40th week of 2013 patent applcation highlights part 42 |
Patent application number | Title | Published |
20130259064 | GLOBAL SWITCH RESOURCE MANAGER - A network device includes an input circuit configured to receive a plurality of data streams. An output circuit is configured to transmit the plurality of data streams. A forwarding engine includes a plurality of different types of resources associated with transmission of the plurality of data streams and is configured to transfer data streams from the input circuit to the output circuit according to the plurality of different types of resources. A resource manager is configured to determine performance requirements for each of the plurality of data streams, determine whether the performance requirements for each of the plurality of data streams can be accepted, store data entries corresponding to the performance requirements in response to a determination that the performance requirements can be accepted, and program, for each of the plurality of data streams, the plurality of different types of resources based on the data entries. | 2013-10-03 |
20130259065 | Diameter Versioning Dictionary - Embodiments of the invention provide a flexible Diameter command dictionary for 3rd Generation Partnership Project (3GPP) network nodes wherein context-specific definitions are defined to apply to different versions and releases of 3GPP standards. | 2013-10-03 |
20130259066 | PACKET FILTERING BASED ON DYNAMIC USAGE INFORMATION - A receiver of network data dynamically filters packets by packet type from a network device CPU based on usage information, such as time, day, location, and feature (e.g., “video” or “application”) selection. | 2013-10-03 |
20130259067 | Method for Providing an MPLS Tunnel with Shared Bandwidth - A method is described for providing an MPLS tunnel adapted for sharing bandwidth (BW) in an MPLS network. The method comprises establishing the MPLS tunnel as a working MPLS tunnel (ST) to be shared by a plurality of pseudo wires (PWs) passing at least partially along the path of the tunnel ST, wherein a predetermined bandwidth of the bandwidth allocated for the ST is adapted to be shared by the plurality of PWs, of which at least one PW has a different source point and/or a different destination termination point at the ST path, from at least one other of the plurality of PWs. | 2013-10-03 |
20130259068 | COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND COMMUNICATION SYSTEM - A physical frame is constructed, the physical frame including a medium access control super-frame payload which in turn includes a plurality of medium access control frames. With respect to the constructed physical frame, virtual carrier sense information is set in the plurality of medium access control frame so that a result of carrier sense is identical to another by virtual carrier sense based on the plurality of medium access control frames in the medium access control super-frame payload. The physical frame in which the virtual carrier sense information has been set is transmitted to a destined communication apparatus. | 2013-10-03 |
20130259069 | FIBER LASER APPARATUS AND METHOD OF DETECTING FAILURE OF FIBER LASER APPARATUS - A fiber laser apparatus in which pump light is introduced into an optical fiber to generate laser light includes a detecting section that detects signal light leaking out from a core of the optical fiber as leakage signal light, a determining section that determines that, in a case where there is a decrease in an intensity of the leakage signal light detected in the detecting section, a failure of the fiber has occurred, and a stopping section that stops, in a case where the determining section has determined that a failure of the fiber has occurred, the introduction of the pump light into the optical fiber. The detecting section detects the leakage signal light leaking out of a High Reflectivity FBG that is provided on a side opposite to an output side of the laser light. | 2013-10-03 |
20130259070 | PULSED LASER SOURCES - Modelocked fiber laser resonators may be coupled with optical amplifiers. An isolator optionally may separate the resonator from the amplifier. A reflective optical element on one end of the resonator having a relatively low reflectivity may be employed to couple light from the resonator to the amplifier. Enhanced pulse-width control may be provided with concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers may also be included in the laser cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth may be obtained by matching the dispersion value of the grating to the inverse of the dispersion of the intra-cavity fiber. Frequency comb sources may be constructed from such modelocked fiber oscillators. Low dispersion and an in-line interferometer that provides feedback may assist in controlling the frequency components output from the comb source. | 2013-10-03 |
20130259071 | BROADBAND OPTICAL ACCUMULATOR AND TUNABLE LASER USING A SUPERCONTINUUM CAVITY - A broadband optical accumulator and tunable narrowband optical source use a microstructured optical fiber into which optical energy is coupled at a first wavelength. The input optical energy is spectrally broadened as it propagates through the fiber, and the output signal is directed to a wavelength separator such as a Bragg grating. A narrowband portion of the output signal is redirected by the grating, while the remainder is reinjected into the fiber. Adjustment of the output wavelength band may be accomplished by changing the incidence angle of the output signal by pivoting the grating. The grating may be located in a housing and surrounded by index matching fluid, and the narrowband portion of the output signal isolated by the grating may be redirected to an output location by a reflector that moves with pivoting of the grating. | 2013-10-03 |
20130259072 | TUNABLE OPTO-ELECTRONIC OSCILLATOR HAVING OPTICAL RESONATOR FILTER OPERATING AT SELECTED MODULATION SIDEBAND - Opto-electronic oscillator (OEO) devices include an optical resonator filter to block the strong laser light at the laser carrier frequency from entering the optical resonator filter and to select one of the weak modulation sidebands, which is in resonance with the optical resonator filter, to be coupled into the optical resonator filter. The laser light at the laser carrier frequency and other modulation sidebands bypass the optical resonator filter to reach a fast photodetector. The laser light in the selected modulation sideband in the optical resonator filter is then coupled out to mix with the laser light at the laser carrier frequency and other modulation sidebands at the fast photodetector to produce the detector output as the input to the electrical part of the opto-electronic loop to produce the OEO oscillation. | 2013-10-03 |
20130259073 | APPARATUS AND METHOD FOR STABILIZING WAVELENGTH TUNABLE LASER - An apparatus and method for stabilizing an output of a laser is provided. An optical amplifier oscillates light having a first wavelength band. A filter filters the light having the first wavelength band to output light having a second wavelength band narrower than the first wavelength band. The light having the second wavelength band may correspond to an output of a laser. To stabilize the wavelength center of the output laser, at least a portion of the light having the second wavelength band may be transferred to a fiber Bragg Grating (FBG) through a coupler. By performing feedback of a difference between the signal output from the FBG and a laser modulation signal, an offset corresponding to a lead zirconate titanate (PZT) operating parameter of a Fabry-Perot filter may be controlled to automatically stabilize the wavelength center. | 2013-10-03 |
20130259074 | COMPACT CO2 SLAB-LASER - A compact CO | 2013-10-03 |
20130259075 | LASER LIGHT SOURCE MODULE - The present invention provides a laser light source module thereby providing better prevention against actions taken to use the laser light for purposes other than the intended purpose, and a laser light source module according to the present invention provides a laser light source module including a laser element that emits laser light, the laser light source module being formed by a combination of a plurality of members, the laser light source module including: a laser element drive circuit including a memory that stores a password, said laser element drive circuit making said laser element emit laser light if an input password that has been input matches the password stored in said memory; and a laser element destruction mechanism that, if the plurality of members are separated, destroys said laser element. | 2013-10-03 |
