KR102632266B1 - Memory card reader with built-in erasing and optimization functions - Google Patents

Abstract

A memory card reader with built-in data deletion and optimization functions is disclosed. A memory card connector connecting a memory card; Button unit for selecting and executing data deletion and optimization algorithm; A status display unit that displays the selected algorithm and operation status; a processor unit that deletes or optimizes data on the memory card according to a selected algorithm; It constitutes a computer connection unit that connects the memory card to the computer through the processor unit. According to the memory card reader with the above-described internal data deletion and optimization function, the processor used in the present invention directly changes the data on the memory card according to the data deletion and optimization algorithm without connecting to a computer, more effectively, easily and quickly. It has the effect of achieving deletion and optimization of data stored on the memory card.

Description

Memory card reader with built-in data deletion function {MEMORY CARD READER WITH BUILT-IN ERASING AND OPTIMIZATION FUNCTIONS}

The present invention relates to a memory card reader with its own data deletion and optimization function. Specifically, in order to delete or optimize data stored in the memory card, a data deletion and optimization algorithm is added to the memory card reader firmware and a memory card reader case is provided. This relates to a memory card reader with built-in data deletion and optimization functions that can perform data deletion and optimization algorithm selection and execution commands on its own without a computer connection by adding a button.

Memory cards are widely used as storage devices for digital cameras. They have the same structure as solid-state drives (SSDs) for computers and have the same problems as general SSDs. When used for a long time, unused data accumulates in the memory. The downside is that the speed becomes increasingly slower. To solve this problem, computers periodically perform an optimization function called TRIM in the OS. However, in the case of memory cards used in digital cameras, the TRIM function could not be used because the format was different from that for computers. For this reason, shooting high-quality videos with digital cameras is sometimes interrupted. To solve this problem, a method has been used to connect the memory card to the computer through a memory card reader and use a program called Low Format to delete all data remaining on the memory card. However, this method had the disadvantage of transferring data to a memory card reader through a computer's USB connection, which took a very long time depending on the capacity of the memory card and shortened the lifespan of the memory card. Accordingly, there is a demand in the relevant technology field to develop technology for deleting and optimizing memory card data more easily and quickly.

Meanwhile, when the lifespan of a memory card falls below 50%, errors occur in the cells or the write speed suddenly decreases. However, it is not easy for users to estimate or check the remaining lifespan in advance.

Patent Document 1: KR 2019-7020336 A Patent Document 2: KR 2021-0120694 B1 Patent Document 3: KR 2012-0046951 B1 Patent Document 4: KR 2014-0056816 A Patent Document 5: CN 202354302 A Patent Document 6: US 08145891 B2 Patent Document 7: CN 1359071 A

The technical problem of the present invention to improve the above problems is to add a data deletion and optimization algorithm to the firmware of the memory card reader, and then add a button to the case of the memory card reader so that when data deletion or optimization of the memory card is needed, the computer The purpose is to provide a function to delete and optimize data on the memory card after the user directly operates the button and selects a deletion and optimization algorithm without connection to the device.

The memory card reader with built-in data deletion and optimization functions according to the first embodiment described above includes a memory card connection unit for connecting a memory card; Button unit for selecting and executing data deletion and optimization algorithms; A status display unit that displays the selected algorithm and operation status; a processor unit that deletes or optimizes data on the memory card according to a selected algorithm; It may be configured to include a computer connection unit that connects the memory card to the computer through the processor unit.

Here, the processor unit connects a memory card requiring data deletion or optimization to the memory card connection unit, and then selects a deletion and optimization algorithm through the button unit; A second step of displaying the selected algorithm and operating status through the button unit; It may be configured to include a third step of deleting and optimizing data stored in the memory card according to an algorithm selected through the button unit.

And it can be configured to select a deletion and optimization algorithm through the button unit.

The memory card reader with built-in data deletion and optimization functions according to the second embodiment described above includes a memory card interface module that interfaces with a memory card; an input module that receives a memory card format command to format the memory card or a memory card delete/optimize command to delete/optimize the memory card; a format execution module that executes formatting of the memory card according to a memory card format command received through the input module; It may be configured to include a data deletion/optimization module that deletes and optimizes data stored in the data storage area according to a memory card deletion/optimization command input through the input module.

Here, it may be configured to further include a host interface module that interfaces with the host terminal.

The format execution module may be configured to receive a memory card format command from the host terminal through an interface of the host interface module and execute formatting of the memory card according to the received memory card format command.

