Cordless telephone system with quick charge mode for recharging

Details Cordless telephone system with quick charge mode for recharging Cordless telephone system with quick charge mode for recharging

1990-11-09

1992-08-25

Dwyer, James L.

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, 455127, 455343, H04M 1100

Patent

active

051425637

ABSTRACT:
A cordless telephone includes a portable telephone and a base station. The portable telephone includes a voltage drop detecting circuit for detecting that a battery for supplying power to the circuit within the portable telephone is dropped in voltage to a predetermined value or less, and a control unit for controlling a transmission unit so that it transmits a voltage drop signal in accordance with an output from the voltage drop detecting circuit. When the voltage drop detecting circut detects the voltage-dropped state of the battery, a signal indicative of such state is sent to the base station.

REFERENCES:
patent: 4992720 (1991-02-01), Hata

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