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. 26, 2012
Filed:
Jul. 02, 2009
Osamu Nagashima, Tokyo, JP;
Kei Tashiro, Kanagawa, JP;
Yoichi Miyajima, Tokyo, JP;
Toshio Takeshita, Kanagawa, JP;
Osamu Nagashima, Tokyo, JP;
Kei Tashiro, Kanagawa, JP;
Yoichi Miyajima, Tokyo, JP;
Toshio Takeshita, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a charging apparatus capable of efficiently charging battery in view of power consumption and a charging method. The charging apparatus has a charging unit which charges a battery, a remaining capacity detecting unit which detects remaining capacity of the battery, a necessary charging capacity obtaining unit which obtains charging capacity necessary for use after completion of the charging of the battery, an additional charging capacity calculating unit which calculates additional charging capacity for additionally charging the battery based on the remaining capacity and the necessary charging capacity of the battery, a charging current determining unit which determines a charging current at the time when the charging unit charges for the additional charging capacity based on power consumption generated at the time of charging for the additional charging capacity, and a control unit which controls the charging unit based on the determined charging current.