Patents for H04L 27 - Modulated-carrier systems (89,721) |
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08/04/1999 | EP0933902A2 Demodulation with fading compensation |
08/04/1999 | EP0933896A2 Demodulation circuit including error correction |
08/04/1999 | EP0932974A1 Circuitry and method for simultaneously transmitting voice and data information |
08/04/1999 | EP0932961A1 Local communication system and apparatus for use therein |
08/04/1999 | EP0701752B1 A method and apparatus for determining signal usability |
08/04/1999 | EP0563252B1 Multi-modulation scheme compatible radio |
08/04/1999 | CN1225211A Method and apparatus for implementing a wireine transmission connection |
08/03/1999 | US5933768 Receiver apparatus, and associated method, for receiving a receive signal transmitted upon a channel susceptible to interference |
08/03/1999 | US5933467 Device for receiving a source digital signal transmitted |
08/03/1999 | US5933465 Control signal detection method with calibration error and subscriber unit therewith |
08/03/1999 | US5933461 Data receiving apparatus, demodulator circuit and integrated circuit |
08/03/1999 | US5933460 Phase detecting method and phase tracking loop circuit for a digital vestigial sideband modulation communication device |
08/03/1999 | US5933455 Data slicer for demodulated binary FSK signals in a time division duplex radio environment |
08/03/1999 | US5933454 Multi-carrier data transmissions system using an overhead bus for synchronizing multiple remote units |
08/03/1999 | US5933452 Timing interpolator in digital demodulator |
08/03/1999 | US5933448 Automatic tuning of a radio transceiver |
08/03/1999 | US5933415 Circuit for transmitting binary data on the electric network using several transmission channels |
08/03/1999 | US5933200 Method for reducing carrier recovery time in high definition television receiver |
08/03/1999 | US5933059 Method and apparatus for controlling frequency synchronization in a radio telephone |
08/03/1999 | US5933053 Burst demodulator |
08/03/1999 | US5933039 Integrated circuit |
08/03/1999 | US5931965 Method of forward error correction coding for a data signal |
08/03/1999 | CA2145571C Recovering analog and digital signals from superimposed analog and digital signals using linear prediction |
08/03/1999 | CA2140026C A method and apparatus for mitigating distortion effects in the determination of signal usability |
08/03/1999 | CA2089154C Automatic frequency control by an adaptive filter |
07/29/1999 | WO1999038337A2 Method and system for generating a complex pseudonoise sequence for processing a code division multiple access signal |
07/29/1999 | WO1999038301A1 Method for processing a signal consisting of data symbols |
07/29/1999 | WO1999038300A2 Radio telephone for spread-spectrum system using nonlinear modulation |
07/29/1999 | WO1999038298A1 Pulse shaping according to modulation scheme |
07/29/1999 | WO1999038297A1 Pulse shaping which compensates for component distortion |
07/29/1999 | WO1999038269A1 Circuit for demodulating two-dimensional data symbols transmitted by means of supported data transmission |
07/28/1999 | EP0932290A1 Interface apparatus and method for a communications device |
07/28/1999 | EP0932285A2 Reduction of instantaneous maximum power in multicarrier signals |
07/28/1999 | EP0932284A2 Multicarrier transmission system, with modifiable bandwidth |
07/28/1999 | EP0932283A1 BPSK demodulator for PCM signal |
07/28/1999 | EP0932252A2 Tuning demodulator for digitally modulated RF signals |
07/28/1999 | EP0931404A1 Receiver signal processing system for cap signals |
07/28/1999 | EP0931388A2 Spatio-temporal processing for communication |
07/28/1999 | EP0931382A1 Method and apparatus for decoding block codes |
07/28/1999 | EP0792546B1 Distortion corrector for two data flows and corresponding method |
07/28/1999 | CN1224291A Multiband detector |
07/27/1999 | US5930518 Arithmetic unit |
07/27/1999 | US5930310 Data signal demodulator |
07/27/1999 | US5930306 Device for correcting phase noise in a digital receiver |
07/27/1999 | US5930304 Wireless powered communication device with adaptive data detection and method |
07/27/1999 | US5930303 Digital modulation employing single sideband with suppressed carrier |
07/27/1999 | US5930301 Up-conversion mechanism employing side lobe-selective pre-distortion filter and frequency replica-selecting bandpass filter respectively installed upstream and downstream of digital-to-analog converter |
07/27/1999 | US5930299 Digital modulator with compensation and method therefor |
07/27/1999 | US5930292 Method and apparatus for improved autocorrelation in biphase modulated pseudorandom noise coded systems using tri-state demodulation |
