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:
Apr. 21, 2009
Filed:
Mar. 15, 2005
Yukio Tsuchiya, Kanagawa, JP;
Hideyuki Sato, Chiba, JP;
Masaki Sakurai, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery apparatus is provided, in which even if a battery thereof is used under the low temperature environment or the battery has been charged/discharged many times, by changing and setting the end voltage that ends the discharge from the battery cell on the basis of the property of the battery, the dischargeable period can be extended. A battery apparatus for controlling an operation by detecting a charge/discharge state of a battery cell, which is chargeable/dischargeable, to supply a power source voltage to an electronic apparatus, includes: end voltage setting means for setting an end voltage that ends the discharge from the battery cell on the basis of a discharge property of the battery cell; and an end a voltage controller for varying and controlling a setting of the end voltage in accordance with a condition of the battery cell being used.