20130259076 | COMPOUND ENCLOSURE FOR OPTICAL APPARATUS - An optically pumped semiconductor laser is assembled in an enclosure comprising a base, a first mounting frame attached to the base, a second mounting frame attached to the first mounting frame and a cover attached to the second mounting frame. The assembly base, frames, and cover forms an undivided enclosure, with the frames contributing to walls of the enclosure. Components of the laser are assembled sequentially on the base and the frames. The frames are irregular in height to permit flexibility in the mounting-height of components. This reduces the extent to which compactness of the enclosure is limited by any one component. | 2013-10-03 |
20130259077 | HETEROGENEOUS LASER WITH HIGH EFFICIENCY AND METHOD FOR MANUFACTURING THE LASER - The laser includes an amplifier with III-V heterostructure, designed to generate an optical wave, and a waveguide coupled optically to the amplifier, said waveguide having a hat-shaped cross section, the top of which is proximal to the amplifier. The top of the hat and the lateral sides of the hat are covered with a layer of a dielectric material in the vicinity of the amplifier. The hat is formed by a base and a protrusion of the waveguide, the material forming the base being distinct from the material forming the protrusion. | 2013-10-03 |
20130259078 | SEMICONDUCTOR LASER - A semiconductor laser of an embodiment includes: an optical resonator having a first cladding layer, a ring-shaped active layer on the first cladding layer, a ring-shaped second cladding layer on the active layer, a first electrode inside the ring shape on the first cladding layer, a ring-shaped second electrode on the second cladding layer, a first insulating layer between the first cladding layer and the active layer, formed from an inside wall toward an outside wall of the ring shape, where an outside wall side edge thereof is on an inner side than the outside wall, and a second insulating layer between the active layer and the second cladding layer, formed from the inside wall toward the outside wall, where an outside wall side edge thereof is on an inner side than the outside wall; and an optical waveguide optically coupled to the optical resonator. | 2013-10-03 |
20130259079 | GaN-Based Quantum Dot Visible Laser - A III-nitride based quantum dot (QD) laser is formed of InGaN/GaN quantum dots and capable emitting at a single wavelength within the visible region, including the violet wavelength region (400-440 nm), the blue wavelength region (440-490 nm), the green wavelength region (490-570 nm), the yellow wavelength region (570-590 nm), the orange wavelength region (590-620 nm), and the red wavelength region (620-700 nm), with varying composition as described. | 2013-10-03 |
20130259080 | ANISOTROPIC STRAIN CONTROL IN SEMIPOLAR NITRIDE QUANTUM WELLS BY PARTIALLY OR FULLY RELAXED ALUMINUM INDIUM GALLIUM NITRIDE LAYERS WITH MISFIT DISLOCATIONS - An epitaxial structure for a III-Nitride based optical device, comprising an active layer with anisotropic strain on an underlying layer, where a lattice constant and strain in the underlying layer are partially or fully relaxed in at least one direction due to a presence of misfit dislocations, so that the anisotropic strain in the active layer is modulated by the underlying layer. | 2013-10-03 |
20130259081 | OPTICAL SEMICONDUCTOR DEVICE, LIGHT EMITTING DEVICE, OPTICAL TRANSMITTING DEVICE, AND METHOD OF MANUFACTURING OPTICAL SEMICONDUCTOR DEVICE - An optical semiconductor device includes: a substrate of semiconductor; an array having a plurality of active regions arranged on the substrate so as to emit light to the same direction, the plurality of active regions being arranged more densely at ends of the array than in the center of the array in a direction crossing the light emitting direction; and electrodes which inject current to the plurality of active regions. | 2013-10-03 |
20130259082 | PREHEATING APPARTUS FOR STEEL SCRAP AND METALLURGICAL MELTING VESSEL EQUIPPED THEREWITH - A metallurgical melting vessel has a vertical shaft, surrounded by a housing wall, which receives steel scrap. At least one closure element, having laterally spaced-apart fingers extending parallel to one another, is mounted such that it can move between a closed position and an open position. In the closed position, the fingers protrude at least partially into the shaft for the purpose of holding back steel scrap. In the open position, the fingers free the shaft at least to such an extent that the steel scrap can fall from the shaft into the melting vessel. The at least one closure element is mounted so as to be movable from the side of the shaft into the shaft and laterally thereoutof. | 2013-10-03 |
20130259083 | DETERMINING THE HEAT FLOW EMANATING FROM A HEAT TRANSPORTING FLUID - The invention relates to a method for determining the heat flow (dQ/dt) emanating from a heat transporting fluid ( | 2013-10-03 |
20130259084 | CALORIFIC VALUE MEASURING SYSTEM AND CALORIFIC VALUE MEASURING METHOD - A calorific value measuring system having a container filled with a mixed gas to be measured; a microchip includes a heating element producing heat at a plurality of heat producing temperatures, disposed within the container; a measuring portion measuring a value of an electric signal from the heating element contacting the mixed gas being measured, at each of the plurality of heat producing temperatures; an equation storage device storing a calorific value calculating equation that has, for independent variables, the electric signals from the heating element at the plurality of heat producing temperatures and, as the dependent variable, the calorific value; and a calorific value calculating portion calculating the value of the calorific value of the mixed gas being measured by substituting the measured values for the electric signal from the heating element into the independent variables in the calorific value calculating equation. | 2013-10-03 |
20130259085 | Detection of Carbon Nanotubes by Microwave-Induced Heating - The present invention includes a method, systems and devices for the detection of carbon nanotubes in biological samples by providing a sample suspected of having one or more carbon nanotubes; irradiating the sample with a microwave radiation, wherein the carbon nanotubes absorb the microwave radiation; and detecting and measuring the one or more thermal emissions from the carbon nanotubes. | 2013-10-03 |
20130259086 | TEMPERATURE SENSOR AND AN INFRARED DETECTOR INCLUDING SUCH A SENSOR - A temperature sensor for use in an infrared detector the temperature sensor comprising: a first resistor associated with a first thermal path having a first thermal conductivity between the first resistor and a substrate and a first temperature coefficient of resistance; a second resistor associated with a second thermal path having a second thermal conductivity between the second resistor and the substrate and a second temperature coefficient of resistance, and a measurement circuit responsive to changes in the resistance of the first and second resistors to estimate changes in temperature, and wherein at least one of (a) the first and second thermal conductivities are different or (b) the first and second temperature coefficients of resistance are different. | 2013-10-03 |
20130259087 | CLINICAL HAND-HELD INFRARED THERMOMETER WITH SPECIAL OPTICAL CONFIGURATION - Method and apparatus for measuring temperature of a measured area of a surface without contacting the surface. The thermometer apparatus has an optical system which generates a correlative image of an infrared energy detector sensitive area at an image distance from the thermometer. A limiting aperture, having a size and a shape corresponding to those of the generated image, is between a mirror and the generated image. The measured area of the surface is between the generated image and the thermometer in use. With such a configuration, little infrared energy that does not originate from the measured area strikes the detector. Consequently, the energy reaching the detector is limited such that the size of the measured area remains constant, regardless of changes in the thermometer's field of view attributable to differences in the distance between the surface and the thermometer. A scan-and-integrate mode for practicing the invention is disclosed. | 2013-10-03 |
20130259088 | APPARATUS FOR FLUID TEMPERATURE MEASUREMENT - An apparatus for measuring the circumferential distribution of temperature in a fluid, comprising a plurality of sensor ladders, each incorporating a plurality of temperature sensors, wherein a first one of the sensor ladders partially overlaps a second one of the sensor ladders, part of the first sensor ladder not overlapping the second sensor ladder. | 2013-10-03 |
