04th week of 2011 patent applcation highlights part 30 |
Patent application number | Title | Published |
20110019738 | VIDEO CODING - Pictures are coded using a coding algorithm with a variable parameter QP so that the quality of the coding varies. First ( | 2011-01-27 |
20110019739 | Method for modeling coding information of a video signal to compress/decompress the information - A method and an apparatus of decoding a video signal are provided. The present invention includes the steps of parsing first coding information indicating whether a residual data of an image block in the enhanced layer is predicted from a corresponding block in the base layer, from the bitstream of the enhanced layer, and decoding the video signal based on the first coding information. And, the step of parsing includes the step of performing modeling the first coding information based on second coding information indicating whether prediction information of the corresponding block in the base layer is used to decode the image block in the enhanced layer. Accordingly, the present invention raises efficiency of video signal processing by enabling a decoder to derive information on a prediction mode of a current block in a decoder instead of transferring the information to the decoder. | 2011-01-27 |
20110019740 | Video Decoding Method - In methods in which coding is performed by switching, per area, between a predicted image generated by an existing coding standard and an image newly generated by performing motion estimation between decoded images, it is necessary to further provide determination information as to which image is to be used, which may in some cases result in compression efficiency that is inferior to those of conventional standards depending on the input video. By determining whether a predicted image generated by an existing coding standard is to be used or an image newly generated by performing motion estimation between decoded images is to be used based on coding information within the frame to be coded or within a previously coded frame, the need for such determination information is obviated to improve compression efficiency. | 2011-01-27 |
20110019741 | IMAGE PROCESSING SYSTEM - An image processing system can quickly calculate a motion vector. The image processing system includes: a characteristic region detecting section that detects a characteristic region from each of a plurality of moving image constituting images included in a moving image; a characteristic region identifying section that identifies characteristic regions having high correlation in the plurality of moving image constituting images; a position difference calculating section that calculates a difference in position between the characteristic regions having high correlation identified by the characteristic region identifying section; a search region determining section that determines a narrower motion vector search region when a magnitude of the difference in position is smaller; and a compression section that compresses the moving image using a motion vector calculated by searching the motion vector search region determined by the search region determining section. | 2011-01-27 |
20110019742 | COMPRESSION ARTIFACT REMOVING APPARATUS AND VIDEO REPRODUCING APPARATUS - A compression artifact removing apparatus according to the present invention performs a filtering process on the target pixel, using the same filter as used for the best match pixel in the reference frame, when a scene change has not occurred in the target frame and a temporal correlation of the local area around the target pixel and the local area around its best match is high, to reduce the amount of computation. | 2011-01-27 |
20110019743 | Adaptive weighting of reference pictures in video decoding - A video decoder, encoder, and corresponding methods for processing video data for an image block and a particular reference picture index to predict the image block are disclosed that utilize adaptive weighting of reference pictures to enhance video compression, where a decoder includes a reference picture weighting factor unit for determining a weighting factor corresponding to the particular reference picture index; an encoder includes a reference picture weighting factor assignor for assigning a weighting factor corresponding to the particular reference picture index; and a method for decoding includes receiving a reference picture index with the data that corresponds to the image block, determining a weighting factor for each received reference picture index, retrieving a reference picture for each index, motion compensating the retrieved reference picture, and multiplying the motion compensated reference picture by the corresponding weighting factor to form a weighted motion compensated reference picture. | 2011-01-27 |
20110019744 | VIDEO ENCODING METHOD, VIDEO DECODING METHOD, VIDEO ENCODING PROGRAM, VIDEO DECODING PROGRAM, VIDEO ENCODING APPARATUS, AND VIDEO DECODING APPARATUS - In a video encoding method according to the present invention, an encoding mode controller | 2011-01-27 |
20110019745 | IMAGE ENCODING METHOD, IMAGE DECODING METHOD, IMAGE ENCODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE ENCODING PROGRAM, AND IMAGE DECODING PROGRAM - Image encoding apparatus 10 according to the present invention is an image encoding apparatus 10 for dividing image signals into blocks, performing an orthogonal transform of each block, reading resultant orthogonal transform coefficients to obtain a coefficient string, and performing entropy coding, which has block selector 14 for selecting a size of a block for the orthogonal transform, out of a plurality of blocks of different sizes; coefficient string divider 12 for, when a block of a size larger than a minimum size is selected by block selector 14, dividing a coefficient string in the block into a plurality of coefficient strings of a length equal to that of a coefficient string in a block of the minimum size; and encoder 13 for performing entropy coding adapted to the coefficient string in the block of the minimum size. This substantializes the image encoding apparatus capable of achieving efficient entropy coding in the orthogonal transform of variable sizes. | 2011-01-27 |
20110019746 | IMAGE DECODING METHOD, IMAGE CODING METHOD, IMAGE DECODING APPARATUS, AND IMAGE CODING APPARATUS - To provide an image decoding method allowing decoding of a multiview video even when no prefix NAL units are used. The image decoding method includes: parsing NAL units of a base view; decoding an image of the base view; parsing MVC extension parameters of a non-base view; searching whether or not prefix NAL units for a base view are present; either computing MVC extension parameters for the base view when no prefix NAL units are present or parsing the MVC extension parameters of the base view when prefix NAL units for the base view are present; and decoding the non-base view using the MVC extension parameters of the base view and the MVC extension parameters of the non-base view. | 2011-01-27 |
20110019747 | Picture decoding method - The invention relates to method for buffering encoded pictures. The method includes an encoding step for forming encoded pictures in an encoder. The method also includes a transmission step for transmitting said encoded pictures to a decoder as transmission units, a buffering step for buffering transmission units transmitted to the decoder in a buffer, and a decoding step for decoding the encoded pictures for forming decoded pictures. The buffer size is defined so that the total size of at least two transmission units is defined and the maximum buffer size is defined on the basis of the total size. | 2011-01-27 |
20110019748 | SIGNAL AND DEVICES FOR WIRED NETWORKS - A signal for use on a wired network interconnecting electronic devices, comprising: a base voltage for conveying power to the electronic devices; a pulsed voltage signal bearing coded information for transfer between the electronic devices; and a digital signal superimposed onto selected portions of the pulsed voltage signal, wherein the digital signal comprises a carrier signal modulated by a data signal for transfer between the electronic devices. This is used in fire alarm networks, for example, to convey multimedia or other data such as control signals, whilst maintaining compatibility with existing protocols using the pulsed voltage signal. | 2011-01-27 |
20110019749 | METHOD AND APPARATUS FOR DELAY SPREAD ESTIMATION - Methods for calculating a delay spread estimate in an OFDM-receiver are described, along with computer program products and electronic apparatuses for performing the methods. The methods comprise determining a position of an FFT-window in relation to one or more OFDM-symbols of a received OFDM-signal and using the determined position to obtain a first OFDM-symbol from the received OFDM-signal. An FFT is applied to the first OFDM-symbol to produce an FFT-output signal. A frequency dependent phase rotation component of the FFT-output signal is determined and removed from the FFT-output signal. A number of zero-crossings of at least one of a real component and an imaginary component of a transfer function of a channel, over which the received OFDM-signal has been transmitted, derived from the FFT-output signal where the frequency dependent phase rotation component has been removed is determined, and a delay spread estimate is calculated based on the determined number of zero-crossings. | 2011-01-27 |
