Patent · US Expired

Control device for setting a timepiece

US3943696A · kind A · utility

27Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 2, 1974
Grant dateMar 16, 1976
Priority date
Expiry dateJul 2, 1994

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04G5/045
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An electronic timepiece including a time-keeping circuit having serially connected counters generating day, hour, minute and second signals; a four digit display connected to the counters; a selecting circuit coupled to the counters and having one mode for the display of two units of real time, and a plurality of other modes for the selection and display of each single unit of time for correction; a first switch connected to the selecting circuit and actuable to sequentially advance the selecting circuit from one mode to another; and a second switch coupled to the selecting circuit and the counters for causing the display of a different two units of real time when the selecting circuit is in the first mode, and for correcting each individually selected unit of time when the selecting circuit is in one of its other modes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.