20130259089 | TEMPERATURE DETECTION APPARATUS - A temperature detection apparatus includes a transformer, a thermostat attached directly to an electrically conductive site of the heating element and has contacts that become short-circuited or come into an open-circuit condition depending on whether or not the temperature of the heating element is equal to or higher than a predetermined value, the contacts being connected to a secondary coil in the transformer, a DC voltage source and a transistor configured to supply required AC power to a primary coil in the transformer, a current detection resistor configured to detect a current flowing through the primary coil in the transformer, and a comparison circuit detecting a voltage generated across the current detection resistor when a current flows through the current detection resistor, the comparison circuit outputting an alarm signal when the current flowing through the primary coil in the transformer exceeds a preset threshold current. | 2013-10-03 |
20130259090 | IMMERSION TEMPERATURE SENSOR - A temperature sensor ( | 2013-10-03 |
20130259091 | HIGH ACCURACY TEMPERATURE SENSOR - Temperature accuracy is improved, conversion gain is increased without increasing current density and parasitic resistance errors and other problems with conventional bandgap reference temperature sensors are eliminated by generating a signal proportional to temperature from three samples, where the signal is defined as a difference between a first difference and a second difference, the first difference comprising a difference between a second sample and a first sample, the second difference comprising a difference between a third sample and the first sample, and where the signal is defined to cancel parasitic components in the first, second and third samples. | 2013-10-03 |
20130259092 | SYSTEM AND METHOD FOR PREDICTING THE TEMPERATURE OF A DEVICE - A method of predicting a temperature includes operatively coupling a temperature prediction circuit to a device including a semiconductor chip, determining a correlation between a current and voltage of the temperature prediction circuit, and predicting a temperature with respect to power applied to the device using the determined correlation. | 2013-10-03 |
20130259093 | SYSTEMS AND METHODS FOR PROVIDING TIMING TRACKING LOOPS IN A COMMUNICATION SYSTEM - Various embodiments are disclosed for providing timing tracking loops in a communication system. A communication system includes a delay locked loop (DLL) comprising a maximum region detector configured to identify a target channel profile comprising at least a portion of the multipath signals based on the timing information, the maximum region detector further configured to apply a weight vector to each channel tap in the target channel profile and determine a tap with a maximum power level relative to remaining channel taps in the channel profile. The system further comprises a window timing loop (WTL) adjuster configured to track a position of a channel estimation window (CEW) within an observation window corresponding to the maximum channel energy level, where the maximum channel energy level corresponds to the sum of the energy of all the taps for a given window. | 2013-10-03 |
20130259094 | SIGNAL QUALITY MONITOR - Various embodiments relate to a method of determining the presence of a spread spectrum signal, including: receiving N input samples of a signal; performing a first autocorrelation on the N input samples with a first offset; performing a second autocorrelation on the N input samples with a second offset; performing a third autocorrelation on the N input samples with a third offset; performing a fourth autocorrelation on the N input samples with a fourth offset; performing a fifth autocorrelation on the N input samples with a fifth offset; determining if the values of the first, second, and third autocorrelations are decreasing, and determining if the values of the fourth and fifth autocorrelations are less than a threshold value, then determining that a spread spectrum signal is present in the N input samples. | 2013-10-03 |
20130259095 | MODBUS REPEATER WITH SELF-ADAPTIVE BAUD RATE AND SELF-ADAPTIVE BAUD RATE SYTEM AND METHOD - Disclosed are a self-adaptive baud rate system and method. The method includes: a) receiving first data and second data; b) judging whether or not a falling edge of a start bit in a synchronization code of the first data and second data is detected; c) if the falling edge is not detected, then return to step b); and if the falling edge is detected, then a first counting is started from a rising edge after the start bit based on a reference clock, and stopped at the next falling edge, and a first count value is obtained; and a second counting is started from the falling edge where the first counting was stopped, and stopped at the next rising edge, and a second count value is obtained; and d) acquiring a baud rate according to the relationships among the first count value and the second count value and a first threshold. By way of using a CPLD to detect the baud rate and encoding format of a Modbus data frame remotely according to the present application, there is no need to manually set the baud rate and encoding format locally. The function of remote auto-detection of the baud rate and encoding format can be achieved by the present application, and the materials and assembly costs of the rotary encoder are omitted. | 2013-10-03 |
20130259096 | NETWORK REPEATER - A network repeater is configured to repeat data packets in a broadcast mode without generating a significant broadcast storm. The network repeater is configured to detect a characteristic of a received data packet. The data packet characteristic is compared with valid copies of packet characteristics previously stored in a packet registry. During a delay period, if a valid copy of the detected characteristic is found in the packet registry, then it is assumed that the packet is being received for the second time and the data packet is not repeated in the broadcast mode. If a valid copy of the detected characteristic of the data packet is not found in the packet registry, then the characteristic is stored in the packet registry and the data packet is repeated in a broadcast mode. | 2013-10-03 |
20130259097 | METHOD FOR ENABLING A DEVICE UNDER TEST (DUT) TO RETRY A PORTION OF A PRE-DEFINED TEST SEQUENCE - Execution of a block test “retry” in a test environment with each block in the test sequence sent after the tester has determined that the previous block of data packets has met one or more prescribed test criterion. If a block sent by the DUT has not met the test criterion, a retry sequence is initiated to re-test the block. In another embodiment, a block test “retry” is executed where each block in the test sequence is sent and analysis of previously sent blocks is done in parallel with the sending of a subsequent block. If a previous block has not met the test criterion, a retry sequence is initiated whereby the tester and DUT step back to the block that failed to meet the test criterion and retry that block. If the retry meets test criterion, testing continues by resuming with the next untested block in the sequence. | 2013-10-03 |
20130259098 | Signaling of Sequence Generator Initialization Parameters for Uplink Reference Signal Generation - A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of possible initialization sequences for a sequence generator of a second device. The range of this second subset spans at least the range of the first subset. The base station further encodes the first sequence as a first set of two or more parameters, and encodes the second sequence as a second set of one or more parameters. This second set includes at least one parameter not included in the first set, and comprises fewer bits than the first set. The base station initializes the sequence generators by transmitting the first and second sets of parameters to the devices. | 2013-10-03 |
20130259099 | TUNABLE NOTCH FILTER USING FEEDBACK THROUGH AN EXISTING FEEDBACK RECEIVER - A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a receiver, a feedback receiver and a transmitter. The wireless communication device also includes a Tx leakage signal reduction module. The Tx leakage signal reduction module reuses the feedback receiver. | 2013-10-03 |
20130259100 | INFORMATION PROCESSING APPARATUS, TESTING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN TESTING PROGRAM - A first transmitting device includes: a controller that generates setting information concerning transmission and reception of data in the first and second transmitting devices and transmits the generated setting information to the second transmitting device; a detector that detects whether an error is included in data which is transmitted from the second transmitting device and received based on the setting information; and a storage unit that stores information on the error detected by the detector. A second transmitting device includes: a setting unit that sets transmission of data to be transmitted to the first transmitting device based on the setting information received from the controller; and a generator that generates data in accordance with the setting by the setting unit to transmit the data to the first transmitting device. | 2013-10-03 |
