Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Pantas Sutardja0
Date of Patent
May 3, 2011
0Patent Application Number
119865200
Date Filed
November 21, 2007
0Patent Primary Examiner
Patent abstract
A hard disk drive (HDD) is disclosed that includes a hard disk control (HDC) module and phase change memory (PCM). The PCM communicates with the HDC module and includes a plurality of memory cells that store data. Each of the memory cells includes a phase change material having N states. N is an integer greater than or equal to three. The HDC module caches at least one of user data and a computer program, which is stored by a magnetic storage medium that is associated with the HDD, in the PCM.
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