And the data deletion/optimization module receives a memory card deletion/optimization command from the host terminal through the interface of the host interface module, and deletes data stored in the data storage area according to the received memory card deletion/optimization command. and can be configured to optimize.

Meanwhile, if the memory card is configured with NVMe (non-volatile memory express) memory, it receives S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology) information related to data deletion/writing from the host terminal through the host interface module, and , a memory card information storage module in which received S.M.A.R.T information is stored; an automatic memory card remaining lifespan calculation module that calculates the remaining lifespan of the memory card using S.M.A.R.T. information stored in the memory card information storage module; It may be configured to further include a memory card replacement timing alarm module that generates a replacement timing alarm for the memory card using the remaining lifespan of the memory card automatically calculated by the automatic calculation module for remaining life of the memory card and outputs the alarm on the display. .

And it may be configured to further include a data deletion/optimization count module that counts the number of data deletion/optimizations according to data deletion/optimization of the data deletion/optimization module.

And receiving a memory card format command from the host terminal through the interface of the host interface module, and formatting the memory card according to the received memory card format command or the memory card format command input through the input module. , it may be configured to further include a format execution module that executes formatting by separately designating a data storage area, a memory card information storage area, and a memory card deletion/optimization storage area.

The memory card information storage module may be configured to receive and store memory card information from the host terminal through an interface of the host interface module.

Here, the memory card information automatic storage control module receives memory card information of the memory card from the host terminal through the interface of the host interface module, and automatically stores the received memory card information in the memory card information storage area. You can control it to do so.

And it may be configured to further include a display that displays memory card information and remaining lifespan of the memory card.

and a memory card automatic recognition module that automatically recognizes the memory card information stored in the memory card information storage area and the number of memory card deletions/optimizations through the interface of the memory card interface module. It may be configured to further include a memory card automatic identification module that automatically identifies the memory card by searching the memory card information automatically recognized by the memory card automatic recognition module from the memory card information stored in the memory card information storage module.

And the memory card remaining lifespan automatic calculation module adds the data deletion/optimization count counted in the data deletion/optimization count module to the deletion/optimization number automatically recognized by the memory card automatic recognition module to determine the final data deletion/optimization number. It may be configured to calculate and automatically calculate the remaining lifespan of the memory card according to the calculated final data deletion/optimization number with reference to the storage method stored in the memory card information storage module and output it through the display.

and a memory card erase/optimization count storage module that stores the final erase/optimization count calculated by the memory card remaining lifespan automatic calculation module; Memory card deletion/optimization count control to automatically store the final deletion/optimization count stored in the memory card deletion/optimization count storage module in the memory card deletion/optimization count area of the memory card through an interface with the memory card interface module. It may be configured to further include an automatic storage control module.

According to the memory card reader with the above-described internal data deletion and optimization function, the processor used in the present invention directly changes the data on the memory card according to the data deletion and optimization algorithm without connecting to a computer, more effectively, easily and quickly. It has the effect of achieving deletion and optimization of data stored on the memory card.

And by being configured to format and optimize the memory card on the memory card reader, it has the effect of conveniently and stably maintaining the working speed of the memory card writing operation.

In addition, if the memory card is configured with NVMe (non-volatile memory express) memory, the remaining lifespan is calculated and displayed by receiving S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology) information related to data deletion/writing from the host terminal. This has the effect of being able to accurately determine the timing of replacement of the memory card by checking the number of deletions/writes, etc. of the memory card in real time and the current lifespan.

In addition, the memory card reader is configured to cumulatively count the number of data deletion/optimization times on the memory card to determine the remaining lifespan of the memory card in real time, thereby predicting and replacing the memory card in advance and preventing memory card storage errors. There is an effect that can be done.

In particular, by pre-specifying the purpose and storage method of the memory card and storing it on the memory card, it is possible to accurately determine the remaining lifespan of the memory card.

1 is a perspective view of a memory card reader with built-in data deletion and optimization functions according to an embodiment of the present invention.
Figure 2 is a block diagram of a memory card reader with built-in data deletion and optimization functions according to the first embodiment of the present invention.
Figure 3 is a flowchart showing a method of operating a memory card reader with built-in data deletion and optimization functions according to an embodiment of the present invention.
Figure 4 is a block diagram of a memory card reader equipped with a data optimization function and a lifespan prediction function to which a lifespan display function is added according to a second embodiment of the present invention.
Figure 5 is a block diagram of a memory card according to an embodiment of the present invention.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and detailed descriptions will be given for carrying out the invention. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components.

