a phase monitoring unit for monitoring input modulating data. When a phase transition exceeds a phase transition threshold, the phase monitor unit can signal an amplitude negation unit to invert the amplitude data coupled to the polar amplifier. The phase monitoring unit can also add an offset to the phase data that is provided to a frequency synthesizer. In another embodiment, when the phase transition threshold is exceeded, the phase monitoring unit can trigger inverting differential frequency data coupled to the polar amplifier. In one embodiment, the phase offset and the amplitude negation are applied until a second phase transition value exceeding the phase transition threshold is detected. If such an event is detected, then the input amplitude data is no longer inverted and the phase offset value is no longer added to the modulating data. | 2012-07-05 |
20120170682 | Dual Channel Transmission - There is provided a solution for dual channel transmission in a radio communication device. Both transmission signals to be transmitted on different channels are mixed two times by using oscillator signals having the same frequencies for both transmission signals, and the transmission circuitry is arranged to process the signals so that the transmission signals are nevertheless up-converted to different frequency channels. | 2012-07-05 |
20120170683 | Methods, Apparatuses, and Related Computer Program Product for Information Channel Configuration - It is disclosed a method (and related apparatus) including configuring N information channels each carrying acknowledgement information such that the N pieces of acknowledgement information are transmittable in the form of a phase shift keying symbol having an order of N | 2012-07-05 |
20120170684 | Method and System for Decoding OFDM Signals Subject to Narrowband Interference - A method estimates a wireless channel at a receiver. The signal is transmitted using narrowband orthogonal frequency division demultiplexing (OFDM) and frequency subcarriers, and the signal includes a set of data tones and a set of pilot tones. The channel and pilot tone interference are estimated based on all the pilot tones extracted from the signal and a channel model. The set of data are equalized based on the channel estimate. Data interference is detected according to the pilot interference and the equalized data tones. Subcarrier interference-to-noise ratios are determined based on the data interference. Signal strengths of the data tones are determined based on the equalized data tones, log-likelihood ratios of bits represented by the data tones are determined based on the subcarrier interference-to-noise ratios and the signal strength of the data tones. | 2012-07-05 |
20120170685 | Wireless Communication Using Beam Forming And Diversity - A method and apparatus for wirelessly transmitting real-time data streams is described. To ensure continuous data flow, fast diversity and slow diversity can be used. Fast diversity chooses a receive antenna based on received signal parameters, such as signal strength, during the transmission header and prior to information transfer. Slow diversity stores received signal parameters from previous packets, associates the parameters with a selected antenna, and uses the parameter history to denote a “default” antenna. Additionally, receive and/or transmit beam forming can be used to maintain continuous communication between stations. Beam forming, which combines antenna signals to maximize performance, is possible when at least two transmit/receive signal processing chains are available. | 2012-07-05 |
20120170686 | MULTI-CHANNEL RECEIVER - This invention relates to a method, a computer program product, a device, and a system, wherein a receiver unit is configured to operate in a single-channel mode and in a multi-channel mode, wherein in the single-channel mode the receiver unit is configured to output exactly one channel of a received signal, and in the multiple-channel mode the receiver unit is configured to output at least two channels of the received signal. | 2012-07-05 |
20120170687 | Device and A Method for Obtaining a Radio Controlled Clock Signal - A device for obtaining a RCC signal and related methods are described herein improves the reliability of the RCC signal reception and demodulation. In one aspect, a device configured to obtain a RCC signal includes: a receiving circuit to receive an analog AM RCC signal and to process said analog AM RCC signal to generate a digital AM RCC signal; and a demodulation circuit in connection with said receiving circuit, to demodulate said digital AM RCC signal to generate the RCC signal. In another aspect, a method for obtaining a RCC signal includes: processing a received analog AM RCC signal to generate a digital AM RCC signal; and demodulating said digital AM RCC signal to generate said RCC signal. Since the digital processing method is more reliable than the analog processing method, the reliability of RCC signal reception and demodulation are improved. | 2012-07-05 |
20120170688 | DEMODULATOR OF DIGITAL MODULATED SIGNAL, RECEIVER APPARATUS EMPLOYING THE DEMODULATOR, AND DEMODULATION METHOD - A demodulator comprising an input structured to receive at least one past value and a current value both associated with the same bit transmitted in different time instants, a bit decoder configured to provide a decoded bit from an input value, a quality signal evaluation module configured to provide a quality signal representing a quality of the current value, and a filtering module structured to provide a filtered value computed as a weighted average of said at least one past value and said current value. Moreover the demodulator comprises a selection module connected between said input and said bit decoder, configured to transfer the current value as the input value of the bit decoder if the quality is greater than a reference value or transfer the filtered value as the input value of the bit decoder if the quality is not greater than the reference value. | 2012-07-05 |
20120170689 | Geometry Based Efficient Decoder for Underdetermined MIMO Systems and Decoding Method Thereof - A decoder for underdetermined MIMO systems with low decoding complexity is provided. The decoder consists of two stages: 1. Obtaining all valid candidate points efficiently by slab decoder. 2. Finding the optimal solution by conducting the intersectional operations with dynamic radius adaptation to the candidate set obtained from Stage 1. A reordering strategy is also disclosed. The reordering can be incorporated into the proposed decoding algorithm to provide a lower computational complexity and near-ML decoding performance for underdetermined MIMO systems. | 2012-07-05 |
20120170690 | AUTO CONFIGURABLE 2/3 WIRE SERIAL INTERFACE - An automatically configurable 2-wire/3-wire serial communications interface (AC23SCI), which includes start-of-sequence (SOS) detection circuitry and sequence processing circuitry, is disclosed. When the SOS detection circuitry is coupled to a 2-wire serial communications bus, the SOS detection circuitry detects an SOS of a received sequence based on a serial data signal and a serial clock signal. When the SOS detection circuitry is coupled to a 3-wire serial communications bus, the SOS detection circuitry detects the SOS of the received sequence based on a chip select (CS) signal. The SOS detection circuitry provides an indication of detection of the SOS to the sequence processing circuitry, which initiates processing of the received sequence using the serial data signal and the serial clock signal upon the detection of the SOS. As such, the AC23SCI automatically configures itself for operation with some 2-wire and some 3-wire serial communications buses without external intervention. | 2012-07-05 |
20120170691 | INTERFERENCE CANCELLATION AND IMPROVED SIGNAL-TO-NOISE RATIO CIRCUITS, SYSTEMS, AND METHODS - Interference cancellation for wideband and narrowband communications systems is provided without apriori knowledge of statistical information about an interfering signal. In one embodiment a demodulator circuit can operate in an environment where a “no lock” situation would normally occur to remove the interference and acquire signals in low signal-to-noise ratio (SNR) conditions and high signal-to-interference ration (SIR) conditions. In other embodiments, performance is improved by introducing statistics of the interfering signal, and these statistics regarding the communications channel and interference properties (i.e., characteristics of the interfering signal) can be adaptive or “learned” in other embodiments. | 2012-07-05 |
