| 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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| 03/03/1993 | EP0529183A2 Car radio |
| 03/03/1993 | EP0529051A1 Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system |
| 03/03/1993 | CN2127812Y Small integrated frequency-modulated wireless intercom |
| 03/03/1993 | CN1069605A Micro-system for audio frequency transmitting and receiving |
| 03/03/1993 | CN1020032C Circuit arrangement for switching of RF signals |
| 03/02/1993 | US5191598 System for reducing the affects of signal fading on received signals |
| 03/02/1993 | US5191515 Structure which fastens an LCD holder and a volume control unit |
| 03/02/1993 | US5191423 TV channel selecting device with a memory |
| 03/02/1993 | US5190461 Connector assembly with both functions of coaxial connector and multiple contact connector |
| 03/02/1993 | CA1314079C Time shared very small aperture satellite terminals |
| 03/02/1993 | CA1314075C Signal distinction circuit |
| 03/01/1993 | CA2075250A1 Portable radiotelephone support assembly |
| 02/27/1993 | CA2076799A1 Ultra-widebandwidth compressive receiver |
| 02/25/1993 | DE4128167A1 Control of channel switching in frequency-hopping radio - preparing transmitter or receiver for frequency switching before termination of current frame at selected frequency |
| 02/25/1993 | DE4128045A1 Noise suppression for stereo radio - compresses lower and upper side bands of differential signal in stereo transmitter |
| 02/24/1993 | EP0528689A2 Detector |
| 02/24/1993 | EP0527998A1 A method and a device for controlling a radio transmitter. |
| 02/24/1993 | EP0511968A4 Interference filter for tvro receiver systems |
| 02/24/1993 | EP0484476A4 Digital automatic gain control |
| 02/24/1993 | EP0469077A4 Analog/digital voice storage cellular telephone |
| 02/24/1993 | CN1069380A Source voltage control switching circuit |
| 02/23/1993 | US5189683 Transceiver providing selectable frequencies and spreading sequences |
| 02/23/1993 | US5189517 Remote unit for controlling the operation of a television receiver |
| 02/23/1993 | US5189415 Receiving apparatus |
| 02/23/1993 | US5189413 Scanning receiver with manual override of frequency scanning routine |
| 02/23/1993 | US5189400 Communication device capable of preventing energy source removal |
| 02/23/1993 | US5189358 Adaptor for mounting portable radio apparatus to moving body and charger for portable radio apparatus |
| 02/18/1993 | WO1993003552A1 Adjacent channel controller for radio receiver |
| 02/18/1993 | WO1993003551A1 Method and apparatus for prevention of squelch chatter |
| 02/18/1993 | DE4214083A1 Elektronische einrichtung zur pruefung des zustandes von leistungsversorgungen Electronic device for pruefung of a condition of power supplies |
| 02/18/1993 | DE4127070A1 Noise suppression system for car radio - has circuit to identify pulse transients amplitude frequency and intensity disturbances and controls transmission to output |
| 02/18/1993 | DE4126774A1 Converter for Astra satellite signal reception - selects two local oscillator frequencies so that second or third order mixing products fall between channels |
| 02/17/1993 | EP0527692A1 Far-end echo canceller |
| 02/17/1993 | EP0527481A1 Frequency converter circuit |
| 02/17/1993 | EP0527432A2 A circuit and method for phase error correction in a digital receiver |
| 02/17/1993 | EP0527374A2 Audio signal coding method with 32 kbit/s |
| 02/17/1993 | EP0527360A2 Integrated frequency synthesizer for use in transmission/reception |
| 02/17/1993 | EP0462191B1 Broadcast receiver, in particular for vehicles |
| 02/17/1993 | CN2127214Y Additional tunnel receiver |
| 02/17/1993 | CN2127213Y Improved bp set shell with sealing fitment |
| 02/16/1993 | US5187742 Circuitry for interfacing telecommunications equipment to a communication channel |
| 02/16/1993 | US5187718 Demodulator for spread spectrum communication |
| 02/16/1993 | US5187640 Capacitive power supply |
| 02/16/1993 | US5187469 Universal remote control including quick touch function |
| 02/16/1993 | CA1313707C Timepiece including an antenna |
| 02/16/1993 | CA1313702C Communication and energy control system for houses |
| 02/16/1993 | CA1313694C2 Transmission and reception apparatus for automobile |
| 02/13/1993 | CA2072709A1 Circuit and method for phase error correction in a digital receiver |
