JPH07287683A - Method and device for data conversion - Google Patents

Abstract

PURPOSE:To execute data conversion for converting data between different OS, and to make data contents after the conversion capable of being recognized. CONSTITUTION:The data of an OS-9 system is recorded by formatting a floppy disk by using the CPU of Motorola system. The OS-9 system data recorded on the floppy disk is read out of the floppy disk (step 5100), and is stored once in a memory, and the OS-9 system data is conversion-processed so as to meet the storage form of MS-DOS system data by using conversion software on the market (step S101). Next, the data whose storage form has been converted is rearranged so as to coincide with the data constitution of an MS-DOS system (step S102). Thus, the data can be converted into the data whose data contents can be recognized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data conversion method and a data conversion device for converting data that can be recognized by different operating systems (OS).

[0002]

2. Description of the Related Art In recent years, with the development of computers, various operating systems (hereinafter, also referred to as OSs) have been used for effectively operating and reasonably operating computers. This operating system is software that controls, manages, and controls input / output of other programs in the computer system.

The data processed by the OSs can be exchanged as they are because the format format for storing the data is the same between the same OSs. However, when exchanging data between different OSs, it is necessary to convert to the same data storage format.

For example, as a typical OS of a computer, "OS-9" using a CPU of Motorola system,
There is "MS-DOS" using an Intel CPU. The floppy disk formatted by the OS-9 system cannot be read by the MS-DOS system due to the size of the sectors and clusters.

Therefore, when the data created by the OS-9 system is read by the MS-DOS system, or when the data created by the MS-DOS system is read by the OS-9 system, it is currently used. Using commercially available conversion software, read the data written in the specified area on the floppy disk,
By writing in the recording area corresponding to the storage format of the floppy disk of the OS after conversion, it is possible to convert to a data format in which data can be written, saved, and read.

[0006]

However, in such a conventional data conversion device, data is converted between OSs having different data storage formats in a recording medium. However, the data structure after the data conversion is changed. When the (data arrangement order) differs depending on each OS, for example, OS-9
When converting data such as real numbers or integers of the system into MS-DOS system data, the data structure is different, so MS-DO
Even if it was possible to write, save, and read as S-system data, it was not possible to recognize the individual data contents.

For example, in a robot such as a bonder used for assembling a product, drive control is performed using OS-9 system data, but the program data is saved or the program data is copied to another bonder. In this case, an MS-DOS type machine with a high diffusion rate is used. Therefore, as described above, if you convert data using commercially available conversion software, you can write, save, and read data, but recognize the individual data contents,
There is a problem that editing work such as changing the numerical value of the program data cannot be performed.

Contrary to the above case, MS-DOS
Even when the system data is converted into the OS-9 system data, there is a problem in that the individual OS-9 system data cannot be recognized because the data structure is different similarly to the above.

FIG. 8 is a diagram showing the data structure of one record representing a real number, an integer, etc., (a) is OS-9 data, and (b) is MS-DOS data. .

As shown in FIG. 8A, in the data structure of the OS-9 system, a sign (1 bit) 2, an exponent part (11 bits) 3, a mantissa part (52 bits) 4 from the MSB at the head of the data. Are arranged in order. However, in the MS-DOS system data shown in FIG. 8B, from the MSB at the beginning of the data, the mantissa part (52 bits) 14 and the exponent part (11 bits) 1
3, data (1 bit) 12, data are arranged in the reverse order. As described above, the data structures of different OSs could not be matched even if the data storage format was converted using commercially available conversion software. Therefore, the contents of the data cannot be recognized, and as a result, the data editing work cannot be performed.

The present invention has been made in view of the above problems, and is a data conversion method capable of performing data conversion for data exchange between different OSs and making the converted data recognizable. Another object of the present invention is to provide a data conversion device.

[0012]

According to a first aspect of the present invention, there is provided a data conversion method according to the first aspect, wherein a data storage format for writing data to a recording medium and a data structure of the written data are different from each other. A data conversion method for performing a data conversion process for exchanging data between system data, comprising: a step of reading first OS system data recorded on a recording medium; and a step of reading the first OS system data read OS
And a step of converting the system data into a storage format in a recording medium, and a step of converting the data converted into the storage format of the second OS system data into the same data configuration as the data array of the second OS system. Thus, the above-mentioned object is achieved.

