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:
Mar. 02, 2010
Filed:
Sep. 22, 2006
Applicants:
Russell Croman, Austin, TX (US);
G. Diwakar Vishakhadatta, Austin, TX (US);
Lionel Cimaz, Pleumeleuc, FR;
Inventors:
Russell Croman, Austin, TX (US);
G. Diwakar Vishakhadatta, Austin, TX (US);
Lionel Cimaz, Pleumeleuc, FR;
Assignee:
ST-Ericsson SA, Geneva, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/04 (2006.01); G01N 27/416 (2006.01); H02H 3/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment, the present invention includes a method for performing a test on a rechargeable battery to indirectly determine a state of protection circuitry associated with the battery. The method may discharge the battery by controlling a pull-down current into a system, determine if the battery voltage falls below a first threshold level within a predetermined amount of time, and if so provide a pre-charge current to the battery.