| 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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| 03/25/1986 | US4578816 Method of synchronization of transmitter-receiver stations of a frequency-jumping network and a station for the practical application of said method |
| 03/25/1986 | CA1202405A1 Transmission line changeover switch |
| 03/25/1986 | CA1202382A1 Hybrid circuit |
| 03/25/1986 | CA1202381A1 High frequency signal switching device |
| 03/25/1986 | CA1202369A1 Transceiver |
| 03/18/1986 | US4577342 Distortion cancel circuit in FM stereo |
| 03/18/1986 | US4577328 Method and circuit for detecting a training signal |
| 03/18/1986 | US4577315 Power saving system for time-division multiple access radiocommunication network |
| 03/18/1986 | US4577228 Transversal filter incorporating MOS-transistor amplifiers |
| 03/18/1986 | US4577171 Input circuit comprising at least two input paths |
| 03/18/1986 | US4577170 Variable tuning filter in high frequency circuit |
| 03/18/1986 | US4577161 Noise reduction by linear interpolation using a dual function amplifier circuit |
| 03/18/1986 | US4577157 Zero IF receiver AM/FM/PM demodulator using sampling techniques |
| 03/18/1986 | CA1202108A1 Moisture and dust seal arrangement for a portable radio or the like |
| 03/18/1986 | CA1202105A1 Passive electromagnetic wave duplexer comprising a semiconductor |
| 03/18/1986 | CA1202093A1 Signal coupling apparatus |
| 03/18/1986 | CA1202085A1 Random frequency offsetting apparatus for multi- transmitter simulcast radio communications systems |
| 03/18/1986 | CA1202082A1 Simplex transceiver employing a common piezoelectric element for transmitting and receiving |
| 03/13/1986 | WO1986001669A1 Movable apparatus for sound wiring and/or visualization |
| 03/11/1986 | US4575861 Quadrature multiplexed post correlation IF channel |
| 03/11/1986 | US4575761 AFT arrangement for a double conversion tuner |
| 03/05/1986 | EP0098847B1 Emergency transmitter and operating method thereof |
| 03/04/1986 | US4574392 Arrangement for the transmission of speech according to the channel vocoder principle |
| 03/04/1986 | US4574390 Noise reduction for stereophonic FM signals by high-speed sampling and linear interpolation |
| 03/04/1986 | US4574389 Stereophonic receiver having a noise reduction control circuit |
| 03/04/1986 | US4574288 Passive electromagnetic wave duplexer for millimetric antenna |
| 03/04/1986 | US4574276 Indicating system |
| 03/04/1986 | CA1201388A1 Improvements in audio compressors and expanders |
| 02/26/1986 | EP0172704A2 Battery-powered radio communication apparatus capable of prolonging the communicable state thereof |
| 02/26/1986 | EP0172590A1 Noise detector |
| 02/25/1986 | US4573212 Integrated receiver antenna device |
| 02/25/1986 | US4573209 Fixed station of a radiocommunications system with frequency jumps and two-way transmitters |
| 02/25/1986 | US4573208 Compressed single side band communications system and method |
| 02/25/1986 | US4573168 Balanced bidirectional or party line transceiver accommodating common-mode offset voltage |
| 02/25/1986 | CA1201178A1 Method of preparing electrical signals by means of a digital filtering device |
| 02/25/1986 | CA1201171A1 Frequency modulation transmitter |
| 02/25/1986 | CA1201070A1 Adaptive signal weighting system |
| 02/19/1986 | EP0172042A1 Device for limiting the transmitting power of radio-wave transmitters |
| 02/19/1986 | EP0171997A1 Duplex microwave equipment with a single microwave oscillator |
| 02/19/1986 | EP0171778A2 Method for the transmission of communications using frequency shift keying |
| 02/18/1986 | US4571740 Recreation apparatus |
| 02/18/1986 | CA1200868A1 Circuit for boosting digital data signals transmitted on a transmission line |
| 02/18/1986 | CA1200851A1 Receiver including fet frequency mixer |
| 02/18/1986 | CA1200850A1 Device for eliminating fm or like interference from a digital microwave signal |
| 02/18/1986 | CA1200849A1 Method of, and a receiver for, demodulating a double sideband amplitude modulated signal in a quasi- synchronous area coverage scheme utilising sideband diversity |
| 02/13/1986 | WO1986001057A1 Adaptive antenna array |
| 02/12/1986 | EP0171279A2 High frequency electrical network |
