Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1996-02-29
1998-09-15
Urban, Edward F.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455260, H04B 719, H04B 106
Patent
active
058093974
ABSTRACT:
A selective call messaging system comprises a control point satellite uplink (24) for transmission of source information to a satellite (12), the source information having timing information, a base station (16) for receiving the source information from the satellite and for retransmitting the source information to a receiver 18. A synchronization controller 29 is coupled to the receiver 18 and remotely coupled to the control point satellite uplink. The synchronization controller comprises a decoder (40) for decoding the timing information received from the base station to provide actual timing information, an absolute time source (28) that generates a reference time, a comparator (42) for comparing the actual timing information with the reference time to provide an offset signal (44) and a transmitter for forwarding the offset signal to the control point satellite uplink to adjust timing information at the control point satellite uplink.
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Harthcock Andrew Holloman
Perry Thomas Glenn
Sequeira Anselm Irenius
Thomsen Soeren Henrik
Bethards Charles W.
Bhattacharya Sam
Motorola Inc.
Urban Edward F.
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