52nd week of 2010 patent applcation highlights part 37 |
Patent application number | Title | Published |
20100329368 | COMMUNICATION DEVICE, COMMUNICATION SYSTEM, RECEPTION METHOD, AND COMMUNICATION METHOD - A second communication device which communicates with a first communication device, the second communication device including: a reception unit which receives an initial transmission signal and at least one retransmission signal; and an iterative detection and decoding unit which performs iterative processes of signal detection and signal decoding for at least one received signal among received signals received by the reception unit, wherein the iterative detection and decoding unit includes: a combining unit which combines a result of signal detection obtained from at least one other received signal in one of the iterative processes. | 2010-12-30 |
20100329369 | METHOD AND APPARATUS FOR FACILITATING MULTI-USER JOINT TRANSMIT-RECEIVE BEAMFORMING - A method of wireless communication is disclosed that includes receiving detected channel information from a plurality of access terminals; selecting a set of access terminals from the plurality of access terminals based on the received channel information; creating a beamforming vector for each access terminal in the set of selected access terminals; and transmitting a signal using at least one of the created beamforming vectors. An apparatus for performing the method is also disclosed herein. | 2010-12-30 |
20100329370 | Selection of a Subset of Antennas for Transmission - A method and apparatus of a subscriber station selecting a subset of a plurality of antennas for uplink transmission are disclosed. One method includes a base station transmitting a cyclic delay diversity transmission signal. The subscriber station receives the cyclic delay diversity transmission signal through the plurality of antennas. The subscriber station selects a subset of the plurality of antennas based on a received quality signal parameter. The subscriber station transmits uplink signals to the base station through the selected subset of the plurality of antennas. | 2010-12-30 |
20100329371 | MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION SYSTEM FOR FEEDFORWARDING INTERFERENCE VECTOR INDICATOR - Provided are a base station configured to provide an interference vector indicator to a terminal, and the terminal configured to recognize at least one remaining precoding vector using the interference vector indicator. Each of the base station and the terminal may configure a mapping table between at least one bit for the interference vector indicator indicating the at least one remaining precoding vector, and a plurality of vectors included in a codebook, based on a probability that the plurality of vectors may be included in a precoding matrix. In this instance, the base station may generate the interference vector indicator using the mapping table, and the terminal may recognize the at least one remaining precoding vector using the mapping table. The mapping table may be differently configured according to various modes. | 2010-12-30 |
20100329372 | Method and Apparatus for Generating a Carrier Frequency Signal - A method and apparatus for generating a carrier frequency signal is disclosed. The method includes generating a first frequency signal; injecting a modulation signal at a first point of the two-point modulation architecture; generating a second frequency signal from the modulation signal; introducing the second frequency signal by mixing the first frequency signal and the second frequency signal to generate a mixed frequency signal and outputting the carrier frequency signal selected from the mixed frequency signal. | 2010-12-30 |
20100329373 | RECEIVER, SIGNAL PROCESSING APPARATUS AND RECEIVING METHOD - A receiver for receiving a signal including a series of symbols, the signal being performed Time Window processing at portions including a boundary of adjacent symbols by a transmitter so as to eliminate a discontinuity between the symbols, the receiver includes: a receiving unit that receives the signal; and a processor extracts the series of symbols and performing an inverse processing of the Time Window processing at the portions performed the Time Window processing by the transmitter. | 2010-12-30 |
20100329374 | TECHNIQUES FOR ESTIMATING CHANNEL AND INTERFERENCE IN OFDM WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS - A method and multiple antenna transmitting apparatus for transmitting a midamble in a wireless communication system, and a method and receiving device for receiving a midamble in a wireless communication system are provided. A method for transmitting a midamble by a multiple antenna transmitting device includes determining a pattern for a midamble including null subcarriers and pilot subcarriers, wherein each of the pilot subcarriers corresponds to one of a plurality of pilot signals, and each of the plurality of pilot signals corresponds to a different one of a plurality of transmit antennas, and transmitting the pilot signals in corresponding pilot subcarriers based on the determined pattern, wherein the pilot signals are transmitted in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of a resource block comprising a plurality of subcarriers and a plurality of OFDM symbols. | 2010-12-30 |
20100329375 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A channel estimation unit | 2010-12-30 |
20100329376 | METHOD FOR ACCELERATING THE PRECODING AND PRE-DECODING OF SYMBOLS IN OFDM SYSTEMS | 2010-12-30 |
20100329377 | RADIO COMMUNICATION SYSTEM - A radio communication system whereby one or a consecutive plurality of sub-carrier frequency intervals form sub-carrier groups each of which is assigned to a different user. The radio communication system includes a radio communication apparatus and a terminal configured to receive a control signal and a data signal from the radio communication apparatus. The terminal receives the control signal and the data signal according to a notified control signal position. | 2010-12-30 |
20100329378 | MULTIPLE ANTENNA SPATIAL MULTIPLEXING OPTIMAL DETECTION - MIMO detection is described that reduces the complexity of computations for finding the soft bit output. The detection process includes QR factorization splitting the distance calculations into two groups, subset lookup using a last cross constellation set (LCCS) lookup, and minimal distance lookup with soft bit output calculation. By grouping the distance calculations into a first group that has one antenna transmitting using a modulation scheme with a generally square constellation diagram and a second group for all of the other antenna constellation diagrams, the LCCS lookup process may be used which substantially reduces the number of calculations to be made in the detection process. Moreover, in the special case of 2×2 antenna, QR factorization is performed by applying a scaled Givens rotation to the channel matrix. The application of the scaled Givens rotation operator eliminates any square root operations that would be performed in a standard QR factorization. | 2010-12-30 |
20100329379 | ESTIMATING CHANNEL CONDITIONS IN A MIMO OFDM COMMUNICATION SYSTEM - A method of estimating channel conditions for use in a MIMO communication system includes the steps of, at a receiver: computing a SINR metric for all pre-coding matrices; computing a first capacity metric for the bandwidth from the SINR metrics, and selecting a rank which maximizes the first capacity metric; computing a second capacity metric for each frequency channel from the SINR metrics and the selected rank, and selecting one or more pre-coding matrices which maximize the second capacity metric; computing a third capacity metric from the second capacity metric, selected rank and selected pre-coding matrices for each transmission layer within each frequency channel, and selecting one or more frequency channels which maximize the third capacity metric; and transmitting the selected rank, selected pre-coding matrices and selected frequency channels to the transmitter for use in subsequent data transmissions. | 2010-12-30 |
20100329380 | METHOD FOR SELECTING ADAPTIVE FREQUENCY BASEBAND OF WALSH CODES, ADAPTIVE FREQUENCY-SELECTIVE SPREADER USING THE SAME AND TRANSMITTING AND RECEIVING APPARATUS USING THE ADAPTIVE FREQUENCY-SELECTIVE SPREADER - There is provided a human body communication method and system using a frequency-selective baseband in order to transmit and receive data between communication devices that are coupled to a human body by using the human body as a communication channel. The human body communication method and system may be useful to maximize an efficiency of the frequency-selective spreading technology to enhance a processing gain of the Walsh code technology, and thus to reduce the interference between human bodies of users by adaptively selecting a frequency band of Walsh codes that are used for data communications according to the human body channel characteristics and the noise environments that are varied according to the ambient environments, and also construct a low-power and stable human body communication when there is a strong interference induced from other electronic equipments. | 2010-12-30 |
