Domestic satellite communication system

Details Domestic satellite communication system Domestic satellite communication system

H - Electricity

04

J

363/8

H04J 1/02 (2006.01) H04Q 3/00 (2006.01)

Patent

CA 1224284

Abstract There is disclosed a domestic satellite communication system, including a demand assignment central earth station which controls the frequency assign- ment of voice communication satellite channels in correspondence to the occur- rence of calls, which discriminates a subscriber earth station-to-subscriber earth station call and which is connected to a central switching system for carrying out a voice switching operation, and a plurality of subscriber earth stations each of which accommodates at least one voice communication terminal. Each of the subscriber earth stations comprises: indication means for indicating that a call discriminated at the central earth station is the one for a sub- scriber earth station-to-subscriber earth station; means for monitoring a communication continuity state at the voice communication terminals; and means for periodically transmitting an out-of-band signal to a voice communication satellite channel which is assigned by the central earth station while the monitoring means detects the communication continuity state and the indication means indicates the subscriber earth station-to-subscriber earth station call. The central earth station comprises: means for demodulating the out-of-band signal transmitted from the subscriber earth station; means for receiving the out-of-band signal which has been demodulated by the demodulating means; means for monitoring the communication continuity state between the subscriber earth stations by periodically reading out the output of the receiving means; and means for making a tuned frequency of the demodulating means coincide with a frequency assigned to the voice communication between the subscriber earth stations. The subscriber earth station-to-subscriber earth station call is thus connected through one satellite link.

460314

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: LFCA-PAI-O-1320562