Terms such as first, second, A, and B may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term and/or includes any of a plurality of related stated items or a combination of a plurality of related stated items.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

Memory cards applied to the present invention include SD, micro SD, CF, CFexpress, and Includes algorithms such as -88, Secure, Quick, and Random Erase.

Figure 1 is a perspective view of a memory card reader with built-in data deletion and optimization functions according to an embodiment of the present invention.

Referring to Figure 1, in the first step, the memory card that requires data deletion and optimization is inserted into a memory card reader equipped with its own data deletion and optimization functions.

In the second step, the user clicks the button mounted on the memory card reader equipped with its own data deletion and optimization function to select the algorithm required for data deletion or optimization, then presses and holds the button again or presses a separate execution button to execute the selected algorithm. Run it.

Here, the optimization algorithm may be an existing algorithm, for example, the U.S. algorithm. DoD 5220.23-M(E), U.S. DoD 5220.23-M(ECE), German BCI/VSITR, Peter Gutmann, Bruce Schneier, Russian GOST R 50739-95, British HMG ISS(Baseline), British HMG ISS(Enhanced), NAVSO P-5239-26(MFM)/ (RLL), Canadian RCMP TSSIT OPS-Ⅱ, US Army AR380-19, NATO Data Destruction Standard, MS Cipher, NSA erasure algorithm, Pfitzner, NCSC-TG-025, FSSI-5020, ISM 6.2.92, NZSIT 402, etc. It can be used.

Figure 2 is a block diagram of a memory card reader with built-in data deletion and optimization functions according to the first embodiment of the present invention.

Referring to Figure 2, the present invention includes a memory card connection unit 110 that electrically connects the memory card and the processor unit 130, and a button unit that selects a deletion and optimization algorithm and transmits an execution command to the processor unit 130. (120), a status display unit 140 that displays the algorithm and operating status selected by the button unit 120, and data stored in the memory card connected to the memory card connection unit 110 for the algorithm selected by the button unit 120. It consists of a processor unit 130 that deletes or optimizes and a computer connection unit 150 that connects the memory card and the computer through the processor unit 130.

The memory card connection unit 110 electrically connects the memory card and the processor unit 130.

The button unit 120 is electrically connected to the processor unit 130 so that the processor unit 130 can detect whether the button is pressed. The button unit 120 may be configured with a plurality of buttons to select buttons for the processor unit 130.

The status display unit 140 is electrically connected to the processor unit 130 and displays a signal output from the processor unit 130 on an LED or LCD screen.

The computer connection unit 150 is electrically connected to the processor unit 130.

The processor unit 130 periodically searches the memory card connection unit 110 and the button unit 120 to check whether the memory card is connected and whether the button on the button unit 120 has been pressed, and performs an algorithm selected by the user according to a set rule. When the operation status is output to the status display unit 140 and an execution command is detected through the button unit 120, the contents of the memory card mounted in the memory card connection unit 110 are changed using the selected algorithm. In addition, the processor unit 130 periodically searches the computer connection unit 150 and connects the memory card mounted on the memory card connection unit 110 with the computer according to commands from the connected computer, allowing the computer to read and write the memory card directly. Process it.

Figure 3 is a flowchart showing a method of operating a memory card reader with built-in data deletion and optimization functions according to an embodiment of the present invention.

Referring to Figures 2 and 3, the processor unit 130 of the memory card reader 100, which has its own data deletion and optimization function, periodically connects the memory card connection unit 110, the button unit 120, and the computer connection unit 150. Search to check if the memory card is connected, check if the button has been pressed, check if it is connected to the computer, complete the task according to the set rules, and display the status on the status display unit 140. (S210) .

When the pressed state of the button unit 120 corresponds to a data deletion and optimization execution command, the processor unit 130 changes the data in the memory card according to a predetermined algorithm (S240).

The processor unit 130 can connect or disconnect the computer and the memory card according to commands from the computer connected to the computer connection unit 150 (S270).

Figure 4 is a block diagram of a memory card reader equipped with a data optimization function and a lifespan prediction function to which a lifespan display function is added according to a second embodiment of the present invention.

First, referring to FIG. 4 , the memory card reader 200 may be configured to perform interfacing to access the memory card 10.

