Technique for sharing a plurality of transponders among a same o

Details Technique for sharing a plurality of transponders among a same o Technique for sharing a plurality of transponders among a same o

1978-09-05

1980-11-04

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 97, 455 12, 455 17, H04J 306

Patent

active

042322669

ABSTRACT:
A technique is disclosed for sharing a fixed number of identical transponders among a same or greater number of input and output signaling directions by rapidly scanning each transponder over appropriately defined group pairs of the input and output directions. The apparatus comprises n transponders having input and output terminals which are selectively and separately scanned over a plurality of m input and output signaling directions, respectively, by scanning means under the control of a controller. The scanning means can comprise separate m .times. n input and output matrix switches or a separate selectively changeable phase shifter at each antenna element which is connected to a summing and dividing means at the input and output terminal, respectively, of the associated transponder. An efficient TDMA slot assignment technique is also disclosed which covers nonuniform traffic requirements.

REFERENCES:
patent: 3928804 (1975-12-01), Schmidt et al.
patent: 3997729 (1976-12-01), Costales et al.
patent: 4145573 (1979-03-01), Arnold

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