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EP0899902A2 |
Method for transmission of measurement information from connected components to a central station in a point to multipoint communication system
The method involves transmitting synchronization information from connected components (KE) to a central arrangement (BS) with a transmission signal level (sp') smaller than a signal level (sp) for...
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EP0616444A2 |
Telecommunication system with ranging.
Telecommunication systems such as PON-FITL-Systems are known with a TDMA frame structure comprising a main station and a number of substations. The known systems can comprise means for coarse...
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4346470 |
Initial acquisition of synchronization for a station in a TDMA satellite communication network
A method and apparatus are disclosed for acquiring transmit synchronization at a secondary station with the periodic frame reference bursts from a reference station in a TDMA network in an improved...
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4320503 |
Synchronizing transmissions from two earth stations to satellite
A method of synchronizing the transmissions of alternate video fields or frames from two earth stations over a common uplink channel to a satellite so that the fields or frames arrive in...
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4252999 |
Signaling and ranging technique for a TDMA satellite communication system
The present invention relates to a technique for creating dedicated in-band, two-way, signaling channels between a master signaling ground station and each remote ground station of a satellite...
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4105973 |
Multibeam, digitally modulated, time division, switched satellite communications system
The present invention relates to a multibeam, digitally modulated, time division switched communication system especially for use with a satellite repeater wherein separate up-link and down-link...
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4010420 |
Satellite communications transmission apparatus and method
A satellite communication system wherein transmissions from a plurality of ground stations are transmitted via a satellite in a time-multiplex manner and where each station is assigned a particular...
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3958083 |
Acquisition system for the SDMA/TDMA satellite communication system
An acquisition system for the SDMA/TDMA satellite communication system is disclosed in which a synchronization signal receiving time slot and a plurality of data signal receiving time slots, for...
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3860921 |
SIMULTANEOUS ACQUISITION OF TRACKING DATA FROM TWO STATIONS
A method and apparatus is disclosed for obtaining simultaneous tracking data from two ground stations relative to a spacecraft, and in particular for obtaining two-way range and doppler...
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3852534 |
METHOD AND APPARATUS FOR SYNCHRONIZING PSEUDORANDOM CODED DATA SEQUENCES
A simple means is provided for maintaining synchronization between pseudodom generators at separate locations when a communication channel therebetween is being used on a time-shared,...
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3843843 |
A TIME DIVISION MULTIPLE ACCESS SYNCHRONIZATION TECHNIQUE
A transmitting station gains access to a time division multiple access communication system without interferring with existing system communications by transmitting frequency shift modulated narrow...
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3646444 |
METHOD AND APPARATUS FOR SYNCHRONIZING THE TRANSMISSION OF DIGITAL SIGNALS BETWEEN GROUND STATIONS VIA A COMMUNICATIONS SATELLITE
A method and apparatus for synchronizing the transmission of data between a plurality of ground stations via a satellite by transmitting a fixed frequency reference signal from a reference ground...
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3626295 |
TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM
A time division multiple access communication system including earth stations and a satellite station wherein each earth station includes a paired transmitter and receiver for acquisition and burst...
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