Patents
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
12/1992
12/02/1992EP0504151A4 Satellite signalling system having a signal beam with a variable beam area
12/02/1992EP0500761A4 Diversity receiver in a cdma cellular telephone system
12/02/1992EP0489838A4 Battery saver for a tdm system
12/02/1992EP0464142A4 Paging terminal apparatus with user selectable page forwarding capability and methodology therefor
12/02/1992CN2123842U All-solid state two-direction microwave transmision equipment
12/01/1992US5168574 System and method for switching between antennas in a radio frequency booster
12/01/1992US5168510 Spread spectrum-time diversity communications systems and transceivers for multidrop area networks
12/01/1992US5168502 Method of information transmission in a network for data transmission over a radio channel and system for which the method is implemented
12/01/1992US5168498 Mobile communications system
12/01/1992US5168494 Method for transmitting a digital broadband signal in a tributary unit concatenation via a network of a synchronous digital multiplex hierarchy
11/1992
11/30/1992WO1992022161A1 Fully meshed cdma network for personal communications terminals
11/30/1992CA2108459A1 Fully meshed cdma network for personal communications terminals
11/29/1992WO1992022157A1 Power control of a direct sequence cdma radio
11/29/1992WO1992022142A1 Radio frequency error detection and correction system
11/26/1992WO1992021196A1 Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
11/26/1992WO1992021195A1 Dual mode transmitter and receiver
11/26/1992WO1992021183A1 Digital radio mobile frequency supervision
11/25/1992WO1992021184A1 Radio system with measurement and adjustment of transfer delay
11/25/1992EP0515335A2 Initial power control of mobile station transmission in a mobile radiotelephone system
11/25/1992EP0515214A1 Radio system with measurement and adjustment of transfer delay
11/25/1992EP0515029A1 Time-division multiplex communication system
11/25/1992EP0514813A2 Mobile telephone device wherein an adder supplies a sum of audio and out-of audio band signals to a compressor circuit
11/25/1992EP0514539A1 Spread spectrum cdma communications system
11/25/1992EP0514470A1 Multiple frequency scanning in a selective call communication system.
11/25/1992CN1066544A Satellite signalling system having signal beam with variable beam area
11/25/1992CN1066543A Satellite based global paging system
11/25/1992CN1066542A Satellite communications system
11/24/1992US5166642 Multiple accumulator fractional N synthesis with series recombination
11/24/1992CA1310725C Propagation time detecting system with use of detected phase difference of transmitted and received subcarrier
11/24/1992CA1310700C Trunked radio system having fleet queue alert
11/24/1992CA1310699C Ground-to-air telephone calling system and related method
11/24/1992CA1310696C Alternating sequential half duplex communication system
11/19/1992EP0514360A2 A communication system for integrating a paging system with cellular radio telephones
11/19/1992EP0514078A1 Signal relay device
11/19/1992EP0513895A2 Interactive display system
11/18/1992CN1066352A Interference detection technique
11/18/1992CA2068806A1 Initial power control of mobile station transmission in a mobile radiotelephone station
11/17/1992US5165057 Radio receiver antenna systems resistant to multiple path propagation fading
11/17/1992US5164985 Passive universal communicator system
11/17/1992US5164958 For handling off a transitioning-remote unit
11/17/1992US5164942 Antenna control for a wireless local area network station
11/17/1992CA2066946A1 Apparatus and method for synchronizing a plurality of remote transmission and receiving stations
11/17/1992CA1310371C Mechanism for deriving accurate frequency reference for satellite communications burst demodulator
11/17/1992CA1310370C Packet data communication system
11/17/1992CA1310369C Vehicle communication system using existing roadway loops
11/14/1992CA2102914A1 Dual mode transmitter and receiver
11/12/1992WO1992020166A1 Enhanced power level usage in a radiotelephone system
11/11/1992EP0512786A2 Integration of wireless paging in a communication system
11/11/1992EP0512712A2 Equaliser, operable in decision-feedback or fractional modes
11/11/1992EP0512711A2 Device for measuring the quantity of electricity stored in a battery
11/11/1992CN1066161A 卫星通信系统 Satellite communication system
11/10/1992US5163163 Diversity reception control circuit
11/10/1992US5163160 Satellite transponder able to use same frequency scheme for transmitter and receiver local oscillator
11/10/1992US5162719 Battery pack charger
11/05/1992DE4213605A1 Cordless telephone with communication channel connection - blocking speech until normal response to signal transmitted between auxiliary unit and main unit is obtained
11/04/1992EP0511861A2 Digital mobile station using presettable timeslot counter for compensating for propagation delay time
11/04/1992EP0511773A2 Equalizer for correcting frequency shift of centre frequency
11/04/1992EP0511614A2 Synchronization control circuit for TDMA cellular communication system
11/04/1992EP0511338A1 A radio transceiver system.
