KR102301761B1 - Data recovery apparatus for USB memory - Google Patents

Abstract

The present invention relates to a data recovery apparatus for a USB memory, and more specifically, to a data recovery apparatus for a USB memory, which uses a USB memory in a type identical to that of an unrecognized USB memory to recover data stored in the damaged memory. In accordance with the present invention, the data recovery apparatus for a USB memory comprises: a first USB memory unit having a memory whose data need to be recovered because the memory where the data are stored is unrecognized; a second USB memory unit separately arranged to control the first USB memory unit in order to recover the data of the memory in the first USB memory unit; and a USB memory recovery unit for recovering the data stored in the memory of the first USB memory unit in execution of a recovery program while the second USB memory unit controls the first USB memory unit.

Description

Data recovery apparatus for USB memory

The present invention relates to an apparatus for recovering data from a USB memory, and more particularly, to an apparatus for recovering data stored in a damaged memory using a USB memory of the same type as an unrecognizable USB memory.

In general, a USB type USB memory loses data stored therein due to damage to the memory controller or damage to the NAND memory. At this time, techniques for recovering the USB memory by various methods such as replacing the NAND memory are known in the prior art.

However, in the case of an all-in-one USB memory produced recently, since most of the USB memories use the LDPC (Low Density Parity Check) method, there is a problem that the existing recovery equipment cannot recover it.

Republic of Korea Patent Publication No. 10-0783158 (Title of the invention: Capacity expansion device for UBS memory device and method therefor) Republic of Korea Patent Publication No. 10-1871427 (Title of the invention: USB memory device with data protection and recovery function)

Accordingly, the present invention was created to solve the above-described problems, such as when data stored in the memory cannot be read due to damage to the controller or data stored in the memory cannot be read due to damage to the memory. An object of the present invention is to provide an invention capable of recovering data even from various damages.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

The above-described object of the present invention is to control the first USB memory unit to recover data stored in the memory of the first USB memory unit and the first USB memory unit requiring recovery of data stored in the memory according to the recognition failure of the memory for storing data. a second USB memory unit separately provided to do so, and a USB memory recovery unit for recovering data stored in the memory of the first USB memory unit by controlling the second USB memory unit according to the driving of the recovery program. This can be achieved by providing a data recovery device of a USB memory.

In addition, the controller of the second USB memory unit is provided with the same controller type as the controller type of the first USB memory unit, so that the controller of the second USB memory unit controls the memory of the first USB memory unit so that data stored in the memory of the first USB memory unit is stored. is restored

In addition, the first USB memory unit is disposed on the first PCB board part, and includes a first memory part that is not recognized while storing data that the user wants to recover, and a first controller part disposed on the first PCB board part,

The second USB memory unit includes a second memory unit disposed on the second PCB board part, and a second controller part disposed on the second PCB board part.

In addition, by removing the signal line connected to the first controller unit of the first USB memory unit, the first controller unit of the first USB memory unit cannot control the first memory unit of the first USB memory unit, and the second memory unit connected to the second memory unit of the second USB memory unit cannot be controlled. By removing the signal line, the second controller unit of the second USB memory unit cannot control the second memory unit of the second USB memory unit.

In addition, the second USB memory unit further includes a data recovery signal line connector connecting the second controller unit and the first memory unit of the first USB memory unit to each other, and according to the connection connection of the data recovery signal line connecting unit, the second USB memory unit is The controller unit controls the first memory unit of the first USB memory unit.

In addition, in the USB memory recovery unit, the memory data recovery program is driven, the recovery program driving unit for transmitting the recovery control signal to the second controller unit of the second USB memory unit, and the first memory unit of the first USB memory unit damaged according to the recovery control signal It includes a DUMP file generation unit that receives the stored recovery data and generates a DUMP file of the recovery data, and a data recovery unit that recovers data that a recoverer can recognize based on the DUMP file generated by the DUMP file generation unit.

In addition, the USB memory recovery unit includes a PIN test unit that transmits a pin configuration confirmation control signal for confirming the pin configuration of the first memory unit and the first controller unit of the first USB memory unit.

