| 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) |
|---|
| 03/19/1985 | CA1184129A1 Arrangement for reducing the noise in a speech signal mixed with noise |
| 03/19/1985 | CA1184128A1 Spectrum division/multiplication communication arrangement for speech signals |
| 03/14/1985 | WO1985001167A1 Connection unit for interconnecting intercorresponding electric apparatus |
| 03/12/1985 | US4504875 Information scanning circuit for use with a detachable portable _cassette tape recorder |
| 03/12/1985 | US4504805 Multi-port combiner for multi-frequency microwave signals |
| 03/12/1985 | CA1183915A1 Broad-band slot-coupled diplexer |
| 03/12/1985 | CA1183903A1 Portable radio receiver with high antenna gain |
| 03/06/1985 | EP0133730A2 Receiver circuit |
| 03/05/1985 | US4503563 Electrical device in a buoyant, watertight housing |
| 03/05/1985 | US4503513 Radio receiver system including a control unit and a remote unit |
| 03/05/1985 | CA1183621A1 Tuning apparatus of phase-locked loop type |
| 02/28/1985 | WO1985000945A1 Control signalling arrangement for a digital transmission system |
| 02/28/1985 | WO1985000944A1 Audio channel stacking with speech compression for narrow band transmission with provision for dialed calls |
| 02/28/1985 | EP0115499A4 Selective call paging and priority signalling system. |
| 02/27/1985 | EP0133500A2 Time division multiplex method for a remote control system for electrical and electronic devices |
| 02/26/1985 | US4502026 Signal distributing apparatus |
| 02/26/1985 | CA1183220A1 Radio frequency communication system utilizing radiating transmission lines |
| 02/26/1985 | CA1183218A1 Optical data transmission system |
| 02/19/1985 | US4501019 Frequency modulation transmitter |
| 02/19/1985 | US4501018 Simplex transceiver employing a common piezoelectric element for transmitting and receiving |
| 02/19/1985 | US4501017 Switch controller for obtaining a plurality of functions from a single switch in a two-way transceiver and method therefor |
| 02/19/1985 | US4501014 Method for eliminating unwanted acoustic signals in audio programs to be edited for reproduction |
| 02/19/1985 | US4501004 Device for eliminating FM or like interference from a digital microwave signal |
| 02/19/1985 | US4500869 Method for conversion of linearly encoded into non-linearly encoded digital signals |
| 02/19/1985 | US4500842 Signal processing apparatus |
| 02/19/1985 | US4500755 Electric hybrid circuits |
| 02/18/1985 | EP0116577A4 Data signalling system. |
| 02/18/1985 | EP0116064A4 General purpose data control terminal. |
| 02/14/1985 | WO1985000686A1 Apparatus and methods for coding, decoding, analyzing and synthesizing a signal |
| 02/13/1985 | EP0133107A1 Apparatus for coding and decoding a broad-band transmission |
| 02/13/1985 | EP0132933A2 Adaptive line hybrids |
| 02/13/1985 | EP0132752A2 Detector for the indication of parasitic frequency deviation peaks |
| 02/13/1985 | EP0023511B1 Process and device for detecting and interpreting a distress signal |
| 02/12/1985 | US4499605 FM-Receiver using a ratio detector with silicon diodes |
| 02/12/1985 | US4499603 Radio receiver with reception-readiness monitoring feature and method |
| 02/12/1985 | US4499602 Double conversion tuner for broadcast and cable television channels |
| 02/12/1985 | US4499426 Baseband discriminator for frequency or transform modulation |
| 02/12/1985 | US4498885 Space diversity system |
| 02/12/1985 | CA1182535A1 Synchronous receiver with analog high frequency section and digital low frequency section |
| 02/05/1985 | US4498195 Radio interference detection device for use in a multi-channel access angle-modulation radio system |
| 02/05/1985 | US4498173 Technique for digital split-channel transmission using interpolative coders and decoders |
| 02/05/1985 | US4498018 In a transformer hybrid circuit |
| 02/05/1985 | CA1182230A1 Subscriber line interface circuit |
| 02/05/1985 | CA1182196A1 Radioelectric signal trains generator and portable transmitter comprising such a generator |
| 02/05/1985 | CA1182181A1 Data muting method and apparatus for radio communications systems |
| 01/31/1985 | WO1985000481A1 Simplex transceiver employing a common piezoelectric element for transmitting and receiving |
| 01/31/1985 | WO1985000480A1 A homotropic antenna system for a portable radio |
