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)
12/1985
12/24/1985US4561099 Clock recovery system for TDMA satellite communication system
12/24/1985US4561067 Multi-channel cross-talk interference reduction circuit using modulation-multiplying-demodulation correlator
12/18/1985EP0165058A2 Communication systems with portable units
12/18/1985EP0164758A2 Device for predicting unique word detection positions in a TDMA station by using latest valid detection positions
12/18/1985EP0164401A1 Improved wide area coverage ratio communications system and method
12/17/1985US4559635 Auto-adaptive amplitude-equalizing arrangement for digital radio links
12/17/1985US4559503 Amplifier for correcting group time delay of electrical signals and an intermediate frequency amplifier stage for radio equipment comprising an amplifier of this kind
12/17/1985CA1198169A1 Digital radio systems
12/17/1985CA1198168A1 Power supply systems for use in radio communication system
12/11/1985EP0163994A2 Receive data processing device for TDMA satellite communications network
12/05/1985WO1985005515A1 Method for performing speech-detection in scpc systems
12/04/1985EP0163322A2 SCPC communication system including a voice-activated transmission power controller
12/03/1985CA1197640A1 Equipment for wireless telephone transmission
11/1985
11/27/1985EP0162478A2 Method and apparatus for high speed satellite communication
11/26/1985US4555806 System for the automatic establishment of a shortwave telegraphy signal connection
11/26/1985US4555782 Base-band equipment for ground stations of satellite telecommunication system
11/26/1985CA1197293A1 System for adjusting a time axis by using a control and an adjustment time slot in a satellite station of a tdma network
11/21/1985WO1985005240A1 A two way personal message system with extended coverage
11/21/1985WO1985005235A1 A method and circuit arrangement for the realization of pcm-channel units of scpc satellite-communication systems
11/21/1985EP0161669A2 State information communication in a TDMA satellite communication network with high frame availability
11/21/1985EP0161649A2 Station relief arrangement for use in relieving operation of a reference station in a TDMA network without reduction of frame availability
11/19/1985US4554669 Frequency jump radiocommunications system with interburst redundancy
11/19/1985US4554668 Frequency-hopping radio communications system
11/19/1985US4554542 Guard tone capture method
11/19/1985US4554410 System for maintenance and diagnosis of mobile telephone equipment
11/19/1985CA1197031A1 Method and an equipment for transmission of telephone calls to a portable, wireless telephone set
11/19/1985CA1196961A1 Earth station transmission power control system for keeping an eirp of down link signals constant irrespective of weather
11/13/1985EP0160993A2 Radio-system
11/07/1985WO1985004996A1 A cross-polarization interference cancellation arrangement for digital radio channels
11/06/1985EP0160247A2 Supervising and controlling system for a communication station in a TDMA communication system
11/05/1985US4551835 In a communications controller
10/1985
10/30/1985EP0159423A1 Improved communications system and network
10/29/1985US4550443 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system
10/22/1985US4549311 Method and apparatus for measuring the strength of a radio signal frequency
10/22/1985US4549308 Secure mobile radio telephony
10/22/1985US4549293 Time division multiple access communications system
10/16/1985EP0158383A1 Device for deciphering and decoding television pictures coded according to the MAC standard and scrambled by application of circular permutations to the video signals
10/16/1985EP0158327A2 Space diversity communications system for multi-direction time division multiplex communications
10/15/1985US4547778 Method and apparatus for automatic distress call signal transmission
10/15/1985CA1195444A1 System for compensating polarization errors
10/08/1985CA1194990A1 Automatic television antenna control system
10/08/1985CA1194933A1 Radio signal transmission system including a plurality of transmitters for transmitting a common signal
10/02/1985EP0156765A1 Radio-system for transmitting data signals independently of speech signals from plural substations to a main station
10/02/1985EP0156213A2 Apparatus and method for providing a transparent interface across a satellite communications link
10/01/1985US4545071 Portable radio for a zoned data communications system communicating message signals between portable radios and a host computer
10/01/1985EP0127641A4 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system.
