| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 06/03/1997 | US5635876 Phase difference and amplitude correction circuit |
| 06/03/1997 | US5635864 Comparator circuit |
| 05/29/1997 | WO1997019542A1 Method of synchronizing a digital signal receiver |
| 05/29/1997 | WO1997019541A1 Filtering in a receiver that uses log-polar signal processing |
| 05/29/1997 | WO1997019540A1 Reduction of the amount of memory needed by a dsp modulator |
| 05/29/1997 | WO1997019539A1 RECEIVER FOR M-ary FSK SIGNALS |
| 05/29/1997 | WO1997019536A1 Diversity device improved in ability to reproduce carrier in synchronous detection |
| 05/28/1997 | EP0776119A2 Method and apparatus for simultaneous voice/data transmission |
| 05/28/1997 | EP0776110A2 Quadrature modulation circuit |
| 05/28/1997 | EP0776109A2 Reception filter for pulse-modulated signals |
| 05/28/1997 | EP0775410A2 Transmission system using transmitter with phase modulator and frequency multiplier |
| 05/28/1997 | EP0775409A2 Nonlinear digital communications system |
| 05/28/1997 | EP0775408A1 Digital super-regenerative detector rf receiver |
| 05/28/1997 | EP0716790A4 Information transmission system and method of operation |
| 05/28/1997 | CN1150877A Automatic modulation mode selecting unit and method for modems |
| 05/28/1997 | CA2190791A1 Method and apparatus for simultaneous voice/data transmission |
| 05/27/1997 | US5634198 Nationwide communication system |
| 05/27/1997 | US5633898 Automatic frequency control apparatus for FSK receiver and FSK receiver including the same |
| 05/27/1997 | US5633896 AM compatible digital waveform demodulation using a dual FFT |
| 05/27/1997 | US5633895 Communication device with synchronized zero-crossing demodulator and method |
| 05/27/1997 | US5633894 Circuit for modulating a sinusoidal waveform signal using digital pulse shaping |
| 05/27/1997 | US5633893 Communications system |
| 05/27/1997 | CA2096664C Quadrature modulation circuit |
| 05/22/1997 | WO1997018674A1 Multichannel radio frequency transmission system to deliver wide band digital data into indepedent sectorized service areas |
| 05/22/1997 | DE19648057A1 Amplitude fault correction for quadrature detector |
| 05/22/1997 | DE19542991A1 Verfahren zur Synchronisierung eines Empfängers für digitale Signale A method of synchronizing a receiver for digital signals |
| 05/22/1997 | CA2236088A1 Multichannel radio frequency transmission system to deliver wideband digital data into independent sectorized service areas |
| 05/21/1997 | EP0774850A2 Digital signal detecting method and detector |
| 05/20/1997 | US5631923 Two-wire full-duplex modem |
| 05/20/1997 | US5631651 Telecom adapter for interfacing computing devices to the analog telephone network |
| 05/20/1997 | US5631645 Symbol to byte converter |
| 05/20/1997 | US5631610 Single side-band modulation system for use in digitally implemented multicarrier transmission systems |
| 05/20/1997 | CA2110032C Frequency error detecting device capable of correctly detecting a frequency error between a carrier frequency and a standard frequency |
| 05/20/1997 | CA2045259C Solid state power amplifier with dynamically adjusted operating point |
| 05/15/1997 | WO1997017789A1 System and method for multiplexing a spread spectrum communication system |
| 05/15/1997 | WO1997012446A3 Receiver architecture for the receiving of angle-modulated/ angle-keyed carrier signals |
| 05/15/1997 | WO1997011539A3 Method for the common transmission of digital and analogue modulated radio broadcasting and/ or television broadcasting signals |
| 05/14/1997 | EP0773655A2 Method and apparatus for receiving a QAM signal |
| 05/14/1997 | EP0773654A1 Direct demodulation stage for a quadrature modulated signal, and receiver with such a demodulation stage |
| 05/14/1997 | EP0773643A2 An interference reduction scheme and method |
| 05/14/1997 | EP0773642A2 Interference reduction in telecommunications systems |
| 05/14/1997 | EP0772932A1 Method and device for phase-modulated signals |
| 05/14/1997 | EP0772905A1 A direct conversion receiver |
| 05/14/1997 | EP0707767B1 Systems with increased information rates using embedded sample modulation and predistortion equalization |
| 05/14/1997 | CN1149941A Multiple access up converter/modulator and method |
| 05/14/1997 | CA2190178A1 Unit for direct demodulation of phase quadrature modulated signals and receiver incorporating such a unit |
| 05/13/1997 | US5630228 Double balanced mixer circuit with active filter load for a portable comunication receiver |
| 05/13/1997 | US5630153 Integrated digital signal processor/general purpose CPU with shared internal memory |
| 05/13/1997 | US5629961 Transmitter apparatus for mobile satellite communication terminal having an envelope equalizer |