In addition, according to the pin configuration of the first memory unit and the first controller unit of the first USB memory unit confirmed under the control of the PIN test unit, the signal line connected to the first controller unit of the first USB memory unit is removed, and the second USB memory unit is removed. 2 Remove the signal line connected to the memory unit.

In addition, the first USB memory part is disposed on the first PCB board part, and further includes a first test pin part connected to the signal lines of the first memory part and the first controller part for testing, respectively, and the second USB memory part is the second USB memory part. It is disposed on the PCB board and further includes a second test pin part connected to the signal lines of the second memory part and the second controller part for testing, respectively, the first test pin part and the second USB memory part of the first USB memory part It further includes a data recovery signal line connector connecting the two test pin parts to each other, and the second controller part of the second USB memory part controls the first memory part of the first USB memory part according to the connection connection of the data recovery signal line connector part.

According to the present invention as described above, data can be recovered even by various damage to the USB memory, such as when data stored in the memory cannot be read due to damage to the controller or data stored in the memory cannot be read due to damage to the memory. It works.

The following drawings attached to the present specification illustrate a preferred embodiment of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in those drawings It should not be construed as being limited.
1 is a diagram schematically showing the configuration of a damaged USB memory unit according to an embodiment of the present invention;
2 is a view showing that the test pin unit is connected to each signal line of the memory unit and the controller unit according to an embodiment of the present invention;
3 is a diagram schematically illustrating the configuration of a new USB memory unit of the same type as a damaged USB memory unit for recovering a damaged USB memory unit according to an embodiment of the present invention;
4 is a diagram illustrating the transmission of the pin configuration check driving control signal to the damaged USB memory unit in the USB memory recovery unit according to an embodiment of the present invention;
5 is a diagram illustrating the removal of the signal line connected to the controller of the damaged USB memory unit according to an embodiment of the present invention, and the signal line connected to the memory unit of the new USB memory unit is removed;
6 is a diagram illustrating a connection connection between a test pin unit of a damaged USB memory unit and a test pin unit of a new USB memory unit according to an embodiment of the present invention;
7 is a diagram illustrating a connection connection between a memory unit of a damaged USB memory unit and a controller unit of a new USB memory unit according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. In addition, one embodiment described below does not unreasonably limit the content of the present invention described in the claims, and it cannot be said that the entire configuration described in the present embodiment is essential as a solution for the present invention. In addition, descriptions of the prior art and matters obvious to those skilled in the art may be omitted, and the description of the omitted components (methods) and functions may be sufficiently referenced within the scope not departing from the technical spirit of the present invention.

A USB memory data recovery device according to an embodiment of the present invention is a device for recovering an unrecognized USB memory using a new USB memory of the same type. Hereinafter, an apparatus for recovering data from a USB memory according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Although the USB memory unit described in the present invention refers to an integrated USB memory, it can be restored including a general USB memory. All-in-one USB memory is also called Chip On Board (COP) type USB memory (COB type USB memory), and is molded after connecting a die (bare chip) to an electronic circuit board (Printed Circuit Board) by wire bonding. It means USB memory. Also, the integrated USB memory may refer to a memory to which a Low Density Parity Check (LDPC) method is applied.

The first USB memory unit 100 as shown in FIG. 1 is a memory that does not recognize USB. That is, data to be restored by the user is stored in the first USB memory unit 100 . The first USB memory unit 100 includes a first memory unit 110 , a first controller unit 120 , a first test pin unit 130 , a first oscillator unit 140 , and a first passive element unit 150 . , the first USB connector unit 160 may be included. At this time, the first test pin unit 130 may or may not be present depending on the type of the USB memory. Each of the above-described parts 110 , 120 , 130 , 140 , 150 , 160 is disposed on the first PCB board part 101 and connected to each other by signal lines (various bus lines, control signal lines, and power lines).

