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.:

US 9018920 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 28, 2015

Filed:

Oct. 03, 2011
Applicant:

Takuma Yasukawa, Yokohama, JP;

Inventor:

Takuma Yasukawa, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0052 (2013.01); H02J 7/0029 (2013.01); H02J 7/0068 (2013.01);
Abstract

An information processing apparatus capable of suppressing a secondary battery from being charged with an amount of charge current that can apply excessive load on the secondary battery, without a backup power source function of the secondary battery being impaired. When determining that a predetermined type of data is stored in a DRAM to be backed up by the secondary battery, the information processing apparatus selects a first constant current circuit and quickly charges the secondary battery with a large charge current output from the first constant current circuit. When determining that the predetermined type of data is not stored in the DRAM, the information processing apparatus selects a second constant current circuit and normally charges the secondary battery with a small charge current output from the second constant current circuit.


Find Patent Forward Citations

Yasukawa, Takuma. (2015). Information processing apparatus, and control method and storage medium therefor (U.S. Patent No. 9018920). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9018920

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