Patents for H04L 27 - Modulated-carrier systems (89,721) |
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10/09/2002 | EP1248395A2 Reference frequency spur cancellation in synthesized measurement receivers |
10/09/2002 | EP1002390A4 Method and system for rapid initial signal detection in a wireless communications system |
10/09/2002 | EP0836770B1 Automatic power control system for a code division multiple access (cdma) communications system |
10/09/2002 | CN1373957A Dual automatic gain control in QAM demodulator |
10/09/2002 | CN1373622A Base band processor integrating more modulation functions and method for implementing different modulations |
10/09/2002 | CN1373563A Mobie station receiver capable of using for single carrier and multiple carrier receiving operation |
10/09/2002 | CN1092441C Method and device of synchronizing digital signal receiver accurately |
10/09/2002 | CN1092440C Transmission device with echo eliminating function |
10/09/2002 | CN1092427C Vorsh QPSK sheet modulating eqipment for producing signal waveform |
10/08/2002 | US6463266 Radio frequency control for communications systems |
10/08/2002 | US6463107 Methods and apparatuses for synchronization and modulation type detection |
10/08/2002 | US6463106 Receiver with adaptive processing |
10/08/2002 | US6463104 Method of increasing coding levels |
10/08/2002 | US6463094 Point-to-point secure modem and method |
10/08/2002 | US6463093 Method and apparatus to reduce spurious and intermodulation products in wireless broadband multi-carrier digital transceiver equipment through static non-linearity correction of digital conversion components |
10/08/2002 | US6463043 Carrier phase recovery of multi-rate signals |
10/08/2002 | US6462626 Quadrature output oscillator device |
10/03/2002 | WO2002078281A1 Dual-mode tranmsitter |
10/03/2002 | WO2002078280A2 Method for frame and frequency synchronization of an ofdm signal and method for transmitting an ofdm signal |
10/03/2002 | WO2002078244A1 Receiver transparent q-mode |
10/03/2002 | WO2002078232A1 Data communication apparatus and method based on orthogonal frequency division multiple access |
10/03/2002 | WO2002078221A1 Propagation path variation estimating device and propagation path variation estimating method |
10/03/2002 | WO2002078211A2 Method and apparatus for utilizing channel state information in a wireless communication system |
10/03/2002 | WO2002078208A2 Corrector for non-monotonic characteristics of a satellite transmission channel |
10/03/2002 | WO2002078206A2 Bi-directional communication system with echo cancellation |
10/03/2002 | WO2002078200A2 Transceiver |
10/03/2002 | WO2002078170A1 System for controlling a class d amplifier |
10/03/2002 | WO2002060107A3 Quadrature modulator and demodulator |
10/03/2002 | WO2002023850A3 Multicarrier receiver |
10/03/2002 | US20020142739 Multi-channel peak power smoothing |
10/03/2002 | US20020142732 Transceiver capable of adaptively selecting a modulation method based on the transmission power and channel condition |
10/03/2002 | US20020141522 Method and apparatus for processing digitally sampled signals at a resolution finer than that of a sampling clock |
10/03/2002 | US20020141510 Method of and apparatus for performing modulation |
10/03/2002 | US20020141509 Intermodulation distortion identification and quantization circuit for a linear amplifier system |
10/03/2002 | US20020141508 Space-time trellis code for orthogonal frequency division multiplexing (OFDM) |
10/03/2002 | US20020141505 Method and apparatus in a communication system |
10/03/2002 | US20020141504 Receiver |
10/03/2002 | US20020141492 Line driver and method of operating the same |
10/03/2002 | US20020141487 Signal detection using a CDMA receiver |
10/03/2002 | US20020141478 Apparatus for initial power control for spread-spectrum communications |
10/03/2002 | US20020141440 System and method for improved data transmission speed by fixing the lower corner frequency at a frequency above voice band in a symmetric DSL transmission system |
10/03/2002 | US20020141355 Wireless access system and associated method using multiple modulation formats in TDD frames according to subscriber service type |
10/03/2002 | US20020140601 Receiver |
10/03/2002 | US20020140514 Modulator-demodulator |
10/03/2002 | CA2439804A1 Receiver transparent q-mode |
10/02/2002 | EP1246423A2 Adaptation of frequency of occurence of transmission of a reference signal based on the channel quality in an OFDM system |
10/02/2002 | EP1246422A1 Equaliser for multicarrier system |
10/02/2002 | EP1246421A1 Receiver of frequency modulated signals with digital demodulator |
10/02/2002 | EP1246419A1 Method and apparatus for calculating bit log-likelihood ratios for qam signals |
10/02/2002 | EP1246386A1 Data communication apparatus and method based on orthogonal frequency division multiple access |
