| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 06/22/1999 | US5914620 Frequency doubling of a quadrature-amplitude modulated signal using a frequency multiplier |
| 06/22/1999 | CA2098011C Communication signal having a time domain pilot component |
| 06/17/1999 | WO1999030520A1 Radio transmission from a communication station with an antenna array to provide a desirable radiation pattern |
| 06/17/1999 | WO1999030465A1 Bit allocation in a transmission system |
| 06/17/1999 | WO1999030433A1 Spread spectrum multipath demodulator for a multichanel communication system |
| 06/17/1999 | WO1999030417A1 Automatic gain-controlled vhf/uhf antenna tuning apparatus |
| 06/17/1999 | WO1999030385A1 Vhf/uhf self-tuning planar antenna system |
| 06/17/1999 | WO1999012318B1 Method for doubling levels of coding |
| 06/17/1999 | WO1999007119A9 Truncated maximum likelihood sequence estimator for wireless local area networks |
| 06/17/1999 | WO1999001994A3 A subscriber unit and method for use in a wireless communication system |
| 06/17/1999 | DE19838295A1 Adaptive sub-carrier selection for reducing the peak values of a multi-carrier communications signal for parallel transfer of information signals on N sub-channels between a transmitter and receiver |
| 06/17/1999 | DE19802373C1 Demodulation circuit for two dimensional data symbols transferred by data communications |
| 06/17/1999 | CA2313453A1 Spread spectrum multipath demodulator for a multichanel communication system |
| 06/16/1999 | EP0923260A1 Control information assigning method, control method, transmitting method, receiving method, transmitter and receiver |
| 06/16/1999 | EP0923213A2 Compensation of nonlinearlities in transmitters using quadrature modulation |
| 06/16/1999 | EP0922351A1 Multilevel coding with time diversity |
| 06/16/1999 | EP0922346A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/16/1999 | EP0922345A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/16/1999 | EP0922344A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/16/1999 | EP0922343A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/16/1999 | EP0922342A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/16/1999 | EP0922341A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/16/1999 | CN1220055A Apparatus, method and article of manufacture for carrier frequency compensation in FM radio receiver |
| 06/15/1999 | US5913155 Broadcasting signal receiving apparatus and pulse counting demodulators |
| 06/15/1999 | US5913154 Rf device |
| 06/15/1999 | US5912931 Method for multicarrier signal detection and parameter estimation in mobile radio communication channels |
| 06/15/1999 | US5912930 Phase shift keying signal demodulation method and device |
| 06/15/1999 | US5912927 Multi-channel transmitter having an adaptive antenna array |
| 06/15/1999 | US5912926 Method of and apparatus for controlling modulation of digital signals in frequency modulated transmissions |
| 06/15/1999 | US5912922 Method and apparatus for modulation differentiation |
| 06/15/1999 | US5912920 Point-to multipoint digital communications system facilitating use of a reduced complexity receiver at each of the multipoint sites |
| 06/15/1999 | US5912919 Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system |
| 06/15/1999 | US5912917 Digital broadcast system |
| 06/15/1999 | US5912876 Method and apparatus for channel estimation |
| 06/15/1999 | US5912827 Digital filter with low rolloff factor |
| 06/15/1999 | US5912590 Broad-band amplifier circuit and high-speed communication element using the same |
| 06/15/1999 | CA2256169A1 Circuit for reproducing bit timing and method of reproducing bit timing |
| 06/15/1999 | CA2144794C Concatenated coded vestigial sideband modulation for high definition television |
| 06/15/1999 | CA2122582C Electric power distribution system for active cathodic protection of reinforced concrete constructions |
| 06/15/1999 | CA2121757C Intersymbol interference channel coding scheme |
| 06/15/1999 | CA2103786C Quadrature amplitude modulation synchronization method |
| 06/15/1999 | CA2010117C Trellis shaping for modulation systems |
| 06/10/1999 | WO1999029079A1 Trellis decoding with multiple symbol noncoherent detection and interleaving to combat frequency offset |
| 06/10/1999 | WO1999029078A2 Improvements in, or relating to, data scramblers |
| 06/10/1999 | WO1999029077A1 Phase digitizer for radio communications |
| 06/10/1999 | WO1999029076A1 Digital radio receiver |
| 06/10/1999 | WO1999029075A1 Hierarchical transmission digital demodulator |
| 06/10/1999 | WO1999029074A1 Circuit for generating a modulated signal |
| 06/10/1999 | WO1999029062A1 Line card with modem interface |
