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:
Nov. 07, 2000
Filed:
Jul. 16, 1999
Applicant:
Inventors:
Iilonga Thandiwe, Atlanta, GA (US);
Ron Torrence, Suwanee, GA (US);
James L Estes, Jr, Lawrenceville, GA (US);
Assignee:
Motorola, Inc., Shaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ;
U.S. Cl.
CPC ...
320134 ; 320136 ;
Abstract
This invention is a system and method for causing a rechargeable battery pack to enter a low power mode. The system includes a resistive divider, a switch, a battery cell, and a safety integrated circuit. When an external voltage is applied to the resistive divider, the switch turns on. With the switch on, the safety integrated circuit senses only a fraction of the cell voltage and therefore puts the battery pack into a low power, or sleep mode. The battery is returned to normal mode by connecting a charger to the battery pack.