20120170692 | CLOCK DATA RECOVERY CIRCUIT AND CLOCK DATA RECOVERY METHOD - A clock data recovery circuit includes: a demodulation filter that receives a transmission signal transmitted by two orthogonal carrier waves having I and Q phases and executes demodulation to obtain a demodulated wave having an phase and a demodulated wave having a Q phase from the transmission signal; a first determination circuit that determines whether an absolute value of one of the two demodulated waves is greater than an eye opening maximum value at an ideal clock phase of the transmission signal; a second determination circuit that determines whether the one demodulated wave is greater than zero; a third determination circuit that determines whether the other one of the two demodulated waves is greater than zero; and a phase comparison unit that detects whether a phase of a clock signal included in the transmission signal is leading a phase of a data signal included in the transmission signal, based on determination results obtained by the first to third determination circuits. | 2012-07-05 |
20120170693 | COMMUNICATION RECEIVER AND A RECEIVING METHOD - A communication receiver and a receiving method are disclosed. An analog front-end device samples a receiving signal and generates a sampled signal. A signal detector detects presence of the receiving signal according to the sampled signal. A symbol timing recovery (STR) unit determines an optimal symbol sampling point according to a zero-crossing point of the sampled signal when the receiving signal is present, and then generates a recovered symbol based on an optimally chosen sampled value according to the optimal symbol sampling point. | 2012-07-05 |
20120170694 | DISCRETE TIME RECEIVER - Provided is a discrete time receiver having a structure capable of processing various broadband signals. The discrete time receiver uses a discrete time filter having a sampling frequency in a constant range so as to process a signal having an input frequency in a wide range and a wide bandwidth, so that it is possible to reduce current consumption and the area of the discrete time receiver. Since the discrete time receiver is easily integrated with a digital device, it is easy to design a chip using system on chip (SoC). | 2012-07-05 |
20120170695 | Methods And Apparatus For Automatic Gain Control Using Samples Taken At Desired Sampling Phase And Target Voltage Level - Methods and apparatus are provided for automatic gain control in a receiver using samples taken at a desired sampling phase and target voltage level. The gain of a received signal is adjusted by obtaining a plurality of samples of the received signal substantially at a desired sampling phase (such as a center of a given unit interval), wherein at least one of the samples is taken substantially at a target voltage level; comparing the plurality of samples to determine whether the received signal has an amplitude that is substantially equal to the target voltage level; and adjusting a receiver gain based on whether the received signal amplitude is substantially equal to the target voltage level. The comparison can comprise the evaluation of a logic function, such as an exclusive OR function. The comparison can be performed over a plurality of samples to obtain an average gain update decision. The receiver gain can be adjusted based on a histogram of the average gain update decision, relative to a predefined threshold. | 2012-07-05 |
20120170696 | RECEIVER - A receiver includes: a first mixer that generates an in-phase signal from a received signal; a second mixer that generates a quadrature signal from the received signal; a first A/D converter that converts the in-phase signal into a digital in-phase signal; a second A/D converter that converts the quadrature signal into a digital quadrature signal; a calculator that calculates an addition/subtraction quantity based on a correction quantity, which is based on an amplitude value of the digital in-phase signal or the digital quadrature signal, and a quantization error of the first A/D converter or the second A/D converter; and an addition/subtraction unit that adds or subtracts the addition/subtraction quantity to or from the digital in-phase signal or the digital quadrature signal. | 2012-07-05 |
20120170697 | DATA RECOVERY APPARATUS AND METHOD BY USING OVER-SAMPLING - A data recovery apparatus and method by using over-sampling are provided. The data recovery apparatus by using over-sampling includes an over-sampling module, a data regeneration unit, a phase alignment unit, a phase decision module, and an output data correction unit. The over-sampling module samples serial data according to a clock signal, so as to output M-bit data, in which each bit in the serial data is sampled N times. The phase alignment unit selects specific M-bit data from a P-bit signal output by the data regeneration unit, and distinguishes the specific M-bit data to X groups of N-bit signals. The phase decision module determines a direction of phase adjustment according to the specific M-bit data. The output data correction unit selects and outputs first or second recovery data constituted by first or second specific bits of each group of N-bit signal according to the direction of phase adjustment. | 2012-07-05 |
20120170698 | DESIGN STRUCTURE FOR WINDOW COMPARATOR CIRCUIT FOR CLOCK DATA RECOVERY FROM BIPOLAR RZ DATA - A clock-data recovery doubler circuit for digitally encoded communications signals is provided. A window comparator includes two thresholds. A clock output is created by the window comparator and also used internally as feedback. Based on the clock output, the window comparator circuit collapses the thresholds while sampling input Bipolar return to zero data. | 2012-07-05 |
20120170699 | METHOD TO DECREASE LOCKTIME IN A PHASE LOCKED LOOP - A method and mechanism for reducing lock time of a dual-path phase lock loop (PLL). The PLL comprises a dual-path low-pass filter (LPF). The LPF includes a first filter and a second filter. The first filter comprises a passive second-order lead-lag low-pass filter. The second filter comprises a first-order lag low-pass filter. During a lock-acquisition state, an impedance value within the second stage is bypassed, which increases the loop bandwidth of the PLL. In addition, a resistance within the first stage is increased in order to increase the gain of the first stage and maintain stability within the PLL. During a lock state, the impedance value may no longer be bypassed and the increased resistance may be returned to its original value. | 2012-07-05 |
20120170700 | Nuclear Fusion - Our device realize nuclear (or proton) fusion in void thanks to 2 or more nuclear (or proton) beams. | 2012-07-05 |
20120170701 | PROTON ENGINE - A power generation device that converts matter into energy. A solenoid is rotated circumferentially at high speed clockwise or counter-clockwise. A coiled semi-conductor tube of similar size, which contains charged particles in gas or plasma form is rotated at high speed in the opposite direction. The hollow coil is wrapped in a conducting coil that creates a magnetic field inside it, holding the particles in place as an RF coil injects a resonant frequency to align the spins of the particles. The particles are driven at a high rate of speed into the solenoid's Magnetic field. The resulting energy output is collected. | 2012-07-05 |
20120170702 | SYSTEM OF CONTROLLING STEAM GENERATOR LEVEL DURING MAIN FEED-WATER CONTROL VALVE TRANSFER FOR NUCLEAR POWER PLANT - A system and a method of transforming a gain and an integral time constant of a proportional-integral (PI) controller according to a timer lapse time to relieve an excessive phenomenon of a steam generator level caused by rapid changes in open degrees of a downcomer feed-water valve and an economizer feed-water valve when reactor power transfers between low and high power sections. Accordingly, an excessive phenomenon of a steam generator level is relieved at a transfer time when reactor power transfers between low and high power sections. Therefore, a possibility of a stop of a reactor caused by the excessive phenomenon of the steam generator level is reduced to relieve burden on an operator and improve an operation rate and economic feasibility of a nuclear power plant. | 2012-07-05 |
