Battery saving in portable radio apparatus

Details Battery saving in portable radio apparatus Battery saving in portable radio apparatus

1998-01-28

2000-10-31

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455 90, 455550, 455574, H04B 138

Patent

active

061415685

ABSTRACT:
In a portable radio apparatus, a displaying unit displays predetermined information in response to an ON signal and stops the display of the information in response to an OFF signal. An operation unit with buttons including specified buttons generates a start signal in response to operation of any of the specified buttons by a user. A detecting section generates a display request in response to the start signal. A control section issues the ON signal to the displaying unit in response to the display request from the detecting section and the OFF signal to the displaying unit such that the predetermined information is displayed on the displaying unit for a time period equal to or longer than a predetermined time period.

REFERENCES:
patent: 3877001 (1975-04-01), Bogut et al.
patent: 4536761 (1985-08-01), Tsunoda et al.
patent: 5881377 (1999-03-01), Giel et al.
patent: 5894580 (1999-04-01), Yoshida

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