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. 13, 2000
Filed:
Mar. 26, 1998
Applicant:
Inventor:
Kaoru Kawata, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
713501 ; 713322 ;
Abstract
An information processing apparatus includes a CPU, a memory, and a reference signal generator and operates based on a system clock signal generated by the reference signal generator. The apparatus includes a detection unit for detecting a CPU operational state and a clock control unit for controlling frequency of the system clock signal. The detection unit detects a CPU busy ratio as a CPU operational state indicating the load on the CPU. The clock control unit controls the frequency of the system clock so that the detected CPU busy ratio falls within a permissible range of CPA load.