Invention Grant
US08312554B2 Method of hiding file at data protecting mode for non-volatile memory module, memory controller and portable memory storage apparatus
有权
在非易失性存储器模块，存储器控制器和便携式存储器装置的数据保护模式下隐藏文件的方法
- Patent Title: Method of hiding file at data protecting mode for non-volatile memory module, memory controller and portable memory storage apparatus
- Patent Title (中): 在非易失性存储器模块，存储器控制器和便携式存储器装置的数据保护模式下隐藏文件的方法
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Application No.: US12882212Application Date: 2010-09-15
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Publication No.: US08312554B2Publication Date: 2012-11-13
- Inventor: Chih-Ling Wang , Chih-Kang Yeh
- Applicant: Chih-Ling Wang , Chih-Kang Yeh
- Applicant Address: TW Miaoli
- Assignee: Phison Electronics Corp.
- Current Assignee: Phison Electronics Corp.
- Current Assignee Address: TW Miaoli
- Agency: Jianq Chyun IP Office
- Priority: TW99125120A 20100729
- Main IPC: G06F12/00
- IPC: G06F12/00
Abstract:
A data protecting method for a portable memory storage apparatus is provided. The method includes determining whether a mode signal is at a data protecting mode, and performing a file hiding procedure to change a file allocation table if the mode signal is at the data protecting mode, wherein a host system coupled to the portable memory storage device is allowed to only access a portion of logical addresses of the portable memory storage apparatus according to the changed file allocation table and files stored in the portable memory storage apparatus before the file hiding procedure are written into another portion of the logical addresses. Additionally, the method still includes performing a file showing procedure to change the file allocation table if the mode signal is not at the data protecting mode, wherein the host system may access all the logical addresses according to the changed file allocation table.
Public/Granted literature
- US20120030411A1 DATA PROTECTING METHOD, MEMORY CONTROLLER AND PORTABLE MEMORY STORAGE APPARATUS Public/Granted day:2012-02-02
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