20100329381 | SIGNAL PROCESSING APPARATUS, INFORMATION PROCESSING APPARATUS, MULTILEVEL CODING METHOD, AND DATA TRANSMISSION METHOD - Provided is a signal processing apparatus including an encoder for encoding, according to respective specific coding schemes, a first bit string formed from bit values at odd-numbered positions and a second bit string formed from bit values at even-numbered positions that are obtained by alternately extracting bit values from a bit string that is expressed by mutually different first and second bit values, and generating first and second encoded signals that do not include a DC component, and a signal generation unit for generating a multilevel signal by respectively adding, to a clock signal having larger amplitude than the first and second encoded signals that are generated by the encoder, the first encoded signal in synchronization with a timing of the clock signal being at a positive amplitude value and the second encoded signal in synchronization with a timing of the clock signal being at a negative amplitude value. | 2010-12-30 |
20100329382 | DIGITAL BROADCASTING TRANSMITTER AND RECEIVER, AND METHODS FOR PROCESSING STREAMS THEREOF - A digital broadcast transmitter to transmit a plurality of supplementary data streams is provided, including a multiplexer (MUX) unit which generates a transmission stream by inserting the plurality of supplementary data streams into a normal data stream so that the plurality of supplementary data streams are continuously arranged in an alternating pattern in the normal data stream, and an exciter unit which processes the transmission stream so that the plurality of supplementary data streams are distinguishably arranged in a plurality of areas forming a plurality of transmission units. | 2010-12-30 |
20100329383 | APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL AND A METHOD OF TRANSMITTING AND RECEIVING A SIGNAL - A method of transmitting/receiving a signal and an apparatus for transmitting/receiving a signal are disclosed. The method of receiving a signal includes receiving signal frames temporally shifted via a plurality of radio frequency (RF) channels, demodulating one of the signal frames using first pilot signals and second pilot signals included in the signal frames and compensating for the channel of the demodulated signal frame and decoding service contents from the signal frame of which the channel is compensated for. | 2010-12-30 |
20100329384 | METHOD OF TRANSMITTING A WIDEBAND FRAME - A method of transmitting a wideband frame for a wideband system having backward compatibility with a narrowband system includes configuring a wideband carrier by using a set of base carriers, wherein a bandwidth of the base carriers corresponds to a bandwidth of the narrowband system and any one of center frequencies of the base carriers is the same as a center frequency of the narrowband system, and allocating all or some of guard subcarriers between the two adjacent base carriers to a traffic channel when a center frequency spacing between two adjacent base carriers is an integer multiple of a subcarrier spacing. Accordingly, the method can be used to support backward compatibility with the narrowband system. Further, the method can be equally used when the narrowband system co-exists with the wideband system in a guard band defined in a narrowband of a new system. | 2010-12-30 |
20100329385 | POWER SUPPLY APPARATUS AND POWER SUPPLY METHOD - When transmitting an RF signal for power supply or a pulse signal for data transmission, amplification is made in such a manner that the peak power of the RF signal becomes greater than the peak power of the pulse signal. Thus transmitting the RF signal with the greater peak power enables charging of a capacitor | 2010-12-30 |
20100329386 | Crosstalk Control Method and Apparatus Using a Bandwidth-Adaptive Precoder Interface - In a communication system, a precoder is coupled between first and second portions of each of a plurality of transmitters. The precoder is configured to receive an adaptive index representation of a scaled signal associated with the first portion of a first one of the transmitters, and to process the adaptive index representation using an adjusted precoder coefficient to generate a precompensation signal. The precompensation signal is supplied from the precoder to the second portion of a second one of the transmitters for use in precompensation of at least one signal to be transmitted by the second transmitter. | 2010-12-30 |
20100329387 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus includes a transmission unit configured to convert an input signal into a transmission signal, and a correction unit configured to impart, to the input signal, characteristics opposite to group delay deviation derived from amplitude deviation of a reflective wave of the transmission signal reflected from a radio transmission filter, through which the transmission signal output from the transmission unit passes to arrive at an antenna. | 2010-12-30 |
20100329388 | FREQUENCY SYNTHESIZER AND POLAR TRANSMITTER HAVING THE SAME - A frequency synthesizer includes a distributed phase detector circuit, a multiple charge pump, a loop filter, a voltage-controlled oscillator and a dividing circuit. The distributed phase detector circuit delays an up signal and a down signal to generate a delayed up signal and a delayed down signal. The multiple charge pump generates a distributed current signal including a plurality of current pulse signals. Each of the current pulse signal is based on each bit of the delayed up signal and the delayed down signal. The loop filter filters the distributed current signal to generate a control voltage. The voltage-controlled oscillator generates an oscillation frequency signal based on the control voltage. The dividing circuit divides the oscillation frequency signal to generate a plurality of division frequency signals in response to a plurality of control signals, where the frequency signals are fedback to the distributed phase detector circuit. | 2010-12-30 |
20100329389 | RECEPTION DEVICE, TRANSMISSION DEVICE, RADIO TRANSMISSION/RECEPTION SYSTEM, AND RADIO RECEPTION METHOD - Orthogonal converters perform orthogonal conversion on the N time-series data extracted from a received radio signal. Multi-user detectors extract transmitted signals from respective transmission devices, from the time-series data which has been subjected to the orthogonal conversion. Inverse orthogonal converters perform inverse orthogonal conversion on the extracted transmitted signal. Rectangular filter circuits remove Mh time-series data at the front end and Mt time-series data at the rear end, from the transmitted signal which has been subjected to the inverse orthogonal conversion, so as to extract Nw time-series data. Deinterleaver circuits deinterleave the aforementioned time-series data. Decoders decode the time-series data for output. | 2010-12-30 |
20100329390 | ADAPTIVE OFFSET-COMPENSATING DECISION-FEEDBACK RECEIVER - A circuit that receives input signals from a transmitter via proximity communication, such as capacitively coupled proximity communication, is described. Because proximity communication may block DC content, the circuit may restore the DC content of input signals. In particular, a refresh circuit in the circuit may short inputs of the circuit to each other at least once per clock cycle (which sets a null value). Furthermore, a feedback circuit ensures that, if there is a signal transition in the input signals during a current clock cycle, it is passed through to an output node of the circuit. On the other hand, if there is no signal transition in the input signals during the current clock cycle, the feedback circuit may select the appropriate output value on the output node based on the output value during the immediately preceding clock cycle. | 2010-12-30 |
20100329391 | INFORMATION DETECTING APPARATUS AND METHOD - Proposed are a highly reliable information detecting apparatus and an information detecting method. This information detecting apparatus includes a high pass filter unit configured in a manner of being able to freely change a time constant and for extracting a high frequency content of the communication signal, a squelch detection unit for detecting a region in which a signal level of the high frequency component of the communication signal exceeds a predetermined squelch detection threshold, an information detection unit for detecting the information superposed on the communication signal based on a detection output of the squelch detection unit, a DC fluctuation detection unit for detecting a level fluctuation of a DC component of the communication signal, a control unit for controlling the high pass filter to lower the time constant of the high pass filter unit when the level fluctuation of the DC component of the communication signal is detected by the DC fluctuation detection unit, and a mask unit for masking the detection output of the squelch detection unit so as to make it appear that the squelch detection unit has not detected a region exceeding the squelch detection threshold while the control unit is lowering the time constant of the high pass filter unit. | 2010-12-30 |
20100329392 | Apparatus and Method for IQ Imbalance Calibration in a Receiver - A method and apparatus is disclosed to compensate for an in-phase/quadrature phase (I/Q) imbalance in a communications receiver. The communications receiver may utilize information gained from observing one or more observational interferers to adjust one or more sequence parameters, such as gain and/or phase to provide some examples. The one or more observational interferers including one or more images outside of a desired frequency band of interest. The communications receiver provides one or more sequence parameter values to allow for real-time adjustment of the sequence parameters to compensate for the I/Q imbalances. | 2010-12-30 |
