Patent · US Expired

Electronic apparatus and method of controlling the electronic apparatus

US7265520B2 · kind B2 · utility

19Cited by
10References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 10, 2001
Grant dateSep 4, 2007
Priority date
Expiry dateDec 21, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/3648
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An electronic watch in which the display on a liquid crystal display 236 is prohibited when the detected output voltage of a secondary battery 220 drops to a first predefined voltage. An initialization process is performed when the detected voltage of the secondary battery 220 drops to a second voltage lower than the first voltage, and the display on the liquid crystal display unit 236 is restarted when the detected voltage of the secondary battery 220 rises to a third voltage not lower than the first voltage after having reached the second voltage.

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