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:
Jun. 05, 2012

Filed:

Apr. 04, 2008
Applicant:

Yukio Tsuda, Aiko-gun, JP;

Inventor:

Yukio Tsuda, Aiko-gun, JP;

Assignee:

Anritsu Corporation, Atsugi-Shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 23/16 (2006.01); G01R 23/00 (2006.01); H04B 15/00 (2006.01); G10L 19/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

Frequencies of plural peak signals which appear in a band ½ of a sampling frequency are detected from a spectrum obtained from a measuring target signal sampled with the sampling frequency in order to detect the repetition frequency of the measuring target signal having plural harmonic components with a similar power. Each of the plural peak signals is successively assumed to be a fundamental wave beat component originating from the fundamental wave of the measuring target signal and theoretical frequencies of harmonic beat components originating from harmonic components of the measuring target signal are successively calculated. The theoretical frequencies are compared with the frequencies of the plural peak signals to determine one of the plural peak signals as a fundamental wave beat component originating from the fundamental wave of the measuring target signal.


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