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| Application No. | Application Title | Issue Date |
| 20120045009 | TRANSMISSION DEVICE FOR GENERATING AN ANALOG MODULATED PULSE TRAIN AND FOR TRANSMITTING THE SAME AND A RECEIVING DEVICE FOR RECEIVING A RESPECTIVE SIGNAL The present invention relates to a transmitting device and to a receiving device. In particular, it relates to a transmitting device for producing an analogue modulated pulse train and for emitting the same, comprising a pulse generator (1), with which a pulse tr... | 02/23/2012 |
| 20120014274 | BASE STATION, WIRELESS COMMUNICATION SYSTEM, METHOD FOR CONTROLLING BASE STATION, WIRELESS COMMUNICATION METHOD, CONTROL PROGRAM, AND MOBILE STATION [Problem] The number of the base stations that are activated uselessly cannot be sufficiently reduced even in a light traffic state. As a result, interference between adjacent cells and power consumption cannot be sufficiently reduced. [Mea... | 01/19/2012 |
| 20110305292 | NONLINEAR FILTER AND TRANSMISSION CIRCUIT A nonlinear filter includes: a determination unit that determines, based on I and Q signals inputted into the determination unit, whether or not to perform pulse insertion; a rotation detector that detects a rotation direction of the I and Q signals on an IQ plane with ... | 12/15/2011 |
| 20110293031 | METHOD AND APPARATUS FOR BIT AND POWER ALLOCATION, AND COMMUNICATION SYSTEM The present invention discloses a method and apparatus for bit and power allocation and a communication system. The method for bit and power allocation comprises: determining a set of candidate modulation modes for sub-channels; constructing an SNR lookup table accordin... | 12/01/2011 |
| 20110261896 | APPARATUS AND METHOD FOR CREST FACTOR REDUCTION ARCHITECTURE A device and a method for crest factor reduction reduces peak-to-average ratio (PAR) to increase power amplifier efficiency. A first hard clipping block performs hard clipping on an input signal when the amplitude of the input signal is greater than a first threshold. A... | 10/27/2011 |
| 20110243267 | MAGNETIC FIELD COMMUNICATION METHOD FOR MANAGING NODE WITH LOW POWER CONSUMPTION A magnetic field communication method is provided for managing node with low power consumption which enhances performance and efficiency of a magnetic field area network in the low frequency region. The magnetic field communication method for managing node with low powe... | 10/06/2011 |
| 20110182379 | NETWORK CODING METHOD AND SYSTEM THROUGH CONSIDERATION OF CHANNEL STATE DIFFERENCE OF RECEIVERS Disclosed is a network coding method and system for receivers having a different channel state that may demodulate and extract a single coded packet using a different demodulation scheme according to a channel state of each receiver. The disclosed network coding method ... | 07/28/2011 |
| 20110150110 | Tone Count Selection A tone selection module selects tones suitable for use in an orthogonal frequency division multiplexing (OFDM) data transmission device based on several constraints. These constraints include number of available tones, modulation type, and code rate. The OFDM device may... | 06/23/2011 |
| 20110142155 | QUADRATURE SIGNAL DECODING USING A DRIVER A system and method for decoding quadrature signals includes a quadrature signal generator, a quadrature signal decoder, a key matrix and a driver. The quadrature signal generator generates quadrature signals on rotation. The quadrature signal decoder is configured to c... | 06/16/2011 |
| 20110051836 | Methods and Apparatus for Reducing the Average-to-Minimum Magnitude Ratio of Communications Signals in Communications Transmitters A communications transmitter configured to reduce the average-to-minimum magnitude ratio (AMR) of a communications signal includes a symbol mapper, a pulse-shaping filter, an AMR reduction circuit, and a modulator. The symbol mapper operates to generate a sequence of sy... | 03/03/2011 |
| 20110044396 | COMMUNICATION SYSTEM, COMMUNICATION DEVICE, WIRED COMMUNICATION DEVICE, AND COMMUNICATION METHOD A communication system includes a wired communication device and a communication device that can communicate with a wireless communication device and the wired communication device. The communication device includes a clock output unit and a modulator. The wired communi... | 02/24/2011 |
