33rd week of 2015 patent applcation highlights part 60 |
Patent application number | Title | Published |
20150229292 | SECOND ORDER LOOP FILTER AND MULTI-ORDER DELTA SIGMA MODULATOR INCLUDING THE SAME - Provided is a second order loop filter (LF). The second order LF includes: an operational amplifier including a first input, a second input receiving a differential input of the first input, and an output; an inverter inverting a signal output from the output of the operational amplifier to output an inverted signal; a first resistor connected to between the first input and a first node; a second resistor connected to between the output of the operational amplifier and the first node; a third resistor connected to between the first input and an input signal; a first capacitor connected to between the second input and the first node; a second capacitor connected to between the output of the operational amplifier and an output of the inverter; and a third capacitor connected to between the output and the first input of the operational amplifier, wherein the second input is connected to a ground voltage. | 2015-08-13 |
20150229293 | HIGH-PASS FILTER CIRCUIT AND BAND-PASS FILTER CIRCUIT - Two types of high-pass filter circuit and a band-pass filter circuit are provided. Both types of high-pass filter circuit include a capacitor configured to input an input signal, a resistor connected between an output terminal of the capacitor and a prescribed bias voltage, and a signal output circuit connected to the output terminal of the capacitor and configured to buffer-amplify the input signal for output. In one of the two types of high-pass filter circuits, the resistor is formed on an SOI semiconductor substrate and includes two PN junction diodes that are inversely connected to each other in parallel. In the other one of the high-pass filter circuits, the resistor is formed on an SOI semiconductor substrate and includes two MOS transistors that are inversely connected to each other in parallel. | 2015-08-13 |
20150229294 | VOLTAGE CONTROLLED IMPEDANCE SYNTHESIZER - A voltage controlled impedance synthesizer providing stepwise variable impedance values according to a prescribed function of the control voltage, said synthesizer comprises of one or more two-terminal impedance modules connected in series, in each impedance module one or more essentially identical two-terminal impedance elements connected in series, a corresponding number of switches to short out by selection none to all of the impedance elements in the impedance module, and said switches being controlled by the control voltage through analog-to-digital conversion and digital processing means. The values of the impedance elements between the impedance modules in ratios being uniquely defined according to the numbers of impedance elements in the impedance modules, the voltage controlled impedance synthesizer is controlled to provide monotonic and stepwise variable impedance values. Further, through the use of the voltage controlled impedance synthesizer, other electrical parameters such as current and power can be controlled according to any prescribed functions. | 2015-08-13 |
20150229295 | THREE-D POWER CONVERTER IN THREE DISTINCT STRATA - A switching power supply in an integrated circuit, an integrated circuit comprising a switching power supply, and a method of assembling a switching power supply in an integrated circuit are disclosed. In one embodiment, the invention provides a three-dimensional switching power supply in an integrated circuit comprising a device layer. The switching power supply comprises three distinct strata arranged in series with the device layer, the three distinct strata including a switching layer including switching circuits, a capacitor layer including banks of capacitors, and an inductor layer including inductors. This switching power supply further comprises a multitude of connectors electrically and mechanically connecting together the device layer, the switching layer, the capacitor layer, and the inductor layer. The switching circuits, the capacitors and the inductors form a switching power supply for supplying power to the device layer. | 2015-08-13 |
20150229296 | SEMICONDUCTOR DEVICES WITH PERIODIC SIGNAL GENERATION CIRCUITS AND SEMICONDUCTOR SYSTEMS INCLUDING THE SAME - A semiconductor system includes a controller and a semiconductor device. The controller receives a temperature signal including information on temperature variation to generate an auto-refresh signal. The semiconductor device generates the temperature signal and controls an amount of electric charges discharged from an internal node according to temperature variation to generate a periodic signal including pulses sequentially created. The semiconductor device also receives the periodic signal or the auto-refresh signal to perform a refresh operation. | 2015-08-13 |
20150229297 | HIGH VOLTAGE DRIVER USING LOW VOLTAGE TRANSISTOR - A high voltage driver may include: a low side switching unit including first to n-th N-channel metal oxide semiconductor (NMOS) transistors; a high side switching unit including first and second to n-th P-channel MOS (PMOS) transistors; a voltage dividing unit dividing a voltage between the output terminal and the ground; a first constant voltage unit providing a constant voltage and a unidirectional signal path between a source and a gate of each of the first to n-th NMOS transistors; a second constant voltage unit providing a constant voltage and a unidirectional signal path between a source and a gate of each of the first to n-th PMOS transistors; a first charging unit providing a charged voltage to each of the gates of the second to n-th NMOS transistors; and a second charging unit providing a charged voltage to each of the gates of the second to n-th PMOS transistors. | 2015-08-13 |
20150229298 | CLOCK CONTROL CIRCUIT, RECEIVER, AND COMMUNICATION DEVICE - A clock control circuit includes: a first buffer that receives a first pair of input clocks of multi-phase clocks, buffers and outputs the first pair of input clocks; a second buffer that receives a second pair of input clocks of the multi-phase clocks, and is controllable to buffer and output the second pair of input clocks or to output a fixed level; and a frequency multiplier that performs a logical operation on an output of the first buffer and an output of the second buffer, and outputs a first pair of output clocks or a second pair of output clocks as an output clocks, the first pair of output clocks is based on a frequency which is obtained by multiplying frequencies of the multi-phase clocks, and the second pair of output clocks is based on the same frequencies as the multi-phase clocks. | 2015-08-13 |
20150229299 | SEMICONDUCTOR DEVICE AND OPERATION METHOD THEREOF - A semiconductor device includes a driving unit suitable for driving a plurality of signal lines, which are directly coupled to a plurality of bump pads, to a preset voltage level in a level determination period, and adjusting the preset voltage level in a predetermined order when the level determination period is repeated, a signal input circuit suitable for receiving voltage levels that are inputted through the signal lines and determining logic values for the inputted voltage levels of the signal lines, and an operation unit suitable for receiving voltage levels of the signal lines from the signal input circuit in a parallel manner in the level determination period, latching the logic values of the voltage levels, and serially outputting the logic values through a probe pad. | 2015-08-13 |
20150229300 | RECEIVER CIRCUIT - A receiver circuit includes a first amplification unit, a second amplification unit, a first equalizing unit, and a second equalizing unit. The first amplification unit is configured to differentially amplify an input signal and a reference signal and generate a positive intermediate output signal and a negative intermediate output signal. The second amplification unit is configured to receive the positive intermediate output signal as a positive input signal and the negative intermediate signal as a negative input signal, differentially amplify the positive and negative input signals and generate a positive output signal and a negative output signal. The first equalizing unit is configured to control the level of the negative intermediate output signal in response to the positive output signal. The second equalizing unit is configured to control the level of the positive intermediate output signal in response to the negative output signal | 2015-08-13 |
20150229301 | SIGNAL PROCESSOR - A signal processor includes an amplifier that amplifies a control signal which is input into the amplifier to output an amplified control signal; and a controller that performs predetermined control based on the amplified control signal. When the control signal is not input into the amplifier, the amplifier amplifies a voltage signal input from a power source for driving the amplifier. | 2015-08-13 |