20120170703 | Method and apparatus for a jet pump inlet mixer integral slip joint clamp - A method and apparatus for providing a Boiling Water Reactor (BWR) jet pump inlet-mixer integral slip joint clamp to constrain the inlet mixer and diffuser to mitigate inlet mixer flow induced vibration of a BWR jet pump assembly. The slip joint clamp includes horizontally projecting flanges with vertical sidewalls that protrude toward a lowest distal end of the inlet mixer. Fasteners penetrating the flanges provide a biasing load on the diffusers by being tightened to press against an upper crown on the diffuser. One or more flanges may be used. Laterally disposed gaps between the flanges may provide a clearance for guide ears of the diffuser to fit between the flanges. | 2012-07-05 |
20120170704 | METHOD AND APPARATUS FOR A JET PUMP THREE POINT SLIP JOINT CLAMP - A method and apparatus for providing a Boiling Water Reactor (BWR) jet pump three point slip joint clamp to mitigate sleep joint leakage flow induced vibration of a BWR jet pump assembly. A collar, provided as one seamless component or in separate portions, is installed on the upper crown of a diffuser. The collar includes a lower set of fasteners and an upper set of fasteners that contact the inlet mixer and diffuser, respectively, to horizontally stabilize the inlet mixer in a fixed position inside of the diffuser. The upper fasteners may be anchored by bosses that ensure a light-weight design of the collar. An optional cantilevered seal (including a cantilevered overhang and a lip) may mitigate leakage from the slip joint interface. | 2012-07-05 |
20120170705 | OPTIMUM CONFIGURATION FOR FAST REACTORS - A nuclear reactor having a liquid metal or molten salt coolant in a riser space | 2012-07-05 |
20120170706 | DATA DRIVER AND DISPLAY APPARATUS USING THE SAME INCLUDING CLOCK CONTROL CIRCUIT AND SHIFT REGISTER CIRCUIT - A circuit includes a first shift register configured to be reset with a reset signal, to shift a first pulse signal and output the shifted first pulse signal as a second pulse signal, and a second shift register configured to be reset with the first pulse signal, to shift the second pulse signal and to output the shifted second pulse signal as a third pulse signal. | 2012-07-05 |
20120170707 | SWITCH DEVICE AND SHIFT REGISTER CIRCUIT USING THE SAME - A shift register circuit includes plural shift register stages for providing plural gate signals. Each shift register stage includes an input unit and a pull-up unit. The pull-up unit is utilized for pulling up a gate signal according to a system clock and a driving control voltage. The input unit is employed for outputting the driving control voltage according to a control signal and an input signal. The input unit includes a switch device having a first transistor and a second transistor. The first transistor has a first end for receiving the input signal, a gate end for receiving the control signal, and a second end. The second transistor has a first end electrically connected to the second end of the first transistor, a gate end electrically connected to the first end of the first transistor, and a second end for outputting the driving control voltage. | 2012-07-05 |
20120170708 | X-RAY CT DEVICE - Scattered X-rays scattered by an object or a structure enter in a detector (a shift detector) for detecting the positional shift of an X-ray focal point and become a noise source, thereby deteriorating the positional shift detection precision. In particular, the estimation of the dose of scattered X-rays originating from the object is difficult prior to the measurement, and correction of the scattered X-rays is important in order to precisely calculate the positional shift of the X-ray focal point. In order to address this drawback, according to the present invention, a scattered X-ray detector | 2012-07-05 |
20120170709 | DYNAMIC COLLIMATOR FOR WIDE COVERAGE AND LOW DOSE CARDIAC CT IMAGING - A CT scanner comprising a dynamic collimator disposed near an x-ray source and a controller configured to rotate the x-ray source about a subject, wherein imaging data is acquired from a single rotation of the x-ray source, the single rotation being divided into a first half-scan and a second half-scan. The controller is further configured to position the dynamic collimator after acquiring image data from one of the first half-scan and the second half-scan and simultaneous to commencement of acquiring image data from the other of the first half-scan and the second half-scan to obstruct a central portion of an x-ray beam emitted by the x-ray source during one of the first half-scan and the second half-scan. The CT scanner is further configured to reconstruct a CT image using the first set of imaging data and the second set of imaging data. | 2012-07-05 |
20120170710 | PATIENT SUPPORT SYSTEM AND SUPPORT SURFACE THEREFOR AND METHOD OF INSTALLATION THEREOF - A patient support surface, patient support system in combination with a CT scanner, and method of installing a patient support system for a surgical procedure is provided. The patient support surface includes a radiolucent elongate first member having laterally spaced first side members extending between opposite ends with a plurality of cross members extending between the first side members. The support surface further includes an elongate second member having laterally spaced second side members extending between opposite ends with a plurality of cross members extending between the second side members. One of the opposite ends of the first member is configured for attachment to one of the ends of the second member. The other of the opposite ends of the first member is configured for attachment to a first support, and the other of the opposite ends of the second member is configured for attachment to a second support. | 2012-07-05 |
20120170711 | PROCESS AND DEVICE FOR DEPLOYING AN ANTI-SCATTERING GRID - A process for deploying an anti-scattering grid in a mammograph is provided. The mammograph comprises a radiation source configured to emit radiation for taking mammographic images of a patient, a radiation detector comprising a network of sensors arranged periodically with a first pitch, and an anti-scattering grid arranged between the source and the detector, the anti-scattering grid comprising absorption laminates of radiations arranged parallel to each other and distributed periodically with a second pitch. The process comprises: displacing the anti-scattering grid relative to the detector or displacing the detector relative to the anti-scattering grid during emission of radiation; and adapting the second pitch to the first pitch, wherein displacement is perpendicular to the direction of the laminates of the anti-scattering grid, the laminates being arranged parallel to a side of the anti-scattering grid positioned against the patient. | 2012-07-05 |
20120170712 | METHOD FOR ASSISTED POSITIONING OF AN ORGAN ON A PLATFORM OF A MEDICAL IMAGING SYSTEM - A method for assisted positioning of an organ is provided. An acquisition system comprises a platform underneath which a detector is placed for the acquisition of radiographic medical images, during which a radiation source is moved over different successive positions with respect to the detector, wherein at least one medical image is acquired at each position of the radiation source. The method comprises illuminating the platform with a light source of the acquisition system to assist the positioning of the organ on the platform; and determining, with a drive unit of the acquisition system, a positioning limit on the platform based on the distance separating the platform and a compression paddle used to compress the organ and based on the position of the light source relative to the detector, wherein the positioning limit on the platform is a limit beyond which the organ must not lie. | 2012-07-05 |
20120170713 | SYSTEM FOR INSPECTING OBJECTS BY MEANS OF ELECTROMAGNETIC RAYS, PARTICULAR BY MEANS OF X-RAYS - A system for testing objects by means of electromagnetic rays is provided that includes at least one test unit which contains at least one radiation source, arranged in a transportable, container-like housing, for producing electromagnetic radiation and at least one detector array associated with the radiation source. The test system contains at least two test units arranged beside one another, each having at least one radiation source, which are arranged in such a way that the object is irradiated from different directions. | 2012-07-05 |
20120170714 | METHODS AND APPARATUS FOR E-BEAM SCANNING - In one aspect, an x-ray scanning device is provided. The x-ray scanning device comprises a target adapted to convert electron-beam (e-beam) energy into x-ray energy, a detector array positioned to detect at least some x-rays emitted from the target, and a conveyer mechanism adapted to convey items to be inspected through an inspection region formed by the target and the detector array, wherein the target and the detector array are rotated out of alignment with each other such that x-rays emitted from the target impinge on diametrically positioned detectors of the detector array without passing through near-side detectors of the detector array. | 2012-07-05 |
