| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 01/21/1997 | US5596608 Fading distortion compensation method and circuit |
| 01/21/1997 | US5596606 Synchronous detector and methods for synchronous detection |
| 01/21/1997 | US5596605 Radio receiver for use in the reception of digital multiplexing signals |
| 01/21/1997 | US5596604 Multicarrier modulation transmission system with variable delay |
| 01/21/1997 | US5596601 Method and apparatus for spread spectrum code pulse position modulation |
| 01/21/1997 | US5596582 AFC in OFDM modulation by shift of a window along a reception sample sequence |
| 01/21/1997 | US5596361 Two-way cable TV conversion system for data transmission over a dedicated frequency band |
| 01/16/1997 | WO1997001908A1 Demodulator |
| 01/16/1997 | WO1997001894A1 Modulation method and circuit arrangement for the transmission of data signals |
| 01/16/1997 | DE19628008A1 Entzerrerschaltkreis und -verfahren einer Datenkommunikationsendeinrichtung Equalizer circuit and method of a data communication terminal |
| 01/15/1997 | EP0753953A1 Method and apparatus for multi-level quadrature amplitude modulation |
| 01/15/1997 | EP0753948A1 Capacity allocation for OFDM |
| 01/15/1997 | EP0753947A1 Capacity allocation in a multicarrier system |
| 01/15/1997 | EP0753216A1 Circuit and method for generating accurate quadrature signals |
| 01/15/1997 | CN1140521A QAM constellation which is robust in presence of phase noise, encoder and decoder for this constellation |
| 01/15/1997 | CN1140520A 64 QAM signal constellation which is robust in presence of phase noice and has low decoding complexity |
| 01/15/1997 | CN1140517A Method, device, and radio for compensating for modulator frequency drift while allowing for data transmission |
| 01/15/1997 | CN1140514A Method and system for data communication, using M-ary modulation scheme and inleaving means |
| 01/15/1997 | CN1140370A Automatic frequency control system for GMSK-modulated signals |
| 01/15/1997 | CN1140369A Fast acquisition of GMSK-modulated signal for CDPD applications |
| 01/14/1997 | US5594759 Quasi-synchronous detection and demodulation circuit and frequency discriminator used for the same |
| 01/14/1997 | US5594758 For use in a receiver of a digital communications system |
| 01/14/1997 | US5594757 Method and apparatus for digital automatic frequency control |
| 01/14/1997 | US5594755 Apparatus for use in equipment providing a digital radio link between a fixed radio unit and a mobile radio unit |
| 01/14/1997 | US5594577 Optical receiver and optical transmission system using the receiver |
| 01/14/1997 | US5594389 Carrier regeneration circuit including area judging device |
| 01/14/1997 | US5594344 Method and apparatus for generating and detecting amplitude and phase modulated sensor signals |
| 01/12/1997 | CA2180973A1 Method for allocating data elements in multicarrier applications and equipment to perform this method |
| 01/12/1997 | CA2180972A1 Method for allocating data elements to a set of carriers, mapping unit and modulator to perform this method |
| 01/12/1997 | CA2153641A1 Digital communications system and method |
| 01/09/1997 | WO1997001256A1 Adaptive channel allocation in a frequency division multiplexed system |
| 01/09/1997 | WO1997001234A1 Frequency- and phase-regulator circuit for vsb receivers |
| 01/09/1997 | WO1997001218A1 A digital radio system, a digital radio device, and a quadrature demodulator |
| 01/09/1997 | WO1996033582A3 Transmission system with improved tone detection |
| 01/09/1997 | WO1996033581A3 Transmission system with improved tone detection |
| 01/09/1997 | DE19522231A1 Frequenz- und Phasenregelkreis Frequency and phase locked loop |
| 01/09/1997 | CA2222547A1 Adaptive channel allocation in a frequency division multiplexed system |
| 01/08/1997 | EP0752779A2 Distribution of phase of references in a multicarrier system |
| 01/08/1997 | EP0752765A2 A wide-band application based upon a narrow-band TMDA system |
| 01/08/1997 | EP0752185A1 Carrier recovery system for a vestigial sideband signal |
| 01/08/1997 | EP0752173A1 Blind equalizer for a vestigial sideband signal |
| 01/08/1997 | EP0752172A1 Carrier independent timing recovery system for a vestigial sideband modulated signal |
| 01/08/1997 | EP0573541B1 System for broadcasting and receiving digital data, receiver and transmitter for use in such system |
| 01/08/1997 | CN1139854A Method and device for transmitting discontinuous signals in radio communication |
| 01/08/1997 | CN1139838A Reducing low spurt peak value/average value signal by interpolation |
| 01/07/1997 | US5592677 Integrated data processing system including CPU core and parallel, independently operating DSP module |
| 01/07/1997 | US5592586 Voice compression system and method |
| 01/07/1997 | US5592516 Method and circuits for combining baseband signals and recovery of clock timing |
| 01/07/1997 | US5592514 Method of performing signal reconstruction at the receiving end of a communications system, such as for GSM |