According to a second aspect of the data conversion method, the step of converting the data structure of the second OS system according to the first aspect comprises:
A step of dividing the data converted into the data storage format of the second OS system into predetermined block units, and a step of rearranging the data of each block unit and converting the data into the second OS data structure. You may have.

The data conversion method according to the third aspect may include a data editing step of changing the data content by using the data converted into the second OS data structure.

A data conversion method according to a fourth aspect is the data conversion method according to the third aspect, wherein the step of reading the data from the recording medium of the second OS system data and the first read the second OS system data. The step of converting the data structure of the OS system to the data structure of the first OS system and the step of converting the data converted to the data structure of the first OS system into the data storage format of the first OS system.

According to a fifth aspect of the present invention, there is provided a data conversion device, in which a data storage format for writing data to a recording medium and a data structure of the written data are different between the first OS system data and the second OS system data. A data conversion device for performing a data conversion process for exchanging data, comprising: a data reading unit for reading first OS system data recorded on the recording medium; and a second OS system for reading the first OS system data read. Data storage format conversion means for converting the data into the storage format of the recording medium, and data structure conversion for converting the data converted into the storage format of the second OS system data into the same data structure as the data array of the second OS system. By providing the means and
To achieve the above objectives.

According to a sixth aspect of the present invention, there is provided a data conversion apparatus, wherein the data configuration conversion means according to the fifth aspect divides the data converted into the second OS data storage format into predetermined block units. A data rearrangement unit that rearranges the divided block-unit data and converts it into the second OS data structure may be configured.

A data conversion apparatus according to a seventh aspect of the present invention may include a data editing unit that changes the data content by using the data converted into the second OS data structure.

[0019]

According to the data conversion method of the first aspect, the first O
The S-system data is read, the first OS-system data is converted into the storage format of the second OS-system data, and the converted data is further arranged into a data array of the second OS-system. Convert.

Therefore, not only is the first OS system data converted to the second OS system data storage format by using a commercially available conversion software, but also the data structure conversion is performed so that the data arrangement is also matched. , It becomes possible to recognize the data contents, and it is possible to edit the data.

According to the data conversion method of the second aspect, the second
In the step of converting into the data structure of the OS system, the data converted into the data storage format of the second OS system is divided into predetermined block units, and the data is rearranged in each divided block unit. The data structure can be easily converted between different OSs.

In the data conversion method according to claim 3, the second method is used.
Since the data is converted using the OS-based data structure, the data content can be rewritten.

In the data conversion method according to claim 4, the first
After the data converted from the above OS system data to the second OS system data is edited with the second OS system data,
Since the original first OS system data can be converted and used, even different OS system data can be freely edited by using the desired OS.

According to another aspect of the data converter of the present invention, the first OS data is read by the data reading means, and the read first OS data is converted into the second OS data by the data storage format converting means. The data structure is converted into a storage format, and the data structure is converted by the data structure conversion means so as to become the data array of the second OS system.

Therefore, not only the first OS system data is converted into the second OS system data by using a commercially available conversion software, but also the converted data structure is made coincident, so that the data contents are recognized. It becomes possible to edit the data.

According to another aspect of the data conversion device of the present invention, the data structure conversion means divides the data converted into the data storage format of the second OS system by the data division means into predetermined block units, and the divided block units. Since the data of (1) is rearranged, the data conversion for matching the data structure between different OSs can be easily performed.

In the data conversion device according to the seventh aspect, since the data is edited by using the data converted into the data structure of the second OS system by the data editing unit, the data content can be rewritten.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 7 are views for explaining a data conversion method and a data conversion device according to an embodiment of the present invention.

A feature of the data conversion method in this embodiment is that the data conversion is performed in two steps in order to convert the data between the OS-9 data and the MS-DOS data into recognizable data.

That is, conventionally, the conversion processing of the data storage format that matches the data storage format with the converted operating system is performed so that the data can be exchanged between the OSs having different format formats for storing the data using the commercially available conversion software. It is carried out. In addition, in this embodiment, in addition to the conversion processing of the storage format, the converted O
In order to match the data array of S, the conversion processing of the data structure is performed.

FIG. 1 is a flow chart for explaining the data conversion method of this embodiment, and FIG. 2 is a flow chart for explaining a subroutine relating to the conversion processing of the data structure of FIG.

The data conversion method of this embodiment will be described in detail with reference to FIGS. 1 and 2.