20100329393 | MOBILE COMMUNICATION SYSTEM, RECEIVING DEVICE, AND METHOD - A transmitting device Fourier-transforms symbols in a transmission symbol sequence, maps the Fourier-transformed symbols to subcarriers, inverse-Fourier-transforms the mapped symbols, and transmits the inverse-Fourier-transformed symbols from multiple transmitting antennas. A receiving device Fourier-transforms received signals, extracts signal components mapped to the subcarriers, and estimates the symbols transmitted via the subcarriers by applying a QR decomposition algorithm to the extracted signal components. The receiving device obtains a unitary matrix Q | 2010-12-30 |
20100329394 | APPARATUS AND METHOD FOR ESTIMATING I/Q UNBALANCE PARAMETERS IN OFDM RECEIVER - Provided are an apparatus and a method for estimating I/Q unbalance parameters in an OFDM receiver. The apparatus includes an unbalance parameter estimator and an I/Q unbalance compensator. The unbalance parameter estimator estimates an amplitude difference and a phase difference depending on positions of pilot tones in a preamble of a received signal. The I/Q unbalance compensator compensates for an I/Q unbalance using the amplitude difference and the phase difference estimated by the unbalance parameter estimator. | 2010-12-30 |
20100329395 | METHOD AND APPARATUS FOR SYMBOL DECODING USING TREE PRUNING BASED SPHERE SEARCH - An apparatus and method for symbol decoding comprising selecting a degree of freedom (DOF) parameter for a noise vector; selecting a delta probability value; computing a cost function for a lattice point that is one of a discrete set of nominal codeword positions in a hypersphere; selecting a sphere decoding radius based on the DOF parameter, the delta probability value and the cost function; and decoding a symbol using the sphere decoding radius. And, the apparatus and method comprising setting pre-defined threshold probabilities; computing threshold radii based on the pre-defined threshold probabilities; setting an initial sphere radius square to the value of a first threshold radii; finding the Lattice point based on the initial sphere radius square; computing an updated sphere radius square as the minimum of either a cost function or a second threshold radii; and finding a next lattice point based on the updated sphere radius square. | 2010-12-30 |
20100329396 | Interference Detector and Method Thereof - An interference detector receives a data stream including predetermined symbols that include a first data and a second data, between which is a frequency offset. The interference detector includes a correlation apparatus that generates a first correlation result and a second correlation result according to the data stream; a power searching unit, coupled to the correlation apparatus, that generates a first maximum correlation result and a first neighboring power according to the first correlation result, and generates a second maximum correlation result and a second neighboring power according to the second correlation result; and a determining unit, coupled to the power searching unit, that generates a determination result according to the first maximum correlation result, the first neighboring power, the second maximum correlation result and the second neighboring power to indicate existence of interferences. | 2010-12-30 |
20100329397 | ESTIMATION AND COMPENSATION METHOD FOR IQ IMBALANCE - The present invention relates to a method and apparatus for estimating and compensating IQ imbalance of a baseband sampling digital communication receiver in digital time domain. Specifically, after an analog-to-digital converter (ADC) in the baseband sampling system, a structure including a crosstalk gain estimator, a Q-path gain estimator, an IQ imbalance compensator, and a lock detector is utilized to execute IQ imbalance estimation and compensation. In contrast to real-time frequency domain estimator/compensator, the present invention requires very little or no additional memory and delay processing, and therefore provides the estimation apparatus and method with convenience. | 2010-12-30 |
20100329398 | Receiver and method for performing interference cancellation - To address the need for new interference cancellation techniques that are able to deliver adequate performance but with reduced processing requirements, various embodiments are described. In some embodiments, a receiving device demodulates and decodes ( | 2010-12-30 |
20100329399 | Method and Apparatus for Interference Post-Compensation Using a Bandwidth-Adaptive Postcoder Interface - In a communication system, a postcoder is coupled between first and second portions of each of a plurality of receivers. The postcoder is configured to receive an adaptive index representation of a scaled signal associated with the first portion of a first one of the receivers, and to process the adaptive index representation using an adjusted postcoder coefficient to generate a postcompensation signal. The postcompensation signal is supplied by the postcoder to the second portion of a second one of the receivers for use in postcompensation of at least one signal received by the second receiver. | 2010-12-30 |
20100329400 | ESTIMATING METHOD FOR MAXIMUM CHANNEL DELAY AND CYCLIC PREFIX (CP) AVERAGING METHOD IN OFDM RECEIVER - An estimating method for maximum channel delay and cyclic prefix (CP) averaging method in orthogonal frequency division multiplexing (OFDM) receiver are described. Specifically, the estimating method performs the estimation of the maximum channel delay by adding the CP and the main OFDM signal for increasing the signal-to-noise ratio (SNR) and for reducing the inter-carrier interference (ICI). The CP averaging method is used to acquire a portion of the CP by using the maximum channel delay so as to increase the performance of the OFDM receiver. | 2010-12-30 |
20100329401 | SYSTEM AND METHOD FOR CONTROLLING COMBINED RADIO SIGNALS - A method for controlling a combined waveform, representing a combination of at least two signals having orthogonal frequency multiplexed signal components, comprising: receiving information defining the at least two signals; transforming the information defining each signal to a representation having orthogonal frequency multiplexed signal components, such that at least one signal has at least two alternate representations of the same information, and combining the transformed information using the at least two alternate representations, in at least two different ways, to define respectively different combinations; analyzing the respectively different combinations with respect to at least one criterion; and outputting a respective combined waveform or information defining the waveform, representing a selected combination of the transformed information from each of the at least two signals selected based on the analysis. | 2010-12-30 |
20100329402 | Advanced Signal Processors for Interference Cancellation in Baseband Receivers - A multi-mode receiver includes a channel decomposition module (e.g., a Rake receiver) for separating a received signal into multipath components, an interference selector for selecting interfering paths and subchannels, a synthesizer for synthesizing interference signals from selected sub channel symbol estimates, and an interference canceller for cancelling selected interference in the received signal. At least one of the channel decomposition module, the synthesizer, and the interference canceller are configurable for processing multi-mode signals. | 2010-12-30 |
20100329403 | DYNAMIC QUADRATURE CLOCK CORRECTION FOR A PHASE ROTATOR SYSTEM - A system and method for closed loop clock correction includes adjusting two or more input signals comprising at least one in-phase clock and one quadrature clock, and applying adjusted quadrature clock signals to a device capable of generating a 4-quadrant interpolated output clock phase. An interpolated output clock phase is delayed to form a clock for a measurement device. Two or more adjusted input signals are measured on a measurement device over a range of interpolated output clock phases. Errors are determined on the in-phase clock and the quadrature clock using sampled information from the measurement device. The in-phase clock and the quadrature clock are adapted using determined error information. | 2010-12-30 |
20100329404 | SYSTEM FOR SYNCHRONIZING CLOCK - A system for synchronizing clock, which is used to realize the synchronization between a radio frequency module and a base band module in a base station, comprises: one or more time generators, located on the radio frequency module side, configured to generate a synchronous signal according to an external clock signal, and to send the synchronous signal to a time distributor; the time distributor, located on the base band module side, configured to generate a synchronous clock according to a synchronous signal from one of the one or more time generators, and to adjust the synchronous clock according to a communication delay between the time generator which outputs the synchronous signal and the time distributor, and to send the synchronous clock adjusted to the radio frequency module and the base band module to realize the synchronization between the radio frequency module and the base band module. | 2010-12-30 |
20100329405 | TIME-FREQUENCY SYNCHRONIZATION AND FRAME NUMBER DETECTION FOR DMB-T SYSTEMS - A DMB-T receiver supports a single carrier (SC) form of modulation and a multi-carrier form of modulation such as orthogonal frequency division multiplexing (OFDM). Upon receiving a broadcast signal, the DMB-T receiver downconverts the received broadcast signal to a received base-band signal and determines frame timing synchronization from the received signal as a function of frame header mode | 2010-12-30 |
