| Patents for H04B 1 - Details of transmission systems, not covered by a single one of groups; Details of transmission systems not characterised by the medium used for transmission (188,568) |
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| 09/25/1985 | EP0155728A2 Frequency synthesised multichannel radio apparatus |
| 09/25/1985 | EP0155571A2 Device for optimally matching a hybrid circuit with a telecommunication line |
| 09/25/1985 | EP0155570A2 Method for matcing a hybrid circuit to a telecommunication line, its application and device for carrying it out |
| 09/25/1985 | EP0155569A2 Device for matching a bidirectional amplifying circuit arranged in a transmission line with the transmission line |
| 09/25/1985 | EP0155285A1 Audio channel stacking with speech compression for narrow band transmission with provision for dialed calls. |
| 09/24/1985 | CA1194204A1 Car radio provided with devices allowing the remote control thereof |
| 09/24/1985 | CA1194130A1 Compressed single side band communications system and method |
| 09/24/1985 | CA1194128A1 Satellite ground station |
| 09/24/1985 | CA1194115A1 Electromagnetic signal receiver and processor for providing frequency data of received signals |
| 09/18/1985 | EP0155053A2 Remote control equipment for use with an audio system |
| 09/18/1985 | EP0155049A1 Transmission system for the transmission of data signals in a modulation band |
| 09/18/1985 | EP0155048A1 Data transmission system |
| 09/17/1985 | US4542532 Dual-antenna transceiver |
| 09/17/1985 | US4542531 Radio transmitter/receivers with non interferring local oscillator frequency |
| 09/17/1985 | US4542496 Loop transmission system and method of controlling the loop-back condition thereof |
| 09/17/1985 | US4542300 High frequency signal switching device |
| 09/17/1985 | CA1193771A1 Tuning circuit incorporating a frequency synthesizer circuit |
| 09/17/1985 | CA1193670A1 Pulse interference cancelling system for spread spectrum signals utilizing active coherent detection |
| 09/17/1985 | CA1193669A1 Cw interference cancelling system for spread spectrum signals utilizing active coherent detection |
| 09/17/1985 | CA1193668A1 Method of and apparatus for interception-protected frequency-band-compressed transmission of speech signals |
| 09/11/1985 | EP0154563A2 Dual-antenna transceiver |
| 09/11/1985 | EP0154288A2 Method of transmitting terminating call signals within a restricted duration and a base station and a portable unit for use in the same |
| 09/11/1985 | EP0153986A1 A signum signal generator |
| 09/10/1985 | US4541122 Receiver including FET frequency mixer |
| 09/10/1985 | US4541121 Changeover device for selecting one modulator out of two and connecting it into a transmitter |
| 09/10/1985 | US4541120 Transmitter-receiver module |
| 09/10/1985 | US4541119 Portable broadcast band information transmitting system |
| 09/10/1985 | US4541118 For transmitting a message |
| 09/10/1985 | US4541110 Circuit for automatic selection between speech and music sound signals |
| 09/10/1985 | US4540854 Subscriber line interface circuit |
| 09/10/1985 | CA1193320A1 Device for detecting the optimum anode load impedance of a tube transmitter in a high frequency transmission chain |
| 09/04/1985 | EP0153466A1 Wireless communication system |
| 09/03/1985 | US4539712 Delay circuit |
| 09/03/1985 | US4539708 Ear radio |
| 09/03/1985 | US4539707 Compressed single side band communications system and method |
| 09/03/1985 | US4539697 FM Stereo demodulating circuit |
| 09/03/1985 | US4539566 Automatic interference canceling apparatus |
| 09/03/1985 | US4539526 Adaptive signal weighting system |
| 09/03/1985 | US4539443 Direct current magnetized hybrid transformer |
| 09/03/1985 | CA1193014A1 Direct digital to digital sampling rate conversion method and apparatus |
| 08/28/1985 | EP0152430A1 Apparatus and methods for coding, decoding, analyzing and synthesizing a signal. |
| 08/27/1985 | US4538281 In a direct sequence spread spectrum communication system |
| 08/27/1985 | US4538280 Coherent spread spectrum pseudonoise tracking loop |
| 08/27/1985 | US4538234 Adaptive predictive processing system |
| 08/27/1985 | CA1192681A1 Pulse interference cancelling system for spread spectrum signals |
| 08/27/1985 | CA1192643A1 Wideband transceiver with emi suppression |
