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. 16, 2005
Filed:
Mar. 26, 2003
Applicant:
Junji Miyake, Hitachinaka, JP;
Inventor:
Junji Miyake, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04F010/00 ;
U.S. Cl.
CPC ...
Abstract
An execution time measurement device in a control unit comprising a free running counter to be updated according to time, means to push stack for working out stack data from the time-of-day value of the free running counter at the time of activation and for pushing it, means to memorize data structure of stack for memorizing the pushed stack data structure, and means to pull stack for calculating the execution time of control operation based on the time-of-day value of the free running counter upon termination of the control operation and the stack data pulled from the means to memorize data structure of stack.