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:
Nov. 24, 2015
Filed:
Mar. 29, 2013
Hitachi-lg Data Storage, Inc., Tokyo, JP;
Hitachi Consumer Electronics Co., Ltd., Tokyo, JP;
Yasuo Watanabe, Machida, JP;
Kazuyoshi Serizawa, Tama, JP;
HITACHI-LG DATA STORAGE, INC., Tokyo, JP;
HITACHI CONSUMER ELECTRONICS CO., LTD., Tokyo, JP;
Abstract
Deduplication is executed in a storage device having low random access performance, such as an optical disk library. When an optical disk that is not inserted into an optical disk drive needs to be accessed in order to execute binary compare, data to be binary compared is stored in a temporary memory area in order to postpone the binary compare, and on the timing when the optical disk is inserted, the postponed binary compare is executed. Before second deduplication, which is deduplication between data to be stored in the storage device and the data in the optical disk library, is executed, first deduplication, which is deduplication between the data to be stored in the storage device and the data in the temporary memory area, is executed.