The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 05, 1999

Filed:

Jan. 22, 1997
Applicant:
Inventors:

Kenji Kawaguchi, Saitama, JP;

Masayuki Toriyama, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
34081558 ; 340636 ; 324433 ; 320127 ; 320136 ; 320 48 ;
Abstract

A remaining battery energy indicating instrument with a reduced integration error even if a battery is repeatedly charged and discharged without being fully discharged. A remaining battery energy indicating instrument has a detecting member for detecting a predetermined discharged time and a predetermined fully charged time of a battery for storing electric energy, an integrating member for integrating electric energy which has been charged and discharged, while regarding as an integrated value a value corresponding to an amount of electric energy stored in the battery at the predetermined discharged time and the predetermined fully charged time when the predetermined discharged time and the predetermined fully charged time are reached. A display device is provided for displaying the absolute value of a remaining amount of electric energy stored in the battery based on an output signal from said integrating member.


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