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:
Aug. 15, 2000
Filed:
Jun. 29, 1999
Masayuki Komatsu, Tokyo, JP;
Satoshi Kizawa, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The battery charging system allows a power consumption of an information processing apparatus to be maximally reduced when the system is off. When a charge request signal is output from a microprocessor of one battery, a connection control circuit puts one switch circuit into a open state and the other switch circuit into a closed state. As a result, a Smart Selector operates to start charging the battery whose connection has been detected. When the battery is fully charged and a full charge signal which is an inverted version of a charge request signal is output from the microprocessor, the connection control circuit operate to open the closed switch circuit and to close the opened switch circuit. The Smart Selector is made to recognize that the battery is no longer connected and detects only the other battery, thereby beginning charging to the other battery.