Shock-activated switch device

Horology: time measuring systems or devices – Chronological – With manually actuated display

Reexamination Certificate

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Details

C368S224000, C368S255000, C310S318000, C310S319000

Reexamination Certificate

active

07817500

ABSTRACT:
A shock-activated switch device comprises a piezoelectric buzzer having a body for receiving a mechanical shock and a terminal for outputting an electrical output signal when the body receives a mechanical shock, and an output circuit connected to the terminal for converting the output signal into a logic signal for controlling an electronic circuit to execute a specific programmable function, such as alarm snooze.

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patent: 4663624 (1987-05-01), Bui et al.
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patent: 6577559 (2003-06-01), Fleury et al.
patent: 6747916 (2004-06-01), Fleury et al.
patent: 6813223 (2004-11-01), Born et al.
patent: 2004/0164647 (2004-08-01), Micko
patent: 2 262 988 (1993-07-01), None

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