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. 01, 2010
Filed:
Dec. 04, 2007
Junji Miyake, Hitachinaka, JP;
Junji Miyake, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention offers an advanced control software verification technology, particularly, an assertion-based verification technology, by providing a control microcomputer verification device and vehicle-mounted control device that exhibit improved verification efficiency. Assertion-based verification is performed with a verification device that has a hardware configuration in which the verification device is independent of a CPU core of a microcomputer but operates in parallel with the CPU core of the microcomputer, which sequentially executes control software. The hardware to be employed to achieve the above purpose is a finite state machine based on microprogrammed control. An interrupt factor is branched immediately before an interrupt controller for the microcomputer and used as a transition input. When an abnormal transition is detected, a warning is output to the microcomputer as an interrupt or output to the outside in the form of a signal.