| 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) |
|---|
| 02/19/1992 | CN1058871A Stereo fm radio in television receiver |
| 02/19/1992 | CN1058870A Radio reception by synthesizing only center frequency information |
| 02/18/1992 | US5090024 Spread spectrum communications system for networks |
| 02/18/1992 | US5090023 Spread spectrum communication system |
| 02/18/1992 | US5089341 High-sensitivity thermosensitive multilayer film and method for production of plate-making stencil sheet |
| 02/18/1992 | CA1296064C Two-way radio having a phased locked loop |
| 02/13/1992 | DE4126435A1 Vehicle traffic information reception system - detects control signal in transmitted traffic signal to operate information display |
| 02/13/1992 | DE4124037A1 Noise-free signal transmission system - divides signal into sections processed to provide two signal components transmitted sequentially |
| 02/12/1992 | EP0470786A2 Electronic rotatable polarization antenna feed apparatus |
| 02/12/1992 | EP0470548A1 Method for controlling attenuation in a digital hands-free telephone set |
| 02/12/1992 | EP0470519A2 Mono FM radio in a television receiver |
| 02/12/1992 | EP0470504A2 Fixed RF AGC of a television tuner for FM reception in a television receiver |
| 02/12/1992 | EP0470502A2 First if filter with fixed second half-if trap for use in an FM radio in a television receiver |
| 02/12/1992 | EP0470484A2 Information radio reception in a television receiver by synthesizing only center frequency |
| 02/12/1992 | EP0470481A2 Stereo FM radio receiver in a television receiver |
| 02/12/1992 | EP0470480A2 FM trap for a television tuner permitting both TV and FM reception through the same tuner |
| 02/12/1992 | EP0470352A1 Method for direct sequence spread spectrum digital transmission with sequence change during transmission and transmitter and receiver for implementing said method |
| 02/12/1992 | EP0470294A2 Notch filter for digital transmission system |
| 02/12/1992 | EP0470089A1 Receiver threshold extension |
| 02/12/1992 | CN2096186U Remote control lamp cap |
| 02/12/1992 | CN2096168U Radio receiver for tv sound |
| 02/12/1992 | CN1058679A Wireless synchronous timing method and apparatus thereof |
| 02/11/1992 | US5087888 Light weight power amplifier assembled with no hand soldering or screws |
| 02/11/1992 | CA1295757C Fet tuner |
| 02/11/1992 | CA1295687C Rf driver power supply |
| 02/07/1992 | WO1992003022A1 Universal remote control including quick touch function |
| 02/07/1992 | WO1992002997A1 Reciprocal mode saw correlator method and apparatus |
| 02/07/1992 | CA2088977A1 Reciprocal mode saw correlator method and apparatus |
| 02/07/1992 | CA2088374A1 Universal remote control including quick touch function |
| 02/06/1992 | WO1992002093A1 Programmable digital frequency-phase discriminators |
| 02/06/1992 | WO1992002083A1 Programmable digital acquisition and tracking controller |
| 02/06/1992 | WO1992002082A1 Digital demodulator generating level, carrier, and code error signals |
| 02/06/1992 | WO1992002080A1 Clock regenerating circuit |
| 02/06/1992 | WO1992001978A1 Location acquisition and time adjusting system |
| 02/06/1992 | WO1992001952A1 Device for positioning a first object relative to a second object |
| 02/05/1992 | EP0469898A2 Transmitter with dual conversion |
| 02/05/1992 | EP0469341A2 Broadcast receiver with a radio data signal decoder |
| 02/05/1992 | EP0469077A1 Analog/digital voice storage cellular telephone |
| 02/05/1992 | EP0469001A1 Paging receiver with continuously tunable antenna and rf amplifier |
| 02/05/1992 | EP0248033B1 Multi-level power amplifying circuitry for portable radio transceivers |
| 02/05/1992 | CN1058476A Timing radio ramote-controlled waking-up device |
| 02/04/1992 | US5086513 Digital radio transceiver programmer with advanced user interface |
| 02/04/1992 | US5086512 Compensation system for dynamically tracking and nulling local oscillator feedthrough |
| 02/04/1992 | US5086511 Mobile receiver |
| 02/04/1992 | US5086510 Multi-choice information system for a motor vehicle |
| 02/04/1992 | US5086509 Thermally adaptive housing for hand held radio telephone device |
| 02/04/1992 | US5086508 Radio transceiver with transmission level control |
| 02/04/1992 | US5086437 Agc device for producing a gain controlled and d.c. offset removed signal |
| 02/04/1992 | US5086340 Co-channel interference reduction system for digital high definition television |
| 02/04/1992 | US5086301 Polarization converter application for accessing linearly polarized satellites with single- or dual-circularly polarized earth station antennas |
