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. 27, 2004
Filed:
Dec. 03, 2001
Tetsu Kimura, Kanagawa, JP;
Akio Ishikawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An information recording apparatus for recording data into a recording medium taking as recording unit a sector corresponding to a predetermined amount of information signal, comprises a file management unit ( ) to classify an information signal for recording into the recording medium ( ) into a number, two or more, of groups depending upon the importance of the information signal, and a write/read unit ( ) to record the information signal into the recording medium ( ) while dealing with a defective sector, if any, in the recording medium ( ) in a manner designated for the group to which the information signal has been classified to belong at the above classifying step, and record a highly important information signal, when a defective sector is found by checking up the information signal recorded in the recording medium ( ), into another sector.