| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 03/24/1993 | CN1070299A Implementation method of modem |
| 03/23/1993 | US5197085 Radio receiver |
| 03/23/1993 | US5197084 Automatic information acquisition system |
| 03/23/1993 | US5197061 Device for the transmission of digital data with at least two levels of protection and corresponding reception device |
| 03/23/1993 | CA1314947C Continuous phase shift modulation system with improved spectrum control |
| 03/18/1993 | WO1993005569A1 Phase locked loop frequency synthesizer with dc data modulation capability |
| 03/18/1993 | WO1993004572A2 Coding of images and originals, for example for telefax and colour television |
| 03/17/1993 | EP0532400A1 Discriminator with a truncated frequency characteristic |
| 03/17/1993 | EP0531302A1 Cable television radio frequency subscriber data transmission apparatus and rf return method |
| 03/17/1993 | EP0334867B1 Duplex data transmission |
| 03/16/1993 | US5195108 System and method for determining absolute phase of a differentially-encoded, phase-modulated signal |
| 03/16/1993 | US5195107 Technique for compensating for intersymbol interference |
| 03/16/1993 | US5195106 Method for channel adaptive detecting/equalize |
| 03/16/1993 | US5195098 Binary data error correction using hint signal |
| 03/16/1993 | US5194829 Radio set with easily selected oscillator frequency |
| 03/10/1993 | EP0531100A2 Baseband pulse shaper for GMSK modulators |
| 03/10/1993 | EP0531046A2 Multi-subcarrier modulation for HDTV transmission |
| 03/09/1993 | US5193224 Adaptive phase control for a power amplifier predistorter |
| 03/09/1993 | US5193222 System for interrupting a transmitter output wave |
| 03/09/1993 | US5193035 Apparatus and method for phase correction of a clock signal by controlling the variable delaying thereof |
| 03/04/1993 | WO1993004547A1 Method and system for encoding and decoding frequency shift keying signals |
| 03/04/1993 | WO1993004546A1 Radio information and communication system using multicarrier spread-spectrum transmission system |
| 03/04/1993 | WO1993004536A1 Modem |
| 03/03/1993 | EP0530107A1 PSK demodulator with baseband correction for phase or frequency errors |
| 03/03/1993 | EP0529986A2 FSK modulator and demodulator |
| 03/03/1993 | EP0529767A1 Digital radio communication apparatus |
| 03/03/1993 | EP0529718A1 Digital signal transmission system using concatenated codes and receiver and decoder used for this system |
| 03/03/1993 | EP0529618A1 Demodulating device |
| 03/03/1993 | EP0529421A2 Method and apparatus for measuring carrier frequency offset in a multichannel communications system |
| 03/03/1993 | EP0528848A1 Frequency converter for a radio communications system. |
| 03/03/1993 | CN1069606A Amplifier for limiter |
| 03/02/1993 | US5191597 Method of compensating for non-linearities in an end amplifier incorporated in a radio transmitter |
| 03/02/1993 | US5191576 Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization |
| 03/02/1993 | CA1314080C Method and apparatus for quadrature modulation |
| 02/24/1993 | EP0528738A1 Method and circuit for adapting the coefficients in the equalizer of a modem |
| 02/24/1993 | EP0528118A2 Multi-frequency communication system with an improved diversity scheme |
| 02/24/1993 | EP0527966A1 A multilevel coherent optical system. |
| 02/24/1993 | EP0484476A4 Digital automatic gain control |
| 02/24/1993 | EP0159326B1 Digital signal processor modem |
| 02/23/1993 | US5189684 Line signal deterioration removing systems |
| 02/23/1993 | US5189564 Magnetic recording/reproducing method and apparatus |
| 02/23/1993 | US5189381 Apparatus for generating a sinusoidal output signal |
| 02/18/1993 | WO1993003561A1 Apparatus and method for controlling transmitted power of a modem |
| 02/18/1993 | WO1993003554A1 Device and method for combining precoding with symbol-rate spectral shaping |
| 02/17/1993 | EP0527469A2 FSK data receiving system |
| 02/17/1993 | EP0527432A2 A circuit and method for phase error correction in a digital receiver |
| 02/17/1993 | EP0527289A1 Method for transmission of digital HDTV signals |
| 02/17/1993 | EP0527249A1 Carrier recovery apparatus for digital satellite communication system |
| 02/16/1993 | US5187721 Frequency shift keying modulator |
| 02/16/1993 | US5187591 System for transmitting and receiving aural information and modulated data |
| 02/13/1993 | CA2072709A1 Circuit and method for phase error correction in a digital receiver |
| 02/10/1993 | EP0527034A2 Digital phase-locked loop circuit |
| 02/10/1993 | EP0526836A2 QPSK demodulator with automatic frequency control |
