Radio paging receiver with display
First Claim
1. A radio paging receiver with a display, comprising:
- low voltage detecting means for detecting a voltage drop of a power source;
alarm means for alarming when the voltage drop of the power source is detected;
time counting means for counting time of a clock;
time counting control means for making the time counting means start the time counting when the voltage drop of the power source is detected and for detecting a predetermined time lapse from the start of the time counting; and
power source control means for cutting the power source when the predetermined time lapse is detected in the case that the power source is not turned off and is not removed.
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Accused Products
Abstract
A radio paging receiver capable of giving an intense impact to a user so as to stimulate the user to exchange a cell and to prevent a negligence of the cell exchange and preventing an inoperative receiving due to a source voltage drop and a cleared state of a backup device for received information. A low voltage detector monitors a source voltage Va of the cell, and, when the source voltage Va falls below a reference voltage, the low voltage detector outputs a low voltage detection signal to a logic. The logic starts a countdown of a predetermined time from the time when the low voltage detection signal is detected. The logic then controls an informing part to inform of an alarm and a display means to display the countdown of the remaining time thereon up to a power off. Further, the logic compulsorily cuts the power when the predetermined time has passed.
15 Citations
12 Claims
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1. A radio paging receiver with a display, comprising:
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low voltage detecting means for detecting a voltage drop of a power source; alarm means for alarming when the voltage drop of the power source is detected; time counting means for counting time of a clock; time counting control means for making the time counting means start the time counting when the voltage drop of the power source is detected and for detecting a predetermined time lapse from the start of the time counting; and power source control means for cutting the power source when the predetermined time lapse is detected in the case that the power source is not turned off and is not removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification