TWI273405B - Method and electronic device for preventing memory card from being written - Google Patents

Abstract

The present invention provides a method and electronic device for preventing memory card from being written. A piece of write-prohibition software is installed in an electronic device which is configured with at least one insertion slot for receiving a memory card. The write-prohibition software is able to provide a write-prohibition mapping table configured thereon which comprises at least one information field and a write-prohibition field corresponding to the information field. The information field is provided to store the slot location of the insertion slot, such as D slot. The write-prohibition field has a write-prohibition option. When the write-prohibition option is checked, the insertion slot corresponding to the write-prohibition option enters a write-prohibition state. Therefore, when the user wants to store data to the memory card inserted in the insertion slot on the electronic device, the write-prohibition software controls the electronic device to prohibit data from being transferred to the memory card and generates an error signal to make the user realize that the insertion slot is in a write-prohibition state.

Description

1273405 Description of the Invention (1) Technical Field of the Invention The present invention relates to a method and an electronic device for preventing a memory card from being written, and more particularly to installing an anti-writing software on an electronic device for borrowing the software. An anti-write comparison table is provided such that the slot of the electronic device can be in a write-protected state or a writable state. ~ [Prior Art] In recent years, due to the rapid development of electronics, computer technology and production, manufacturing and materials technology, the digital electronic products of general consumer grades can also have extremely high effects and quality, and the cost is reduced. Trends such as volume reduction and weight reduction have made these digital electronic products widely accepted, such as digital cameras (Digital Cameras, DC), digital video cameras (DV), personal digital assistants (Personal Digital Assistant). , PDA), MP3 music player (Mpeg layer 3 Player, MP3 Player) or Global Positioning System (GPS). The data of traditional digital electronic products, such as music, video or navigation maps, are mostly stored in the digital electronic products built into a fixed type of hidden components (such as · flash memory (nash) In the memory), the fixed memory component provides a fixed-capacity memory space for storing the data and the software required for the digital electronic product to function properly. However, as these digital electronic product manufacturers continue to research and develop, they have designed and manufactured many digital products with better effects and quality, which makes these digital products require more memory.

1273405

V. Description of invention (2) Body space can store the high quality required (or called Gaole or map, etc.) This action causes the use of the general tradition to use it. Because & The manufacturer's product: "Lv Ji recall card" was developed, for example, Compact Flash Card (CF Card) or Multimedia Media Card (MMC), etc. = thin, cheap, easy to carry and large capacity, and m-bit electronic products, free to change freely 'to make these digital power; on the production port, the memory space for storing data can be expanded indefinitely. > In addition, these memory cards can also be used to replace the conventional traditional floppy disk. A user of the memory card can be on a host computer (such as a personal computer (Personal Computer 'PC) or a personal digital assistant (Personal Digital) On the Assistant, PDA, etc., data such as reports, jobs, etc. are stored on the memory card, and after the memory card is inserted into another host, the data in the memory card can be transferred to another host. And can carry such information with you Or the purpose of transferring the data to another host, etc., therefore, by virtue of the advantages described above, the memory cards are pushed into the market, which is favored by the public. The card can be inserted on different hosts, so that the data on the host can easily cover the original data in the memory card. Therefore, the conventional memory card has an anti-write switch, and the anti-write switch is provided. The relationship can be used to protect the data in the memory card, and when the anti-write switch is toggled, the memory card can be made in a write-protected state or a writable state.

It is this, when the s memory card is inserted in a host, and is in write-protected state

1273405, the ^ can only read the data from the memory card, but can not write the data can be written into the ^ card, and if the anti-write switch is toggled, the memory card is inside If the status is 1, the host can write and save the data to the memory card. The design of the anti-write switch is to avoid the user's mistake when using the cover: ▲ on each host. The data on different hosts will be overwritten with the original information in the card. Structure = 忒 忒 圮 之 之 之 之 之 , , , , 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般 一般And because of the structure of the anti-write switch, the volume of the no-love" can not be effectively reduced. Therefore, how to design the Sushen write switch can also prevent the data from being written to the memory card. There is no time to delay, and an important issue needs to be solved urgently. SUMMARY OF THE INVENTION诸多 Many of the professional knowledge of the traditional traditional memory card anti-write switch: ΐ ϋ, based on years of technical experience, and accumulated r to prevent Γ 情 + + 10 pairs of the above problems, the development and design of the present invention A method for arranging: ii: into the method and the electronic device, and writing the record by the delay of the invention does not need to be provided with the anti-write switch, and can also prevent the capital from being used, i ί; Install an anti-write software on the electronic device (such as · f with at least one slot for inserting a love lover to ... speed memory card (.. learning or eve media memory card (Multi Media) Card, mmc) Page 7 1273405 V. Invention Description (4) Table, the anti-write check table is one of the anti-write barrier slots (such as D, the anti-write option is in a write-protected state. When the electronic device is placed on the memory card, the anti-writing body is in the memory card, and is generated in a write-protected state. The item is not selected or taken in the slot, and the data can be stored in the device, etc., The anti-writing software can provide an anti-wolf pair with at least an information field, and corresponding to the 'location, Wherein, the information field is used to store the slot slot, and the anti-write block has an anti-write option selected to enable the slot corresponding to the anti-write option, and another object of the present invention. When a user wants to store data to a memory card inserted in the slot to control the electronic device, the data is prohibited from being transmitted to the error signal, so that the user knows that the slot is another one of the inventions. The purpose is to write the corresponding anti-write option in the state of the anti-write selection point, and the user inserts the electronic device into the memory card of the slot. The review committee can perform the matching feature and its function, and make a more detailed diagram. The following is a detailed description of the purpose, shape, and structure of the present invention. Embodiments [Embodiment] ^ The present invention is a The method and the electronic device for preventing the memory card from being written" 'Please refer to the figure 1 and 2' to install an anti-write software 20 on an electronic device 1 '. The anti-writing software 20 can provide an anti-write pair Zhao, two anti-write comparison table 21 has at least one capital Field 22 (or slot 31 field), and an anti-write block 23 corresponding to the information block 22, the capital 1273405 5, the invention description (5) in the field 22, can be stored in the electronic Install slot 31 (such as: D slot or F, 々 * U sighs) a slot 30 and the anti-write block 23, 々 disk player serial number and other related information, select to select Library:, =: an anti-write option 24, for the user to point or write state: Borrow: = 2 should be 4 slots 30 is in the anti-write state 兮 ρ yiyi, $馆 9/1 + 匕 * violation When the anti-write option 24 is selected, the slot 3 of the anti-write far item 24 is opposite to the write option 24, which is not selected by the write option 24, or is: anti-write heart, and the defense 24 If the slot is 3〇, it can be in the writable state. The anti-write option is set to - when the electronic device 1 is activated, please refer to the "No" and "3". ;* |Wanma software 2〇 is carried out according to the following steps. (101) 'First 'read the electronic device 1Q, the slot 3 〇 slot d 1 , (102) 嗣, the The slot 31 is stored in the information block 22; (1 0 3 )硐, the anti-write pair is analyzed According to Table 2, the content of the anti-write block 23 is blocked by the information block 22; after the w is 3, it has been clicked on the anti-write #30 lj 4 )硐' to determine the anti-write option in the anti-write block 2 3 2 4 whether it is farther than 1 if the slot 30 corresponding to the anti-write option 24 is sorrowful, that is, it ends, otherwise, the corresponding to the anti-write option 24 is in a writable state, and then ends. . As shown in Figures 1, 2 and 5, the slot 3 can be used to insert an L card 32 (such as a compact flash memory card (c々mpact Fiash Card, CF C々ard) or multimedia). A memory card (Mulu Media Car (1, MMC), etc.) is provided to provide a memory space for storage to be utilized by the electronic device

Page 9 1273405 V. Inventions (6) Music, images or maps. Thereby, when the memory card 32 is inserted into the slot 30, and the user is on the electronic device 10 (such as a personal digital assistant (PDA) or a digital camera (Digital Camera), When the data is to be stored in the memory card 32, as shown in Figures 1, 2 and 4, the anti-writing software 2 is processed according to the following steps: (2 0 1 ) First, the judgment corresponds to the insertion. Is the anti-write option 2 of slot 3 已 selected? If yes, it means that the slot 3 is in the write-protected state, and the subsequent processing is performed according to the step (202); otherwise, the slot 3 is in the inaccessible state, and the processing is performed according to the step (2 〇 4); Controlling the electronic device 1 〇, stopping the transfer of data to the memory card 3 2 inserted in the slot 30; (2 0 3 ) generating an error signal indicating that the slot 3 is currently in the defense Write status; 嗣, ie end; ' (204) The slot 3 0 must be structurally designed here, not limited to _transport, example Bus, USB) Standard-2 has and the transmission shows), for example, two two After the electronic device is manufactured, the data is transferred to the memory stored in the delta memory card 3 2; 嗣j, and then ends. The special statement is that the memory card 32 is inserted into the slot 3, which is only one embodiment of the present invention. However, the actual implementation of the slot 30 can also be the electronic device. One of the == universal serial bus (Universal Serial transmission interface or the second recommended standard (Rec〇mmendeci / S2) transmission interface, etc., and the memory card 32 can also be another transmission wheel of the same specification External device (not included in the mobile hard disk (Mobile Hard Disk) or digital camera

