CN100474273C - Method and electronic device for preventing storing card from being written - Google Patents
Method and electronic device for preventing storing card from being written Download PDFInfo
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- CN100474273C CN100474273C CNB2006100352576A CN200610035257A CN100474273C CN 100474273 C CN100474273 C CN 100474273C CN B2006100352576 A CNB2006100352576 A CN B2006100352576A CN 200610035257 A CN200610035257 A CN 200610035257A CN 100474273 C CN100474273 C CN 100474273C
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- protect
- electronic installation
- storage card
- storage
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Abstract
This invention discloses one method and electron device to prevent memory card written, which comprises the following steps: fixing the write protection software into one electron device set with at least one plug tank for one memory card; write protection software to provide one write protection comparison list set with one information column bit relative write protection column, wherein the information column is to store tank bit and the column is set with one write protection item and after clicked, the insert tank in protection item is in write protection status.
Description
Technical field
The invention relates to a kind of method and electronic installation that prevents that storage card is written into; especially refer on an electronic installation, install a write-protect unit; with a write-protect table of comparisons that is provided by this write-protect unit; make the slot of this electronic installation, but can be in a write-protect state or a write state.
Background technology
In recent years, because electronics, computing machine science and technology and production, manufacturing is maked rapid progress with material technology, make the digital electronic product of general consumer grade, also can have high effect and quality, and seeing through cost reduces, development trend such as volume-diminished and weight saving, making that these digital electronic products are widely popular accepts, for example: digital camera (Digital Camera, DC), digital code camera (Digital Video, DV), PDA (Personal Digital Assistant) (Personal Digital Assi stant, PDA), MP3 music player (Mpeg layer 3 Player, MP3 Player) or Global Positioning System (GPS) (Global PositionSystem, GPS) etc.The data of general traditional digital electronic product, for example: music, image or navigation are with map etc., be mostly be stored in these digital electronic products in the built-in fixed memory module (as: flash memory (Flash Memory)), this fixed memory module is the storage space that a fixed capacity can be provided, to store data and to make the required software of this digital electronic product normal operation.
Yet, because the manufacturer of above-mentioned digital electronic product, via research and development constantly, and design, produce many digital electronic products that have more excellent results and quality, cause above-mentioned digital electronic product to need bigger storage space, can store data such as required high-quality (or claiming high power capacity) image, music or map, this measure causes the employed fixed memory module of general tradition, has not applied and has used.Therefore, under the effort of this manufacturer respectively, a kind of " storage card " is so be developed and form, for example: compact flash storage card (Compact Flash Card, CF Card) or multimedia storage card (Multi Media Card, MMC) etc., these storage cards have short and small frivolous, low price, be convenient for carrying and advantage such as high capacity, and can be on above-mentioned digital electronic product, optionally freely change, make on the above-mentioned digital electronic product, can infinitely expand in order to the storage space of storing data.
Again, said memory card also can be used for replacing general traditional disk sheet, make the user of this storage card, can be at a main frame (as: personal computer (Personal Computer, PC) or PDA (Personal Digital Assistant) (Personal Digital Assistant, PDA) etc.), to report, data storage such as operation are to this storage card, as long as this storage card is inserted in to another main frame, can be to another main frame with the data conversion storage in this storage card, and can reach above-mentioned data are carried or with data conversion storage to the first-class purpose of another main frame, therefore, by above-listed described advantage, make these storage cards only need one to push market, promptly be subjected to the favor of society.
In addition; because these storage cards can be inserted on the different main frames; data on easily feasible respectively this main frame; override original data in this storage card, therefore, on general traditional storage card; be to be provided with a write-protect switch; this write-protect switch is when this write-protect switch is struck, but can make this storage card be in write-protect state or write state in order to protect the data in this storage card.
Therefore, when this storage card is inserted in a main frame, and when being in the write-protect state, this main frame only can be in this storage card reading of data, and data can't be write in this storage card; Again, if stir this write-protect switch, but when making this storage card be in write state, this main frame can write data and be stored in this storage card.So, by the design of this write-protect switch, can avoid the user this storage being stuck in when using on each main frame, mistake overrides original data in this storage card with the data on the different main frames.
And the write-protect switch of these storage cards is made of mechanical structure; make that the structure of this storage card inside is too complicated; and can't have functions such as waterproof and dustproof, and, also make the volume of this storage card effectively to dwindle for fear of the structure of write-protect switch; therefore; how to design a kind of this write-protect switch that need not, also can prevent from data are write this storage card, this measure; be very urgent at present in fact, and an important topic that needs to be resolved hurrily.
Summary of the invention
In view of the above problems, the invention provides a kind of can making on the storage card and need not be provided with write-protect switch, also can prevent from data are missed method and the electronic installation that storage card is written into that prevent that writes in the storage card.