| 01/07/1997 | US5592513 Synchronous modulator and methods for synchronous modulation |
| 01/07/1997 | US5592506 MSK spread-spectrum receiver which allows CDMA operations |
| 01/07/1997 | CA2096946C System for determining absolute phase of differentially-encoded phase-modulated signal |
| 01/03/1997 | WO1997000566A2 Digital radio signal frequency translation and oversampling device and method |
| 01/03/1997 | WO1996032784A3 Communications system and transmitting means therefor |
| 01/02/1997 | EP0751654A2 Frame synchronisation, particularly for MCM |
| 01/02/1997 | EP0751645A1 Receiver with device for clock recovery |
| 01/02/1997 | EP0751644A2 Control signal detection method with calibration error and subscriber unit therewith |
| 01/02/1997 | EP0751633A2 Radio communication apparatus and method for determination of frequency error occuring in a repeater station |
| 01/02/1997 | EP0751630A2 Code division multiple access base station transmitter |
| 01/02/1997 | EP0750810A1 Pipelined cell site base station receiver for multiple spread spectrum signals |
| 01/01/1997 | CN1139507A Circuit for the acquisition of a carrier signal by applying a substitute pilot to a synchronous demodulator |
| 01/01/1997 | CN1139502A Process for digital frequency correction in multi-carrier transmission processes |
| 01/01/1997 | CN1139327A Coarse frequency burst detector for wireline communication system |
| 01/01/1997 | CN1139321A Receiver and associated method for timing recovery and frequency estimation |
| 01/01/1997 | CN1139319A Rotationally invariant trellis coding incorporating transparent binary convolutional codes |
| 12/31/1996 | US5590403 Method and system for efficiently providing two way communication between a central network and mobile unit |
| 12/31/1996 | US5590357 Integrated CPU core and parallel, independently operating DSP module and time-critical core priority scheme |
| 12/31/1996 | US5590160 Symbol and frame synchronization in both a TDMA system and a CDMA |
| 12/31/1996 | US5590158 Method and apparatus for estimating PSK modulated signals |
| 12/31/1996 | US5590157 Data terminal comprising a demodulator for a FSK phase-coherent modulated signal |
| 12/31/1996 | US5590155 Equipment for generating a transmit signal from first and second digital signals |
| 12/31/1996 | US5590153 Digital modem for reducing interference in the same channel of another system |
| 12/31/1996 | US5589872 Compatible interactive TV and multimedia delivery system two-way cable TV conversion system for data transmission over a dedicated frequency band |
| 12/27/1996 | WO1996042161A1 Radio with peak power and bandwidth efficient modulation |
| 12/27/1996 | WO1996042160A2 Transmission system using transmitter with phase modulator and frequency multiplier |
| 12/27/1996 | EP0750411A2 Unique word detector for use in a coherent demodulator |
| 12/27/1996 | EP0749650A1 Method and apparatus for am compatible digital broadcasting |
| 12/27/1996 | EP0749649A1 Digital broadcast systems for local transmissions |
| 12/27/1996 | EP0471799B1 Time domain radio transmission system |
| 12/25/1996 | CN1138930A Simultaneous demodulation and decording of a digitally modulated radio signal |
| 12/25/1996 | CN1138926A Device and method for multiplexing signal |
| 12/25/1996 | CN1138925A Satellite receiver system having doppler frequency shift tracking system |
| 12/25/1996 | CN1138814A Coarse frequency burst detector for wireless communications system, such as for use with GSM |
| 12/25/1996 | CN1138795A Signal processing apparatus and method |
| 12/25/1996 | CN1033680C intermittent operation receiver |
| 12/24/1996 | US5588027 Digital demodulating method and circuit for use in a time-division multiple access channel |
| 12/24/1996 | US5588026 Method of compensating phase shift keying frequency offset |
| 12/24/1996 | US5588025 Single oscillator compressed digital information receiver |
| 12/24/1996 | US5588023 High content information transmission system |
| 12/24/1996 | US5588022 Method and apparatus for AM compatible digital broadcasting |
| 12/24/1996 | US5587797 Process for encoding and transmitting information |
| 12/24/1996 | CA2153685C Method and apparatus for creating a composite waveform |
| 12/19/1996 | WO1996041458A1 Method and circuit arrangement for improving carrier separation for the transmission of ofdm signals |
| 12/19/1996 | WO1996041457A1 Method and apparatus for signal classification using i/q quadrant histogram |
| 12/19/1996 | WO1996041452A1 Reverse path allocation and contention resolution scheme for a broadband communications system |
| 12/19/1996 | WO1996041277A1 Neutral network processor for communication systems and method for its use |
| 12/19/1996 | CA2223141A1 Method and apparatus for signal classification using i/q quadrant histogram |
| 12/18/1996 | EP0748551A1 Combating signal interference in digital transmission |
| 12/18/1996 | EP0748539A1 Transmitter and receiver having charge-coupled-device based signal processing |
| 12/18/1996 | EP0748538A1 Interleaving with low-speed memory |