Page 10 1273405 V. Description of the invention (7) and the like, when the two transmission ends are connected such that the external stalk is placed in the lightning device (4), the external device is in the electronic device. ^/ into the slot (such as · F slot) or its related information, can also be stored by the anti-write software 20 to the information block 22 of the anti-write table, so that the anti-write soft, 20 can determine the corresponding The anti-write in the anti-write block 23 of the information block 22 has been selected to make the external device in a write-protected state or a J-type. In a preferred embodiment of the electronic device, as shown in FIG. 1, the turtle includes: a control circuit 11' for connecting the electronic device, components, and circuits to enable the electronic device 10 to operate normally. The crystal ray 干 兀 Γ Γ Γ 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与 与The control circuit is connected to each other to provide early storage,

Space), the storage is arranged on the electronic connector (the M^y circuit 11 is connected, and the device 14 can be a voice (or sound) generated by the control circuit 11 for playing. The control, the text is now; as shown in Figure 1, the error signal can be played by the sounding element 14 in the form of electric 2, etc. 使用者Electronic farmer 1 user, can - stay - 1 2 or The sounding element 丨4, etc., ^ ^ ^ ^ hunting the 颂 颂 颂 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 停止 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 273 5. Description of the Invention (8) According to the above, it is only one of the best embodiments of the present invention, but the structural features of the present invention are not limited thereto, and any one skilled in the art may be within the field of the present invention. Any changes or modifications that are easily thought of can be covered in the scope of the patents in this case below.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an electronic device of the present invention; FIG. 2 is a schematic structural view of an anti-write comparison table of the present invention; FIG. 3 is a schematic view of the electronic device of the present invention An action flow chart of an anti-write software, FIG. 4 is another flow chart of the anti-write software of the present invention; FIG. 5 is an embodiment of the electronic device of the present invention. [Description of main component symbols] Electronic device...10 Control circuit"·1 1 φ Display unit...1 2 Storage unit...1 3 Sounding element...14 Anti-writing software"·20 Anti-writing comparison table "·21 Information field "·22 Anti-writing field...23 Anti-write option "·24 slot............30 slot............. .31 Memory Card...32

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Claims (1)

A method for preventing a memory card from being written, the method is an anti-writing software on an electronic device, and the anti-writing software can be processed according to the following steps when the electronic device is activated. a slot of at least one slot on the electronic device; the bit is set to be within the set of the anti-write reference table, and the: the position on the square map corresponding to the information block Another; : Anti-= There is an anti-write option in the writing booth for the user to %, such as Shen Zhen: The slot of the anti-write option is in the write-protected state. The gas method also includes the following steps; when the memory card is inserted in the sink slot, the = interrupted whether the anti-write option is selected; the electrical error in the state:: write 4 items have been selected, indicating that the slot system In the case of anti-write-like; ρgong1, the electronic device stops transmitting the data to the memory card to transfer the r memory card, and can still generate -4, such as "λ can be in a write-protected state. The method described in the first item of the scope, if the slot of the anti-write is straightforward, is writeable:; day; corresponding to the unselected anti-write selection includes: square stop " An electronic device that is written to connect the relevant components in the electronic device Page 14 1273405 VI. Applying for the patent scope and circuit, so that the electronic device can be connected to the storage unit, and the operation can be connected to the electronic device to provide at least a slot for the memory device. And the body and the data, the memory card, so that the control circuit can be connected to the ^ ^, and can be plugged in or write data to the memory card ^ stored in the 'save' The information, an anti-writing software, is installed in the storage unit, and provides a comparison table, and the anti-writing comparison table is provided with at least one information-protecting one of the information fields, wherein the information booth is used The slot of the spring slot is set, and the anti-write block has an anti-write option. After the option is selected, the slot corresponding to the anti-write option is anti-write. The electronic device of claim 5, wherein the electronic device further includes a sounding component, and the sounding component is used with the control circuit. The voice generated by the control circuit is played out. 6. The electronic device of claim 5, wherein the electronic device further comprises a display unit, the display system unit being coupled to the control circuit for displaying text and graphics generated by the control circuit. 7. The electronic device according to item 5 of the patent application, wherein the electric t-gu jiejie sentence--names are various> λ ^ ^ ύ γ JA- ^ it.!第15页