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)
08/2003
08/21/2003US20030156594 Slot structure for radio communications system
08/21/2003US20030156592 Carrier based backwards compatible data neworking transmitter, receiver, and singal format
08/21/2003US20030156539 Method and device with improved channel equalization for mobile radio communications
08/21/2003US20030156534 Communication system using OFDM
08/21/2003US20030156052 Receiver circuit, particularly for mobile radio
08/21/2003US20030156014 Power-line carrier communication apparatus
08/21/2003CA2444287A1 Transmitting apparatus and transmission method
08/20/2003EP1337085A2 Reduction of interference between subcarriers in multicarrier communication systems
08/20/2003EP1337084A2 Home networking with backwards compatibility
08/20/2003EP1337069A2 Synchronisation in a spread-spectrum multicarrier system
08/20/2003EP1337066A1 Hybrid arq retransmission method with reduced buffer size requirement and receiver therefor
08/20/2003EP1336310A2 Methods and apparatus for identifying asset location in mobile communication networks
08/20/2003EP1336283A1 Coded modulation method, which takes tailbits and their coding into account
08/20/2003EP1336277A2 Methods and apparatus for identifying asset location in mobile communication networks
08/20/2003EP1336267A1 Communication system using ofdm
08/20/2003EP1336254A1 A rake receiver and a method of providing a frequency error estimate
08/20/2003EP1336246A2 Direct conversion receiver
08/20/2003EP1161803B1 Method of, and apparatus for, the transmission of a plurality of signals
08/20/2003EP1119902B1 Method and apparatus for generating a linearly modulated signal using polar modulation
08/20/2003CN1437821A Method and apparatus for buffering data samples in a software based ADSL MODEM
08/20/2003CN1437820A Demodulator for CPFSK-modulated signals by use of a linear approximation to the CPFSK signal
08/20/2003CN1437795A Signal peak reduction circuit for non-constant envelope modulation signals
08/20/2003CN1437793A Method and apparatus for improving the efficiency of power amplifiers, operating under a large peak-to-average ratio
08/20/2003CN1437742A Burst QAM Downhole telemetry system
08/20/2003CN1437364A Method for transmitting binary signal and apparatus for receiving the same signal
08/20/2003CN1437338A Channel estimation method for orthogonal frequency-division multiplexing communication system
08/20/2003CN1119067C Bit synchronization circuit and method thereof
08/20/2003CN1118999C Channel coding and inserting for transmission on multicarrier system
08/20/2003CN1118998C Method, apparatus and system for operating digital relevant conversion to inputted signal
08/20/2003CN1118997C 信号发送回路 Signaling circuit
08/20/2003CN1118996C Digital communication system
08/20/2003CN1118995C Four-phase frequency shift key-control receiver and method for determining signals thereof
08/20/2003CN1118994C Testing system for voice-band data transmission interface on exchanger
08/20/2003CN1118993C Method and equipment for tracking the characteristics of channel
08/20/2003CN1118979C Automatic frequency control circuit
08/20/2003CN1118976C Transmission apparatus capable of damping peak power level before singnal output
08/20/2003CN1118970C Parameter estimation method and receiver
08/20/2003CN1118965C Information channel estimating apparatus for digital telecommunication station
08/20/2003CN1118960C Method of implementing macrodiversity
08/20/2003CN1118957C Method and device for transmitting information through power-supply lead wire
08/20/2003CN1118954C Filter arrangement structure
08/20/2003CN1118949C Wireless communication equipment
08/20/2003CN1118948C Receiver, radio communication system, communication method and receiving method
08/19/2003US6608874 Method and apparatus for quadrature multi-pulse modulation of data for spectrally efficient communication
08/19/2003US6608873 Method and apparatus for detecting CPM-modulated information symbols
08/19/2003US6608870 Data frame for 8 MHZ channels
08/19/2003US6608869 Dual-carrier heterodyne for separating orthogonal components of complex amplitude-modulation signals
08/19/2003US6608868 Apparatus and method for digital wireless communications
08/19/2003US6608863 Coherent detection system for multicarrier modulation
08/19/2003US6608858 Multipath doppler adjusted frequency tracking loop
08/19/2003US6608843 Pilot signal transmission technique and digital communication system using same
