Thomas R Dobyns

US Patent:

42989795, Nov 3, 1981

Filed:

Sep 27, 1979

Appl. No.:

6/079655

Inventors:

Thomas R. Dobyns - Frederick MD
Richard R. Lindstrom - Brunswick MD
Robert P. Ridings - Walkersville MD

Assignee:

Communications Satellite Corporation - Washington DC

International Classification:

H04J 306

US Classification:

370104

Abstract:

A multiplexing/demultiplexing bus structure for a TDMA communications system employs a mapping RAM in common equipment and a decoding device in a plurality of interface modules. The common equipment provides identical encoded information to each of the decoders in the interface modules, the decoders in each of the interface modules determining whether or not incoming or outgoing data is to be written into or read from the associated interface module. The decoders initiate a count to provide an address for the data written into or read out of a buffer in the associated interface module. The common equipment can thereby provide burst-to-burst selection of data. Burst and/or channel allocation may be changed in real time for any of the interface modules through a "demand assignment" process. A central network controller receives all capacity and destination requests for processing. The controller can then send capacity and destination assignments to network stations where they are received and decoded.

US Patent:

45817367, Apr 8, 1986

Filed:

Mar 1, 1983

Appl. No.:

6/471367

Inventors:

Thomas R. Dobyns - Frederick MD
Tamotsu Inukai - Gaithersburg MD

Assignee:

Communications Satellite Corporation - Washington DC

International Classification:

H04Q 360

US Classification:

370 92

Abstract:

In a TDMA satellite communications system with a plurality of transponders and a network of satellite communication controller (SCC) terminals, a data aggregator which may be attached to a local SCC. The data aggregator simultaneously receives TDMA frames from at least two transponders and aggregates locally addressed traffic channels into a TDMA pseudo-frame for delivery to the SCC.