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:
May. 22, 2001
Filed:
Dec. 23, 1999
William O. Camp, Jr., Chapel Hill, NC (US);
Chris Turner, Cary, NC (US);
I. Nelson Wakefield, Cary, NC (US);
Ericsson Inc., Research Triangle Park, NC (US);
Abstract
A method and apparatus for determining the capacity in a battery-powered communication. The method includes the steps of measuring a temperature of the battery, measuring a charging voltage and current, and determining a value corresponding to the number of charge cycles associated with the battery. Using these parameters, a capacity value corresponding to at least one of the parameters is computed based on stored database information. The apparatus includes a microprocessor linked to the battery. The microprocessor estimates the capacity present in the battery and calculates the remaining amount of battery capacity. After determining the present mode of battery power discharge, the microprocessor calculates the remaining available power time for the battery corresponding to previously read operational parameters.