20120170715 | X-RAY TUBE WITH A BACKSCATTERING ELECTRON TRAP - An x-ray tube has a backscatter electron trap to prevent extra focal radiation caused by backscattered electrons from the focal spot from passing through the beam exit window to an exterior of the x-ray tube. The backscatter electron trap has a surface that faces the x-ray beam in the x-ray tube. No portion of that surface is visible both from an arbitrary point in the x-ray beam outside of the x-ray tube and from an arbitrary point at the focal spot. | 2012-07-05 |
20120170716 | SCANNING DEVICE AND METHOD FOR BACK-SCATTER IMAGING WITH A RADIATION BEAM - The present invention discloses a scanning device of back-scatter imaging with a radiation beam, comprising: a radiation source; a fixed shield plate and a rotatable shield body disposed between the radiation source and a object to be scanned respectively, wherein the fixed shield plate is stationary with respect to the radiation source and the rotatable shield body is rotatable with respect to the fixed shield plate. The fixed shield plate is provided with a ray passing-through region thereon, which allows for a radiation beam from the radiation source to pass through the fixed shield plate, a ray incidence region and a ray emergence region are arranged on the rotatable shield body respectively, during the rotatable scanning of the rotatable shield body, the ray passing-through region of the fixed shield plate continuously intersects with the ray incidence region and the ray emergence region of the rotatable shield body to generate collimated holes for scanning. The ray passing-through region of the fixed shield plate is a rectilinear slit, the rotatable shield body is a cylinder, and the ray incidence and emergence regions are configured to be a series of small discrete holes disposed along a spiral line respectively. In addition, the present invention discloses a scanning method for back-scatter imaging with a radiation beam. | 2012-07-05 |
20120170717 | RISE/FALL TIME CONTROL FOR X-RAY PULSES - A method for generating a fast rise-time X-ray pulse includes the steps of providing an n-phase x-ray generator, the x-ray generator including an n-phase transformer having at least one primary winding and at least one secondary winding per phase, and providing n sections of rectifiers, each rectifier having at least a fast pulse rise-time mode and a n-phase ripple flat-top mode. According to the method, at least a first capacitor is charged in each of the n sections of rectifiers at a ripple of less than n-phases to create a fast leading edge of the fast rise-time pulse, and at least a second capacitor is charged in each of the n sections or rectifiers at an n-phase ripple to create a substantially flat-top of the fast rise-time pulse. | 2012-07-05 |
20120170718 | APPARATUS FOR PRODUCING X-RAYS FOR USE IN IMAGING - An apparatus for producing x-rays for use in imaging applications having a piezoelectric or pyroelectric crystal with an upper surface and a conducting film coating the upper surface. The crystal includes a plurality of field emitters formed as micrometer-scale exposed regions in the crystal having a one or more sharp peaks or ridges, or parallel trenches forming a wedge shaped emitter. The crystal is alternately heated and cooled over a period of-time so that spontaneous charge polarization occurs in the crystal. The spontaneous charge polarization causes a perpendicular electric field to arise on the crystal's top and bottom faces, that is enhanced by the sharp peaks or ridges, thereby causing field emission of surface electrons from that location. X-rays are produced when the emitted electrons strike a target material located adjacent to the emitting face, and the X-rays may be filtered or collimated. | 2012-07-05 |
20120170719 | Voice-Over-IP (VoIP) systems, components and methods for providing enhanced location information to emergency responders to respond to emergency calls - Disclosed are systems and techniques for identifying VoIP phone connector locations whereby an emergency call request can be specifically located on a VoIP phone network. This system addresses prior-art shortcomings in which the location information is attempted to be tracked with identification information stored in VoIP phones, or in which databases of location information are created relative to MAC addresses of component pieces of the VoIP phone network (such as the VoIP phones themselves, data switches, or LAN routers) in that the VoIP phone connectors are fixedly mounted in buildings and their locations can be more reliably fixed and maintained. Further described are methods for establishing databases of location and/or caller information associated with these VoIP phone connectors. Still further described are VoIP phone server embodiments that enable the location and/or caller information to be determined according to the associated VoIP phone connectors and for that information to be transmitted both to public safety access points and to campus security networks, and for emergency calls to be bridged both to public safety access points and to campus security networks. | 2012-07-05 |
20120170720 | Voice-Over-IP (VoIP) systems, components and methods for providing enhanced location information to emergency responders to respond to emergency calls - Disclosed are systems and techniques for identifying VoIP phone connector locations whereby an emergency call request can be specifically located on a VoIP phone network. This system addresses prior-art shortcomings in which the location information is attempted to be tracked with identification information stored in VoIP phones, or in which databases of location information are created relative to MAC addresses of component pieces of the VoIP phone network (such as the VoIP phones themselves, data switches, or LAN routers) Further described are VoIP phone server embodiments that enable the location and/or caller information to be determined according to the associated VoIP phone connectors and for that information to be transmitted both to public safety access points and to campus security networks, and for emergency calls to be bridged both to public safety access points and to campus security networks. | 2012-07-05 |
20120170721 | METHOD AND APPARATUS FOR PROVIDING PRIORITY INDICIA ASSOCIATED WITH A PLURALITY OF MESSAGES - A method and apparatus for displaying information about a message. A subset of audio messages is received based on a prioritized list of a plurality of audio messages. The prioritized list of audio messages is prioritized based on a first sender designated priority and a first recipient prioritization attribute corresponding to each of the plurality of audio messages. For each audio message in the subset, a first sender priority indicium indicative of the first sender designated priority of each audio message, and a recipient priority indicium indicative of a priority corresponding to the first recipient prioritization attribute of each audio message, are displayed. | 2012-07-05 |
20120170722 | Communications Using Different Modalities - Communications between users of different modalities are enabled by a single integrated platform that allows both the input of voice (from a telephone, for example) to be realized as text (such as an interactive text message) and allows the input of text (from the interactive text messaging application, for example) to be realized as voice (on the telephone). Real-time communication may be enabled between any permutation of any number of text devices (desktop, PDA, mobile telephone) and voice devices (mobile telephone, regular telephone, etc.). A call to a text device user may be initiated by a voice device user or vice versa. | 2012-07-05 |
20120170723 | Methods And Systems For Selecting A Buddy From A Buddy List And For Placing Call To A Buddy - There is described a provides a method for selecting a buddy with which a user wants to connect. The buddy having a buddy identification being listed in a pre-identified group of Internet-accessible destinations. The user using a user telephone means to which is associated identification information. The method comprises: initiating a call from the user telephone means to an Internet-enabled computing device, the call having associated thereto calling line identification (CLID) information; comparing the CLID information to the user telephone means identification information; validating the CLID information using the comparison upon positive validation, the user providing the buddy identification; consulting the pre-identified group of Internet-accessible destinations for a match between the buddy identification and one of the Internet-accessible destinations; and advising the user of a successful or unsuccessful match. Alternatively, a call is placed to a party which does not necessarily belong to a pre-identified group of Internet-accessible destinations. | 2012-07-05 |