The first memory unit 110 stores data to be restored by the user, and generally refers to a NAND Flash type memory, but the type of memory is not necessarily limited. The first controller unit 120 transmits a control signal to the first memory unit 110 to store data in the memory (Writing) or to read data from the memory (Reading). Data to be stored in the memory is transmitted from the USB memory recovery unit 300 connected to the first USB connector unit 160 (which may be a computer in general), and the data stored in the memory is transferred to the first USB connector unit 160 through the first USB connector unit 160 . through the USB memory recovery unit 300 . Accordingly, the first USB connector unit 160 performs an interface function between the first USB memory unit 100 and an external device.

The first oscillator unit 140 provides a clock necessary for the first USB memory unit 100 , and the first passive element unit 150 is a passive element required for the first USB memory unit 100 , such as a resistor, an inductor, or a capacitor. provides

As shown in FIG. 2 , the first test pin unit 130 may or may not be present depending on the type of USB memory (each USB memory manufacturer). The first test pin unit 130 separates the necessary signal lines (eg, address/data signal lines, control signal lines, etc.) of the first memory unit 110 and the first controller unit 120 for testing by the USB manufacturer on the first PCB board. It is provided to the part 101 . Of course, other signal lines may be connected to the first test pin unit 130 for testing the USB memory.

As shown in FIG. 3 , the second USB memory unit 200 according to an embodiment of the present invention is the same type of USB memory as the first USB memory unit 100 . In this case, the USB memory of the same type means that at least the type of the controller is the same, or the type of the controller and the memory are the same. Therefore, the description of the second USB memory unit 200 will be replaced with the description of the first USB memory unit 100 described above. However, the first USB memory unit 100 is a memory in which the USB memory is not recognized due to some cause such as damage to the controller or damage to the memory, that is, a memory that the user wants to recover, and the second USB memory unit 200 is a well-recognized new memory. Therefore, in the present invention, a damaged USB memory and a new USB memory of the same type are required.

In order to recover data stored in the first USB memory unit 100 that is not recognized as a memory, the pin configuration of the first USB memory unit 100 should be identified first. That is, as shown in FIG. 4 , in order to determine the pin configuration of the first memory unit 110 and the pin configuration of the first controller unit 120 , the PIN test unit 340 of the USB memory recovery unit 300 may transmits the control signal or data signal of the first USB connector unit 160 , and transmits this data to the first USB connector unit 160 again to the first memory unit 110 and the first controller unit 120 . So you can figure out the pin configuration. That is, the diode resistance values of various types of memories together with the waveforms output from each pin of the first memory unit 110 and the first controller unit 120 that interlock and react according to the transmitted arbitrary control signal or data signal. It is possible to grasp the configuration of each pin by analyzing it using the accumulated database. Since the first USB memory unit 100 and the second USB memory unit 200 are of the same type, by testing the pin configuration of one USB memory, the pin configuration of the other USB memory can be known. Therefore, the pin configuration of the second USB memory unit 200 may be tested first, and the principle is the same as described above.

When the confirmation of the pin configuration of each USB memory 100 and 200 is completed, the memory units 110 and 210 and the controller units 120 and 220 of each USB memory 100 and 200 are connected to each other on their own PCB board and connected to other devices (an oscillator as an example). Check the signal line connection relationship with the part or passive element part, etc.). Of course, it may be necessary to sequentially decapsulate the surface of the USB memory in order to understand the signal line connection relationship.

After the signal line connection relationship between the memory units 110 and 210 and the controller units 120 and 220 of each USB memory 100 and 200 is identified, the related signal lines are removed as shown in FIG. 5 . That is, as shown in FIG. 5 , the signal line 102a connected to the first controller unit 120 of the first USB memory unit 100 is removed. This prevents the first memory unit 110 from being controlled by the first controller unit 120 . Also, the signal line 202a connected to the second memory unit 210 of the second USB memory unit 200 is removed. This prevents the second memory unit 210 from being controlled by the second controller unit 220 .

The signal line 102a connected to the first controller unit 120 of the first USB memory unit 100 is removed, and the signal line connected to the second memory unit 210 of the second USB memory unit 200 is removed. After 202a) is removed, as shown in FIGS. 6 and 7 , the first memory unit 110 of the first USB memory unit 100 and the second controller unit 220 of the second USB memory unit 200 are removed. to be directly or indirectly connected to each other.

