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. 15, 2004
Filed:
Feb. 04, 2000
Kohji Kawahara, Yamato, JP;
Tsuyoshi Miyamura, Machida, JP;
Tomoki Maruichi, Yamato, JP;
Takashi Sugawara, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method to reduce the power dissipation of a system by omitting an unnecessary CPU throttling operation in a power management apparatus that performs the CPU throttling operation. A power management apparatus is constituted by an event detecting section to detect an event in a system, an activity detecting section to decide whether the system is in a busy state or in an idle state by checking whether or not there is activity in the system, and a clock control section to execute CPU-clock control. The control section does not perform an unnecessary CPU throttling operation, by stopping the CPU throttling operation when the system is in the idle state and performing the CPU throttling operation only when the system is in the busy state. With this, the power dissipation of the system can be considerably reduced.