Patents
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
11/1997
11/05/1997CN1164170A Space division multiple access radio communication system and method for allocating channels therein
11/05/1997CN1164149A Satellite communication method
11/04/1997US5684806 Communication apparatus for TDMA system
11/04/1997US5684794 Validation of subscriber signals in a cellular radio network
11/04/1997US5684793 Base station receiver equipment
11/04/1997US5684790 Mobile communication system
11/04/1997US5684753 Synchronous data transfer system
11/04/1997US5684491 High gain antenna systems for cellular use
11/04/1997CA2087845C Apparatus and method for generating a transition between the on and off states of a radio frequency transmitter
11/04/1997CA2078406C Quadrature modulator for tdma/tdd radio communication apparatus.
10/1997
10/30/1997WO1997040639A1 Method and apparatus for tdma wireless communication employing collector arrays for range extension
10/30/1997WO1997040597A1 Synchronization method, and associated circuitry, for synchronizing a receiver with a transmitter
10/30/1997WO1997040594A1 Dividable transmit antenna array for a cellular base station and associated method
10/30/1997WO1997040593A1 Code-rate increased compressed mode ds-cdma systems and methods
10/30/1997WO1997040592A1 Multi-code compressed mode ds-cdma systems and methods
10/30/1997WO1997040590A1 Distribution of radio-frequency signals through low bandwidth infrastructures
10/30/1997WO1997040589A1 Method and apparatus for interference decorrelation in time and space
10/30/1997WO1997040588A1 Method and apparatus for interference rejection with different beams, polarizations, and phase references
10/30/1997WO1997040584A1 Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver
10/30/1997WO1997040398A2 Spread spectrum receiver with multi-bit correlator
10/30/1997WO1997035408A3 Message collision arbitration using minislots
10/30/1997DE19714967A1 Diversity process for radio system with typical fading duration of seconds
10/30/1997DE19713441A1 Digital quadrature modulation signal parameter measuring apparatus
10/30/1997DE19640450C1 Base station with fast channel switching for TDMA/FDMA radio communications system
10/30/1997CA2252903A1 Spread spectrum receiver with multi-bit correlator
10/30/1997CA2252382A1 Multi-code compressed mode ds-cdma systems and methods
10/30/1997CA2252101A1 Method and apparatus for interference decorrelation in time and space
10/30/1997CA2251910A1 Method and apparatus for tdma wireless communication employing collector arrays for range extension
10/30/1997CA2251843A1 Method and apparatus for interference rejection with different beams, polarizations, and phase references
10/30/1997CA2250248A1 Synchronization method, and associated circuitry, for synchronizing a receiver with a transmitter
10/30/1997CA2249583A1 Dividable transmit antenna array for a cellular base station and associated method
10/29/1997EP0804007A2 Adaptive equalizer with step size proportional to the estimated delay between received signals
10/29/1997EP0803994A2 Method to obtain and synchronize the radio multiframe number in DECT cordless systems
10/29/1997EP0803993A2 Method and apparatus for switching spread spectrum/code division multiple access modulated beams
10/29/1997EP0803992A2 Method and apparatus for switching code division multiple access modulated beams
10/29/1997EP0803991A1 Method for optimising radio communication between a base station and a mobile
10/29/1997EP0803973A1 Linear power amplifier with automatic gate/base bias control for optimum efficiency
10/29/1997EP0803959A2 Battery monitoring
10/29/1997EP0803930A2 Antenna system for controlling and redirecting communication beams
10/29/1997EP0803929A1 Loaded antenna
10/29/1997EP0803742A2 Geolocation method and apparatus for satellite based telecommunications system
10/29/1997EP0803166A1 Portable cellular telephone using spread spectrum communication with mobile transceiver
10/29/1997EP0803155A1 An adaptor card providing conditional access
10/29/1997EP0803097A1 Automatic cellular phone battery charging by mobile personal computer
10/29/1997CN1163691A Method and arrangement in mobile unit
10/29/1997CN1163526A Equipment, method and system for radio communication
10/29/1997CN1163518A Transmitting and receiving for radio signal
10/28/1997US5682603 Start-up method for mobile transceivers, mobile transceivers and fixed transceivers thereof