First, a recording medium such as a floppy disk is initialized (formatted) by using a Motorola CPU.
Then, the OS-9 data is recorded on this floppy disk.

The OS-9 data recorded on the floppy disk is read out from the floppy disk using the Motorola CPU as shown in step S100 of FIG.

Next, the read OS-9 data is
Once stored in the memory, the OS-9 system data is converted by using commercially available conversion software so as to match the storage format of the MS-DOS system data (step S1).
01).

Next, a data structure conversion process is performed so that the data converted so as to match the storage format of the MS-DOS system further matches the data array of the MS-DOS system (step S102).

Then, the MS-DOS system data which has been subjected to the two-step data conversion as described above is stored in a floppy disk or the like (step S103).

In this way, the OS-9 data is sent to the MS
-By converting to DOS data, the data structure after conversion matches the data structure of MS-DOS, so it is possible to recognize the data contents after conversion using the MS-DOS system. Next, you can edit the data.

FIG. 2 shows a subroutine process for converting the data structure in step S102 of the present embodiment.

The conversion process of the data structure shown in FIG. 2 is performed in units of one record (8 bytes = 64 bits), for example. Then, step S101 in the flowchart of FIG.
Then, the data storage format is converted from OS-9 to MS-DOS, but the data structure remains the OS-9 system data.

Therefore, in step S200 of FIG. 2, the data in units of one record (64 bits) having the data structure of the OS-9 system after the storage format conversion is converted into 4 in this case.
The blocks are divided bit by bit (step S200). Specifically, the address of each data block of 4 bits is recognized, and the data can be read in block units. Thus, by dividing the data in units of 4 bits, the exponent part and the mantissa part are not cut off on the way, and the data structure can be converted without any trouble.

FIG. 3 is a diagram for explaining the operation when the data structure is converted in FIG. 2, and FIG.
FIG. 4 is a diagram showing divided data names divided into a plurality of blocks in FIG.

That is, in FIG. 3A, the double-precision real number type OS-9 data is used to transfer data of one record from the beginning (MSB) to the end (LSB) in units of 4 bits.
Ascertain the address of each block so that it is divided into six equal parts. Here, suppose that the data of the first block is 41a, 2
The data of the block is 41b.

Next, the data divided into 16 equal parts in step S201 of FIG. 2 are read out byte by byte in a predetermined order. Data may be read out by reading each block of 4 bits individually, but here, data processing (reading / writing, etc.) is performed in 1 byte (8 bits).
Since it is performed in units, it is set in 1-byte units accordingly. Then, when reading the data byte by byte, as shown in FIG. 3B, the order of the data within 1 byte is exchanged and read, such as data 41b (2 blocks) and data 41a (1 block), The first 1-byte block data is “A”. 2nd byte is 4
The data is read out in the order of blocks and 3 blocks and designated as "B". In this way, in the same manner, the data of one record (64 bits) is read byte by byte,
Reading of 8-byte data as "C", "D", "E", "F", "G", and "H" is completed (step S202).

The divided data read out byte by byte as described above is “A” for the sake of explanation, as shown in FIGS. 3 and 4.
Data names up to "H" are added.

Next, in step S203 of FIG. 2, the data read out in 1-byte units is rearranged. The data structure of OS-9 system and MS-DOS system is
For example, as shown in FIGS. 8A and 8B, reference numerals 2 and 12, exponents 3 and 13, and mantissas 4 and 14 are arranged in reverse. The difference in the data structure is that the OS-9 is processed by the Motorola CPU, while the MS-DO is processed.
This is because S is processed by an Intel CPU.

Therefore, in step S203 of FIG. 2, the divided data from "A" to "H" shown in FIG.
As shown in (c), "H", "G", "F" ...
Sort in the opposite direction, like "A". As a result, FIG.
As shown in FIG. 8D and FIG. 8B, the data is converted so as to match the data structure of the MS-DOS system (step S20).
4) The converted data contents can be recognized by the MS-DOS system, and the data editing work such as making changes to the data contents can be performed.

In the above-mentioned embodiment, the OS-9 system data is sent to the MS.
-Conversion processing was performed to the storage format and data structure of DOS data, but conversely to this, MS-DOS data was converted to OS-
It is also possible to perform conversion processing into 9-series data, which will be described below with reference to FIGS. 5 and 6.

