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)
06/2000
06/27/2000US6081566 Method and apparatus for interference rejection with different beams, polarizations, and phase references
06/27/2000US6081565 Amplitude based coarse automatic gain control circuit
06/27/2000US6081563 AFC circuit of digital demodulation device
06/27/2000US6081560 Production of a frequency control signal in an FSK receiver
06/27/2000US6081555 Methods and apparatus for implementing shell mapping techniques in the context of a PCM-based modem communications system
06/27/2000US6081550 Method of testing clock paths and network elements for carrying out the method
06/27/2000US6081502 Method and apparatus for reducing probability of clipping
06/27/2000US6081158 Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system
06/27/2000CA2180908C Qpsk demodulator for obtaining phase by arithmetic operation
06/27/2000CA2180242C Convolutional interleaver and deinterleaver
06/22/2000WO2000036801A1 Receiver and method for avoiding intersymbol interference in a high speed transmission system
06/22/2000WO2000036800A2 Transmitter linearization
06/22/2000WO2000036799A2 Transmitter linearization
06/22/2000WO2000036776A1 Transmitting method and transmitting device
06/22/2000WO2000036769A1 Method and communications assembly for transferring information by using a multi-carrier method
06/22/2000WO2000036768A1 Adaptive pre-emphasis technique
06/22/2000WO2000036756A1 Decoder and decoding method
06/22/2000WO2000036742A2 Phase modulating transmitter
06/22/2000WO2000011817A3 Method for transmitting information and suitable system therefor
06/22/2000CA2320892A1 Communication method and communication system
06/22/2000CA2286625A1 A power line communications system and method of operation thereof
06/21/2000EP1011235A2 Reception of multicarrier signals over power lines
06/21/2000EP1011234A1 Synchronisation of a RF receiver using chirp signals with a passive correlator
06/21/2000EP1011233A2 Carrier recovery and demodulator circuit for PSK signals
06/21/2000EP1011224A2 Data rate conversion
06/21/2000EP1011215A2 Optical communication system combining both baseband and passband signals
06/21/2000EP1011204A1 Three-port junction receiver
06/21/2000EP1011062A1 Method for coding and/or decoding alphanumerical information using an optical signal and reading device
06/21/2000EP1010307A1 Digital transmission using subband coding
06/21/2000EP1010306A1 Digital modulator for angle and/or amplitude modulation
06/21/2000EP1010288A1 A method for selecting a combination of modulation and channel coding schemes in a digital communication system
06/21/2000EP1010286A1 A method for selecting a link protocol for a transparent data service in a digital communications system
06/21/2000EP1010270A2 Method for parameter estimation and receiver
06/21/2000EP1010265A1 A method for demodulating information in a communication system that supports multiple modulation schemes
06/21/2000EP0873588B1 Method and device for modulating the frequency of a high-frequency signal
06/21/2000DE19959373A1 Positionsfernbezeichnungssystem Remote position designation system
06/21/2000DE19856898A1 Anordnung zum Übertragen von Signalen aus einer Einrichtung zum Überwachen des Reifendrucks an Fahrzeugrädern zu einem im Fahrzeug angeordneten Auswertegerät An arrangement for transmitting signals from a device for monitoring the tire pressure of vehicle wheels to an evaluation unit arranged in the vehicle
06/21/2000CN2384377Y Digital transmitter for low-speed data and high-frequency protection of high-voltage transmission line
06/21/2000CN1257629A Carrier recovery in DAB receivers
06/21/2000CN1257628A IQ modulator, and associated method
06/21/2000CN1257623A Multi-carrier radio system and radio transceiver implementation
06/21/2000CN1257382A Frame formatting for aerial interface
06/21/2000CN1257368A Extended interface unit for communication system
06/21/2000CN1257367A Signal carrier recovery method
06/21/2000CN1257356A Multi-modulation radio communication
06/20/2000US6078630 Phase-based receiver with multiple sampling frequencies
06/20/2000US6078629 Digital synthesizer
06/20/2000US6078628 Non-linear constant envelope modulator and transmit architecture
06/20/2000US6078626 Methods and systems for communicating information using separable modulation constellations
06/20/2000US6078625 Pragmatic decoder and method therefor
06/20/2000US6078624 Judging method and a precoding apparatus