| 06/10/1999 | WO1999029054A1 Packet-switched spread-spectrum system |
| 06/10/1999 | WO1999029043A1 Coding and modulation method and apparatus for its implementation |
| 06/10/1999 | WO1999008437A3 Method for synchronization on a qpsk signal carrier |
| 06/10/1999 | WO1998058457A3 Reduced peak-to-average amplitude multichannel link |
| 06/10/1999 | DE19852509A1 Modulation circuit for data signal transmission with Nyquist characteristic |
| 06/10/1999 | CA2312928A1 Trellis decoding with multiple symbol noncoherent detection and interleaving to combat frequency offset |
| 06/09/1999 | EP0921663A2 DC-offset canceller |
| 06/09/1999 | EP0921646A2 Digital radio communication system with diversity reception |
| 06/09/1999 | EP0920766A1 Receiver with controllable amplifier means |
| 06/09/1999 | EP0920765A2 Improvements in, or relating to synchronisation |
| 06/09/1999 | EP0920764A1 Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment |
| 06/09/1999 | EP0920763A1 Data transmission by impulse position modulation and amplitude modulation |
| 06/09/1999 | EP0920758A2 Improvements in, or relating to synchronisation |
| 06/09/1999 | EP0920757A2 Signal transformation method and apparatus |
| 06/09/1999 | EP0920756A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/09/1999 | EP0920755A2 Improvements in, or relating to, multi-carrier transmission systems |
| 06/09/1999 | EP0920741A1 Frequency division multiplexed transmission of sub-band signals |
| 06/09/1999 | EP0920738A1 High capacity wireless communication using spatial subchannels |
| 06/09/1999 | EP0920732A2 Method and apparatus for communicating information |
| 06/09/1999 | CN1219315A Balanced transversal I, Q filter for quadrature modulators |
| 06/09/1999 | CN1219058A Strong anti-jamming digit modulating and demodulating plan for radio communication with fade |
| 06/09/1999 | CN1219046A Single or multiple way non-guide phase interference demodulating device and relative multi-way receiving module |
| 06/09/1999 | CN1219021A Method and system for timed retoring and channel estimation in discrete multione modem |
| 06/09/1999 | CN1219020A Frequency converter circuit of tuner for cable modem |
| 06/09/1999 | CN1218957A Method and apparatus for detecting spread spectrum signal |
| 06/08/1999 | US5910970 For interfacing modem hardware with a host operating system |
| 06/08/1999 | US5910968 Continuous phase modulation digital communication system |
| 06/08/1999 | US5910967 Pragmatic encoder and method therefor |
| 06/08/1999 | US5910966 Signal transferring circuit |
| 06/08/1999 | US5910960 Signal processing apparatus and method |
| 06/08/1999 | US5910731 Front end interface circuit and method of tuning the same |
| 06/08/1999 | CA2131770C Synchronization adder circuit |
| 06/03/1999 | WO1999027689A2 Demodulation unit and method of demodulating a quadrature signal |
| 06/03/1999 | WO1999027671A1 Orthogonal frequency division multiplexing receiver where fft window position recovery interlocks with sampling clock adjustment and method thereof |
| 06/03/1999 | WO1999027648A1 Broadband phase-shifting circuit |
| 06/03/1999 | WO1999017491A3 Communications system for multichannel transmission with carrier modulation |
| 06/03/1999 | WO1999013621A3 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus |
| 06/02/1999 | EP0920164A2 Coding and modulation method and apparatus for its implementation |
| 06/02/1999 | EP0920163A2 Estimating of coarse frequency offset in multicarrier receivers |
| 06/02/1999 | EP0920162A2 Method and device for correcting the phase error of a PSK modulated signal |
| 06/02/1999 | EP0920161A2 Equalisation with zeroing of low correlation values |
| 06/02/1999 | EP0920121A1 Frequency converter circuit for cable modem tuner |
| 06/02/1999 | EP0919098A2 Transmission of digital signals by orthogonal frequency division multiplexing |
| 06/02/1999 | EP0919091A1 Receiver for independent sideband signals |
| 06/02/1999 | CN1218358A Communication method, transmitter, receiver, and celluler radio communication system |
| 06/02/1999 | CN1218337A Receiver, radio communication system and communication method |
| 06/02/1999 | CN1218330A Gain control method and circuit |
| 06/01/1999 | US5909642 Nonlinear distortion detecting circuit and nonlinear distortion compensating circuit for transmitter |
| 06/01/1999 | US5909472 Digital circuit clocking using a dual side band suppressed carrier clock modulated signal |
| 06/01/1999 | US5909471 Method and system for rapid initial control signal detection in a wireless communications system |
| 06/01/1999 | US5909470 Method and apparatus for decision directed demodulation using antenna arrays and spatial processing |