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)
10/1984
10/23/1984US4479215 Power-line carrier communications system with interference avoidance capability
10/11/1984EP0115528A4 Method and apparatus for assigning duplex radio channels and scanning duplex radio channels assigned to mobile and portable radiotelephones in a cellular radiotelephone communications system.
10/11/1984EP0114890A4 Method and apparatus for measuring the strength of a radio frequency signal.
10/02/1984US4475243 Isolation method and apparatus for a same frequency repeater
10/02/1984US4475242 Microwave communications system
10/02/1984US4475010 High density cellular mobile radio communications
10/02/1984CA1175492A1 Cross-polarization crosstalk elimination circuit
09/1984
09/26/1984EP0119841A2 Redundant switchover system for a TDMA satellite communication equipment
09/26/1984EP0030551B1 A technique for increasing the rain margin of a communication system
09/25/1984US4473828 Microwave transmission device with multimode diversity combined reception
09/19/1984EP0118997A2 Direct relay equipment
09/18/1984US4472802 System of transmitting information between a central station and sub-stations
09/12/1984EP0118357A1 Electronic antenna array for a cellular radio telephone network with fixed base stations, and with mobile and portable units
09/11/1984US4471491 Service channel signal transmission system
09/05/1984EP0117723A2 Radio communications systems
09/05/1984EP0117593A1 A method of and a system for remote control of electronic equipments
09/04/1984US4470148 Satellite-receiver time division multiple-access burst duration and guard space monitor
09/04/1984US4470141 Multi-direction time division multiplex communication system
09/04/1984CA1173910A1 Radiotelephone with hands-free operation
08/1984
08/29/1984EP0116990A1 Autoadaptive amplitude equalizing apparatus for digital microwave links
08/29/1984EP0116577A1 Data signalling system.
08/28/1984US4468813 Digital voice storage system
08/22/1984EP0116064A1 General purpose data control terminal
08/15/1984EP0115528A1 Method and apparatus for assigning duplex radio channels and scanning duplex radio channels assigned to mobile and portable radiotelephones in a cellular radiotelephone communications system.
08/15/1984EP0115507A1 General purpose data control system.
08/15/1984EP0115499A1 Selective call paging and priority signalling system.
08/14/1984US4466134 Intermediate frequency slope compensation control arrangements
08/14/1984US4466133 Radio receiver apparatus including multipath fade compensating arrangement
08/14/1984US4466132 Cross-polarization crosstalk elimination circuit
08/14/1984US4466131 Automatic separation system
08/14/1984US4466130 Two pilot frequency control for communication systems
08/14/1984US4466125 Communication control system
08/14/1984US4466096 In a communications system
08/14/1984CA1172700A1 Arrangement for cellular operation of mobile radio in a repeater trunking system
08/08/1984EP0115385A2 Radio communication system
08/08/1984EP0115151A2 Phase difference measurement receiver
08/08/1984EP0115139A2 Improvements in or relating to radio communication apparatus and systems
08/08/1984EP0114890A1 Method and apparatus for measuring the strength of a radio frequency signal.
08/01/1984EP0114678A2 Base-band equipment for earth stations of a time division multiple access satellite transmission system
07/1984
07/25/1984EP0114066A2 Automatic gain control circuit for burst signal communication system
07/24/1984US4462113 Cordless transmitting and receiving apparatus
07/24/1984CA1171537A1 Method and apparatus for processing a digital signal for transmission
07/24/1984CA1171468A1 Multipath fade equaliser
07/24/1984CA1171462A1 Device for automatically monitoring an independent current supply
07/19/1984WO1984002815A1 Activation in a digital subscriber connection
07/18/1984EP0113571A1 Linear distortion canceller circuit
07/11/1984EP0112844A1 Method and apparatus for encrypted radio communications.