20130259101 | ASYMMETRIC MIXED-MODE POWERLINE COMMUNICATION TRANSCEIVER - An asymmetric mixed-mode transceiver may determine to communicate with a destination powerline communication device. The asymmetric mixed-mode transceiver may determine whether an operational mode associated with the destination powerline communication device is a multiple-output multiple-input (MIMO) mode or a single-output single-input (SISO) mode. The asymmetric mixed-mode transceiver may dynamically change its operational mode to either the MIMO mode or the SISO mode to match the operational mode of the destination powerline communication device. The asymmetric mixed-mode transceiver may receive a communication from a source powerline communication device. The asymmetric mixed-mode transceiver may determine whether an operational mode associated with the source powerline communication device is the MIMO mode or the SISO mode. The asymmetric mixed-mode transceiver may dynamically change its operational mode to match the operational mode of the source powerline communication device. | 2013-10-03 |
20130259102 | TUNABLE NOTCH FILTER USING FEEDBACK THROUGH AN EXISTING FEEDBACK RECEIVER - A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a receiver, a feedback receiver and a transmitter. The wireless communication device also includes a Tx leakage signal reduction module. The Tx leakage signal reduction module reuses the feedback receiver. | 2013-10-03 |
20130259103 | DIGITAL DELTA SIGMA MODULATOR AND APPLICATIONS THEREOF - A digital delta sigma modulator includes an input integration stage, a resonating stage, a quantizer, and a plurality of feedback paths operably coupled to the quantizer, the input integration stage, and the resonating stage. The input integration stage is operably coupled to integrate a digital input signal to produce an integrated digital signal, wherein the input integration stage has a pole at substantially zero Hertz. The resonating stage is operably coupled to resonate the integrated digital signal to produce a resonating digital signal, wherein the resonating stage has poles at a frequency above zero Hertz. The quantizer stage is operably coupled to produce a quantized signal from the resonating digital signal. | 2013-10-03 |
20130259104 | Synchronous Mode Tracking of Multipath Signals - In one embodiment, a method comprising sampling by a first sampling unit a first signal received via a first antenna; and sampling by a second sampling unit a second signal received via a second antenna, the sampling of the second signal commencing in synchronization with the sampling of the first signal by the first sampling unit based on an accumulated value, the first and second signal sharing common information. | 2013-10-03 |
20130259105 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND METHOD FOR OPERATING COMMUNICATION SYSTEM - A communication system includes a first communication device and a second communication device that performs power line communication with the first communication device via an electric power line, wherein the first communication device transmits a plurality of times an initial packet signal added with an error detection code in each of reference timing at regular intervals in the vicinity of zero crossing timing. The second communication device determines whether a reception state is good or poor based on a result of the error detection on each of the received initial packet signals, and when the reception state is poor, the second communication device transmits an ACK signal in timing shifted by micro time from the reference timing after receiving the initial packet signal. Then, the first communication device transmits a data packet signal in timing at the regular interval after the timing of receiving the ACK signal. | 2013-10-03 |
20130259106 | Wireless Communication Device Capable of Pre-Compensating for Oscillator Phase Noise - A wireless transmitter is disclosed that is capable of pre-compensating for oscillator phase noise. In the transmitter, an undesired phase noise being generated by a voltage-controlled oscillator can be detected by comparing the output of the voltage-controlled oscillator to a reference oscillator output. The phase can then be detected by calculating a desired number of zero crossings over a given time period, and comparing this value to an actual number of zero crossings detected in the signal generated by the voltage-controlled oscillator over the same period. From this, the phase component can be determined and digitally pre-compensated in a data signal. | 2013-10-03 |
20130259107 | APPARATUS AND METHOD FOR MULTIPORT AMPLIFICATION IN COMMUNICATION SYSTEM - Disclosed is an apparatus and a method for multiport amplification configured to amplify a signal input to a multi-input port and output the amplified signal to a multi-output port in order to normally transmit/receive a signal in a communication system. The apparatus and the method are configured to: amplify an input signal input through a multi-input port, detect a phase error and an amplitude error of the input signal, and then calculate a phase error value and an amplitude error value of the input signal; correct the phase error and the amplitude error of the input signal through the phase error value and the amplitude error value of the input signal; and then amplify the input signal of which the phase error and the amplitude error are corrected, and output the input signal to a multi-output port. | 2013-10-03 |
20130259108 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND METHOD FOR OPERATING COMMUNICATION SYSTEM - A communication system includes a first communication device and a second communication device that performs power line communication with the first communication device via an electric power line, wherein the first communication device transmits an initial packet signal added with an error detection code in each zero crossing period including zero crossing timing while changing transmission timing within the zero crossing period. The second communication device specifies optimum communication timing out of a plurality of pieces of transmission timing within the zero crossing periods based on a result of error detection on each initial packet signal, and transmits an ACK signal including timing information on the optimum communication timing. Then, the first communication device transmits a data packet signal in the optimum communication timing within the zero crossing period, which is specified based on the timing information. | 2013-10-03 |
20130259109 | CHANNEL ESTIMATION BASED ON NOISE POWER - Disclosed are various embodiments providing processor configured to determine a received signal strength indication (RSSI) value for each of the plurality of channel taps. The processing circuitry identifies a maximum RSSI value among the RSSI values and may adjust a variable threshold range according to the maximum RSSI value. The RSSI value for each channel tap may be scaled according to a corresponding per tap noise power. | 2013-10-03 |
20130259110 | SYSTEM FOR SPECTRUM SENSING OF MULTI-CARRIER SIGNALS WITH EQUIDISTANT SUB-CARRIERS - A multi-carrier signal is typically comprised of many equidistant sub-carriers. This results in periodicity of spectrum within the bandwidth of such a multi-carrier signal. An unknown multi-carrier signal with equidistant sub-carriers can thus be sensed together with its sub-carrier spacing by finding a discernible local maximum in the cepstrum (Fourier transform of the log spectrum) of the multi-carrier signal. | 2013-10-03 |
20130259111 | Symmetric Leakage for Adaptive Finite-Impulse-Response Filters - An adaptive finite-impulse-response filter includes a series of taps; each tap has a corresponding value of tap coefficient. Values of tap coefficients are calculated to minimize a system error function. The solution is under-constrained, and some values of tap coefficients can grow and cause overflow errors. Growth of tap coefficients is controlled by introducing tap leakage. Disclosed is a symmetric leakage algorithm, in which an updated value of the tap coefficient of a particular tap is based on the old value of the tap coefficient of the particular tap, on the old values of the tap coefficients of a set of taps preceding the particular tap, and on the old values of the tap coefficients of a series of taps following the particular tap. | 2013-10-03 |
