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:
Jan. 30, 2001
Filed:
Feb. 09, 1998
Norichika Mine, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A reproduction system includes a host apparatus and a reproduction apparatus for executing a reproduction operation with respect to a predetermined recording medium, both connected so as to mutually communicate. Defect management information is read from the recording medium for necessary address transformation so that the host apparatus can perform the defect management of the recording medium. When requesting the reproduction apparatus to reproduce data, the host apparatus transmits to the reproduction apparatus, physically-reading position information formed by performing address transformation in accordance with the defect management condition. The reproduction apparatus does not need to perform defect management when reproducing data from a read only medium but also a random access medium. This enables provision of a reproduction apparatus capable of using the random access memory medium, with the similar circuit size and cost of a reproduction apparatus adapted for only the read only medium.