20110019750 | MAC EXTENSIONS FOR SMART ANTENNA SUPPORT - Apparatus and methods implement aggregation frames and allocation frames. The aggregation frames include a plurality of MSDUs or fragments thereof aggregated or otherwise combined together. An aggregation frame makes more efficient use of the wireless communication resources. The allocation frame defines a plurality of time intervals. The allocation frame specifies a pair of stations that are permitted to communicate with each other during each time interval as well as the antenna configuration to be used for the communication. This permits stations to know ahead of time when they are to communicate, with which other stations and the antenna configuration that should be used. A buffered traffic field can also be added to the frames to specify how much data remains to be transmitted following the current frame. This enables network traffic to be scheduled more effectively. | 2011-01-27 |
20110019751 | ADAPTIVE ALLOCATION FOR VARIABLE BANDWIDTH MULTICARRIER COMMUNICATION - Data is distributed among the channels of an asynchronous data subscriber loop (ADSL) communications system in accordance with an adaptive algorithm which from time to time measures the signal to noise ratio of the various channels and finds a margin for each channel dependent on achievement (where possible) of a given bit error rate and a desired data transmission rate. The margin distribution is achieved by augmenting the constellation signal to noise ratio to enhance computational efficiency and allow redetermination of bit allocation tables during transmission as necessary. Pairs of bit allocation tables are maintained at the transmitter and receiver and one table of each pair at the transmitter and receiver is updated while the other pair is in use for controlling communication. | 2011-01-27 |
20110019752 | METHOD FOR MAPPING PHYSICAL RANDOM ACCESS CHANNELS - A method for mapping physical random access channel (PRACHs) is provided in the present invention, wherein W PRACHs have the same time domain location and the serial number of each PRACH is w=0, 1, 2, . . . , W−1. The method includes: mapping the PRACHs with the odd w numbers from high frequency to low frequency, or from low frequency to high frequency in a usable frequency band, mapping the PRACHs with the even w numbers from low frequency to high frequency, or from high frequency to low frequency in the usable frequency band. One PRACH occupies 6 continuous resource blocks in the frequency domain, and the frequency bands occupied by the two adjacent PRACHs in the frequency domain do not overlap, furthermore the same mapping process is used for each version number r. The PRACHs which need to be processed by the same station could be distributed evenly in the time domain, and at the same time the inter-cell interference of the second type PRACH could be reduced to the greatest extent through the present invention. | 2011-01-27 |
20110019753 | APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL AND METHOD OF TRANSMITTING AND RECEIVING A SIGNAL - A method of transmitting and receiving a signal and an apparatus for transmitting and receiving a signal are disclosed. The method includes receiving the signal of a first frequency band, obtaining layer-1 information from a preamble of the first time-frequency slicing (TFS) signal frame of the received signal, said layer-1 information including a radio frequency (RF) channel identifier of a first TFS signal frame including the PLP in a super frame of TFS structure, and an identifier of a starting radio frequency (RF) channel which can receive the PLP in the TFS signal frame, parsing the TFS signal frame using the layer-1 information and obtaining a physical layer pipe (PLP) of the TFS signal frame, and converting the PLP to a service stream. | 2011-01-27 |
20110019754 | POWER CONTROL IN A WIRELESS COMMUNICATION SYSTEM - A method of power control in a wireless communication system wherein blocks are transmitted from a transmitter to a receiver on multiple wireless transport channels. The method comprises comparing a target signal quality value with a received signal quality value and providing the results of the comparing step to the transmitter to adjust transmit power, and a mechanism for controlling the target signal quality for transport channels that have been inactive for a predefined period. A corresponding receiver is also provided. | 2011-01-27 |
20110019755 | DATA TRANSMISSION METHOD AND APPARATUS BASED ON JOINT SPACE DIVISION MULTIPLE ACCESS TECHNOLOGY IN COLLABORATIVE DOWNLINK MIMO SYSTEM - A channel condition information feedback method and apparatus are provided for a collaborative wireless communication network using a multiple input multiple output antenna system. The apparatus includes a downlink channel estimator that estimates channels of adjacent base stations, groups base stations from among the adjacent base stations that are capable of collaborative communication, and obtains a maximum singular vector to base stations belonged to a same group; and a vector selector which selects a weight io vector most accurately representing the maximum singular vector and a complex variable most accurately representing the maximum singular vector in combination with the weight vector. | 2011-01-27 |
20110019756 | METHOD OF TRANSMITTING RLC DATA - A method of transmitting data is performed by detecting a triggering of a first event, further detecting a triggering of a second event until a third event occurs, and performing a first action if the triggering of the second event is not detected, wherein the first action is based on the detected first event. The first event may be the expiry of a poll retransmit timer, the second event may be a detecting whether a ACK or NACK is not received, the third event may be a next transmission opportunity, and the first action may be setting a polling bit of a data PDU to be transmitted. | 2011-01-27 |
20110019757 | COMMUNICATION SYSTEM, RECEPTION DEVICE, AND COMMUNICATION METHOD - A reception device which communicates with a transmission device including multiple transmission antennas, the reception device including: at least one reception antenna which receives multiple transmission signals transmitted by the transmission device from the multiple transmission antennas; a propagation channel response estimation unit which estimates propagation channel responses among the multiple transmission antennas and the reception antenna; a block division unit which divides a reception signal of at least one of the reception antennas into multiple blocks based on a multipath; and a transmission signal detection unit which detects the transmission signals transmitted by the transmission device based on the reception signal divided by the block division unit into the multiple blocks and the propagation channel responses estimated by the propagation channel response estimation unit. The transmission signal detection unit includes: an interference cancellation unit which generates and removes an interference replica; and a signal separation unit which separates a signal into which a transmission signal is multiplexed from an output of the interference cancellation unit. | 2011-01-27 |
20110019758 | ALAMOUTI ENCODING AND DECODING - The present invention relates to the fields of transmit diversity, receive diversity and space-time block codes. The present invention especially relates to a method of transmitting data from a transmitter to a receiver connected by a communication channel, a transmitter, a receiver and a communication system comprising at least one transmitter and/or at least one receiver. The receiver according to the present invention is a receiver for receiving one or more first signals during a first transmission period and for receiving one or more second signals during a second transmission period, the one or more first signals being based on a first symbol transmitted on a first transmit path during said first transmission period and a second symbol transmitted on a second transmit path during said first transmission period, the one or more second signals being based on a third symbol transmitted on said first transmit path during said second transmission period and a fourth symbol transmitted on said second transmit path during said second transmission period, whereby said first symbol and said fourth symbol carry the same information, said second symbol and said third symbol carry the same information, the information carried by each of said first and forth symbols corresponds to a first input symbol and the information carried by each of said second and third symbols corresponds to a second input symbol, the receiver comprising a decoder adapted to decode the two input symbols based on said one or more first signals and/or is adapted to decode said two input symbols based on said one or more second signals. | 2011-01-27 |
20110019759 | ESTIMATING SPATIAL EXPANSION MATRIX IN A MIMO WIRELESS COMMUNICATION SYSTEM - Techniques are provided to derive the spatial expansion matrix used when one wireless communication device sends a transmission with a number of spatial streams less than the number of its transmit antennas to another wireless communication device. These techniques involve, at the receiving wireless communication device, generating channel estimate information for received transmissions sent with different numbers of spatial streams and to determine when sufficient information is available to estimate a spatial expansion matrix for different spatial expansion scenarios. | 2011-01-27 |
20110019760 | Methods and Systems for Reducing Supply and Termination Noise - A transmitter expresses continuous-time signals on alternate, parallel channels with reference to different supply voltages such that the signals on alternate channels have different common-mode voltages. At the transmitter, expressing the symbols using alternate supply voltages limits the maximum supply current used to express the signals and to transition between adjacent symbol sets. Limiting supply current ameliorates problems associated with simultaneous switching noise (SSN). At the receiver, the different common-mode voltages tend to balance the current to and from termination nodes, and consequently place reduced stress on a reference voltage. Providing different common-mode voltages on alternate channels may additionally reduce cross-talk between channels. | 2011-01-27 |