11/03/1992US5161252 Diversity antenna communication system
11/03/1992US5161248 Method of predicting cell-to-cell hand-offs for a satellite cellular communications system
11/03/1992US5161194 Satellite communications system operating in asynchronous mode for central-to-terminal station transmission
11/03/1992US5161168 Spread spectrum CDMA communications system microwave overlay
10/1992
10/30/1992WO1992020165A1 Interference detection technique
10/30/1992CA2064548A1 Power conservation in a radio data communication system
10/28/1992EP0511103A1 Information transmitting system between ground and mobil stations, especially in ground-train communications
10/28/1992EP0510848A2 Continuous reception of program channels by a mobile receiver unit
10/28/1992EP0510789A1 Cellular telephone satellite system
10/28/1992EP0510247A2 Method and apparatus for transmitting digital audio signals from audio studios to the individual transmitting stations of a terrestrial broadcasting network
10/28/1992EP0479950A4 Synchronization and equalization in a tdma cellular system
10/28/1992EP0454727A4 Active signalling transmitter control
10/28/1992CN1065765A Signal weighting system for digital receiver
10/27/1992US5159707 Diversity receiver
10/27/1992US5159705 Frequency synthesizer circuit
10/27/1992US5159695 Communication system to communication system communication system
10/27/1992US5159596 Mobile communication system
10/27/1992US5159565 Method for the determination of fir filter coefficients in equalizers
10/27/1992US5159479 Private branch radio communication system using optical fibers
10/27/1992US5159295 Microwave vector modulator and device for matching a microwave load
10/27/1992US5159283 Power amplifier
10/27/1992CA1309480C Packet-switched cellular telephone system
10/25/1992WO1992019483A1 System for transmitting data between the ground and moving vehicles, particularly in ground/train communication
10/25/1992CA2108755A1 System for transmitting data between the ground and moving vehicles, particularly in ground/train communication
10/24/1992CA2065659A1 Continuous reception of program channels by a mobile receiver unit
10/21/1992EP0509850A2 Cellular mobile communication system wherein service area is reduced in response to control signal contamination
10/21/1992EP0509776A2 Remote monitoring and controlling system for moving bodies
10/21/1992EP0509677A2 Radio receiver systems
10/21/1992EP0509072A1 A base station for a radio system.
10/21/1992CN1018789B Communication system having packet structure field
10/20/1992CA1309143C Apparatus and method for high speed determination of received rf signal strength indicator
10/16/1992WO1992019050A1 Global satellite communication system with geographic protocol conversion
10/15/1992WO1992017957A1 Method for multi-purpose utilization of resources in a communication system
10/15/1992WO1992017956A1 Method for providing reserved communication access using multiple random access resources
10/15/1992WO1992017954A1 Microcell system in digital cellular
10/15/1992WO1992017950A1 Auxiliary communication service routing
10/14/1992EP0507843A1 Paging system employing designated frame commencing information service data message transmission.
10/14/1992EP0507778A1 Paging system employing designated batch information service data message transmission.
10/14/1992EP0441944A4 Cellular radiotelephone communications system
10/14/1992EP0435964A4 Energy saving protocol for a communication system
10/14/1992CN1018699B Intersystem communication system