Additionally, the memory card 10 is attachable to and detachable from the digital camera 30 and may be configured to include a non-volatile memory element.

And the host terminal 20 may be configured to access the memory card 10 through the memory card reader 200. For example, the host terminal 20 may be a laptop computer, a PC, etc.

Hereinafter, the detailed configuration of the memory card reader 200 will be described.

First, the memory card reader 200 includes a host interface module 201, a memory card interface module 202, a display 203, an input module 204, a format execution module 205, a memory card information storage module 206, Memory card information automatic storage control module (207), data deletion/optimization module (208), data deletion/optimization count module (209), memory card automatic recognition module (210), memory card automatic identification module (211), memory card It can be configured to include a remaining life automatic calculation module 212, a memory card deletion/optimization number storage module 213, a memory card deletion/optimization number automatic storage control module 214, and a memory card replacement timing alarm module 215. there is.

Hereinafter, the detailed configuration will be described.

The host interface module 201 may be configured to interface with the host terminal 20.

The memory card interface module 202 may be configured to interface with the memory card 10.

The display 203 may be configured to display memory card information and remaining life of the memory card 10.

Here, the memory card information may be configured to include the identifier, purpose, and storage method of the memory card 10. The identifier is a component used to identify the memory card 10 and may be an ID, name, identification number, etc. And the purpose is whether it is for general data authoring or for use with the digital camera 30. As for the storage method, the memory card 10 may be configured as one of a single level cell (SLC), a multi-level cell (MLC), and a triple level cell (TLC).

This memory card information can be specified and set by the user.

The input module 204 may be configured to receive a memory card format command to format the memory card 10 or a memory card delete/optimize command to delete/optimize the memory card 10. The input module 204 may be configured as a separate button on the memory card reader 200.

The format execution module 205 may be configured to receive a memory card format command from the host terminal 20 through the interface of the host interface module 201.

And the format execution module 205 is configured to format the memory card 10 according to the memory card format command received through the host interface module 201 or the memory card format command received through the input module 204. It can be.

At this time, the format execution module 205 stores the memory card 10 in a memory card information storage area 12 for storing memory card information in addition to the data storage area 11 for general data storage, and the number of memory card deletion/optimization times. The memory card may be configured to perform formatting by separately designating the memory card deletion/optimization number storage area 13.

The memory card information storage module 206 may be configured to receive and store memory card information from the host terminal 20 through the interface of the host interface module 201. Memory card information for a plurality of memory cards 10 may be stored in the memory card information storage module 206.

The memory card information automatic storage control module 207 receives memory card information of the memory card 10 from the host terminal 20 through the interface of the host interface module 201, and stores the received memory card information as the memory card information. It can be controlled to automatically save in area 12.

The data deletion/optimization module 208 may be configured to receive a memory card deletion/optimization command from the host terminal 20 through the interface of the host interface module 201.

And the data deletion/optimization module 208 deletes and optimizes the data stored in the data storage area 11 according to the received memory card deletion/optimization command or the memory card deletion/optimization command input through the input module 204. It can be configured to do so.

At this time, optimization may be performed according to various optimization algorithms, and may be selected and used among several optimization algorithms.

For example, according to the so-called 3Pass method of the U.S. Department of Defense (DoD), data is overwritten three or more times when deleting it. The entire memory element 10 is configured to be written as 0, written again as 1, and then written again as a random character. Users can select and use the most appropriate deletion/optimization algorithm according to their needs.

The data deletion/optimization count module 209 may be configured to count the number of times of data deletion/optimization according to the data deletion/optimization of the data deletion/optimization module 208.

The memory card automatic recognition module 210 deletes the memory card information stored in the memory card information storage area 12 and the memory card stored in the memory card deletion/optimization count storage area 13 through the interface of the memory card interface module 202. /Can be configured to automatically recognize the number of optimizations. Here, memory card information and memory card deletion/optimization times may be stored in advance in the corresponding area by the memory card reader 200.

The memory card automatic identification module 211 automatically identifies the memory card 10 by searching the memory card information automatically recognized by the memory card automatic recognition module 210 from the memory card information stored in the memory card information storage module 206. It can be configured. The memory card automatic identification module 211 can identify the corresponding memory card 10 using an identifier among the memory card information.

The memory card remaining lifespan automatic calculation module 212 adds the data deletion/optimization number counted in the data deletion/optimization count module 209 to the deletion/optimization number automatically recognized by the memory card automatic recognition module 210, and adds the final data Can be configured to count the number of deletions/optimizations.