A purpose of the present invention; be that a write-protect unit is installed on the electronic installation; and this electronic installation is provided with at least one slot; can be for plugging a storage card (as: compact flash storage card (Compact Flash Card; CF Card) or multimedia storage card (Multi Media Card; MMC) etc.); and this write-protect unit can provide a write-protect table of comparisons; and on the write-protect table of comparisons, be provided with at least one information field; reach a write-protect field corresponding to this information field; wherein the information field is the groove position (as: D groove) in order to store this slot; and in this write-protect field, be provided with a write-protect option; and this write-protect option can make the slot corresponding to this write-protect option be in a write-protect state after being clicked.
Another purpose of the present invention; be a user on this electronic installation; desire with data storage when being inserted in the storage card of this slot; this electronic installation is promptly controlled in this write-protect unit; forbid data are sent in this storage card; and produce a rub-out signal, to allow the user learn that this slot is to be in a write-protect state.
Another object of the present invention; be intended to this write-protect option and do not clicked or be cancelled under the situation that clicks, make slot, but be in a write state corresponding to this write-protect option; the user can be with data storage to the storage card that is inserted in slot on this electronic installation.
By method and the electronic installation that prevents that storage card is written into of the present invention; the user is on electronic installation; desire with data storage when being inserted in the storage card of this slot; this electronic installation is promptly controlled in this write-protect unit; forbid data are sent in the storage card; and produce a rub-out signal, can allow the user learn that this slot is for being in a write-protect state.
Description of drawings
Fig. 1 is the circuit block diagram of electronic installation of the present invention;
Fig. 2 is the structural representation of the present invention's one write-protect table of comparisons;
The action flow chart of the write-protect unit that Fig. 3 installs for electronic installation of the present invention;
Fig. 4 is another action flow chart of write-protect of the present invention unit;
Fig. 5 implements aspect for one of electronic installation of the present invention.
Embodiment
The invention provides a kind of method and electronic installation that prevents that storage card is written into; see also Figure 1 and Figure 2; it installs a write-protect unit 20 on an electronic installation 10; and this write-protect unit 20 can provide a write-protect table of comparisons 21; on the write-protect table of comparisons 21, be provided with at least one information field 22 (or claiming the groove position 31 fields); reach a write-protect field 23 corresponding to this information field 22; wherein in this information field 22; but relevant informations such as the groove position 31 (as: D groove or E groove etc.) of at least one slot 30 that storage electronics 10 is set or its disc driver sequence number; and in this write-protect field 23; then be provided with a write-protect option 24; click for the user, but to select being in write-protect state or write state corresponding to the slot 30 of write-protect option 24.Therefore, when this write-protect option 24 was clicked, this slot 30 corresponding to this write-protect option 24 can be in the write-protect state; Do not clicked and work as write-protect option 24, or be cancelled when clicking,, but can be in write state corresponding to the slot 30 of write-protect option 24.
In the present invention, when described electronic installation 10 is activated, see also Fig. 1,2 and shown in Figure 3, this write-protect unit 20 is to handle according to following step:
(101) at first, read the groove position 31 of slot 30 on the electronic installation 10;
(102) groove position 31 is stored in the information field 22;
(103) analyze the write-protect table of comparisons 21, to obtain content corresponding to the write-protect field 23 of information field 22;
(104) do you judge whether the write-protect option 24 in the write-protect field 23 is clicked? if, promptly finish even be in the write-protect state corresponding to the slot 30 of write-protect option 24; Otherwise, but make slot 30 be in write state corresponding to this write-protect option 24, then, finish again.
See also Fig. 1,2 and shown in Figure 5, slot 30 can be for plugging a storage card 32 (as: compact flash storage card (Compact Flash Card, CF Card) or multimedia storage card (Multi Media Card, MMC) etc.), so that a storage space to be provided, the storage data such as music, image or map that sub-device 10 utilizes of can powering.Therefore; when this storage card 32 is inserted in slot 30; and the user is at electronic installation 10 (as: PDA (Personal Digital Assistant) (Personal Digital Assistant; PDA) or digital camera (DigitalCamera) etc.) on; desire is with data storage to storage card 32 time; see also Fig. 1,2 and shown in Figure 4, this write-protect unit 20 is to handle according to the following step:
(201) at first do you, judge whether the write-protect option 24 corresponding to slot 30 is clicked? if, represent that promptly slot 30 is in the write-protect state, carry out subsequent treatment according to step (202); Otherwise, but represent that promptly this slot 30 is in write state, then handles according to step (204);
(202) control electronic installation 10 stops data being sent in the storage card 32 that is inserted in slot 30;
(203) produce a rub-out signal, show slot 30 current be to be in the write-protect state; Then, promptly finish;
(204) control electronic installation 10 is sent to data storage in the storage card 32 that is inserted in slot 30; Then, finish again.
At this, need special declaration, described storage card 32 is inserted in the structural design of slot 30, only is one embodiment of the present invention.This slot 30 also can be the set transmission ends of electronic installation 10, for example: universal serial bus (Universal Serial Bus, USB) transmission interface or No. 2 proposed standard (Recommended Standard-2, RS2) transmission interface etc., and this storage card 32 also can be the external device (not shown) that has with another transmission ends of this transmission ends same size, for example: action hard disk (Mobile Hard Di sk) or digital camera etc.Therefore; when two transmission ends are connected; make when this external device is connected together mutually with electronic installation 10; this external device is on electronic installation 10; formed groove position (as: F groove) or its relevant information also can be stored in the information field 22 of write-protect table by write-protect unit 20, so; this write-protect unit 20 can judge corresponding to the write-protect option 24 in the write-protect field 23 of information field 22 whether clicked, but so that this external device is in write-protect state or write state.
