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:
Jun. 07, 2011
Filed:
Jun. 04, 2004
Tomo Kishigami, Tokyo, JP;
Nobuo Takeshita, Tokyo, JP;
Osamu Tsukahara, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A write strategy for use in recording is determined from recommended write strategy parameters recorded on an optical disk () and the characteristics of the optical recording device used in recording; a recommended asymmetry value is determined from the difference between the numerical aperture NAof the objective lens, which is a recording condition of the recommended asymmetry value recorded on the optical disk () and the numerical aperture NAof the objective lens () of the optical recording device used in recording, and recording is carried out on the optical disk () according to the write strategy and asymmetry value thus determined. Optimal recording can be carried out even on an optical disk for which the optimal write strategy information has not been determined in advance, without the need to store write strategy information suitable for each and every optical disk.