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:
Dec. 11, 2012
Filed:
Jun. 19, 2008
Jin-kyu Kim, Seoul, KR;
Kyoung-il Bang, Gyeonggi-do, KR;
Hyung-gyu Lee, Seoul, KR;
Abstract
A data management system includes a data processor configured to provide a file system module configured to store first data in a flash memory in block units and a filter layer module configured to receive second data from the file system module and to store the second data in a phase-change random access memory (PRAM) in sub-block units. The filter layer module may be configured to identify difference data in the second data received from the file system module by comparing the received second data and third data stored in the PRAM, and to write the identified difference data to the PRAM. The second data may include file metadata and the first data may include data other than file metadata. The sub-block units may be byte units.