Communications: electrical – Continuously variable indicating – With meter reading
Patent
1995-06-06
1996-02-20
Bowler, Alyssa H.
Communications: electrical
Continuously variable indicating
With meter reading
455 334, 455 381, 34082547, G08B 522, H04Q 706, H04Q 302
Patent
active
054932866
ABSTRACT:
Communications may be established based on geographic location when a communication resource controller (101) transmits a communication message (119), which includes a message ID (120) and a communication payload (121), to a plurality of communication units (102, 103). Each of communication units (102, 103) upon receiving the communication message (119), compares its identification code (122) with the message ID (120). If a match occurs, the communication unit (102, 103) then determines its geographic location. Having obtained the geographic location, the unit then does a table look-up to determine, based on the message ID code, a geographic communication area (126). Having obtained this information, the unit then determines whether its present location is within the geographic communication area and if so, adjust its receiver to receive the communication payload (121).
REFERENCES:
patent: 4935732 (1990-06-01), Andros et al.
patent: 5089813 (1992-02-01), DeLuca
patent: 5129095 (1992-07-01), Davis et al.
patent: 5230081 (1993-07-01), Yamada et al.
patent: 5287541 (1994-02-01), Davis et al.
ETSI, ETS 300 131 (prl), Jun. 1993, Second Edition, pp. 1-265.
Grube Gary W.
Naddell Marc C.
Shaughnessy Mark L.
Bowler Alyssa H.
Egan Wayne J.
Motorola Inc.
Rinehart Mark H.
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