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.:
Date of Patent:
May. 05, 2009
Filed:
Jan. 18, 2005
Kazuo Kuroda, Saitama, JP;
Eiji Muramatsu, Saitama, JP;
Kunihiko Horikawa, Saitama, JP;
Atsushi Yamaguchi, Saitama, JP;
Masahiro Kato, Saitama, JP;
Toshio Suzuki, Saitama, JP;
Kazuo Kuroda, Saitama, JP;
Eiji Muramatsu, Saitama, JP;
Kunihiko Horikawa, Saitama, JP;
Atsushi Yamaguchi, Saitama, JP;
Masahiro Kato, Saitama, JP;
Toshio Suzuki, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A disc-shaped information recording medium has a first and a second recording layer. A buffer area is arranged adjacent to a recording area of each of the layers for preventing deviation of the recording position onto/from each of the layers. A first part of the information is written along a first track path on the first recording layer, a predetermined amount of first buffer data in a part of the buffer area of the first recording layer is written into the first recording layer, and inter-layer jump is performed from the first recording layer to the second recording layer. A predetermined amount of second buffer data in the buffer area of the second recording layer is written in the second recording layer and write element is controlled to write a second part of the information to be recorded, on the second recording layer by changing the recording direction.