| 05/13/1997 | US5629959 Wideband square-law detector having a triangular frequency characteristic as well as a transmission system and a receiver including such a detector |
| 05/13/1997 | US5629958 Data frame structure and synchronization system for digital television signal |
| 05/13/1997 | US5629957 Method and apparatus for simultaneously displaying distribution patterns of equalized output signals from multiple channels |
| 05/13/1997 | US5629956 Method and apparatus for reception and noncoherent serial correlation of a continuous phase modulated signal |
| 05/13/1997 | US5629655 Integrated distributed RC low-pass filters |
| 05/13/1997 | CA2096476C Receiver circuit for digital and analog modulated signal |
| 05/13/1997 | CA2087507C Method and system for modem command processing during data transfer |
| 05/13/1997 | CA2045880C Device operable with an excellent spectrum suppression |
| 05/09/1997 | WO1997016910A1 Method and apparatus for the provision and reception of symbols |
| 05/09/1997 | WO1997016909A2 Detection of multitone signals |
| 05/09/1997 | WO1997016900A1 Method and apparatus for symbol timing tracking |
| 05/09/1997 | WO1997016889A1 Pulse modulating method, pulse modulator, and pulse demodulator |
| 05/09/1997 | WO1997008631A3 Signal processor with reduced complexity, and receiver comprising such a signal processor |
| 05/07/1997 | EP0772332A2 Synchronisation of OFDM signals |
| 05/07/1997 | EP0772331A1 Correlation of OFDM signals |
| 05/07/1997 | EP0772330A2 Receiver and method for receiving OFDM signals |
| 05/07/1997 | EP0772329A1 Method and apparatus for decoding orthogonal frequency division multiplexed (OFDM) carriers |
| 05/07/1997 | EP0772328A1 Method and apparatus for differentially decoding signals |
| 05/07/1997 | EP0772316A2 Asynchronous transfer mode type multimedia radiocommunication system |
| 05/07/1997 | EP0772310A2 OFDM active deflectors |
| 05/07/1997 | EP0772309A2 Interference reduction in telecommunication systems |
| 05/07/1997 | EP0771497A1 Multiple carrier transmission in common wave broadcasting networks |
| 05/07/1997 | EP0771496A1 Frame synchronization in multicarrier transmission systems |
| 05/07/1997 | EP0771495A1 Method for spread spectrum communications |
| 05/07/1997 | EP0623256A4 Variable speed asynchronous modem. |
| 05/07/1997 | EP0538448B1 Superframes |
| 05/07/1997 | EP0532503B1 Cable television radio frequency subscriber data transmission apparatus and calibration method |
| 05/07/1997 | CN1149360A Improved ADSL compatible Discrete multi-tone apparatus |
| 05/06/1997 | US5628059 DC offset circuit for cartesian loop |
| 05/06/1997 | US5627864 Phase shift correcting apparatus of a sync detector in a satellite broadcasting reception system |
| 05/06/1997 | US5627863 Frame synchronization in multicarrier transmission systems |
| 05/06/1997 | US5627862 Apparatus for demodulating phase modulated WAVE |
| 05/06/1997 | US5627861 Carrier phase estimation system using filter |
| 05/06/1997 | US5627856 Method and apparatus for receiving and despreading a continuous phase-modulated spread spectrum signal using self-synchronizing correlators |
| 05/06/1997 | US5627604 Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot |
| 05/06/1997 | US5627500 Phase modulator having individually placed edges |
| 05/06/1997 | US5627499 Digital modulator and upconverter having single-bit delta-sigma data converters |
| 05/06/1997 | CA2047308C Apparatus and method for demodulating a digital modulation signal |
| 05/02/1997 | EP0771097A2 Differential detecting apparatus for PSK signals |
| 05/02/1997 | EP0771089A1 Amplitude modulation device with an electro-absorption modulator |
| 05/02/1997 | EP0771076A1 Frequency synthesizer |
| 05/02/1997 | EP0770311A2 Transmission system with improved tone detection |
| 05/02/1997 | EP0770310A2 Transmission system with improved tone detection |
| 05/02/1997 | EP0594761A4 Automatic detector and selector of rs-232 or v.35 interface |
| 05/01/1997 | WO1997016012A1 Broadband, low power fm/fsk transceiver for wireless communications systems |
| 05/01/1997 | WO1997016002A1 Clock signal recovery system for communication systems using pulse amplitude modulation/quadrature amplitude modulation |
| 05/01/1997 | WO1997016001A2 Detection method for a modulation system with a continuous phase |
| 05/01/1997 | WO1997015986A1 A method for direct sequence spreading of a data sequence (dsss) |
| 05/01/1997 | WO1997015980A1 Transmitter comprising carrier suppression and dc offset reduction means |
| 05/01/1997 | WO1997013333A3 Distributed circuit switched radiocommunications network |
| 05/01/1997 | CA2235737A1 A method for direct sequence spreading of a data sequence (dsss) |