Patents for H04L 27 - Modulated-carrier systems (89,721)
08/2002
08/08/2002WO2002061938A1 Distortion compensation apparatus
08/08/2002WO2002015502A3 Adaptive linear equalisation for walsh-modulated
08/08/2002WO2002013370A3 Frequency translator using a cordic phase rotator
08/08/2002US20020108089 Use of trellis coded modulation to mitigate fading channels in data transmission over air link wireless channels of GPRS/EDGE systems
08/08/2002US20020108085 System and method for performing joint trellis coded modulation (TCM) with multi-circular constellations on data being transmitted over nonlinear channels
08/08/2002US20020108083 Communication apparatus and communication method
08/08/2002US20020108081 Performance evaluation of multicarrier channels with forward error correction and automatic retransmission request
08/08/2002US20020108001 Multi-modem implementation with host based and digital signal processor based modems
08/08/2002US20020107979 Computer data transmission over a telecommunictions network
08/08/2002US20020107382 Nnucleotide sequences which code enzyme inhibitor for use in human therapeutics and diagnostics, cosmetics, nutrients and animal feeds
08/08/2002US20020107030 Method, apparatus and system for frequency stabilization using cellular signal bursts
08/08/2002US20020106992 Synchroniser
08/08/2002US20020106989 Radio communication apparatus and radio communication method
08/08/2002US20020106060 Communication system with multicarrier telephony transport
08/08/2002US20020106043 Clock synchronizing circuit
08/08/2002US20020106036 Bs digital broadcasting receiving device and bs digital broadcasting reciving method
08/08/2002US20020106032 Devices for sending and receiving a modulated signal
08/08/2002US20020106010 Rate adaptation and parameter optimization for multi-band single carrier transmission
08/08/2002US20020106007 Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system
08/08/2002US20020105950 Computer data transmission over a telecommunications network
08/08/2002US20020105947 Multi-carrier communication apparatus and multi-carrier communication method
08/08/2002US20020105928 Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
08/08/2002US20020105903 Reception synchronization apparatus and demodulating apparatus using the same
08/08/2002US20020105902 Method for generating orthogonal spread codes in mobile communication system
08/08/2002US20020105901 System and method of signal wave shaping for spectrum control of an OFDM signal
08/08/2002US20020105632 Quadrature processed lidar system
08/08/2002US20020105599 VSB demodulating device and method in digital TV receiver
08/08/2002US20020105378 Linearisation and modulation device
08/08/2002CA2437112A1 Maximum likelihood synchronisation for a communications system using a pilot symbol
08/07/2002EP1229683A2 Upstream synchronisation in a multi-point to point communications system
08/07/2002EP1229678A1 Base station apparatus, communication terminal apparatus and communication method
08/07/2002EP1229344A1 Method, apparatus and system for frequency stabilisation using cellular signal bursts
08/07/2002EP1228617A1 Method and test device for determining and correcting an offset in direct voltage on a modulator
08/07/2002EP1228615A2 Par reduction by carriers phase randomization in multicarrier communications
08/07/2002EP1228614A1 Method and apparatus for communication using pulse decoding
08/07/2002EP1228611A1 Radio receiver with two stages of dc offset correction, synchronisation and channel estimation
08/07/2002EP1228590A1 Method and apparatus for transmitting signals in a communication system
08/07/2002EP0721705B1 Arrangement in a multi-user system
08/07/2002EP0720793B1 Digital radio link system and radio link terminal
08/07/2002CN1363169A Phase noise and additive noise estimation in a QAM demodulator
08/07/2002CN1363168A Communication system with predistortion
08/07/2002CN1363163A Peer-to-peer communication system with receiver adjustment using stored transmission parameters
08/07/2002CN1088962C Method for the common transmission of digital and analogue modulated radio broadcasting and/or television broadcasting signals
08/07/2002CN1088952C Maximum likelihood decoding and synchronous detecting method
08/07/2002CN1088951C Demodulating method and device for phase-shift key controlled signal
08/06/2002US6430724 Soft selection combining based on successive erasures of frequency band components in a communication system
08/06/2002US6430401 Technique for effectively communicating multiple digital representations of a signal
