Electronic wristwatch control mechanism

Details Electronic wristwatch control mechanism Electronic wristwatch control mechanism

1978-07-19

1981-05-05

Weldon, Ulysses

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

368 80, 368184, 368185, 368187, G04B 1900

Patent

active

042662907

ABSTRACT:
A manually operated control mechanism for permitting a high frequency detection signal to be selectively produced is provided. A selection circuit is coupled to a divider circuit for receiving therefrom a low frequency timekeeping signal and a higher frequency detection signal. The selection circuit is normally disposed in a first mode and transmits the low frequency timekeeping signal applied thereto and is adapted to be disposed into a second mode to thereby transmit the higher frequency detection signal applied thereto. A manually operative member is adapted to be coordinately displaced between a first non-engaging position and a second position wherein the manually operative member engages said selection circuit to thereby dispose same in a second mode in order to effect the transmission thereby of the higher frequency detection signal.

REFERENCES:
patent: 3800233 (1979-03-01), Sauthier
patent: 3901022 (1975-08-01), Cleusix et al.
patent: 3945194 (1976-03-01), Gollinger
patent: 3975897 (1976-08-01), Naito
patent: 3998044 (1976-12-01), Yamauchi et al.
patent: 4044543 (1977-08-01), Ikehata et al.

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