Patent · US Expired

Battery level indicator supplying data from a memory to a display in a power-off state

US4800336A · kind A · utility

27Cited by
7References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 18, 1987
Grant dateJan 24, 1989
Priority date
Expiry dateMay 18, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S320/19
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A battery level indicator for use with an electronic apparatus so arranged as to display, on an indicator, a real time voltage level detected by a voltage detector, when a battery is applying power to the electronic apparatus, and to display on the indicator the latest voltage read from a memory when the battery is not applying power to the electronic apparatus, whereby the indicator indicates how much power the battery will be able to supply to such electronic apparatus.

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