Patents for H04L 27 - Modulated-carrier systems (89,721) |
---|
09/06/2000 | EP1033853A2 OFDM transmission/reception apparatus with improved protection of control data |
09/06/2000 | EP1033852A1 DC offset correction for direct-conversion receiver |
09/06/2000 | EP1033839A2 Sync signal detection method and radio communication system |
09/06/2000 | EP1033027A2 Communications methods and apparatus |
09/06/2000 | EP1033004A1 Method and constructions for space-time codes for psk constellations for spatial diversity in multiple-element antenna systems |
09/06/2000 | EP1032994A1 Method and device for change of reception frequency in a digital audio broadcasting system receiver |
09/06/2000 | EP1032975A1 Method and apparatus for estimating a frequency offset |
09/06/2000 | CN1265793A Method and apparatus for transmitting signals in communication system |
09/06/2000 | CN1265758A Circuit for manipulation-protected reception of ook-modulated signal |
09/06/2000 | CN1265556A Communication device capable of effectively controlling power supply, method and media of controlling power supply |
09/06/2000 | CN1265547A Improved phase estimation for use in reinsertion of phase-modulated signal carrier such as quadrature-amplitude modulated signal carrier |
09/06/2000 | CN1265544A Method and system for compensating channel dustortion using lagrange's polynomial interopolation method |
09/06/2000 | CN1265543A Demodulator, modulator circuit and demodulating, modulating method |
09/06/2000 | CN1265542A Orthogonal frequency division multiplex ransmitting/receiving system |
09/05/2000 | US6115473 Receiving apparatus for digital broadcasting |
09/05/2000 | US6115466 Subscriber line system having a dual-mode filter for voice communications over a telephone line |
09/05/2000 | US6115435 Soft decision method and receiver |
09/05/2000 | US6115433 Adaptively-equalized digital receiver with carrier tracking |
09/05/2000 | US6115432 High-frequency signal receiving apparatus |
09/05/2000 | US6115431 Phase detecting method and phase tracking loop circuit for a digital vestigial sideband modulation communication device |
09/05/2000 | US6115429 Data receiving method for receiving data through predetermined clear zones of a powerline |
09/05/2000 | US6115428 Apparatus for and method of generating π-/N-shifted N-differential encoded phase shift keying modulation signals |
09/05/2000 | US6115427 Method and apparatus for data transmission using multiple transmit antennas |
09/05/2000 | US6115426 Adaptive communication apparatus |
09/05/2000 | US6115419 Adaptive digital beamforming receiver with π/2 phase shift to improve signal reception |
09/05/2000 | US6115417 Signal quality measuring scheme |
09/05/2000 | US6115415 Mapper for high data rate signalling |
09/05/2000 | US6115354 Multiple carrier transmission in common-wave networks |
09/05/2000 | US6114921 Double-balanced modulator and quadri-phase shift keying device |
09/01/2000 | CA2298325A1 Iterative differential detector |
08/31/2000 | WO2000051311A1 Communication device and method of eliminating intereference in this communication device |
08/31/2000 | WO2000051304A1 Express bit swapping in a multicarrier transmission system |
08/31/2000 | WO2000051303A1 Apparatus and method of tone allocation in digital subscriber line systems |
08/31/2000 | WO2000051301A1 Multicarrier signal receiver with correction of equalization faults induced by the trf window displacements |
08/31/2000 | WO2000051275A1 Digital broadcasting apparatus |
08/31/2000 | WO2000051255A1 Universal dsl link interface between a dsl digital controller and a dsl codec |
08/31/2000 | WO2000051254A1 Radio receiver and method for preloading an average dc-offset into a channel filter |
08/31/2000 | WO2000051252A1 Radio terminal device |
08/31/2000 | WO2000051236A2 Method and apparatus for frequency synchronisation in a digital radio communications system |
08/31/2000 | CA2359086A1 Apparatus and method of tone allocation in digital subscriber line systems |
08/31/2000 | CA2330078A1 Communication device and interference rejection method therein |
08/30/2000 | EP1032174A2 OFDM-OQAM multicarrier transmission systems |
08/30/2000 | EP1032173A2 Frequency offset correction in multicarrier receivers |
08/30/2000 | EP1032172A2 Decision directed phase locked loop (DD-PLL) for use with short block codes in digital communication systems |
08/30/2000 | EP1032171A2 Frequency synchronisation for digital signals |
08/30/2000 | EP1032169A1 System for estimating the complex gain of a transmission channel |
08/30/2000 | EP1032168A2 Channel estimation, using interpolation based on Lagrange polynomials |
08/30/2000 | EP1032153A2 Encoding of data for transmission over channels with impulsive noise |
08/30/2000 | EP1032150A2 A method for high speed modulation and error control coding |
