Message unit for use with multi-beam satellite-based messaging s

Details Message unit for use with multi-beam satellite-based messaging s Message unit for use with multi-beam satellite-based messaging s

1994-10-03

1997-01-21

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082544, 455 121, 379 59, H01H 6700

Patent

active

055963153

ABSTRACT:
A satellite-based, world-wide cellular messaging system transmits paging messages to pagers via multiple beams. A message unit monitors multiple beams, recording the visit information for each beam, and ultimately determines the optimum beam to monitor for messages. The message unit, which conserves battery resources by entering into a sleep mode, synchronizes quickly to its message block when it awakes.

REFERENCES:
patent: 4178476 (1979-12-01), Frost
patent: 4713808 (1987-12-01), Gaskill et al.
patent: 4845491 (1989-07-01), Fascenda et al.
patent: 4860003 (1989-08-01), De Luca et al.
patent: 5008952 (1991-04-01), Davis
patent: 5161248 (1992-11-01), Bertiger et al.
patent: 5257019 (1993-10-01), Schwendeman et al.

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