Patents
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
03/1992
03/10/1992US5095529 Intersystem group call communication system and method
03/10/1992US5095528 Repeater with feedback oscillation control
03/10/1992CN1069842A 同于外设与主机间通信的数据传输方法与装置 With the data transmission method between a peripheral device and communicate with the host
03/10/1992CA1297161C Pulse train relay
03/07/1992WO1992004771A1 Power amplifier
03/04/1992WO1992004780A1 Ultra-small down-converter for satellite communication
03/04/1992EP0473465A1 Power saving arrangement and method in portable cellular telephone system
03/04/1992EP0473297A2 Mobile data telephone
03/04/1992EP0472758A1 Method of transmission of digital data over a time-variant channel
03/03/1992US5093923 Optimization system and method
03/03/1992US5093840 Adaptive power control for a spread spectrum transmitter
03/03/1992US5093839 Frequency diversity receiving system based on cancellation of C/A code in GPS
03/03/1992US5093807 Video frame storage system
03/03/1992US5093668 Multiple-beam array antenna
03/03/1992CA1296772C Digital radio transmission system for a cellular network, using the spread spectrum method
02/1992
02/28/1992CA2043118A1 Power saving arrangement and method in portable cellular telephone system
02/26/1992EP0472511A2 Handoff of a mobile station between half rate and full rate channels
02/26/1992EP0472018A2 Switchable on-board communication payload for multi-band and multi-beam applications
02/25/1992US5091940 Data router with burst shuffling and deshuffling output buffers
02/25/1992US5091918 Equalizers
02/25/1992US5091733 Antenna pointing device
02/25/1992CA1296390C Radio broadcast communication systems
02/23/1992CA2049615A1 Radio relay system, cordless telephone system, base station device, and radio system
02/20/1992WO1992002996A1 Modular radio communication system
02/20/1992WO1992002995A1 Process for the mobile reception of frequency-modulated stereo-multiplex signals
02/19/1992EP0471246A2 Digital cellular TDM system employing 6:1 packing of transcoded information
02/19/1992EP0471023A1 User activated memory programming authorization in a selective call receiver.
02/19/1992EP0290541B1 Hf radio communications system with frequency management
02/18/1992US5089341 High-sensitivity thermosensitive multilayer film and method for production of plate-making stencil sheet
02/13/1992DE4024178A1 Verfahren fuer den mobilen empfang von frequenzmodulierten stereo-multiplexsignalen Method for mobile reception of frequency-modulated stereo multiplex signals
02/12/1992EP0470831A2 Method for assigning telecommunications channels in a cellular telephone system
02/12/1992EP0470786A2 Electronic rotatable polarization antenna feed apparatus
02/12/1992EP0470126A1 Digital radio communication system and two way-radio.
02/12/1992CN2096171U Automatic recording controller for satellite ground receiving station
02/11/1992US5088108 Cellular digital mobile radio system and method of transmitting information in a digital cellular mobile radio system
02/11/1992CA1295755C Rapid reference acquisition and phase error compensation for radio transmission of data
02/11/1992CA1295731C Steerable beam antenna system using butler matrix
02/06/1992WO1992000632A3 Networked satellite and terrestrial cellular radiotelephone systems
02/05/1992EP0469114A1 A method for active feedback suppression
02/05/1992EP0248033B1 Multi-level power amplifying circuitry for portable radio transceivers
02/04/1992US5086508 Radio transceiver with transmission level control
02/04/1992US5086470 Scrambling in digital communications network using a scrambled synchronization signal
02/04/1992US5086452 Radio telephone system and its control method
02/04/1992US5086425 Arrangement for transforming data packets into a regular multiplex for a transmission system utilizing the tdma principle
02/04/1992US5086394 Introduction system for locating compatible persons
02/04/1992US5086301 Polarization converter application for accessing linearly polarized satellites with single- or dual-circularly polarized earth station antennas
02/04/1992CA1295434C Apparatus and method for obtaining frequency agility in digital communication systems
02/04/1992CA1295371C Data communication system having level control means
01/1992
01/29/1992EP0468688A2 Method and apparatus for providing wireless communications between remote locations
01/29/1992EP0468662A2 Plural frequency matrix multiplexer
01/29/1992EP0468025A1 Radio having removable memory means for storing radio user validation code
01/28/1992US5084900 Spread spectrum system with random code retransmission
01/28/1992US5084891 Technique for jointly performing bit synchronization and error detection in a TDM/TDMA system
01/28/1992CA1295020C Radio system for data transmission with one passive end
01/26/1992CA2041705A1 Method and apparatus for providing wireless communications between remote locations
01/23/1992WO1992001338A1 Receiver for communications satellite down-link reception
01/22/1992EP0467651A1 Satellite-based cellular communication system with position aided subscriber unit.