20150229302 | SENSE AMPLIFIER AND METHOD OF OPERATING THE SAME - A sense amplifier includes a differential input circuit, a floating prevention circuit, and a differential amplifier. The differential input circuit output a first current flowing through a first node according to a first input signal, and second current flowing through a second node according to a second input signal. The floating prevention circuit outputs a third current flowing through the first node according to the second input signal, and fourth current flowing through the second node according to the first input signal. The differential amplifier generates a first output signal according to the first current or the third current flowing through the first node, and a second output signal according to the second current or the fourth current flowing through the second node. The sense amplifier may be coupled to a latch to form a flip-flop circuit. | 2015-08-13 |
20150229303 | POWER DISTRIBUTION NETWORK (PDN) CONDITIONER - Systems and methods for conditioning a power rail (e.g., reducing voltage droops and/or voltage overshoots on the power rail) are described herein. In one embodiment, a power circuit comprises a capacitor coupled to a high-voltage rail, and a droop slope limiter (DSL) coupled between the high-voltage rail and a power rail. The DSL is configured to detect a downward voltage slope on the power rail, and to control current flow from the high-voltage rail to the power rail through the DSL based on the detected downward voltage slope. | 2015-08-13 |
20150229304 | SEMICONDUCTOR DEVICE - According to one embodiment, the semiconductor device includes a power-on reset circuit and a constant voltage generation circuit. The power-on reset circuit generates a power-on reset signal to initialize an internal circuit when power supply is turned on. The constant voltage generation circuit supplies an output voltage to the internal circuit. The constant voltage generation circuit includes a differential amplifier, a first MOS transistor, a second MOS transistor, a switch, and a pull-up unit. The pull-up unit is provided between the power supply input terminal and the gate terminal of the second MOS transistor. The pull-up unit controls a voltage applied to the gate terminal of the second MOS transistor in accordance with the power-on reset signal. | 2015-08-13 |
20150229305 | PROXIMITY SWITCH ASSEMBY WITH SIGNAL DRIFT REJECTION AND METHOD - A proximity switch assembly and method for detecting activation of a proximity switch assembly is provided. The method includes steps of generating activation fields with a plurality of proximity sensors associated with a plurality of proximity switches, monitoring amplitude of a signal generated in response to each of the activation fields, subtracting the smallest signal from each of the other signals, and determining activation of one of the plurality of proximity switches based on the subtracted signals. A proximity sensor assembly and method of suppressing noise for a plurality of proximity sensors is also provided, which includes subtracting the smallest signal from each of other signals associated with a plurality of proximity sensors and determining activation of one of the plurality of proximity sensors based on the subtracted signals. | 2015-08-13 |
20150229306 | NONVOLATILE MEMORY DEVICE WITH ON-DIE CONTROL AND DATA SIGNAL TERMINATION - In a non-volatile memory device having an array of non-volatile storage elements, control information received via one or more control input nodes indicates, at different times, that (i) data signals representative of data to be stored within the array of non-volatile storage elements are to be received via a plurality of input/output (I/O) nodes of the non-volatile memory device, and (ii) data signals representative of data read from the array of non-volatile storage elements are to be output via the plurality of I/O nodes. First termination elements are switchably coupled to and decoupled from the I/O nodes based at least in part on the control information, and second termination elements are switchably coupled to and decoupled from the one or more control input nodes based at least in part on the control information. | 2015-08-13 |
20150229307 | Level Shifter With Improved Operation - A level shifter includes a first branch and a second branch. A trigger of the first branch is coupled to a low voltage input, an inverted high voltage output and a ground. A latch of the first branch is coupled to the inverted high voltage output and a high voltage output. A power gate of the first branch is coupled to an inverted low voltage input, the latch of the first branch and a high voltage supply. A trigger of the second branch is coupled to the inverted low voltage input, the high voltage output and the ground. A latch of the second branch is coupled to the high voltage output and the inverted high voltage output. A power gate of the second branch is coupled to the low voltage input, the latch of the second branch and the high voltage supply. | 2015-08-13 |
20150229308 | TRANSMITTER HAVING VOLTAGE DRIVER AND CURRENT DRIVER - A circuit includes a first power node that carries a first supply voltage having a first voltage level and a second power node that carries a second supply voltage having a second voltage level less than the first voltage level. A voltage driver has a first plurality of transistors, an input node for an input signal, and an output node, and a current driver has a second plurality of transistors. The current driver injects or extracts an adjustment current into or out of the output node. The first plurality of transistors and the second plurality of transistors electrically couple the output node and the current driver to the first power node in response to the input signal being at a first logic state, and electrically decouple the output node and the current driver from the first power node in response to the input signal being at a second logic state. | 2015-08-13 |
20150229309 | SEMICONDUCTOR DEVICE AND ELECTRONIC DEVICE - A semiconductor in which the area of a circuit that is unnecessary during normal operation is small is provided. A semiconductor device including a first circuit has a function of storing a start-up routine in the first circuit and executing the start-up routine, a function of operating the first circuit as a buffer memory device after executing the start-up routine, and a function of loading the start-up routine into the first circuit from outside before the semiconductor device is powered off. | 2015-08-13 |
20150229310 | SYSTEMS AND METHODS FOR FPGA DEVELOPMENT AND OPERATION - A design environment for FPGA applications enables configuration of an FPGA platform to include a user design and one or more interface units, which the user design can use to access one or more external modules/devices without needing any particular knowledge of the structure and operation of such modules/devices. The interface unit corresponding to an external device/module, under the control of an operating environment, can establish a communication between the user design and the external module/device. An external processing module can use an interface unit to monitor and/or control a user design. | 2015-08-13 |
20150229311 | OSCILLATOR FREQUENCY DIVIDER WITH IMPROVED PHASE NOISE - A gated divider circuit includes a windowing unit configured to generate windowing waveforms from input oscillator waveforms having a fixed duty cycle. Additionally, the gated divider circuit includes a gated output unit coupled to the windowing unit and configured to provide selected ones of the input oscillator waveforms as controlled by corresponding selected ones of the windowing waveforms. Also included are a method of operating a gated divider circuit and a frequency conversion system employing a gated divider circuit as a local oscillator divider. | 2015-08-13 |
20150229312 | CLOCK GENERATION CIRCUIT AND ELECTRONIC APPARATUS - A clock generation circuit includes a delay clock generation unit configured to generate a predetermined number of delay clock signals having different delay time periods for a reference clock signal; a low-speed clock generation unit configured to generate a low-speed clock signal having a lower frequency than the reference signal in accordance with a control signal that controls a phase; a control signal processing unit configured to perform, on the control signal, a quantization process for quantizing a value of the control signal into the predetermined number of discrete values and a modulation process for distributing a quantization error in the quantization process in a band of frequencies higher than a predetermined frequency; a selection unit configured to select any one of the predetermined number of delay signals in accordance with the control signal; and an output unit configured to output the low-speed signal in synchronization with the selected signal. | 2015-08-13 |
20150229313 | SIGNAL GENERATION CIRCUIT AND ELECTRONIC APPARATUS - A signal generation circuit includes a phase difference detector configured to detect a phase difference between a certain oscillation signal of a plurality of oscillation signals and a predetermined reference signal; an oscillator to which a plurality of delay elements are connected annularly, the oscillator being configured to generate the plurality of oscillation signals depending on the detected phase difference; a low-speed signal generation circuit configured to generate a low-speed signal having a lower frequency than the oscillation signal; a detection circuit configured to detect a difference between a predetermined reference timing and a timing at which the low-speed signal has changed; a selection unit configured to select the oscillation signal so that the phase difference with respect to the reference signal is close to the detected difference; and an output unit configured to output the generated low-speed signal in synchronization with the selected oscillation signal. | 2015-08-13 |