In a preferred embodiment of the present invention, see also shown in Figure 1ly, electronic installation 10 still comprises: a control circuit 11, it is in order to connect each relevant spare part and circuit in the electronic installation 10, to make this electronic installation 10 be able to normal operation; One display unit 12, it is connected with control circuit 11, can be a LCD (Liquid Crystal Display, LCD), and can in order to display control circuit 11 produce literal and figure; One storage unit 13, it is connected with control circuit 11, and storage space (MemorySpace) can be provided, and storage allows required software of electronic installation 10 normal operations (as: write-protect unit 20) and data; One sounding component 14, it is connected with this control circuit 11, and can be loudspeaker or earphone, and can be in order to play the voice (or claiming sound) that this control circuit 11 is produced.
In this example, see also shown in Figure 1ly, this rub-out signal is with manifestation modes such as literal or figures, is presented on the display unit 12; Or, play out from sounding assembly 14 with manifestation modes such as voice (or claiming sound), music; So, the person of using of electronic installation 10 can pass through this display unit 12 or sounding component 14 etc., and learns the content of rub-out signal like a cork, thereby stops the action of data storage to this storage card 32.
Claims (6)
1. method that prevents that storage card is written into, this method are that a write-protect unit is installed on an electronic installation, and when electronic installation is activated, it is characterized in that: this method may further comprise the steps:
Read the groove position of at least one slot on the electronic installation;
The groove position is stored at least one information field set on the write-protect table of comparisons, on the write-protect table of comparisons corresponding to the Information bit position, other is provided with a write-protect field, and in the write-protect field, be provided with a write-protect option, click for the user, to select being in the write-protect state corresponding to the slot of this write-protect option;
When the electronic installation desire is plugged a data storage to the groove position a storage card, this method still comprises the following steps:
Judge whether the write-protect option is clicked;
If the write-protect option is clicked, expression groove position is to be a write-protect state, promptly controls electronic installation, stops data being sent in the storage card.
2, according to the described method that prevents that storage card is written into of claim 1, it is characterized in that:,, but be to be write state corresponding to the slot of this write-protect option that does not click if the write-protect option is not clicked or is cancelled when clicking.
3, according to the described method that prevents that storage card is written into of claim 1, it is characterized in that: at the control electronic installation, when stopping that data are sent to storage card, produce a rub-out signal, show slot current be to be in a write-protect state.
4, a kind of electronic installation that prevents that storage card is written into, it is characterized in that: this electronic installation comprises having:
One control circuit in order to connect each relevant spare part and circuit in this electronic installation, makes this electronic installation be able to normal operation;
One storage unit, it is connected with control circuit, and memory headroom is provided, and storage allows electronic installation normal operation required software and data;
At least one slot, it is connected with control circuit, and can be for the data of pegging graft a storage card, allowing control circuit can read in the storage card and being stored, or data are write in the storage card stores;
One write-protect unit, it is for being installed in the storage unit, and provide a write-protect table of comparisons, and on this write-protect table of comparisons, be provided with at least one information field, reach a write-protect field, wherein corresponding to this information field, this information field is the groove position in order to storage slot, then be provided with a write-protect option in this write-protect field, after this write-protect option is clicked, promptly be the write-protect state corresponding to the slot of this write-protect option;
When the electronic installation desire is plugged a data storage to the groove position a storage card; judge whether the write-protect option is clicked, if the write-protect option is clicked, expression groove position is to be a write-protect state; promptly control electronic installation, stop data being sent in the storage card.
5, according to the described electronic installation that prevents that storage card is written into of claim 4, it is characterized in that: electronic installation comprises a display unit, and this display unit is connected with control circuit.
6, according to the described electronic installation that prevents that storage card is written into of claim 4, it is characterized in that: electronic installation comprises a sounding component, and this sounding component is connected with control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100352576A CN100474273C (en) | 2006-04-28 | 2006-04-28 | Method and electronic device for preventing storing card from being written |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100352576A CN100474273C (en) | 2006-04-28 | 2006-04-28 | Method and electronic device for preventing storing card from being written |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101063958A CN101063958A (en) | 2007-10-31 |
| CN100474273C true CN100474273C (en) | 2009-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100352576A Expired - Fee Related CN100474273C (en) | 2006-04-28 | 2006-04-28 | Method and electronic device for preventing storing card from being written |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100474273C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262598B (en) * | 2010-05-28 | 2016-10-05 | 纬创资通股份有限公司 | Accumulator system and the correlation technique of write protection can be promoted |
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2006
- 2006-04-28 CN CNB2006100352576A patent/CN100474273C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101063958A (en) | 2007-10-31 |
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Granted publication date: 20090401 Termination date: 20160428 |