Touch switch controlled time information correction with safety

Details Touch switch controlled time information correction with safety Touch switch controlled time information correction with safety

1976-01-09

1978-05-23

Jackmon, Edith S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

58 23R, 58 50R, 58 91, 307116, G04C 300, G04B 1930, G04B 2700

Patent

active

040903532

ABSTRACT:
Transparent touch electrodes are formed on a front glass window of an electronic wristwatch at positions near, for example, the hour information digital display section and the minute information digital display section for correcting the time information in terms of hours and minutes, respectively. A safety lock system associated with the touch electrodes is provided to prevent the time information correction when it is not desired. The safety lock system counts an intermittent touch operation effected on the touch electrodes, thereby allowing the introduction of a time information correction command only when the touch operation is repeated over a predetermined number of times within a predetermined time period.

REFERENCES:
patent: 3322485 (1967-05-01), Williams
patent: 3754130 (1973-08-01), Stone
patent: 3768247 (1973-10-01), Fujita
patent: 3803834 (1974-04-01), Reese
patent: 3817021 (1974-06-01), Bergey
patent: 3823545 (1974-07-01), Vittoz et al.
patent: 3871168 (1975-03-01), Maire et al.
patent: 3871170 (1975-03-01), Bergey
patent: 3943696 (1976-03-01), Portmann et al.
patent: 3944843 (1976-03-01), Martias
patent: 3953963 (1976-05-01), Nishimura et al.
R. A. Johnson, IBM Technical Disclosure Bulletin Push Button Switch with no moving Parts, Apr., 1971, vol. 13, No. 11 p. 3551.

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