08/19/2003US6608835 Communication system with multicarrier telephony transport
08/19/2003US6608834 System for encapsulating Ethernet frames over very high speed digital subscriber lines
08/19/2003US6608826 Continuously adjustable bandwidth discrete-time phase-locked loop
08/19/2003US6608669 Quadrature processed LIDAR system
08/19/2003US6608552 Power-line digital communication system
08/19/2003US6608532 Circuit configuration for producing a quadrature-amplitude-modulated transmission signal
08/19/2003US6608510 PLL circuit and wireless mobile station with that PLL circuit
08/14/2003WO2003067841A2 Multi-standard transmitter and method for a wireless communication system
08/14/2003WO2003067840A1 Radio information communication apparatus and method
08/14/2003WO2003067800A2 Radio frequency characterization of cable plant and corresponding calibration of communication equipment communicating via the cable plant
08/14/2003WO2003067793A2 Clock control and sampling rate conversion in the transmitter of a digital transceiver
08/14/2003WO2003067751A2 Digital phase locked loop
08/14/2003WO2003061233A3 Method and apparatus for coding along a sinusoidal waveform
08/14/2003WO2003055161A3 Method and apparatus for amplitude modulating data signals using a square wave signal
08/14/2003WO2003041353A3 Method ahd device for optimised xdsl data transmission
08/14/2003WO2003036894A3 Reduction of average-to-minimum power ratio in communications signals
08/14/2003WO2003026241A3 Method and device for data transmission in a multi-carrier system
08/14/2003WO2003021846A3 Communicating data using wideband communications
08/14/2003WO2002049307A9 Frame synchronization for ofdm
08/14/2003US20030154025 Method and apparatus for performing timing synchronization
08/14/2003US20030153285 Methods for determining the gains of different carriers, radio transmission units and modules for such units
08/14/2003US20030153276 Transport block set transmission using hybrid automatic repeat request
08/14/2003US20030152181 Delay locked loop synthesizer with multiple outputs and digital modulation
08/14/2003US20030152179 Method and system for providing a semi-data aided frequency estimator for OQPSK
08/14/2003US20030152178 Mobile communication system, channel synchronization establishing method, and mobile station
08/14/2003US20030152173 Diversity receiver with joint automatic gain control signal processing
08/14/2003US20030152168 Detection method for phase-modulated symbols with a correlator-bank
08/14/2003US20030152166 Methods and circuits for optimal equalization
08/14/2003US20030152164 FFT and FHT engine
08/14/2003US20030152157 Method and arrangement to synchronize a multi-carrier transmission system
08/14/2003US20030152156 Multicarrier receiver
08/14/2003US20030152155 Discrete multitone transmission and reception
08/14/2003US20030152053 Wireless local area network system
08/14/2003US20030152051 High data rate CDMA wireless communication system
08/14/2003US20030152050 Method of reducing inter-subcarrier interference in multicarrier communication systems and receiver using it
08/14/2003US20030152023 Orthogonal frequency division multiplexing system with differing control parameters corresponding to different data points in a single symbol
08/14/2003US20030152022 Orthogonal frequency division multiplexing system with superframe synchronization using correlation sequence
08/14/2003US20030152021 Post-fft scaling to reduce multiple effects
08/14/2003US20030152020 Method for the transmission of digital data by means of radio signals with orthogonal frequency division multiplexing(OFDM)
08/14/2003US20030151455 Circuit for detecting and correcting central level of FSK demodulation signal
08/14/2003CA2474505A1 Multi-standard transmitter and method for a wireless communication system
08/13/2003EP1335555A2 Data allocation for DMT transmission
08/13/2003EP1335554A2 Cancellation of reentry-signals relay stations for DVB-T networks
08/13/2003EP1335553A1 Symbol synchronisation in a multicarrier transmission system
08/13/2003EP1335552A1 Channel estimation in multicarrier systems
08/13/2003EP1335551A2 Reception of CPM spread-spectrum communications
08/13/2003EP1335550A2 Differential phase encoding apparatus
08/13/2003EP1335549A1 Method and device for transmission and reception of an anisochronous binary signal
08/13/2003EP1335548A1 Gaussian FSK multiresolution system employing unequal error protection
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