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:
Jun. 11, 2002
Filed:
May. 14, 2001
Heather N Bean, Fort Collins, CO (US);
Scott A Woods, Bellvue, CO (US);
Christopher A. Whitman, Fort Collins, CO (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A method of identifying battery chemistry of a battery in an electronic device monitors voltage behavior of the battery in response to a stimulus. The method can be performed in the electronic device while the device is in normal operation without affecting battery life or the user's enjoyment. Further, the method can be performed many times within the device also without compromising battery life or user enjoyment. A system implements the method in the electronic device. The present invention provides for more accurate battery fuel gauging, such that a battery's end of life is more readily determinable, and allows for various battery chemistries to be drained to their optimal cutoff voltage, and allows for the safe in-device charging of rechargeable batteries that are the same size and shape as non-rechargeable batteries.