20150229314 | SEMICONDUCTOR DEVICE - In order to solve a problem that power consumption as to an edge sampling circuit is large in a semiconductor device in the related art, a semiconductor device according to one embodiment has a first sampling circuit for outputting an odd-numbered data value and an edge value and a second sampling circuit for outputting an even-numbered data value and an edge value, and a first offset and a second offset used for determining the edge value in one sampling circuit are determined based on a data value acquired from a location other than between a selector for selecting one of a plurality of data values sampled with a different offset in a path for sampling the data value and a shift register for transferring the data value selected by the selector in the other sampling circuit. | 2015-08-13 |
20150229315 | PHASE FREQUENCY DETECTOR - Described is an apparatus comprising: a first phase frequency detector (PFD) to determine a coarse phase difference between a first clock signal and a second clock signal, the first PFD to generate a first output indicating the coarse phase difference; and a second PFD, coupled to the first PFD, to determine a fine phase difference between the first clock signal and the second clock signal, the second PFD to generate a second output indicating the fine phase difference. | 2015-08-13 |
20150229316 | MONOLITHIC SIGNAL GENERATION FOR INJECTION LOCKING - A system for signal generation may include a phase-locked-loop including a first oscillator. The system may also include a second oscillator. The first oscillator may be configured to generate a first signal based on a phase-locked-loop control signal generated by the phase-locked-loop. The second oscillator may be configured to generate a second signal based on the phase-locked-loop control signal such that a free-running frequency of the first signal is approximately equal to a free-running frequency of the second signal to obtain injection locking between the first oscillator and the second oscillator when energy from the first oscillator is coupled into the second oscillator. | 2015-08-13 |
20150229317 | ARBITRARY PHASE TRAJECTORY FREQUENCY SYNTHESIZER - A frequency synthesizer directly generates phase modulated radio-frequency (RF) signals. The frequency synthesizer includes a voltage controlled oscillator (VCO) producing a synthesized frequency signal having a frequency controlled based on a signal received at an input of the VCO. A digitally adjustable frequency divider produces a reduced frequency signal from the synthesized frequency signal. A phase digital-to-analog converter (DAC) produces a delayed version of a timing signal (e.g., the reduced frequency signal, or a reference clock signal) that is delayed according to a digital control signal. A phase detector (PD) produces a phase control signal from the reduced frequency signal and/or the delayed timing signal. A digital signal converter controls the digitally adjustable frequency divider and the phase DAC so as to cause a phase or frequency of the synthesized frequency signal output by the VCO to track a desired phase or frequency trajectory encoded in a digital signal. | 2015-08-13 |
20150229318 | OSCILLATOR CIRCUIT AND FREQUENCY SYNTHESIZER - An oscillator circuit includes: an arithmetic section configured to correct a first input code value and thereby generate a first code value that is within a first predetermined range, the arithmetic section being configured to correct a second input code value in correspondence with a correction amount of the first input code value and thereby generate a second code value, and the first predetermined range being narrower than a range of the first input code value; and an oscillation section configured to generate an oscillation signal having a frequency that varies at first sensitivity based on the first code value and varies at second sensitivity based on the second code value, the second sensitivity being higher than the first sensitivity. | 2015-08-13 |
20150229319 | SYSTEMS AND METHODS FOR ACTIVE CANCELLATION FOR IMPROVING ISOLATION OF TRANSMISSION GATES IN HIGH-FREQUENCY ANALOG TO DIGITAL CONVERTERS - An active cancellation system may provide a first and second transmission gates that are fed with an input signal and a complimentary signal, respectively. The first transmission gate may be switched on/off, and a second transmission gate may remain off at all times. When switched off, the first transmission gate may provide a leakage signal resulting from leakage in current, especially at high input frequencies, which is detrimental to performance. The complimentary signal fed to the second transmission gate is out of phase with the input signal, but identical in amplitude. Thus, second transmission gate may output a signal that can cancel out the leakage signal from the first transmission gate. | 2015-08-13 |
20150229320 | SAMPLE HOLD CIRCUIT, A/D CONVERTER, CALIBRATION METHOD OF THE SAMPLE HOLD CIRCUIT, AND CIRCUIT - There is provided a pipelined A/D converter in which plural stages Stage | 2015-08-13 |
20150229321 | Successive approximation analog-to-digital converter and conversion method - The present invention discloses a successive approximation analog-to-digital converter, comprising: a capacitor array including a designated capacitor and several sampling capacitors to sample an input signal under a sampling mode; a comparator to compare a first voltage from the capacitor array with a second voltage under a comparison mode and thereby generate a comparison result; a switching circuit to determine the charge amount stored in the capacitor array under the sampling mode and the first voltage under the comparison mode according to a control signal; and a control circuit to generate the control signal according to a sampling setting under the sampling mode and generate the control signal according to the comparison result under the comparison mode. Said designated capacitor does no sampling under the sampling mode, but appropriates the charges of the sampling capacitors under the comparison mode, so as to reduce the effective sampling value. | 2015-08-13 |
20150229322 | PASSIVE AMPLIFICATION CIRCUIT AND ANALOG-DIGITAL CONVERTOR - A differential signal is amplified by passive amplification which does not a reference of a common-mode voltage. At this time, the voltage of the differential signal is passive-amplified twice before carrying out a successive approximation type analog-digital conversion operation. The passive amplification is attained by providing a plurality of capacitances which carry out a sampling operation, and switching these connection relation by using switches. Without being accompanied by the increase of the consumed power and the chip size, an influence by the noise of s comparator is reduced to a half so that the effective resolution can be increased for one bit. | 2015-08-13 |
20150229323 | MULTI-STAGE DIGITAL-TO-ANALOG CONVERTER - A circuit includes a first digital filter H(z), a second digital filter | 2015-08-13 |
20150229324 | NOISE SHAPING FOR DIGITAL PULSE-WIDTH MODULATORS - A circuit includes an analog-to-digital converter (ADC). The ADC is configured to receive an analog feedback signal and an analog input signal and generate a digital output. The circuit further includes a digital filter configured to filter the digital output and a noise shaper. The noise shaper is configured to truncate the filtered digital output and generate a noise shaper output, and to shape quantization noise generated during truncation. The circuit further includes a pulse width modulation digital-to-analog converter (PWM DAC) configured to process the truncated digital output of the noise shaper output and generate a PWM DAC output. | 2015-08-13 |
20150229325 | ENCODING FOR PARTITIONED DATA BUS - A data bus is split into partitions and encoding is independently applied to data transmitted over each bus partition to improve power and/or throughput efficiency. The encoding can be data bus inversion or any other suitable type of encoding. An encoding indicator symbol transmitted in conjunction with the data indicates which bus partition is encoded, if any. In some implementations, encoding is selectively applied to each bus partition during each data transfer cycle of a parallel data bus. In some implementation, the encoding indicator symbol is a multi-level signal where each level of the multi-level signal represents at least two bits of information indicative of, for a corresponding bus partition, whether encoding is applied to the data to be transmitted over the bus partition. Advantageously, the encoding indicator symbol can be transmitted over a single, dedicated bus line. | 2015-08-13 |
20150229326 | BOOSTING DECOMPRESSION IN THE PRESENCE OF REOCCURRING HUFFMAN TREES - For boosting decompression in the presence of reoccurring Huffman trees, a previous Huffman tree is used to decompress a new data block if a match is identified between a compacted description of the Huffman tree and a recently used Huffman tree compaction. | 2015-08-13 |
