| 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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| 03/20/1984 | CA1164112A1 Minimal delay rate-change circuits |
| 03/20/1984 | CA1164065A1 Automatic shunt device |
| 03/20/1984 | CA1164053A1 High speed data transmitter |
| 03/14/1984 | EP0102608A2 Expansion circuit for digital signals |
| 03/13/1984 | US4437095 Selective call receiver having timed power supply |
| 03/13/1984 | US4437072 Lock detecting circuit for phase-locked loop frequency synthesizer |
| 03/13/1984 | US4437018 Audio component coupler |
| 03/13/1984 | CA1163680A1 Selective calling receiver with decoder powered according to varying clock pulses |
| 03/07/1984 | EP0102222A2 Loop transmission system and method of controlling its loop-back condition |
| 03/07/1984 | EP0102127A2 R.F. circuit arrangement |
| 03/07/1984 | EP0102059A2 Data transmission device for loop transmission system |
| 03/06/1984 | US4435848 Stripline microwave balanced mixer circuit |
| 03/06/1984 | US4435845 Automobile radio and tape cassette switching apparatus |
| 03/06/1984 | US4435844 Remote control circuit |
| 03/06/1984 | US4435843 FM Receiver for general programs and special announcements |
| 03/06/1984 | US4435841 Communications receiver having a switchable filter input stage |
| 03/06/1984 | US4435822 Coherent spread spectrum receiving apparatus |
| 03/06/1984 | US4435821 Receiver in a frequency hopping communication system |
| 03/06/1984 | US4435618 Adjacent station interference rejecting circuit |
| 03/06/1984 | CA1163326A1 Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit |
| 02/29/1984 | EP0101611A2 Transmitter-receiver module |
| 02/29/1984 | EP0101610A2 Active hybrid circuit with low power loss |
| 02/29/1984 | EP0101531A2 Microwave branching system with an auxiliary transmitter or receiver |
| 02/28/1984 | US4434509 Transistorized radio receiver combination with male power input and female power output connections |
| 02/28/1984 | US4434508 Radio receiver with audio selectivity |
| 02/28/1984 | US4434504 Channeling and decode circuit for airborne radio-telephone systems |
| 02/28/1984 | US4434499 System of numerical transmission with adaptative coding, of analogical information sampled and transformed by orthogonal transformation |
| 02/28/1984 | US4433604 Frequency domain digital encoding technique for musical signals |
| 02/21/1984 | US4433435 Arrangement for reducing the noise in a speech signal mixed with noise |
| 02/21/1984 | US4433433 Sampling pulse forming circuit for FM stereo demodulator |
| 02/21/1984 | US4433215 Solid state hybrid circuits |
| 02/21/1984 | CA1162641A1 Rf trap for a cable television trunk amplifier station |
| 02/16/1984 | WO1984000655A1 General purpose data control system |
| 02/16/1984 | WO1984000652A1 Data signalling system |
| 02/16/1984 | WO1984000651A1 General purpose data control terminal |
| 02/16/1984 | WO1984000650A1 Selective call paging and priority signalling system |
| 02/15/1984 | EP0100608A2 Time compression multiplex digital transmission system |
| 02/15/1984 | EP0055279B1 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit |
| 02/14/1984 | USRE31523 Crystalless scanning radio receiver and transmitter |
| 02/14/1984 | US4432098 Apparatus and method for transfer of information by means of a curl-free magnetic vector potential field |
| 02/14/1984 | US4432079 Synchronous/asynchronous independent single sideband acoustic telemetry |
| 02/14/1984 | US4431874 Balanced current multiplier circuit for a subscriber loop interface circuit |
| 02/14/1984 | CA1162245A1 Selective calling receiver including a voltage converter with low power consumption |
| 02/08/1984 | EP0100080A2 Voice detection filter |
| 02/08/1984 | EP0099881A1 System for maximum efficient transfer of modulated energy |
| 02/07/1984 | US4430757 Radioelectric signal trains generator and portable transmitter comprising such a generator |
| 02/07/1984 | US4430756 Oscillator control circuit |
| 02/07/1984 | US4430754 Noise reducing apparatus |
| 02/07/1984 | US4430742 Data muting method and apparatus for radio communications systems |
| 02/07/1984 | US4430736 Circuit for correcting distortions in a PCM transmission device |
