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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 8391113 B1

PDFFull Text
Expired
Date of Patent:
Mar. 05, 2013

Filed:

Feb. 13, 2009

Optical disc for tuple-speed recording and optical disc device for tuple-speed recording

Applicants:

Morio Nakatani, Ichinomiya, JP;

Masato Fuma, Ichinomiya, JP;

Kazuo Watabe, Minato-ku, JP;

Yutaka Kashihara, Minato-ku, JP;

Akihito Ogawa, Minato-ku, JP;

Yutaka Yamanaka, Minato-ku, JP;

Tatsunori Ide, Minato-ku, JP;

Shuichi Ohkubo, Minato-ku, JP;

Inventors:

Morio Nakatani, Ichinomiya, JP;

Masato Fuma, Ichinomiya, JP;

Kazuo Watabe, Minato-ku, JP;

Yutaka Kashihara, Minato-ku, JP;

Akihito Ogawa, Minato-ku, JP;

Yutaka Yamanaka, Minato-ku, JP;

Tatsunori Ide, Minato-ku, JP;

Shuichi Ohkubo, Minato-ku, JP;

Assignees:

Sanyo Electric Co., Ltd., Osaka, JP;

Toshiba Corporation, Tokyo, JP;

NEC Corporation, Tokyo, JP;

Attorney:

Ditthavong Mori & Steiner, P.C.

Primary Examiner:

Hoa T Nguyen

Assistant Examiner:

Mark Fischer

Int. Cl.
CPC ...
G11B 19/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical disc has a read-only system lead-in area and a recordable data area. Disc boundary information representing a boundary in a radial direction of an area on which capability of recording at a predetermined recording speed is guaranteed is recorded on the system lead-in area while being related to each tuple speed. An optical disc device, upon user's instruction of tuple-speed recording, compares the boundary information related to the instructed tuple speed with a present recording position, performs recording at the instructed tuple speed if the present recording position is on the outside of the boundary, and performs recording at a tuple speed lower than the instructed tuple speed if the present recording position is on the inside of the boundary.

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Nakatani, Morio. (2013). Optical disc for tuple-speed recording and optical disc device for tuple-speed recording (U.S. Patent No. 8391113). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8391113

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