Document Type and Number:
Japanese Patent JPS4858877
Kind Code:
A
Abstract:
The indicator gear train of a timepiece is driven in dependence upon periodic signals derived from a time base. The gear train includes a rotatable element which can periodically separate the electrodes of a variable capacitor comprising two electrodes biased one against the other with the interposition between them of a dielectric layer. An error detector circuit can be used to detect errors in the gear train position by comparing signals derived from the time base with signals dependent upon the value of the variable capacitor.
Application Number:
JP10632572A
Publication Date:
August 17, 1973
Filing Date:
October 25, 1972
Export Citation:
International Classes:
G04C3/14; (IPC1-7): G04C3/00