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:
Dec. 04, 2001
Filed:
Dec. 08, 1998
Seigo Ito, Hanno, JP;
Hideyuki Toma, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A recording and reproducing system has a computer data table and an audio visual data table as address conversion tables for managing addresses necessary for a process in response to an access command for record or reproduction transmitted from a host system to a recording medium. When a defective block occurs, in case of computer data, a substitute block is used and the physical address of the defective block in the computer data table is rewritten to the physical address of the substitute block. In case of audio visual data, the data is written in the defective block and the physical address of the defective block in the audio visual data table is maintained. In response to an access command from the host system, the recording and reproducing system executes an access process to the recording medium with reference to the computer data table or the audio visual data table, in accordance with the kind of data to be accessed.