Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 7 - Radio transmission systems, i.e. using radiation field
Patents for H04B 7 - Radio transmission systems, i.e. using radiation field (186,426)
06/1993
06/29/1993US5224120 Dynamic capacity allocation CDMA spread spectrum communications
06/29/1993US5223846 Multiple-beam transmission system
06/27/1993CA2086304A1 Communication satellite network
06/24/1993WO1993012598A1 Combination of two signals, the second appearing as a noise for the first one
06/24/1993WO1993012597A1 Spread-spectrum data publishing system
06/24/1993WO1993012590A1 Spatial division multiple access wireless communication systems
06/24/1993WO1993012587A1 Cellular radio system
06/24/1993WO1993012586A1 Process for improving the coverage of radio cells in a cellular mobile radio system and device for implementing it
06/24/1993CA2086081A1 Satellite system cell management
06/23/1993EP0547078A1 Power amplifier.
06/23/1993CN1073560A Wireless audio calling system working at broadcast frequency range
06/23/1993CN1073559A Communication system of vertical shaft for mine
06/22/1993US5222254 Receiver including means for acquisition and comparison of identification data of two transmission channels
06/22/1993US5222251 Method for eliminating acoustic echo in a communication device
06/22/1993US5222246 Parallel amplifiers with combining phase controlled from combiner difference port
06/22/1993US5222107 Transmission and reception synchronization device for a communication network station particularly for automotive vehicles
06/22/1993US5222101 Phase equalizer for TDMA portable radio systems
06/22/1993US5222078 Data signal compensation apparatus for use in a receiver
06/22/1993CA2019000C Cellular telephone responsive to service availability for operating on different cellular telephone systems
06/17/1993WO1993012608A1 Minimization of facsimile data loss during cellular handoff
06/17/1993DE4141398A1 Verfahren zur verbesserung der funkzellenausleuchtung bei eimen zellularen mobilfunksystem und vorrichtung zur ausuebung des verfahrens Method for improvement of radio-cell illumination at eimen cellular mobile radio system and apparatus for performing the method
06/17/1993DE4140741A1 Duplex diversity operation of vehicular mobile radio installation - comparing buffered radiotelephone reception quality signals for actuation of transistor-switched antenna selection relay
06/16/1993EP0546806A1 A method for space diversity reception
06/16/1993EP0546758A2 Mobile unit tracking system
06/16/1993EP0546720A1 Reduced interference through offset frequency partioning in cellular communication systems
06/16/1993EP0546445A2 Method for controlling a digital, cellular mobile communication network and mobile communication network using that method
06/15/1993US5220680 Frequency signal generator apparatus and method for simulating interference in mobile communication systems
06/15/1993US5220678 Method and apparatus for adjusting the power of a transmitter
06/15/1993US5220564 Transmission control for a wireless local area network station
06/15/1993US5220320 Switch matrix including both B switching elements and crossbar switch matrices
06/15/1993EP0573417A4 Shared-carrier frequency-hopping.
06/10/1993WO1993011618A1 Feedback communications link controller
06/10/1993WO1993011482A1 A real-time running averaging device
06/10/1993CA2124855A1 A real-time running averaging device
06/09/1993EP0545636A1 GPS tracking system
06/09/1993EP0545546A2 Digital GMSK transceiver
06/09/1993EP0545311A2 Electronic circuit readily capable of controlling extent of a radio communication zone
06/09/1993EP0545225A2 Digital communication system using superposed transmission of high speed and low speed digital signals
06/09/1993EP0545159A2 Digital radio transmission method with channel impulse response estimation
06/09/1993EP0545088A2 Radio telephone system with data communication capability and radio communication method
06/09/1993EP0515610A4 Adaptive power control for a spread spectrum transmitter
06/09/1993EP0514470A4 Multiple frequency scanning in a selective call communication system
06/09/1993EP0507843A4 Paging system employing designated frame commencing information service data message transmission
06/09/1993EP0507778A4 Paging system employing designated batch information service data message transmission
06/09/1993EP0493449A4 Random access multiple user communication system
06/09/1993CN2135883Y Signal generator and receiving device attached single sideband radio station
06/09/1993CN1073062A Mixed signal processing system and method for powering same
06/09/1993CN1073061A Mobile communications device registration method
06/08/1993US5218717 Simulcast transmission system with improved synchronizing system
06/08/1993US5218715 Multi-donor booster operation and system
06/08/1993US5218619 CDMA subtractive demodulation
06/08/1993US5218467 Multi-access laser communications transceiver system
06/08/1993US5218359 Adaptive array antenna system
06/03/1993DE4139059A1 Channel response evaluation for digital transmission system - uses semi-perfect cyclic auto-correlation function to obtain channel response at output of matched filter
06/02/1993EP0544463A2 Coded modulation, with unequal error protection, for fading channels
06/02/1993EP0544313A2 Cross polarization interference canceller
06/02/1993EP0543857A1 Modular radio communication system.
