| 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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| 12/23/1992 | EP0519487A2 Transmission power control method and apparatus in satellite communication |
| 12/23/1992 | EP0519145A1 Electrically tuned RF receiver, apparatus and method therefor |
| 12/23/1992 | EP0519111A1 Method and system for transmission of digital audio and control data on a common bus, and interface used for the system |
| 12/23/1992 | EP0519015A1 Offset frequency converter for phase/amplitude data measurement receivers |
| 12/23/1992 | CN1067344A Apparatus and method for equalizing corrupted signal in receiver |
| 12/23/1992 | CA2635914A1 Error masking in a variable rate vocoder |
| 12/16/1992 | EP0518835A1 Method of compensating the dependence of the useful transmitter signal on the transfer function of a combiner filter |
| 12/16/1992 | EP0518526A1 Portable radio apparatus of foldable type |
| 12/16/1992 | EP0517776A1 Hole placement and fill system based on category selection |
| 12/16/1992 | EP0487548A4 Synthesized selective call receiver having variable characteristics |
| 12/16/1992 | CN2125212U Wireless calling device capable of reading easily |
| 12/15/1992 | US5172411 Two-wire/four-wire converter |
| 12/15/1992 | US5172231 S-band video signal transmitter |
| 12/15/1992 | CA1311534C Monolithic ceramic filter with bandstop function |
| 12/10/1992 | WO1992022153A1 Process for the radio transmission of a control signal varying in time and radio receiver for receiving such a control signal |
| 12/10/1992 | WO1992022146A1 Portable radio battery latch |
| 12/10/1992 | WO1992022145A1 Battery saver for a communication device |
| 12/10/1992 | WO1992022144A1 Receiver with wideband quick scan |
| 12/10/1992 | WO1992022143A1 Power control circuitry for achieving wide dynamic range in a transmitter |
| 12/10/1992 | WO1992022137A1 Low computational-complexity digital filter bank |
| 12/10/1992 | WO1992022045A1 Signal transmission and tag power consumption measurement circuit for an inductive reader |
| 12/10/1992 | WO1992017946A3 Generating transmit injection from receiver first and second injections |
| 12/10/1992 | DE4118992A1 Mobiltelefonanordnung Mobile phone assembly |
| 12/09/1992 | EP0517556A1 Method for demodulating RDS signals in a digital way, and demodulator to perform this method |
| 12/09/1992 | EP0517540A2 Portable sound system |
| 12/09/1992 | EP0517336A2 Mobile radio transceiver |
| 12/09/1992 | EP0517237A2 Apparatus for receiving FM stereo radio signals, with associated data subcarrier,broadcast in the VHF and UHF bands in association with a conventional video signal |
| 12/09/1992 | EP0517115A2 System for supplying power to a detachable grille of a car stereo |
| 12/09/1992 | EP0517066A1 Method for wireless transmission of a control signal varying in time and wireless receiver for receiving such a control signal |
| 12/09/1992 | EP0516902A1 Feedback circuit for noiseless damping of the Q of an MRI receiver antenna |
| 12/09/1992 | EP0516741A1 Hybrid analog/digital signal processing |
| 12/09/1992 | EP0316368B1 Identification system |
| 12/09/1992 | EP0231259B1 Nationwide radio paging system |
| 12/09/1992 | CN1066946A Digital communication system |
| 12/08/1992 | US5170500 Intermediate frequency circuit for cellular telephone transceiver using surface acoustic wave filter |
| 12/08/1992 | US5170498 Band switching filter and satellite broadcast receiving system using the same |
| 12/08/1992 | US5170496 Circuit arrangement for matching the resonant frequency of an antenna resonant circuit to the output frequency of a transmitter output stage |
| 12/08/1992 | US5170495 Controlling clipping in a microwave power amplifier |
| 12/08/1992 | US5170494 Two piece radio telephone |
| 12/08/1992 | US5170493 Combined low frequency receive and high frequency transceive antenna system and method |
| 12/08/1992 | US5170492 Digitally frequency-locking a radio transceiver to the received signal |
| 12/08/1992 | US5170491 Power source switch circuit |
| 12/08/1992 | US5170490 Radio functions due to voice compression |
| 12/08/1992 | US5170489 For use in a communication device |
| 12/08/1992 | US5170412 For the simultaneous exchange of several data streams |
| 12/08/1992 | US5170411 Modulation and demodulation system for spread spectrum transmission |
| 12/08/1992 | US5170410 Direct sequence spread spectrum digital communication system employing sequence changing during transmission and transmitter and receiver implementing same |