| 02/10/1993 | EP0526833A2 Carrier frequency error detector capable of accurately detecting a carrier frequency error |
| 02/10/1993 | EP0526704A2 Harmonic-frequency communication system with improved diversity scheme |
| 02/10/1993 | EP0378639B1 An arrangement for wireless transmission of signals received via a serial two-conductor data bus |
| 02/09/1993 | US5185765 High speed data communication system using phase shift key coding |
| 02/09/1993 | US5185764 Receiver for time-varying distorted signals |
| 02/09/1993 | US5185763 Data bit to constellation symbol mapper |
| 02/04/1993 | WO1993002519A1 Transition generating between on and off states of a radio frequency transmitter |
| 02/03/1993 | EP0525641A2 Communication system using trellis coded QAM |
| 01/28/1993 | DE4124836A1 Demodulation of FSK-signals for high rate data transmission - using at least two IIR-filters which can be set at response time zero |
| 01/27/1993 | EP0524625A2 Method and apparatus for communicating compressed video using trellis coded QAM |
| 01/27/1993 | EP0524597A1 Iterative method for reducing intersymbol interference |
| 01/27/1993 | EP0524590A1 Apparatus for demodulating FSK signals, with updates each half-period |
| 01/27/1993 | EP0524560A2 Method and apparatus for updating coefficients in a complex adaptive equalizer |
| 01/27/1993 | EP0524559A2 Carrier phase recovery for an adaptive equalizer |
| 01/27/1993 | EP0524306A1 Method for the binary coding of points of a constellation used in a multicarrier modulation of the ofdm type |
| 01/26/1993 | US5182772 Method and apparatus for encoding, transmitting, receiving and de-coding information |
| 01/26/1993 | US5182760 Demodulation system for phase shift keyed modulated data transmission |
| 01/26/1993 | US5182749 Receiver for recovering data in a forward and reverse direction in time |
| 01/26/1993 | CA2003774C Carrier phase synchronizing circuit capable of recovering carrier phase synchronization at a short time |
| 01/26/1993 | CA1313267C Conversion filtering for digital signalling systems |
| 01/21/1993 | WO1993001687A1 Tone receiver comprising a switch capacitor zero crossing detector |
| 01/21/1993 | WO1993001672A1 Radio communication of digital data using minimal bandwidth |
| 01/21/1993 | WO1993001671A1 Automatic detector and selector of rs-232 or v.35 interface |
| 01/21/1993 | WO1993001667A1 Clock recovery |
| 01/20/1993 | EP0523816A2 Apparatus for transmitting streams of information bits and methods for estimating the most likely sequence sent |
| 01/20/1993 | EP0523780A2 Coherent optical telecommunication network |
| 01/20/1993 | CN1068228A System and method for calculating channel gain and noise variance of communication channel |
| 01/19/1993 | US5181209 Method for generalizing the viterbi algorithm and devices for executing the method |
| 01/13/1993 | EP0522998A2 Method for estimating the frequency offset in a quadrature receiver |
| 01/13/1993 | EP0521995A1 Transmission and reception in a hostile interference environment. |
| 01/12/1993 | US5179578 Coherent demodulator for π/4 shifted QPSK signal |
| 01/12/1993 | US5179360 Transmitting/receiving apparatus switchable between digital and analog modulation modes |
| 01/12/1993 | CA1312657C Shifted four state phase modulation synchronisation device |
| 01/07/1993 | WO1993000761A1 Apparatus for and method of adjusting signal points, equalizer gains and the like |
| 01/07/1993 | WO1992020162A3 Method and apparatus for resolving phase ambiguities in trellis coded modulated data |
| 01/07/1993 | EP0521525A2 Delay demodulation method, for DPSK, insensitive to carrier frequency offsets |
| 01/05/1993 | US5177767 Spread-spectrum communication system |
| 01/05/1993 | US5177741 Subscriber unit for wireless digital telephone system |
| 01/05/1993 | US5177734 Multirate wire line modem apparatus |
| 01/05/1993 | US5177604 Interactive television and data transmission system |
| 01/05/1993 | US5177455 Digital phase and amplitude modulator |
| 01/05/1993 | US5176712 Endoprostheses with resorption preventing means |
| 01/05/1993 | CA1312390C Method and circuitry for carrier recovery for time division multiple access radio systems |
| 01/05/1993 | CA1312389C Method and circuitry for determining symbol timing for time division multiple access radio systems |
| 01/03/1993 | WO1993001673A1 Method and system for calculating channel gain |
| 12/30/1992 | EP0520969A2 Maximum likelihood sequence estimation for a mobile digital cellular radio receiver |
| 12/30/1992 | EP0520666A1 Ultra wideband radar employing synthesized short pulses |