20150229327 | MULTIPLEXER - A multiplexer may include a first circuit, a second circuit, and a third circuit. The first circuit may be configured to receive a first input signal and a first trigger signal and to output a first output signal that may be based on the first input signal during a first level of the first trigger signal and may be at a known level during a second level of the first trigger signal. The second circuit may be configured to receive a second input signal and a second trigger signal and to output a second output signal that may be based on the second input signal during a first level of the second trigger signal and may be at the known level during a second level of the second trigger signal. The third circuit may be configured to output a third output signal based on the first and second output signals. | 2015-08-13 |
20150229328 | MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 2/15 CODE RATE - A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis. | 2015-08-13 |
20150229329 | ENCODING/DECODING SYSTEM FOR PARALLEL DATA - An object is to enable erasure correction even at the time of a degeneration operation and reduce the number of necessary parallel media through dynamic setting of degree of redundancy. A parallel data encoding/decoding system performs parallel data transmissions using a plurality of lanes from an encoder to a decoder. The encoder encodes products of elements of an encoding vector M of symbols of each lane and a state vector U indicating validity of the symbols, and transmits the state vector U along with a transmission vector Y obtained through the encoding. The decoder decodes a subset M | 2015-08-13 |
20150229330 | VARIABLE SHIFTER, DECODER, AND DATA SHIFTING METHOD - A variable shifter includes: a plurality of shifters that cyclically shift input data having a plurality of bits or cyclically shifted data; and a control unit that selects a shift amount for each of the plurality of shifters in accordance with a predetermined cyclic shift amount. The number of types of the predetermined cyclic shift amount is smaller than the number of bits in the input data, each shifter selects one of a plurality of shift amounts in accordance with the predetermined cyclic shift amount, and the plurality of shift amounts have a combination of shift amounts that differ from one shifter to another. | 2015-08-13 |
20150229331 | Systems and Methods for Area Efficient Data Encoding - The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for data encoding. | 2015-08-13 |
20150229332 | LDPC CODE MATRICES - An LDPC parity check matrix, includes a systematic portion having a plurality of systematic elements having a value, the value each systematic element determining a cyclic shift to be applied to rows of an identity submatrix corresponding to that element; and a parity portion having a plurality of parity elements having a value, the value of each parity element determining a cyclic shift to he applied to rows of an identity submatrix corresponding to that element; wherein the weights of each column of a group of columns of the parity portion is the same. The LDPC parity check matrix may be used for data access, communication and storage, and may be used, for example for communications among a plurality of network nodes. | 2015-08-13 |
20150229333 | Systems and Methods for Rank Deficient Encoding - The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for data encoding. | 2015-08-13 |
20150229334 | MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 7/15 CODE RATE - A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 7/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis. | 2015-08-13 |
20150229335 | MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 3/15 CODE RATE - A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis. | 2015-08-13 |
20150229336 | MODULATOR AND MODULATION METHOD USING NON-UNIFORM 16-SYMBOL SIGNAL CONSTELLATION FOR LOW-DENSITY PARITY CHECK CODEWORD HAVING 4/15 CODE RATE - A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 4/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis. | 2015-08-13 |
20150229337 | MITIGATION OF WRITE ERRORS IN MULTI-LEVEL CELL FLASH MEMORY THROUGH ADAPTIVE ERROR CORRECTION CODE DECODING - An apparatus includes a controller and an adaptive error correction code decoder. The controller may be configured to read data from and write data to a memory device. The controller may be further configured to write data in a two-step process, which includes (i) after writing data to a least significant bit (LSB) page, checking the data stored in the LSB page using a first strength error correction code (ECC) decoding process and (ii) after writing data to a most significant bit (MSB) page associated with the LSB page, checking the data stored in both the LSB and MSB pages using a second strength error correction code (ECC) decoding process. | 2015-08-13 |
20150229338 | Dynamically Reconfiguring Rebuild Agents For Erasure Code Rebuild - Example apparatus and methods support reconstructing an item from a set of erasure codes (e.g., fountain codes). Information about computer resources available to support reconstructing the item may be accessed and analyzed to control the spawning of multiple computer processes to support reconstructing the item. The information may include, for example, utilization and capacity data. The information may be provided by sensor agents that monitor the resources. The multiple computer processes may operate at least partially in parallel. Resources may be identified and computer processes may be spawned until all the resources that can contribute to the reconstruction are used. In one embodiment, computer processes may be spawned until the marginal utility of spawning another process falls below a threshold. | 2015-08-13 |
20150229339 | Adjusting Redundancy In An Erasure Code Object Store To Account For Varying Data Value - Example apparatus and methods control the number of rateless erasure codes (e.g., fountain codes) stored in an object store for an item (e.g., file stored as object). The codes for the item may be generated according to an M/N policy. A first safety factor that controls how many codes are stored initially in the object store is identified. A first number of codes are then stored in the object store, where the first number is selected as a function of the first safety factor. A second safety factor for the item and a condition under which the second safety factor is to be used to control the number of codes to be stored in the object store is also identified. When the condition is detected, a second number of codes are stored in the object store, where the second number is selected as a function of the second safety factor. | 2015-08-13 |
20150229340 | RECOVERY FROM BURST PACKET LOSS IN INTERNET PROTOCOL BASED WIRELESS NETWORKS USING STAGGERCASTING AND CROSS-PACKET FORWARD ERROR CORRECTION - A method and apparatus for staggercasting are described including encoding and compressing a first data sequence, packetizing the compressed encoded data sequence to form a data packet, performing forward error correction (FEC) encoding on the data packet in order to generate a second data sequence related to the first data sequence, appending FEC control information as padding to the end of payload data of the data packet, packetizing the second data sequence to form a packet, multicasting the data packet to a first multicast group, multicasting the packet formed using the second data sequence delayed by an offset time to a second multicast group. | 2015-08-13 |
20150229341 | SYSTEM AND METHOD FOR CAPTURING AND DECONTAMINATING PHOTOPLETHYSMOPGRAPHY (PPG) SIGNALS IN A VEHICLE - A system and method for processing photoplethysmography (PPG) signals in a vehicle. The system and method include receiving a PPG waveform signal from an optical sensor. The system and method also include processing a PPG measurement signal based on the PPG waveform signal. The system and method additionally include receiving a noise waveform signal from at least one of: a seat assembly sensor, a vehicle sensor, and a vehicle system. Additionally, the system and method include processing a motion artifacts measurement signal based on the noise waveform signal. The system and method further include processing a refined PPG signal to suppress the motion artifacts measurement signal from the PPG measurement signal. | 2015-08-13 |
20150229342 | METHODS REDUCING ANTENNA PORT INTERFERENCE FOR EPDCCH AND RELATED SYSTEMS, DEVICES, AND NETWORKS - A method of operating a base station in a radio access network may include configuring first and second control channel sets with respective first and second antenna port configurations for a wireless terminal using control channel signaling transmitted to the wireless terminal. First reference signals may be transmitted to the wireless terminal according to the first antenna port configuration, and second reference signals may be transmitted to the wireless terminal according to the second antenna port configuration. | 2015-08-13 |
20150229343 | WIDEBAND DIGITAL SPECTROMETER - A processor, comprising a first data input configured to receive a stream of samples of a first signal having a spectral space, the stream having a data rate of at least 4 GHz; a second data input configured to receive a stream of samples of a second signal; a multitap correlator, configured to receive the first stream of samples and the second stream of samples, and producing at least one correlation output for each respective sequential sample of the first signal received; and a programmable control configured to alter a relationship of the stream of samples of the first signal and the stream of samples of the second signal, to thereby select, under program control, an alterable correlation output. | 2015-08-13 |
