Patent
1974-01-18
1976-01-13
Hix, L. T.
58 855, G04C 300, G04B 2708
Patent
active
039317030
ABSTRACT:
A device for correcting running of an electronic watch comprises two contactors acting on respective bistable circuits in turn acting on a combinatory circuit controlling a counter which provides binary correction information to an inhibitor circuit. The latter is arranged to inhibit a number of pulses of a pulse generator having a predetermined nominal frequency above a given value, to set the frequency at said given value prior to division to provide accurate clock pulses fed to a device for indicating the time. Successive actuation of respective contactors corresponds to increasing or decreasing the number of inhibited pulses from an approximate number stored in a programmable memory.
REFERENCES:
patent: 3668859 (1972-06-01), Polin et al.
patent: 3733803 (1973-05-01), Hiraga et al.
patent: 3777471 (1973-12-01), Koehler et al.
patent: 3786625 (1974-01-01), Sauthier
patent: 3812669 (1974-05-01), Wiget
H. J. Benscher et al. "Electronic Switching Theory and Circuits," Van Nostrand Reinhold Co., New York, N.Y., 1971, pp. 63, 64.
Chetelat Fernand
Hersberger Pierre
Scherrer Igor
Adams Bruce L.
Burns Robert E.
Ebauches S.A.
Hix L. T,.
Lobato Emmanuel J.
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