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.

Date of Patent:
Jul. 28, 2015

Filed:

Oct. 18, 2012
Applicant:

Sony Mobile Communications Japan, Inc., Tokyo, JP;

Inventors:

Daisuke Sakai, Tokyo, JP;

Kuniharu Suzuki, Tokyo, JP;

Katsuya Suzuki, Gunma, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/02 (2006.01); H02J 5/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/025 (2013.01); H02J 7/0027 (2013.01); H02J 7/0044 (2013.01); H02J 5/005 (2013.01);
Abstract

When the charge level of a fully-charged rechargeable battery decreases due to quiescent power drain, in order to recharge it is necessary for the user to pick up and again place the mobile device in which the rechargeable battery is inserted onto a charging apparatus and issue instructions to start recharging. To address this issue, a charging controller applies control to disconnect a capacitor from a receiver coil with a switch in the case where the charge level of a rechargeable battery is equal to or greater than a given threshold value, and additionally applies control to connect the capacitor to the receiver coil with the switch in the case where the charge level of the rechargeable battery is less than the threshold value.


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