20100329406 | ISOTOPE PRODUCTION SYSTEM WITH SEPARATED SHIELDING - An isotope production system that includes a cyclotron having a magnet yoke that surrounds an acceleration chamber. The cyclotron is configured to direct a particle beam from the acceleration chamber through the magnet yoke. The isotope production system also includes a target system that is located proximate to the magnet yoke. The target system is configured to hold a target material and includes a radiation shield that extends between the magnet yoke and the target location. The radiation shield is sized and shaped to attenuate gamma rays emitted from the target material toward the magnet yoke. The isotope production system also includes a beam passage that extends from the acceleration chamber to the target location. The beam passage is at least partially formed by the magnet yoke and the radiation shield of the target system. | 2010-12-30 |
20100329407 | MAGNETIC CONFINEMENT DEVICE - Disclosed is a device comprising a chamber enclosed by walls about a central axis. The chamber has an inner radius and an outer radius relative to the central axis and is configured to magnetically contain a core plasma. The device is further comprised of a divertor plate configured for receiving exhaust heat. The divertor plate has a divertor radius relative to the central axis. The divertor radius is greater than or equal to the sum of a plasma minor radius and a major radius of the peak point closest to the corresponding divertor plate. The device can be used for containing a fusion plasma, as a compact fusion neutron source, or as a compact fusion energy source. Methods of exhausting heat from such a device when plasma is present therein are also described. This abstract is intended for use as a scanning tool only and is not intended to be limiting. | 2010-12-30 |
20100329408 | Systems, Apparatuses and Methods of Gripping, Cutting and Removing Objects - A system includes a first platform movably mounted to a first rail assembly, a second rail assembly coupled to and supported by the first platform, and a second platform movably mounted to the second rail assembly. At least one articulating arm is coupled to the second platform, and a gripping and cutting apparatus is coupled to and supported by the at least one articulating arm. An apparatus includes first and second gripping mechanisms each configured for selective actuation between positions for gripping and releasing an object, and a cutting mechanism positioned generally between the first and second gripping mechanisms, and configured to cut the object when gripped on either side by the gripping mechanisms. The system and apparatus can be used to remove feeder pipes of a nuclear reactor power plant. | 2010-12-30 |
20100329409 | DRAIN SUMP OF NUCLEAR REACTOR CONTAINMENT VESSEL - A drain sump of a reactor containment vessel having a containment vessel floor down below a reactor pressure vessel, and includes a heat-proof sump cover and two or more drain flow paths. The drain sump is arranged inside the containment vessel floor. The heat-proof sump cover has a thickness, and covers an upper part of the drain sump. The thickness allows a top surface of the sump cover to lie in the same surface as a top surface of the containment vessel floor. The drain flow paths pass through the sump cover in a thickness direction to flow water therethrough and solidify a molten corium therein. The molten corium is produced in the unlikely event of a severe accident. | 2010-12-30 |
20100329410 | BASKET AND pH ADJUSTING DEVICE - Disclosed is a basket | 2010-12-30 |
20100329411 | DYNAMIC PORT FOR MEASURING REACTOR COOLANT PUMP BEARING OIL LEVEL - A dynamic port that extends from the bottom wall of an oil reservoir that surrounds the lower guide bearing of a reactor coolant pump and is in fluid communication within an oil level gauge. The dynamic port is rotatable into and out of the oil flow path to adjust the dynamic oil level shown by the oil level gauge when the pump is at operating speed to be substantially equal to the static oil level when the motor is at rest. | 2010-12-30 |
20100329412 | SYSTEM FOR DAMPENING VIBRATION - An embodiment of the present invention takes the form of a system that may reduce the level of flow-induced vibration (FIV) experienced by a jet pump assembly or other similar object within a pressure vessel. Essentially, an embodiment of the present invention may reduce the slip-joint leakage, which may be a cause of the FIVs, by adding a flow-limiting component to an outlet of the slip joint. This component may take the form of a collar, channel, and/or other component that may be connectable to a component of the jet pump assembly. After installation, an embodiment of the present invention may lower the amplitude of, and/or change the frequency of, the FIVs experienced by the jet pump assembly. | 2010-12-30 |
20100329413 | COMPACT MICROBEAM RADIATION THERAPY SYSTEMS AND METHODS FOR CANCER TREATMENT AND RESEARCH - The present subject matter relates to compact, non-synchrotron microbeam radiation therapy (MRT) systems and methods for cancer research and treatment based on a carbon nanotube distributed x-ray source array technology. The systems and methods can deliver microscopically discrete x-ray radiation at peak dose rate of 10 Gy per second or higher. The x-ray radiation can be provided by a spatially distributed x-ray source array. The technology can be used, for example and without limitation, for human cancer treatment, for intra-operative radiation therapy, and for pre-clinical cancer research on animal cancer models. | 2010-12-30 |
20100329414 | IMAGE GUIDED RADIATION THERAPY - Radiation therapy of a lesion in a part of a patient is carried out by maintaining the patient on a patient support table in fixed position using an immobilization device while the table is rotated between a magnetic resonance imaging system, a CT imaging system for generating a 360 degree scanned image of the patient at the location of the lesion and the radiation therapy system for generating a beam of radiation for treatment of the lesion and for scanning the beam 360 degrees around the lesion. The MR image locates the lesion and the CT system is used to calculate the treatment. Registration between the MR image, the CT image and the radiation treatment is provided by the fixed position of the part of the patient on the table which is held fixed using an immobilization system suitable for the part concerned which may include a molded head mask where the head is involved. | 2010-12-30 |
20100329415 | Method to inspect a blade - A method of inspecting a quality of a blade, especially of a wind-turbine-blade, is provided. At least parts of the blade are inspected by a computer-tomography-method using radiation. The radiation is directed through the blade for the inspection. A transmitter sends the radiation through the blade. A receiver receives the sent radiation after its passing through the blade. The position of the transmitter, of the receiver and/or of the blade is changed in relation to each other in order to perform the inspection of the blade. | 2010-12-30 |
20100329416 | X-RAY IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND COMPUTER PROGRAM - An X-ray imaging apparatus includes an X-ray source including a plurality of X-ray focuses, an X-ray detector which detects X-rays emitted from the X-ray focuses and transmitted through an object, and a control unit which controls the X-ray source and the X-ray detector. The X-ray imaging apparatus selects a pair of X-ray focuses, of X-ray focuses of the plurality of X-ray focuses which project images on the X-ray detector through a region of interest which is an imaging region of the object, from which emitted X-rays define an intersecting angle coinciding with a predetermined angle in the region of interest, and decides an X-ray focus to be used for imaging from X-ray focuses between the selected pair of X-ray focuses. An X-ray image is captured by emitting X-rays from the decided X-ray focus and causing the X-ray detector to detect the X-rays. | 2010-12-30 |
20100329417 | MONOFILAMENT ALLOWING CONTRAST X-RAY RADIOGRAPHY - Disclosed is a monofilament allowing contrast X-ray radiography. At least part of the monofilament is formed of a thermoplastic resin containing a radiopaque agent. The monofilament contains the radiopaque agent in the thermoplastic resin in a content of 30 to 80% by mass, and has a Young's modulus of 0.1 to 5.0 cN/dtex and a fineness of 500 to 20000 dtex. | 2010-12-30 |
20100329418 | SYSTEM AND METHOD FOR PERFORMING NUCLEAR MAMMOGRAPHY IMAGING - A system and method for performing molecular imaging of an anatomy of interest is provided. The molecular imaging system includes a gantry, a first gamma camera coupled to the gantry, and a second gamma camera coupled to the gantry, the first and second cameras are positionable in an L-mode imaging configuration, the first and second gamma cameras are configured to immobilize an anatomy of interest therebetween in the L-mode configuration. The molecular imaging system is also configured to operate in an H-mode imaging configuration wherein the first and second gamma cameras are configured to immobilize an anatomy of interest therebetween in the H-mode configuration. | 2010-12-30 |
20100329419 | GAMMA CAMERA FOR PERFORMING NUCLEAR MAMMOGRAPHY IMAGING - A gamma camera for use in a molecular imaging system includes a housing, a cadmium zinc telluride (CZT) camera disposed within the housing, and at least one retractable wall coupled to the housing and adapted to secure an anatomy of interest in a field-of-view of the gamma camera. The gamma camera also includes a chamfered edge to enable the gamma camera to contact a second gamma camera when the gamma camera is positioned in an L-mode imaging configuration. | 2010-12-30 |
