| 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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| 06/30/1992 | US5127021 Spread spectrum television transmission |
| 06/30/1992 | US5127020 Bias control device |
| 06/30/1992 | US5126871 Method and apparatus for redundant communication of optical signals with distortion cancellation |
| 06/30/1992 | US5126848 Circuit for preventing the interference of TV channel 6 broadcast |
| 06/30/1992 | US5126703 Signal attenuator |
| 06/30/1992 | US5126681 In-wire selective active cancellation system |
| 06/30/1992 | US5126677 Apparatus and method for preventing spurious signals to the radio frequency monitor used for early warning of impending failure in electric generators and other equipment |
| 06/25/1992 | WO1992010892A1 Synchronous spread-spectrum communications system and method |
| 06/25/1992 | WO1992010891A1 Spread spectrum cdma communications system |
| 06/25/1992 | WO1992010882A1 Seamless frequency hopping system |
| 06/25/1992 | WO1992010881A1 Single frequency ring around transceiver |
| 06/24/1992 | EP0471799A4 Time domain radio transmission system |
| 06/24/1992 | CN1062248A Audio levet equalization of broadcast fm and narrow frequency deviation fm radio signals |
| 06/23/1992 | US5125110 Microstripline microwave mixer using waveguide filter |
| 06/23/1992 | US5125108 Interference cancellation system for interference signals received with differing phases |
| 06/23/1992 | US5125106 Switching control apparatus for tuning system |
| 06/23/1992 | US5125105 High-quality reception indicating circuit for fm receivers |
| 06/23/1992 | US5125010 Lap counting system |
| 06/23/1992 | US5124665 Circuit for reducing distortion produced by an r.f. power amplifier |
| 06/23/1992 | US5124523 Process for adapting the frequency band of an oscillating circuit made from a metal-plastic-metal sandwich foil useful as an identification label, and sandwich foil for implementing the process |
| 06/23/1992 | EP0667019A4 Hand-held data capture system with interchangeable modules. |
| 06/22/1992 | WO1992011722A1 Method and apparatus for cancelling spread-spectrum noise |
| 06/22/1992 | WO1992011704A1 Apparatus and method for generating quadrature signals |
| 06/21/1992 | WO1992011708A1 Apparatus and method for equalizing a corrupted signal in a receiver |
| 06/21/1992 | WO1992011705A1 Power control circuitry for a tdma radio frequency transmitter |
| 06/21/1992 | WO1992011703A1 Apparatus and method of dc offset correction for a receiver |
| 06/21/1992 | CA2097694A1 Apparatus and method for equalizing a corrupted signal in a receiver |
| 06/18/1992 | WO1992011702A1 Dynamically biased amplifier |
| 06/17/1992 | EP0490537A2 HDTV receiver |
| 06/17/1992 | EP0490441A2 A method of operating a communications system, a communications system and a secondary station for use in the system |
| 06/17/1992 | EP0489838A1 Battery saver for a tdm system |
| 06/17/1992 | EP0489751A1 Improved low power dsp squelch |
| 06/17/1992 | CN2107738U Wireless remote receiver |
| 06/17/1992 | CN2107737U Special power supply device for radio station |
| 06/17/1992 | CN1017115B Cable television spread spectrum data transmission |
| 06/16/1992 | US5123043 Radio communication method and system |
| 06/16/1992 | US5123029 Broadcast-initiated bipartite frame multi-access protocol |
| 06/16/1992 | US5123008 Single frequency time division duplex transceiver |
| 06/16/1992 | US5122877 Method of transmitting a digital video signal and a receiver for use in the method |
| 06/16/1992 | US5122809 Microwave electric power receiver |
| 06/16/1992 | CA1303686C2 Subscriber unit for wireless digital telephone system |
| 06/15/1992 | WO1992010880A1 Multi-dimensional data processing and display |
| 06/11/1992 | WO1992010043A1 Method for resetting the local oscillators of a receiver and device for implementing such method |
| 06/11/1992 | WO1992010039A1 Process and arrangement for compensating adjacent channel interference in a double sideband amplitude modulation system |
| 06/11/1992 | DE4038405A1 Verfahren und schaltungsanordnung zum aussieben des unteren einen oder des oberen anderen seitenbands einer auszuwertenden zweiseitenbandschwingung aus einem gemisch mehrerer sich gegenseitig stoerender zweiseitenbandschwingungen in fernmeldeanlagen, insbesondere in kurzwellen-vielkanal-funkfernsprechanlagen und in kurzwellen-rundfunkanlagen Method and circuit arrangement for sifting the lower one or the upper other side bands of the double-sideband oscillation from a mixture of several mutually thereâ double sideband harmonics in telecommunication systems, especially in short-wave much-channel radio remote intercom systems and short-wave broadcasting systems |
