Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 7, 2011
Patent Application Number
11990775
Date Filed
September 28, 2006
Patent Primary Examiner
Patent abstract
The present invention provides an optical disc on which a visible image can be formed by irradiation of laser light, which comprises a logo area on which visible information is indicated, a pre-pit signal area, and an image forming area on which a visible image can be formed by irradiation of laser light; and an image forming method of forming a visible image by irradiation of laser light on an optical disc, the method including detecting a pre-pit signal from a pre-pit signal area formed on the optical disc, and forming the visible image based on the result of the detection, wherein the optical disc is the optical disc of an aspect of the invention.
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