07/27/1999 | US5929703 Method and device for modeling AM-AM and AM-PM characteristics of an amplifier, and corresponding predistortion method |
07/27/1999 | CA2149584C Digital vsb detector with final i-f carrier at submultiple of symbol rate, as for hdtv receiver |
07/27/1999 | CA2101328C Gain control circuit for radio transmitter |
07/27/1999 | CA2040558C Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in multicarrier modems |
07/22/1999 | WO1999037068A1 Method and apparatus for tracking the characteristics of a channel |
07/22/1999 | WO1999037051A2 Method and apparatus for synchronizing a data communication system to a periodic digital impairment |
07/21/1999 | EP0930754A2 Blind automatic gain control |
07/21/1999 | EP0930753A2 Method for calibrating a multicarrier transmitter and receiver |
07/21/1999 | EP0930752A2 Method for allocating data and power in a discrete multitone communication system |
07/21/1999 | EP0930751A1 Method and apparatus for receiving orthogonal frequency division multiplexed signal |
07/21/1999 | EP0930750A1 Method of upstream channel modeling for PCM modem |
07/21/1999 | EP0930745A1 Circuit and method of identifying a burst frequency |
07/21/1999 | EP0930728A2 Digital optical transmission apparatus and method for performing ASK modulation to generate base band component with constant DC level |
07/21/1999 | EP0929960A2 Method for eliminating interference in an ofdm radio receiver |
07/21/1999 | EP0929959A1 Method for transmitting data packets on carrier frequency with linear variation and transmitter implementing this method |
07/21/1999 | CN1223759A Device and method for radio transmitters |
07/21/1999 | CN1223757A System for radio transmission of digital signals between a plurality of subscriber stations and a base station |
07/21/1999 | CN1223514A Digital communication system |
07/21/1999 | CN1223506A Nonlinearity-caused distortion compensating system |
07/20/1999 | US5926768 Method of optimizing radio communication between a base and a mobile |
07/20/1999 | US5926750 Receiver |
07/20/1999 | US5926746 Frequency and other parameter adjustment using training channel |
07/20/1999 | US5926508 Communication scheme using non-coherent frequency detection of trellis-based coding of plural transmission frequencies per baud |
07/20/1999 | US5926507 Quotient coding modem |
07/20/1999 | US5926065 Digital modulator having a digital filter including low-speed circuit components |
07/20/1999 | US5925114 Modem implemented in software for operation on a general purpose computer having operating system with different execution priority levels |
07/15/1999 | WO1999035756A1 ACTIVATION OF MULTIPLE xDSL MODEMS WITH CHANNEL PROBE |
07/15/1999 | WO1999035746A1 Noise cancellation circuit and quadrature downconverter |
07/15/1999 | WO1999035736A1 Quadrature modulator and demodulator |
07/15/1999 | WO1999025075A3 A wireless communication device |
07/15/1999 | WO1999023779A3 Composite trellis system and method |
07/15/1999 | WO1999020016B1 Method and apparatus for maintaining a predefined transmission quality in a wireless man network |
07/15/1999 | CA2316969A1 Quadrature modulator and demodulator |
07/14/1999 | EP0929172A1 Multicarrier modulation system, with variable symbol rates |
07/14/1999 | EP0929171A2 Data transmission over power lines, using continuous phase signals |
07/14/1999 | EP0929165A1 Multi-carrier transmission method and data transmitter |
07/14/1999 | EP0929149A1 Receiver for data transmission |
07/14/1999 | EP0928540A4 Multiple modulation format television signal receie system |
07/14/1999 | EP0928540A1 Multiple modulation format television signal receiver system |
07/14/1999 | EP0928524A2 Pipeline communication system |
07/14/1999 | EP0928515A1 Adaptive digital predistortion linearization and feed-forward correction of rf power amplifier |
07/14/1999 | EP0928514A1 Receiver capable of demodulating multiple digital modulation formats |
07/14/1999 | EP0745290A4 A high-data-rate wireless local-area network |
07/14/1999 | CN1223045A Channel estimation arrangement |
07/14/1999 | CN1223030A DC offset compensation method and apparatus |
07/13/1999 | US5923760 Chaotic communication apparatus and method for use with a wired or wireless transmission link |
07/13/1999 | US5923711 Data processor |
07/13/1999 | US5923666 Decoding carriers encoded using orthogonal frequency division multiplexing |
07/13/1999 | US5923651 Increasing data throughput in a wireless telecommunications environment |
07/13/1999 | US5923454 Modem method and device for indicating received signal strength and presence for intensity modulated binary-coded wireless data packets with reduced recovery time |
07/13/1999 | US5923223 Transmission system in which either an in-phase or quadrature component of a transmitted signal is delayed prior to modulation |