01/22/1992EP0467600A1 Radio link architecture for wireless communication systems
01/22/1992EP0467358A2 A demodulator and a polarization diversity receiver for coherent optical communication provided with the demodulator
01/22/1992EP0466843A1 Satellite communications system.
01/22/1992EP0358688A4 Method for dynamically allocating data channels on a trunked communication system
01/22/1992EP0264440B1 Method and apparatus for precision dynamic differential positioning
01/21/1992CA1294674C Communication system having a packet structure field
01/19/1992CA2021458A1 Passenger entertainment system for coaches
01/15/1992EP0466139A2 Mobile radio communication system
01/15/1992EP0466126A2 Method and apparatus for producing multiple, frequency-addressable scanning beams
01/15/1992EP0349603B1 Process and arrangement for equalizing dispersive, linear or approximately linear channels for transmitting digital signals
01/14/1992US5081703 Satellite mobile communication system for rural service areas
01/14/1992US5081464 Method and apparatus for producing multiple, frequency-addressable scanning beams
01/14/1992CA1294379C Method and arrangement for compensating shifts in delay produced by the doppler effect in bursts in a tdma frame
01/09/1992WO1992000639A1 System and method for generating signal waveforms in a cdma cellular telephone system
01/09/1992WO1992000632A2 Networked satellite and terrestrial cellular radiotelephone systems
01/09/1992CA2073336A1 Networked satellite and terrestrial cellular radiotelephone systems
01/08/1992EP0465457A2 System for providing adaptive channel frequencies in a tunnel
01/08/1992EP0464765A1 Space telecommunications system
01/08/1992EP0464314A2 Control device for radio communication apparatus
01/08/1992EP0464142A1 Paging terminal apparatus with user selectable page forwarding capability and methodology therefor.
01/07/1992CA1294074C Spread spectrum multiple access communication using satellite or terrestrial repeaters
01/07/1992CA1294073C Tdma radio system employing bpsk synchronization for qpsk signals subject to random phase variation and multipath fading
01/07/1992CA1294006C Signal diversity arrangement for mobile reception
01/07/1992CA1294004C Angle diversity signal separator using mode conversion
01/07/1992CA1293999C Earth station capable of effectively using a frequency band of asatellite
01/04/1992CA2046061A1 Space telecommunication system
01/02/1992EP0463665A1 Microwave vector modulator and device for matching a microwave load
01/02/1992EP0463625A2 Device operable with an excellent spectrum suppression
01/02/1992EP0463621A1 Receiver for digital radio signals
01/01/1992CN1057557A Method for regulating power in digital mobile telephony system
01/01/1992CN1057556A Radio communication system, particularly cellular mobile-radio system
12/1991
12/31/1991US5077761 Elastic buffer circuit
12/31/1991US5077759 Phase adjusting system for a radio communication system
12/31/1991US5077755 Digital signal processing system in modem
12/31/1991US5077741 Data throughput enhancement
12/31/1991US5077731 Telecommunication arrangement
12/31/1991CA1293773C Radio communications signal booster
12/29/1991CA2044450A1 Microwave vector modulator and device for matching a microwave load
12/28/1991WO1992000636A1 Satellite mobile communication system for rural service areas
12/28/1991CA2088052A1 Satellite mobile communication system for rural service areas
12/27/1991EP0462952A1 A method for regulating power in a digital mobile telephony system
12/27/1991EP0462601A2 Radiotelephone communication system
12/27/1991EP0462341A1 A synchronous frequency modulated booster system