08/30/2000 | EP1031849A1 Device for receiving signals from satellite radio-navigation systems |
08/30/2000 | EP1031848A1 Method for increasing interference immunity when receiving signals from satellite navigation systems and device for realising the same |
08/30/2000 | EP1031219A1 Qam modulation using direct digital synthesis and upconversion |
08/30/2000 | EP1031218A1 Time-varying trellis coded psk |
08/30/2000 | EP1031217A1 Methods and apparatus for optimizing shell mapping techniques using an approximated power cost function |
08/30/2000 | EP1031199A1 Improvement in, or relating to, subscriber line transmission systems |
08/30/2000 | EP1031188A1 A field programmable radio frequency communications equipment including a configurable if circuit and method therefor |
08/30/2000 | EP1031184A1 Front end interface circuit and method of tuning the same |
08/30/2000 | CN1265249A Circuit for detecting phase of received signal |
08/30/2000 | CN1265248A Signal point arrangement dipersion calculation circuit |
08/30/2000 | CN1265237A Method and appts. for converting wide band if signal to complex (quadrature) baseband signal |
08/30/2000 | CN1264968A Frequency deviation corrector and frequency deviation correcting method |
08/29/2000 | US6112180 Data transmission and reception methods and data transmission and reception apparatus |
08/29/2000 | US6112071 Quadrature-free RF receiver for directly receiving angle modulated signal |
08/29/2000 | US6111923 System and method for calculating a state transition metric in a viterbi equalizer |
08/29/2000 | US6111922 Circuit for detecting word sequences in a modem |
08/29/2000 | US6111919 Synchronization of OFDM signals |
08/29/2000 | CA2180203C Radio communication apparatus and method |
08/29/2000 | CA2179977C Code-division multiple-access base station transmitter |
08/29/2000 | CA2152315C Soft decision signal outputting receiver |
08/26/2000 | CA2299017A1 A method for high speed modulation and error control coding |
08/24/2000 | WO2000049782A2 A system and method for recovering symbol timing offset and carrier frequency error |
08/24/2000 | WO2000049781A1 Method for detecting pilot signals |
08/24/2000 | WO2000049710A1 Direct digital vestigial sideband (vsb) modulator |
08/24/2000 | WO1999037051A3 Method and apparatus for synchronizing a data communication system to a periodic digital impairment |
08/24/2000 | WO1998039872A3 Improvements in, or relating to synchronisation |
08/24/2000 | DE19906293A1 Method of detecting pilot tones for mobile telephones |
08/24/2000 | CA2663122A1 A system and method for recovering symbol timing offset and carrier frequency error in an ofdm digital audio broadcast system |
08/24/2000 | CA2362029A1 A system and method for recovering symbol timing offset and carrier frequency error in an ofdm digital audio broadcast system |
08/23/2000 | EP1030490A2 Method and apparatus for discrete multitone communication bit allocation |
08/23/2000 | EP1030489A1 Multicarrier transceiver |
08/23/2000 | EP1030488A2 Coherent detection system for multicarrier signals |
08/23/2000 | EP1030487A2 Method for synchronizing transmitter and receiver during data transmission using multicarrier on a power line |
08/23/2000 | EP1030458A2 Wideband parallel processing digital tuner |
08/23/2000 | EP1029397A1 Reconfigurable radio system architecture |
08/23/2000 | EP1029396A1 Receiver for a reconfigurable radio system and method therefor |
08/22/2000 | US6108810 Digital audio broadcasting method using puncturable convolutional code |
08/22/2000 | US6108525 Transceiver |
08/22/2000 | US6108387 AFC circuit for a frequency scanning receiver |
08/22/2000 | US6108385 Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems |
08/22/2000 | US6108375 Equalization circuit for unknown QAM constellation size |
08/22/2000 | US6108374 System and method for measuring channel quality information |
08/22/2000 | US6108373 Process and device for detecting loss of carrier recovery and of determining the Eb/No ratio of a digital transmission link |
08/22/2000 | US6108353 Demodulating apparatus |
08/22/2000 | US6108349 Method and apparatus for registering remote service units in a multipoint communication system |
08/22/2000 | CA2298273A1 Method and system for compensation of channel distortion using lagrange polynomial interpolation |
08/22/2000 | CA2206137C Demodulator |
08/17/2000 | WO2000048371A1 Clock reproducing circuit |
08/17/2000 | WO2000048370A2 Modem with a reduced state maximum likelihood sequence estimator |
08/17/2000 | WO2000048369A1 Termination of coded or uncoded modulation with path-oriented decoder |
08/17/2000 | WO2000048346A2 A non-coherent, non-data-aided pseudo-noise synchronization and carrier synchronization for qpsk or oqpsk modulated cdma system |