Portable memorizer and partitioned data protecting method

A portable memory, storage area technology, applied in static memory, digital memory information, information storage, etc., can solve the problems of restricted data sharing, user remembering, data sharing inconvenience, etc., to achieve high security, low implementation cost, good cost The effect of advantage

Active Publication Date: 2009-10-07
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this method also requires the user to remember the password
Also, this approach will limit data sharing
For example, USB flash drives are usually used to share data among colleagues. If you must enter the correct password when accessing the USB flash drive, it will obviously bring great inconvenience to data sharing.

Method used

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  • Portable memorizer and partitioned data protecting method
  • Portable memorizer and partitioned data protecting method
  • Portable memorizer and partitioned data protecting method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0053] Portable storage is usually used to connect readable and writable devices similar to computers, through which operations such as reading and writing can be performed on the portable storage. Generally, interfaces used to connect portable storage and readable and writable devices include: Universal Serial Bus (USB) interface, Institute of Electrical and Electronics Engineers (IEEE) 1394 interface, and Personal Computer Memory Card International Association (PCMCIA) interface.

[0054] Such as figure 1 As shown, the portable memory 1 provided in the first embodiment of the present invention includes: an interface 11 and a main body 12 . Wherein, the interface 11 is used for connecting an external readable and writable device, and the interface 11 may specifically be a USB interface, an IEEE 1394 interface, or a PCMCIA interface.

[0055]The main body part 12 specifically includes:

[0056] The storage unit 122 is used to store data. Specifically, the storage unit 122 in...

no. 2 example

[0069] This embodiment has a similar figure 2 The difference between the shown circuit structure and the first embodiment is that in this embodiment, the switch signal is not generated through the control of the mechanical lock cylinder to control the touch switch, but is generated through the control of the multi-contact combination lock.

[0070] The multi-contact password lock includes a touch switch array, a key comparison circuit and a hardware key for identifying authorized user identities. Among them, such as Figure 4A As shown, the hardware key 40 is a solid sheet 41 provided with a matrix of circular holes 42 . According to whether each circular hole 42 gets through, a permutation and combination data can be obtained, such as Figure 4A 1024 keys can be combined out of ten circular holes 42 in the cylinder. Such as Figure 4B As shown, when the hardware key 40 is inserted into the touch switch array 43, each touch switch 44 on the touch switch array 43 will have...

no. 3 example

[0076] The portable memory in this embodiment includes an interface, a read-write control unit, a storage area selection unit, and a storage unit, wherein the storage unit includes a personal storage area and a shared storage area, and the storage area selection unit includes a chip selection circuit and fingerprint comparison unit,

[0077] The fingerprint comparison unit is used to receive the fingerprint information of the user and compare it with the pre-stored fingerprint information of the authorized user;

[0078] The chip selection circuit is used to select the personal storage area as the current storage area when the comparison results of the fingerprint comparison unit are the same; otherwise, select the shared storage area as the current storage area.

[0079] The read-write control unit is connected to the interface and the storage unit, and is used to realize the read-write operation on the current storage area.

[0080] A kind of partition data protection metho...

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PUM

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Abstract

The invention provides a portable memorizer and a partitioned data protecting method thereof. The portable memorizer comprises an interface used for connecting with external equipment. The portable memorizer is characterized by also comprising a reading and writing control unit, a memory area selecting unit and a memory cell, wherein the memory cell comprises a personal memory area and a share memory area; the memory area selecting unit is used for receiving the identity of the current user and judging whether the current user is an authorized user or not; if so, the personal memory area is selected as the current memory area; if not, the share memory area is selected as the current memory area; and the reading and writing control unit is connected with the interface and the memory cell and is used for realizing the reading and writing operations of the current memory area. Based on the portable memorizer, the data sharing and the private data security protection can be simultaneously realized.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a portable memory and a partition data protection method thereof. Background technique [0002] Portable memory, such as U disk, has become an important means and tool for people to store and exchange data files in work and life. While they provide people with the convenience of sharing data, they also bring a major hidden danger to the security of personal privacy data, especially as the storage capacity of USB flash drives continues to rise, this problem is more prominent. For example, when the portable storage is lost or lent to others, personal private data stored in the portable storage may be obtained by others, thereby causing losses to the user. [0003] In order to improve the security of user data, there are several solutions in the prior art as follows: [0004] By means of software, the relevant folders or file directories in the memory are encrypted. Accessin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/10G11C7/24
Inventor 杨立中刘向东迟连滨
Owner LENOVO (BEIJING) LTD
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