Patents for H04L 27 - Modulated-carrier systems (89,721) |
---|
07/03/2003 | US20030123383 OFDM multiple sub-channel communication system |
07/03/2003 | CA2468663A1 Method and base station for providing phase-shift transmit diversity |
07/02/2003 | EP1324624A1 Method and apparatuses of 8psk modulation |
07/02/2003 | EP1324559A1 Spectral Power Management for Constrained Transmissions Using Constellation Shaping |
07/02/2003 | EP1324558A1 Multiresolution broadcast transmitter and method using Gaussian trellis shaping to reduce average signal power and corresponding multi-stage decoder |
07/02/2003 | EP1324557A1 ADSL bit loading scheme with excess noise margin |
07/02/2003 | EP1324556A1 Method and apparatus for reducing multi-carrier signals ratio of peak power to average power |
07/02/2003 | EP1324531A1 Phase modulator and phase modulating method |
07/02/2003 | EP1324527A1 Interleaving apparatus and method for symbol mapping in an HSDPA mobile communication system |
07/02/2003 | EP1324507A1 Transmitter apparatus and communication system employing a dummy pulse before the start of communication |
07/02/2003 | EP1323271A1 System and method for fast code phase and carrier frequency acquisition in gps receiver |
07/02/2003 | EP1323270A1 Adaptive filtering and dc offset removal for communications systems |
07/02/2003 | EP1323256A2 Multi strata system |
07/02/2003 | EP1323252A1 System and method for huffman shaping in a data communication system |
07/02/2003 | EP1323236A2 Method and apparatus for automatic frequency control in a cdma receiver |
07/02/2003 | EP1147623B1 A method for modifying the channel impulse response in tdma systems |
07/02/2003 | CN1428035A Method and system for blind detection of modulation type |
07/02/2003 | CN1428031A Communication structure with channels configured responsive to reception quality |
07/02/2003 | CN1427596A Method of OSDM radio communication system frequency deviation compensation and its circuit device |
07/02/2003 | CN1427595A OFDM communication system equalizer phase compensating method |
07/02/2003 | CN1427594A OFDM radio communication system frequency deviation detection method and its circuit device |
07/02/2003 | CN1427564A Synchronous signal detecting circuit device and detecting method of said device detecting synchronous signal |
07/02/2003 | CN1113545C Wireless receiver |
07/02/2003 | CN1113536C Method for forming video data |
07/02/2003 | CN1113516C Transmission method and radio system |
07/02/2003 | CN1113515C Method and device for modulation and demodulation |
07/02/2003 | CN1113514C Line card with modem interface |
07/02/2003 | CN1113499C Receiver decoder circuitry, and associated method, for decoding channel encoded signal |
07/02/2003 | CN1113477C Receiver and transceiver |
07/02/2003 | CN1113453C Linear RF power amplifier with optically activated switches |
07/02/2003 | CA2746401A1 Star pattern partial encryption |
07/01/2003 | US6587695 Method and apparatus for distinguishing a compact control channel from a classic control channel |
07/01/2003 | US6587531 Clock recovery circuit and a receiver having a clock recovery circuit |
07/01/2003 | US6587526 Apparatus and method for timing synchronization in OFDM-based wireless systems |
07/01/2003 | US6587523 Radio signal receiving apparatus and a method of radio signal reception |
07/01/2003 | US6587522 Channel estimation device for digital telecommunications stations |
07/01/2003 | US6587521 Signal estimator and program stored memory medium |
07/01/2003 | US6587518 Synchronous BPSK decoder |
07/01/2003 | US6587517 Multi-stage receiver |
07/01/2003 | US6587516 Subscriber unit producing a modulated digital frequency |
07/01/2003 | US6587513 Predistorter |
07/01/2003 | US6587512 Apparatus and methods for combined precoding and shaping generating an uncorrelated sequence of samples |
07/01/2003 | US6587503 Information processing apparatus and method |
07/01/2003 | US6587502 System and method for profile selection during fast retrain of a wideband modem |
07/01/2003 | US6587499 Base station which uses pre-rotation before transmission |
07/01/2003 | US6587452 High performance signal structure with multiple modulation formats |
07/01/2003 | US6587428 Information record disc and information recording apparatus |
07/01/2003 | US6587157 Storing digital video broadcast signals |
07/01/2003 | US6586988 Demodulating circuits for contactless integrated circuit cards and systems |
06/26/2003 | WO2003053021A1 Method and system for generating higher order modulations with qpsk modulator |
06/26/2003 | WO2003053020A1 Method and apparatus for multi-carrier transmission |
06/26/2003 | WO2003052991A2 A method and system of operating a coded ofdm communication system |
