Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Patent
1996-06-24
1998-09-29
Jung, Min
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
370528, H04J 312
Patent
active
058155066
ABSTRACT:
In a mobile satellite communication system including a land-earth station which communicates with a mobile earth station via a satellite, a method is employed for providing an overlay short messaging service. According to the method, a short messaging service is selected. In addition, a short message is transmitted from one of the land earth station and the mobile earth station via the satellite to the other. The short message is transmitted in one of a plurality of out-of-band signalling channels. The transmission occurs at a time when no signalling information is being transmitted.
REFERENCES:
patent: 4018993 (1977-04-01), Edstrom
patent: 4434486 (1984-02-01), Barner, Jr. et al.
patent: 5235598 (1993-08-01), Sasuta
patent: 5239678 (1993-08-01), Grube et al.
Comsat Corporation
Jung Min
LandOfFree
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