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:
Apr. 06, 2010
Filed:
Apr. 11, 2006
Yasuhiko Teranishi, Kanagawa-ken, JP;
Yasuhiko Teranishi, Kanagawa-ken, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A first data-recorded region is formed in one of multiple recording layers of a rewritable optical disc before a second data-recorded region is formed therein. A first on-disc position is related to an innermost position within the second data-recorded region. Information is reproduced from a recording management area of the disc. A second on-disc position is derived from the reproduced information. The second on-disc position is in substantial coincidence with an outermost position within the first data-recorded region. The first on-disc position and the second on-disc position are compared to decide whether an unused portion is present in or absent from a region therebetween. When the unused portion is present, padding data is recorded thereon. The second on-disc position is updated into substantial coincidence with an outermost position within the second data-recorded region. The information in the recording management area is updated to reflect the updated second on-disc position.