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:
Apr. 09, 2019
Filed:
Jan. 24, 2017
Applicant:
Renesas Electronics Corporation, Tokyo, JP;
Inventor:
Shinichi Suzuki, Tokyo, JP;
Assignee:
Renesas Electronics Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
G06F 11/079 (2013.01); G06F 11/0721 (2013.01); G06F 11/0757 (2013.01);
Abstract
A semiconductor device includes a first timer that includes a first counter, a second timer that includes a second counter and a controller that includes a CPU in provision of a technology for efficiently diagnosing a fault of a timer that is built in the semiconductor device such as a microcontroller and so forth. The first timer performs time synchronization with the time of external equipment arranged outside the semiconductor device. The controller compares a count value of the first counter with a count value of the second counter and detects a malfunction of the second timer on the basis of a result of comparison.