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:
Jan. 01, 2008
Filed:
Dec. 08, 2003
Mitsuhiro Yamazaki, Yokohama, JP;
Shinji Matsushima, Yokohama, JP;
Hideshi Tsukamoto, Machida, JP;
Takayuki Katoh, Yokohama, JP;
Mitsuo Tabo, Fujisawa, JP;
Mitsuhiro Yamazaki, Yokohama, JP;
Shinji Matsushima, Yokohama, JP;
Hideshi Tsukamoto, Machida, JP;
Takayuki Katoh, Yokohama, JP;
Mitsuo Tabo, Fujisawa, JP;
Lenovo Singapore Pte, Ltd., Singapore, SG;
Abstract
A power supply circuit for a computer system includes an AC adapter designed to be connectable to the computer system and supplying power to the system, a main battery and a second battery that are designed to be connectable to the computer system and get charged with power from the AC adapter and then discharge it to supply power to the system, a charger that is a charging circuit for the main battery and/or the second battery while the main battery and/or the second battery is connected to the AC adapter with the computer system powered off, and a gate array circuit for turning off the power supply to an embedded controller.