| 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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| 05/20/1992 | EP0485812A2 Device for the optical heterodyne reception of signals |
| 05/20/1992 | EP0485710A2 Radiotransceiver for FDM-TDM transmission system |
| 05/20/1992 | EP0485529A1 Broadcast receiver. |
| 05/20/1992 | EP0485453A1 Radio receiver frequency control system |
| 05/20/1992 | EP0485390A1 Process for transmitting a signal. |
| 05/20/1992 | CN2105145U Wire-radio explosion-proof communication unit |
| 05/20/1992 | CN1061312A System and method for generating signal waveforms in cdma cellular telephone system |
| 05/20/1992 | CN1061310A Fast phase shift adjusting method and device for linear transmitter |
| 05/19/1992 | US5115515 Method and apparatus for radio communication with improved automatic frequency control |
| 05/19/1992 | US5115449 Data networks |
| 05/19/1992 | US5115448 Spread spectrum receiver |
| 05/19/1992 | US5115240 Method and apparatus for encoding voice signals divided into a plurality of frequency bands |
| 05/19/1992 | US5115236 Remote control system using a wake up signal |
| 05/19/1992 | CA1301263C Power saving low frequency power amplifier |
| 05/19/1992 | CA1301253C Radio telecommunication apparatus |
| 05/19/1992 | CA1301072C Speech coding transmission equipment |
| 05/17/1992 | WO1992009156A1 Adaptive power control for a spread spectrum transmitter |
| 05/17/1992 | WO1992009155A1 Spread spectrum multipath receiver apparatus and method |
| 05/14/1992 | WO1992008303A1 Multichannel operation of rds |
| 05/14/1992 | WO1992008296A1 Method of detecting errors in the transmission of frequency-coded digital signals |
| 05/14/1992 | WO1992008295A1 Receiver with battery saver |
| 05/14/1992 | WO1992008293A1 Carry case assembly for a portable electrical device |
| 05/14/1992 | WO1992008148A1 Dual mode electronic identification system |
| 05/14/1992 | DE4135708A1 Empfangsvorrichtung Receiving device |
| 05/14/1992 | DE4106927C1 Sound reproduction equipment for vehicle - selects audio source and determines play length from detected sound level |
| 05/14/1992 | DE4035710A1 Noise suppression method for sensor arrangement using transmitter and receiver - modulating random signal generated at transmitter and correlating received signal in evaluating circuit with random signal |
| 05/14/1992 | DE4035672A1 Verfahren zum betreiben eines autoradios A method of operating a car radio |
| 05/14/1992 | CA2029724A1 Portable wireless transmitter for musical instruments |
| 05/13/1992 | EP0484595A1 A digital transmission system, an apparatus for recording and/or reproducing, and a transmitter and a receiver for use in the transmission system |
| 05/13/1992 | EP0484476A1 Digital automatic gain control |
| 05/13/1992 | CN1061122A Diode-triode mixture detector |
| 05/12/1992 | US5113525 Linear-modulation type radio transmitter |
| 05/12/1992 | US5113446 Stereo blend controller for FM receivers |
| 05/12/1992 | US5113428 Cordless telephone headset |
| 05/12/1992 | US5113414 Predistortion arrangement for a digital transmission system |
| 05/12/1992 | US5113409 Spread spectrum intercept apparatus and method |
| 05/12/1992 | US5113336 Temperature compensated level detector |
| 05/12/1992 | US5113294 Automatic control method for home appliances using video tape recorder, and device thereof |
| 05/12/1992 | US5113278 Communication system and apparatus using chip signals |
| 05/12/1992 | US5113189 Frequency translating coherent analog to digital conversion system for modulated signals |
| 05/12/1992 | CA1300688C Data terminal |
| 05/06/1992 | WO1992008294A1 Receiver with automatic frequency control |
| 05/06/1992 | EP0484158A2 Radio transceiver having PLL synthesizer |
| 05/06/1992 | EP0484064A2 Broadband optical receiver |
| 05/06/1992 | EP0483956A2 Combined broadcast radio receiver and radio telephone |
| 05/06/1992 | EP0483845A2 Tap weight adaptation control using stepsize inversely variable with signal power level |
| 05/06/1992 | EP0483463A2 Device for programming the channels of a satellite receiver |
| 05/06/1992 | EP0483246A1 Combined bias supply and power shut-off circuit. |
| 05/06/1992 | EP0483234A1 A method of subcarrier multiplication which preserves am information in fm systems. |