First, as a first embodiment, this will be described in detail with reference to FIG. 6 . As shown in FIG. 6 , the first test pin unit 130 and the second USB memory unit 200 of the first USB memory unit 100 are and a first data recovery signal line connecting unit connecting the second test pin unit 260 to each other. As described above with reference to FIG. 2 , the first test pin unit 130 and the second test pin unit 230 have signal lines for testing connected from the memory and the controller, respectively. Therefore, when the first data recovery signal line connection unit connects the first test pin unit 130 and the second test pin unit 230 to each other, the second controller unit 220 of the second USB memory unit 200 is connected to the first USB memory unit. The first memory unit 110 of ( 100 ) may be controlled. The first data recovery signal line connection unit connects each pin of the first test pin unit 130 and the second test pin unit 230 by pin-to-pin soldering with a jump wire or a wire so that a connection connection is made.

As a second embodiment, referring to FIG. 7 , FIG. 7 shows that the first and second test pin units 130 and 230 are not present. Since the first and second test pin units 130 and 230 are not present, the second data recovery signal line connection unit directly connects the first memory unit 110 and the second controller unit 220 with a pin-to-pin pin to connect the second USB memory unit 200 . of the second controller 220 to control the first memory unit 110 of the first USB memory unit 100 . The second data recovery signal line connection unit connects each pin of the first memory unit 110 and the second controller unit 220 by pin-to-pin soldering with a jump line or a wire so that a connection connection is made.

Meanwhile, the USB memory recovery unit 300 illustrated in FIGS. 6 and 7 may be implemented as a device in which an operating system program is operated, such as a computer or a notebook computer. The USB memory recovery unit 300 includes a recovery program driving unit 310 , a DUMP file generation unit 320 , a data recovery unit 330 , and a PIN test unit 340 . At this time, the PIN test unit 340 is as described with reference to FIG. 4 .

The recovery program driver 310 drives and controls a separate program capable of recovering data stored in a damaged USB memory. Accordingly, the recovery program driver 310 may include an operating system and a recovery program. The recovery program driver 310 transmits a recovery control signal to the second controller 220 of the second USB memory 200 when data is recovered. When the recovery control signal is transmitted, the second controller 220 of the second USB memory unit 200 controls the first memory unit 110 of the first USB memory unit 100 to The stored data is read and transmitted to the USB memory recovery unit 300 .

The DUMP file generation unit 320 receives the data required for recovery (hereinafter referred to as recovery data) transmitted from the first memory unit 110 and generates a DUMP file of the recovery data. DUMP files consist of Asaki code only. The DUMP file is self-evident to those skilled in the art, and a description thereof will be omitted.

The data recovery unit 330 restores data that the recoverer can recognize by using the recovery model stored in the database in advance based on the DUMP file of the Asaki code generated by the DUMP file generator and the chip ID information of the damaged memory. That is, it is finally restored to data that the restorer can recognize, such as a video file, an image file, or a word processor document file. Of course, the data recovery unit 330 may be a part of the recovery program being operated by the recovery program driver 310 , but has been described separately for convenience of explanation.

Data can be recovered even by various types of damage to the USB memory, such as when the data stored in the memory cannot be read due to the controller being damaged or the data stored in the memory cannot be read due to the damage to the memory.

In the description of the present invention, the description may be omitted for matters obvious to those skilled in the art and those skilled in the art, and the description of these omitted components (methods) and functions will be sufficiently referenced within the scope not departing from the technical spirit of the present invention. will be able In addition, the above-described components of the present invention have been described for convenience of description of the present invention, and components not described herein may be added within a range that does not depart from the technical spirit of the present invention.

The description of the configuration and function of each part has been described separately for convenience of description, and if necessary, any configuration and function may be implemented by being integrated into other components, or may be implemented in more subdivision.

As mentioned above, although it has been described with reference to one embodiment of the present invention, the present invention is not limited thereto, and various modifications and applications are possible. That is, those skilled in the art will readily understand that many modifications are possible without departing from the gist of the present invention. In addition, if it is determined that the detailed description of the known functions related to the present invention and its configuration or the coupling relationship for each configuration of the present invention may unnecessarily obscure the gist of the present invention, it should be noted that the detailed description is omitted. something to do.