06/02/1993CN1072808A Communicating and controlling method for motor vehicle in running
06/01/1993US5216692 Method and apparatus for adjusting a power control threshold in a communication system
06/01/1993US5216434 Diversity receiving apparatus
06/01/1993US5216427 Land-mobile satellite communication system
06/01/1993CA2006829C Self-adaptive equalizer circuit for a differentially coherent demodulation installation
05/1993
05/27/1993WO1993010619A1 Inbuilding telephone communication system
05/27/1993WO1993010609A1 Adaptive power control for a spread spectrum communications system and method
05/27/1993CA2121602A1 Inbuilding telephone communication system
05/26/1993EP0543644A2 Command authentication process between a master and a slave station encrypted messages
05/26/1993EP0543549A2 Data decoding device
05/26/1993EP0543328A1 Automatic equalizer capable of effectively cancelling intersymbol interference and cross polarization interference in co-channel dual polarization
05/26/1993CN1072545A Correlation processing receiver
05/25/1993US5214793 Electronic billboard and vehicle traffic control communication system
05/25/1993US5214675 System and method for calculating channel gain and noise variance of a communication channel
05/25/1993CA1318357C Radio telecommunication apparatus
05/22/1993CA2077834A1 Command authentication process
05/19/1993EP0542633A1 Modulator, especially for digital cellular telephone system
05/19/1993EP0542615A1 Converter for reception of satellite broadcasting
05/19/1993EP0541767A1 Enhanced power level usage in a radiotelephone system.
05/19/1993DE4231198A1 Receiver with switching diversity and several aerials - has attenuation control determining induced voltage level of selected aerial output signal.
05/19/1993CN1072299A Integrated cellular communications system
05/19/1993CN1072298A Quasi-radiotelephone system
05/19/1993CN1072297A Radio frequency data communications networks
05/18/1993US5212836 Power source control circuitry for an automotive portable telephone
05/18/1993US5212831 Method and apparatus for autonomous adaptive frequency assignment in TDMA portable radio systems
05/18/1993US5212823 Radio communication system
05/18/1993US5212809 Radio communication system
05/18/1993US5212804 Communication system having multiple base stations and multiple mobile units
05/18/1993US5212803 Method for reducing equalizer usage in mobile radio communication systems
05/18/1993US5212689 Method of transmitting different commands relating to the choice of transmitter antenna in a time multiplex radio communications system
05/18/1993CA2025264C Method and system for testing mobile communication system
05/13/1993WO1993009631A1 Information broadcasting system and method
05/13/1993WO1993009624A1 Switching methods for satellite communication system
05/13/1993WO1993009614A1 Beam compensation methods for satellite communication system
05/13/1993WO1993009613A1 Satellite communication system
05/13/1993WO1993009578A1 Spacecraft antennas and beam steering methods for satellite communication system
05/13/1993WO1993009577A1 Terrestrial antennas for satellite communication system
05/13/1993WO1993009493A1 A wireless communication system
05/13/1993CA2121675A1 Terrestrial antennas for satellite communication system
05/13/1993CA2121587A1 Satellite communication system
05/13/1993CA2121586A1 Switching methods for satellite communication system
05/13/1993CA2121350A1 Spacecraft antennas and beam steering methods for satellite communication system
05/13/1993CA2121349A1 Beam compensation methods for satellite communication system
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