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:
Aug. 01, 1995
Filed:
May. 19, 1993
Applicant:
Inventor:
Lee J Hyuck, Seoul, KR;
Assignee:
Goldstar Telecommunication Co., Ltd., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
320 15 ; 320-2 ;
Abstract
A method for recognizing different types of batteries in a product capable of using two or more types of batteries so as to employ the battery life efficiently. The method includes detecting the battery voltage upon connection to a load and detecting variations of the battery voltage with load variations. The discharge voltages of an alkaline battery and a nickel-cadmimum are distinguished so as to avoid premature replacement of an alkaline battery.