20130259112 | VARIABLE-PRECISION DISTRIBUTED ARITHMETIC MULTI-INPUT MULTI-OUTPUT EQUALIZER FOR POWER-AND-AREA-EFFICIENT OPTICAL DUAL-POLARIZATION QUADRATURE PHASE-SHIFT-KEYING SYSTEM - A variable-precision distributed arithmetic (VPDA) multi-input multi-output (MIMO) equalizer is presented to reduce the size and dynamic power of 112 Gbps dual-polarization quadrature phase-shift-keying (DP-QPSK) coherent optical communication receivers. The VPDA MIMO equalizer compensates for channel dispersion as well as various non-idealities of a time-interleaved successive approximation register (SAR) based analog-to-digital converter (ADC) simultaneously by using a least mean square (LMS) algorithm. As a result, area-hungry analog domain calibration circuits are not required. In addition, the VPDA MIMO equalizer achieves 45% dynamic power reduction over conventional finite impulse response (FIR) to equalizers by utilizing the minimum required resolution for the equalization of each dispersed symbol. | 2013-10-03 |
20130259113 | SYSTEMS AND METHODS FOR ADAPTIVE BLIND MODE EQUALIZATION - Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over time-varying dispersive wireless channels. For example, various embodiments may utilize an architecture comprised of a channel gain normalizer, a blind mode equalizer with hierarchical structure (BMAEHS) comprised of a level 1 adaptive system and a level 2 adaptive system, and an initial data recovery subsystem. The BMAEHS may additionally be comprised of an orthogonalizer for providing a faster convergence speed. In various architectures of the invention, the BMAEHS may be replaced by a cascade of multiple equalizer stages for providing computational and other advantages. Various embodiments may employ either linear or decision feedback configurations. In the communication receiver architectures, differential encoders and decoders are presented to resolve possible ambiguities. Adaptive digital beam former architecture is presented. | 2013-10-03 |
20130259114 | Encoding and Transmitting Video Streams - The invention relates to a method of encoding a video stream comprising, receiving a video signal comprising a plurality of frames, each frame comprising one or more portion of video data displaying to a user a video image derived from the video signal; receiving from the user selection of at least one region in the video image, the region represented by a portion of video data; and encoding the video signal, said encoding comprising encoding the portion of video data corresponding to the at least one selected region at a higher quality level than other portions of the video data in the video stream. | 2013-10-03 |
20130259115 | PLURAL PIPELINE PROCESSING TO ACCOUNT FOR CHANNEL CHANGE - An audio/video processing device includes a first pipeline and a second pipeline. The first pipeline is configured to receive a first program stream and decode the first program stream. The second pipeline is configured to receive a second program stream and at least partially decode the second program stream. In response to selection of the first program stream, the first pipeline is further configured to output the decoded first program stream and the second pipeline is further configured to discard the partially decoded second program stream. In response to selection of the second program stream, the second pipeline is configured to fully decode the second program stream and output the decoded second program stream. | 2013-10-03 |
20130259116 | Two Bins Per Clock CABAC Decoding - CABAC coefficient decoding may be increased to two bins per clock. Since coefficients comprise most of the bitstream, this improvement almost doubles the CABAC decoding for a low quantization parameter bitstream (with lots of coefficients). | 2013-10-03 |
20130259117 | Method and Apparatus of Adaptive Loop Filtering - A method and apparatus for processing of coded video using adaptive offset (AO) are disclosed. Embodiments of the present invention divide reconstructed video data into multiple filter units and apply adaptive offset to the filter units to generate filtered video data, where boundaries of filter units correspond to boundaries of coding units and each of said filter units contains at least one coding unit. Furthermore, two or more of the multiple filter units can be merged as indicated by a merge index to share the applied adaptive offset. A filter control flag can be used to indicate filter ON/OFF control. The luma and chroma components may also share the same filter information. In another embodiment, the filter information sharing among filter units can be applied regardless whether the boundaries of the filter units are aligned with the boundaries of the coding units. | 2013-10-03 |
20130259118 | Method and Apparatus for Improved In-Loop Filtering - Methods and apparatuses for video decoding and encoding with in-loop processing of reconstructed video are disclosed. At the decoder side, the method comprises receiving a flag from the video bitstream and according to the flag, the method receives information associated with in-loop filter parameters either from a data payload in the video bitstream to be shared by two or more coding blocks or individual coding block data in the video bitstream. At the encoder side, the method comprises incorporating information associated with the in-loop filter parameters either in a data payload in a video bitstream to be shared by two or more coding blocks or interleaved with individual coding block data in the video bitstream according to a flag. The data payload in the video bitstream is in a picture level, Adaptation Parameter Set (APS), or a slice header. | 2013-10-03 |
20130259119 | APPARATUSES AND METHODS FOR PROVIDING QUANTIZED COEFFICIENTS FOR VIDEO ENCODING - Apparatuses and methods for optimizing rate-distortion costs in a signal are disclosed. An apparatus may comprise a quantization block that may be configured to generate a plurality of candidates for each of a plurality of coefficients. The quantization block may further generate a respective plurality of arcs based, at least in part, on the plurality of candidates. The quantization block may be configured to determine which of the plurality of arcs has a lowest cost using a trellis optimization technique. Fractional bit estimations may be used to calculate rate, and inverse lambda may be used to calculate candidate coefficients. | 2013-10-03 |
20130259120 | QUANTIZATION MATRIX AND DEBLOCKING FILTER ADJUSTMENTS FOR VIDEO CODING - A device may include a video coder configured to determine an equivalent quantization parameter (QP) for a decoded block of video data using a quantization matrix for the decoded block of video data, determine deblocking parameters based on the determined equivalent QP, and deblock an edge of the decoded block based on the determined deblocking parameters. In particular, the video coder may determine equivalent QPs for two neighboring blocks defining a common edge, and deblock the common edge based on the equivalent QPs. The video coder may determine deblocking parameters, such as β and t | 2013-10-03 |
20130259121 | VIDEO ENCODING DEVICE, VIDEO DECODING DEVICE, VIDEO ENCODING METHOD, VIDEO DECODING METHOD, AND PROGRAM - A video encoding device includes an intra prediction unit for performing intra prediction on an image, a frequency transform/quantization unit for frequency transform and quantizing a prediction error based on the intra prediction performed by the intra prediction unit, an entropy encoding unit for entropy-encoding a transform quantization value generated by the frequency transform/quantization unit, an edge detection unit for detecting edge information on an image block of the minimum frequency-transform block size of the image, and edge information storage unit for storing the edge information detected by the edge detection unit. | 2013-10-03 |
20130259122 | IMAGE CODING METHOD AND IMAGE DECODING METHOD - An image coding method includes: determining a first temporal distance between a current picture to be coded and a first reference picture; determining a second temporal distance between the first reference picture and a second reference picture; judging whether or not the first temporal distance and the second temporal distance satisfy a predetermined condition, and calculating a first weight for the first reference picture and a second weight for the second reference picture based on a result of the judgment; and generating a predictive image for the current block by adding a first block included in the first reference picture and a second block included in the second reference picture, the first block being weighted by the first weight, and the second block being weighted by the second weight. | 2013-10-03 |