09/1985
09/25/1985EP0155776A1 Digital navstar receiver
09/24/1985CA1194162A1 Arrangement for microwave transmission between two bodies which are rotatable relative to each other
09/17/1985CA1193674A1 Two pilot frequency control for communication systems
09/11/1985EP0154338A2 Precipitation loss compensation and disablement for avoidance of satellite transponder overloading
09/11/1985EP0154288A2 Method of transmitting terminating call signals within a restricted duration and a base station and a portable unit for use in the same
09/11/1985EP0154264A2 High-speed burst signal monitoring device
09/03/1985US4539710 Diversity telemetry receiver having plural spaced antennas
09/03/1985US4539706 Mobile vehicular repeater system which provides up-link acknowledgement signal to portable transceiver at end of transceiver transmission
09/02/1985EP0128933A4 Improved isolation method and apparatus for a same frequency repeater.
08/1985
08/28/1985EP0153264A1 Data broadcasting system, especially towards mobile stations
08/27/1985US4538175 Receive only earth satellite ground station
08/27/1985US4538153 Directivity diversity communication system with microstrip antenna
08/27/1985US4538125 Device for microwave transmission between two bodies which are rotatable relative to each other
08/21/1985EP0152108A2 Synchronizing burst transmission phase control system
08/21/1985EP0151916A2 Automatic gain control circuit
08/20/1985EP0097180A4 A distributed control communications system.
08/15/1985WO1985003608A1 Switched diversity method and apparatus for fm receivers
08/13/1985US4535333 Transmitter and receiver for controlling remote elements
08/07/1985EP0150880A2 Demodulator using phase-locked loop
07/1985
07/30/1985US4532637 Differential receiver
07/30/1985US4532635 System and method employing two hop spread spectrum signal transmissions between small earth stations via a satellite and a large earth station and structure and method for synchronizing such transmissions
07/30/1985CA1191205A1 Repeater station for use in a radio relay system to protect time deviations of time slots
07/24/1985EP0149136A1 Programmable timing and synchronization circuit for a TDMA communications controller
07/24/1985EP0148920A1 A homotropic antenna system for a portable radio
07/23/1985US4531235 Diversity signal strength indicator and site selection apparatus for using same
07/23/1985US4531208 Apparatus and method for reducing telephone channel power loading
07/17/1985EP0148258A1 Signal quality steered diversity
07/16/1985US4530087 Space diversity receiving system for multi-direction time division multiplex communication
07/16/1985US4529980 Transmitter and receiver for controlling the coding in a transmitter and receiver
07/10/1985EP0148016A2 Interference wave detection circuit for use in radio receiver
07/10/1985EP0147869A2 Electronic circuit capable of keeping a frequency stable during presence of a burst
07/10/1985EP0147433A1 Diversity signal strength indicator and site selection apparatus for using same
07/09/1985US4528697 Broadband quadrature phase modulator for control loop error generation in an IF combiner
07/09/1985US4528656 Radio communication system using frequency division multiplexing for transmission between a master station and a plurality of remote stations
07/02/1985US4527284 Adjacent radio cells paging channel chaining system
07/02/1985US4527275 Correlation data communications system
07/01/1985EP0094420A4 Data muting method and apparatus for radio communications systems.
06/1985
06/25/1985US4525869 Diversity receiver
06/25/1985US4525861 Zoned data communications system for communicating message signals between portable radios and a host computer
06/25/1985US4525835 Duplex radio system utilizing time compression expansion
06/25/1985US4525793 Voice-responsive mobile status unit
06/25/1985CA1189571A1 Service channel signal transmission system
06/20/1985WO1985002745A1 Improved wide area coverage ratio communications system and method
06/20/1985WO1985002738A1 Portable telephone id code transfer system
06/19/1985EP0144665A2 Method and system for establishing a telephone connection with a mobile suscriber
06/12/1985EP0144072A2 Subscriber line radio concentration system
06/11/1985CA1188740A1 Vhf sensor in-band radio relay
06/05/1985EP0143458A2 Radio communication system operable in cooperation with a vox system
06/04/1985US4521878 Data transmitting-receiving system
06/04/1985CA1188387A1 Airwave telecommunication method and system
05/1985
05/29/1985EP0142789A2 Radio relay method and apparatus for digital communication
05/23/1985WO1985002309A1 Diversity combiner
05/22/1985EP0141994A1 Mobile radio telephone network
05/21/1985US4519096 Large dynamic range multiplier for a maximal-ratio diversity combiner
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