| Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426) |
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| 04/04/1990 | EP0361350A2 Mobile telephone station with power saving circuit |
| 04/04/1990 | EP0361299A2 Digital radio transmission system for a cellular network using the spread spectrum technique |
| 04/04/1990 | EP0360803A1 Portable communications receiver with separate information presentation means and improved battery saving function. |
| 04/04/1990 | CN1041075A New calibration method for improved us-made aeronautical hf emitter |
| 04/03/1990 | US4914735 Propagation time detecting system with use of detected phase difference of transmitted and received subcarrier |
| 04/03/1990 | US4914714 Portable radio communication apparatus having diversity reception function |
| 04/03/1990 | US4914676 Cross polarization interference canceller |
| 04/03/1990 | US4914651 In an advanced mobile phone service |
| 04/03/1990 | US4914649 Multiple frequency message system |
| 04/03/1990 | US4914446 For a motor vehicle |
| 04/03/1990 | US4914443 Angle diversity signal separator using mode conversion |
| 03/28/1990 | EP0360589A2 Cellular data communications system |
| 03/28/1990 | EP0360241A2 Error correction system in a multicarrier radio transmission system |
| 03/28/1990 | CN2055308U Automatic radio signal transmission station |
| 03/28/1990 | CN1040892A Signal integrity control technique for rf communication system |
| 03/28/1990 | CN1007399B Wireless telephone for mine |
| 03/28/1990 | CN1007396B Satellite communication system of using frequency-division multiplex |
| 03/27/1990 | US4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 03/27/1990 | US4912656 Adaptive link assignment for a dynamic communication network |
| 03/22/1990 | WO1990003071A1 Method and system in a wide area radio communication network |
| 03/22/1990 | WO1990003041A1 Multiple frequency message system |
| 03/22/1990 | WO1990002968A1 Common path multichannel optical processor |
| 03/21/1990 | EP0359231A2 Cordless telephone communication system |
| 03/21/1990 | EP0358688A1 Method for dynamically allocating data channels on a trunked communication system. |
| 03/20/1990 | US4910793 Two-way transmission system for ground/mobile station communications |
| 03/20/1990 | US4910792 Up-link power control in satellite communications system |
| 03/20/1990 | US4910527 Configurable KU-band receiver for satellite antenna feed |
| 03/20/1990 | US4910524 Investigating and controlling the pointing direction of an antenna on board a spacecraft |
| 03/20/1990 | US4910510 System for off-the-air reprogramming of communication receivers |
| 03/20/1990 | US4910468 Dual polarization demodulation with cross polarization cancellation |
| 03/20/1990 | CA1266932A1 Cordless telephone system |
| 03/20/1990 | CA1266915A1 Vehicle antenna system |
| 03/20/1990 | CA1266885A1 Output power control circuit for a mobile radio apparatus |
| 03/14/1990 | EP0358582A2 A unique word detection system |
| 03/14/1990 | EP0358166A2 Power saving arrangement and power saving method |
| 03/14/1990 | EP0226610B1 Installation with portable, wireless telephone sets |
| 03/14/1990 | CN1007199B Receive device in a satellite communication system |
| 03/13/1990 | US4908846 Mobile telephone terminal having function to perform call clear process |
| 03/08/1990 | WO1990002455A1 Link utilization control mechanism for demand assignment satellite communications network |
| 03/08/1990 | WO1990002452A1 Mechanism for deriving accurate frequency reference for satellite communications burst demodulator |
| 03/06/1990 | US4907290 Mobile transmitter/receiver |
| 03/06/1990 | US4907247 Satellite delay simulation system |
| 03/06/1990 | US4907159 Device for receiving and processing road information |
| 03/06/1990 | US4907003 Satellite receiver and acquisiton system |
| 03/06/1990 | US4906989 Paging system having a vehicle mounted repeater with a portable paging receiver detachably mounted thereon |
| 02/28/1990 | EP0355985A2 A signal repeater assembly for a spacecraft |
| 02/28/1990 | EP0355979A2 Power amplifying assembly |
| 02/28/1990 | EP0355973A2 Digital mobile phone |
| 02/28/1990 | EP0355328A2 Space diversity receiving circuit |
| 02/28/1990 | CN1040119A Frequency synthesizer with spur compensation |