| 01/30/1985 | EP0132406A2 Power saving system for time-division multiple access radiocommunication network |
| 01/30/1985 | EP0132272A1 Telecommunication terminal. |
| 01/30/1985 | EP0077351B1 Direct current magnetized hybrid transformer |
| 01/29/1985 | US4497067 Interference cancellation type space diversity system |
| 01/29/1985 | US4496947 Function switching system for an audio/video apparatus |
| 01/29/1985 | CA1181879A1 Electronic tuning radio receiver |
| 01/29/1985 | CA1181877A1 Successive frame digital multiplexer with increased channel capacity |
| 01/29/1985 | CA1181876A1 Method and apparatus for efficient statistical multiplexing of voice and data signals |
| 01/29/1985 | CA1181819A1 Radio communication receiver having an oscillator circuit of lower power-consumption |
| 01/29/1985 | CA1181818A1 Noise detector and signal receiver arrangement for a frequency modulated receiver |
| 01/29/1985 | CA1181816A1 In-band signalling system for fm transmission systems |
| 01/23/1985 | EP0132010A1 RF-tuning device comprising a switching mixer stage and a tuning oscillator |
| 01/23/1985 | EP0131641A1 Method of interfacing two systems with different sampling rates |
| 01/22/1985 | US4495652 Control arrangement for radio apparatus |
| 01/22/1985 | US4495651 Broadcast receiver comprising an entirely electronic control device |
| 01/22/1985 | US4495650 Electronic tuning type radio receivers |
| 01/22/1985 | US4495649 Power source device for portable type radio apparatus |
| 01/22/1985 | US4495648 Transmitter power control circuit |
| 01/17/1985 | WO1985000256A1 Squelch circuit |
| 01/16/1985 | EP0131458A1 Spread spectrum system |
| 01/16/1985 | EP0131440A1 Variable frequency RF electronic surveillance system |
| 01/16/1985 | EP0131018A1 Guard tone capture method |
| 01/15/1985 | US4494244 Step-off device for aircraft voice communication system |
| 01/15/1985 | US4494238 Multiple channel data link system |
| 01/15/1985 | US4494090 Frequency modulation system for a frequency synthesizer |
| 01/15/1985 | US4494081 Variable frequency U. H. F. local oscillator for a television receiver |
| 01/15/1985 | US4494076 Signal input circuit with controlled input signal attenuation |
| 01/15/1985 | CA1181186A1 Transformerless hybrid circuits |
| 01/15/1985 | CA1181184A1 Time compression multiplex digital transmission system |
| 01/15/1985 | CA1181168A1 Error concealment in digital television signals |
| 01/09/1985 | EP0130815A2 Noise reduction circuit and method |
| 01/09/1985 | EP0130426A1 Transmission system for a frequency-modulated audio carrier, especially a video recorder |
| 01/09/1985 | EP0130321A2 Car receiver |
| 01/08/1985 | US4493112 Antenna tuner discriminator |
| 01/08/1985 | US4493111 Electronic antenna decoupling process and device |
| 01/08/1985 | US4493091 Analog and digital signal apparatus |
| 01/08/1985 | US4492978 Transmission system for TV signals |
| 01/02/1985 | EP0130036A2 Interconnection apparatus |
| 01/02/1985 | EP0129794A2 Remote control system for electrical and electronic devices, especially for electronic consumer products |
| 01/02/1985 | CA1180391A Frequency conversion circuit |
| 01/02/1985 | CA1180390A High power multiplexer for dual polarized frequency reuse earth stations |
| 01/01/1985 | US4491980 Hearing aid coupled with a radio |
| 01/01/1985 | US4491979 Combination electronic apparatus |
| 01/01/1985 | US4491978 Portable radio receiver with high antenna gain |
| 01/01/1985 | US4491976 Wide-band tuner having a temperature-compensated microstrip resonator arrangement |
| 01/01/1985 | US4491974 Receiver having a light emitting display as frequency and tuning indicator |
| 01/01/1985 | US4491970 Portable transmitter for emergency alarm system having watertight enclosure |
| 01/01/1985 | US4491969 Satellite ground station |
| 01/01/1985 | US4491957 FM-Receiver having multipath reception detector and noise pulse suppression |
| 01/01/1985 | US4491700 Hybrid circuit in a telephone subscriber interface circuit |
| 12/27/1984 | EP0129286A1 Remote control system comprising a control member comprising a display field and position sensing means which are coupled thereto |
| 12/27/1984 | EP0129154A2 Tuning circuit for at least two frequency ranges |
| 12/27/1984 | CA1180055A Multiband tuning system for a television receiver |