07/10/1984US4459474 Identification system with separation and direction capability and improved noise rejection
07/10/1984CA1170793A1 Satellite communications system
07/05/1984WO1984002626A1 Improved isolation method and apparatus for a same frequency repeater
07/04/1984EP0112477A1 Apparatus for multiplexing and demultiplexing data sources
06/1984
06/27/1984EP0112108A2 Radio systems
06/27/1984EP0112039A2 Microwave transmitter and communications system
06/27/1984EP0111973A2 Monitoring an existing radio link between a fixed and a mobile radio station
06/27/1984EP0111931A2 Cross-polarization distortion canceller for use in digital radio communication receiver
06/26/1984US4456988 Satellite repeater
06/26/1984US4456793 Cordless telephone system
06/21/1984WO1984002443A1 Guard tone capture method
06/21/1984WO1984002437A1 Method and apparatus for synchronizing radio transmitters for synchronous radio transmission
06/21/1984WO1984002436A1 Method of setting radio transmitters for synchronous radio transmission
06/21/1984WO1984002435A1 Digital voice storage system
06/21/1984WO1984002434A1 Digital voice storage mobile
06/20/1984EP0110888A1 A cordless telephone system.
06/20/1984EP0032511B1 Signal combiner
06/19/1984US4455651 Satellite communications system and apparatus
06/19/1984US4455650 System of beacons for the transmission of information
06/19/1984US4455454 Telephone transmission system on a road-vehicle
06/13/1984EP0110726A2 Method and system for transmitting and receiving data
06/13/1984EP0110648A1 Synchronization apparatus in redundant time-division-multiple-access communication equipment
06/13/1984EP0110392A2 Digital radio transmission system
06/13/1984EP0110368A2 Burst signal transmission system
06/12/1984CA1169169A1 Method of and system for satellite-switched time- division multiple access
06/12/1984CA1169168A1 Method and apparatus for relaying signals between a ground station and a satellite using a ground relay station
05/1984
05/29/1984US4451699 Communications system and network
05/29/1984CA1168312A1 Technique for high rate digital transmission over a dynamic dispersive channel
05/29/1984CA1168310A1 Relay system for staged data transmission
05/24/1984WO1984002044A1 Microwave communications system
05/24/1984WO1984002043A1 Method and apparatus for dynamically selecting transmitters for communications between a primary station and remote stations of a data communications system
05/23/1984EP0108816A1 A field component diversity antenna arrangement
05/22/1984US4450585 Signal switching and combining systems for diversity radio receiving systems
05/22/1984US4450582 Method and apparatus for increasing the capacity of a satellite transponder by reuse of bandwidth
05/16/1984EP0037813B1 Single sideband receiver with pilot-based feed forward correction for motion-induced distortion
05/15/1984US4449128 Radio frequency transmitter coupling circuit
05/10/1984WO1984001832A1 Method and apparatus for deriving pseudo range from earth-orbiting satellites
04/1984
04/25/1984EP0106400A1 System identification in communications systems
04/25/1984EP0106302A2 Circuit for compensating non-linear signal distortions
04/24/1984CA1166366A1 Baton passing method and apparatus for maintaining synchronization in a tdma satellite communication system
04/24/1984CA1166316A1 Cellular high capacity mobile radiotelephone system with fleet-calling arrangement for dispatch service
04/17/1984US4443661 Method of detecting troubles in a receiver for a common control channel of a mobile radio telephone communication system and a system therefor
04/17/1984CA1165819A1 Diversity radio transmission system having a simple and economical structure
04/10/1984US4442531 Method and apparatus for recognizing digital information in digital information transmission, particularly in mobil radio communications systems
04/10/1984US4442426 Signal transmission
04/10/1984CA1165477A1 Time domain multiple access broadcasting multipoint, and conferencing communication apparatus and method
04/10/1984CA1165401A1 Receive only earth satellite ground station
04/04/1984EP0104695A1 Polymer composition
04/04/1984EP0104206A1 Frequency-hopped single sideband mobile radio system.
04/03/1984US4441184 Method and apparatus for transmitting a digital signal
03/1984
03/27/1984CA1164589A1 System for the transmission of digital data in packets
03/27/1984CA1164588A1 Frequency division communication system wherein conventional transmitter-transceiver can be used as or repeater or local base station
03/20/1984US4438530 Adaptive cross-polarization interference cancellation system
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