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:
Sep. 12, 2006
Filed:
Mar. 25, 2004
Masaaki Hikosaka, Tokyo, JP;
Hiroto Handa, Tokyo, JP;
Masaaki Hikosaka, Tokyo, JP;
Hiroto Handa, Tokyo, JP;
Clarion Co., Ltd., Tokyo, JP;
Abstract
In a hard disk unit, a disassembling and assembling unit disassembles and assembles data in accordance with the size of data to be written from host equipment to the hard disk unit and a sector size and a cluster size as a unit to be read or written. An encoder performs predetermined arithmetic operation to generate a specific bit string as an encoding key based on at least the identification information on the host equipment or on a CPU of the host equipment, and encodes the write data by using the encoding key. The encoding process is performed by flipping bits having a predetermined correspondence with the contents of the encoding.