| 02/10/1993 | EP0526662A1 Circuit for sensing pulse-like noise in am receiver |
| 02/10/1993 | EP0526643A1 Antenna device |
| 02/10/1993 | CN2126944Y Vehicle carry sca broardcast receiver |
| 02/10/1993 | CN2126943Y Adjustable-induction earplug radio |
| 02/10/1993 | CN1068923A Prioritized data transfer method and apparatus for radiotelephone peripheral |
| 02/09/1993 | US5185804 Operating device of an electronic equipment mounted on a motor vehicle |
| 02/09/1993 | US5185803 Communication system for passenger vehicle |
| 02/09/1993 | US5185800 Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion |
| 02/09/1993 | US5185762 Spread spectrum microwave overlay with notch filter |
| 02/09/1993 | CA1313538C Low power digital receiver |
| 02/09/1993 | CA1313514C Housing and holder assembly for a portable communication apparatus |
| 02/04/1993 | WO1993002507A1 Am receiver |
| 02/04/1993 | WO1993002503A1 Adaptive graphic equalizer and radio using same |
| 02/03/1993 | WO1993003556A1 Cdma subtractive demodulation |
| 02/03/1993 | EP0526439A1 CDMA substractive demodulator |
| 02/03/1993 | EP0526173A2 Programmable transponder |
| 02/03/1993 | EP0526146A1 AC-DC decoupling circuit for audio signals and used in an integrated circuit |
| 02/03/1993 | EP0525969A2 A frequency translating coherent analog to digital conversion system for modulated signals |
| 02/03/1993 | EP0525962A2 Cellular telephone with transmitter power level control |
| 02/03/1993 | EP0525809A2 Digital encoder with dynamic quantization bit allocation |
| 02/03/1993 | EP0525774A2 Digital audio signal coding system and method therefor |
| 02/03/1993 | EP0525301A1 Programming assembly for all kind of apparatus controlled by keys |
| 02/03/1993 | EP0525298A1 Portable radiotelephone |
| 02/03/1993 | EP0525014A1 Receiver for satellite reception. |
| 02/03/1993 | EP0289080B1 System for subband coding of a digital audio signal |
| 02/03/1993 | CN2126752Y Sound control transceiver for radio speak phone |
| 02/03/1993 | CN1068689A High efficiency digital data encoding and decoding apparatus |
| 02/03/1993 | CA2075156A1 Digital encoder with dynamic quantization bit allocation |
| 02/02/1993 | US5184331 Transducer circuit for removing reactive component of transducer signal |
| 02/02/1993 | US5184084 Double band frequency converting system |
| 01/28/1993 | DE4124719A1 Multi-source satellite receiver system - receives polarised electromagnetic waves emitted from two different geostationary satellites |
| 01/27/1993 | EP0524460A2 Housing for a handheld radio transceiver |
| 01/27/1993 | EP0524424A1 Method of operating a portable transmitter to drive vehicle functions |
| 01/27/1993 | EP0524264A1 Adaptive-block-length, adaptive-transform, and adaptive-window transform coder and decoder for high-quality audio. |
| 01/26/1993 | US5182552 Multiple zone audio system |
| 01/26/1993 | US5182551 Remote control system for audio/video devices |
| 01/26/1993 | US5181975 Integrated circuit transponder with coil antenna in a pneumatic tire for use in tire identification |
| 01/26/1993 | CA1313255C Tuner for receiving television signals in two different systems |
| 01/26/1993 | CA1313228C2 Frequency converter |
| 01/26/1993 | CA1313227C Radio communication apparatus having an improved signal to noise ratio |
| 01/25/1993 | WO1993002508A1 Process for finding the overall monitoring threshold during a bit-rate-reducing source coding |
| 01/23/1993 | WO1993002505A1 Power control circuitry for a tdma radio frequency transmitter |
| 01/21/1993 | WO1993001688A1 Mobile telephone system with several transceivers |
| 01/21/1993 | WO1993001674A1 Spread spectrum television transmission |
| 01/21/1993 | WO1993001659A1 Radio mode responsive to the position of a moveable antenna |
| 01/21/1993 | WO1993001658A1 Radio receiving circuits |
| 01/21/1993 | DE4219357A1 Digitaler empfaenger fuer mehrere simulananwender und digitales empfangsverfahren Digital empfaenger for several simulananwender and digital reception method |
| 01/21/1993 | DE4218166A1 Automatische lautstaerkesteuervorrichtung Automatic lautstaerkesteuervorrichtung |
| 01/20/1993 | EP0524081A1 Communication system between a emitter/receiver interrogator device and an emitter/receiver responder device |
| 01/20/1993 | EP0524008A1 Transmitter with nonlinearity correction circuits |
| 01/20/1993 | EP0523938A1 A radio receiver |
| 01/20/1993 | EP0523780A2 Coherent optical telecommunication network |