20110019761 | SYSTEM, APPARATUS, METHOD, AND PROGRAM FOR SIGNAL ANALYSIS CONTROL AND SIGNAL CONTROL - Disclosed is a signal control method that is characterized by receiving a first signal, a second signal comprising multiple components, component information indicating the relationship between the components, and analysis control information comprising information indicating the relationship between the components and the second signal. The signal control method is further characterized by controlling the first signal or the second signal on the basis of the components and the analysis control information. | 2011-01-27 |
20110019762 | INFORMATION TRANSMISSION SYSTEM, INFORMATION TRANSMISSION DEVICE, INFORMATION TRANSMISSION METHOD, AND COMPUTER READABLE MEDIUM STORING A PROGRAM FOR INFORMATION TRANSMISSION - The present invention provides a information transmission device including: a transmission section that transmits information to a first transmission path that transmit information serially; a reception section that receives information from a second transmission path; a waveform shaping section that, according to setting information, shapes at least one of a signal waveform of the information for transmission, and/or a signal waveform of the information for reception; and a controller that, when establishing communication, controls the transmission section to transmit predetermined first information that requests communication establishment, and effects control to change the first setting information and controls the transmission section to re-transmit the first setting information when the reception section has not received the first information within an interval that from the beginning of transmission of the first information until a predetermined duration required for communication establishment has elapsed. | 2011-01-27 |
20110019763 | USB 2.0 HS Voltage-Mode Transmitter With Tuned Termination Resistance - A high-speed universal serial bus (USB) transceiver includes a voltage-mode architecture for generating a USB signal. The voltage mode architecture reduces power consumption by reducing the current requirements for high-speed USB communications. The USB transceiver can include a reference voltage generator, a resistive element, and a switching element for completing and breaking a circuit including the reference voltage generator, the resistive element, and a data pin of a USB port to generate half of the differential USB signal (e.g., the D+ signal). A similar circuit can be used to generate the other half of the differential USB signal (i.e., the D− signal). The resistive element can be a set of parallel resistors in the transceiver, with the set of parallel resistors being specifically selected from a larger population of resistors to provide the specified resistance (45 Ω±10%) in the USB transceiver. | 2011-01-27 |
20110019764 | Method of Data Transmission in Multiple Antenna System - A method of data transmission includes determining the number of layers, generating mapping symbols by mapping modulation symbols for a first codeword and modulation symbols for a second codeword to each layer, and transmitting the mapping symbols through a plurality of antennas. At least one of the first codeword and the second codeword is mapped to at least 3 layers and the number of layers is larger than 3. | 2011-01-27 |
20110019765 | METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PROVIDING A DATA ENCODING/DECODING SCHEME - An apparatus for providing a data encoding scheme may include an encoder. The encoder may be configured to determine, for a digital input value comprising a particular number of bits, whether more than half of the bits of the digital input value have a high value. The encoder may be further configured to encode the digital input value by inverting each of the bits of the digital input value in response to a determination that more than half of the bits of the digital input value have the high value. Corresponding method and computer program product, and a decoder and decoding method are also provided. | 2011-01-27 |
20110019766 | Process and Device for Encoding, and Associated Electronic System and Storage Medium - The invention relates to an encoder ( | 2011-01-27 |
20110019767 | Phase-Locked Loop Modulation - A phase-locked loop having: an oscillator for forming an oscillating output signal; a frequency divider connected to receive the output of the oscillator and frequency divide it by a value dependent on a division control signal; and a phase comparator for comparing the phase of the divided signal and a reference signal to generate a control signal, the operation of the oscillator being dependent on the control signal; the output data to form a divided signal a division ratio controller configured to, when clocked by an input signal, generate a series of output data for forming the division control signal; the phase-locked loop having: a first mode of operation in which the frequency divider is operable to frequency divide the output of the oscillator by a value dependent on the output of the division ratio controller; and a second mode of operation in which the frequency divider is not operable to frequency divide the output of the oscillator by a value dependent on the output of the division ratio controller, and the division ratio controller is clocked by a signal that is independent of the output of the oscillator. | 2011-01-27 |
20110019768 | METHOD AND APPARATUS FOR SPECTRALLY EFFICIENT LINK ADAPTATION USING HARQ IN OFDMA SYSTEMS - A method increases spectral efficiency in a communication system. The communication system includes at least one mobile station and is capable of transmitting messages encoded according to a plurality of available modulation coding schemes (“MCSs”). Each available MCS includes a modulation scheme and an effective coding rate. The MCSs are indexed according to increasing complexity. A signal-to-interference ratio (“SINR”) is determined which is sufficient to satisfy a predetermined frame error rate (“FER”). A first MCS and a corresponding amount of transmissions needed to satisfy the predetermined FER at the SINR using the first MCS are determined. The first MCS has a higher effective coding rate than a second MCS. The second MCS sufficiently satisfies the predetermined FER at the SINR in a single transmission. A message encoded according to the first MCS is transmitted through the communication system using hybrid automatic repeat request (“HARQ”) | 2011-01-27 |
20110019769 | MULTI STAGE CODE GENERATOR AND DECODER FOR COMMUNICATION SYSTEMS - A method of encoding data for transmission from a source to a destination over a communications channel is provided. A plurality of redundant symbols are generated from an ordered set of input symbols to be transmitted. A plurality of output symbols are generated from a combined set of symbols including the input symbols and the redundant symbols, wherein the number of possible output symbols is much larger than the number of symbols in the combined set of symbols, wherein at least one output symbol is generated from more than one symbol in the combined set of symbols and from less than all of the symbols in the combined set of symbols, and such that the ordered set of input symbols can be regenerated to a desired degree of accuracy from any predetermined number, N, of the output symbols. | 2011-01-27 |
20110019770 | METHODS AND APPARATUS FOR MEASURING, COMMUNICATING AND/OR USING INTERFERENCE INFORMATION - Wireless communications methods and apparatus are described. A communications apparatus, e.g., a base station, measures interference information, e.g., other sector interference information. The communications apparatus generates a preamble which includes a plurality of pilot symbols and at least one of the pilot symbols includes interference information. In some embodiments, the preamble is part of a superframe structure, e.g., a recurring superframe structure, including the preamble and a plurality of frames, at least some of the frames used to convey traffic data. The communications apparatus transmits the preamble, thus broadcasting the interference information to access terminals in the vicinity. An access terminal receives the preamble including a plurality of pilot signals, at least one of the pilot signals including interference information. The access terminal recovers the interference information from the received preamble and controls signal transmission based on the recovered interference information. | 2011-01-27 |
20110019771 | Spatio-Temporal Processing for Communication - A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna elements, or multiple polarizations of a single transmitter antenna element and/or single receiver antenna element. The system is not restricted to wireless contexts and may exploit any channel having multiple inputs or multiple outputs and certain other characteristics. Multi-path effects in a transmission medium cause a multiplicative increase in capacity. | 2011-01-27 |
20110019772 | DEVICE AND METHOD FOR MOVING A RECEIVE WINDOW IN A RADIO ACCESS NETWORK - A method of moving a receiving window in a wireless mobile communication system, wherein the AM RLC of the transmitting side sends information of the last discarded SDU regardless of continuity of the discarded SDUs. The AM RLC of the receiving side checks whether all SDUs from the start point of the receiving window up to the last discarded SDU are successfully received, delivers the SDUs that are successfully received to an upper layer, and discard only those SDUs that are not successfully received. | 2011-01-27 |