| 08/21/1985 | EP0151730A1 Radio frequency receiving apparatus |
| 08/21/1985 | EP0151616A1 Control signalling arrangement for a digital transmission system. |
| 08/20/1985 | US4536886 LPC pole encoding using reduced spectral shaping polynomial |
| 08/20/1985 | US4536846 Distortion reducer for companded analog systems |
| 08/20/1985 | US4535870 Quick attach-detach mechanism for audio components |
| 08/20/1985 | CA1192297A1 Device for radio or cable sequential transmission between a central control system and data acquisition apparatus |
| 08/20/1985 | CA1192270A1 Method and circuit for detecting a training signal |
| 08/14/1985 | EP0151281A1 Time-multiplex digital cellular radio system |
| 08/14/1985 | EP0151280A1 Time division multiplex method for a digital cellular radio system |
| 08/14/1985 | EP0151279A1 Receiver for a time-multiplex cellular radio system |
| 08/13/1985 | US4535476 Offset geometry, interference canceling receiver |
| 08/13/1985 | US4535472 Adaptive bit allocator |
| 08/13/1985 | US4535471 Compression/expansion device |
| 08/13/1985 | US4535460 Method and apparatus to filter pulsed RF signals |
| 08/13/1985 | US4535286 Radio frequency receiver |
| 08/13/1985 | CA1191905A1 Spread spectrum modem |
| 08/07/1985 | EP0151014A2 Radio transceiver including an antenna switching circuit |
| 08/06/1985 | US4534054 Signaling system for FM transmission systems |
| 08/06/1985 | US4533880 Tuning circuit with frequency synthesizer using d/a converter |
| 08/06/1985 | US4533837 Keyboard-equipped apparatus such as an electronic calculator with battery throw means for enabling a power supply circuit |
| 08/06/1985 | CA1191562A1 Adjustable coring circuit permitting coring extinction |
| 07/24/1985 | EP0149533A2 Apparatus for receiving super high frequency signals |
| 07/24/1985 | EP0148920A1 A homotropic antenna system for a portable radio |
| 07/24/1985 | EP0148879A1 Squelch circuit. |
| 07/23/1985 | US4531237 Energy conservation circuit for standby operation |
| 07/23/1985 | US4531234 Optimizing antenna interface for automobile radio receivers |
| 07/23/1985 | US4531208 Apparatus and method for reducing telephone channel power loading |
| 07/23/1985 | US4531117 Variable frequency RF electronic surveillance system |
| 07/18/1985 | WO1985003170A1 Antenna/mixer construction for microwave radar detectors |
| 07/17/1985 | EP0148651A1 Low-energy consumption transmitter-receiver for a two-way link |
| 07/17/1985 | EP0148265A1 Simplex transceiver employing a common piezoelectric element for transmitting and receiving |
| 07/16/1985 | US4530103 Method and apparatus for baseband tracking of a PN code sequence in a spread spectrum receiver |
| 07/16/1985 | US4530085 Reconfiguration control method for a loop-type data network |
| 07/16/1985 | CA1190601A1 Radio receiver with reception-readiness monitoring feature, and method |
| 07/10/1985 | EP0148016A2 Interference wave detection circuit for use in radio receiver |
| 07/10/1985 | EP0147869A2 Electronic circuit capable of keeping a frequency stable during presence of a burst |
| 07/09/1985 | US4528674 Method and apparatus for baseband generation of a spread spectrum reference signal for use in an LMS adaptive array processor |
| 07/09/1985 | US4528522 FM Transceiver frequency synthesizer |
| 07/09/1985 | CA1190323A1 Adaptive predictive processing system |
| 07/03/1985 | EP0147120A2 A zero if demodulator and method of demodulation |
| 07/02/1985 | US4527280 Frequency synthesizing type electronic tuner |
| 07/02/1985 | US4527204 Remote control system |
| 07/02/1985 | US4527136 Signal coupling apparatus |
| 07/02/1985 | US4527129 Klystron tuning control system |
| 07/02/1985 | CA1189915A1 Swallow counter for a frequency synthesizer |
| 07/02/1985 | CA1189909A1 Transform modulation system |
| 07/02/1985 | CA1189908A1 Multiple tone pilot signal system |
| 07/01/1985 | EP0094420A4 Data muting method and apparatus for radio communications systems. |
| 06/26/1985 | EP0146195A2 FM stereo receiver |
| 06/26/1985 | EP0145983A2 Digital radio relay equipment and method |
| 06/26/1985 | EP0070287B1 High frequency communications |
| 06/25/1985 | US4525868 Interference wave detection circuit for use in radio receiver |
| 06/25/1985 | US4525863 Solid state transmit/receive switch |
| 06/25/1985 | US4525862 Transmission system |