100: first USB memory unit
101: first PCT substrate unit
102: first signal line
102a: first controller bus disconnection
110: first memory unit
120: first controller unit
130: first tester pin unit
140: first oscillator unit
150: first passive element unit
160: first USB connector unit
200: second USB memory unit
201: second PCT substrate unit
202: second signal line
202a: second memory bus disconnection
210: second memory unit
220: second controller unit
230: second tester pin unit
240: second oscillator unit
250: second passive element unit
260: second USB connector unit
300: USB memory recovery unit
310: recovery program driving unit
320: DUMP file generation unit
330: data recovery unit (video, photo files, etc. are finally recovered)
340: PIN tester unit

Claims (9)

A first USB memory unit that requires recovery of the data stored in the memory according to the recognition failure of the memory for storing data;
a second USB memory unit separately provided to control the first USB memory unit to recover data in the memory of the first USB memory unit;
and a USB memory recovery unit configured to recover data stored in the memory of the first USB memory unit by controlling the first USB memory unit by the second USB memory unit according to the driving of the recovery program,
The controller of the second USB memory unit is provided with the same controller type as the controller type of the first USB memory unit, so that the controller of the second USB memory unit controls the memory of the first USB memory unit and is stored in the memory of the first USB memory unit. data is recovered,
The first USB memory unit is disposed on a first PCB board part, and includes a first memory part that is not recognized while storing data that a user wants to recover, and a first controller part disposed on the first PCB board part, The second USB memory unit includes a second memory unit disposed on a second PCB board part, and a second controller part disposed on the second PCB board part,
By removing the signal line connected to the first controller unit of the first USB memory unit, the first controller unit of the first USB memory unit cannot control the first memory unit of the first USB memory unit, and the second memory unit of the second USB memory unit cannot be controlled. By removing the signal line connected to the USB memory data recovery apparatus, characterized in that the second controller unit of the second USB memory unit does not control the second memory unit of the second USB memory unit.
delete delete delete The method of claim 1,
Further comprising a data recovery signal line connection unit connecting the second controller unit of the second USB memory unit and the first memory unit of the first USB memory unit to each other,
The data recovery apparatus of the USB memory, characterized in that the second controller unit of the second USB memory unit controls the first memory unit of the first USB memory unit according to the connection connection of the data recovery signal line connection unit.
The method of claim 1,
The USB memory recovery unit,
A recovery program driving unit for driving a memory data recovery program and transmitting a recovery control signal to a second controller unit of the second USB memory unit;
a DUMP file generation unit that receives the recovery data stored in the first memory unit of the damaged first USB memory unit according to the recovery control signal and generates a DUMP file of the recovery data;
and a data recovery unit for recovering data that can be recognized by a recoverer based on the DUMP file generated by the DUMP file generator.
The method of claim 1,
The USB memory recovery unit,
and a PIN test unit transmitting a pin configuration confirmation control signal for confirming the pin configuration of the first memory unit and the first controller unit of the first USB memory unit.
8. The method of claim 7,
According to the pin configuration of the first memory unit and the first controller unit of the first USB memory unit confirmed under the control of the PIN test unit, a signal line connected to the first controller unit of the first USB memory unit is removed, and the second USB memory unit USB memory data recovery device, characterized in that removing the signal line connected to the second memory unit of the negative.
The method of claim 1,
The first USB memory unit,
It is disposed on the first PCB board part, and further includes a first test pin part connected to the signal line of the first memory part and the first controller part for testing, respectively,
The second USB memory unit,
It is disposed on the second PCB board part, and further includes a second test pin part connected to the signal lines of the second memory part and the second controller part for testing, respectively,
and a data recovery signal line connecting unit connecting the first test pin unit of the first USB memory unit and the second test pin unit of the second USB memory unit to each other;
The data recovery apparatus of the USB memory, characterized in that the second controller unit of the second USB memory unit controls the first memory unit of the first USB memory unit according to the connection connection of the data recovery signal line connection unit.

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