| 02/12/1986 | EP0171071A2 Radio communication system comprising a portable unit carrying out a battery saving operation related to a scanning operation of a fixed unit |
| 02/11/1986 | US4570265 Random frequency offsetting apparatus for multi-transmitter simulcast radio communications systems |
| 02/11/1986 | US4569465 Stereo sport belt |
| 02/05/1986 | EP0170321A1 Noise detector |
| 02/04/1986 | US4569085 Oscillator control circuit in an F.M. receiver |
| 02/04/1986 | US4569075 Method of coding voice signals and device using said method |
| 02/04/1986 | US4568838 Control circuit for a semiconductor element with a control electrode |
| 02/04/1986 | CA1200208A1 Directable microphone system |
| 01/30/1986 | WO1986000769A1 Self-calibrating signal strength detector |
| 01/29/1986 | EP0169713A2 Duplex communications |
| 01/29/1986 | EP0169520A2 Spread spectrum signal receiver |
| 01/29/1986 | EP0169389A1 Method for transmitting two independent kinds of information, and system for carrying out said method |
| 01/28/1986 | US4567588 Synchronization system for use in direct sequence spread spectrum signal receiver |
| 01/28/1986 | US4567331 Electronic hybrid having synthesized impedance circuitry |
| 01/28/1986 | CA1199874A1 System for maximum efficient transfer of modulated audio frequency energy |
| 01/21/1986 | US4566132 Multifunction ultra-high frequency circuit and means using such a circuit |
| 01/21/1986 | US4566034 Remote control transmitter arrangement for one or more television devices |
| 01/21/1986 | CA1199682A1 Frequency hopped single sideband mobile radio system |
| 01/21/1986 | CA1199588A1 Signal conditioning system |
| 01/16/1986 | WO1986000486A1 Radiotelephone transmission power control |
| 01/16/1986 | WO1986000481A1 Radio communications system |
| 01/16/1986 | WO1986000480A1 Adaptive hybrid circuit |
| 01/15/1986 | EP0167582A1 Antenna/mixer construction for microwave radar detectors |
| 01/14/1986 | US4564822 TV Tuner oscillator with feedback for more low frequency power |
| 01/14/1986 | CA1199402A1 Vehicle-mounted antenna with adjustable-length capabilities |
| 01/14/1986 | CA1199370A1 Integrated rf receiver/waveguide |
| 01/08/1986 | EP0167331A2 Signal transmission apparatus |
| 01/08/1986 | EP0167234A1 An adaptive hybrid |
| 01/08/1986 | EP0167031A2 Case for an electronic emitting and receiving device |
| 01/08/1986 | EP0166862A1 Electric signal transmitting device particularly in the long-wave range |
| 01/08/1986 | EP0166806A2 A cosine signal corrector |
| 01/07/1986 | US4563775 Apparatus for controlling transmission output power |
| 01/03/1986 | WO1986000133A1 Adaptive speech detector system |
| 01/02/1986 | EP0166626A2 Frequency conversion apparatus |
| 01/02/1986 | EP0166551A1 Improvements in multicoupler systems |
| 12/31/1985 | US4562595 Front panel for electronic device such as an automotive radio and method for installing same |
| 12/31/1985 | US4562571 Speech processing device for radioelectric equipment adapted for speech transmission and reception |
| 12/31/1985 | US4562472 Double conversion tuner with split IF output |
| 12/31/1985 | US4562404 FM Demodulator with selective phase shift circuits |
| 12/31/1985 | US4562307 Transmitter-receiver station having low power consumption for a two-way communication link |
| 12/31/1985 | CA1198844A1 Electronic external line repeater |
| 12/31/1985 | CA1198782A1 Miniaturized antenna duplexer using saw filter |
| 12/31/1985 | CA1198781A1 Multifunction ultra-high frequency circuit and means using such a circuit |
| 12/31/1985 | CA1198778A1 Radio transmitter/receivers |
| 12/30/1985 | EP0165265A4 Duplex communication transceiver with modulation cancellation. |
| 12/27/1985 | EP0165488A2 Method for transmitting television pictures |
| 12/27/1985 | EP0165265A1 Duplex communication transceiver with modulation cancellation |
| 12/24/1985 | US4561114 Cochannel interference measurement system |
| 12/24/1985 | US4561113 Distortion canceller for FM receiver |
| 12/24/1985 | US4561112 Broadcast receiver with automatic broadcast station storage |
| 12/24/1985 | US4561111 Method of predistorting a single sideband system |
| 12/24/1985 | US4561089 Correlation detectors for use in direct sequence spread spectrum signal receiver |
| 12/24/1985 | US4561068 Arrangement for the suppression of signal interference |