Here, when the memory card 10 is configured as NVMe (non-volatile memory express) memory, the memory card remaining lifespan automatic calculation module 212 deletes data from the existing S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology) device. , It may be configured to extract write-related information and determine the number of times data has been deleted/optimized on the memory card.

Additionally, the memory card remaining lifespan automatic calculation module 212 automatically calculates the remaining lifespan of the memory card 10 according to the final data deletion/optimization count by referring to the storage method stored in the memory card information storage module 206 and displays it 203. ) can be configured to output through.

Here, if the storage method of the memory card 10 is SLC, the average number of deletions is possible up to 100,000, in the case of MLC, the average number of deletions is possible up to 10,000, and in the case of TLC, the average number of deletions is possible up to 10,000 times. The number of possible times is up to 1,000.

Accordingly, the remaining lifespan can be automatically calculated by subtracting the final data deletion/optimization number from the average number of possible deletions according to the storage method of the memory card 10.

The memory card deletion/optimization count storage module 213 may be configured to store the final deletion/optimization count calculated by the memory card remaining lifespan automatic calculation module 212 .

The memory card deletion/automation count automatic storage control module 214 records the final deletion/optimization count stored in the memory card deletion/optimization count storage module 213 to the memory card 10 through an interface with the memory card interface module 202. You can control automatic saving in the memory card deletion/optimization count area (13).

The memory card replacement time alarm module 215 generates a replacement time alarm for the memory card 10 using the remaining lifespan of the memory card 10 automatically calculated by the automatic calculation module 212 for the remaining life of the memory card and displays it on the display 203. ) or can be configured to output through a speaker (not shown). For example, the memory card replacement time alarm module 215 may be preset to generate a replacement time alarm when the remaining lifespan is 50% or less. When the remaining life is below 50%, errors occur in several cells of the memory card 10 and the write speed slows down exponentially. Therefore, it is desirable to generate a replacement alarm when the remaining life is below 50%.

Also, if the memory card 10 has not been replaced and the remaining life is 0, the memory card lock setting alarm module (not shown) generates a lock setting alarm and sends the lock setting alarm to the memory card 10 through the memory card interface module 202. Can be configured to transmit.

Figure 5 is a block diagram of a memory card according to an embodiment of the present invention.

Referring to Figure 5, the memory card 10 may be configured to include a data storage area 11, a memory card information storage area 12, and a memory card deletion/optimization count storage area 13.

Hereinafter, the detailed configuration will be described.

The data storage area 11 is an area where data is stored.

The memory card information storage area 12 is an area where memory card information is stored.

The memory card deletion/optimization count storage area 13 is an area where the memory card deletion/optimization count is stored.

Meanwhile, the memory card lock setting unit (not shown) of the memory card 10 receives a lock setting alarm through the memory card interface module 202, and when the lock setting alarm is received, access to the data storage area 11 is disabled. It may be configured to perform lock switching. That is, when the remaining life is 0, the digital camera 30 cannot access the data storage area 11 of the memory card 10, and an error message such as a memory device 10 recognition error may be output. Accordingly, the user can see that a memory element 10 that can no longer be used is installed, and can immediately replace it and use it.

Although the description has been made with reference to the above examples, those skilled in the art can understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. There will be.

100: Memory card reader
110: Memory card connection part
120: Button portion
130: Processor unit
140: Status display unit
150: Computer connection part
160: Display unit
200: Memory card reader
201: Host interface module
202: Memory card interface module
203: display
204: input module
205: Format execution module
206: Memory card information storage module
207: Memory card information automatic storage control module
208: Data erasure/optimization module
209: Data Delete/Optimization Count Module
210: Memory card automatic recognition module
211: Memory card automatic identification module
212: Memory card remaining life automatic calculation module
213: Memory card deletion/optimization count storage module
214: Memory card deletion/optimization count automatic storage control module
215: Memory card replacement time alarm module
10: Memory card
11: Data storage area
12: Memory card information storage area
13: Memory card deletion/optimization count storage area
20: host terminal