20120170724 | METHOD AND SYSTEM FOR DELIVERING MESSAGES - A method and apparatus for delivering a message. A plurality of audio messages destined for a recipient is received from a corresponding plurality of senders. Each of the plurality of audio messages includes a corresponding first sender designated priority designated by the corresponding sender. Member configuration data that identifies a first recipient prioritization attribute is accessed. A prioritized list of the plurality of audio messages is generated based on both the corresponding first sender designated priority and the first recipient prioritization attribute associated with the each of the plurality of audio messages. A subset of the plurality of audio messages is provided to a client device associated with the recipient based on the prioritized list. | 2012-07-05 |
20120170725 | Communicating Information Pertaining to Cancelling of Forked Call Requests - Multiple instances of an incoming call in a unified communication system capable of communicating through multiple networks are provided to devices and/or applications associated with the called party. Upon acceptance or a global rejection of the incoming call through one of the end devices/applications, the remainder are provided a cancellation notice for the forked call request that includes information associated with which end device took the action, what type of action was taken, whether the action was based on automatic policy implementation. | 2012-07-05 |
20120170726 | Media Link - Two or more users can be connected over the internet or through the world-wide web or other network without the users exchanging access numbers and/or user identifications. Moreover an instant voice communication channel may be established based on the caller's device identification number or electronic signature without the need to create dedicated telephony paths or user names/passwords. | 2012-07-05 |
20120170727 | Method and Apparatus for Presenting a User Interface - A system that incorporates teachings of the present disclosure may include, for example, utilizing a first communication device for identifying a user interface adaptation according to operating characteristics of a second display of a second communication device, identifying first and second user interface portions according to the user interface adaptation, presenting the first user interface portion at a first display of the first communication device, transmitting the second user interface portion to the second communication device for presentation at the second display of the second communication device, and enabling user interface navigation that includes the first and second user interface portions as a single user interface based on user inputs received at the first communication device. Other embodiments are disclosed. | 2012-07-05 |
20120170728 | Voice-Enabling Kiosks with Mobile Devices - A kiosk is voice-enabled using a mobile device of a customer. The kiosk receives customer identification information identifying the customer and determines conference call information based on the customer identification information. The conference call information enables a conference call to be established between a mobile device of the customer and a call center agent associated with the kiosk. | 2012-07-05 |
20120170729 | Unrestricted Calling Circle For Telephone Service - Subscribers of a telephone service can define a calling circle, which includes a group of other telephone subscribers with whom the subscriber receives preferential billing rates. The members of the calling circle may include customers of a telephone service provider other than the subscriber's telephone service provider. | 2012-07-05 |
20120170730 | SYSTEM AND METHOD FOR PRODUCING AND TRANSMITTING SPEECH MESSAGES DURING VOICE CALLS OVER COMMUNICATION NETWORKS - A system and method for producing and transmitting speech messages during voice calls over communication networks is introduced. The system and method for producing and transmitting speech messages during voice calls over communication networks include an advertisement server connected to a communication network. A user uses a calling device to call the advertisement server and record advertisement in his specific voice or voice samples off which an advertisement synthesizer can generate advertisements in the user's specific voice. These advertisements are later played during voice calls between a calling device and a destination device. A billing system is used to log and bill advertisers for the advertisements played. | 2012-07-05 |
20120170731 | METHOD FOR RE-CONFIGURING A COMMUNICATIONS DEVICE - A communications device ( | 2012-07-05 |
20120170732 | Methods and Devices for Providing a Called Party's Name to a Setup Message - Disclosed are communication devices and methods of a communication devices that include accessing the contact list of the memory by the controller, initiating communication based upon the contact list input by the controller and generating by the controller, a setup message that includes communication address data populating a field for a communication address and includes identification data populating a field for identification information. The disclosed method can further include transmitting a call setup message signal of a control channel, such as a stand-alone dedicated control channel including a populated field for identification information. Moreover, additional data populating a field for additional information can also be included in the call setup message signal. The additional data can represent for example, the purpose of the call, such a personal call or a business call or any other additional information. | 2012-07-05 |
20120170733 | METHOD FOR NOTIFYING COMMUNICATION IN PROGRESS TO TERMINALS CONNECTED TO A DOMESTIC GATEWAY - A method for notifying a call involving a terminal connected to a domestic gateway, the setting up of the call involving the passage of a signaling flow through the domestic gateway, the method comprising a step of receiving a message signaling acceptance of the call, comprising the steps of: determining at least one terminal connected to the domestic gateway and not being involved in the call, and sending a call-in-progress notification message to the at least one terminal. | 2012-07-05 |
20120170734 | NOTIFICATION TO ABSENT TELECONFERENCE INVITEES - A method includes receiving an indication of an elapsed time since a scheduled teleconference meeting start and a further indication of current attendance at the teleconference;
| 2012-07-05 |
20120170735 | COMMUNICATION APPARATUS FOR RAPIDLY ADJUSTING ANALOG ECHO CANCELLATION CIRCUIT AND RELATED ECHO CANCELLATION METHOD - A communication apparatus is disclosed including: an analog-front-end circuit for receiving and processing an analog input signal; an analog-to-digital converter (ADC) coupled with the analog-front-end circuit for converting processed signal from the analog-front-end circuit into a digital input signal; and a control unit coupled with the ADC for adjusting at least one resistance and/or at least one capacitance in an analog echo cancellation circuit according to the digital input signal before the analog-front-end circuit receives a training sequence that is the first training sequence transmitted from a second communication apparatus after the second communication apparatus begins communicating with the communication apparatus. | 2012-07-05 |
20120170736 | WIRELESS TELEPHONE HAVING SUPPORT WITH BUILT-IN ANTENNA - A wireless telephone includes a support and a base unit supported by the support. The support includes an antenna and defines a number of through holes. The antenna includes a number of electrically conductive pins that are aligned with the through holes. The base unit includes a number of protruding, conductive terminals that respectively pass through the through holes and contact the electrically conductive pins to allow signals to be transmitted through the antenna. | 2012-07-05 |