20110019773 | SIGNAL PROCESSING CIRCUIT AND METHOD WITH FREQUENCY UP-AND DOWN-CONVERSION - A signal processing circuit comprises a frequency up-conversion circuit ( | 2011-01-27 |
20110019774 | Wireless communication apparatus and wireless communication method - A wireless communication apparatus includes a wireless processing unit for performing communication by wireless and an application processing unit for executing an application. The wireless processing unit of the wireless communication apparatus detects reception of wireless function update information for updating a function of the wireless processing unit when update information for updating any function of the wireless communication apparatus is received. After that, the wireless processing unit updates the function of the wireless processing unit, if reception of wireless function update information is detected, by performing an update process specified in the wireless function update information without involving the application processing unit. | 2011-01-27 |
20110019775 | METHOD AND SYSTEMS FOR RECEIVING PLURAL INFORMATIONS FLOWS IN A MIMO SYSTEM - In a communication system, such as a Multiple Input Multiple Output system operating in a spatial multiplexing mode, for use, e.g., in a WLAN or HSPDA device, a plurality of information flows are received via a set of receive antennas by deriving from at least some, and possibly all, of the receive antennas, respective RF signals, and producing from the RF signals thus derived, a plurality of receive signals, each receive signal to be demodulated to recover one of the information flows transmitted. The receive signals are produced as combinations of the RF signals having applied thereto relative RF phase shift weights. | 2011-01-27 |
20110019776 | METHOD AND APPARATUS FOR OBTAINING PORT INDEX INFORMATION - A method and apparatus are described for obtaining port index information. In one scenario, downlink (DL) control information (DCI) is received that includes new data indicator (NDI). The NDI has a value indicating an antenna port for single-port transmission. In response to receiving the DCI, a single-port transmission associated with the indicated antenna port is received. The NDI may be associated with a disabled codeword and the DCI may include a second NDI. The DCI may be received over a physical downlink control channel (PDCCH). The DCI may include a resource block (RB) assignment information field (IF), a hybrid automatic repeat request (HARQ) process identity (ID) IF, a transmit power control (TPC) IF and, for each of a plurality of transport blocks, a modulation and coding scheme (MCS), an NDI and a redundancy version (RV). | 2011-01-27 |
20110019777 | APPARATUS, AND ASSOCIATED METHOD, FOR DETECTING VALUES OF A SPACE-TIME BLOCK CODE USING SELECTIVE DECISION-FEEDBACK DETECTION - A selective decision-feedback detector for the space-time block code which provides both diversity and spatial multiplexing. To detect a received code block of transmitted symbols, the channel matrix is properly preprocessed with the real and imaginary parts decoupled, and the selective decision-feedback detector makes multiple decisions on the same block upon differently permuted channel matrix and generates multiple candidates for the results. The indicators of the decision errors associated with the candidates are compared, and one of the candidates with the minimum error is selected by a selector as the decided symbols to be used for further processing at a receiving station. | 2011-01-27 |
20110019778 | Estimating Frequency Offset at a Subscriber Station Receiver - A method and system of estimating frequency offset at a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, in which the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a subset of the plurality of base stations. The subscriber station selects at least one pair of multi-carrier symbols of the composite signal, wherein each of the at least one pair of multi-carrier symbols include a plurality of pilot sub-carriers. The subscriber station selects a subset of the plurality of pilot sub-carriers of the at least one pair of multi-carrier symbols based on transmit pilot symbols of the pilot sub-carriers of the multi-carrier signals transmitted by the subset of the plurality of base stations. The frequency offset is estimated based on a conjugate product between received symbols across at least one pair of multi-carrier symbols of each of the pilot sub-carriers of the selected subset of the plurality of pilot sub-carriers. | 2011-01-27 |
20110019779 | RADIO APPARATUS - An RF unit receives multicarrier signals via a plurality of antennas. A division unit divides the multicarrier signals received into a plurality of groups in the frequency domain. The division unit acquires the channel quality for each subcarrier, contained in the multicarrier signal, in the frequency domain, and defines the plurality of groups according to the channel quality. The processing unit performs adaptive array signal processing for each of the divided groups. | 2011-01-27 |
20110019780 | PROCESSING DIGITAL SAMPLES IN A WIRELESS RECEIVER - A system and method for processing digital samples from a signal received via a wireless transmission channel in a wireless communications system. The method comprises: comparing a target signal quality value with an estimated received signal quality value; detecting if the estimated received signal quality value exceeds the target signal quality value for a period; and selecting one of a plurality of processing routines of differing sensitivities for processing the digital samples. | 2011-01-27 |
20110019781 | DEVICE AND METHOD FOR CALCULATING BACKWARD STATE METRICS OF A TRELLIS - A method for calculating backward state metrics of a trellis, the method includes: performing a radix-K calculation of backward state matrices of multiple states of at least one time instance of a trellis; and performing a radix-J calculation of backward state matrices of multiple states of at least one other time instance of the trellis; wherein K differs from J. | 2011-01-27 |
20110019782 | SIGNAL PROCESSING APPARATUS AND METHOD - Disclosed herein is a signal processing apparatus, including: a computation device operable to perform transform computation adapted to Fourier-transform a time domain OFDM i.e., Orthogonal Frequency Division Multiplexing signal into a frequency domain OFDM signal; a processing device operable to perform carrier frequency offset detection adapted to detect an estimated carrier frequency offset that is an error of a carrier used for demodulation of the OFDM signal; and a carrier frequency offset correction device operable to perform carrier frequency offset correction adapted to correct the carrier frequency offset of the frequency domain OFDM signal in accordance with the estimated carrier frequency offset. | 2011-01-27 |
20110019783 | RECEIVER AND ELECTRONIC DEVICE USING THE SAME - A receiver includes an oscillator for generating a local oscillator signal, a frequency converter for heterodyning a received signal of one frequency band or a plurality of frequency bands into an intermediate frequency (IF) signals with using the local oscillator signal, a filter connected to an output of the frequency converter and having a cut-off frequency changeable, an analog-digital (AD) converter connected to an output of the filter to convert an analog signal of one frequency band or a plurality of frequency bands into a digital signal, a pre-stage detector connected to an output of the AD converter or connected between the filter and the AD converter to detect a signal level, and a controller for controlling the cut-off frequency of the filter based on the signal level detected by the pre-stage detector. | 2011-01-27 |
20110019784 | RECEPTION APPARATUS, RECEPTION METHOD, PROGRAM, AND RECEPTION SYSTEM - Disclosed herein is a reception apparatus including: an acquisition section configured to acquire an orthogonal frequency division multiplexing signal composed resultingly of signals transmitted by the orthogonal frequency division multiplexing method from a plurality of transmission apparatuses; a correction value calculation block configured to calculate a correction value for correcting a drift amount of the orthogonal frequency division multiplexing signal using the phase of either a first pilot signal or a second pilot signal extracted from the acquired orthogonal frequency division multiplexing signal, the first pilot signal being obtained from pilot signals which are in phase with one another coming from the plurality of transmission apparatuses, the second pilot signal being acquired from pilot signals which are out of phase with one another coming from the plurality of transmission apparatuses; and a correction block configured to correct the drift amount of the orthogonal frequency division multiplexing signal in accordance with the calculated correction value. | 2011-01-27 |
20110019785 | Alignment of channel filters for multiple-tuner apparatuses - Apparatuses, systems, and methods that align channel filters for dual tuners are disclosed. An embodiment may comprise an IC having two tuners. Each tuner may have a low-noise amplifier, a mixer with a local oscillator, and channel filter. To perform a channel filter alignment, a bandwidth controller may cross-couple the local oscillator of each tuner to the input of the mixer of the opposite tuner. The bandwidth controller may adjust the frequencies of the local oscillators to produce different configuration tone frequencies at the outputs of the mixers, which are inputs to the channel filters. The bandwidth controller may then determine an amplitude difference between two separate measurements of a channel filter output and, based on a comparison of the measurements with predicted values, increment or decrement the filter bandwidth for each tuner and store parameters for the channel filters which create the largest signal amplitudes. | 2011-01-27 |