FIG. 5 is a flow chart for explaining a data conversion method according to another embodiment, and FIG. 6 is a flow chart for explaining a subroutine relating to conversion processing of the data structure of FIG.

Therefore, a recording medium such as a floppy disk is formatted using an Intel CPU, and MS-DOS data is recorded on this floppy disk.

When the MS-DOS system data recorded on the floppy disk is converted to OS-9 system data, the MS-DOS system data is converted to the MS-9 system data as shown in step S300 of FIG.
-Read DOS data from a floppy disk using an Intel CPU.

Next, the read MS-DOS system data is temporarily stored in the memory, and this MS-DOS system data is made to match the storage format of the OS-9 system data by using commercially available conversion software. (Step S301).

Next, the data converted to the OS-9 system data storage format is further processed to be converted to the OS-9 system data structure (step S302).

The data converted into the above two stages is stored in a floppy disk or the like (step S30).
3).

As described above, by converting the MS-DOS system data into the OS-9 system data, the converted data structure can be matched with the OS-9 system data. Therefore, the converted data contents can be recognized using the OS-9 system (Motorola CPU), and the data can be edited.

The subroutine of the data conversion process in step S302 is performed as shown in FIG.

That is, the data structure conversion processing shown in FIG.
Similar to the above embodiment, one record unit (8 bytes = 64
A bit) done. Therefore, in step S301 of the flowchart of FIG. 5, the data storage format is MS-DO.
Although the S system is converted to the OS-9 system, the data structure itself remains the MS-DOS system data.

Therefore, in step S400 in FIG. 6, one record (64 bits) of data having the data structure of the MS-DOS system after the storage format conversion is divided into blocks of 4 bits in this case ( Step S4
00). Specifically, by recognizing the address of the data block of 4 bits each, it becomes possible to process the data in units of blocks.

Next, in step S401 of FIG. 6, the divided data, which is divided into 16 equal parts by 4 bits, is set to 1 from the beginning of the data.
It is read byte by byte. When reading data one byte at a time, the 4-bit divided data included in one byte is read while changing the order.

Next, in step S402, when the reading of the data of 8 bytes (one record) is completed, the process moves to step S403 and the data is rearranged.
The data structure of the MS-DOS system and the OS-9 system is shown in FIG.
As shown in (a) and (b), the sign, the exponent part, and the mantissa part are arranged in reverse.

Therefore, when rearranging the data in step S403 of FIG. 6, the divided data of each block are arranged in the reverse order. Since the data rearranged as described above matches the data structure of the OS-9 system shown in FIG. 8A (step S404), the data can be recognized by the OS-9 system (Motorola CPU). , It is possible to perform editing work such as adding changes to the data contents.

As described above, according to the data conversion method of this embodiment, from MS-DOS system data to OS-9 system data,
Alternatively, when the data is converted from the OS-9 data to the MS-DOS data, the storage format of the data is converted and the data is rearranged so that the data configuration matches the conversion target system. . Therefore, the conversion data between different OSs can read, save, and write the data, and can recognize the individual data contents, and can perform data editing operations such as deletion and addition of the data.

For example, a bonder conventionally used as a robot for assembling products has a control program written in OS-9 system data. When saving the bonder control program, commercially available conversion software is used. However, the data content could not be recognized because the data structure was different.

Therefore, in the above-described data conversion method of this embodiment, since the conversion processing of the data structure is performed, the MS-DOS
It became possible to recognize the data contents in the related system and perform editing work such as adding or deleting new data.

Next, FIG. 7 is a block diagram showing the structure of the bonder and a data conversion device for storing / editing the program data of the bonder.

First, the structure will be described.

As shown in FIG. 7, the data converter 21
Is an OS-9 system data read circuit 23, a memory 24, a data converter 25, a data storage format converter 26, a data structure converter 27, a floppy disk 28, a read circuit 29,
It comprises a floppy disk 30, an MS-DOS system data editing section 31, and a floppy disk 32.

The OS-9 system data read circuit 23 operates as OS-
The 9-system data is read from the floppy disk 22 and the program data input / output control unit 34 described later, and is composed of a Motorola CPU.

The memory 24 is a recording medium for temporarily storing the read OS-9 data, and is a RAM (Ra
ndom Access Memory) etc.

