| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 03/23/1999 | US5887032 Method and apparatus for crosstalk cancellation |
| 03/23/1999 | US5887028 Digital receiver |
| 03/23/1999 | US5887027 Method of upstream channel modeling for PCM modem |
| 03/23/1999 | US5887026 Transmission level setting circuit and modem unit using the same |
| 03/23/1999 | US5887020 Multi-band, multi-mode spread-spectrum communication system |
| 03/23/1999 | US5886584 Method and apparatus for adjusting modulation accuracy of an orthogonal modulation |
| 03/23/1999 | CA2164694C Phase detector |
| 03/23/1999 | CA2153682C Method and apparatus for multi-phase component downconversion |
| 03/23/1999 | CA2116042C Digital fsk receiver using double zero-crossing |
| 03/18/1999 | WO1999013652A2 Method of implementing macrodiversity |
| 03/18/1999 | WO1999013623A1 Method for estimating an interference phase shift when receiving a multicarrier signal and corresponding receiver |
| 03/18/1999 | WO1999013622A1 Apparatus for providing increased data rates within existing modulation systems |
| 03/18/1999 | WO1999013621A2 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus |
| 03/18/1999 | WO1999013590A1 Rf transmitter |
| 03/18/1999 | WO1999013585A1 Device and method for data encoding and frequency diversity in mobile communications system |
| 03/18/1999 | WO1998058471A3 Method and apparatus for implementing a transmission connection |
| 03/18/1999 | DE19740739A1 Automatic detection method by QAM-receiver for QAM-mode transmitted signal |
| 03/17/1999 | EP0902575A2 Method and apparatus for evaluating Multifrequency tone signals using an adaptive wave digital notch filter |
| 03/17/1999 | EP0902574A2 Method for encoding data in COFDM systems |
| 03/17/1999 | EP0901725A1 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio transmitter |
| 03/17/1999 | EP0901721A1 Device and method for radio transmitters |
| 03/17/1999 | EP0901714A1 An apparatus, method and article of manufacture for carrier frequency compensation in an fm radio receiver |
| 03/17/1999 | CN1211129A Telecommunication system for providing both narrowband and broadband services |
| 03/16/1999 | US5884103 Data terminal with adapter for selectively modifying data transmitted to and from |
| 03/16/1999 | US5883930 Digital PLL circuit and actuating method |
| 03/16/1999 | US5883922 FSK communication device for digital information |
| 03/16/1999 | US5883921 Short burst acquisition circuit and method for direct sequence spread spectrum links |
| 03/16/1999 | US5883551 Quadrature modulator malfunction estimator and modulator stage using it |
| 03/16/1999 | US5883548 Demodulation system and method for recovering a signal of interest from an undersampled, modulated carrier |
| 03/16/1999 | CA2113710C Carrier detector |
| 03/11/1999 | WO1999012318A2 Method for doubling levels of coding |
| 03/11/1999 | WO1999012317A1 Digital transmission using subband coding |
| 03/11/1999 | WO1999012305A1 Fast fourier transform window position recovery apparatus for orthogonal frequency division multiplexing system receiver |
| 03/11/1999 | WO1999012304A1 A method for selecting a combination of modulation and channel coding schemes in a digital communication system |
| 03/11/1999 | WO1999012302A1 A method for selecting a link protocol for a transparent data service in a digital communications system |
| 03/11/1999 | WO1999012294A1 Multi-carrier transmitter |
| 03/11/1999 | WO1999012290A2 Method for parameter estimation and receiver |
| 03/11/1999 | WO1999012283A1 A method for demodulating information in a communication system that supports multiple modulation schemes |
| 03/11/1999 | WO1999012274A1 Apparatus and method for transmitting signals in a communication system |
| 03/11/1999 | CA2335849A1 Method for doubling levels of coding |
| 03/11/1999 | CA2301881A1 A method for selecting a link protocol for a transparent data service in a digital communications system |
| 03/11/1999 | CA2301866A1 Digital transmission using subband coding |
| 03/11/1999 | CA2269549A1 Multi-carrier transmitter |
| 03/10/1999 | EP0901260A2 Frame and symbol synchronisation in multicarrier receivers |
| 03/10/1999 | EP0901259A2 Correction of phase and/or frequency offsets in multicarrier signals |
| 03/10/1999 | EP0901258A2 Receiver for mobile radio system |
| 03/10/1999 | EP0901257A2 Method for generating a multimodulation frame and modulator for carrying out said method |
| 03/10/1999 | EP0901256A1 Transmission system for OFDM-signals with optimized synchronisation |
| 03/10/1999 | EP0901221A1 Differential output amplifier arrangement and method for tuning the output impedance of a differential output amplifier |
| 03/10/1999 | EP0900490A1 A receiver and method thereof |
