Patents for H04J 11 - Orthogonal multiplex systems (25,498) |
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11/28/1989 | US4884139 Method of digital sound broadcasting in television channels with spectrum interlacing |
09/12/1989 | CA1259385A1 Cross-polarization canceler/equalizer |
08/15/1989 | US4857858 Digital demodulation system having independently operating cross-polarization cancellers |
08/01/1989 | US4853657 Orthogonal-polarization duplex send-receive microwave head |
07/11/1989 | CA1257416A1 Wireless pbx/lan system with optimum combining |
04/18/1989 | CA1252844A1 Bootstrapping cross-polarization canceler with a noise-blanking limiter |
03/22/1989 | EP0307950A2 Cross polarization interference canceller |
03/21/1989 | CA1251586A1 Ensemble modem structure for imperfect transmission media |
01/31/1989 | US4801900 Image reject apparatus for signal synthesis applications |
01/04/1989 | CN1030162A Orthogonal-polarization duplex send-receive microwave head |
12/28/1988 | EP0296175A1 Method and installation for digital communication, particularly between and toward moving vehicles. |
12/21/1988 | EP0295688A1 Microwave primary emitting-receiving duplexer-unit for orthogonaly polarised waves |
11/02/1988 | EP0289037A2 Digital demodulation system having independently operating cross-polarization cancellers |
09/13/1988 | CA1241998A1 Cross-polarization interference cancellation |
08/31/1988 | EP0279997A2 Apparatus and method for data transmission using two crossed polarisations of an electro-magnetic wave |
08/17/1988 | EP0278192A1 Method for digitally broadcasting in television channels |
06/21/1988 | CA1238370A1 Receiver unit in radio communication system |
04/27/1988 | EP0265218A2 Vector modulators and calibration thereof |
03/15/1988 | US4731816 Ensemble modem structure for imperfect transmission media |
02/25/1988 | WO1988000417A3 Method and installation for digital communication, particularly between and toward moving vehicles |
02/23/1988 | US4727534 Timing and carrier recovery in dual polarization communications systems |
02/02/1988 | US4723321 Techniques for cross-polarization cancellation in a space diversity radio system |
01/14/1988 | WO1988000417A2 Method and installation for digital communication, particularly between and toward moving vehicles |
01/05/1988 | US4717894 Calibration of vector modulators using a scalar detector |
09/01/1987 | CA1226347A1 Selective fading protection system |
07/21/1987 | CA1224541A1 Circuit for establishing accurate sample timing |
07/07/1987 | US4679227 Ensemble modem structure for imperfect transmission media |
07/07/1987 | CA1223925A1 Cross-polarization interference cancellation arrangement for digital radio channels |
06/30/1987 | US4677647 Synchronization of multichannel receiver based on higher quality channels |
04/14/1987 | US4658405 Radio communication system |
04/01/1987 | EP0216141A2 Combined cross polarization interference cancellation and intersymbol interference equalization for terrestrial digital radio systems |
03/19/1987 | DE3530546A1 Transmission method for a fast and a slow data stream |
02/17/1987 | US4644562 Combined cross polarization interference cancellation and intersymbol interference equalization for terrestrial digital radio systems |
02/17/1987 | US4644560 Intranetwork code division multiple access communication system |
01/27/1987 | US4639914 Wireless PBX/LAN system with optimum combining |
01/13/1987 | US4637067 Bootstrapping cross-polarization canceler with a noise-blanking limiter |
01/06/1987 | US4635221 Frequency multiplexed convolver communication system |
12/30/1986 | US4633484 Receiver unit in radio communication system |
12/23/1986 | US4631734 Cross-polarization canceler/equalizer |
12/16/1986 | CA1215450A1 Method of access control in a communication system |
12/04/1986 | WO1986007223A1 Ensemble modem structure for imperfect transmission media |
11/26/1986 | CN86103406A Ensemble modem structure for imperfect transmission media |
09/23/1986 | US4613975 Selective fading protection system |
08/12/1986 | US4606054 Cross-polarization interference cancellation |
06/11/1986 | EP0184383A2 A wireless PBX/LAN system with optimum combining |
06/10/1986 | CN85100039A Digital communication multiplex transmission system for level multiplex |
04/15/1986 | US4583217 Method of access control in a communication system using orthogonal functions |
03/18/1986 | US4577330 Cross-polarization interference cancellation arrangement for digital radio channels |
03/11/1986 | US4575682 Circuit for establishing accurate sample timing |