20100329420 | Relocatable X-Ray Imaging System and Method for Inspecting Commercial Vehicles and Cargo Containers - A readily relocatable X-ray imaging system for inspecting the contents of vehicles and containers, and a method for using the same. In a preferred embodiment, the system is relatively small in size, and is used for inspecting commercial vehicles, cargo containers, and other large objects. The X-ray imaging, system comprises a substantially arch-shaped collapsible frame having an X-ray source and detectors disposed thereon. The frame is preferably collapsible via a plurality of hinges disposed thereon. A deployment means may be attached to the frame for deploying the frame into an X-ray imaging position, and for collapsing the frame into a transport position. | 2010-12-30 |
20100329421 | SUPPRESSION OF DIRECT DETECTION EVENTS IN X-RAY DETECTORS - According to an embodiment of the invention, signals coming from a number of pixels or sub-pixels are compared and those signals from pixels or sub-pixels, which are substantially brighter than the other pixels in the comparison, are excluded from contributing to the output signal, to suppress direct detection events in X-ray detectors. For this an X-ray detector apparatus ( | 2010-12-30 |
20100329422 | Radiotherapeutic apparatus - A radiotherapeutic apparatus comprises a source able to emit a beam of therapeutic radiation along a beam axis, a multi-leaf collimator arranged to collimate the beam to a desired shape, wherein the source is rotateable about a rotation axis that is substantially orthogonal and intersects with the beam axis thereby to describe an arc around that axis, and further comprises a control means able to control the dose/time rate of the source, the rotation speed of the source, and the multi-leaf collimator position. The control means is arranged to receive a treatment plan in which the arc is divided into a plurality of notional arc-segments, and specifying the total dose for the arc-segment and a Start and end MLC position. It then controls the source in accordance with that plan over an first arc-segment such that at least one of the rotation speed and dose rate are constant and the multi-leaf collimator changes shape, and a second arc segment such that at least one of the rotation speed and dose rate are constant at a level different to the constant level adopted during the first arc-segment. It achieves this by calculating the total time required for the arc segment for a plurality of factors including an MLC leaf movement from a prescribed position at the start of the arc-segment to a prescribed position at the end of the arc-segment, at a maximum leaf speed, rotation of the source from the start to the end of the arc-segment at a maximum source rotation speed, delivery of the dose at a maximum dose rate per time, selecting the factor dictating the longest time, and Controlling the apparatus so that the selected factor operates at its respective maximum and the remaining factors are operated at a reduced rate selected to match that longest time, wherein the total time required for the arc segment for at least one factor relating to a moving geometry item is the greater of (a); a time required to complete the segment at a continuous defined upper speed for the geometry item and (b) a time required to accelerate the geometry item until it is travelling at the defined upper speed. Generally, the time required to accelerate the geometry item to the defined upper speed will include a time to accelerate the geometry item to that speed, and a further time to accelerate the geometry item beyond that speed and subsequently decelerate it until travelling at that speed. | 2010-12-30 |
20100329423 | IRRADIATION SYSTEM INCLUDING AN ELECTRON-BEAM SCANNER - A property of a treatment beam is controlled during a scanning period. A portion of a region is exposed to an imaging x-ray beam during a scanning period, the imaging x-ray beam being generated by an electron-beam scanner. X-ray radiation from the region is detected, the x-ray radiation representing an attenuation of the imaging x-ray beam caused by the portion of the region. A first image of the portion of the region is generated based on the detected x-ray radiation. A characteristic of the portion of the region is determined from the generated first image. An input derived from the characteristic is generated, the input configured to cause a source of a treatment beam to modify a property of the treatment beam. The source of the treatment beam modifies a property of the treatment beam during the scanning period by providing the input to the source of the treatment beam. | 2010-12-30 |
20100329424 | X-RAY DIFFRACTION IMAGING SYSTEM AND METHOD FOR OPERATING THE SAME - A method for operating an X-ray diffraction imaging (XDI) system to scan an object includes generating an X-ray beam from at least one source focus at a first focus location, and receiving first scatter radiation at a first scatter angle at a scatter detector. The first scatter radiation is produced when the X-ray beam interacts with the object. The method further includes displacing the at least one source focus from the first focus location to a second focus location, generating a displaced X-ray beam from the at least one source focus at the second focus location, and receiving second scatter radiation at a second scatter angle at the scatter detector. The second scatter radiation is produced when the displaced X-ray beam interacts with the object. An identification of the object based on one of the first scatter radiation and the second scatter radiation is output. | 2010-12-30 |
20100329425 | READOUT ELECTRONICS FOR PHOTON COUNTING AND ENERGY DISCRIMINATING DETECTORS - A data acquisition system includes a charge-sensitive amplifier (CSA) configured to receive a charge from an x-ray detector, the CSA includes a high-gain electronic voltage amplifier, an electrical energy storage device coupled with the amplifier, and an electrical resistor coupled with the amplifier. The data acquisition system includes a baseline sampling circuit configured to receive an output from the CSA and to sample a baseline signal from the CSA, at least one discriminator coupled to an output of the CSA and to an output of the baseline sampling circuit, the at least one discriminator configured to output a voltage if the output of the CSA exceeds a threshold, and a counter coupled to an output of the discriminator and configured to output a digital signal indicative of a photon count received at the x-ray detector and based on the output from the CSA and on the signal from the CSA. | 2010-12-30 |
20100329426 | MOBILE X-RAY APPARATUS - The present invention is directed to a mobile X-ray apparatus having a main unit, a moving carriage for installing the main unit, a column standing on the moving carriage, an X-ray generator supported by the column, and an image reader for reading X-ray image information from an imaging plate in which the X-ray image information is stored. The X-ray apparatus is provided with a brake for putting a brake on the moving carriage, a brake control means for applying the brake or releasing the brake, a read control means for prohibiting reading by the image reader, while the brake control means releases the brake, a cassette loading slot for inserting a cassette enclosing the imaging plate into the image reader, a blocking member for closing at least a part of the cassette loading slot to block the cassette to be inserted, and an open and close control means for closing the blocking member to prevent insertion of the cassette while the read control means prohibits reading.) | 2010-12-30 |
20100329427 | MOBILE X-RAY APPARATUS - A mobile X-ray apparatus including a main body portion, a mobile dolly on which the main body portion is mounted, a support pole that is erectly provided on the mobile dolly, an X-ray generator supported on the support pole, and an image reading device for reading image information from an imaging plate in which X-ray image information is stored, and further including detecting means for detecting whether the mobile dolly is being moved, and reading control means for prohibiting reading of the image reading device when it is detected by the detecting means that the mobile dolly is being moved. | 2010-12-30 |
20100329428 | Grid control system for eliminating soft radiation emissions from an x-ray tube - A system and method for controlling the radiation emissions from an x-ray tube having an anode, a cathode, and a grid is disclosed. The system and method uses a continuous high voltage across the cathode and the anode of the x-ray tube, so that a high voltage is continuously applied to the x-ray tube between the cathode and the anode. The flow of electrons between the cathode and the anode is then controlled by a pulsed high voltage to the grid, the pulsed high voltage being of substantially the same magnitude as the continuous high voltage and being switched at a frequency of about one microsecond to provide alternate the polarity of the switched high voltage to the grid, so that voltage between the cathode and the anode is switched by the voltage applied to the grid by the source of pulsed high voltage, so that soft radiation emissions from the x-ray tube are minimized or eliminated. | 2010-12-30 |
20100329429 | MULTI X-RAY GENERATOR AND MULTI X-RAY IMAGING APPARATUS - A compact apparatus can form multi X-ray beams with good controllability. Electron beams (e) emitted from electron emission elements ( | 2010-12-30 |