| 12/08/1992 | US5170392 Intermodulation compensation in a receiver |
| 12/08/1992 | US5170252 System and method for interconnecting and mixing multiple audio and video data streams associated with multiple media devices |
| 12/08/1992 | US5170173 Antenna coupling apparatus for cordless telephone |
| 12/08/1992 | US5170161 Wireless transmitting-receiving apparatus for a bicycle |
| 12/08/1992 | CA2069576A1 Portable sound system |
| 12/06/1992 | WO1992022147A1 Radio with fast lock phase-locked loop |
| 12/06/1992 | CA2102496A1 Radio with fast lock phase-locked loop |
| 12/03/1992 | DE4117787A1 Radio broadcast transmission using variable dynamics - transmitting time reference signal in programme signal and radio data system signal, for exact correlation of time-varying control signal |
| 12/03/1992 | DE4117241A1 Telecommunication appts. tuner for multifrequency reception - has single amplifier branch for reception of transmitters of all frequency ranges |
| 12/02/1992 | EP0516485A2 Radio pager |
| 12/02/1992 | EP0516453A1 Control of a power amplifier, particularly in a portable telephone |
| 12/02/1992 | EP0516134A1 RF power amplifier |
| 12/02/1992 | EP0515675A1 Synchronous spread-spectrum communications system and method |
| 12/02/1992 | EP0515624A1 Spread spectrum multipath receiver apparatus and method |
| 12/02/1992 | EP0515610A1 Adaptive power control for a spread spectrum transmitter |
| 12/02/1992 | EP0506708A4 Method and apparatus for random fm noise cancellation |
| 12/02/1992 | EP0489838A4 Battery saver for a tdm system |
| 12/02/1992 | EP0469001A4 Paging receiver with continuously tunable antenna and rf amplifier |
| 12/02/1992 | EP0258415B1 Syringe-implantable identification transponder |
| 12/01/1992 | US5168510 Spread spectrum-time diversity communications systems and transceivers for multidrop area networks |
| 12/01/1992 | US5168508 Spread spectrum receiver |
| 12/01/1992 | US5168506 Method for protected radio signal transmission |
| 12/01/1992 | US5168505 Automatic gain control device for spread spectrum communication device |
| 12/01/1992 | US5168481 Automated digital broadcast system |
| 12/01/1992 | US5168282 To transmit and receive |
| 12/01/1992 | US5168281 Antenna connection device for electronic equipment |
| 11/29/1992 | WO1992022157A1 Power control of a direct sequence cdma radio |
| 11/29/1992 | WO1992022142A1 Radio frequency error detection and correction system |
| 11/26/1992 | WO1992021195A1 Dual mode transmitter and receiver |
| 11/26/1992 | WO1992021193A1 Adaptive carrier detection |
| 11/26/1992 | WO1992021178A1 Shock isolation for selective call receivers |
| 11/25/1992 | EP0515104A1 Remote control device |
| 11/25/1992 | EP0514949A2 Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| 11/25/1992 | EP0514853A2 Stretch and chirp waveform format for reduced generating and receiving hardware complexity |
| 11/25/1992 | EP0514813A2 Mobile telephone device wherein an adder supplies a sum of audio and out-of audio band signals to a compressor circuit |
| 11/25/1992 | EP0514624A2 Radio receiver with RDS |
| 11/25/1992 | EP0514539A1 Spread spectrum cdma communications system |
| 11/25/1992 | CN2123148U Bill information search system with wireless receiving ability |
| 11/25/1992 | CN1066551A Audio level equalization of television sound, broadcast fm and national weather service fm radio signals |
| 11/25/1992 | CN1066545A Selective calling reception apparatus |
| 11/25/1992 | CN1066540A Control system including switching circuit for ensuring proper operation when operating power is removed from portion of control system |
| 11/24/1992 | US5166953 Technique for frequency-hopped spread spectrum communications |
| 11/24/1992 | US5166868 Sealing pad for a radio device |
| 11/24/1992 | US5166857 Electronically tunable capacitor switch |
| 11/24/1992 | US5166798 Color TV with satellite broadcast receiver internally installed |
| 11/24/1992 | CA1310698C Mobile telephone terminal |
| 11/24/1992 | CA1310696C Alternating sequential half duplex communication system |
| 11/19/1992 | EP0514265A2 Device for displaying remaining electric energy of battery |
| 11/19/1992 | EP0514200A2 TDMA radio communication apparatus |
| 11/19/1992 | EP0514080A2 Transition signalling data communications |
| 11/19/1992 | EP0513860A2 Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| 11/19/1992 | EP0513795A2 Automatic ejection system of a car stereo having a detachable grille |
| 11/19/1992 | EP0513710A2 Mobile wireless apparatus |