| 03/10/1999 | EP0900479A1 Highly stable frequency synthesizer loop with feedforward |
| 03/10/1999 | EP0620960B1 Information coding and transmission process |
| 03/10/1999 | CN1210423A Circuits and systems for generating and communicating advanced television signals |
| 03/10/1999 | CN1210398A Carrier control loop for receiver of digitally transmitted signals |
| 03/09/1999 | US5881376 Digital calibration of a transceiver |
| 03/09/1999 | US5881112 Modulator with baseband to phase converter |
| 03/09/1999 | US5881111 Frequency sweep circuit |
| 03/09/1999 | US5881110 Carrier phase synchronization by reverse playback |
| 03/09/1999 | US5881109 Pulse shaping filter for π/4-shift QPSK modulator |
| 03/09/1999 | US5881107 Transmission system for digital signals, and transmitter and receiver therefor |
| 03/09/1999 | US5881100 Method and apparatus for coherent correlation of a spread spectrum signal |
| 03/09/1999 | US5881057 Synchronous detector with reduced error computation for maximal-ratio combining |
| 03/09/1999 | US5881047 Simultaneous analog and digital communication with improved phase immunity |
| 03/09/1999 | US5880687 Cascaded integrator-comb interpolation filter |
| 03/09/1999 | US5880642 Programmable frequency synthesizer having a low sensitivity to phase noise |
| 03/09/1999 | US5880629 Demodulator having variable gain amplifier and A/D converter controlled by signal level |
| 03/04/1999 | WO1999011041A1 Simultaneous decoding and phase synchronisation using the criterion of maximum likelihood |
| 03/04/1999 | WO1999011040A1 Digital modulator for angle and/or amplitude modulation |
| 03/04/1999 | WO1999011024A2 Local communication system and apparatus for use therein |
| 03/04/1999 | WO1998056119A3 Non-coherent sequence estimation receiver for digital modulations |
| 03/03/1999 | EP0899923A1 Transmission of power control signals in a multicarrier modulation system |
| 03/03/1999 | EP0899922A2 Rubust receiver for FSK signals |
| 03/03/1999 | EP0899906A2 System and method for measuring channel quality information |
| 03/03/1999 | EP0899895A1 Coherent demodulation of spread spectum signals without pilot signal |
| 03/03/1999 | EP0899888A1 Coding and decoding methods and devices and equipment using them |
| 03/03/1999 | EP0660978A4 A data decoder and method for use therein using a dynamically indexed channel state metric. |
| 03/03/1999 | EP0573621B1 Device and method for precoding |
| 03/03/1999 | CN1209700A Demodulation apparatus of low power-consumption including a small circuit |
| 03/02/1999 | US5878335 Composite direct digital synthesizer |
| 03/02/1999 | US5878090 Receiver synchronization using punctured preamble |
| 03/02/1999 | US5878088 Digital variable symbol timing recovery system for QAM |
| 03/02/1999 | US5878085 Trellis coded modulation communications using pilot bits to resolve phase ambiguities |
| 03/02/1999 | US5878084 Method and apparatus for recovering the independent bit streams from each of two co-channel frequency modulated carriers |
| 03/02/1999 | US5878077 Apparatus for high-speed simultaneous voice/data communications |
| 03/02/1999 | CA2242935A1 Method for generating a multimodulation frame and modulator for carrying out said method |
| 03/02/1999 | CA2074553C Method and apparatus for communicating digital data using trellis coded qam |
| 03/01/1999 | CA2245431A1 Method and apparatus for detecting spectrum spread signals |
| 02/28/1999 | CA2243757A1 A radio frequency zero if direct down converter |
| 02/28/1999 | CA2214287A1 Method and apparatus for encoding a signal using pairs of its sub-band signals for quadrature amplitude modulation |
| 02/25/1999 | WO1999009722A1 Rotationally invariant pragmatic trellis coded digital communication system and method therefor |
| 02/25/1999 | WO1999009721A1 Self configuring multi-mode communications terminal |
| 02/25/1999 | WO1999009720A1 System and method for communicating digital data while resolving phase ambiguities |
| 02/25/1999 | WO1999009719A1 Remote vehicle data interface tag system |
| 02/25/1999 | CA2297951A1 Remote vehicle data interface tag system |
| 02/24/1999 | EP0898403A1 Apparatus for receiving digital information signals |
| 02/24/1999 | EP0898400A2 Communication method, transmission and reception apparatuses, and cellular radio communication system |
| 02/24/1999 | EP0898381A2 Equalizing method and equalizer for ofdm receiver |
| 02/24/1999 | EP0858695A4 Apparatus and method for digital data transmission |
| 02/24/1999 | EP0677202B1 Discriminating between stationary and non-stationary signals |
| 02/24/1999 | EP0557297B1 Method and apparatus for modulating and detecting a subcarrier signal for an inductively coupled transponder |