Claims (13)

delete delete delete A memory card (10) including a data storage area (11) and a memory card information storage area (12);
a memory card connection unit 110 including a memory card interface module 202 that is connected to the memory card 10 and performs an interface;
a button unit 120 for selecting and executing one of a plurality of algorithms for executing data deletion and optimization commands of the memory card 10;
An input module 204 that receives the delete and optimize command input by the button unit 120, and data of the memory card 10 according to the delete and optimize command of the memory card input through the input module 204. a processor unit 130 including a format execution module 205 including a plurality of algorithms for deleting data in the storage area 11 and the memory card information storage area 12;
A memory card reader with a built-in data deletion function, comprising a status display unit (140) that displays the algorithm selected by the button unit (120) and an operating state.
According to paragraph 4,
The plurality of algorithms include US DoD 5220.23-M(E), US DoD 5220.23-M(ECE), German BCI/VSITR, Peter Gutmann, Bruce Schneier, Russian GOST R 50739-95, British HMG ISS(Baseline), British HMG ISS(Enhanced), NAVSO P-5239-26(MFM)/(RLL), Canadian RCMP TSSIT OPS-Ⅱ, US Army AR380-19, NATO Data Destruction Standard, MS Cipher, NSA erasure algorithm, Pfitzner, NCSC-TG- A memory card reader with a built-in data deletion function, consisting of multiple selections from 025, FSSI-5020, ISM 6.2.92, and NZSIT 402.
According to clause 5,
The processor unit 130 further includes a host interface module 201 that interfaces with a host terminal 20 connected to a memory card reader,
The data deletion module 208 receives a memory card data deletion and optimization command from the host terminal 20 through the interface of the host interface module 201, and stores the memory card data according to the received memory card data deletion and optimization command. A memory card reader with a built-in data deletion function that deletes remaining data in the data storage area (11) and the information storage area (12).
According to clause 6,
The storage area of the memory card 10 further includes a memory card deletion count storage area 13,
a data deletion count module 209 that counts the number of data deletions according to data deletion in the data deletion module 208 and stores them in the memory card deletion count storage area 13;
It is configured to receive and store memory card information from the host terminal 20 through the interface of the host interface module 201, and when the memory card is configured as NVMe (non-volatile memory express) memory, the host interface A memory card information storage module 206 that receives data deletion SMART (Self-Monitoring, Analysis and Reporting Technology) information from the host terminal through a module and stores the received SMART information;
A memory that uses the SMART information stored in the memory card information storage module 206 to calculate the remaining lifespan by subtracting the number of data deletions confirmed by the data deletion count module 209 from the number of deletions possible according to the memory card storage method. An automatic calculation module 212 for remaining card life,
Built-in self-data deletion function, including a memory card replacement time alarm module 215 that generates and outputs a memory card replacement time alarm using the remaining life calculated by the memory card remaining life automatic calculation module 212. Memory card reader.

In clause 7,
The memory card information storage module 206,
Configured to receive and store memory card information from the host terminal 20 through the interface 201 of the host interface module,
Receives memory card information of the memory card 10 from the host terminal 20 through the interface of the host interface module 201, and automatically stores the received memory card information in the memory card information storage area 12. A memory card reader with a built-in self-data deletion function, including a control module 207 for automatic storage of memory card information.

According to clause 8,
Automatic memory card recognition that automatically recognizes the memory card information stored in the memory card information storage area 12 and the number of memory card deletion times stored in the storage area 13 through the interface of the memory card interface module 201. module 210;
A memory card automatic identification module 211 that automatically identifies the memory card by searching the memory card information automatically recognized by the memory card automatic recognition module 210 from the memory card information stored in the memory card information storage module 206. Memory card reader with built-in data deletion function, further including
According to clause 9,
a memory card deletion count storage module 213 that stores the final deletion/optimization count calculated by the memory card remaining life automatic calculation module 212;
Memory card deletion control to automatically store the final deletion count stored in the memory card deletion count storage module 213 in the memory card deletion count area 13 of the memory card through an interface with the memory card interface module 201. A memory card reader with a built-in self-data deletion function, further configured to include a count automatic save control module (214).
In clause 7,
The input module 204 is configured to receive a format command for formatting the memory card,
It includes a format execution module 205 that executes formatting of the memory card according to the memory card format command received through the input module 204,
The format execution module 205 is configured to separately designate the data storage area 11, the memory card information storage area 12, and the memory card deletion storage area 13 of the memory card to execute the format, and perform self-data deletion. Memory card reader with built-in functions.
In clause 7,
A self-data deletion function, including a display unit that generates and outputs a memory card replacement time alarm in the memory card replacement time alarm module 215 using the remaining lifespan calculated in the memory card remaining life automatic calculation module 212. Built-in memory card reader.


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