Radio paging receiver with display

Details Radio paging receiver with display Radio paging receiver with display

Filed on

1997-06-27

Date issued

1999-07-27

Examiner

Cuchlinski, Jr., William A.

Patent Class

Communications: electrical

SubClass

Continuously variable indicating

SubSubClass

With meter reading

Other Related Categories

340636, 455 382, 455 383, 455343, 324426, 320 49, G08B 2100

Type

Patent

Status

active

Patent number

059297751

Description

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.

REFERENCES:
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patent: 5032825 (1991-07-01), Kuznicki
patent: 5095308 (1992-03-01), Hewitt
patent: 5140310 (1992-08-01), DeLuca et al.
patent: 5218705 (1993-06-01), DeLuca et al.
patent: 5304986 (1994-04-01), Motegi
patent: 5365221 (1994-11-01), Fennell et al.
patent: 5424721 (1995-06-01), Asai
patent: 5442345 (1995-08-01), Kwon
patent: 5684404 (1997-11-01), Millar
Patent Abstracts of Japan, vol. 16, No. 45 (E-1162), Publication No. JP 03 248636 A (Nov. 6, 1991).
Rudy et al., "Pager-Off Alert and Recovery Protection," Motorola Technical Developments, vol. 15, p. 57 (May 1992).

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