Radio wave receiving signaling device

Details Radio wave receiving signaling device Radio wave receiving signaling device

1998-02-12

2000-02-01

Hofsass, Jeffrery A.

Communications: electrical

Condition responsive indicating system

Specific condition

3403846, 340539, G08B 1314

Patent

active

060208198

ABSTRACT:
A radio wave receiving signaling device includes an antenna (22) having a coil (22a). An electrically capacitive buzzer (21) is activated by alarm output device (AO) to generate sound when the receiving antenna (22) receives a sound generation instructing signal. The buzzer (21) and all or part of the coil (22a) of the receiving antenna (22) are connected to form a booster circuit to raise a voltage to be applied to the buzzer (21) by a resonance function.

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Patent Abstracts of Japan, vol. 105, No. 246 (E-1081), Jun. 24, 1991; JP-A-03 077219 (Omron Corp.), Apr. 2, 1991.

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