Method and apparatus for equalizing battery life in a selective

Details Method and apparatus for equalizing battery life in a selective Method and apparatus for equalizing battery life in a selective

Filed on

1993-10-01

Date issued

1995-08-08

Examiner

Horabik, Michael

Patent Class

Communications: electrical

SubClass

Continuously variable indicating

SubSubClass

With meter reading

Other Related Categories

34082544, 34082547, 455 383, 455343, G08B 522

Type

Patent

Status

active

Patent number

054402999

Description

ABSTRACT:
A method and apparatus equalizes battery life among a plurality of battery-powered selective call receivers (110) in a communication system (100). The communication system (100) utilizes periodic transmissions of queuing groups (222, 224, 226, 228) of selective call addresses queued into the queuing groups (222, 224, 226, 228) for battery saving, and further queued into transmission positions (230) having a predetermined queuing order within the queuing groups (222, 224, 226, 228) for additional battery saving. The predetermined queuing order is periodically rotated (504, 512) such that each of the selective call addresses experiences a queuing delay between an initiation of a transmission of a queuing group and a transmission of the selective call address queued in the queuing group, whereby the queuing delay averaged over a plurality of queuing group transmissions approaches a single, constant value substantially applicable to each of the selective call addresses.

REFERENCES:
patent: 4232294 (1980-11-01), Burke et al.
patent: 4419765 (1983-12-01), Wycoff
patent: 4449248 (1984-05-01), Leslie et al.
patent: 4628311 (1986-12-01), Milling
patent: 4668949 (1987-05-01), Akahori et al.
patent: 4845491 (1989-07-01), Fascenda
patent: 4857915 (1989-08-01), Andros et al.
patent: 4996526 (1991-02-01), DeLuca

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