08/06/2002US6430243 Symbol sign directed phase detector
08/06/2002US6430234 Method and apparatus for performing phase detection and timing recovery for a vestigial sideband receiver
08/06/2002US6430232 Phase constellation modulator
08/06/2002US6430228 Digital QAM modulator using post filtering carrier recombination
08/06/2002US6430227 FM in-band-on-channel digital audio broadcasting method and system
08/06/2002US6430219 Method of and apparatus for performing line characterization in a subscriber line communication system
08/06/2002US6430214 Fading resistant multi-level QAM receiver
08/06/2002US6430212 Spread-spectrum GMSK/M-ary radio
08/06/2002US6430210 Receiver for detecting an amplitude modulated signal insinuated on an GHM signal
08/06/2002US6430208 Ultrawide-band communication system and method
08/06/2002US6430149 Processing circuits for complex operation
08/06/2002US6430148 Multidirectional communication systems
08/06/2002US6429828 VHF/UHF self-tuning planar antenna system
08/06/2002US6429798 Combined transmit filter and D-to-A converter
08/06/2002CA2267425C Cosine segment communications system
08/05/2002CA2337737A1 Improved method for adapting the receiver demodulation structure according to the transmitter ifft size, in dmt-based adsl modems
08/05/2002CA2333829A1 Method for adapting the receiver demodulation structure according to the transmitter ifft size, in dmt-based adsl modems
08/01/2002WO2002060146A1 Method of implementing modulation and modulator
08/01/2002WO2002060145A2 Method for adaptive bit assignment and fine gain setting in a multi-carrier communications system
08/01/2002WO2002060144A2 Calibrating the local oscillation frequency of a cdma receiver
08/01/2002WO2002060143A2 Joint reduction of noise power and of the length of the channel impulse response
08/01/2002WO2002060142A2 Method for bit assignment and fine gain setting in a multi-carrier communications system
08/01/2002WO2002060141A1 Layered transmission reception device and transmission device
08/01/2002WO2002060140A1 Method for transmitting a biorthogonal frequency multiplex signal/synchronous modulation (bfdm/sm) signal
08/01/2002WO2002060115A1 Interpolation resampler
08/01/2002WO2002060114A2 Filter for multicarrier signals
08/01/2002WO2002060107A2 Quadrature modulator and demodulator
08/01/2002WO2002033842A3 Transformerless interface for modem
08/01/2002WO2002027954A8 Subharmonic mixer circuit and method
08/01/2002WO2002013397A3 Constrained-envelope transmitter and method therefor
08/01/2002WO2002011383A3 Systems and methods for transporting a network timing reference in an adsl system
08/01/2002WO2002009270A3 System and apparatus for a direct conversion receiver and transmitter
08/01/2002WO2002003556A3 Method and apparatus for channel gain and channel delay estimation in a multi-carrier cdma system
08/01/2002US20020102940 Adaptive subcarrier loading
08/01/2002US20020102937 Communication system with multicarrier telephony transport
08/01/2002US20020101942 Signal separation
08/01/2002US20020101941 Quadrature error reduction for QAM modulated up or down conversion
08/01/2002US20020101940 Demodulator and radio communication system using the same
08/01/2002US20020101939 Fixed-point DSP implementation of FM demodulation and decoding
08/01/2002US20020101936 Systems and methods for the reduction of peak to average signal levels of multi-bearer single-carrier and multi-carrier waveforms
08/01/2002US20020101935 Systems and methods for the dynamic range compression of multi-bearer single-carrier and multi-carrier waveforms
08/01/2002US20020101916 Universal modulator/demodulator
08/01/2002US20020101915 Method and system for turbo encoding in ADSL
08/01/2002US20020101910 CDMA multi-user detection with a real symbol constellation
08/01/2002US20020101883 Method for reducing interference from initializing network devices in a data-over-cable system
08/01/2002US20020101840 Timing drift compensation in wireless packet-based systems
08/01/2002US20020101545 Wireless transmission system
08/01/2002DE10148515A1 Frequenzspannungswandler Frequency voltage converter
08/01/2002DE10135924A1 Amplitudendetektierverfahren und Schaltung Amplitudendetektierverfahren and circuit
08/01/2002DE10101911A1 Signalverarbeitung eines amplituden- und/oder phasenmodulierten Hochfrequenzsignals Signal processing of an amplitude and / or phase-modulated high-frequency signal
08/01/2002CA2435720A1 Quadrature modulator and demodulator
08/01/2002CA2434096A1 Efficient multicarrier filter
07/2002
07/31/2002EP1227597A2 Noise cancelling method and apparatus