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:
Feb. 26, 2008
Filed:
Nov. 29, 2004
Masahito Kubo, Kawasaki, JP;
Takashi Chiba, Kawasaki, JP;
Masakazu Takahashi, Kahoku, JP;
Shinichiro Nakamura, Kahoku, JP;
Kenji Takebe, Kahoku, JP;
Hirofumi Koseki, Kahoku, JP;
Masahito Kubo, Kawasaki, JP;
Takashi Chiba, Kawasaki, JP;
Masakazu Takahashi, Kahoku, JP;
Shinichiro Nakamura, Kahoku, JP;
Kenji Takebe, Kahoku, JP;
Hirofumi Koseki, Kahoku, JP;
Fujitsu Limited, Kawasaki, JP;
PFU Limited, Ishikawa, JP;
Abstract
An elapsed cycle number during the predetermined period of the inputted clock source is counted using the clock reference signal as a yardstick, a frequency of the clock source is computed based on an elapsed cycle number obtained by counting, control timing of various interfaces relating to the CPU is adjusted and an interruption generating interval in which interruption is generated regularly by the CPU so that adjustment of control timing of various interfaces and setting of a timer interruption interval during the OS operation in accordance with a frequency of the clock source without performing OS modification such as rebuilding and the like.