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.:

US 7023769 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 04, 2006

Filed:

Mar. 03, 2004
Applicants:

Kenichi Hamada, Kato, JP;

Akira Nanba, Kato, JP;

Masakazu Taguchi, Kawasaki, JP;

Inventors:

Kenichi Hamada, Kato, JP;

Akira Nanba, Kato, JP;

Masakazu Taguchi, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

A data recording method for calculating a digital sum value (DSV) corresponding to a proportion of positive data and negative data included in predetermined data ranges, selecting a resync pattern to be inserted between the data ranges according to the DSV, and inserting the selected resync pattern between the data ranges, has a step of selecting a resync pattern that minimizes differences in DSV between the data ranges.


Find Patent Forward Citations

Hamada, Kenichi. (2006). Data recording method, data reproduction method, data recording device, data reproduction device and optical recording medium (U.S. Patent No. 7023769). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7023769

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