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.

Date of Patent:
Sep. 29, 2015

Filed:

Jan. 28, 2014
Applicant:

Renesas Mobile Corporation, Tokyo, JP;

Inventors:

Tadashi Kameyama, Tokyo, JP;

Takanobu Naruse, Tokyo, JP;

Yohei Akita, Tokyo, JP;

Hirotaka Hara, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01); G05F 3/02 (2006.01); G06F 1/28 (2006.01); G01R 19/165 (2006.01); G01R 19/32 (2006.01);
U.S. Cl.
CPC ...
G06F 1/28 (2013.01); G01R 19/16552 (2013.01); G01R 19/32 (2013.01);
Abstract

A monitor circuit includes a reference voltage generating unit that generates first and second reference voltages, a first amplifier unit that amplifies a differential voltage between the first reference voltage and the second reference voltage, a second amplifier unit that amplifies a differential voltage between an internal power supply voltage being supplied to a functional block provided in the semiconductor integrated circuit and the first reference voltage, and a comparator unit that compares an amplification result of the first amplifier unit with an amplification result of the second amplifier unit and outputs a comparison result as a measurement result.


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