10/02/2002 | EP1245109A1 A method and an arrangement for securing an adsl connection |
10/02/2002 | EP1245104A1 Correction of a sampling frequency offset in an orthogonal frequency division multiplexing system by sidelobe analysis of pilot subcarriers |
10/02/2002 | EP1245103A1 Offset correction in a spread spectrum communication system |
10/02/2002 | EP1245102A1 Method and apparatus for rotating the phase of a complex psk signal |
10/02/2002 | EP1245101A1 Method and apparatus for buffering data samples in a software based adsl modem |
10/02/2002 | EP1245088A1 Data transceiver with filtering and precoding |
10/02/2002 | EP1245084A1 Method and apparatus for rf common-mode noise rejection in a dsl receiver |
10/02/2002 | EP1244979A1 Transform engine for discrete multi-tone transceivers |
10/02/2002 | EP0876179B1 Adaptive, performance-optimizing communication system for communicating with an implanted medical device |
10/02/2002 | CN1372745A Demodulator which uses a delay detector |
10/02/2002 | CN1372744A Synchronization and detection of modulation type |
10/02/2002 | CN1372743A Method and apparatus for performing DC-offset compensation in a radio receiver |
10/02/2002 | CN1372728A Communication terminal apparatus and demodulation method |
10/02/2002 | CN1372725A Reception method and receiver array for a duplex transmission system |
10/02/2002 | CN1372406A Transmitting circuit |
10/01/2002 | US6459888 Method of estimating carrier frequency in a digital mobile communications system through multiple hypotheses performed on the received signal |
10/01/2002 | US6459883 Generic finger architecture for spread spectrum applications |
10/01/2002 | US6459796 AM stereo receiver with reduced distortion |
10/01/2002 | US6459745 Frequency/timing recovery circuit for orthogonal frequency division multiplexed signals |
10/01/2002 | US6459744 Multi-carrier symbol synchronization |
10/01/2002 | US6459743 Digital reception with radio frequency sampling |
10/01/2002 | US6459742 Digital modulation process and modulator implementing the process |
10/01/2002 | US6459741 Implementation of N-VSB training sequences in N-squared QAM receiver structures |
10/01/2002 | US6459739 Method and apparatus for RF common-mode noise rejection in a DSL receiver |
10/01/2002 | US6459727 Very high speed digital subscriber line receiver, and programmable gain amplifier and narrow-band noise remover thereof |
10/01/2002 | US6459679 Method and apparatus for synchronizing orthogonal frequency division multiplexing (OFDM) receiver |
10/01/2002 | US6459678 System and method for providing near optimal bit loading in a discrete multi-tone modulation system |
10/01/2002 | US6457229 Ignition device for internal combustion engine |
10/01/2002 | CA2224706C Automatic power control system for a code division multiple access (cdma) communications system |
10/01/2002 | CA2169078C Information transmission system and method of operation |
09/26/2002 | WO2002076056A2 Method for the frequency and time synchronization of an ofdm receiver |
09/26/2002 | WO2002076052A2 Symmetric line coding |
09/26/2002 | WO2002075961A1 Method and device for receiving synchronization signals |
09/26/2002 | WO2002075950A1 Interference rejection in a receiver |
09/26/2002 | WO2002058310A3 Fast initialization using seamless rate adaptation |
09/26/2002 | WO2002043258A3 Dc-offset correction circuit having a dc control loop and a dc blocking circuit |
09/26/2002 | WO2002037768A8 Communication system and communication control apparatus and method |
09/26/2002 | WO2000036742A3 Phase modulating transmitter |
09/26/2002 | US20020138807 Optimum UMTS modem |
09/26/2002 | US20020137533 System for coordination of TDD transmission bursts within and between cells in a wireless access system and method of operation |
09/26/2002 | US20020137488 Direct conversion receiver for performing phase correction upon change of the gain of low-noise amplifier |
09/26/2002 | US20020137482 Signal transmitting apparatus |
09/26/2002 | US20020137469 Radio communication apparatus and radio communication method |
09/26/2002 | US20020137467 Fast initialization using seamless rate adaptation |
09/26/2002 | US20020136394 Signal coupler using high voltage and low voltage filtering |
09/26/2002 | US20020136333 Segmented architecture for multiple sequence detection and identification with frequency offset compensation |
09/26/2002 | US20020136331 Method and apparatus for performing channel estimation with a limiting receiver |
09/26/2002 | US20020136329 Timing recovery using the pilot signal in high definition TV |
09/26/2002 | US20020136327 Method and system for utilizing space-time codes for block fading channels |
09/26/2002 | US20020136326 System for controlling a class D amplifier |