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:
Nov. 04, 2008
Filed:
Nov. 04, 2005
Kyohji Hattori, Tokyo, JP;
Kenichi Aihara, Tokyo, JP;
Katsuyuki Yamada, Tokyo, JP;
Fumiya Ohmi, Tokyo, JP;
Eiji Noda, Tokyo, JP;
Yujiro Kaneko, Tokyo, JP;
Yuki Nakamura, Tokyo, JP;
Hiroko Iwasaki, Tokyo, JP;
Kyohji Hattori, Tokyo, JP;
Kenichi Aihara, Tokyo, JP;
Katsuyuki Yamada, Tokyo, JP;
Fumiya Ohmi, Tokyo, JP;
Eiji Noda, Tokyo, JP;
Yujiro Kaneko, Tokyo, JP;
Yuki Nakamura, Tokyo, JP;
Hiroko Iwasaki, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A method and apparatus for initializing optical recording media is provided that detects the intensity of a reflective light off of an optical recording media and analyzes the initializing condition based on the detected intensity during an initializing process. The light is radiated on a rotating phase-change optical recording medium. The light may be moved in a radial direction of the optical recording medium. The detected intensity of the reflected light may be used to identify crystallized portions and amorphous portions of the optical media. The initialization process can be adaptively controlled to ensure proper initialization. If desired, re-initialization can be limited to those areas detected to be outside of the predetermined parameters.