20130259123 | SYSTEM AND METHOD FOR IDENTIFYING UNIQUE PORTIONS OF VIDEOS WITH VALIDATION AND PREDICTIVE SCENE CHANGES - A computer-based method for generating a compressed data stream, including using a specially programmed computer to: access a first compressed data stream including a first plurality of sequentially arranged frames including respective compressed frame data; access a second compressed data stream including a second plurality of sequentially arranged frames including respective compressed frame data; compare respective compressed data for sequentially matched pairs of frames in the first and second pluralities of frames; select, based on the comparison, common and unique portions in the first data stream; and select, based on the comparison, first and second portions in the second data stream, matched with the common and unique portions, respectively, in the sequence. The first portion has respective compressed frame data equal to the respective compressed frame data for the common portion. The second portion has respective compressed frame data unequal to the respective compressed frame data for the common portion. | 2013-10-03 |
20130259124 | IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, AND IMAGE DECODING APPARATUS - With an image coding method, when performing arithmetic coding on parameters corresponding to a current coefficient to be coded, a related parameter which is a parameter related to a value to be referred to for selecting a context is arithmetically coded per coefficient among the parameters corresponding to the coefficient, and unrelated parameters which are parameters unrelated to a value to be referred to for selecting the context are collectively arithmetically coded per coefficient subset among the parameters corresponding to the coefficients in the coefficient subset. | 2013-10-03 |
20130259125 | METHODS AND APPARATUS FOR ILLUMINATION AND COLOR COMPENSATION FOR MULTI-VIEW VIDEO CODING - There are provided a method and apparatus for illumination and color compensation for multi-view video coding. A video encoder includes an encoder for encoding a picture by enabling color compensation of at least one color component in a prediction of the picture based upon a correlation factor relating to color data between the picture and another picture. The picture and the other picture have different view points and both corresponding to multi-view content for a same or similar scene. | 2013-10-03 |
20130259126 | METHOD AND APPARATUS FOR VIDEO ENCODING/DECODING OF ENCODING/DECODING BLOCK FILTER INFORMATION ON THE BASIS OF A QUADTREE - In a video encoding and/or decoding apparatus and/or method, a video encoder partitions a reference image predicted block-wise with at least a filter into blocks in at least one layer, sets a partitioning flag to indicate whether each of the partitioned blocks is subdividable into sub-blocks, sets a filter type to indicate which filter was used for interpolating each of the blocks or sub-blocks, and quadtree-encodes the partitioning flag and the filter type together with the corresponding block or sub-block to generate a quadtree-encoded bitstream. A video decoder reads the partitioning flags and the filter types from the quadtree-encoded bitstream to reconstruct the partitioning flags and the filter types for the corresponding blocks or sub-blocks, generates the blocks or sub-blocks based on the corresponding partitioning flags, and interpolates the generated blocks or sub-blocks on the basis of the corresponding filter types to reconstruct the reference image. | 2013-10-03 |
20130259127 | METHOD AND APPARATUS FOR ENCODING VIDEO, AND METHOD AND APPARATUS FOR DECODING VIDEO - Disclosed is a method of encoding a video, the method including: splitting a current picture into at least one maximum coding unit; determining a coded depth to output a final encoding result according to at least one split region obtained by splitting a region of the maximum coding unit according to depths, by encoding the at least one split region, based on a depth that deepens in proportion to the number of times the region of the maximum coding unit is split; and outputting image data constituting the final encoding result according to the at least one split region, and encoding information about the coded depth and a prediction mode, according to the at least one maximum coding unit. | 2013-10-03 |
20130259128 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES TO MINIMIZE REDUNDANCY OF INTRA-PREDICTION MODE - A video encoding apparatus encodes intra-prediction mode information of the current block by excluding information on overlapping or unnecessary intra-prediction modes from a candidate mode group and/or based on whether predicted values of intra-prediction modes of at least a preset number of subblocks are matched with actual intra-prediction modes. | 2013-10-03 |
20130259129 | IMAGE PROCESSING DEVICE AND METHOD - The present disclosure relates an image processing device and method enabling merging blocks in the temporal direction in motion compensation. Provided is an image processing device including a determining unit configured to determine whether or not motion information of a current block which is to be processed, and motion information of a co-located block situated in the temporal periphery of the current block, match, and a merge information generating unit configured to, in the event that determination is made by the determining unit that these match, generate temporal merge information specifying the co-located block as a block with which the current block is to be temporally merged. | 2013-10-03 |
20130259130 | WEIGHTED PREDICTION PARAMETER CODING - The techniques are generally related to the coding of weighted prediction parameters. A video coder may determine the weighted prediction parameters for a reference picture list based on coded weighted prediction parameters for another reference picture list. Examples of the reference picture list include reference picture lists constructed for coding purposes, including a combined reference picture list. | 2013-10-03 |
20130259131 | IMAGE PROCESSING APPARATUS AND METHOD - An image processing apparatus includes a generation unit, a selection unit, a coding unit, and a transmission unit. The generation unit generates a plurality of pieces of reference block information indicative of different blocks of coded images, which have different viewpoints from a viewpoint of an image of a current block, as reference blocks which refer to motion information. The selection unit selects a block which functions as a referent of the motion information from among the blocks respectively indicated by the plurality of pieces of reference block information. The coding unit codes a differential image between a prediction image of the current block, which is generated with reference to the motion information of the block selected by the selection unit, and the image of the current block. The transmission unit transmits coded data and the reference block information indicative of the block selected by the selection unit. | 2013-10-03 |
20130259132 | METHOD AND APPARATUS FOR TRANSMITTING VIDEO - A method of transmitting a coded media frame comprises determining a plurality of media frame sizes including a media frame size, transmitting an element comprising the plurality of media frame sizes, and thereafter receiving an input media frame. The method also includes processing the input media frame according to the media frame size to provide a coded media frame, and transmitting the coded media frame. | 2013-10-03 |
20130259133 | METHOD AND APPARATUS FOR ENCODING/DECODING IMAGE IN SPATIAL DOMAIN FOR NOISE COMPONENT - A method and apparatus for encoding and decoding an image in a spatial domain for noise components are provided. The method and apparatus generate a prediction block by predicting a current block, generate a residual block by subtracting the prediction block from the current block, decide whether the number of noise components of the residual block is in a predetermined range, determine a coding domain, when a determined coding domain is a frequency domain, transform quantize the residual block, when the determined coding domain is a spatial domain, quantize the residual block and encode information on the determined coding domain and a generated quantized block, or quantize the noise components and encode and decode information on quantized noise components, and a number and locations of the noise components. | 2013-10-03 |
20130259134 | IMAGE DECODING DEVICE AND MOTION VECTOR DECODING METHOD, AND IMAGE ENCODING DEVICE AND MOTION VECTOR ENCODING METHOD - A lossless decoding unit | 2013-10-03 |
20130259135 | CALVC Decoder With Multi-Symbol Run Before Parallel Decode - Context-adaptive variable length bitstream decoding performance may be improved and power consumption reduced by pushing the variable length decoding beyond one syntax element per clock pulse. | 2013-10-03 |
20130259136 | METHOD AND SYSTEM FOR GENERATING SIDE INFORMATION AT A VIDEO ENCODER TO DIFFERENTIATE PACKET DATA - A system and method for generating, by a video encoder, side information associated with a plurality of blocks of pixel data, the side information providing for each block of pixel data an indication of a video quality impact in an instance the block of pixel data is lost in the network. | 2013-10-03 |
