| 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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| 10/30/1979 | CA1065410A1 Fm discriminator |
| 10/23/1979 | CA1065049A1 Facsimile data compression method |
| 10/23/1979 | CA1065020A1 High reliability diversity communications system |
| 10/23/1979 | CA1065014A1 Solar power pack apparatus |
| 10/17/1979 | EP0004759A2 Methods and apparatus for encoding and constructing signals |
| 10/17/1979 | EP0004702A1 Simulcast transmission system having phase-locked remote transmitters |
| 10/16/1979 | US4171516 Tone phase shift detector |
| 10/09/1979 | US4170764 Amplitude and frequency modulation system |
| 10/09/1979 | US4170756 Versatile transceiver coupling network |
| 10/09/1979 | US4170719 Speech transmission system |
| 10/09/1979 | CA1064114A1 Frequency converter |
| 10/09/1979 | CA1064111A1 Digital click removal and squelch control circuit for an fm receiver |
| 10/04/1979 | WO1979000718A1 Amplitude and frequency modulation system |
| 10/03/1979 | EP0004418A2 Circuit for inhibiting the operation of a noise blanker circuit |
| 10/02/1979 | CA1063715A1 Undesired signal canceller |
| 10/02/1979 | CA1063679A1 Program apparatus for radio receiver using frequency synthesizer |
| 09/25/1979 | CA1063186A1 Recursive detector-oscillator circuit |
| 09/25/1979 | CA1063179A1 Radio receiver having a preselection circuit tuned by a varactor |
| 09/19/1979 | EP0004046A1 Apparatus for amplitude and frequency modulating a signal |
| 09/18/1979 | US4168511 Common amplification system for video and audio frequency signals |
| 09/18/1979 | US4168487 Code detection circuit |
| 09/18/1979 | CA1062779A1 Detector for am-fm signals |
| 09/11/1979 | US4167705 Circuit for controlling the response conditions of a radio receiver |
| 09/11/1979 | US4167703 Tuning apparatus with band-selection means |
| 09/11/1979 | US4167650 Stereo signal demodulating circuits |
| 09/11/1979 | CA1062337A1 Single oscillator microwave transceiver |
| 09/11/1979 | CA1061991A1 Detachable mounting clip arrangement for miniature portable apparatus or the like |
| 09/05/1979 | EP0003848A1 Digital signal transmission system |
| 09/04/1979 | US4166978 Two-way voice controlled communication system |
| 09/04/1979 | US4166925 FM stereo demodulator |
| 08/28/1979 | CA1061484A2 Active hybrid circuit |
| 08/28/1979 | CA1061469A1 Signal correlator |
| 08/28/1979 | CA1061443A1 High frequency electrical shield assembly |
| 08/28/1979 | CA1061255A1 Real time amplitude control of electrical waves |
| 08/23/1979 | WO1979000570A1 Electronically tuned radio receiver |
| 08/23/1979 | WO1979000564A1 Delay circuit |
| 08/22/1979 | EP0003634A1 Method of aligning a radio receiver and means for indicating the alignment of a radio receiver |
| 08/21/1979 | US4165493 Protected amplifier apparatus |
| 08/21/1979 | US4165486 Single sideband transceiver |
| 08/21/1979 | US4165458 Signal decision system |
| 08/21/1979 | CA1061005A1 Data communications |
| 08/21/1979 | CA1060956A1 Yig tuned mixer |
| 08/21/1979 | CA1060955A1 Automatic gain control means for a single sideband radio receiver |
| 08/14/1979 | US4164710 Very high frequency tuner for eliminating image interference and stray capacitance effects |
| 08/14/1979 | US4164709 Signal priority device |
| 08/14/1979 | US4164628 Processor for multiple, continuous, spread spectrum signals |
| 08/14/1979 | US4164624 Demodulation circuits of FM stereophonic receivers |
| 08/14/1979 | CA1060547A1 Receiver in a transmission system for binary pulse signals, comprising a circuit for automatic correction of dc level disturbances |
| 08/09/1979 | WO1979000544A1 Manually oerated tuning means |
| 08/07/1979 | US4163945 System for removing interference distortion in the demodulated signal of a frequency-modulated signal |
| 08/07/1979 | US4163943 Radio receiver employing premixing and digital display |
| 08/07/1979 | US4163878 Electronic hybrid and hybrid repeater with bridge circuit |
| 08/07/1979 | CA1060113A1 Monitoring system for vehicles |