| 20100272208 | IMBALANCE COMPENSATION FOR DIRECT CONVERSION COMMUNICATION SYSTEMS Most modern integrated circuit transceivers, especially wireless LAN, utilize a direct conversion radio architecture, which is highly advantageous from the perspectives of cost and flexibility, there exist several performance impairments, including gain and phase imbala... | 10/28/2010 |
| 20100067606 | METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING MBMS BASED ON HM The present invention relates to a communication field and particularly to a method and apparatus for transmitting/receiving multimedia broadcast/multicast data based on hierarchical modulation in order to solve the problem of low efficiency of conventional methods. The... | 03/18/2010 |
| 20100034313 | SYSTEM AND METHOD FOR ACCURATE DOWNLINK POWER CONTROL OF COMPOSITE QPSK MODULATED SIGNALS A method for controlling code power levels of individual codes of a composite quadrature phase shift keyed (QPSK) signal. The method may involve obtaining a sample of the composite QPSK signal; separating the individual codes from the composite QPSK signal; analyzing th... | 02/11/2010 |
| 20090310786 | Systems for Channel Coordination of Audio and Data Transmission in a Broadcast Band Systems for audio and data transmission in a broadcast band are disclosed. The system comprises a channel condition assessment module at the transmit side to identify an un-occupied or empty channel to transmit. The system also comprises a means to achieve automatic cha... | 12/17/2009 |
| 20090313528 | Method and System for Cooperative Communications with Minimal Coordination A method and system are provided in a wireless communications system comprising a plurality of nodes (users) working cooperatively. The system provides cooperative diversity by allowing nodes to actively share their antennas and other resources to obtain spatial diversi... | 12/17/2009 |
| 20090252252 | HIGHLY LINEAR EMBEDDED FILTERING PASSIVE MIXER A communication channel has a highly linear switched current mixer that incorporates passive filtering (e.g., low pass, notch) for improved transmitting (Tx) and receiving (Rx) with adding external filtering components. A high IIP2 (input referenced second or... | 10/08/2009 |
| 20090080562 | Wireless SATA/SAS Data Transfer System A wireless data transfer system. The system includes a first hard disk, a first hard disk interface, and a first transmitter. The first hard disk interface is configured to retrieve first read data from the first hard disk and to create a first bit serial signal from th... | 03/26/2009 |
| 20090074102 | Method and apparatus for wired signal transmission A method and apparatus for high quality signal transmission, which utilizes normal-mode current flow and produces an audio output signal with suppression of normal-mode voltage amplitude, comprising transmitting an audio input signal source though (1) a buffer amplifier... | 03/19/2009 |
| 20090074101 | Detection Performance in Communication Systems A method and system to generate decoded information from received symbols in communication receivers. A first embodiment is a method to detect digitally modulated symbols and generate decoded information. The method includes receiving digitally modulated symbols, demapp... | 03/19/2009 |
| 20080267313 | Dual Demodulation Mode AM Radio Apparatuses and methods for receiving an amplitude modulated signal in one of two modes depending on the quality of the received signal. In a first mode, the amplitude modulated signal is converted directly to a baseband signal. In a second mode, the amplitude modulated... | 10/30/2008 |
| 20080218764 | METHODS AND SYSTEMS FOR FIBER OPTIC GYROSCOPES VIBRATION ERROR SUPPRESSION Systems and methods for performing vibration error suppression in a fiber optic gyro sensor. An example system includes a light source, a sensing loop assembly, a photo detector, and a processing component. The light source generates a light signal that is then modulate... | 09/11/2008 |
| 20080175333 | METHOD AND SYSTEM FOR DIGITAL TO ANALOG CONVERSION FOR POWER AMPLIFIER DRIVER AMPLITUDE MODULATION Aspects of a method and system for digital to analog conversion for power amplifier driver amplitude modulation are presented. Various aspects of the system may include circuitry that enables oversampling, within a single integrated circuit device, of each of a pluralit... | 07/24/2008 |
| 20080056403 | METHOD AND APPARATUS FOR TIMING RECOVERY OF PAM SIGNALS A timing recovery method is presented which enables time recovery of multi-level PAM signals at baud rate. The method uses a fixed A/D clock, a digital interpolator to re-synchronize incoming samples; a timing phase detector; a loop filter and a numerically controlled o... | 03/06/2008 |
