Satellite broadcast communications system

Details Satellite broadcast communications system Satellite broadcast communications system

1996-03-26

1998-11-17

Kizou, Hassan

Multiplex communications

Communication over free space

Message addressed to multiple destinations

370349, 370316, 455 121, H04J 324

Patent

active

058386688

ABSTRACT:
A satellite broadcast communications system, in which a host station sends packet-multiplexed signals to a plurality of terminal stations via a communications satellite, specifically improving efficiency in data retransmission operations without sacrificing the channel capacity of the satellite communications link. Broadcast schedule transmission means transmits the broadcast schedule, which contains the title and transmission time of each transmission data, to every terminal station via the communications satellite. Based on the broadcast schedule, composite information transmission means broadcasts various data to the terminal stations. Broadcast schedule reception means receives the broadcast schedule, and based on the received broadcast schedule, desired information reception means selectively receives desired information at the scheduled transmission time. Further, vacant time slot detection means examines the broadcast schedule to find vacant time slots in which no transmission is scheduled, and broadcast schedule production means rearranges the broadcast schedule so that the data once transmitted be retransmitted in those vacant time slots.

REFERENCES:
patent: 4837786 (1989-06-01), Gurantz et al.
patent: 5345594 (1994-09-01), Tsuda
patent: 5430738 (1995-07-01), Tsuda
patent: 5619274 (1997-04-01), Roop et al.

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