20110019786 | PROCESSING RECEIVED DIGITAL DATA SIGNALS BASED ON A RECEIVED DIGITAL DATA FORMAT - An integrated circuit radio receiver includes radio frequency (“RF”) front-end circuitry to receive a wireless signal and to produce digital data. The integrated circuit radio receiver includes a baseband processor is operable to process the digital data, in which the baseband processor is operable to produce a format designation based on the digital data. The baseband processor includes a plurality of digital filtering logic in which each of the digital filtering logic includes a level of digital filtering. The baseband processor further includes logic operable to select between each digital filtering logic of the plurality of digital filtering logic based upon the format designation, and to process the digital data with the selected level of digital filtering. | 2011-01-27 |
20110019787 | Method and Apparatus Synchronizing Integrated Circuit Clocks - Embodiments described herein include a method and system for synchronizing clocks between coupled integrated circuits (ICs) in a computer system. According to an embodiment, a dedicated timing pin is provided on a first IC. The first IC configures a second IC to change a pin assignment, so that the second IC interprets a signal sent on the timing pin by the first IC and received on the reassigned pin as a request to transmit a return signal. The return signal is received on the timing pin. The return signal is used to determine whether timing should be adjusted by the first IC. In an embodiment a clock and data recover (CDR) circuit compares the signal sent to the signal received in order to make the determination. In an embodiment the first IC is a processor-based device, and the second IC is a memory device controlled by the first device. | 2011-01-27 |
20110019788 | CLOCK REGENERATION CIRCUIT AND RECEIVER USING THE SAME - Provided are a clock regeneration circuit and a receiver, wherein difference values (V | 2011-01-27 |
20110019789 | RADIONUCLIDE PRODUCTION USING A Z-PINCH NEUTRON SOURCE - Radionuclides are produced with a pulsed neutron flux from a multiple repetition rate staged Z-pinch machine, the pulsed neutron flux is moderated, an activatable radionuclide precursor is exposed to the moderated pulsed neutron flux, and a corresponding radionuclide from the activatable radionuclide precursor is produced. High current pulses are passed through a target plasma of fusible material enclosed in a cylindrical liner plasma composed of a high-Z plasma to generate a magnetic field that compresses the liner plasma, and generates shock waves. The shock implodes the target plasma. The shock front propagates between an outer shock front and an axis of the target plasma so it is heated through shock dissipation and by adiabatic compression due to an imploding shock front produced in the outer liner plasma to fuse light nuclei and generate alpha particles and neutrons. Alpha particles trapped within the magnetic field further heat the target plasma. | 2011-01-27 |
20110019790 | ADVANCED FUEL CRUD SAMPLING TOOL METHOD - A method to perform an analysis of two types of CRUD on a nuclear fuel rod, including providing a nuclear fuel rod with a first and second layer of CRUD on an exterior of the fuel rod; brushing the first layer of CRUD from the fuel rod with a CRUD tool on a selected area; wherein the tool has a brushing device, a force applied to the brushing device on the fuel rod to remove the first layer of CRUD, the force being sufficient enough to perform such removal; collecting the first layer of CRUD from the brushing device, scraping the second layer of CRUD from the fuel rod in the selected area with the tool, wherein the tool has a scraping device and a second force is applied to the tool for scraping, collecting the second layer of CRUD from the scraping device, and analyzing the first layer and second layer of CRUD separately with a scanning electron microscope. | 2011-01-27 |
20110019791 | SELECTION OF OPTIMAL VIEWS FOR COMPUTED TOMOGRAPHY RECONSTRUCTION - Methods of making iterative low-dose computed tomography (CT) efficient and applicable to clinical practice employ selection of optimal views for CT reconstruction. By optimizing the views for CT reconstruction, the method of the present invention can generate reconstructions at a pre-specified low radiation dose and/or in near real-time. A feature-oriented framework for a task-driven, object-driven, and dose-minimizing selection of X-ray views is provided, which can utilize models of features to be mapped. The models can be derived from a patient population to minimize the dose per exam and/or from a specific patient to minimize the dose per procedure. The method of the present disclosure can be incorporated into a CT system, or can be embodied in a data storage medium as a program. | 2011-01-27 |
20110019792 | WAVEGUIDE AND COMPUTED TOMOGRAPHY SYSTEM WITH A WAVEGUIDE - The invention relates to a waveguide ( | 2011-01-27 |
20110019793 | X-RAY CT APPARATUS AND METHOD FOR CONTROLLING X-RAY TUBE - This embodiment is provided with a detector configured to detect an X-ray radiated from an X-ray tube, a reconstructing part configured to reconstruct an image from projection data based on the detection by the detector, an acquiring part configured to acquire a parameter indicating the status of a scan, a determining part configured to determine whether the parameter acquired by the acquiring part during the scan is included within a reference range, and a controller configured to change the size of a focal point of an electron beam to a different size depending on the determination result during the scan with reference to the result of the determination by the determining part. | 2011-01-27 |
20110019794 | ELECTRICAL ISOLATION OF X-RAY SEMICONDUCTOR IMAGER PIXELS - To mitigate the influence of charge sharing occurring in semiconductor detectors, an improved semiconductor detector ( | 2011-01-27 |
20110019795 | SOLID-STATE IMAGER AND X-RAY CT APPARATUS INCLUDING SAME - A solid-state imager has a structure for capturing a high-resolution image even if any of the read wiring and the column-selection wiring is disconnected. The solid-state imager ( | 2011-01-27 |
20110019796 | METHOD AND SYSTEM FOR THE AUTOMATED TESTING AND/OR MEASURING OF A PLURALITY OF SUBSTANTIALLY IDENTICAL COMPONENTS USING X-RAY RADIATION - A method and system for automated testing and/or measurement of a plurality of substantially identical components by means of X-ray radiation comprises a testing/measuring device with an X-ray device, a protection cabin surrounding the testing/measuring device, a conveying device for continuously conveying components to or away from the testing/measuring device, and a control/evaluation unit, which is set up for automated control of the system and for evaluation of the X-ray signals. The testing/measuring device comprises a support and a rotor mounted on the support so as to be continuously rotatable, the X-ray device being arranged on the rotor and the conveying device being set up for serial conveying of the components through the rotor and the control/evaluation unit for computer tomographic evaluation of the X-ray signals. | 2011-01-27 |
20110019797 | X-Ray Tomographic Inspection System for the Identification of Specific Target Items - The present invention provides for an improved scanning process with a stationary X-ray source arranged to generate X-rays from a plurality of X-ray source positions around a scanning region, a first set of detectors arranged to detect X-rays transmitted through the scanning region, and at least one processor arranged to process outputs from the first set of detectors to generate tomographic image data. The X-ray screening system is used in combination with other screening technologies, such as NQR-based screening, X-ray diffraction based screening, X-ray back-scatter based screening, or Trace Detection based screening. | 2011-01-27 |
20110019798 | X-RAY IMAGING APPARATUS AND METHOD FOR REDUCING X-RAY SCATTERING - An X-ray imaging apparatus and method for reducing X-ray scattering are provided. The X-ray imaging apparatus includes an X-ray source, a collimator, a detector, and a controller. The X-ray source emits X-rays, the collimator collimates the X-rays into an X-ray beam, and the detector may include a two-dimensional array of pixels. The controller controls the collimator such that the X-ray beam scans a subject while moving over time. In addition, the controller operates the detector to only operate pixels at an exposure area of the detector where the X-ray beam arrives without scattering such that photocharges generated due to the X-ray exposure can be accumulated and stored in the pixels. | 2011-01-27 |
20110019799 | SPATIAL SEQUENCED BACKSCATTER PORTAL - Systems and methods for scanning an object in an inspection space are disclosed. The systems and methods generally incorporate spatially separated and sequenced Compton x-ray backscatter imaging techniques in a plurality of perspective planes. Such processes as time-gating detectors, weighting scintillation detections, and preferentially accepting signals that originate from a point that is substantially orthogonal to a radiation detector and at least partially shielding out signals that do not originate from a point substantially orthogonal to the detector may be used to enhance the data acquisition process. | 2011-01-27 |
20110019800 | X-RAY DETECTOR FOR RECORDING X-RAY IMAGES AND X-RAY RECORDING SYSTEM - An X-ray detector ( | 2011-01-27 |