20120170737 | SANITARY PHONE PATCH SYSTEM - A sanitary phone patch system for use with a telephone assembly including first and second protective pads having an adhesive backing comprising an adhesive and a peel-away sheet; and a carrying case for carrying them therein. The telephone assembly includes a telephone with a mouthpiece comprising a microphone; and an earphone acting as a receiver. The first protective pad covers the mouthpiece and the second protective pad covers the earphone. The adhesive backing is located on a bottom portion of the first and second protective pads for removeably-attaching to the mouthpiece and the earphone, respectively. The first protective pad for covering the mouthpiece and the second protective pad for covering the earphone are treated with an antibacterial solution. The protective pads for covering the mouthpiece and earphone are disposable and comprise fibrous material(s). | 2012-07-05 |
20120170738 | Methods and Apparatus in Alternate Finite Field Based Coders and Decoders - Methods and apparatus for coding and decoding n-state symbols with n≧2 and n>2 and n>3 and n>4 are provided wherein at least one implementation of an addition over an alternate finite field GF(n) and an inverter defined by a multiplication over the alternate finite field GF(n) are provided. Encoders and decoders implementing a single n-state truth table that is a truth table of an addition over an alternate finite field GF(n) modified in accordance with at least one inverter defined by a multiplication over the alternate finite field GF(n) are also provided. Encoders include scramblers, Linear Feedback Shift Register (LFSR) based encoders, sequence generator based encoders, block coders, streaming cipher encoders, transposition encoders, hopping rule encoders, Feistel network based encoders, check symbol based encoders, Hamming coder, error correcting encoders, encipherment encoders, Elliptic Curve Coding encoders and all corresponding decoders. Systems applying encoders and decoders also are provided. | 2012-07-05 |
20120170739 | METHOD OF DIVERSIFICATION OF A ROUND FUNCTION OF AN ENCRYPTION ALGORITHM - A method of diversification of an iterative function of an encryption algorithm. During an iteration at least one parameter other than an encryption key and an input message is modified. It is particularly advantageous that the encryption algorithm is the Advanced Encryption Standard. | 2012-07-05 |
20120170740 | CONTENT PROTECTION APPARATUS AND CONTENT ENCRYPTION AND DECRYPTION APPARATUS USING WHITE-BOX ENCRYPTION TABLE - A content protection apparatus using a white-box encryption table includes: a random number generation unit for generating a random number; a white-box encryption table for encrypting the random number and user information provided from a user to generate an encrypted output value; and an operation unit for performing an operation between the encrypted output value and data inputted from an outside to encrypt or decrypt the data. | 2012-07-05 |
20120170741 | SECURE LIVE TELEVISION STREAMING - A client device implements a media player and a proxy application. The media player controls playback of media content on the client device. The proxy application is implemented to request a playlist from a media server, where the playlist corresponds to the media content. The proxy application receives the playlist from the media server, and the playlist includes encryption key reference parameters to obtain an encryption key. The proxy application modifies the playlist to include local encryption key access parameters for the media player, and the modified playlist is communicated to the media player. The proxy application can then receive a request for the encryption key from the media player that utilizes the local encryption key access parameters included in the modified playlist, and the proxy application securely communicates the encryption key to the media player. | 2012-07-05 |
20120170742 | METHOD TO DE-CORRELATE ELECTRIC SIGNALS EMITTED BY AN IC CARD - A method is to de-correlate electric signals emitted by an IC Card during computations as well as sensitive data involved in such computations. The method includes executing functions introducing respective electric signals which do not involve the sensitive data. Each of the functions is triggered by a timer having a value which is different at each step of executing the functions. | 2012-07-05 |
20120170743 | METHODS FOR ESTABLISHING A SECURE POINT-TO-POINT CALL ON A TRUNKED NETWORK - Methods for establishing secure point-to-point communications in a trunked radio system include receiving, at a trunking controller, a request from a source endpoint for a traffic channel for confidential communications between the source endpoint and a destination endpoint using a shared unique first symmetric key. The trunking controller provides keying material related to the symmetric key over the secured control channel to at least one of the source or destination endpoints and assigns a traffic channel. Moreover, in response to the request, the controller assigns a traffic channel. The keying material enables the unique first symmetric key to be securely established between the source and destination endpoints. | 2012-07-05 |
20120170744 | Mobile Communication Devices and Deciphering Methods - A wireless communications device with a wireless module and a controller module is provided. The wireless module is arranged for performing wireless transmission and reception to and from a service network. The controller module is arranged for receiving a first ciphered data packet from the service network via the wireless module, and deciphering the first ciphered data packet according to a first deciphering parameter. Also, the controller module is arranged for deciphering the first ciphered data packet according to a second deciphering parameter in response to unsuccessful deciphering of the first ciphered data packet according to the first deciphering parameter. Particularly, the second deciphering parameter is for deciphering a second ciphered data packet received prior to the first ciphered data packet from the service network. | 2012-07-05 |
20120170745 | Method and device for encrypting user identity during paging procedure - The disclosure discloses a method and device for encrypting a subscriber identity during a paging procedure, which are particularly adapted to the paging performed by an MME using an IMSI. The method includes: A, using a key generated by the subscriber identity of the called UE to encrypt data Y which is obtained on the basis of the subscriber identity, then performing paging using a cipher text; and B, after the called UE receives the paging, determining by the called UE whether the cipher text is included, and if the cipher text is included, regarding itself as the called UE. In the first preferred embodiment, the data Y is the subscriber identity; in the second preferred embodiment, the data Y is the data combined by the subscriber identity and the random data X, and the random data X is sent along with the cipher text during the paging; in the third preferred embodiment, the data Y is the data combined by the subscriber identity and the random data Z, and the data Y contains the subscriber identity at a specific location, when receiving the paging, the UE performs decryption using the subscriber identity and determines whether the decrypted plaintext contains the subscriber identity at a location the same as the specific location to determine whether the paging is for itself. | 2012-07-05 |
20120170746 | Method, Network Element, and Mobile Station for Negotiating Encryption Algorithms - A method, network element, and mobile station (MS) are disclosed. The method includes: obtaining information that a plug-in card of the MS does not support a first encryption algorithm; deleting the first encryption algorithm from an encryption algorithm list permitted by a core network element according to the information that the plug-in card of the MS does not support the first encryption algorithm; sending the encryption algorithm list excluding the first encryption algorithm to an access network element, so that the access network element selects an encryption algorithm according to the encryption algorithm list excluding the first encryption algorithm and the MS capability information sent from the MS and sends the selected encryption algorithm to the MS. By using the method, network element, and MS, errors due to the fact that the plug-in card of the MS does not support an encryption algorithm may be avoided during the encryption process. | 2012-07-05 |
