Alarm circuit for residual capacity of battery in portable radio

Details Alarm circuit for residual capacity of battery in portable radio Alarm circuit for residual capacity of battery in portable radio

1998-06-17

1999-08-10

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340539, 324433, 320 48, G08B 2100

Patent

active

059365340

ABSTRACT:
Voltage setting information designating a battery voltage for initiating alarming and alarm setting information designating a method for outputting the alarm are input from a keying section and variably stored in a memory. A computing section compares battery voltage information in a battery detected by a battery voltage detecting section with the voltage setting information and, when the voltage in the battery voltage information is lower than the voltage in the voltage setting information, outputs an alarm sound signal or a call incoming lamp signal based on the alarm setting information to give the alarm to a user by sounding the alarm using a sound source or by emitting light using a call incoming lamp. This construction enables the residual capacity of the battery, at which alarming is initiated, and a method for giving the alarm to be varied as desired by a user.

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