| 02/04/1992 | CA1295421C Amplitude enhanced sampled clipped speech encoder and decoder |
| 01/31/1992 | WO1992002991A1 Dual mode automatic frequency control |
| 01/29/1992 | EP0468346A2 Circuit for reproducing digital data |
| 01/29/1992 | EP0468025A1 Radio having removable memory means for storing radio user validation code |
| 01/29/1992 | EP0467899A1 Radio having optical controls. |
| 01/29/1992 | CN2094834U Remote launch device |
| 01/28/1992 | US5084913 Programmable multi-mode two-channel timing generator |
| 01/28/1992 | US5084902 Jitter canceller with an initial value setting circuit for an adaptive filter |
| 01/28/1992 | US5084901 Sequential chirp modulation-type spread spectrum communication system |
| 01/28/1992 | US5084899 Signal suppressors |
| 01/28/1992 | CA1295044C Multi-band programmable compression system |
| 01/25/1992 | WO1992001953A1 Device for information transmission |
| 01/25/1992 | CA2087980A1 Device for information transmission |
| 01/24/1992 | WO1992002094A1 Sawc phase-detection method and apparatus |
| 01/24/1992 | CA2087712A1 Sawc phase-detection method and apparatus |
| 01/23/1992 | WO1992001337A1 Radio receivers |
| 01/23/1992 | WO1992001333A1 A method for improving stop-band attenuation of a duplex filter |
| 01/23/1992 | DE4123699A1 Interface circuit for motor vehicle control computer - has input level detector for sampling input pulses, and stores output in memory for noise suppression |
| 01/22/1992 | EP0467689A2 Luminance signal noise suppressor |
| 01/22/1992 | EP0467587A2 Audio-visual system |
| 01/22/1992 | EP0467367A1 Subscriber line circuit for connection of a subscriber line for the transmission of analogue subscriber signals to a digital time division multiplex telephone exchange |
| 01/22/1992 | EP0467338A2 Ghost cancelling circuit |
| 01/22/1992 | EP0467305A2 Apparatus for connecting electronic appliances |
| 01/22/1992 | EP0467163A1 Hybrid ciruit having a two-wire/four-wire converting function |
| 01/22/1992 | EP0466949A1 Device for contactless transfer of data and energy and its use |
| 01/22/1992 | EP0377581A4 Analog/digital data storage system |
| 01/19/1992 | CA2021459A1 Battery operated radio receiver |
| 01/16/1992 | DE4022027A1 Optisches datennetz hoher betriebssicherheit Optical data network high operational safety |
| 01/15/1992 | EP0466442A2 Non-linear preemphasis-deemphasis circuits |
| 01/15/1992 | EP0466190A2 Quantizing error reducer for audio signal |
| 01/15/1992 | EP0466084A1 SAW electric part and frequency conversion circuit |
| 01/15/1992 | EP0466080A1 Remote control device for transmitter-receiver sets, in particular for the reconfiguration of base stations of a cellular telephone network |
| 01/15/1992 | EP0465463A1 Power conservation method and apparatus for a portion of a predetermined signal. |
| 01/15/1992 | CN2093474U Dynamic balancing switching amplitude modulation floating carrier broadcast tv transmitter |
| 01/15/1992 | CN2093473U Variable-frequency diplexer device |
| 01/14/1992 | US5081713 Radio transmitter capable of compensating for a frequency characteristic of an antenna and/or a coupling circuit |
| 01/14/1992 | US5081709 Interchangeable belt clip for a selective call receiver housing and carrying case |
| 01/14/1992 | US5081645 Novel spread spectrum codec apparatus and method |
| 01/14/1992 | US5081644 Spread spectrum receiving device |
| 01/14/1992 | US5081643 Spread spectrum multipath receiver apparatus and method |
| 01/14/1992 | US5081642 Reciprocal saw correlator method and apparatus |
| 01/14/1992 | US5081534 Television receiver with remote control system capable of controlling associated peripheral devices manufactured by different companies |
| 01/14/1992 | US5081402 Low power consumption wireless data transmission and control system |
| 01/14/1992 | CA1294333C Radio receiver antitheft device used namely in passenger cars |
| 01/12/1992 | WO1992001341A1 Highly reliable optical data system |
| 01/12/1992 | CA2087015A1 Highly reliable optical data system |
| 01/11/1992 | CA2046480A1 Transceiver group remote control device, particularly for the base station configuration in a cellular radiotelephone network |
| 01/09/1992 | WO1992000639A1 System and method for generating signal waveforms in a cdma cellular telephone system |
| 01/09/1992 | WO1992000634A1 Full duplex/half duplex power radio |
| 01/09/1992 | DE4020932A1 Verfahren zum uebertragen einer sich zeitlich aendernden stellgroesse A method for wear by a temporally unchanging manipulated variable |