| 08/07/1979 | CA1060101A1 Fm demodulator having squelch circuit using bucket brigade delay line |
| 07/31/1979 | US4163264 Noise improvement by capacitor bank in magnetic recording and playback apparatus |
| 07/31/1979 | CA1059665A1 Receiver including a tuning circuit having a transmitter search device |
| 07/31/1979 | CA1059637A1 Apparatus for cross-array correlation and compression coding between two-dimensional matrices derived from two-valued picture points |
| 07/24/1979 | US4162462 Noise reduction system |
| 07/24/1979 | US4162447 Frequency synthesis method for an AM-SSB transmitter-receiver |
| 07/24/1979 | US4162446 Transceiver with only one reference frequency |
| 07/17/1979 | US4161716 Very low frequency sonobuoy (VLF sonobuoy) |
| 07/17/1979 | US4161697 Automatically clarifying radio receiver |
| 07/17/1979 | US4161695 Transmission and reception control circuit for a transceiver |
| 07/17/1979 | US4161633 Subscriber line/trunk circuit |
| 07/17/1979 | CA1058747A1 Input circuit of vhf television set tuner |
| 07/17/1979 | CA1058434A1 Combined binocular radio unit |
| 07/11/1979 | EP0002998A1 Method and system for speech data compression |
| 07/10/1979 | US4160960 Power-dividing and modulating arrangement |
| 07/10/1979 | US4160955 Compatible AM-FM frequency discriminator |
| 07/03/1979 | US4160212 Radio frequency receiver having serially coupled heterodyning stages, each stage having filters with difference center frequencies |
| 07/03/1979 | US4160210 Printed circuit impedance transformation network with an integral spark gap |
| 07/03/1979 | CA1057666A2 Signal compression/expansion apparatus |
| 06/27/1979 | EP0002640A1 Receiver input stage protected against noise signals and receiver using such a stage |
| 06/27/1979 | EP0002595A1 Transponders |
| 06/27/1979 | EP0002435A1 Remote control for controlling and switching variable and fixed functions and parameters in telecommunication equipment |
| 06/27/1979 | EP0002434A1 Remote control for the controlling and switching and the commuting of functions and of control magnitudes in telecommunication equipment |
| 06/26/1979 | US4159470 Data communications systems employing redundant series transmission loops |
| 06/26/1979 | CA1057394A1 Adapter for use in transcribers |
| 06/19/1979 | USRE30037 Data communications network remote test and control system |
| 06/19/1979 | US4158861 Facsimile communication system and method |
| 06/19/1979 | US4158817 Microwave input circuit with parametric down converter |
| 06/19/1979 | US4158814 Automatic overload protection system |
| 06/19/1979 | US4158813 Combined microphone and accessory device |
| 06/19/1979 | US4158812 Radio transmitter with intermixed controls |
| 06/19/1979 | US4158781 Transmit receive solid state switch for electroacoustic transducers |
| 06/19/1979 | CA1056966A1 Method for establishing the code-phase coincidence in an ssma receiver |
| 06/19/1979 | CA1056918A2 Multiple zone communication system and method |
| 06/12/1979 | US4158173 Mercury switch activated radio |
| 06/12/1979 | US4158148 Latching detector circuit |
| 06/12/1979 | CA1056466A1 Frequency synthesizer receiver having memory for storing frequency data |
| 06/05/1979 | US4157567 Dropout detecting circuitry for a frequency modulated carrier, particularly for a video recorder |
| 06/05/1979 | US4157505 Plural band scanning radio with direct switch of RF amplifying transistors |
| 06/05/1979 | US4157455 FM stereophonic receiver having muting and mode changing |
| 06/05/1979 | CA1056016A1 Combined encoder-decoder apparatus having a single active filter |
| 05/29/1979 | US4156880 Method for transmitting a facsimile signal by sequential edge differential coding |
| 05/29/1979 | US4156849 Display device in electrical equipment |
| 05/29/1979 | CA1055577A1 Radio frequency protection circuit |
| 05/22/1979 | US4156255 Television receiver with synchronous detection and automatic fine tuning |
| 05/22/1979 | US4156212 Combiner system |
| 05/22/1979 | US4156196 Memory scanning radio receiver with separate channel data selection |