20110019801 | METHOD FOR PRODUCING A 2D COLLIMATOR ELEMENT FOR A RADIATION DETECTOR AND 2D COLLIMATOR ELEMENT - A method is disclosed for producing a 2D collimator element for a radiation detector, in which crossing webs made of a radiation-absorbing material are formed, layer-by-layer, by way of a rapid manufacturing technique. In at least one embodiment, the webs are aligned along a φ- and a z-direction and form a cell-shaped structure with laterally enclosed radiation channels, at least in the inner region of the 2D collimator element. In at least one embodiment, the invention moreover relates to a 2D collimator element for a radiation detector that has such a layered construction. This allows the provision of a very precise and rigid collimator arrangement which, at the same time, has a high collimation effect. | 2011-01-27 |
20110019802 | UNIVERSAL X-RAY TEST BED - Systems and methods presented herein provide for the testing and reconfiguration of x-ray devices. In one embodiment, a test bed effectuates testing of an acquired x-ray device to determine a cause of the inoperability of the device. The x-ray device test bed may be provided to test a plurality of x-ray devices and, therefore, readily adaptable to such devices. The x-ray device test bed may include a mount for an x-ray tube. A variable power supply may be coupled to the x-ray tube to provide the requisite high-voltage electrical energy thereto. The x-ray device test bed may also include a mount for an imaging module (e.g., a “flat-panel sensor”). A processor may be coupled to the imaging module to determine the operational characteristics thereof. If certain x-ray components are deemed inoperable, the x-ray components may be replaced such that the x-ray device may be reintroduced to a medical industry segment. | 2011-01-27 |
20110019803 | Method and device for presenting reason prompt for video call failure - A method for presenting a reason prompt for a video call failure includes: acquiring, by a network-side entity, a value of reason for a video call failure determined by an originating switch, with which a calling terminal is communicated; determining a reason prompt corresponding to the value of the reason for the video call failure; and presenting the reason prompt to the calling terminal. An embodiment of the present disclosure further provides a device for presenting a reason prompt for a video call failure and an originating switch apparatus. Reason prompts for video call failures can be updated dynamically at the network side, thereby guaranteeing the accuracy of reason prompts for video call failures presented to a calling subscriber, and improving the experience of the subscriber. Meanwhile, the operator can update a reason prompts for a video call failure in time, and the flexibility in operation at the operator side is enhanced. | 2011-01-27 |
20110019804 | Selectable Audio and Mixed Background Sound for Voice Messaging System - Methods, systems, computer program products, and methods of doing business by selectably mixing one or more sound files with a telephone caller's voice message, either as background for that message or embedded within the message. Or, the mixing may occur within a telephone conversation between parties. The disclosed techniques enable alleviating some of the problems that result from distance communication (as contrasted to face-to-face communication). In particular, context information (such as emotional context) can be provided through appropriate use of background sound and/or embedded audio files. The disclosed techniques may also make communication through voice mail exchange more enjoyable and/or increase its productivity. | 2011-01-27 |
20110019805 | METHODS AND SYSTEMS FOR SEARCHING AUDIO RECORDS - Methods and systems are provided for searching audio records. Certain embodiments of the invention may be applied to search audio records containing a user's voice for instances where a specific sound, such as a word or phrase, is vocalized by the user. An audio sample is provided by recording the user vocalizing the sound. The audio sample is compared with the audio records to locate matches to the audio sample. In some embodiments, the audio records comprise recordings of calls between a near-end caller and a far-end caller, and the audio sample is a recording of a sound spoken by the near-end caller. The same input device may be used to record both the audio sample and the audio records. | 2011-01-27 |
20110019806 | METHOD AND SYSTEM FOR SWITCHING VOICE SERVICE BETWEEN DIFFERENT NETWORKS, AND CUSTOMER PREMISES EQUIPMENT - A method and a system for switching a voice service between different networks as well as a Customer Premises Equipment (CPE) are disclosed herein. The CPE includes: a switching control module, configured to determine the mode of transmitting voice and switch between the fixed network and the mobile network; a terminal service processing module; a wireless service processing module; a wired service processing module; and a central service processing module, configured to: receive the event information sent by the terminal service processing module, or the wireless service processing module, or the wired service processing module; perform operations indicated in the event information; and send event information for controlling one or more of the following modules: the terminal service processing module, the wireless service processing module, and the wired service processing module. The embodiments of the present invention enable free switching of a voice service between the mobile network and the fixed network, and reduce the risks of voice transmission failure caused by faults in a network. | 2011-01-27 |
20110019807 | Method to Verify Telephone Number - A method for an authentication server to authenticate Voice over Internet Protocol (VoIP) devices includes receiving a request from a unverified VoIP device to verify its global telephone number over a computer network, searching for verified VoIP devices that have authenticated identities and caller ID service, and providing the telephone numbers of the verified VoIP devices to the unverified VoIP device, wherein the unverified VoIP device calls the verified VoIP devices and the verified VoIP devices detect telephone numbers of the unverified VoIP device. The method further comprises receiving the detected telephone numbers from the verified VoIP devices and determining if the detected telephone numbers match a telephone number provided by the unverified VoIP device, wherein the unverified VoIP device becomes verified if the telephone numbers match the telephone number provided by the VoIP device. | 2011-01-27 |
20110019808 | METHOD AND SYSTEM FOR AUTOMATIC ASSIGNMENT OF OUTBOUND AND INBOUND CALL IDENTITY - A system and method for automatic assignment of outbound and inbound call identity between a salesperson and a client is disclosed. For automatic assignment of outbound call identity between a salesperson and a client, a salesperson places a call to the telephone number of the client. A phone server matches a sales group to a salesperson and an entered sales group and an NPA (i.e., area code) of the client in a database. If a match is found, the phone server substitutes a replacement caller ID for actual caller ID of the salesperson. When the client answers the call, the replacement caller ID or default caller ID is displayed on client's phone. For automatic assignment of inbound call identity between a client and a salesperson, the client places a call using the replacement caller ID. The phone server searches the database for a sales group that matches the DID of the replacement caller ID. The phone server rings the telephones of salespeople that match the sales group entry in order of the most “efficient” salesperson of the group until one of the salespeople answers their phone. | 2011-01-27 |
20110019809 | Services and Transactions in a Telephony Network - A telecommunication method and system are described. A request in a telephony network is received for a communication connection between a caller and a call recipient. A call connect command is received from the caller. In response to the call connect command and before conventional routing to connect the communication, the caller is notified of at least one offering. The communication connection is routed between the caller and the call recipient after the caller is notified of the at least one offering. | 2011-01-27 |
20110019810 | Systems and methods for switching between computer and presenter audio transmission during conference call - A new approach is proposed that contemplates systems and methods to support switching between computer audio and presenter audio during a conference call so that one and only one, not both, of the two audio streams is being transmitted to the rest of the conference at any time. More specifically, a switch engine is adopted, which separately takes one or more audio streams captured by a sound mixing component of the hosting device of a presenter and by a microphone attached to the hosting device as its two inputs, and outputs only one of the two inputs at any time. The selected audio output is then processed and transmitted to the rest of the conference with feedback from other audio sources canceled. | 2011-01-27 |
20110019811 | SYSTEM AND METHOD OF PROVIDING LOCAL NUMBER PORTABILITY - A system for and method of providing local number portability is presented. A request may be received to establish a session between an origination user agent and a destination user agent. The request may comprise a destination user agent identifier. It may be determined whether the destination user agent identifier was ported from one service provider to another. If so, routing information may be provided for establishing the session through the second service provider rather than through the first service provider. The session may be established over one or more Internet protocol networks. | 2011-01-27 |