| 02/07/1984 | CA1161931A1 Method and apparatus for the cancellation of interference signals from a number n of sources during the reception of return signals by a pulse radar |
| 02/02/1984 | WO1984000455A1 Equipment for wireless telephone transmission |
| 01/31/1984 | US4429418 Frequency agile satellite receiver |
| 01/31/1984 | US4429417 Integrated antenna, amplifier and converter for microwave frequencies |
| 01/31/1984 | US4429280 Apparatus and method for demodulation of a modulated curl-free magnetic vector potential field |
| 01/31/1984 | CA1161561A1 Noise reduction circuit |
| 01/31/1984 | CA1161560A1 Noise reduction circuit |
| 01/31/1984 | CA1161542A1 Method and device for processing wide-band signals having a large dynamic range |
| 01/25/1984 | EP0099113A2 Interference cancellation type space diversity system |
| 01/25/1984 | EP0099112A2 Space diversity system |
| 01/25/1984 | EP0098847A1 Emergency transmitter and operating method thereof. |
| 01/24/1984 | US4428063 Data time compression device and decompression device |
| 01/24/1984 | US4427950 Noise reduction circuit |
| 01/24/1984 | CA1161117A1 Converter circuit for television signals |
| 01/18/1984 | EP0098662A1 Infra-red receiver front end |
| 01/18/1984 | EP0098634A1 Receiver for FM-signals with transmitter status code storage |
| 01/18/1984 | EP0098626A1 Electric circuit assembly comprising a printed wiring board |
| 01/18/1984 | EP0098587A2 Housing for a radio apparatus |
| 01/17/1984 | US4426737 Circuit for generating a pumping signal for a surface elastic wave parametric device in a receiver |
| 01/17/1984 | US4426736 Programmable clock radio having nap and sleep type features |
| 01/17/1984 | US4426735 Radio receiver comprising a frequency locked loop with audio frequency feedback, and a muting circuit |
| 01/17/1984 | US4426733 Voice-controlled operator-interacting radio transceiver |
| 01/17/1984 | US4426732 Receiver having a surface elastic wave high frequency amplifier with a frequency-controlled pump oscillator |
| 01/17/1984 | US4426727 FM Noise reducing circuit |
| 01/17/1984 | CA1160710A1 Communications control device in a duplex transmission system |
| 01/17/1984 | CA1160699A1 Phase locked loop circuit |
| 01/17/1984 | CA1160574A1 Device for the processing of voice signals |
| 01/11/1984 | EP0097982A2 FM stereo apparatus |
| 01/10/1984 | US4425663 Low input capacitance data network transceiver |
| 01/10/1984 | US4425661 Data under voice communications system |
| 01/10/1984 | CA1160376A1 Voice frequency repeater and term sets and other circuits therefor |
| 01/10/1984 | CA1160308A1 Data communication system |
| 01/04/1984 | EP0097541A1 Fixed station of a frequency hopping radiocommunication system comprising transmitters with interchangeable assignment |
| 01/03/1984 | US4424593 Suppressed carrier communications system |
| 01/03/1984 | US4424591 Antenna switch for home video accessories |
| 01/03/1984 | US4424574 Function presetting circuit for an audio/video recording and reproducing system |
| 01/03/1984 | US4424499 Equalizer circuit for a repeater |
| 01/03/1984 | CA1159973A1 Pushbutton tuner |
| 01/03/1984 | CA1159903A1 Radio transmitter/receiver for digital and analog communications system |
| 12/27/1983 | US4423517 Code sequence synchronization system for spread spectrum communication receiver |
| 12/21/1983 | EP0096461A2 Microwave systems |
| 12/21/1983 | EP0096381A1 Receiver with electronically tunable tuning circuit |
| 12/20/1983 | US4422178 Radio communication receiver having an oscillator circuit of lower power-consumption |
| 12/20/1983 | US4422077 Electrical signal separating device for combined windshield antenna and heater grid |
| 12/20/1983 | CA1159142A1 Transmission system for tv signals |
| 12/13/1983 | US4420723 Phase locked loop amplifier for variable amplitude radio waves |
| 12/13/1983 | US4420658 Multiple tone signal system |
| 12/13/1983 | US4419917 Power saving device for an electronic musical instrument |
| 12/07/1983 | EP0095750A2 Battery saving circuit for a portable radio receiver |
| 12/07/1983 | EP0095685A2 Method of receiving a compressed composite signal |