20130259137 | System and Method for Multi-Core Hardware Video Encoding And Decoding - Methods and systems for performing a coding operation on video data using a computing device having plurality of cores are disclosed. In one aspect the method includes loading at least a first portion of the video data from a primary memory into an associated memory of a first core of a plurality of cores, performing a coding operation, by the first core, on the first portion of the video data, directly loading at least part of a first reference portion from the first core into the associated memory of a second core of the plurality of cores, loading at least a second portion of the video data from the primary memory into the associated memory of the second core of the plurality of cores, and performing the coding operation, by the second core, on the second portion of the video data using the first reference portion as a reference. | 2013-10-03 |
20130259138 | HARDWARE ACCELERATED DISTRIBUTED TRANSCODING OF VIDEO CLIPS - Systems, apparatus, articles, and methods are described including operations for distributed transcoding of video clips. | 2013-10-03 |
20130259139 | TESTING FRAME COLOR COUNTING TECHNIQUE - Various arrangements for determining a frame number of a video frame are presented. A decoded video frame may include a test image and a numerical color pattern. A first color present within the color pattern of the video frame at a first predefined location may be identified. A second color present within the color pattern of the video frame at a second predefined location may be identified. The frame number of the video frame may be identified using at least the first color and the second color. | 2013-10-03 |
20130259140 | CIRCUIT, DEVICE, METHOD AND SYSTEM FOR TRANSMITTING VIDEO DATA BETWEEN A VIDEO SOURCE AND A VIDEO SINK - A method, circuit and system for transmission, receiving and processing of video data between a video source transceiver and a video sink transceiver. Video data or information to be transmitted, which instructs an image processor associated with a video sink to modify a previously video frame into a current frame. A Delta Frame may include one or more Grid Based Predicted Error (“GBPE”) Values. The GBPE may be generated by source-side image processing logic using processes or techniques similar to those described in the MPEG and/or H.264 Standards, with the exception that the prediction error values may be calculated relative to a noisy predicted frame (e.g. based on an analog reception of a base frame) which has been grid quantized based on video sink transceiver SNR (e.g. substantially each pixel value in the predicted frame is rounded off up or down to a value on some grid). | 2013-10-03 |
20130259141 | CHROMA SLICE-LEVEL QP OFFSET AND DEBLOCKING - In one example, an apparatus for processing video data comprises a video coder configured to, for each of the one or more chrominance components, calculate a chrominance quantization parameter for a common edge between two blocks of video data based on a first luminance quantization parameter for the first block of video data, a second luminance quantization parameter for the second block of video data, and a chrominance quantization parameter offset value for the chrominance component. The video coder is further configured to determine a strength for a deblocking filter for the common edge based on the chrominance quantization parameter for the chrominance component, and apply the deblocking filter according to the determined strength to deblock the common edge. | 2013-10-03 |
20130259142 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device including a decoding section configured to decode an image from an encoded stream, a determination section configured to perform determination processes of determining whether to apply a deblocking filter to neighboring blocks neighboring across a block boundary within an image to be decoded by the decoding section, a filtering section configured to apply a deblocking filter to neighboring blocks to which the determination section has determined to apply a deblocking filter, and a control section configured to allow the determination section to perform the determination processes for a vertical block boundary and a horizontal block boundary using pixels of the neighboring blocks of a reconstruct image as reference pixels. | 2013-10-03 |
20130259143 | System and Method for Receiving I and Q RF Signals without a Phase Shifter - Methods and systems for receiving in-phase and quadrature (I and Q) radio frequency (RF) signals without a phase shifter utilizing a leaky wave antenna are disclosed and may include generating in-phase and quadrature signals using a leaky wave antenna coupled to one or more low-noise amplifiers (LNAs) on a chip and without a phase shifter. The RE I and Q signals may be communicated from the single leaky wave antenna using coplanar feed points and/or feed points on a top surface and a bottom surface of the single leaky wave antenna. The leaky wave antennas may be integrated on the chip, on a package to which the chip is affixed, and/or on a printed circuit board to which the chip is affixed. The RF I and Q signals may be amplified by the one or more LNAs and may down-convert the RF I and Q signals to baseband signals. | 2013-10-03 |
20130259144 | RECEIVER AND SEMICONDUCTOR INTEGRATED CIRCUIT HAVING THE SAME - A receiver includes a positive pulse determination circuit and a negative pulse determination circuit. The positive pulse determination circuit outputs a first L-level between when a pulse signal having a negative amplitude is detected and when neither a pulse signal having a positive amplitude nor a pulse signal having a negative amplitude is detected; otherwise a first H-level if a pulse signal having a positive amplitude is detected during another period. The negative pulse determination circuit outputs a second L-level between when a pulse signal having a positive amplitude is detected and when neither a pulse signal having a positive amplitude nor a pulse signal having a negative amplitude is detected; otherwise a second H-level is output if a pulse signal having a negative amplitude is detected during the other period. | 2013-10-03 |
20130259145 | MULTI-BIT DIGITAL SIGNAL ISOLATOR - The invention is directed to a multi-bit digital signal isolation system including a plurality of micro-transformers, each having a primary winding and a secondary winding, a transmitter circuit receiving a multi-bit signal and transmitting an encoded logic signal across the plurality of micro-transformers corresponding to the multi-bit signal, the primary winding of each micro-transformer receiving a signal corresponding to one of at least three possible states, and a receiver circuit receiving the encoded logic signal from the secondary windings of the plurality of transformers, decoding the encoded logic signal and reconstructing the received multi-bit signal based upon the decoded signal. | 2013-10-03 |
20130259146 | CIRCUIT FOR ASYNCHRONOUS COMMUNICATIONS, RELATED SYSTEM AND METHOD - A completion-detector circuit for detecting completion of the transfer of asynchronous data on a communication channel with signal lines organized according to a delay-insensitive encoding (e.g., dual-rail, m-of-n, Berger encoding) comprises: logic circuitry for detecting the data on the aforesaid signal lines configured for: i) producing a first signal indicating the fact that the asynchronous data on the signal lines are stable; ii) producing a second signal indicating the fact that the signal lines are de-asserted; and an asynchronous finite-state machine supplied with the first signal and the second signal for producing a signal of detection of completion of transfer of the asynchronous data, the detection signal having: a first value, when the first signal is asserted; and a second value, when the second signal is asserted; and being on hold when neither one nor the other of said first signal and said second signal is asserted. | 2013-10-03 |
20130259147 | REVERSE LINK MOBILE TRANSMIT DIVERSITY - An access network is wirelessly coupled to an access terminal. The access network comprises a plurality of communication modules, a transmitter and a channel estimator. The plurality of communication modules coupled to the access terminal and configured to transmit a plurality of signals. The transmitter coupled to the access terminal and configured to send an index which indicates number of the plurality of signals. The channel estimator, configured to adjust and modulate a channel state information into the plurality of signals. | 2013-10-03 |