06/20/2000US6078608 Spread spectrum communication apparatus, surface acoustic wave device, and surface acoustic wave part
06/20/2000US6078578 Communication apparatus
06/20/2000US6078412 Optical transmitter and optical transmission system using the same
06/20/2000US6078226 Integrated circuit implementation of a frequency shift keying oscillator
06/20/2000CA2157310C Method and apparatus for processing multicarrier signals
06/20/2000CA2136896C Method for receiving digital radio signals and a digital radio signals receiver
06/16/2000CA2291917A1 Optical communication system combining both baseband and passband signals
06/15/2000WO2000035237A1 Remote position designation system
06/15/2000WO2000035195A1 Data transmission in a television signal using quadrature amplitude modulation
06/15/2000WO2000035160A1 Qam modulator for radio communications
06/15/2000WO2000035159A1 Delay spread estimation for multipath fading channels
06/15/2000WO2000035140A1 Synchronization tracking method
06/15/2000WO2000035136A1 Multi punctured fec technique
06/15/2000WO2000035134A1 A system and method for modifying symbol duration for the efficient transmission of information in a time duplex noise enviroment
06/15/2000WO2000035133A1 Alternative configurations for an adsl system operating in a time duplex noise environment
06/15/2000WO2000035122A1 Demultiplexer for channel interleaving
06/15/2000WO2000034061A1 Arrangement for transmitting signals from a device monitoring tyre pressure on the wheels of a motor vehicle to an evaluation device arranged in a motor vehicle
06/15/2000WO1998024204A3 Method of measuring frequency difference, and receiver
06/15/2000DE19956470A1 Automatic channel searching (ACS) in digital radio receiver, such as TV receiver, with sequential channel tuning
06/15/2000DE19953184A1 Synchronization detection device for digital broadcast reception system uses correlation of decimated and delayed reception signal values with summation of differences and summation for detection of fast Fourier transformation window
06/15/2000CA2285761A1 A power line communications system and method of operation thereof
06/14/2000EP1009124A2 Wireless transmission method for antenna arrays using unitary space-time signals
06/14/2000EP0813768B1 Slope, drift and offset compensation in zero-if receivers
06/14/2000CN1256834A Equalising and decoding device for frequency-selective digital transmission channel
06/14/2000CN1256830A Clock recovery circuit and receiver having clock recovery circuit
06/14/2000CN1256827A Digital data receiver
06/14/2000CN1256826A Method for reducing interference, and synthesizer arrangement
06/14/2000CN1256577A Receiver and receive decoding method
06/14/2000CN1256425A Remote position appointing system
06/14/2000CN1053541C Satellite communication receiving apparatus
06/14/2000CN1053534C Method and apparatus for mitigating distortion effects in determination of signal usability
06/13/2000US6075980 Interference suppression in RF signals
06/13/2000US6075827 DQPSK mapping circuit
06/13/2000US6075826 Method and apparatus for obtaining initial carrier and symbol phase estimates for use in synchronizing transmitting data
06/13/2000US6075821 Method of configuring and dynamically adapting data and energy parameters in a multi-channel communications system
06/13/2000US6075816 Windowing technique for blind equalization
06/13/2000US6075812 High-data-rate wireless local-area network
06/13/2000US6075810 NRZ and biphase-L formatted hexaphase modulated GPS transmission method
06/13/2000US6075782 Free channel detecting method and apparatus
06/13/2000US6075410 Method and device for digitally demodulating a frequency modulated signal
06/13/2000US6075408 OQPSK phase and timing detection
06/13/2000US6074086 Synchronization of OFDM signals with improved windowing
06/10/2000CA2255478A1 Cable modem with uninterrupted power
06/08/2000WO2000033529A1 Demodulator
06/08/2000WO2000033527A1 Systems and methods for receiving a modulated signal containing encoded and unencoded bits using multi-pass demodulation
06/08/2000WO2000033526A1 Adaptive channel characterization using decoded symbols
06/08/2000WO2000033501A2 Adaptive modem and method for adaptive election of modulation mode
06/08/2000WO2000033496A1 Frequency synchronizing device for ofdm/cdma system
06/08/2000WO2000018056A9 Method and constructions for space-time codes for psk constellations for spatial diversity in multiple-element antenna systems
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