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:
Apr. 09, 2019

Filed:

Feb. 14, 2018
Applicant:

Memory-tech Holdings, Inc., Chikusei-shi, Ibaraki, JP;

Inventors:

Yoshihiro Takatani, Gotemba, JP;

Mitsuro Satoh, Gotemba, JP;

Masayoshi Tsuchiya, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24035 (2013.01); G11B 7/24038 (2013.01); G11B 20/12 (2006.01); G11B 27/32 (2006.01); G11B 7/007 (2006.01); G11B 7/24073 (2013.01); G11B 7/26 (2006.01); G11B 7/24 (2013.01);
U.S. Cl.
CPC ...
G11B 7/24035 (2013.01); G11B 7/00736 (2013.01); G11B 7/24038 (2013.01); G11B 7/24073 (2013.01); G11B 20/1217 (2013.01); G11B 27/329 (2013.01); G11B 7/0079 (2013.01); G11B 7/00745 (2013.01); G11B 7/24 (2013.01); G11B 7/26 (2013.01); G11B 2007/00709 (2013.01); G11B 2007/00754 (2013.01); G11B 2020/1227 (2013.01); G11B 2020/1238 (2013.01);
Abstract

A reading method for reading contents information with a laser from an optical disc including a plurality of recording layers includes positioning a focus position of the laser at a first recording layer and reading a first part of the contents information recorded in the first recording layer. If a first link information recorded in the first recording layer is detected, judging whether a first condition is fulfilled or not. If the first condition is fulfilled, positioning the focus position of the laser at a second recording layer and reading a first link destination information recorded in the second recording layer. If the first condition is not fulfilled, reading a second part of the contents information recorded in the first recording layer.


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