Receiver switchable between network supply mode and power-conser

Details Receiver switchable between network supply mode and power-conser Receiver switchable between network supply mode and power-conser

1990-11-30

1991-10-22

Olms, Douglas W.

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

455 67, 455228, H04B 1700, H04B 116

Patent

active

050603000

ABSTRACT:
A radio warning receiver has a battery or accumulator (7) and means (8) for switching over to battery operation mode when network power (6) fails. Battery power is conserved by turning off (9) power to the end stage (3), placing the warning receiver in a so-called Stand-By Mode, until a control signal is detected (5) which indicates that a warning is to be broadcast. Then, power to the end stage is restored (11) for the duration of the warning broadcast.

REFERENCES:
patent: 4499603 (1985-02-01), Eilers
Blaupunkt Public Information & Notification System; Mar. 1987.

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