| 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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| 10/13/1993 | EP0541772A4 A personal communications device having remote control capability |
| 10/13/1993 | EP0532552A4 Time based signal detector |
| 10/13/1993 | EP0273031B1 Characterized fast tuning control for a television system |
| 10/13/1993 | CN1077324A "methods and apparatus for communicating program data sienals via a remote control unit" |
| 10/13/1993 | CN1077320A High gain protable radio selective call receiver |
| 10/12/1993 | US5253299 Noise reduction apparatus in an FM stereo tuner |
| 10/12/1993 | US5253298 Reducing audible noise in stereo receiving |
| 10/12/1993 | US5253292 Portable radiotelephone support assembly |
| 10/12/1993 | US5253291 Hybrid balance and combination codec filter circuit |
| 10/12/1993 | US5253268 Method and apparatus for the correlation of sample bits of spread spectrum radio signals |
| 10/12/1993 | US5253249 Bidirectional transceiver for high speed data system |
| 10/12/1993 | US5253221 In combination with a sonar system |
| 10/12/1993 | US5252979 Universal communication system |
| 10/12/1993 | US5252965 Changing one of many access codes upon removal of ignition key |
| 10/12/1993 | US5252963 "Selective call receiver" |
| 10/12/1993 | US5252962 System monitoring programmable implantable transponder |
| 10/12/1993 | US5252930 Predistorter for linearization of electronic and optical signals |
| 10/12/1993 | US5252929 RF power amplifier |
| 10/12/1993 | US5251771 Structure of a casing for a vehicle-mounted radio communication apparatus |
| 10/12/1993 | CA2004023C Tdm quasi-duplex system |
| 10/10/1993 | WO1993021694A1 Method of transmitting and/or storing digitized data-reduced audio signals |
| 10/06/1993 | EP0564353A1 Car receiver for assisting the navigation of an automotive vehicle |
| 10/06/1993 | EP0564089A1 A method and appartus for the perceptual coding of audio signals |
| 10/06/1993 | EP0564075A1 Continuous phase FSK modulated optical transmission system with local osciallator control |
| 10/06/1993 | EP0563832A1 Stereo audio encoding apparatus and method |
| 10/06/1993 | EP0563459A1 Voice-operated microphone and speaker for a radio transceiver |
| 10/06/1993 | EP0563450A1 Device for filtering signals of an antenna and a transceiver with two or more antennae |
| 10/06/1993 | EP0563300A1 Apparatus and method for equalizing a corrupted signal in a receiver |
| 10/06/1993 | EP0563125A1 Dynamically biased amplifier |
| 10/06/1993 | CN2143382Y Remote controlled electric motor prolector |
| 10/06/1993 | CN1077069A Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system |
| 10/06/1993 | CN1077038A Automative interest increasing controlling circuit |
| 10/06/1993 | CN1022365C Numerically controlled non-interrupted operating circuit for broadcasting transmitter |
| 10/06/1993 | CN1022364C Dynamic offset amplifier |
| 10/05/1993 | US5251332 FM receiver which detects and responds to receiving and interference states |
| 10/05/1993 | US5251330 Linear transmitter |
| 10/05/1993 | US5251328 Predistortion technique for communications systems |
| 10/05/1993 | US5251326 Two way communication system for water sports |
| 10/05/1993 | US5251325 Battery saving method and apparatus for providing selective receiver power switching |
| 10/05/1993 | US5251233 Apparatus and method for equalizing a corrupted signal in a receiver |
| 10/05/1993 | US5251232 Radio communication apparatus |
| 10/05/1993 | US5251189 Wristwatch radiotelephone |
| 10/05/1993 | US5250944 Antenna and driving circuit for transmitting and receiving images to and from a passive transponder |
| 10/05/1993 | US5250912 RF power amplifier |
| 10/05/1993 | CA1322787C Ceramic filter having integral phase shifting network |
| 10/05/1993 | CA1322785C Extendable antenna for portable cellular telephones |
| 10/02/1993 | CA2092940A1 Navigation aid receiver for an automobile vehicle |
| 09/30/1993 | WO1993019567A1 Method of eliminating repetitive interfering signals |
| 09/30/1993 | WO1993019552A1 Rake receiver with selective ray combining |
| 09/30/1993 | WO1993018716A1 Bone fixation system |
| 09/30/1993 | DE4209544A1 Verfahren zum Übertragen oder Speichern digitalisierter, mehrkanaliger Tonsignale A method of transmitting or storing digitized, multi-channel audio signals |
| 09/30/1993 | DE3733772C2 Multi-Signalprozessorsystem Multi-signal processor system |
| 09/29/1993 | EP0563020A2 RAKE receiver with selective ray combining |
| 09/29/1993 | EP0562963A1 AGC device in a receiver for data signals |