20100329430 | ACTUAL SKIN INPUT DOSE RATE COMPUTING DEVICE AND METHOD AND X-RAY MACHINE - An actual skin input dose rate computing device includes a distance sensor disposed in a direction directly opposite to said subject and close to the center of an X-ray beam but not within said X-ray beam and an angle sensor disposed at said X-ray source as well as a computing unit. | 2010-12-30 |
20100329431 | DENTAL X-RAY DEVICE AND X-RAY SENSOR - The dental radiography device comprises an X-ray sensor ( | 2010-12-30 |
20100329432 | Positioning an Object Based on Aligned Images of the Object - Embodiment of the invention describes a system and a method for positioning an object from a first pose to a second pose. The method displays concurrently a first image and a second image on a display device, wherein the first image and the second image represent respectively the first pose and the second pose of the object. The method updates, in response to a change in a pose of the display device, the second image such that an alignment of the first image and the second image on the display device depends on the change in the pose of the display device, and positions the object from the first pose to the second pose based on the change in the pose of the display device. | 2010-12-30 |
20100329433 | Method and system for enabling emergency calling from nomadic VoIP extension telephones - A method and system for handling calls to emergency telephone numbers by a VoIP telephone that is configured as an extension to a home telephone. The VoIP telephone is provided with a home telephone number that is different than the home telephone number. The location of the VoIP telephone is maintained in a caller ID location database and is regularly updated when necessary. Location updates are made at least when the VoIP telephone registers using a different IP address than was used for the most recent communication. The system is configured to enable the VoIP telephone to ring when a call is placed to the home telephone number. In addition, non-emergency calls from the VoIP telephone are accompanied by caller ID information associated with home telephone. In this way, VoIP telephones may be configured as extension telephones and used to make emergency calls, even when being used nomadically. | 2010-12-30 |
20100329434 | MESSAGING SYSTEMS AND METHODS - Managing voice messages across multiple voicemail systems. A server acts as a gateway and interacts with multiple voicemail systems and with multiple user devices. The server can retrieve voice messages from one voicemail system and transmit the retrieved voice messages to another separate voicemail system without user assistance. The voice messages are transcoded as necessary. The server also enables a recipient to generate a reply voice message that can be delivered to the original sender's device or delivered to the sender in another manner, such as a Vnote, SMS or an email. | 2010-12-30 |
20100329435 | Prioritized Prompt Ordering and Call Processing In Interactive Voice Response Systems - A system and method for processing a call to a destination associated with multiple group members in a unified messaging system by determining a prioritized order of the group members for presentation to caller and receiving a selection from the caller. The order of the group members can be determined based on call histories, address books, and distribution lists of the calling party and the group members of the destination. A weighted score is computed for each group member, and the group members are sorted based on the weighted scores. The sorted list of group members is then presented to the calling party for selection. Based on the calling party's selection the unified messaging system can further process the call. | 2010-12-30 |
20100329436 | TELEPHONE EXCHANGE APPARATUS AND INCOMING CALL TRANSFER CONTROL METHOD OF THE APPARATUS - According to one embodiment, a telephone exchange apparatus includes a memory and a calculation module and a controller. The memory stores data associating a caller ID specifying a caller and a recipient ID specifying a transfer operation source with frequency of transfer for each of at least one of a telephone terminal and a group to be a transfer destination. The calculation module calculates a percent of transfer from frequency of transfer in a predetermined period and store the percent of transfer for each of the caller ID in the memory. The controller refers the memory based on the caller ID and the recipient ID included in an incoming call, and performs incoming call control to at least one of a telephone terminal and a group corresponding to a transfer destination including a percent of transfer which is larger than a predetermined value based on a reference result. | 2010-12-30 |
20100329437 | Enterprise Speech Intelligence Analysis - A method includes accepting, via an input interface, a caller identifier parameter and a target value of at least one call series parameter; identifying, using a data processor, a plurality of calls each associated with the caller identifier parameter from amongst a set of calls stored in a call center database; analyzing, using the data processor, the identified plurality of calls to determine a value of the at least one call series parameter for the identified plurality of calls; comparing, using the data processor, the determined value of the at least one call series parameter with the target value of the at least one call series parameter; and defining, using the data processor, the identified plurality of calls as a call series based at least in part on results of the comparing. | 2010-12-30 |
20100329438 | METHOD AND APPARATUS FOR USER EQUIPMENT TO PROCESS CALLING PARTY INFORMATION - A method and an apparatus for a User Equipment (UE) to process calling party information are disclosed. The method includes: obtaining capability information of a called UE; and sending calling party information compliant with the capability information to the called UE so that the called UE can process the calling party information. Through the embodiments of the present invention, the calling party information compliant with the capability information of the called UE is sent according to the capability information, and therefore, the called UE can process the calling party information normally and avoid sending futile information, thus reducing waste of information resources and improving the user experience. | 2010-12-30 |
20100329439 | METHOD AND SYSTEM FOR DETERMINING AUTHORIZATION LEVELS IN A VIRTUAL PRIVATE NETWORK (VPN) - Example methods, apparatus and articles of manufacture to determine authorization levels in a virtual private network are disclosed. A disclosed example method includes determining whether a call originated from an originating station associated with a virtual private network, the call originating via a private branch exchange associated with the virtual private network by a first user of a plurality of users associated with the virtual private network, querying a private-number table based on at least one of a switch identifier representing a service switching point, a trunk group identifier representing the private branch exchange, or an originating station identifier representing the originating station to obtain a private number assigned to the first user, and providing an authorization level associated with the private number to the service switching point, the service switching point to process the call according to the authorization level. | 2010-12-30 |
20100329440 | Background Training for Conferencing or Telephony Acoustic Echo Canceller - In an electronic device having an acoustic echo canceller and being capable of implementing audio applications and at least one of a conferencing application and a telephony application, there is provided a background training method for the acoustic echo canceller. The method includes the step of utilizing ( | 2010-12-30 |
20100329441 | Remotely controlled speakerphone providing access security - A phone having activation by password or control codes that are transmitted by an authorized caller for validation of an incoming call and for control of the phone. | 2010-12-30 |
20100329442 | SYSTEM AND METHOD FOR PROVIDING RBT IN COMMUNICATION NETWORK - Disclosed are systems and methods for providing ring back tones in a communication network. At first, a ring back tone device for storing and playing the ring back tone customized by a subscriber is established in the communication network. Whether a subscriber is a ring back tone service register subscriber is judged with a certain triggering mode, such as intelligent network triggering, signaling interception triggering, call forwarding triggering or switching device triggering. If it is judged the subscriber is a ring back tone service registered subscriber, a connection between the originating switching device and the terminating switching device and a connection between a switching device and the ring back tone device are established. When the called terminal is idle, the ring back tone device provides a piece of customized ring back tone to the calling subscriber for replacing traditional ring back tone. | 2010-12-30 |
20100329443 | System and Method for Providing Mobile Based Services for Hotel PBX - The invention relates to a method and system for providing mobile based services for hotel PBX having an external number assigned which includes the steps of providing each hotel room which provides the mobile based service with at least one mobile station comprising a SIM, each SIM storing a different IMSI number; assigning a VPN to the hotel; assigning each IMSI number of each mobile station to a different MSISDN that can only be used internally in the MNO network and that cannot be dialed from other telephones; and assigning each MSISDN to a different extension number that can be used as a room extension number and that corresponds to the VPN number of the VPN of the hotel. The invention is advantageous in that it solves problems of prior art systems by making use of a mobile PBX, so that every hotel will have its own VPN numbers that can be used as room extensions. | 2010-12-30 |
