Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
03/2003
03/06/2003WO2002076052A9 Symmetric line coding
03/06/2003WO2002073813A3 Satellite communications apparatus
03/06/2003WO2002060142A3 Method for bit assignment and fine gain setting in a multi-carrier communications system
03/06/2003WO2002041504A3 Methods and apparatus for identifying asset location in communication networks
03/06/2003WO2002031985A3 Systems and methods for communicating spread spectrum signals using variable signal constellations
03/06/2003WO2002021681A3 Receiver circuit, especially for mobile radiotelephony
03/06/2003US20030045255 Apparatus for extracting a carrier frequency
03/06/2003US20030045253 Amplifying device
03/06/2003US20030045249 Feedback compensation detector for a direct conversion transmitter
03/06/2003US20030045247 Amplifying device
03/06/2003US20030043948 Variable rate modulator
03/06/2003US20030043947 GFSK receiver
03/06/2003US20030043945 Digital timing recovery method for communication receivers
03/06/2003US20030043941 Method for increased location receiver sensitivity
03/06/2003US20030043937 Semiconductor integrated circuit device and wireless communication system
03/06/2003US20030043936 Technique to simultanceously distribute clock signals and data on integrated circuits, interposers, and circuit boards
03/06/2003US20030043931 Ultrawide-band communication system and method
03/06/2003US20030043928 Coding scheme for a wireless communication system
03/06/2003US20030043927 Multicarrier demodulating method and apparatus, and multicarrier modulating metho and apparatus
03/06/2003US20030043925 Method and system for detecting, timing, and correcting impulse noise
03/06/2003US20030043901 Tone ordering circuit and tone ordering method for an xDSL
03/06/2003US20030043895 Oversampled clip-shaping
03/06/2003US20030043891 Radio receiver
03/06/2003US20030043775 Mobile communication terminal
03/06/2003US20030043768 Frequency offset correction circuit for WCDMA
03/06/2003US20030043733 Multi-carrier CDMA transmission system, transmitting apparatus and receiving apparatus used in this system, and multi-carrier CDMA transmission method
03/06/2003US20030043732 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel transmission
03/06/2003DE10136661C1 Transmitter for data communication system has 2 transmission units supplied with clock signals offset for reducing cross-talk between their transmission signals
03/06/2003CA2762915A1 A method and a system for transfering amr signaling frames on halfrate channels
03/06/2003CA2690114A1 Implementing a physical layer automatic repeat request for a subscriber unit
03/06/2003CA2651271A1 Base station implementing a physical layer automatic repeat request
03/06/2003CA2458440A1 Optical communications systems, devices, and methods
03/06/2003CA2457243A1 Method for physical layer automatic repeat request for a base station
03/06/2003CA2457239A1 Physical layer automatic repeat request (arq)
03/06/2003CA2457045A1 Monitoring upstream frequency band
03/05/2003EP1289218A2 Method and circuit for the mapping of data to subcarriers
03/05/2003EP1289217A1 Method and Device for communication using alternative current half-waves
03/05/2003EP1289216A1 Phase error correction apparatus in CDMA system using both a continuous and an intermittent pilot using different spreading codes
03/05/2003EP1289215A1 Optical MSK modulator
03/05/2003EP1289185A2 Multicarrier spread spectrum transmission
03/05/2003EP1289163A2 Frequency offset correction circuit for WCDMA
03/05/2003EP1289129A1 Amplifying device using predistortion
03/05/2003EP1289125A2 Double balance mixer circuit and orthogonal demodulation circuit using the same
03/05/2003EP1289123A1 Frequency Converter for GPS Receiver
03/05/2003EP1287654A2 Mitigation of radio frequency interference in multicarrier transmission
03/05/2003EP1287623A1 Digital waveform generator apparatus and method therefor
03/05/2003EP1177602A4 Method for correcting dc offsets in a receiver
03/05/2003EP0584248B1 Dual mode transmitter and receiver
03/05/2003CN1401177A Receiver
03/05/2003CN1401176A A frequency domain equalizer for terrestrial digital TV reception
03/05/2003CN1400830A Method for reducing multicarrier signal peak level ratio
03/05/2003CN1400759A Peak amplitude limiter and multicarrier amplifier
03/05/2003CN1400755A Orthogonal frequency division multiplexing receiver utilizing polar coordinate system and its method
