Patent · US Expired

Electronic timepiece

US4081951A · kind A · utility

2Cited by
6References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 20, 1976
Grant dateApr 4, 1978
Priority date
Expiry dateDec 20, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04D7/003
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An electronic timepiece, wherein an oscillator drives a frequency divider and the output of the frequency divider controls via a driver circuit a display device. A short-circuit between an output of the driver circuit and a pole of the power supply causes a selector inserted between two of the stages of the frequency divider to feed to the stage following the selector, not as normally, the frequency delivered by the preceeding stage but a higher frequency. This serves for speeding up circuit testing.

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