Battery time monitor for cellular telephone

Details Battery time monitor for cellular telephone Battery time monitor for cellular telephone

1992-04-30

1993-09-28

Peckman, Kristine L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 13, 320 43, H01M 1048

Patent

active

052489299

ABSTRACT:
A battery monitoring system for a cellular telephone which provides the user with a real time display of the amount of time remaining for use of the cellular telephone in both the standby and conversation modes. The amount of time may be calculated directly from the rate of discharge of the battery or from stored conversion factors corresponding to various states of charge of the battery.

REFERENCES:
patent: 3778702 (1973-12-01), Finger
patent: 4380726 (1983-04-01), Sado et al.
patent: 4525055 (1985-06-01), Yokoo
patent: 4638237 (1987-01-01), Fernandez
patent: 5032825 (1991-07-01), Kuznicki
patent: 5043651 (1991-08-01), Tamura
patent: 5065084 (1991-11-01), Oogita
patent: 5115182 (1962-05-01), Ehmke et al.
patent: 5130659 (1992-07-01), Sloan
Info World, vol. 14, pp. 10-11, Apr. 6, 1992.

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