Invention Grant
- Patent Title: Memory system with fixed and variable pointers
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Application No.: US12529227Application Date: 2009-02-10
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Publication No.: US08438343B2Publication Date: 2013-05-07
- Inventor: Junji Yano , Hidenori Matsuzaki , Kosuke Hatsuda , Shigehiro Asano , Shinichi Kanno , Toshikatsu Hida
- Applicant: Junji Yano , Hidenori Matsuzaki , Kosuke Hatsuda , Shigehiro Asano , Shinichi Kanno , Toshikatsu Hida
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-051267 20080229; JP2008-051378 20080229
- International Application: PCT/JP2009/052590 WO 20090210
- International Announcement: WO2009/107506 WO 20090903
- Main IPC: G06F12/06
- IPC: G06F12/06

Abstract:
A memory system includes a volatile first storing unit, a nonvolatile second storing unit, and a controller. The controller performs data transfer, stores management information including a storage position of the data stored in the second storing unit into the first storing unit, and performs data management while updating the management information. The second storing unit has a management information storage area for storing management information storage information including management information in a latest state and a storage position of the management information. The storage position information is read by the controller during a startup operation of the memory system and includes a second pointer indicating a storage position of management information in a latest state in the management information storage area and a first pointer indicating a storage position of the second pointer. The first pointer is stored in a fixed area in the second storing unit and the second pointer is stored in an area excluding the fixed area in the second storing unit.
Public/Granted literature
- US20110185107A1 MEMORY SYSTEM Public/Granted day:2011-07-28
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