| 09/29/1993 | EP0562961A1 Method of automatic gain control of a superheterodyne receiver and receiver using such a method |
| 09/29/1993 | EP0562875A1 Multiresolution QAM system |
| 09/29/1993 | EP0562868A2 Method and apparatus for multiple access between transceivers in wireless communication using OFDM spread spectrum |
| 09/29/1993 | EP0562794A1 Superheterodyne receiver |
| 09/29/1993 | EP0562529A2 Spread spectrum communication system and method |
| 09/29/1993 | EP0562255A1 AM radio transmitter for various modulations, especially DSB, SSB, ISB |
| 09/29/1993 | EP0562004A1 Multi-dimensional data processing and display |
| 09/29/1993 | EP0546088A4 Frequency modulated synthesizer using low frequency offset mixed vco |
| 09/29/1993 | EP0542878A4 Universal remote control including quick touch function |
| 09/29/1993 | EP0532712A4 Battery saving method and apparatus for providing selective receiver power switching |
| 09/29/1993 | CN1076816A System of communication |
| 09/29/1993 | CN1022280C Transmission system |
| 09/28/1993 | US5249305 Radio frequency error detection and correction system |
| 09/28/1993 | US5249303 Continuous reception by a mobile receiver unit of program channels transmitted by a series of transmitters |
| 09/28/1993 | US5249233 Multipath noise minimizer for radio receiver |
| 09/28/1993 | US5249227 Method and apparatus of controlling processing devices during power transition |
| 09/28/1993 | US5249204 Circuit and method for phase error correction in a digital receiver |
| 09/28/1993 | US5249202 Radio communication |
| 09/28/1993 | US5249102 Portable electric device with sliding switch cover |
| 09/28/1993 | US5248264 Latch assembly and carrier for a portable product |
| 09/28/1993 | CA2092788A1 Improved automatic gain control method for a radio signal superheterodyne receiver and receiver using said method |
| 09/23/1993 | DE4308508A1 Bidirectional signal transmission system for computer system - has logic units with ECL transmitter stages providing impedance values related to characteristics line impedance for optimum transmission |
| 09/23/1993 | DE4208290A1 Mobile telephone subscriber's appts. - includes separate handset removable from mobile base station to which it is linked by radio or IR signal path |
| 09/22/1993 | EP0561754A1 An arrangement for eliminating offset errors in a power control circuit of a pulsed transmitter final amplifier |
| 09/22/1993 | EP0561675A1 Receiving antenna with a single pointing direction for reception from several satellites of different orbiting positions |
| 09/22/1993 | EP0561560A1 Frequency divider with variable capacitance |
| 09/22/1993 | EP0561257A1 Circuit arrangement for bridging momentary voltage drops in battery supplied radio devices |
| 09/22/1993 | EP0561117A1 Circuit for detection and suppression of adjacent channel interference in a broadcast receiver |
| 09/22/1993 | EP0414838B1 Process for transmitting a signal |
| 09/22/1993 | CN1076566A Power amplifier combining network |
| 09/21/1993 | US5247704 Burst mode transmitter/receiver unit |
| 09/21/1993 | US5247703 Transceiver with off hook scanning |
| 09/21/1993 | US5247580 Voice-operated remote control system |
| 09/21/1993 | US5247542 QPSK power amplifier distortion correction system |
| 09/21/1993 | US5247540 Reversible data link |
| 09/21/1993 | CA2063631A1 Method and apparatus for recording, storage and retrieval of audio communications |
| 09/21/1993 | CA2021232C Diversity receiving system for use in digital radio communication with means for selecting branch by estimating propagation path property |
| 09/19/1993 | CA2091753A1 Frequency divider with variable capacitance |
| 09/18/1993 | CA2091730A1 Receiving antenna with single aiming direction for several satellites having different orbital positions |
| 09/16/1993 | WO1993018597A1 Binary phase shift keying modulation system or frequency multiplier |
| 09/16/1993 | WO1993018591A1 Portable communications device |
| 09/16/1993 | WO1993018581A1 Rf power amplifier with linearizattion |
| 09/16/1993 | DE4207823A1 Synchronous receiver for LW and MW - uses phase locked reference frequency to synchronise receiver frequency synthesiser |
| 09/16/1993 | DE4207664A1 Traffic radio recording system - uses RAM chip provided as extra component of traffic radio receiver |
| 09/16/1993 | DE4207205A1 Alternating transmitter for analog and/or digital signals - has base station and associated opposite station as transceiver units |
| 09/15/1993 | EP0560599A1 Noise suppression apparatus |