20150229344 | HIGH FREQUENCY TRANSCEIVER - There is provided a high frequency transceiver appropriate for ultra low power and high frequency characteristics. The high frequency transmitting device includes a voltage controlled oscillator configured to provide an oscillation signal; and a power amplifier configured to multiply the oscillation signal by an integer to generate a carrier signal, mix the carrier signal and a baseband signal to generate a mixed signal, and amplify power of the mixed signal. | 2015-08-13 |
20150229345 | MOBILE TELEPHONE HOLDING DEVICE - The present invention relates to a mobile telephone holding device which includes a main body, an arm, at least two clamping elements, a wireless electrical charging device with which a mobile telephone can be charged and an electrical switching device, wherein the arm s mounted on the main body in such a way that the arm can be moved between an inoperative position (R) and at least one holding position (H) against a restoring force, wherein the electrical switching device, depending on the position of the arm, interrupts an electrical line which leads to the charging device in the inoperative position (R) of the arm, and closes the electrical line which leads to the charging device in each holding position (H) of the arm. | 2015-08-13 |
20150229346 | AMPLIFIER CIRCUIT, ANTENNA MODULE AND WIRELESS COMMUNICATION APPARATUS - An amplifier circuit that amplifies a carrier wave that a transmitting and receiving part has received, and includes a superimposition wave generation part that generates a superimposition wave to be superimposed onto the carrier wave; an amplifying part that adds the carrier wave and the superimposition wave to obtain an amplified carrier wave and outputs the amplified carrier wave; and an amplitude detection part that detects, based on a change in an amplitude value of the carrier wave, that the carrier wave is a predetermined carrier wave that carries a predetermined communication signal. The amplifier circuit outputs the amplified carrier wave when having detected the predetermined carrier wave. | 2015-08-13 |
20150229347 | TRANSCEIVER AND RELATED SWITCHING METHOD APPLIED THEREIN - A transceiver includes a power amplifying circuit, a first balance-unbalance circuit, a switchable matching circuit, and a low-noise amplifying circuit. The power amplifying circuit generates differential output signals during a transmitting mode of the transceiver. The first balance-unbalance circuit converts the differential output signals into a single-ended output signal. The switchable matching circuit receives the single-ended output signal on a signal port of the transceiver during the transmitting mode, and converts a single-ended receiving signal on the signal port into a single-ended input signal during a receiving mode of the transceiver. The low-noise amplifying circuit converts the single-ended input signal into a low-noise input signal during the receiving mode. | 2015-08-13 |
20150229348 | MODE-BASED ANTENNA TUNING - Exemplary embodiments are related to antenna tuners. A device may include a transceiver configured to operate in a frequency division duplex (FDD) network. The device may also include an antenna tuner coupled to the transceiver. Further, the device includes a processor configured to tune the antenna tuner for a receive frequency if the device is operating in receive mode and tune the antenna tuner for a transmit frequency if the device is operating in a transmit and receive mode. | 2015-08-13 |
20150229349 | SIMPLE BLOCK SPACE TIME TRANSMIT DIVERSITY USING MULTIPLE SPREADING CODES - A base station and user equipment (UE) for use in a CDMA communication system are disclosed. The base station includes a first and second antenna for transmitting first and second communication bursts. The first channelization device spreads data using a first channelization code and the second channelization device spreads the data using a second channelization code. The UE has a data detection device for receiving a signal including the first and second communication bursts. | 2015-08-13 |
20150229350 | BROADCASTING TRANSMISSION APPARATUS AND METHOD THEREOF FOR SIMULCAST BROADCASTING - Disclosed is a transmitter installed in a base station included in a wireless communication system for acquiring synchronization including: an IFFT unit configured to perform IFFT with respect to a QAM signal into which a pilot signal is inserted to generate an OFDM signal; a direct sequence spectrum spread signal generator configured to phase shift keying (PSK)-modulate a unique pseudonoise (PN) sequence specifying the base station to generate a direct sequence spectrum spread signal synchronized with the OFDM signal; and an RF transmitter configured to couple the generated OFDM signal and the direct sequence spectrum spread signal synchronized with the OFDM signal, transform the coupled signal into an RF signal, and transmit the signal transformed into the RF signal through an antenna. | 2015-08-13 |
20150229351 | METHOD FOR RADIO TRANSMISSION BY ULTRA WIDEBAND TRANSMISSION - Message symbols are sent radio transmission using an ultra wideband transmitter emitting a pulse-phase-modulated transmission signal that has isolated pulses, each of which has a time offset in relation to a time pattern, which time offset is dependent on a message symbol that the pulse represents. The transmission signal has a line spectrum having a multiplicity of modulated frequency lines. The transmission signal is received at a receiver, which obtains a narrowband signal from a single one of the modulated frequency lines. The modulated frequency line includes a bandwidth that corresponds to less than twice a pattern frequency of the time pattern. A phase of the narrowband signal is ascertained at predetermined instants and the respectively ascertained phase is associated with one of a plurality of predetermined message symbols. | 2015-08-13 |
20150229352 | METHOD AND APPARATUS FOR MITIGATING SIGNAL INTERFERENCE IN A FEEDBACK SYSTEM - A system that incorporates the subject disclosure may include, for example, a process that includes adjusting a filter in electrical communication between an input terminal and a demodulator. The filter is applied to an information bearing signal, e.g., to mitigate interference, received at the input terminal, resulting in a filtered signal. An error signal is received, indicative of errors detected within information obtained by demodulation of a modulated carrier of the filtered signal. A modified filter state is determined in response to the error signal and the filter is adjusted according to the modified filter state, e.g., to improve mitigation of the interference. Other embodiments are disclosed. | 2015-08-13 |
20150229353 | ECHO CANCELLATION METHODOLOGY AND ASSEMBLY FOR ELECTROACOUSTIC COMMUNICATION APPARATUSES - A feedback cancellation assembly for an electroacoustic communication apparatus may include a signal transmission path for generation and emission of an outgoing sound signal to an external environment through an electrodynamic loudspeaker and a signal reception path comprising a microphone for generation of a microphone input signal corresponding to sound received from the external environment. The signal reception path may generate a digital microphone signal. The outgoing sound signal may be acoustically coupled to the microphone. An electronic feedback cancellation path may be coupled between a tapping node and a summing node to produce a feedback cancellation signal to the summing node. | 2015-08-13 |
20150229354 | VECTORING FOR LOW POWER MODES - In one embodiment, the method includes determining, at an access node, a precoder matrix for precoding transmission from the access node to a plurality of downstream devices over a plurality of lines. The plurality of lines include high power lines and low power lines. The high power lines are in active communication and transmit more symbols per frame than the low power lines. The method further includes precoding a signal vector using the precoder matrix regardless of the symbols the signal vector is sending over the low power lines. Here, the determining determines the precoder matrix such that the precoding does not mitigate the cross-talk effect the high power lines have on the low power lines. The method also includes transmitting over the plurality of lines based on the precoded signal vector. | 2015-08-13 |
20150229355 | METHOD AND DEVICE FOR IDENTIFYING CROSSTALK - In a method and a device for identifying crosstalk from a disturbing telecommunication line to a victim telecommunication line of a communication network, the identifying depends on quiet line noise measurement data related to the victim telecommunication line. In order to provide such a method and associated device that allows for detecting abnormally high crosstalk caused by high bit rate telecommunication lines running in parallel to a section of the victim telecommunication line, the method includes estimating a coupling length depending on the quiet line noise measurement data; and detecting depending on the coupling length and a physical length of the victim telecommunication line that the crosstalk is caused by the disturbing telecommunication line extending in parallel to a section of the victim telecommunication line. | 2015-08-13 |
