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:
Sep. 03, 1996
Filed:
Feb. 15, 1994
Kunimaro Tanaka, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical recording medium and apparatus discriminates media of a direct overwrite light modulation type from media which are not of the direct overwrite light modulation type. The apparatus adapts both light power used for recording and erasing and recording method according to the medium type discriminated. A method of using both direct overwrite optical recording media at non-direct overwrite optical recording media in a single apparatus includes steps of writing control information onto a medium, including an indication of the type of overwrite operation and power levels appropriate to the medium, and adapting the recording apparatus to use the appropriate recording method and power levels for the medium type detected.