06/26/2003 | WO2003052990A1 Method and apparatus for pulse overlap pre-compensation in digitally modulated signals |
06/26/2003 | WO2003052983A1 Multi-carrier variable mode method and system |
06/26/2003 | WO2003052430A1 Method and device for graphically representing the i and/or q components of digitally modulated high frequency signals |
06/26/2003 | WO2002057924A3 Serial link architecture |
06/26/2003 | US20030120995 Interleaving apparatus and method for symbol mapping in an HSDPA mobile communication system |
06/26/2003 | US20030120990 Method for modifying a bit sequence in an ARQ retransmission, receiver and transmitter therefor |
06/26/2003 | US20030119462 Apparatus for linear transmitter with improved loop gain stabilization |
06/26/2003 | US20030118131 Joint demodulation using a viterbi equalizer having an adaptive total number of states |
06/26/2003 | US20030118129 Receiver of frequency-modulated signals with digital demodulator |
06/26/2003 | US20030118128 Method, system, device and computer program product for a demodulator with communications link adaptation |
06/26/2003 | US20030118126 Apparatus and method for compensating error for analog quadrature modulator (AQM) |
06/26/2003 | US20030118123 Methods and apparatus for transmitting and receiving data over a communications network in the presence of noise |
06/26/2003 | US20030118121 Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator |
06/26/2003 | US20030118120 Receiver with offset compensation |
06/26/2003 | US20030118094 Mixed time and frequency domains equalization algorithm for ADSL systems |
06/26/2003 | US20030118093 Device and method for viterbi equalization with metric increments calculated in advance |
06/26/2003 | US20030118092 Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel |
06/26/2003 | US20030118090 Variable block rate ADSL |
06/26/2003 | US20030118089 Method and system for DSL power saving |
06/26/2003 | US20030118088 Systems and methods for a multi-carrier transceiver with radio frequency interference reduction |
06/26/2003 | US20030117943 Signal transmission system for transmitting a signal with a guard interval and a demodulation method thereof |
06/26/2003 | US20030117940 Method and apparatus for timing recovery in an OFDM system |
06/26/2003 | US20030117896 Acoustic communication device and acoustic signal communication method |
06/26/2003 | US20030117647 Method and apparatus for data transmission |
06/26/2003 | US20030117200 Active quadrature signal generator using load having low-pass and high-pass filter characteristics |
06/26/2003 | CA2469913A1 Method and apparatus for multi-carrier transmission |
06/26/2003 | CA2469791A1 Method and apparatus for pulse overlap pre-compensation in digitally modulated signals |
06/25/2003 | EP1322101A2 Near-end crosstalk noise minimization and power reduction for digital subscriber loops |
06/25/2003 | EP1322044A1 Method and apparatus for detecting spread spectrum signal spread code synchronization |
06/25/2003 | EP1320970A2 System and method for layer 2 frame delineation recovery |
06/25/2003 | EP1320969A1 Modulation method for a multi-carrier process with pre-emphasis |
06/25/2003 | EP1320968A2 Automatic frequency correction for mobile radio receivers |
06/25/2003 | EP1320967A1 Method for transmitting a high-frequency binary data stream via an electrically isolated communications path |
06/25/2003 | EP1320934A2 Frequency translator using a cordic phase rotator |
06/25/2003 | EP0796532B1 Ocdma code tracking system having phantom carrier signal |
06/25/2003 | CN1426641A Hybrid ARQ method with single constellation rearrangement |
06/25/2003 | CN1426640A Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system |
06/25/2003 | CN1426167A Control device and control method for transmission output of sudden transmitter |
06/25/2003 | CN1426164A Ultra wide band narrow pulse generator of subnanosecond duration |
06/25/2003 | CN1112794C Method and device for approximate frequency synchronization |
06/25/2003 | CN1112793C Data comparison AGC system for VSB receiver |
06/25/2003 | CN1112781C Multi-carrier-wave transmission interleaving apparatus and method thereof |
06/25/2003 | CN1112771C BS digital broadcasting receiver |
06/24/2003 | US6584196 Electronic inductor with transmit signal telephone line driver |
06/24/2003 | US6584164 Method for forming a training sequence |
06/24/2003 | US6584160 System and method for reducing the effects of clipping in a DMT transceiver |
06/24/2003 | US6584140 Spectrum efficient fast frequency-hopped modem with coherent demodulation |
06/24/2003 | US6584092 Apparatus and method for OFDM communication |