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:
Sep. 21, 2010
Filed:
Feb. 17, 2005
Applicants:
Kiyoshi Yamamoto, Toyohashi, JP;
Akitaka Murata, Toyohashi, JP;
Inventors:
Kiyoshi Yamamoto, Toyohashi, JP;
Akitaka Murata, Toyohashi, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A booster circuit is incorporated in a one-chip microcomputer. In a test mode, a burn-in test is performed by switching power supply systems so that a power supply voltage of 5V is supplied to a 3.3V-type circuit section that normally operates on a power supply voltage of 3.3V in an ordinary state and a boosted voltage of a 5V booster circuit is supplied to a 5V-type circuit section that normally operates on a power supply voltage of 5V in the ordinary state.