Domestic satellite communication system

Details Domestic satellite communication system Domestic satellite communication system

1984-08-01

1986-10-07

Lev, Robert G.

179 2EB, H01M 1100

Patent

active

046161082

ABSTRACT:
A direct broadcast communication satellite system prevents over-charge for earth-subscriber to earth-subscriber toll calls via radio links to an earth station regardless of faults which may occur in satellite channels. A central earth station controls the frequency assignment of the radio link channels used for voice communication. Each of a plurality of subscriber earth stations has at least one voice communication terminal, with means for identifying a call destined for a subscriber at that earth station. The continuity of the channels involved in that call are monitored by periodically transmitting and receiving out-of-band signals on the assigned channel. It appears that there has been a loss of signal when the out-of-band signal does not appear, twice in succession. Then, the channel is released and the toll charges are terminated.

REFERENCES:
patent: 3942115 (1976-03-01), Wolejsza, Jr.
patent: 4273962 (1981-06-01), Wolfe
patent: 4424417 (1984-01-01), Chavey et al.
Telecom 1, A National Satellite for Domestic and Business Services, CH1435-7/79 0000-027 IEEE.

Affiliated with

Also associated with

Rating

Domestic satellite communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Domestic satellite communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Domestic satellite communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-644109