| 02/27/1990 | US4905302 Trunked radio repeater system |
| 02/27/1990 | US4905235 TDMA system capable of individually controlling electric power of bursts |
| 02/27/1990 | US4905234 Apparatus and method for transmitting digital data over a radio communications channel |
| 02/27/1990 | US4905221 Earth station capable of effectively using a frequency band of a satellite |
| 02/27/1990 | US4904993 Remote control apparatus with selectable RF and optical signal transmission |
| 02/22/1990 | WO1990001855A1 Mobile radio paging test system |
| 02/21/1990 | CN1039943A Communication system having packet structure field |
| 02/21/1990 | CN1006949B Frequency modulation one-way single-carr generator |
| 02/20/1990 | US4903326 Detachable battery pack with a built-in broadband antenna |
| 02/20/1990 | US4903324 Ring around transceiver |
| 02/20/1990 | US4903322 Apparatus for managing channels of radio communication system |
| 02/20/1990 | US4903319 Portable radio telephone having power saver |
| 02/20/1990 | US4902988 Control for flexible probe |
| 02/20/1990 | CA1266136A1 Tdma/tdm interfacing |
| 02/14/1990 | CN1039690A High bit rate communication system for overcoming multipath |
| 02/13/1990 | US4901368 Frequency translation correction scheme for satellite communication system |
| 02/13/1990 | US4901313 A-point to multi-points communication system |
| 02/13/1990 | US4901310 Mobile satellite communication system |
| 02/13/1990 | US4901307 Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
| 02/13/1990 | CA1265845A1 Frequency offset diversity receiving system |
| 02/08/1990 | DE3820985A1 Method and arrangement for cancelling the intermodulation distortion of a transmitter |
| 02/07/1990 | EP0179898B1 A two way personal message system with extended coverage |
| 02/06/1990 | US4899367 Multi-level quadrature amplitude modulator system with fading compensation means |
| 01/31/1990 | EP0352976A2 Angle diversity signal separator using mode conversion |
| 01/31/1990 | EP0352787A2 High bit rate communication system for overcoming multipath |
| 01/31/1990 | CN2052173U Time-sharing two-way common-frequency relay device |
| 01/30/1990 | US4897883 Infrared remote control apparatus |
| 01/30/1990 | US4897864 Control method and appartus for a radio telephone system |
| 01/30/1990 | CA1265269A1 Tdm communication system for efficient spectrum utilization |
| 01/30/1990 | CA1265201A1 Radio communications system with reduced d/u ratio variations |
| 01/25/1990 | DE3824338A1 Satellite communications system |
| 01/24/1990 | EP0351532A2 Power adding device |
| 01/24/1990 | CN1039163A Trunked communication system with nationwide roaming capability |
| 01/23/1990 | US4896369 Optimal satellite TWT power allocation process for achieving requested availability and maintaining stability in ALPC-type networks |
| 01/23/1990 | US4896161 Roadside beacon system |
| 01/17/1990 | CN1038906A Method of and apparatus for acknow-ledging and partially answering paging signal |
| 01/16/1990 | US4894649 Portable communication device |
| 01/11/1990 | WO1990000277A1 Method of and apparatus for acknowledging and partially answering a paging signal |
| 01/10/1990 | EP0350007A2 Diversity antenna communication system |
| 01/10/1990 | EP0349603A1 Process and arrangement for equalizing dispersive, linear or approximately linear channels for transmitting digital signals. |
| 01/09/1990 | US4893317 Digital signals and frequency correction in a digital wireless system |
| 01/09/1990 | US4893128 Troposcatter diversity sidelobe jamming suppressor |
| 01/03/1990 | EP0348940A2 Uplink cross-polarization interference canceller using correlation calculator and stepwise tracking controller |
| 01/02/1990 | US4891638 Nationwide display pager with location readout |
| 12/27/1989 | EP0348187A2 Protective casing for a hand-held portable radio telephone |
| 12/27/1989 | EP0116577B1 Data signalling system |
| 12/27/1989 | CN1006269B Multi-level power amplifying circuitry for portable radio transoeivers |
| 12/27/1989 | CA1264067A1 Multi-level power amplifying circuitry for portable radio transceivers |
| 12/26/1989 | US4890332 Apparatus for judging quality of mobile data communication |
| 12/26/1989 | US4890298 Troposcatter modem receiver |