The data conversion section 25 is composed of a data storage format conversion section 26 and a data configuration conversion section 27.
In order to convert the data storage format and the data structure between different OSs, two types of data conversion are performed using commercially available conversion software or the like.

The data storage format conversion unit 26 is O
The data storage format is converted between the S-9 system data and the MS-DOS system data, and is composed of Intel and Motorola CPUs here. And the conversion software for converting the data storage format is
The data is read from the floppy disk 28 via the reading circuit 29 and supplied to the data storage format conversion unit 26.

The data structure conversion unit 27 rearranges the data so that the data structure in which the data storage format is converted matches the operating system (OS-9 / MS-DOS) to be converted. Specifically, the data is rearranged so that the arrangement order of the code, the exponent part, and the mantissa part forming the data matches the OS to be converted. In rearranging the data, reading is performed for each predetermined bit unit, the data is divided into a plurality of blocks, and the divided data is rearranged to be converted into a desired data structure.

The floppy disk 30 is a recording medium in which the data converted by the data structure conversion unit 27 into the MS-DOS system data structure is written and stored.

The MS-DOS system data editing unit 31
-9 MS data storage format and data structure
-By converting to DOS system data, the converted data contents can be recognized, and the recognized data is displayed on a display or the like to edit the data. For example, the control content can be freely changed by changing the numerical data that controls the bonder 33.

The floppy disk 32 is an MS-DOS.
It is a recording medium for writing and saving the MS-DOS system editing data edited by the system data editing unit 30.

Further, a bonder 33 for assembling work based on the OS-9 system program data shown in FIG.
Is a program data input / output control unit 34, a CPU 35,
It is composed of a drive control circuit 36 and a load 37.

The program data input / output control unit 34 inputs the program data for controlling the drive of the bonder 33 and outputs the data to the data conversion device 21 for storing and editing the program data. When inputting the program data, the MS-DOS system data (including the editing data) stored in the floppy disk 30 or 32 is input to the data conversion unit 25 and the OS-
After being converted to 9-series data, it is input as OS-9-series program data. When the program data is stored and edited, the program data is output to the OS-9 system data read circuit 23 to be converted into the MS-DOS system data storage format and data structure, and then as the MS-DOS system data. Edit or save processing is performed.

The CPU 35 controls the bonder 3 based on the program data of the program data input / output control section 34.
It controls the operation of the whole 3.

The drive control circuit 36 drives the robot arm of the bonder 33 while numerically controlling them on the coordinate axes.
Controls the position of the robot arm and actions such as grasping an object with the robot hand.

The load 37 is a drive portion of the bonder 33 driven by the drive control circuit.

Next, the operation will be described.

In the bonder 33, the CPU 35 operates the bonder 3 based on the OS-9 system program data stored in advance in the memory of the program data input / output control section 34.
3 and controls the load 3 via the drive control circuit 36.
7 is controlled.

In the present embodiment, when copying the program data of the bonder 33 to another bonder or storing the program data for backup, the program data in the program data input / output control unit 34 is converted into the data converter 21. The data is read by the OS-9 system data read circuit 23 and temporarily stored in the memory 24, and the stored data is converted into MS-DOS system data by the data converter 25. In this data conversion, the data storage format conversion unit 26 first converts the storage format of the OS-9 data to the MS-DOS data by using commercially available conversion software. Then, the data whose data storage format has been converted is further rearranged into a MS-DOS system data array by the data structure conversion unit 27, so that the data structure is also converted to the same structure as the MS-DOS system data. be able to. As described above, when the data converted in two stages is stored as it is, it is written and stored in the floppy disk 30 as it is. Further, when the editing work such as deleting a part of the contents of the program data or making a change is performed, the data is edited by the MS-DOS system data editing unit 31, and the floppy disk 32 is used as the editing data.
Save to.

As described above, when it is desired to control the drive of the bonder 33 using the program data saved as it is or the edited program data, the program data saved in the floppy disk 30 or 32 is converted by the data converter 25. The data is converted into OS-9 system data, input to the program data input / output control unit 34 of the bonder 33, and written in a memory (not shown).

As described above, in the data converter of this embodiment, for example, program data such as a bonder which is drive-controlled using OS-9 system data can be easily stored in an MS-DOS system personal computer or the like. You can now edit. In the above embodiment, an example in which the data converter is applied to a bonder has been described, but the present invention is not limited to this, and any device that needs data conversion between different OSs may be used. Can be applied.

