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.
Patent No.:
Date of Patent:
Apr. 11, 1995
Filed:
Jul. 01, 1994
Takayuki Mino, Hyogo, JP;
Eiji Satsuma, Hyogo, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A residual capacity displaying device which discriminates whether or not a battery is deteriorated, and display the result of the discrimination. The residual capacity displaying device for a battery pack includes a current detecting unit for detecting current flowing to and from a battery pack. A battery identifying unit identifies the kind of the battery pack, and an arithmetic unit calculates the capacity of the battery pack according to the output of the current detecting unit and the time thereof. The dischargeable capacity of the battery pack is stored according to the output of the battery identifying unit. Also, the capacity of the battery pack which is discharged is compared until the voltage of the battery pack reaches a predetermined voltage value with the dischargeable capacity. When the result of comparison reaches a predetermined value, LEDs display the fact that the battery pack has been deteriorated.