20110019812 | SYSTEM AND METHOD FOR INTERACTIVE CUSTOMER SERVICE - A method is implemented by one or more server devices associated with a network. The method includes receiving information relating to a customer service request, where the information includes data to identify a category of the customer service request. The method also includes receiving a request to speak with a customer service agent, and placing a service call request in a calling queue associated with the category of the customer service request. The method further includes monitoring availability of customer service agents associated with the calling queue, and sending a call initiation message to the access terminal when a customer service agent associated with the calling queue is available. Based on the call initiation message, the access terminal may automatically initiate a voice session with an available customer service agent. | 2011-01-27 |
20110019813 | COMMUNICATION APPARATUS AND CONTROL METHOD THEREFOR - This invention provides a communication apparatus, which suppresses abrupt changes of a current and voltage generated in a communication line upon connecting an external telephone to the communication line, and a control method thereof. To accomplish this, in a communication apparatus of this invention, when an off-hook state of an external telephone is detected upon connecting the external telephone to a communication line, an SOC captures a line using a first line capture means having an impedance lower than the external telephone side, and then switches an H-relay to connect the external telephone to the communication line. Furthermore, the SOC temporarily switches a line capture state to a second line capture means having an impedance higher than the first line capture means after the H-relay is switched and before the line is released. | 2011-01-27 |
20110019814 | VARIABLE SIZED HASH OUTPUT GENERATION USING A SINGLE HASH AND MIXING FUNCTION - A system and circuit for generating a variable sized hash output using a single hash and mixing function are disclosed. In one embodiment, a system for generating a variable sized hash output data includes a hash function module for generating an N bit hash result data by processing an M bit input data. The system also includes a mixing function module including a plurality of logic gates which implement a set of reversible arithmetic functions for generating an N bit hash output data by processing the N bit hash result data using the set of reversible arithmetic functions, where a subset of the N bit hash output data is used as the variable sized hash output data, and a size of the subset of the N bit hash output data is less than N bits. | 2011-01-27 |
20110019815 | METHOD OF AUTHENTICATION USING A DECODING OF AN ERROR CORRECTING CODE ON THE BASIS OF A PUBLIC MATRIX - The invention relates to a cryptographic method of authentication using a decoding of an error correcting code on the basis of a public matrix, in which the public matrix is a quasi-cyclic matrix. The invention pertains also to a cryptographic device comprising computation means arranged so as to implement this method. The invention makes it possible to reduce the amount of public data to be stored in a cryptographic authentication method using a decoding of an error correcting code on the basis of a public matrix. | 2011-01-27 |
20110019816 | ELECTRONIC DOCUMENT PROCESSING SYSTEM - An electronic document processing system | 2011-01-27 |
20110019817 | PERMISSION-BASED TDMA CHAOTIC COMMUNICATION SYSTEMS | 2011-01-27 |
20110019818 | SYSTEM FOR LOCKING ELECTRONIC DEVICE AND METHOD THEREOF - A system for locking an electronic device is provided. The system includes an electronic device, and electronic keys electrically connected to the electronic device. The electronic key includes a plurality of resistors which are connected in series, the resistance value of the electronic key is changeable by coupling different resistors of the electronic key. The electronic device comprises of a processing unit and a function key. When the function key produces locking command in response to user operation, the processing unit obtains the resistance value of the electronic key and produce encryption key according to the obtained resistance value to unlock the electronic device. When the function key produces unlocking command, the processing unit decodes the encryption key and unlocks the electronic device when determining the obtained value matches the decoded encryption key. | 2011-01-27 |
20110019819 | SYSTEM AND METHOD OF MASKING ELECTROMAGNETIC INTERFERENCE (EMI) EMISSIONS OF A CIRCUIT - A system is provided for securing information residing on a circuit (e.g., processor). In particular, a system and method is provided for masking electromagnetic interference (EMI) emissions emitting from a circuit using a random noise generator in combination with a low noise amplifier and antenna. The random number generator matches a frequency of a circuit to be protected, and generates a random signal to be superimposed on data. The low noise amplifier receives the random signal from the random number generator, and an antenna receives the random signal from the low noise amplifier and transmits the random signal to mask the data of the circuit to be protected. | 2011-01-27 |
20110019820 | COMMUNICATION CHANNEL CLAIM DEPENDENT SECURITY PRECAUTIONS - A set of security claims for a communication channel are obtained, the set of security claims including one or more security claims each identifying a security characteristic of the communication channel. The security claims are stored, as is a digital signature generated over the set of security claims by an entity. The security claims and digital signature are subsequently accessed when a computing device is to transfer data to and/or from the communication channel. The set of security claims is compared to a security policy of the computing device, and the entity that digitally signed the set of security claims is identified. One or more security precautions that the computing device is to use in transferring data to and/or from the communication channel are determined based at least in part on the comparing and the entity that has digitally signed the set of security claims. | 2011-01-27 |
20110019821 | IMAGE FORMING APPARATUS, CHARGING INFORMATION RECORDING METHOD, AND RECORDING MEDIUM - An image forming apparatus includes a unit for receiving process information indicating a list of processes used in a process flow requested by an information processing apparatus connected via a network; a unit for executing a process that the image forming apparatus is requested to execute, and recording charging information, which is relevant to the executed process, in charging information record data of the process flow; a unit for transferring the charging information record data to a service providing device that is requested to execute another process; a unit for receiving the charging information record data in which charging information, which is relevant to the other process executed by the service providing device, has been recorded by the service providing device; and a unit for recording, in a storage unit, the charging information record data in which charging information are recorded in association with the corresponding processes in the list. | 2011-01-27 |
20110019822 | KEYS FOR PROTECTING USER ACCESS TO MEDIA - A broadcasting server connectable to a plurality of user devices and connectable to or comprising a key distribution centre, the broadcasting server comprising a processor and a memory, the broadcasting server configured to generate a plurality of key parts which together form an encryption key and/or the memory of the broadcasting server includes a plurality of key parts which together form an encryption key, the broadcasting sever is configured to: send a first key part to a first user device of said plurality of user devices, the first key part being one of the plurality of key parts, send a second key part to a second user device of said plurality of user devices, the first key part being one of the plurality of key parts, and encrypt data for broadcast with the encryption key and to broadcast the encrypted data to said plurality of user devices. | 2011-01-27 |
20110019823 | OPTICAL COMMUNICATION SYSTEM AND METHOD FOR SECURE DATA COMMUNICATION USING QUANTUM KEY DISTRIBUTION - The invention provides time-synchronised transmission of data on the (polarisation or phase-modulated) QKD channel and the (on-off modulated) conventional channel such that a QKD bit is only transmitted when a zero, or sequence of zeros, is transmitted on the conventional channel. Also, there is co-directional propagation of the QKD and conventional channel. Further, there is dispersion management through wavelength selection or control of fibre properties or other means such that the “walk-off in time of the QKD pulses and the Raman pulses generated by the ones on the conventional channel is less than or of the order of one bit period. The latter can be achieved, for example, by placing the conventional and QKD channel wavelengths close to the point where the group velocity-induced time delay for optical pulses propagating in the fibre reaches a minimum. This dispersion minimum occurs at a wavelength of 1.3 microns in standard fibre. The invention discloses a receiver embodiment to implement the invention. | 2011-01-27 |
20110019824 | LOW POWER RADIOFREQUENCY (RF) COMMUNICATION SYSTEMS FOR SECURE WIRELESS PATCH INITIALIZATION AND METHODS OF USE - Provided herein is a wireless healthcare system comprising at least one sensor and a base unit adaptable to be in communication with the sensor. The sensor can be is adaptable to communicate with the base unit at a first power during formation of a communication link and is further adaptable to communicate with the base unit at a second power after the communication link has been formed, and wherein the sensor and base unit are components of a wireless healthcare system. The sensor can be a patch adaptable to be positioned on the surface of a patient. Further provided herein is a method of using the wireless healthcare system and kit. | 2011-01-27 |