20150229356 | METHOD AND APPARATUS FOR SENDING SELT MEASUREMENT SIGNAL, AND CONTROL DEVICE - Embodiments of the present invention relate to a method and an apparatus for sending a single-ended loop testing SELT measurement signal, and a control device. The method for sending a SELT measurement signal includes: aligning a synchronization symbol of a digital subscriber line on which a SELT diagnosis needs to be performed with a synchronization symbol of at least one DSL line for data transmission, where the synchronization symbol of the digital subscriber line on which a SELT diagnosis needs to be performed and the synchronization symbol of the at least one digital subscriber line for data transmission are uplink or downlink synchronization symbols; and carrying a SELT measurement signal over the aligned synchronization symbol of the DSL line on which a SELT diagnosis needs to be performed, where the SELT measurement signal is used to detect transmission quality or a line fault of the DSL line. | 2015-08-13 |
20150229357 | Obstruction Lighting and Power Line Communication System - An obstruction lighting and power line communication system is provided. The system includes a first controller coupled to and configured to control a first light source. The system includes a first transceiver associated with the first light source and configured to transmit and receive telemetry data signals associated with the first light source. The system includes a power line cable coupling the first controller and the first transceiver. The system includes a power supply coupled to the power line cable and configured to provide power to the first light source over the power line cable. The system includes a system controller configured to exchange control and telemetry signals with the first controller and the first transceiver over the power line cable. | 2015-08-13 |
20150229358 | POWER LINE COMMUNICATION TRANSCEIVER AND POWER LINE COMMUNICATION METHOD - One embodiment of the present invention provides a transceiver for power line communication, including: a transmission unit configured to transmit a signal; and a reception unit configured to estimate characteristics of a transmission path. Further, another embodiment of the present invention provides a power line communication method, including the steps of: estimating transmission path characteristics; generating an interference avoiding mask based on interference of the estimated transmission path characteristics; selecting or cancelling, through use of the interference avoiding mask, a sub-carrier of a signal to be transmitted; and transmitting the signal. | 2015-08-13 |
20150229359 | POWERLINE MODEM DEVICE - A broadband powerline communications device includes a plug for connection to mains electrical wiring, a broadband powerline medium interface circuit for communicating broadband data over the mains electrical wiring, at least one electrical socket for providing mains electrical power from the mains electrical wiring to a further device plugged thereto, and energy consumption monitoring circuitry for monitoring the energy consumption of the further device. These components are formed in a housing with the plug is integrally formed with the housing or separated from the housing by a length of power cable. The device may also include a communications socket for wired communications and/or a wireless router for servicing wireless communications. The device may further include a mains filter with one or more components of the mains filter used in determining the instantaneous level of the voltage and/or current supplied to the further device. | 2015-08-13 |
20150229360 | Provisioning a Wireless-Capable Device for a Wireless Network - Disclosed are exemplary embodiments of apparatus and methods for provisioning a wireless-capable device for a wireless network. In an exemplary embodiment, a wireless-capable device, e.g., a thermostat, generally includes provisioning component(s) configured to receive from, and without a wired connection to, a wireless user device at least a network profile for provisioning the wireless-capable device for a wireless network. The provisioning components have no capability to receive the network profile through the wireless network. The provisioning component(s) are further configured to provide information for provisioning control of the wireless-capable device to a user account accessible through the wireless network. | 2015-08-13 |
20150229361 | SYSTEM AND METHOD FOR OPERATING A MOBILE DEVICE - The present invention provides a mobile device including: a power receiver for wirelessly coupling with a power transmitter to receive power wirelessly from the power transmitter; and a function that automatically initiates upon the power receiver wirelessly coupling with the power transmitter. Also provided is a transmitter apparatus including a power transmitter for wirelessly coupling with a power receiver in a mobile device to provide power wirelessly to the power receiver, wherein, upon the power receiver wirelessly coupling with the power transmitter, data is transferred between the power transmitter and the power receiver and a function of the mobile device automatically initiates. The mobile device and transmitter apparatus together form a system for operating the mobile device. Methods and computer-readable media storing executable application programs associated with the system are also provided. | 2015-08-13 |
20150229362 | MEASUREMENT AND REPORTING OF RECEIVED SIGNAL STRENGTH IN NFC ENABLED DEVICES - An NFC-enabled device including tag emulation circuitry and reader emulation circuitry operates so as to provide a signal strength meter function. The signal strength meter function, in tag emulation mode, measures and reports on how well the tag is coupled to a third party reader field. In reader emulation mode, the signal strength meter function measures and reports how well the reader of the NFC-enabled device couples to a tag that is being read. One exemplary method includes detecting an NFC reader field, operating reader receiver circuitry at the NFC-enabled device so as to at least determine the strength of a signal received from the reader field, generating information representative of the determined strength of the signal received from the reader field at a first time, and performing one or more predetermined actions based at least in part on the one or more signals representative of the determined strength. Predetermined actions may include generating visual, audio, and/or other indications of the received signal strength. | 2015-08-13 |
20150229363 | NFC Device Combining Components of Antenna Driver and Shunt Regulator - Embodiments of the present disclosure can be used to produce smaller, more compact antenna drivers at a reduced cost. Systems and methods for integrating components of an antenna driver with components of a shunt regulator and clamp are provided. By combining these components according to embodiments of the present disclosure, transistor count in an antenna driver can be reduced. This integrated device advantageously allows antenna driver functionality, regulator functionality, and clamp control functionality to be provided at a reduced manufacturing cost and with reduced real estate. | 2015-08-13 |
20150229364 | TRANSMITTER AND RECEIVER OF MULTIPLE-SUBCARRIER SIGNALS THROUGH POLARIZATION ANTENNA AND METHOD FOR CONTROLLING THE SAME - Disclosed is a data transmitter, including: a demultiplexer configured to demultiplex a data subcarrier, and a training sequence or a pilot subcarrier included in a signal which needs to be frequency-shifted among a plurality of signals; a frequency shift unit configured to frequency-shift the demultiplexed data subcarrier based on a predetermined frequency; a superposition unit configured to generate a polarization signal by superimposing the demultiplexed training sequence or pilot subcarrier, and the frequency-shifted data subcarrier; and a polarization antenna configured to transmit a signal which need not be frequency-shifted and the generated polarization signal among the plurality of signals. | 2015-08-13 |
20150229365 | COMMUNICATION DEVICE OF MOBILE TERMINAL AND MOBILE TERMINAL - A communication device of a mobile terminal and a mobile terminal are provided. The communication device includes a communication module mainboard that has a communication module disposed thereon; a main antenna that is coupled to the communication module mainboard; a MIMO antenna capable of enhancing signals; and a MIMO board coupled to the communication module mainboard via a spring contact plate; and the MIMO antenna is coupled to the MIMO board via a coaxial cable. Since the main antenna and the MIMO antenna are separately disposed, their interference can be reduced, and the overlapping disposal of the main antenna and the MIMO antenna can be avoided, and the thickness of the mobile terminal can be reduced. The MIMO antenna is coupled to the communication module via the coaxial cable, so the MIMO antenna can be freely adjusted and disposed anywhere within the mobile terminal. | 2015-08-13 |