| 06/10/1992 | EP0489543A2 Telephone network speech signal enhancement |
| 06/10/1992 | EP0489281A2 Arrangement for signal processing in the modulation path to a transmitter |
| 06/10/1992 | EP0489223A2 Method for clock rate conversion of a digital signal |
| 06/10/1992 | EP0489081A1 Gain/phase compensation for linear amplifier feedback loop |
| 06/10/1992 | EP0489013A1 Radio and electronic card assembly. |
| 06/10/1992 | CN2107086U Wireless calling system |
| 06/10/1992 | CN2107085U Broad band spectrum multiplexing feeder apparatus |
| 06/10/1992 | CN1061877A Numerically controlled non-interrupted operating circuit for broadcasting transmitter |
| 06/10/1992 | CN1061873A Battery housing assembly with integral limited travel guide rails |
| 06/09/1992 | US5121504 Mobile radio telephone device with a detachable adapter for external power and antenna connection |
| 06/09/1992 | US5121408 Synchronization for entry to a network in a frequency hopping communication system |
| 06/09/1992 | US5121407 Spread spectrum communications system |
| 06/09/1992 | US5121288 Capacitive power supply |
| 06/09/1992 | US5121212 Audio signal demodulating circuit with reduced power consumption |
| 06/09/1992 | US5121081 Output waveform control circuit |
| 06/09/1992 | US5120997 Spread spection signal detector |
| 06/09/1992 | CA1302901C Removable audio-visual apparatus |
| 06/04/1992 | DE4124059A1 Noise-free information transmission system - uses compressed signal sections as first component of three component signal |
| 06/03/1992 | EP0488739A1 Multi-channel digital receiver for global positioning system |
| 06/03/1992 | EP0488610A2 Communication line backup system |
| 06/03/1992 | EP0488476A2 Radio transceiver |
| 06/03/1992 | EP0488006A1 Television receiver for microwave reception |
| 06/03/1992 | EP0487548A1 Synthesized selective call receiver having variable characteristics. |
| 06/03/1992 | EP0454694A4 Reactance buffered loop antenna and method for making the same |
| 06/03/1992 | EP0400001A4 Multipath reduction system |
| 06/03/1992 | CN2106449U Float carrier amplitude modulation device |
| 06/02/1992 | US5119509 Low noise block down converter (LNB) for the simultaneous receipt of C/Ku-band satellite-broadcasting |
| 06/02/1992 | US5119396 Binary phase shift keying modulation system |
| 06/02/1992 | US5119198 Gain control device for minimizing parasitic electromagnetic radiation in a video monitor |
| 06/02/1992 | US5119072 Apparatus for monitoring child activity |
| 06/02/1992 | US5118309 Minimum wire interface for multiple accessories |
| 06/02/1992 | CA1302502C Rotatable contactless antenna coupler and antenna |
| 05/31/1992 | WO1992010004A1 Battery housing assembly with integral limited travel guide rails |
| 05/31/1992 | CA2073777A1 Method for resetting the local oscillators of a receiver and device using said method |
| 05/29/1992 | WO1992009175A1 Method and apparatus for modulating and dectecting a subcarrier signal for an inductively coupled transponder |
| 05/29/1992 | WO1992009154A1 A radio transceiver system |
| 05/29/1992 | WO1992009146A1 Battery saver for a communication device |
| 05/29/1992 | WO1992009145A1 Method of operating a car radio |
| 05/27/1992 | WO1992010042A1 Method and apparatus for paging in a communication system |
| 05/27/1992 | EP0487484A1 Improvement to the controls of vehicle audio/video apparatuses |
| 05/27/1992 | EP0486834A1 Multi-access method and mobile radiocommunication system implementing said multi-access method |
| 05/27/1992 | EP0486833A1 Receiver for DS-SS-signal |
| 05/27/1992 | EP0486667A1 Communication signal having a time domain pilot component |
| 05/27/1992 | EP0486494A1 A tdm quasi-duplex system |
| 05/27/1992 | CN2105806U Antenna remote control turning and signal compound device |
| 05/27/1992 | CN2105805U Audio frequency radio earphone |
| 05/26/1992 | US5117505 Interference cancellation system having noise reduction features and method |
| 05/26/1992 | US5117504 Communications device with adjustment for temperature dependent signal delays |
| 05/26/1992 | US5117500 Multi system decoding receiver |
| 05/26/1992 | CA1301849C Power saving arrangement and power saving method |
| 05/26/1992 | CA1301848C Battery saver circuit for a frequency synthesizer |
| 05/20/1992 | EP0486181A2 Mobile radio telephone |
| 05/20/1992 | EP0486095A1 Digital receiver |
| 05/20/1992 | EP0486087A2 Apparatus for receiving and transmitting RF signals |
| 05/20/1992 | EP0485935A1 Signal processing circuit for the european digital cellular radio-telephone system |