10/28/1997US5682417 Power saving mobile data communication system using adaptors
10/28/1997US5682416 Method and apparatus communication handover in a communication system
10/28/1997US5682403 Spread spectrum communication network signal processor
10/28/1997US5682382 Scalable, self-organizing packet radio network having decentralized channel management providing collision-free packet transfer
10/28/1997US5682139 Railcar location using mutter networks and locomotive transmitter during transit
10/23/1997WO1997039597A1 Method for measuring intermodulation
10/23/1997WO1997039557A1 Pilot-symbol-assisted radiotelephone communications
10/23/1997WO1997039550A2 Equalizer with a sequence estimation method with state reduction for a receiver in a digital transmission system
10/23/1997WO1997039545A1 Method and instrument for measuring receiving sir and transmission power controller
10/23/1997WO1997039537A1 System and method for reducing interference generated by a digital communication device
10/23/1997WO1997039536A1 Equalizer with extended channel estimation for a receiver in a digital transmission system
10/23/1997WO1997039493A1 Portable radio device
10/23/1997WO1997039433A2 Method and apparatus for real-time ionospheric mapping and dynamic forecasting
10/23/1997WO1997032406A3 Method for controlling a base station, and a base station
10/23/1997WO1997031433A3 Method and apparatus for dynamically selecting the length of mobile station burst communications on the reverse digital control channel
10/23/1997WO1997029597A3 Checking the presence of mobile stations communicating on a direct mode channel
10/23/1997CA2251830A1 System and method for reducing interference generated by a digital communication device
10/23/1997CA2248637A1 Pilot-symbol-assisted radiotelephone communications
10/22/1997EP0802696A1 Retransmission control method for cdma mobile communication
10/22/1997EP0802691A2 Network system for mobile radio communication
10/22/1997EP0802658A2 Mobile terminal having improved user interface
10/22/1997EP0802639A2 System and method for routing ground-to-air telephone calls
10/22/1997EP0802638A2 Method and apparatus for controlling power in a forward link of a CDMA telecommunications system
10/22/1997EP0801876A2 Position registration for mobile phones
10/22/1997EP0801872A2 Radio system for cordless subscriber line interface
10/22/1997EP0801870A2 Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase time and energy
10/22/1997EP0801857A1 Method for substituting bad speech frames in a digital communication system
10/22/1997EP0801856A1 Spread-spectrum system and method
10/22/1997EP0801853A2 High-speed data transmission in mobile communication networks
10/22/1997EP0801850A1 Cellular communications power control system
10/22/1997EP0775386A4 Compensation for multi-path interference using pilot symbols
10/22/1997EP0746915B1 Allocation of time slots in a mobile communication system
10/22/1997EP0712551B1 Universal mobile telecommunications system
10/22/1997EP0641450A4 Electronic system and method for remote identification of coded articles and the like.
10/22/1997EP0521123B1 Aerial diversity installation with at least two aerials for the mobile reception of metre and decimetre waves
10/22/1997EP0476127B1 Cellular communications system
10/22/1997CN1163027A Dual-mode satellite/cellular phone with a frequency synthesizer
10/22/1997CN1163024A Signal detection in a TDMA system
10/22/1997CN1162881A Radio transmission system
10/22/1997CN1162878A Radio receiver
10/22/1997CN1162877A Radio receiver
10/22/1997CN1036238C Radio selective call receiver
10/22/1997CN1036237C Method of detecting a paging channel in a multi-frequency radio pager network
10/21/1997US5680440 Registration and connection in a communication network
10/21/1997US5680419 Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems
10/21/1997US5680370 Synchronous DRAM device having a control data buffer
10/21/1997US5680369 Synchronous dynamic random access memory device
10/21/1997US5680368 Dram system with control data
10/21/1997US5680367 Process for controlling writing data to a DRAM array
10/21/1997US5680358 System transferring streams of data
10/21/1997US5680240 High capacity communications satellite
10/21/1997US5680142 Communication system and method utilizing an antenna having adaptive characteristics