20150229366 | Dual codeword re-transmission - The present invention addresses apparatuses, methods and computer program product for providing enhanced codeword re-transmission for multi-codeword in 4 antenna branch HSDPA MEMO wireless communication network, thereby preventing getting stuck in higher than rank | 2015-08-13 |
20150229367 | APPARATUS FOR TRANSMITTING BROADCAST SIGNALS, APPARATUS FOR RECEIVING BROADCAST SIGNALS, METHOD FOR TRANSMITTING BROADCAST SIGNALS AND METHOD FOR RECEIVING BROADCAST SIGNALS - A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an input formatter for input formatting input streams, wherein the input formatting includes a divider for dividing the input streams into each data transmission path including one or multiple service or service component, wherein each of the input streams includes at least one IP (Internet Protocol) packet having a variable length, wherein each IP packet includes a packet header and a packet payload, a compressor for compressing each the packet header, an encoder for encoding data in the each data transmission path, a frame builder for building at least one signal frame, wherein each the signal frame includes the encoded data and a signaling data and a modulator for modulating at least one of the signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme. | 2015-08-13 |
20150229368 | FRAME SYNCHRONIZATION METHOD AND APPARATUS OF WIRELESS SYSTEM, AND WIRELESS SYSTEM - Embodiments of the present invention provide a frame synchronization method. The frame synchronization method of the wireless system includes: separately delaying a signal received from one of N receiving antennas in K tributaries, and outputting K delayed signals, where N and K are positive integers; generating a first output signal by performing a correlation operation on the K delayed signals and a preamble subsequence; generating a second output signal by performing the correlation operation on each of the K delayed signals and each of the K delayed signals itself; and performing cancellation processing for the first output signal and the second output signal to obtain a string of data stream, obtaining a maximum value of the string of data stream as a correlation peak, so as to determine a position of a frame header according to a time point corresponding to the correlation peak. | 2015-08-13 |
20150229369 | Method and system for content-aware mapping/error protection using different spatial streams - Aspects of a method and system for content-aware mapping/error protection using different spatial streams are presented. Aspects of a system for handling multimedia information in a communication system may include a transmitter that enables control of a MAC layer and/or a PHY layer, in a wireless communication device to wirelessly communicate different portions of multimedia information via different spatial streams based on content of the multimedia information. The system may also comprise a processor that enables definition of a plurality of priority classes based on the content associated with at least a portion of the multimedia information. | 2015-08-13 |
20150229370 | METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM - There is disclosed a method performed by a User Equipment, UE, for Hybrid Automatic Repeat Request, HARQ, retransmission of data in a multi-antenna wireless communication system. The method comprises, receiving Acknowledgement/Negative Acknowledgement, ACK/NACK, feedback information relating to data transmitted on two streams, and performing, upon rank reduction where only one stream is available for transmission, retransmission of data on a cancelled stream over the remaining stream. There is furthermore disclosed a UE configured for performing the method. A transmission method together with an arrangement for a UE is also disclosed. | 2015-08-13 |
20150229371 | METHOD FOR TRANSMITTING EFFICIENT FEEDBACK IN MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - The present invention relates to a method for transmitting a signal of a transmitting side in a wireless communication system that supports multiple antennas. More particularly, the method comprises the steps of: receiving, from a receiving side, feedback information for transmitting the signal of the transmitting side; and transmitting a signal to which a precoding matrix (W) is applied on the basis of the feedback information, wherein the precoding matrix (W) is expressed as a multiplication of two precoding matrices (W | 2015-08-13 |
20150229372 | SYSTEMS AND METHODS FOR MAPPING VIRTUAL RADIO INSTANCES INTO PHYSICAL VOLUMES OF COHERENCE IN DISTRIBUTED ANTENNA WIRELESS SYSTEMS - Systems and methods are described for mapping Virtual Radio Instances (VRIs) into physical volumes of coherencein a Multiple Antenna System (MAS) with Multi-User (MU) transmissions (“MU-MAS”). These mapping methods enable communications through simultaneous non-interfering data streams in the same frequency band between the MU-MAS and multiple users, within their own volume of coherence. As the users move, their VRIs follow their respective volumes of coherence via teleportation to adjacent MU-MAS networks, thereby eliminating the need for handoffs as in conventional cellular systems and unnecessary control data overhead. | 2015-08-13 |
20150229373 | INTERFERENCE CANCELLATION SCHEME USING CONSTELLATION DIAGRAM - Provided is an interference cancellation method by a User Equipment (UE) in a cellular communication system. The method includes receiving a signal including a desired signal and an interference signal from at least one base station; determining a universal constellation diagram based on at least one of a transmission parameter of the desired signal and a transmission parameter of the interference signal; blindly detecting an additional transmission parameter of the interference signal using the determined universal constellation diagram; and cancelling the interference signal from the received signal using the detected additional transmission parameter. | 2015-08-13 |
20150229374 | WIRELESS COMMUNICATIONS SYSTEM, WIRELESS COMMUNICATIONS APPARATUS, WIRELESS COMMUNICATIONS METHOD AND COMPUTER PROGRAM FOR WIRELESS COMMUNICATION - In performing SVD-MIMO transmission, a set-up procedure is simplified while assuring a satisfactory decoding capability with a reduced number of antennas. A transmitter estimates channel information based on reference signals sent from a receiver, determines a transmit antenna weighting coefficient matrix based on the channel information, calculates a weight to be assigned to each of components of a multiplexed signal, and sends, to the receiver, training signals for respective signal components, the training signals being weighted by the calculated weights. On the other hand, the receiver determines a receive antenna weighting coefficient matrix based on the received training signals. | 2015-08-13 |
20150229375 | Methods and Apparatus for Beamforming - Systems and techniques for carrier aggregated beamforming using elevation control. A base station determines a first elevation to be used for transmission to a user device using a first carrier, for example, based on information received from the user device. A second elevation, for transmission to the user device based on the second carrier, is determined based at least in part on the elevation information determined for the first carrier. The first and second carriers may be used by the same base station or by different base stations, and using elevation information determined for the first carrier to determine elevation information for the second carrier avoids computation and signaling needed for separate determination of the elevation information for the second carrier. | 2015-08-13 |
20150229376 | AIRCRAFT-ANTENNA CONTROLLING DEVICE, AIRCRAFT, AIRCRAFT-ANTENNA SELECTING PROGRAM, AND AIRCRAFT-ANTENNA CONTROLLING METHOD - A control unit of an aircraft includes a computer that predicts the current position of a wingman aircraft based on a temporal change in wingman-aircraft position information indicating the position of the wingman aircraft; an antenna selector that selects, from among multiple antennas, an antenna with which the elongation φt with respect to the center axis of the antenna at the predicted current position of the wingman aircraft predicted by the computer falls within a coverage angle θ; and a beam controller that executes communication with the wingman aircraft via the antenna selected by the antenna selector. Thus, the control unit of the aircraft can select an optimal antenna for communication with the wingman aircraft from among the multiple antennas. | 2015-08-13 |
20150229377 | METHOD AND APPARATUS FOR A CLUSTER SPECIFIC CSI FEEDBACK - Embodiment herein provide a method and system of reporting cluster specific CSI feedback by user equipment (UE) to a cloud system. The UE associates with the cloud using a biased association or an unbiased association. In a biased association, a ratio between the highest received power from a Macro BS and a Pico base station is determined by the UE and compared with a threshold (bias). If the ratio is greater than the bias, the UE associates with the Pico BS. The UE reports CSI for a set of dominant Macro BSs and Pico BSs within a cluster. The UE can report the IDs of the BSs which contribute to dominant interference caused by the BSs of neighboring clusters. | 2015-08-13 |
