CN101452731A - Memory card capable of preventing recording by theft - Google Patents
Memory card capable of preventing recording by theft Download PDFInfo
- Publication number
- CN101452731A CN101452731A CNA2007101949574A CN200710194957A CN101452731A CN 101452731 A CN101452731 A CN 101452731A CN A2007101949574 A CNA2007101949574 A CN A2007101949574A CN 200710194957 A CN200710194957 A CN 200710194957A CN 101452731 A CN101452731 A CN 101452731A
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- memory card
- mnemon
- theft
- magnetic region
- identification code
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Abstract
The invention relates to a record carrier, in particular to a generic memory card capable of preventing bootleg recording. An anti-bootleg recording memory card is provided with a control chip (11) and a memory unit (12) which have the same identification code. The identification code is complied by encrypting the addresses of all bad blocks of the memory unit (12), wherein the addresses of the bad blocks of the memory unit (12) are recoded during the manufacturing of the memory card. The identification code is transplanted to the control chip (11) and the memory unit (12) of the memory card respectively. The invention also provides a method for preventing software data keylogging and a method for preventing hardware keylogging.
Description
Technical field
The present invention relates to a kind of record carrier, particularly a kind of universal memory card of copying illegally of preventing.
Background technology
Now general desktop PC, notebook computer, mobile phone, PDA(Personal Digital Assistant), digital camera etc. all have built-in calculating punch, can read the data of general memory card.The kind of memory card is SD, MMC, Mini SD, FC, SDII etc. for example, and storage volume increases day by day, and volume is very little, has the trend that replaces CD.
The form of memory card generally as shown in Figure 1, memory card 1 comprises a control chip 11 and a mnemon 12, utilizes its pin 13 to insert electronic installations 2 and uses.This memory card form, the content of its mnemon 12 is very easily copied illegally, and the method for copying illegally is as described below:
1. the use CD writer is directly enrolled the data in the mnemon 12.
2. when the content revealing of memory card 1 is on the screen of electronic installation 2, utilize custom-designed in advance software to read content on the screen, this is called the software side record, as shown in Figure 2.
3. when the content revealing of memory card 1 is on the screen of electronic installation 2, utilize that hardware between its pin 13 and the electronic installation 2 is online directly to read the content that memory card 1 is transmitted, this is called the record of hardware side, as shown in Figure 3.
Summary of the invention
An object of the present invention is to provide a kind of preventing recording by theft and the memory card that duplicates and can take precautions against the record of hardware side that can take precautions against software data.
To achieve these goals, the present invention proposes following scheme:
A kind of memory card of preventing recording by theft, wherein, the control chip 11 of memory card all contains an identical identification code with mnemon 12, this identification code is weaved into this identification code by encryption with the bad block address then in the manufacture process of memory card the bad block address of mnemon 12 is all noted; This identification code is implanted respectively in the control chip 11 and mnemon 12 of memory card.
Mnemon 12 has two magnetic regions, one is general magnetic region, and the memory card proprietary software is only deposited in this magnetic region, and proprietary software can check earlier whether memory card exists when carrying out, and check corresponding magnetic region according to this unique identification sign indicating number, and proprietary software does not contain protected electronic data; It is two for hiding the magnetic region, and protected electronic data is deposited among this magnetic region, and the form of its magnetic region content is a proprietary format, and general electronic installation or software all can't this magnetic regions of access, have only this proprietary software to read and write this magnetic region.
A kind of memory card of preventing recording by theft, wherein, the number of times that the content of the mnemon 12 in memory card per second on the screen of electronic installation that links to each other represents picture is dynamic change, the random number of taking per second 22 to 32 times changes and represents picture.
Beneficial effect of the present invention is: the memory card that the present invention realizes can prevent to copy illegally, and that takes precautions against software data duplicates and prevent the record of hardware side.
Brief description of drawings
Fig. 1 is the form synoptic diagram of general memory card.
Fig. 2 is the synoptic diagram with software side record screen content.
Fig. 3 is with the online synoptic diagram that directly reads content that memory card transmits of hardware.
Fig. 4 is that the present invention's " dynamic rate alternating method " illustrates synoptic diagram.
The primary clustering symbol description
1 memory card
11 control chips
12 mnemons
13 pins
2 electronic installations
Embodiment
In order to prevent that CD writer from directly enrolling the data in the mnemon 12, the present invention takes method as described below:
Because each sheet mnemon 12 is when manufacture process, the capital produces the bad block of a little, and the bad block address of each sheet mnemon 12 is all inequality, therefore make in mnemon 12 and finish when testing, the bad block address of each sheet mnemon 12 all can be noted, then with a kind of be not that secret algorithm known to the stranger is weaved into an identification code with the bad block address of mnemon 12.Format magnetic region and engraving data stage in the fabrication process are burnt to the unique identification sign indicating number in the particular address of internal memory.This identification code is implanted respectively in control chip 11 and the mnemon 12, only had the control chip 11 of identical identification code and mnemon 12 and could match use, so the content of the mnemon 12 of can't copying illegally and using at all.Even utilize CD writer directly to read data in the mnemon 12, obtain its identification code, but, therefore can't decipher because of not knowing its secret algorithm, so be still futile.
