Synchronization technique for non-colocated TV signals in a TDMA

Details Synchronization technique for non-colocated TV signals in a TDMA Synchronization technique for non-colocated TV signals in a TDMA

1983-06-16

1986-03-04

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

455 12, H04J 306

Patent

active

045743797

ABSTRACT:
The present invention relates to a technique for the synchronization of multiplexed television signals within each burst signals received at a remote station or satellite in a TDMA communication system from non-colocated ground stations. The technique employs a dynamic master/slave ground station arrangement where a first station signing on assumes the role of the master ground station. Other stations subsequently signing on synchronize their transmissions to the master station signal burst or the signal burst of the last station to sign on by using apparatus which monitors the received burst from the remote station, measures its own signal delay to the distant station and then phase-locks its local subcarrier clock to the master or last station's transmission burst. Dynamic transfer to the second station signing on occurs when the current master station terminates transmission for any reason.

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patent: 3646444 (1972-02-01), Bitzer
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patent: 4346470 (1982-08-01), Alvarez, III et al.
patent: 4470093 (1984-09-01), Yamaura
Proc. IEEE, vol. 65, No. 3, Mar. 1977, "Synchronization Methods for TDMA" by Nuspl et al, pp. 434-443.
IEEE Trans. on Comm. Technology, vol. COM-16, No. 4, Aug. 1968, "Design of a Satellite Time-Division Multiple-Access Burst Synchronizer" by Gabbard, pp. 589-596.

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