03/05/2003CN1400738A Multistate modulation adaptive transmitter, receiver, method, program and signal
03/05/2003CN1400737A Phase compensation circuit for data phase-locked loop
03/05/2003CN1102818C Method for data transmission by impulse position modulation and amplitude modulation
03/05/2003CN1102815C 直接变换接收机 Direct conversion receiver
03/04/2003US6529925 Method for reducing the crest factor of a signal
03/04/2003US6529783 Process for estimating a parasite phase shift during reception of a multi-carrier signal and the corresponding receiver
03/04/2003US6529565 Circuit for detecting a center error to correct same
03/04/2003US6529562 Ask Modulator
03/04/2003US6529559 Reduced soft output information packet selection
03/04/2003US6529558 Coding and decoding a signal modified in accordance with the feedback states of an encoder
03/04/2003US6529549 System and method for an equalizer-based symbol timing loop
03/04/2003US6529472 Generation and decoding of multi-carrier signal
03/04/2003US6529303 Optical communications networks utilizing frequency division multiplexing
02/2003
02/27/2003WO2003017610A1 Demodulation apparatus and method in a communication system employing 16-ary qam
02/27/2003WO2003017609A1 Demodulation apparatus and method in a communication system employing 8-ary psk modulation
02/27/2003WO2003017608A1 Digital front-end for wireless communication system
02/27/2003WO2003017605A1 Digital phase locked loop
02/27/2003WO2003017554A2 Utilizing session initiation protocol for identifying user equipment resource reservation setup protocol capabilities
02/27/2003WO2003017528A1 Transmit diversity wireless communication
02/27/2003WO2003017516A1 System and method for high speed digital signaling
02/27/2003WO2002091696A3 Method and apparatus for digital data transmission and reception using synthetically generated frequency
02/27/2003WO2002089371A8 Power division multiplexing with incoherent signals and fixed powder hierarchy
02/27/2003WO2002082696A3 Communication system for underwater use
02/27/2003WO2002082695A3 Underwater communication system
02/27/2003WO2002078211A3 Method and apparatus for utilizing channel state information in a wireless communication system
02/27/2003WO2002047345A3 Method and apparatus for iterative parameter estimation
02/27/2003WO2002025804A3 Calibration of a quadrature receiver
02/27/2003US20030041292 Data recovery circuit for minimizing power consumption by non-integer times oversampling
02/27/2003US20030041195 Communication system and communication control apparatus and method
02/27/2003US20030040876 Estimating a plurality of tones in an input signal
02/27/2003US20030040875 System and method for estimating one or more tones in an input signal
02/27/2003US20030040289 Method for the generation of modulation by frequency division followed by frequency multiplication, and radiofrequency apparatus
02/27/2003US20030040284 Method and apparatus of retransmitted data combination
02/27/2003US20030039322 Modulation method and radio communication system
02/27/2003US20030039321 Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying(QPSK) or offset quaternary phase shift keying (OQPSK)
02/27/2003US20030039319 Monitoring upstream frequency band
02/27/2003US20030039318 System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers
02/27/2003US20030039317 Method and apparatus for constructing a sub-carrier map
02/27/2003US20030039315 Modulation device, demodulation device, communication system using the same, program and method for implementing modulation and demodulation
02/27/2003US20030039314 Method of initializing a communication system with different bandwidth receivers and transmitters
02/27/2003US20030039306 Low peak-to-average ratio quiescent mode architecture and signal design method for DMT modems
02/27/2003US20030039303 Receiver and method for CDMA despreading using rotated QPSK PN sequence
02/27/2003US20030039302 Equalisation method and device of the GMMSE type
02/27/2003US20030039264 Device and method for displaying code domain power
02/27/2003US20030039229 Method and apparatus implementing retransmission in a communication system providing H-ARQ
02/27/2003US20030039227 Method for physical layer automatic repeat request for a base station
02/27/2003US20030039226 Physical layer automatic repeat request (ARQ)
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