| 05/06/1992 | CN1016556B Ensemble modem structure for imperfect transmission media |
| 05/06/1992 | CN1016553B Subscriber unit for wireless digital subscriber communication system |
| 05/05/1992 | US5111484 Adaptive distortion canceller |
| 05/05/1992 | US5111479 Spread spectrum receiver and carrier sense circuit therefor |
| 05/05/1992 | US5111478 Method and apparatus for providing signal synchronization in a spread spectrum communication system |
| 05/05/1992 | US5111360 Onboard telephone package for vehicle |
| 05/05/1992 | US5111324 Optical receivers |
| 05/05/1992 | US5111298 Method and apparatus for communication channel identification and signal restoration |
| 05/05/1992 | US5111274 Semiconductor integrated circuit with circuit blocks, dummy islands, and bias and shield electrodes |
| 05/05/1992 | US5111199 Pocket-portable radio code signal transmitter for automotive keyless entry system |
| 05/05/1992 | CA1300289C Passive universal communicator |
| 05/05/1992 | CA1300236C Frequency, phase and modulation control system which is especially useful in simulcast transmission systems |
| 05/05/1992 | CA1300231C Automobile telephone device with battery saver |
| 05/05/1992 | CA1300199C Radio mounting assembly having self-aligning trim bezel |
| 05/05/1992 | CA1300096C Carry case with quick release and self locating retainer apparatus |
| 05/01/1992 | WO1992008298A1 Channel equalisation in particular for fading channels |
| 05/01/1992 | WO1992008291A1 Fast phase shift adjusting method and device for linear transmitter |
| 05/01/1992 | WO1992008282A1 Controlling clipping in a microwave power amplifier |
| 04/30/1992 | WO1992007435A1 Digital audio broadcasting system |
| 04/30/1992 | DE4034017A1 Verfahren zum erkennen von fehlern bei der uebertragung von frequenzcodierten digitalen signalen A method of detecting errors in transmission of frequency-encoded digital signals, |
| 04/29/1992 | EP0482959A2 System for data communication |
| 04/29/1992 | EP0482952A2 Method of data communication in communication network on automobile |
| 04/29/1992 | EP0482951A2 Method of and system for data communication in communication network on automobile |
| 04/29/1992 | EP0482927A2 Digital radio receiver |
| 04/29/1992 | EP0482502A2 Power amplifier and mobile radio apparatus with the same |
| 04/29/1992 | EP0482400A1 Circuit arrangement for band switching of a tuner |
| 04/29/1992 | EP0482315A2 Device for audible signalling of the activated controlled function in an audio device |
| 04/29/1992 | EP0481986A1 Means for filter effect by diversity antenna. |
| 04/28/1992 | US5109545 Proximal cable-less communication system with intentional signal path |
| 04/28/1992 | US5109544 Paging receiver with automatic frequency control |
| 04/28/1992 | US5109542 AM-FM combined stereo receiver |
| 04/28/1992 | US5109541 Car-mounted type booster system for hand-held phone |
| 04/28/1992 | US5109540 Radio and electronic card assembly |
| 04/28/1992 | US5109539 Portable communication device |
| 04/28/1992 | US5109536 Single-block filter for antenna duplexing and antenna-summed diversity |
| 04/28/1992 | US5109533 Method and apparatus for cancelling noise in a received signal by signal subtraction |
| 04/28/1992 | US5109531 Sideband receiver with pilot lock |
| 04/28/1992 | US5109530 Receiver with battery saver |
| 04/28/1992 | US5109525 Two-way radio with voice storage |
| 04/28/1992 | US5109420 Car audio device |
| 04/28/1992 | US5109417 Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
| 04/28/1992 | US5109402 Bus for a cellular telephone |
| 04/28/1992 | US5109296 Transmission line switching system |
| 04/28/1992 | US5109222 Remote control system for control of electrically operable equipment in people occupiable structures |
| 04/28/1992 | US5108335 Sound processing system and vehicle harness |
| 04/28/1992 | US5108334 Dual down conversion GPS receiver with single local oscillator |
| 04/28/1992 | CA1299751C Digital audio companding and error conditioning |
| 04/28/1992 | CA1299665C Space diversity microwave transmission system receiver |
| 04/28/1992 | CA1299662C Audio communications module for an office chair |
| 04/28/1992 | CA1299660C Tag for use with personnel monitoring system |
| 04/28/1992 | CA1299659C Audio receiver and detachable battery pack |