Invention Grant
- Patent Title: Data-storage device and flash memory control method
- Patent Title (中): 数据存储设备和闪存控制方法
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Application No.: US13862816Application Date: 2013-04-15
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Publication No.: US09244833B2Publication Date: 2016-01-26
- Inventor: Chang-Kai Cheng
- Applicant: Silicon Motion, Inc.
- Applicant Address: TW Jhubei, Hsinchu County
- Assignee: SILICON MOTION, INC.
- Current Assignee: SILICON MOTION, INC.
- Current Assignee Address: TW Jhubei, Hsinchu County
- Agency: McClure, Qualey & Rodack, LLP
- Priority: TW101119266A 20120530; TW101132461A 20120906
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/02

Abstract:
FLASH memory is allocated to provide a data-storage device and management tables. The management tables may record logical-to-physical address mapping information in a hierarchical structure consisting of at least two levels. Further, in addition to the logical-to-physical address mapping information, the management tables may further provide a valid page count table and an invalid block record. The logical-to-physical address mapping information is updated after an update of the valid page count table is completed. The invalid block record is maintained based on the valid page count table.
Public/Granted literature
- US20130326121A1 DATA-STORAGE DEVICE AND FLASH MEMORY CONTROL METHOD Public/Granted day:2013-12-05
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