20110019825 | SYSTEM AND METHOD OF TRAINING A TRANSMIT/RECEIVE SYSTEM - A radio frequency transmitter is configured to send radio frequency messages to activate a remote system. Each message includes an encrypted counter value and a transmitter identifier. The transmitter is configured to send at least two of the messages having sequential encrypted counter values in response to a single user input. | 2011-01-27 |
20110019826 | METHOD OF INSTALLING A WIRELESS NETWORK - A method of method of installing a wireless communications network configures a client device to connect wirelessly to an access point arranged to provide a wireless communications network. The method comprises running an installation program on the client device for configuring the client device to attach to the wireless communications network. The installation program is automatically provided with wireless network configuration information comprising at least a wireless network identifier which identifies traffic using the wireless communications network. The automatic provision of the wireless network configuration information formation comprising said wireless network identifier is implemented by connecting an installation device comprising non-volatile memory which stores said information, and configuring said installation program to utilise the information stored on said installation device. The wireless network configuration information stored on said installation device corresponds to the wireless network configuration of said access point and both the installation device and the access point were configured with the wireless network configuration information prior to said installation device being connected to any client terminal arranged to connect to said access point. | 2011-01-27 |
20110019827 | INFORMATION PROCESSING APPARATUS - An information processing apparatus includes: a plurality of digital broadcast stream data descramblers configured to receive broadcast streams and to output descrambled data by descrambling the broadcast streams; a block data buffer configured to buffer access requests output from the digital broadcast stream data descramblers to a B-CAS card per B-CAS access block units; and an arbiter configured to arbitrate the B-CAS card access requests. | 2011-01-27 |
20110019828 | Apparatus and method for sound enhancer - Apparatuses, methods, and systems directed to enhancing sound quality in audio signal transmissions. Some embodiments of the present invention comprise an audio signal processor operable to boost one or more frequency components of an input signal. In one embodiment, the audio signal processor boosts three frequency components comprising frequency bands centered near 300 Hz, 1.7 kHz, and 5.4 kHz. Other embodiments of the present invention can be used to enhance stereo audio signals comprising a left and a right input signal. The left and the right input signals are filtered and one or more frequency components of the left and the right input signals are boosted by one or more predetermined values. Some embodiments of the present invention comprise one or more integrated circuits comprising one or more analog or digital filters operable to boost one or more frequency components of an audio input signal. | 2011-01-27 |
20110019829 | STEREO SIGNAL CONVERTER, STEREO SIGNAL REVERSE CONVERTER, AND METHODS FOR BOTH - Disclosed are a stereo signal converter whereby it is possible to obtain low-redundancy encoding signals (M, S) even when the sound source locations are different, and a stereo signal reverse converter whereby it is possible to obtain higher-quality stereo signals. In a stereo signal converter ( | 2011-01-27 |
20110019830 | Antenna Arrangement for a Hearing Instrument - The present invention relates to a hearing instrument which comprises: (a) a housing; (b) an RF receiver; (c) plurality of conductive elements, each conductive element has the form of a plate, is positioned on said housing so it provides coupling with the device wearer's skin while the instrument is in use, thereby forming an antenna element together with the wearer's body; (d) a switch for each conductive element, for connecting or disconnecting the respective antenna element from the receiver; (e) a controller for periodically initiating a testing cycle wherein during said cycle: (e. | 2011-01-27 |
20110019831 | Echo Suppression Method and Apparatus Thereof - In an echo suppression apparatus, an adaptive filter estimates an echo path of a near end, and generates a pseudo echo signal of a reception signal received from a far end. A subtractor subtracts the pseudo echo signal from a near-end signal including an echo signal of the reception signal, a near-end sound and a background noise, thereby generating an echo-canceled signal. A background noise estimation unit estimates a spectrum of the background noise. A non-linear processing unit performs spectrum subtraction of the estimated spectrum of the background noise from the spectrum of the echo-canceled signal, and controls a gain of the spectrum of the echo-canceled signal in response to the result of the spectrum subtraction, thereby obtaining a spectrum of a transmission signal transmitted to the far end. A threshold calculation unit calculates a threshold value used to determine presence or absence of the residual echo in the echo-canceled signal. The non-linear processing unit compares the result of the spectrum subtraction with the threshold value, then controls the spectrum of the echo-canceled signal with a high gain in case that the result of the spectrum subtraction is higher than the threshold value, and with a low gain in case that the result of the spectrum subtraction is not higher than the threshold value. | 2011-01-27 |
20110019832 | SOUND PROCESSOR, SOUND PROCESSING METHOD AND RECORDING MEDIUM STORING SOUND PROCESSING PROGRAM - A sound processor includes a conversion unit converts a reference sound signal corresponding to a base of sound to be output and an observation sound signal based on each of sound signals output by a plurality of sound receiving units into frequency components, an echo suppression unit estimates echo derived from sound based on a converted reference sound signal and suppressing the estimated echo in a converted observation sound signal, a noise suppression unit estimates noise based on an arrival direction of sound and suppressing the estimated noise in the converted observation sound signal and an integrating process unit suppresses, with respect to each frequency component, echo and noise in the converted sound signal based on a observation sound signal obtained after echo suppression and a observation sound signal obtained after noise suppression. | 2011-01-27 |
20110019833 | APPARATUS AND METHOD FOR COMPUTING FILTER COEFFICIENTS FOR ECHO SUPPRESSION - A preferred embodiment of an apparatus for computing filter coefficients for an adaptive filter for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal includes an extractor for extracting a stationary component signal or a non-stationary component signal from the loudspeaker signal or from a signal derived from the loudspeaker signal, and a computer for computing the filter coefficients for the adaptive filter on the basis of the extracted stationary component signal or the extracted non-stationary component signal. | 2011-01-27 |
20110019834 | HEARING PROTECTOR - A hearing protector comprises two protective muffs ( | 2011-01-27 |
20110019835 | Speaker Localization - The present invention relates to a method for localizing a sound source, in particular, a human speaker, comprising detecting sound generated by the sound source by means of a microphone array comprising more than two microphones and obtaining microphone signals, one for each of the microphones, selecting from the microphone signals a pair of microphone signals for a predetermined frequency range based on the distance of the microphones to each other and estimating the angle of the incidence of the sound on the microphone array based on the selected pair of microphone signals. | 2011-01-27 |
20110019836 | SOUND PROCESSING APPARATUS - A sound emission and collection device includes a main housing and two sub-housings. In the main housing, a microphone array is provided. Microphone arrays are also provided in the sub-housings. Sound collection directions of the microphone arrays are outer directions which are opposite a side of the main housing. The sub-housings are rotatably connected to the main housing. The sound emission and collection device generates a plurality of collected sound beam signals MB | 2011-01-27 |
20110019837 | MULTI-LEVEL OUTPUT SIGNAL CONVERTER - The present invention discloses a multi-level output signal converter, which is connected to an audio amplifier. The audio amplifier comprises a comparing/measuring device, an encoder and an output unit. The multi-level output signal converter comprises a timing processing unit and a multi-level converter. The timing processing unit is connected to the comparing/measuring device and the encoder. The timing processing unit includes a plurality of flip-flops and a timing summing element. The flip-flop receives a first signal from the comparing/measuring device and outputs the first signal to the timing summing element. The encoder converts the first signal into a second signal. The multi-level converter is connected to the encoder and the output unit. The encoder transmits the second signal to the multi-level converter, and the multi-level converter thus outputs a third signal to the output unit. | 2011-01-27 |