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:
Oct. 21, 2014
Filed:
Mar. 30, 2011
Atsushi Ikeda, Tochigi, JP;
Nobuchika Ochi, Tochigi, JP;
Atsushi Ikeda, Tochigi, JP;
Nobuchika Ochi, Tochigi, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A microcomputer is equipped with a CPU and an AD converter. The AD converter is supplied with the same power source voltage as the CPU, and converts a reference voltage into digital data using the received power source voltage and outputs the digital data as a conversion value. The CPU detects a state of the power source voltage by calculating a voltage variation of a power source voltage for ordinary operation on the basis of a first conversion value obtained by AD-converting the reference voltage by the AD converter in a state that a standard power source voltage including no voltage variation is supplied to the AD converter and a second conversion value obtained by AD-converting the reference voltage by the AD converter in a state that the power source voltage for ordinary operation is supplied to the AD converter.