11/07/1985 | WO1985004996A1 A cross-polarization interference cancellation arrangement for digital radio channels |
08/27/1985 | CA1192681A1 Pulse interference cancelling system for spread spectrum signals |
07/16/1985 | US4529963 Code expansion generator |
07/09/1985 | CA1190317A1 Primary source with frequency re-utilization |
06/05/1985 | EP0143469A2 Receiver unit in radio communication system |
04/30/1985 | US4514853 Multiplexed noise code generator utilizing transposed codes |
04/16/1985 | US4511885 Code compressor for multilevel interleaved multiplexed noise codes |
03/26/1985 | US4507665 Primary source with frequency re-utilization |
01/29/1985 | CA1181817A1 Intermediate frequency slope compensation control arrangements |
01/02/1985 | CA1180390A High power multiplexer for dual polarized frequency reuse earth stations |
09/18/1984 | US4472815 Pulse interference cancelling system for spread spectrum signals |
09/04/1984 | CA1173912A1 Process for the demodulation of an amplitude modulated signal and demodulator performing this process |
08/14/1984 | US4466134 Intermediate frequency slope compensation control arrangements |
08/08/1984 | EP0115385A2 Radio communication system |
08/07/1984 | US4464745 High dynamic range multiplexing system |
05/22/1984 | CA1167926A1 Digital multi-level multi-phase modulation communication system |
02/29/1984 | EP0101634A2 Method for access control in a communication system |
11/15/1983 | CA1157113A1 Four-port network for separating signals |
11/02/1983 | EP0092907A1 Intermediate frequency slope compensation control arrangements |
10/25/1983 | US4412181 Process for the demodulation of an amplitude modulated signal and demodulator performing this process |
01/18/1983 | US4369519 Cross polarization compensation system |
01/05/1983 | EP0068940A1 Frequency reuse primary active antenna |
11/30/1982 | CA1136711A1 Adaptive cross-polarization interference cancellation arrangements |
08/31/1982 | US4347616 Digital multi-level multi-phase modulation communication system |
01/12/1982 | US4310813 Cross polarization compensating system |
10/07/1981 | EP0037317A1 Process for the demodulation of an amplitude-modulated signal, demodulator for carrying out this process and television system comprising such a demodulator |
09/15/1981 | US4290143 Transmission method and apparatus wherein binary data bits are converted into barker words and vice versa |
08/25/1981 | US4286283 Transcoder |
08/11/1981 | US4283795 Adaptive cross-polarization interference cancellation arrangements |
07/28/1981 | US4281409 Method and apparatus for multiplex binary data communication |
04/16/1981 | WO1981001087A1 Adaptive cross-polarization interference cancellation arrangements |
04/15/1981 | EP0026924A1 Adaptive cross-polarization interference cancellation arrangements |
08/26/1980 | CA1084592A1 System for compensating cross-polarized waves |
06/10/1980 | US4207521 System using carrier burst sequences for detecting interference signals occurring across channels of a radio link including a repeater |
04/22/1980 | CA1076248A1 Antenna system with automatic depolarization correction |
04/01/1980 | CA1074870A1 Apparatus for automatically correcting depolarization effects on electro-magnetic waves in radio-frequency connections using a double polarization |
01/08/1980 | CA1069589A1 Device for automatically correcting the depolarizing effect of electromagnetic waves |
03/27/1979 | US4146893 System for compensating for cross polarization coupling |
03/27/1979 | US4146838 System for detecting by a first pilot and a group of second pilots correlated to the first a frequency and/or phase difference between relayed carriers |
01/09/1979 | US4134071 SSMA Data transmission system |
08/08/1978 | US4105977 Adaptive undesired signal canceller |
05/16/1978 | US4090137 System for compensating cross-polarized waves to attenuate crosstalk |
11/29/1977 | US4060808 Antenna system with automatic depolarization correction |
05/31/1977 | US4027105 Control system to re-establish the orthogonality of two cross-coupled orthogonally polarized transmitted signals |
04/26/1977 | US4020288 System for data transmission through the channels of a frequency division multiplex system |
10/12/1976 | US3986123 System for the automatic correction of polarization distortion in multichannel radiocommunication station |
10/12/1976 | US3985968 Multiplex data communications using acoustical surface wave filters |
06/15/1976 | US3963990 Interference reduction circuit |
03/09/1976 | US3943285 Multiplexed data modem |