The method that the strick precaution software data duplicates is that mnemon 12 is divided into two magnetic regions, one is general magnetic region, proprietary software is only deposited in its magnetic region, the bootlegger duplicates this proprietary software but can't carry out any action, because proprietary software can check earlier whether memory card exists when carrying out, and check corresponding magnetic region according to the unique identification sign indicating number, and proprietary software does not contain protected electronic data; It is two for hiding the magnetic region; protected electronic data is deposited among this magnetic region, and the form of its magnetic region content is a proprietary format, and general electronic installation or software all can't this magnetic regions of access; have only the present invention's proprietary software to read and write this magnetic region, this mechanism can effectively be taken precautions against software data and be duplicated.
For preventing the record of hardware side, the present invention takes method as described below:
Represent the 15-30 subframe because the mode that the content of mnemon 12 presents is a per second on the screen of electronic installation 2, utilize human persistence of vision to reach effect.So no matter software side record or the record of hardware side all must to represent the number of times of picture identical with the screen per second of electronic installation 2, content that could complete side record mnemon 12.Then design a kind of " dynamic rate method " in memory card 1 of the present invention, be that the number of times that content per second on the screen of electronic installation 2 of mnemon 12 represents picture is that the dynamic random number changes, take per second 22 to 32 times and carry out the random number change, so just can effectively prevent the record of hardware side.
The present invention further represents design a kind of " dynamic rate alternating method " on the mode of picture at per second on the screen.From left to right sweep trace divides singularization sweep trace and even numbers sweep trace on the screen, the present invention is different with the number of times that even numbers sweep trace per second represents picture at the odd number sweep trace, for example to represent the number of times of picture be 25 times to odd number sweep trace per second, the number of times that even numbers sweep trace per second represents picture is 30 times, and be that the dynamic random number changes, as shown in Figure 4, so more can prevent the record of hardware side.
Spirit of the present invention and scope are decided by following claim, are not subject to the foregoing description.
Claims (6)
1. the memory card of a preventing recording by theft, it is characterized in that: the control chip of memory card (11) all contains an identical identification code with mnemon (12), this identification code is weaved into this identification code by encryption with the bad block address then in the manufacture process of memory card the bad block address of mnemon (12) is all noted; This identification code is implanted respectively in the control chip (11) and mnemon (12) of memory card.
2. the memory card of preventing recording by theft as claimed in claim 1, it is characterized in that: mnemon (12) has two magnetic regions, one is general magnetic region, the memory card proprietary software is only deposited in this magnetic region, proprietary software can check earlier whether memory card exists when carrying out, and check corresponding magnetic region according to this unique identification sign indicating number, and proprietary software does not contain protected electronic data; It is two for hiding the magnetic region, and protected electronic data is deposited among this magnetic region, and the form of its magnetic region content is a proprietary format, and general electronic installation or software all can't this magnetic regions of access, have only this proprietary software to read and write this magnetic region.
3. the memory card of a preventing recording by theft is characterized in that: the number of times that the content of the mnemon in the memory card (12) per second on the screen of electronic installation that links to each other represents picture is dynamic change, and the random number of taking per second 22 to 32 times changes and represents picture.
4. the memory card of preventing recording by theft as claimed in claim 3 is characterized in that: it is different that from left to right sweep trace branch singularization sweep trace and even numbers sweep trace on screen, odd number sweep trace and the per second of even numbers sweep trace represent number of times.
5. as the memory card of claim 1,2,3 or 4 one of them described preventing recording by theft, it is characterized in that: the content of mnemon (12) all adopts the form of network browsing, can be common to desktop PC, notebook computer, mobile phone, PDA(Personal Digital Assistant), digital camera etc.
6. the memory card of preventing recording by theft as claimed in claim 5, it is characterized in that: the form of this network browsing is the xml form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101949574A CN101452731A (en) | 2007-12-07 | 2007-12-07 | Memory card capable of preventing recording by theft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101949574A CN101452731A (en) | 2007-12-07 | 2007-12-07 | Memory card capable of preventing recording by theft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101452731A true CN101452731A (en) | 2009-06-10 |
Family
ID=40734924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101949574A Pending CN101452731A (en) | 2007-12-07 | 2007-12-07 | Memory card capable of preventing recording by theft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101452731A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609492B (en) * | 2009-07-23 | 2012-03-21 | 凌阳科技股份有限公司 | Method and system for encrypting/decrypting embedded device |
| CN107341534A (en) * | 2017-07-18 | 2017-11-10 | 南京唯捷豪信息科技有限公司 | A kind of electronic card copy prevention method, device and management server |
-
2007
- 2007-12-07 CN CNA2007101949574A patent/CN101452731A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101609492B (en) * | 2009-07-23 | 2012-03-21 | 凌阳科技股份有限公司 | Method and system for encrypting/decrypting embedded device |
| CN107341534A (en) * | 2017-07-18 | 2017-11-10 | 南京唯捷豪信息科技有限公司 | A kind of electronic card copy prevention method, device and management server |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090610 |