20120170747 | METHOD AND SYSTEM FOR PROTECTING BROADCAST SERVICE/CONTENT IN A MOBILE BROADCAST SYSTEM, AND METHOD FOR GENERATING SHORT TERM KEY MESSAGE THREFOR - A system and method are provided for generating a Short Term Key Message (STKM) for protection of a broadcast service being broadcasted to a terminal in a mobile broadcast system. The method includes transmitting, by a Broadcast Service Subscription Management (BSM) for managing subscription information, at least one key information for authentication of the broadcast service to a Broadcast Service Distribution/Adaptation (BSD/A) for transmitting the broadcast service, generating, by the BSD/A, a Traffic Encryption Key (TEK) for deciphering of the broadcast service in the terminal and inserting the TEK into a partially created STKM, and performing, by the BSD/A, Message Authentication Code (MAC) processing on the TEK-inserted STKM using the at least one key information, thereby generating a completed STKM. | 2012-07-05 |
20120170748 | METHOD AND SYSTEM FOR PROTECTING BROADCAST SERVICE/CONTENT IN A MOBILE BROADCAST SYSTEM, AND METHOD FOR GENERATING SHORT TERM KEY MESSAGE THEREFOR - A terminal and method for receiving a broadcast service by the terminal in a broadcast system are provided. The method includes performing a registration procedure for subscription and reception of the broadcast service through a Browser And Content Mobile Broadcast (BSCAST) Subscription Management (BSM) responsible for managing subscription information; receiving a Long Term Key Message (LTKM), including key information for encryption of the broadcast service, generated from the BSM; receiving a completed Short Term Key Message (STKM), the completed STKM being generated by performing Message Authentication Code (MAC) processing on a partially created STKM; receiving, from a Broadcast Service Distribution/Adaptation (BSD/A) which is responsible for transmitting the broadcast service, an encrypted broadcast service which is encrypted by a Traffic Encryption Key (TEK) for deciphering the broadcast service; and deciphering the encrypted broadcast service by the TEK obtained using the LTKM and the completed STKM. | 2012-07-05 |
20120170749 | SECURE MANAGEMENT OF KEYS IN A KEY REPOSITORY - A method, system or computer usable program product for managing keys in a computer memory including receiving a request to store a first key to a first key repository, storing the first key to a second key repository in response to the request, and storing the first key from the second key repository to the first key repository within said computer memory based on a predetermined periodicity. | 2012-07-05 |
20120170750 | SYSTEMS AND METHODS FOR MANAGING CRYPTOGRAPHIC KEYS - A common interface for managing cryptographic keys is provided. A request to manage a cryptographic key may be received in a first interface format, translated to a common interface format, and then executed remotely from the first interface. Return arguments may then be translated from the common interface format to a format compatible with the first interface and communicated securely to the first interface. The cryptographic keys may be used in connection with a secure data parser that secures data by randomly distributing data within a data set into two or more shares. | 2012-07-05 |
20120170751 | CRYPTOGRAPHIC COMMUNICATION WITH MOBILE DEVICES - A mobile device ( | 2012-07-05 |
20120170752 | BROADCAST ENCRYPTION BASED MEDIA KEY BLOCK SECURITY CLASS-BASED SIGNING - Provided are techniques for verifying, by a first device, that a management key block of a second device is valid. A management key block that includes a plurality of verification data, each of the plurality associated with a plurality of security classes ranked from a high to low, is generated. The first device, which is associated with a security class that is higher than a security class associated with the second device, verifies a management key block of the second device by calculating a management key precursor associated with the higher security class and verifying verification data associated with the higher security class. In this manner, the second device is unable to pass an unauthorized, or “spoofed,” management key block. | 2012-07-05 |
20120170753 | MANAGEMENT OF SSL CERTIFICATE ESCROW - Methods and systems for providing a secure SSL certificate escrow service comprise: providing a secure upload webpage for a private key holder to upload an encrypted copy of a private key; receiving the encrypted copy of the private key from the private key holder via the secure upload webpage; storing the encrypted copy of the private key in memory; providing a secure decryption webpage for the private key holder to enable the private key escrow service to decrypt the private key; receiving an instruction to decrypt the private key from the private key holder through the secure decryption webpage; and decrypting the private key in response to the instruction to decrypt the private key. | 2012-07-05 |
20120170754 | METHOD FOR DETECTING THE SCRAMBLING OF A RADIOCOMMUNICATION NETWORK, AND CORRESPONDING STORAGE MEANS AND CIRCUIT - A method is provided for detecting scrambling of a radiocommunication network. The method is applied by a radiocommunication circuit capable of being connected to the network by being synchronized on a radiocommunication channel. The method includes a final detection phase, having the following steps: detection of verification of the following final condition: there are N radiocommunication channels on which the radiocommunication circuit cannot be synchronized despite detection of a power level normally sufficient for being synchronized, where N>2; and if the final condition is verified, generation of a final scrambling signal with a probability of scrambling equal to 100%. The method also includes at least one intermediate detection phase, having the following steps: detection of verification of at least one intermediate condition; and if the at least one intermediate condition is verified, generation of an intermediate scrambling signal with a probability of scrambling of less than 100%. | 2012-07-05 |
20120170755 | SYSTEMS AND METHODS FOR STEREO ECHO CANCELLATION - Acoustic echoes in communications systems are distracting and undesirable. Acoustic echoes occur in communications systems where sound produced by a speaker is picked up by a microphone in a communications system. In a stereo playback environment, echo cancellation techniques become more complicated. Echo cancellation can be performed by performing echo cancellation on a center signal, which is the sum of a left channel signal and the right channel signal, or left signal and a difference signal, which is the difference of the right channel signal and the left channel signal. The adaptation rates of the two echo cancellers meet certain constraints to prevent degeneracies in the echo cancellation system. | 2012-07-05 |
20120170756 | IMMERSIVE AUDIO RENDERING SYSTEM - A depth processing system can employ stereo speakers to achieve immersive effects. The depth processing system can advantageously manipulate phase and/or amplitude information to render audio along a listener's median plane, thereby rendering audio along varying depths. In one embodiment, the depth processing system analyzes left and right stereo input signals to infer depth, which may change over time. The depth processing system can then vary the phase and/or amplitude decorrelation between the audio signals over time to enhance the sense of depth already present in the audio signals, thereby creating an immersive depth effect. | 2012-07-05 |
20120170757 | IMMERSIVE AUDIO RENDERING SYSTEM - A depth processing system can employ stereo speakers to achieve immersive effects. The depth processing system can advantageously manipulate phase and/or amplitude information to render audio along a listener's median plane, thereby rendering audio along varying depths. In one embodiment, the depth processing system analyzes left and right stereo input signals to infer depth, which may change over time. The depth processing system can then vary the phase and/or amplitude decorrelation between the audio signals over time to enhance the sense of depth already present in the audio signals, thereby creating an immersive depth effect. | 2012-07-05 |
20120170758 | MULTI-CHANNEL SOUND PANNER - A method and apparatus for multi-channel panning is provided. The panner can support an arbitrary number of input channels and changes to configurations to the output sound space. For example, the panner seamlessly handles changes in the number of input channels. Also, the panner supports changes to the number and positions of speakers in the output space. In one embodiment, the panner allows continuous control of attenuation and collapsing. In one embodiment, the panner keeps source channels on the periphery of the sound space when collapsing channels. In one embodiment, the panner allows control over the path by which sources collapse. | 2012-07-05 |