20150229378 | Reporting of Channel State Information - A mobile station is connected to a multi-carrier cellular communication system having a plurality of sub-carriers. The sub-carriers are classified into K frequency sub-bands, channel state information (CSI) of the frequency sub-bands is represented by matrices W | 2015-08-13 |
20150229379 | METHOD AND TERMINAL APPARATUS FOR RECEIVING REFERENCE SIGNAL - A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased. | 2015-08-13 |
20150229380 | MOBILE TELECOMMUNICATION SYSTEM USING SOFT-INFORMATION DEQUANTIZER - A transmission method and corresponding mobile communication system are described. A mobile terminal transmits information via an access channel to a base station that quantizes the received symbols and forwards these via a forward path to a central baseband unit. In the central baseband unit soft information relating to the transmitted information is determined based on received forwarded symbols, a quantizer codebook and the deployed mapping of the mobile terminal. Said soft information may serve as a basis for decoding the information. | 2015-08-13 |
20150229381 | FINDING CHANNEL STATE INFORMATION WITH REDUCED CODEBOOK IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM - According to certain embodiments, a method performed by a transmitter to provide a precoder subset to a receiver in a multi-antenna wireless communication system is disclosed. The method includes determining the precoder subset comprising one or more precoder elements, each precoder element being a precoder element of a codebook, and the precoder subset including less than all precoder elements of the codebook. The method further includes providing the precoder subset to the receiver, wherein the codebook is defined for a plurality of ranks. For each rank, the codebook comprises a plurality of precoder elements corresponding to that rank. | 2015-08-13 |
20150229382 | SYSTEM OF SWITCHING MULTIANTENNA AND METHOD OF THE SAME - An antenna switching system according to an exemplary embodiment of the present invention includes a plurality of directional antenna which is mounted in a ship to receive a wireless signal; an antenna switch which selects one of the plurality of directional antennas; a modem which is connected to the directional antennas through the antenna switch to extract a strength of a received signal; and a switching determining unit which outputs an antenna selection signal to the antenna switch based on the strength of the received signal and GPS/DR information of a transmission side ship and its own ship. | 2015-08-13 |
20150229383 | COMMUNICATIONS METHOD AND APPARATUS - A communications apparatus and method are provided. The communications method for an apparatus capable of Carrier Aggregation (CA), wherein the apparatus includes a plurality of processing engines and antennas, includes the steps of determining whether the apparatus is configured in a single component carrier for a first group of the antennas; and activating a second group of the antennas if the apparatus is configured in the single component carrier. | 2015-08-13 |
20150229384 | COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM INCLUDING THE SAME, AND DUAL POLARIZATION SIGNAL TRANSMITTING AND RECEIVING METHOD OF COMMUNICATION SYSTEM - Disclosed is a communication system including a first communication apparatus and a second communication apparatus that communicate with each other through a dual polarization antenna, the system including: a first communication apparatus which calculates a co-polar ratio defined by a ratio of a first channel gain for a first polarization and a second channel gain for a second polarization; and a second communication apparatus which calculates a first rotation angle for the first polarization and a second rotation angle for the second polarization, respectively, by using the co-polar ratio transferred from the first communication apparatus, and transmits to the first communication apparatus a first rotational polarization generated by rotating the first polarization at the first rotation angle and a second rotational polarization generated by rotating the second polarization at the second rotation angle. | 2015-08-13 |
20150229385 | METHOD AND APPARATUS FOR BEAM SELECTION FOR A MULTIBEAM, MULTI-SATELLITE COMMUNICATIONS SYSTEM - An apparatus for satellite selection within a multi-satellite communication system, comprising an antenna, receiver, and transmitter, and a processing module configured to calculate a normalized distance metric for the plurality of user spot beams of a first and second satellite, select the user spot beam with the lowest normalized distance metric, and determine which of the at least first or second satellite is transmitting the selected user spot beam. Further, a method for increasing the aggregate capacity of a satellite communications network, comprising identifying high traffic regions within a coverage area of a first satellite, determining which user spot beams of the first satellite are available to each of the identified regions, determining a normalized distance metric for each user spot beam identified, and plotting a second beam pattern of a second satellite to produce at least one user spot beam with a lower normalized distance metric. | 2015-08-13 |
20150229386 | Narrowband Signal Transport Sub-System for Distributed Antenna System - Certain aspects involve narrowband signal transport sub-systems for a distributed antenna system (“DAS”). The narrowband signal transport sub-system includes one or more filter banks that are communicatively coupled to a port of a unit in the DAS. The input port can receive a broadband downlink signal that includes multiple carriers. Each filter bank can generate a set of narrowband downlink signals corresponding to a carrier from the broadband downlink signal. Each filter bank can include demodulators and filters. The demodulators can generate respective frequency-shifted downlink signals from the carrier. Each frequency-shifted downlink signal can have a respective frequency shift from the carrier's frequency that is based on a respective bandwidth for the carrier. Each filter can have a passband corresponding to the bandwidth of a narrowband channel associated with the carrier and can generate one of the narrowband downlink signals by filtering a respective one of the frequency-shifted downlink signals. | 2015-08-13 |
20150229387 | JOINT IP/OPTICAL LAYER RESTORATION AFTER A ROUTER FAILURE - A method and system for providing joint IP/Optical Layer restoration mechanisms for the IP over Optical Layer architecture, particularly for protecting against router failure within such architecture, includes any one of plural node elements participating in the detection and restoration of the joint IP/Optical Layer architecture upon the failure of a router in one of the nodes. The plural node elements may include, but are not limited to, one of plural routers and an optical cross-connect. | 2015-08-13 |
20150229388 | Time synchronization apparatus and method for automatically detecting the asymmetry of an optical fiber - A time synchronization apparatus and method for automatically detecting the asymmetry of an optical fiber. The apparatus comprises an OTDR asymmetry detecting module ( | 2015-08-13 |
20150229389 | APPARATUS AND METHOD FOR DETECTING OPTICAL LINE FAULT IN PASSIVE OPTICAL NETWORK - Disclosed herein is an apparatus and method for detecting an optical line fault in a Passive Optical Network (PON). The apparatus includes an optical distribution unit configured to, when a multiplexed signal of a downstream light signal and a monitoring light signal is input, distribute the multiplexed signal to an Optical Network Unit (ONU) of a first optical path and to a second optical path. An optical layer management unit is installed in the second optical path and is configured to set a time at which the monitoring light signal of the multiplexed signal provided to the second optical path is received to a starting time of monitoring light measurement, compare a monitoring light signal reflected and returned from the ONU with a signal pattern obtained when no fault occurs, and then determine whether a fault has occurred in a distribution network. | 2015-08-13 |
20150229390 | BIDIRECTIONAL PENTAPLEX SYSTEM AND METHOD - A bidirectional pentaplex system is connected to a machine room. The machine room provides a first optical signal, a second optical signal and a monitoring signal and transmits to the bidirectional pentaplex system. The bidirectional pentaplexer includes a first receiving unit, a second receiving unit, a first emitting unit, a second emitting unit, a filter, a transceiver, a grating, a plurality of reflecting units and a control circuit. The receiving units and the transceiver respectively receives the signals, then the control circuit controls the emitting units emitting the feedback signals and transmits the feedback signals back to the machine room. | 2015-08-13 |
20150229391 | METHOD OF PROVIDING DATA USING VISIBLE LIGHT COMMUNICATION (VLC) AND VLC SYSTEM THEREFOR - A method of providing data using visible light communication (VLC) and a VLC system therefor is provided, the method for easy utilization, in a user terminal, of information provided by a lighting apparatus based on a position at which the lighting apparatus is provided. | 2015-08-13 |