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:
Sep. 23, 2003
Filed:
Jun. 12, 1996
Ivan Nelson Wakefield, Cary, NC (US);
Ericsson Inc., Research Triangle Park, NC (US);
Abstract
An apparatus for identifying batteries of different types is disclosed where each battery includes a positive terminal, a negative terminal, and an identification terminal connected to a tap between two cells of the battery. The apparatus includes a positive contact positioned so as to engage the positive terminal of a battery, a negative contact positioned so as to engage the negative terminal of the battery, an identification contact positioned so as to receive a tap voltage from the identification terminal of the battery indicative of a particular battery type, and a microcomputer connected to the positive, negative, and identification contacts, wherein the microcomputer identifies the particular type of the battery on the basis of where the tap voltage lies with respect to a plurality of specified voltage ranges. The apparatus may also include a circuit connected to the microcomputer, the positive contact, the negative contact, and the identification contact for supplying a charging current to the battery in accordance with a specified charging algorithm applicable to the particular battery type.