20120170759 | SYSTEM AND METHOD FOR ENHANCED STREAMING AUDIO - A system and method for enhancement and management of streaming audio is disclosed. In one embodiment, the system provides a client-side decoder that is compatible with numerous audio formats, so that a user can enjoy relatively high-quality audio from various sources, even from sources that do not provide multi-channel or high-quality audio data. The system and method also include a management system for managing and controlling the use of licensed signal processing software to further enhance an audio stream. In one embodiment, the management system is used to manage a signal processing module that provides psychoacoustic audio processing to create a wider soundstage, an acoustic correction process to increase the perceived height and clarity of the audio image, and bass enhancement processing to create the perception of low bass from the small speakers or headphones typically used with multi-media systems and portable audio players. | 2012-07-05 |
20120170760 | Audio Processing - A method including: determining a time difference between at least a first audio channel and a second audio channel of the same acoustic space; and enabling a corrective time shift between the first audio channel and the second audio channel when the time difference exceeds a threshold. | 2012-07-05 |
20120170761 | AUDIO QUALITY ANALYZING DEVICE, AUDIO QUALITY ANALYZING METHOD, AND PROGRAM - During audio communication between terminals, an audio quality analyzing device picks up from a network a packet containing a bit stream obtained by compression encoding of audio sent by at least one of the terminals. The device has an audio quality analyzing unit that, in addition to analyzing a header of the packet picked up, performs at least one of: an analysis of a payload header and an analysis of the bit stream contained in the payload, detects deterioration in the quality of the audio communication service, and notifies a result of the detection to an upper level device. | 2012-07-05 |
20120170762 | METHOD AND APPARATUS FOR CONTROLLING DISTRIBUTION OF SPATIAL SOUND ENERGY - A spatial sound energy (SSE) distribution control apparatus calculates filter coefficients for controlling distribution of the sound energy of an input signal, in consideration of a sound energy ratio between a reduction region for reducing transmission of a sound energy emitted through an array speaker and a concentration region for concentrating transmission of the sound energy and also in consideration of a sound energy efficiency of the concentration region. Also, the SSE distribution control apparatus determines an array size of a speaker in a case where the sound energy ratio is maximized, according to frequency variation of the input signal. | 2012-07-05 |
20120170763 | SYSTEM FOR ACTIVE NOISE CONTROL WITH AUDIO SIGNAL COMPENSATION - An active noise control system generates an anti-noise signal to drive a speaker to produce sound waves to destructively interfere with an undesired sound in a targeted space. The speaker is also driven to produce sound waves representative of a desired audio signal. Sound waves are detected in the target space and a representative signal is generated. The representative signal is combined with an audio compensation signal to remove a signal component representative of the sound waves based on the desired audio signal and generate an error signal. The active noise control adjusts the anti-noise signal based on the error signal. The active noise control system converts the sample rates of an input signal representative of the undesired sound, the desired audio signal, and the error signal. The active noise control system converts the sample rate of the anti-noise signal. | 2012-07-05 |
20120170764 | SYSTEM FOR ACTIVE NOISE CONTROL WITH AUDIO SIGNAL COMPENSATION - An active noise control system generates an anti-noise signal to drive a speaker to produce sound waves to destructively interfere with an undesired sound in a targeted space. The speaker is also driven to produce sound waves representative of a desired audio signal. Sound waves are detected in the target space and a representative signal is generated. The representative signal is combined with an audio compensation signal to remove a signal component representative of the sound waves based on the desired audio signal and generate an error signal. The active noise control adjusts the anti-noise signal based on the error signal. The active noise control system converts the sample rates of an input signal representative of the undesired sound, the desired audio signal, and the error signal. The active noise control system converts the sample rate of the anti-noise signal. | 2012-07-05 |
20120170765 | DIGITAL CIRCUIT ARRANGEMENTS FOR AMBIENT NOISE-REDUCTION - A digital circuit arrangement for an ambient noise-reduction system affording a higher degree of noise reduction than has hitherto been possible. The arrangement converts the analog signals into N-bit digital signals at sample rate f | 2012-07-05 |
20120170766 | ANC For BT Headphones - An active noise cancellation controller for performing noise attenuation in a system over a predetermined frequency range, the active noise cancellation controller comprising: a first input for receiving a reference signal indicative of a noise level; a second input for receiving an error signal indicative of a remnant noise level; an output for providing a noise cancellation signal to a system in which noise attenuation is to be performed; a fixed feedback controller having a fixed infinite impulse response filter arranged for operation on an error signal received at the second input; a fixed feedforward controller having a fixed infinite impulse response filter arranged for operation on a reference signal received at the first input; and an adaptive feedforward controller having a digital adaptive finite impulse response filter arranged for operation on a reference signal received at the first input and on an error signal received at the second input, the coefficients of the digital adaptive filter being determined by: in the frequency domain, independently generating a set of initial coefficients for each of a plurality of subbands into which the predetermined frequency range is divided, said sets of initial coefficients being generated in accordance with a predetermined adaptive algorithm; and transforming said sets of initial coefficients into the time domain for use as the said coefficients of the digital adaptive filter; wherein the fixed feedback controller, fixed feedforward controller and adaptive feedforward controller are arranged to, in use, provide a noise cancellation signal at the output in dependence on a reference signal received at the first input and an error signal received at the second input. | 2012-07-05 |
20120170767 | Processing Audio Data - Method, user terminal, communication system and computer program product for processing audio data for transmission over a network in a communication session between the user terminal and a further user terminal. Samples of audio data which have a sampling frequency and which provide a digital representation of an analog audio signal are transmitted to the further user terminal in the communication session. During the communication session, an estimate of processing resources available for processing audio data in the communication session is repeatedly determined, and the sampling frequency is dynamically adjusted during the communication session based on the determined estimate of available processing resources. | 2012-07-05 |
20120170768 | DELAY UNIT FOR A CONFERENCE AUDIO SYSTEM, METHOD FOR DELAYING AUDIO INPUT SIGNALS, COMPUTER PROGRAM AND CONFERENCE AUDIO SYSTEM - A delay unit ( | 2012-07-05 |
20120170769 | Adjusting the Loudness of an Audio Signal with Perceived Spectral Balance Preservation - The loudness of an audio signal is adjusted while reducing changes in its perceived spectral balance, using a dynamically-controllable filter having a high-frequency response characteristic and a low-frequency response characteristic, controlled by dynamically-changing information on the desired gain in each of a plurality of frequency bands of the audio signal. | 2012-07-05 |
20120170770 | CHARGE PUMP CIRCUIT - A bipolar output charge pump circuit having a network of switching paths | 2012-07-05 |