20100329444 | Crosstalk Estimation and Power Setting Based on Interpolation in a Multi-Channel Communication System - An access node of a communication system comprises a plurality of transmitters adapted for communication with at least one receiver over a plurality of channels. The access node is operative to obtain estimated crosstalk coefficients between a joining channel and an active channel, and to set a power level of at least one signal transmitted over the joining channel based on the estimated crosstalk coefficients. The access node obtains the estimated crosstalk coefficients by first obtaining a subset of the estimated crosstalk coefficients and subsequently determining additional ones of the estimated crosstalk coefficients by applying an interpolation process to the estimated crosstalk coefficients in the subset. The access node sets the power level of the signal transmitted over the joining channel in a manner that ensures maintenance of a desired performance characteristic for the active channel. | 2010-12-30 |
20100329445 | Surge Immunity Circuit for Telecom DDA - In described embodiments, a data communication device employing, for example, a modem and a data access arrangement (DAA) electrically connected to a telephone network has an increased surge immunity through use of improved hook switch driver and line modulation driver circuitry. In accordance with described embodiments, hook switch driver circuitry exhibits decreased surge power dissipation by maintaining the hook switch driver transistors in saturation at higher currents while reducing the collector-emitter voltage across hook switch driver transistors, and line modulation driver circuitry exhibits decreased total surge power dissipation by i) limiting surge voltage ii) over voltage stress of the line driver transistor. | 2010-12-30 |
20100329446 | LOGIC CIRCUIT AND METHOD FOR CALCULATING AN ENCRYPTED RESULT OPERAND - A logic circuit for calculating an encrypted dual-rail result operand from encrypted dual-rail input operands according to a combination rule includes inputs for receiving the input operands and an output for outputting the encrypted result operand. Each operand may comprise a first logic state or a second logic state. The logic circuit comprises a first logic stage connected between the inputs and an intermediate node and a second logic stage connected between the intermediate node and the output. The logic stages are formed to calculate the first or second logic state of the encrypted result operand from the input operands according to the combination rule and to maintain or change exactly once the logic state of the encrypted result operand, independently of an order of arrival of the encrypted input operands, depending on the combination rule, in order to impress the calculated first logic state or second logic state on the output. | 2010-12-30 |
20100329447 | ENCRYPTION APPARATUS, DECRYPTION APPARATUS, KEY GENERATION APPARATUS, AND PROGRAM - An encryption apparatus includes a plaintext embedding unit that embeds a message m as a coefficient of a three-variable plaintext polynomial m(x,y,t), an identification polynomial generating unit that generates a three-variable identification polynomial f(x,y,t), a polynomial generating unit that randomly generates three-variable polynomials r | 2010-12-30 |
20100329448 | Method for Secure Evaluation of a Function Applied to Encrypted Signals - Embodiments of the invention describe a system and a method for determining securely a result of applying a function to a first encrypted signal and a second encrypted signal resulted from encrypting a first signal and a second signal respectively, The method expresses the function as a linear combination of homomorphic components, wherein a homomorphic component is an algebraic combination of the first signals and the second signal such that an encrypted result of the algebraic combination is suitable to be calculated directly from the first encrypted signal and the second encrypted signal using homomorphic properties. Next, the method determines encrypted results of the homomorphic components from the first encrypted signal and the second encrypted signal, and combines the encrypted results of the homomorphic components according to the linear combination to produce the encrypted result of the function. The method is executed by a plurality of processors. | 2010-12-30 |
20100329449 | ADJUSTMENT-VALUE-ATTACHED BLOCK CIPHER APPARATUS, CIPHER GENERATION METHOD AND RECORDING MEDIUM - There is provided an adjustment-value-attached block cipher apparatus realizing block cipher processing that the amount of processing is small in adjustment-value-attached block cipher. The adjustment-value-attached block cipher apparatus includes: an encryption section performing encryption by a block cipher system; an input section accepting plaintext, an adjustment value and instruction information indicating first or second cipher processing; and a generator dividing the adjustment value into first and second adjustment values, encrypting the first adjustment value using the encryption section to generate cipher for offset, determining an offset value according to the cipher for offset and the second adjustment value, determining the sum of the offset value and the plaintext, and encrypting the sum using the encryption section to generate first ciphertext when the instruction information indicates the first cipher processing, and encrypting the plaintext using the encryption section to generate second ciphertext when the instruction information indicates the second cipher processing. | 2010-12-30 |
20100329450 | INSTRUCTIONS FOR PERFORMING DATA ENCRYPTION STANDARD (DES) COMPUTATIONS USING GENERAL-PURPOSE REGISTERS - Some embodiments of the present invention provide a processor, which includes a set of general-purpose registers and at least one execution unit. Each general-purpose register in the set of general-purpose registers is at least 64 bits wide, and the execution unit supports one or more Data Encryption Standard (DES) instructions. Specifically, the execution unit may support a permutation-rotation instruction for performing DES permutation operations and DES rotation operations. The execution unit may also support a round instruction to perform a DES round operation. Since the DES instructions use general-purpose registers instead of special-purpose registers to perform DES-specific operations, the processor's circuit complexity and area are reduced. Furthermore, in some embodiments, since the DES instructions require at most two operands, the number of bits required to specify the location of the operands are reduced, thereby enabling a larger number of instructions to be supported by the processor. | 2010-12-30 |
20100329451 | Cipher Implementation - At least one of a keystream and a message authentication code are generated with a partial KASUMI block cipher, without utilizing a full KASUMI block cipher. | 2010-12-30 |
20100329452 | Generation of key streams in wireless communication systems - Security key stream generation in a communication apparatus. The method includes using a count parameter and a bearer parameter as input, value of said count parameter being incremented as security key streams are generated and value of the count parameter having a finite maximum value; detecting value of the count parameter reaching a predetermined value; and responsive to the detecting, changing value of the bearer parameter into a new value, and resetting value of the count parameter to a value below the maximum value. | 2010-12-30 |
20100329453 | ROUNDING FOR SECURITY - A system may generate from a first value, based on rounding information, a first security key that matches a second security key whenever the first value and a second value from which the second security key is generated differ by less than a non-zero predetermined amount. The second security key may be generated from the second value rounded to a multiple of a rounding interval that is nearest to the second value. The rounding information may include a rounding direction indication. The rounding direction indication may indicate the direction in which the second value is rounded to the multiple of the rounding interval nearest to the second value. | 2010-12-30 |
20100329454 | ENCRYPTION PARAMETER SETTING APPARATUS, KEY GENERATION APPARATUS, CRYPTOGRAPHIC SYSTEM, PROGRAM, ENCRYPTION PARAMETER SETTING METHOD, AND KEY GENERATION METHOD - A sophisticated cryptographic system is realized without using a pairing operation on a composite order. A random matrix selection unit | 2010-12-30 |
20100329455 | Cryptographic key generation using a stored input value and a stored count value - Embodiments of an invention for cryptographic key generation using a stored input value and a stored count value have been described. In one embodiment, a processor includes non-volatile storage storing an input value and a count value, and logic to generate a cryptographic key based on the stored input value and the stored count value. | 2010-12-30 |
20100329456 | SEMICONDUCTOR DEVICE INCLUDING ENCRYPTION SECTION, SEMICONDUCTOR DEVICE INCLUDING EXTERNAL INTERFACE, AND CONTENT REPRODUCTION METHOD - A secure LSI device | 2010-12-30 |
