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:
May. 13, 2003
Filed:
Oct. 23, 1997
Takahiro Yamada, Kadomashi, JP;
Masashi Yamaguchi, Osakashi, JP;
Abstract
A method for managing files in a library in a manner to access files in a library operating with a plurality of preservation recording media storing data as files, while copying data more highly required to be reproduced to another storage device of high-speed access, including recording a playback request of the file when required; creating frequency information of the playback request of each file according to the playback request; and copying a file that is judged to have very frequent playback request, at specified time intervals or when the number of the playback requests reaches a specified value. Therefore, more requests from terminal units can be accepted to transmit files than when copied only to a hard disk as the storage device of high-speed access.