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:
Dec. 22, 2015

Filed:

Mar. 26, 2015
Applicant:

Nidec Sankyo Corporation, Suwa-gun, Nagano, JP;

Inventors:

Shigeo Nakajima, Nagano, JP;

Katsuhisa Higashi, Nagano, JP;

Yoichi Isono, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/02 (2006.01); G11B 20/10 (2006.01); G11B 20/12 (2006.01); G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
G11B 20/10287 (2013.01); G11B 5/09 (2013.01); G11B 20/1252 (2013.01);
Abstract

A demodulation method of magnetic data may include a first data creating step which creates a preliminary data string for creating the demodulation data on a basis of an interval that is a time interval between peaks of a read signal of an analog-shaped magnetic data, and a second data creating step which creates a demodulation data creating data for creating the demodulation data on a basis of the preliminary data string created in the first data creating step. When a peak of the read signal is not detected for a predetermined time, a pseudo-peak is generated and a pseudo-interval is stored in a data storage section, and steps similar to the first data creating step and the second data creating step are executed, and the pseudo-peak is generated until the demodulation data creating data corresponding to a final interval is created.


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