| 20080049864 | METHOD AND APPARATUS FOR SPECTRUM-PRESERVING AMPLITUDE COMPRESSION OF A MODULATED SIGNAL A method and associated apparatus for preserving frequency spectrum in a linear modulation scheme, by adding a compensation signal to a modulated signal, the compensation signal having the same spectrum as the modulated signal. In the present invention, peaks above a pr... | 02/28/2008 |
| 20080049848 | METHOD AND SYSTEM FOR REDUCING SIGNAL DISTORTION IN A CONTINUOUSLY VARIABLE SLOPE DELTA MODULATION SCHEME A rearview assembly includes a mounting structure for attaching to a vehicle. The mounting structure includes a housing that has a rearview element disposed inside for providing a driver of the vehicle with a view to the rear of the vehicle. The rearview assembly also i... | 02/28/2008 |
| 20070274415 | SINGLE AND MULTIPLE SINEWAVE MODULATION AND DEMODULATION TECHNIQUES EMPLOYING CARRIER-ZERO AND CARRIER-PEAK DATA-WORD START AND STOP A method for detecting encoded digital data from a substantially sinusoidal waveform, the encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a fir... | 11/29/2007 |
| 20070092021 | QUADRATURE MODULATOR AND VECTOR CORRECTION METHOD A quadrature modulator for generating a transmission signal includes an orthogonal signal generator configured to generate a first local signal and a second local signal orthogonal to the first local signal, a mix-adder configured to generate a first RF signal based on ... | 04/26/2007 |
| 20070011716 | Unified receiver for layered and hierarchical modulation systems A satellite receiver includes a down converter for providing a received signal and a demodulator having at least two demodulation modes for demodulating the received signal, wherein one demodulation mode is hierarchical demodulation and another demodulation mode is laye... | 01/11/2007 |
| 20060198468 | Single and multiple sinewave modulation and demodulation techniques employing carrier-zero and carrier-peak data-word start and stop A method for detecting encoded digital data from a substantially sinusoidal waveform, the encoded digital data having one of a first value and a second value at selected phase angles θn comprises generating the waveform having an amplitude Y defined by a fir... | 09/07/2006 |
| 20060023805 | ASK communication device An ASK communication device has a carrier signal generator which is connected to a bus line which outputs carrier signals. One of ECUs, which attempts to transmit data, attenuates carrier signals superimposed on the bus line with predetermined timing by use of a transmi... | 02/02/2006 |
| 20060002488 | Communication device capable of performing broadband radio communication A communication device includes a communication unit capable of performing radio communications in a broad band including a first band whose frequency is relatively higher and a second band whose frequency is relatively lower. The communication device further includes, ... | 01/05/2006 |
| 20050242926 | Method and system for contactless data transmission, and use of the method Method and system for contactless data transmission and the use of the method, the method including the step of transmitting a signal, wherein the signal in an unmodulated form is at a first signal level and in a modulated form is at a second signal level whose magnitud... | 11/03/2005 |
| 20050163247 | Isolation barrier for interfacing a line side device to a system side device According to one embodiment, an isolation barrier comprises a transformer and a controlled impedance module. The system side device generates an amplitude modulated clock signal when the system side device is in a transmit mode, and generates an unmodulated clock signal... | 07/28/2005 |
| 20050074073 | Direct digital amplitude modulator Various embodiments of a direct digital amplitude modulator (DDAM) for modulating radio frequency (RF) or intermediate frequency (IF) or baseband signal with the invented interpolation technique are disclosed. The interpolation technique greatly reduces the amplitudes o... | 04/07/2005 |
| 20050041752 | Pulse-shaped holographic communications apparatus and methods Improved apparatus and methods for utilizing holographic waveforms for a variety of purposes including communication, ranging, and detection. In one exemplary embodiment, the holographic waveforms are transmitted over an RF bearer medium to provide, inter alia, highly c... | 02/24/2005 |