20130259148 | AMPLITUDE ENHANCED FREQUENCY MODULATION - Methods and systems for transmitting a spectrally efficient signal. The method includes frequency modulating an input signal in a transmitter to generate a first frequency modulated (FM) signal and generating in the transmitter an amplitude modulated (AM) component based at least on the input signal. The method may then include generating a second FM signal based at least on the AM component and the first FM signal and sending the second FM signal to a receiver. | 2013-10-03 |
20130259149 | MULTI-USER COMMUNICATION USING SPARSE SPACE CODES - Multi-user sparse space codes are proposed as a new transmission scheme for uplink communication over a multi-user multiple-input-multiple-output (MIMO) communication channel. | 2013-10-03 |
20130259150 | METHOD FOR DETERMINING THE SPATIAL POSITION OF AN OBJECT, ELECTRONIC CIRCUIT AND ELECTRONIC SYSTEM - A method for determining the spatial position of an object the steps comprising:
| 2013-10-03 |
20130259151 | Codebook Feedback Method for Per-User Elevation Beamforming - A method of operating an array of antennas in a wireless communication system to provide user-specific azimuth and elevation beamforming is described. The method includes providing a product codebook structure consisting of both an azimuth and elevation portion. A receiver receives reference signals from a transmitter corresponding to both the azimuth and elevation portions of the array of antennas. The method also includes determining the index of the azimuth codebook portion of the product codebook from the azimuth portion of the received reference signals and determining the index of the elevation codebook portion of the product codebook from the elevation portion of the received reference signals. Apparatus and computer readable media are also described. | 2013-10-03 |
20130259152 | Device for Generating a Vector-Modulated Output Signal and Method for Generating a Vector-Modulated Output Signal - A device for generating a vector-modulated output signal based on a baseband signal having an in-phase component and a quadrature component, a first LO signal for the in-phase component of the baseband signal and a second LO signal for the quadrature component of the baseband signal comprises a baseband combination circuit, which is configured to combine the in-phase component and the quadrature component in order to obtain a plurality of combined IQ signals. Furthermore, the device includes a plurality of mixer cells for generating the vector-modulated output signal, based on the combined IQ signals, the first LO signal and the second LO signal. | 2013-10-03 |
20130259153 | PAIRED OFDM PILOT SYMBOLS - Successive pairs of OFDM symbols are transmitted by an OFDM transmitter and received by an OFDM receiver. The successive pairs include a first pair of OFDM symbols. First and second OFDM symbols of the first pair both include pilot symbols on two subcarriers that are symmetric about a center carrier frequency. The two subcarriers are the same for the first and second OFDM symbols. The pilot symbols on the two subcarriers for the first and second OFDM symbols compose an orthogonal matrix. The OFDM receiver estimates frequency responses at frequencies including the frequencies of the two subcarriers and compensates for signal impairment based at least in part on the estimated frequency responses. | 2013-10-03 |
20130259154 | WIRELESS APPARATUS AND DISTORTION COMPENSATING METHOD - A wireless apparatus includes amplifying systems each including a storing unit storing a distortion compensation coefficient for compensation for a nonlinear distortion of one or more transmission signals, a compensator compensating for the nonlinear distortion using the distortion compensation coefficient stored in the storing unit, and an amplifier amplifying the transmission signal after distortion compensation. The wireless apparatus further includes a switch that selects feedback signals corresponding to the transmission signals output from the amplifying systems, a subtractor that derives one or more differences between the feedback signal selected in the switch and the transmission signal, a first calculator that derives a distortion compensation coefficient that restricts the difference derived in the subtractor, and a switch controller that controls a length of time during which the feedback signal is selected in the switch depending on magnitude of distortion of the transmission signal output from the amplifying system. | 2013-10-03 |
20130259155 | Transmitter Noise Injection - A transmitter comprising a noise signal generator, and a transmit driver coupled to an output of the noise signal generator. | 2013-10-03 |
20130259156 | System and Method for Nonlinear MU-MIMO Downlink Channel Precoding with Arbitrary Precoder - Method and apparatus are provided for transmission of data. A precoder is selected, and a feedforward filter is derived in accordance with the precoder. In some embodiments, the precoder is an arbitrary effective precoder. Data prepared using the precoder and the feedforward filter can then be transmitted. | 2013-10-03 |
20130259157 | TRANSMISSION FILTER CALCULATOR, COMMUNICATION DEVICE AND METHODS - A transmission filter calculator for calculating at least a transmit filter for communication from a multi-antenna transmit communication device to a multi-antenna receive communication device via a MIMO channel iteratively determines transmit filters for multiple data streams. The transmission filter calculator chooses a transmit filter in a given iteration such that the transmit filter is orthogonal to one or more transmit filters chosen in one or more previous iterations, and such that a weighted or unweighted transmission rate obtainable using the transmit filter chosen in the given iteration is maximized, and chooses the transmit filter in dependence on a matrix product term which is based on a channel matrix describing MIMO channel characteristics between the transmit communication device and a currently considered one of the receive communication devices and on a distortion covariance matrix describing a noise, an inter-cell interference and an upper limit of an intra-cell interference. | 2013-10-03 |
20130259158 | VERY COMPACT/LINEAR SOFTWARE DEFINED TRANSMITTER WITH DIGITAL MODULATOR - A transmitter includes: a digital modulator configured to modulate a base-band signal in a digital domain into a modulated signal; a synchronization module configured to synchronize the modulated signal with a clock signal; and an analog output stage configured to convert the modulated signal into an analog signal for transmission. | 2013-10-03 |
20130259159 | TRANSMITTER LINEARIZED IN RESPONSE TO DERIVATIVE SIGNAL AND METHOD THEREFOR - A transmitter ( | 2013-10-03 |
20130259160 | APPARATUS AND METHOD FOR TRANSCEIVING DATA - A data transmitting apparatus generates a plurality of modulation data symbols by symbol-mapping a plurality of input data signals, converts the plurality of modulation data symbols to a real signal of a time domain from a frequency domain, performs angle modulation of the signal, and controls and transmits the size of a sine signal of the angle-modulated real signal with a gain varying according to a control signal. | 2013-10-03 |
20130259161 | APPARATUS AND METHOD FOR TRANSCEIVING DATA - A data transmitting apparatus generates a plurality of pilot signals to be used for channel estimation by a data receiving apparatus, performs symbol mapping of a plurality of input data signals and a plurality of pilot signal into a plurality of data symbols and a plurality of pilot symbols, converts input symbols in the frequency domain including the plurality of data symbols and the plurality of pilot symbols into a real signal in the time domain, and performs angle modulation of the real signal. The data transmitting apparatus controls the amplitude of the sine component of the angle-modulated real signal by a gain that varies with a control signal and then transmits the real signal. | 2013-10-03 |
20130259162 | Direct Feedback Equalization with Dynamic Referencing - A receiver circuit includes a first slicer coupled to receive data signals from a signal path and a reference voltage from a reference voltage path that is separate from the signal path. The first slicer is configured output a logic value based on a comparison between a voltage of the data signal and the reference voltage. The receiver circuit further includes a reference voltage generator configured to generate the reference voltage. The reference voltage generator is configured to dynamically generate the reference voltage based on logic values of previously received signals during operation in a first mode. During operation in a second mode, the reference voltage generator is configured to generate and provide the reference voltage as a static voltage. | 2013-10-03 |
20130259163 | Low Power Receiver - According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an s output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TTA) implemented using a current mode to buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced. | 2013-10-03 |