20100329457 | METHOD FOR DISPLAYING A VIDEO OF A SCENE - Method of displaying a video of a scene onto a display with enhanced image quality, the video of the scene having first subframes and second subframes wherein the first subframes correspond to a first region of an image-presentation element of the display and the second subframes correspond to a second region of the image-presentation element; and selecting an access key corresponding to the first subframes. The method further includes encoding the access key into one or more of the second subframes; providing the second subframes to the display using a first data transport; the display, decoding the access key and receiving the corresponding first subframes using a second data transport different from the first data transport; and selectively providing the first and second subframes from the first and second data transports to corresponding regions in the image-presentation element of the display, whereby the displayed image has enhanced image quality. | 2010-12-30 |
20100329458 | SMARTCARD, HOLDER AND METHOD FOR LOADING AND UPDATING ACCESS CONTROL DEVICE FIRMWARE AND/OR PROGRAMS - A smartcard having a secure memory storing new firmware, new programs, and/or updated firmware and/or programs. A holder configured to receive the smartcard and to position the smartcard within communication range of an access control device. Methods for loading and/or updating access control device firmware, programs and/or software. | 2010-12-30 |
20100329459 | MULTI-COMMUNITY NETWORK WITH QUANTUM KEY DISTRIBUTION - This invention relates to an optical star network in which different communities of users, such as different businesses, are provided through use of quantum key distribution (QKD). At least one QKD device is located at the central hub of the star network and communicates with QKD devices at the endpoints to establish a separate quantum key, i.e. a cryptographic key established by QKD, with each endpoint. A separate key manager is provided for each different community and each key manager is arranged to use the appropriate quantum keys for endpoints within that community to deliver the same community key to each endpoint. This community key can be used by for encrypting network traffic between members of the same community with security. Traffic passing through the network switch is encrypted, but the community keys are not delivered via the switch and hence the switch an error in the switch does not compromise security. | 2010-12-30 |
20100329460 | METHOD AND APPARATUS FOR ASSURING ENHANCED SECURITY - Some embodiments provide a system to assure enhanced security, e.g., by assuring that information is not revealed over a covert channel. All communications between a source system and a destination system may pass through an intermediate system. In some embodiments, the intermediate system may perform an additional level of blinding to ensure that the source system does not covertly reveal information to the destination system. In some embodiments, the intermediate system may request the source system to perform a modification operation, and then check if the source system performed the modification operation. Examples of the modification operation include a blinding operation and a cryptographic hashing operation. | 2010-12-30 |
20100329461 | AUTOMATIC DETECTION OF WIRELESS NETWORK TYPE - A system and method for facilitating automatic detection of a type of wireless network is provided. In accordance with an aspect of the present invention, wireless network client(s) can automatically detect the “type” of a network (e.g., method of authentication and encryption) without requiring input from the user. For example, unencrypted network, WEP encrypted net work requiring a WEP key, WPA encrypted network requiring a pre-shared key, an IEEE 802.1x enabled net work supporting WPA anchor an IEEE 802.1x enabled network not supporting WPA. In accordance with an aspect of the present invention, a wireless network detection system having a connection component and a detection component is provided. The connection component facilitates connection of a client system to at least one of a plurality of wireless networks The detection component identities a type of an available wireless network. Identification can be based for example, upon information received in an information element and/or iterative probing of the wireless network beacon. | 2010-12-30 |
20100329462 | COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, AND COMMUNICATION METHOD - In a communication system, a first wireless communication apparatuses belonging to a communication group receives a connection request frame including a notifying security level from a second communication apparatus outside of the communication group. The first communication apparatus stores a reference security level peculiar to the communication group, which is selected from security levels depending on one of encryption methods including non-encryption and encryption strengths. In the first communication apparatus, the notifying security level is compared with the reference level, and a response frame including one of a connect rejection and a connection permission is described, is generated and transferred to the second communication apparatus. The connect rejection represents a rejection of connection to the second communication apparatus and the connection permission represents a permission of connection to the second communication apparatus. | 2010-12-30 |
20100329463 | GROUP KEY MANAGEMENT FOR MOBILE AD-HOC NETWORKS - Group key management in a mobile ad-hoc network (MANET) may be provided. Each network node associated with the MANET may comprise a group distribution key and a list of authorized member nodes from which a group key manager may be elected. The group key manager may periodically issue a new group key to be used in protecting communications among the network nodes. A compromised node may be excluded from receiving updated group keys and thus isolated from the MANET. | 2010-12-30 |
20100329464 | SYSTEMS AND METHODS FOR IMPLEMENTING SUPPLY CHAIN VISIBILITY POLICIES - Methods, storage medium and systems for implementing visibility policies within a supply chain include storing event data on a computer-readable storage medium of a first partner, the event data corresponding to at least one event associated with an item while the item was in possession of the first partner, the item having traveled through the supply chain, transferring evidence of possession between the plurality of partners as the item travels through the supply chain, and requesting access to the event data by a second partner. Implementations further include determining that the item traveled through a portion of the supply chain based on the evidence, authenticating an identity of the second partner, and authorizing the second partner to access the first event data, when it is determined that the item traveled through the portion of the supply chain and when the identity of the second party is authenticated. | 2010-12-30 |
20100329465 | METHOD OF TRIGGERING A KEY DELIVERY FROM A MESH KEY DISTRIBUTOR - A mesh station applying for access to a network includes a list of peer stations in messages of an authenticated key establishment protocol. A mesh key distributor derives a key delivery key and generates a top level key, and then delivers the top level key to the mesh station. Following the key establishment protocol, the mesh key distributor also creates pairwise keys for use between the mesh station and the peer stations listed in its peer list. The list of peers permits the identifier for the peer to be bound into the derived key, which helps ensure that the key used between each pair of peers is unique. Once the mesh key distributor finishes creating a key for one of the stations on the peer list, the mesh key distributor sends a message to the peer to initiate a key push. | 2010-12-30 |
20100329466 | DEVICE AND METHOD FOR CONVERTING SPATIAL AUDIO SIGNAL - An audio processor for converting a multi-channel audio input signal, such as a B-format sound field signal, into a set of audio output signals, such as a set of two or more audio output signals arranged for headphone reproduction or for playback over an array of loudspeakers. A filter bank splits each of the input channels into frequency bands. The input signal is decomposed into plane waves to determine one or two dominant sound source directions. The(se) are used to determine a set of virtual loudspeaker positions selected such that the dominant direction(s) coincide(s) with virtual loudspeaker positions. The input signal is decoded into virtual loudspeaker signals corresponding to each of the virtual loudspeaker positions, and the virtual loudspeaker signals are processed with transfer functions suitable to create the illusion of sound emanating from the directions of the virtual loudspeakers. A high spatial fidelity is obtained due to the coincidence of virtual loudspeaker positions and the determined dominant sound source direction(s). Improved performance can be obtained in the case where Head-Related Transfer Functions are used by differentiating the phase of a high frequency part of the HRTFs with respect to frequency, followed by a corresponding integration of this part with respect to frequency after combining the components of HRTFs from different directions. | 2010-12-30 |
20100329467 | REMOVING TIME DELAYS IN SIGNAL PATHS - The disclosed embodiments include systems, methods, apparatuses, and computer-readable mediums for compensating one or more signals and/or one or more parameters for time delays in one or more signal processing paths. | 2010-12-30 |