[0087]

According to the data conversion method of the first aspect, the first OS data is read and converted into the storage format of the second OS data, and the converted data is further converted into the second OS data. Since the data structure is converted so that the data array becomes, the data content of the converted data can be recognized, and editing work such as adding / correcting the data can be performed.

According to the data conversion method of claim 2,
In the process of converting to the data structure of the second OS system, the second O
The data converted into the S-system data storage format is divided into predetermined block units, and the data is rearranged in each divided block unit, so that the data configurations can be easily matched even between different OSs. be able to.

According to the data conversion method of claim 3,
Since the data is edited using the data converted into the second OS data structure, the converted data can be freely changed to desired data contents.

According to the data conversion method of claim 4,
The data converted from the first OS-based data to the second OS-based data can be edited with the second OS-based data and then converted back to the original first OS-based data for use. Therefore, even if the OS data is different, the desired OS
You can freely edit the data using.

According to the data converter of claim 5,
The data read means reads the first OS system data, the read first OS system data is converted into the storage format of the second OS data by the data storage format conversion means, and the data is converted into the data structure conversion means. As a result, the data structure is converted so that it becomes the second OS data array, so that the converted data contents can be recognized, and editing work such as addition / correction of data can be performed.

According to the data converter of claim 6,
The data structure conversion means uses the data division means to generate the second O
Since the data converted into the S-system data storage format is divided into predetermined block units and the divided block unit data is rearranged, the data configurations can be easily matched even between different OSs. it can.

According to the data converter of claim 7,
Since the data is edited by using the data converted by the data editing unit into the data structure of the second OS system, the converted data can be freely changed to desired data contents.

[Brief description of drawings]

FIG. 1 is a flowchart illustrating a data conversion method according to this embodiment.

FIG. 2 is a flowchart illustrating a subroutine relating to conversion processing of the data structure of FIG.

FIG. 3 is a diagram illustrating an operation when a data structure conversion process is performed in FIG.

FIG. 4 is a diagram showing divided data names divided into a plurality of blocks in FIG.

FIG. 5 is a flowchart illustrating a data conversion method according to another embodiment.

FIG. 6 is a flowchart illustrating a subroutine relating to conversion processing of the data structure of FIG.

FIG. 7 is a block diagram showing a configuration of a bonder and a data conversion device for storing / editing program data of the bonder.

FIG. 8 is a diagram showing a data structure for one record representing a real number, an integer, and the like.

[Explanation of symbols]

 41 OS-9 system data 41a, 41b Block data 42 MS-DOS system data 21 Data conversion device 22 Floppy disk 23 Data reading circuit 23 24 Memory 25 Data conversion unit 26 Data storage format conversion unit 27 Data configuration conversion unit 28 Floppy disk 29 Reading circuit 30 Floppy disk 31 MS-DOS system data editing unit 32 Floppy disk 33 Bonder 34 Program data input / output control unit 35 CPU 36 Drive control unit 37 Load

Claims (7)

[Claims] 1. A first data storage format for writing data to a recording medium and a data structure of the written data are different.
A data conversion method for performing a data conversion process for exchanging data between the OS-based data and the second OS-based data, the step of reading the first OS-based data recorded on the recording medium, and A step of converting the first OS-based data into a storage format of the second OS-based data in a storage medium; and a step of converting the data converted into the storage format of the second OS-based data into a second format.
And a step of converting into the same data configuration as the OS-based data array of (3). 2. A step of converting the data structure of the second OS system into a predetermined block unit of the data converted into the data storage format of the second OS system; The data conversion method according to claim 1, further comprising a step of rearranging the data and converting the data into a data structure of a second OS system. 3. The data conversion method according to claim 1, further comprising a data editing step of changing the data content by using the data converted into the second OS data structure. 4. A step of reading data from a recording medium of second OS system data, a step of converting the read second OS system data into a data structure of the first OS system, and a step of converting the first OS system data. The data converted into the data structure is the first O
4. The data conversion method according to claim 3, further comprising a step of converting to an S-system data storage format. 5. A first data storage format for writing data to a recording medium and a data structure of the written data are different.
A data conversion device for performing a data conversion process for exchanging data between the OS data and the second OS data, and a data reading unit for reading the first OS data recorded on the recording medium. Data storage format conversion means for converting the read first OS system data into a storage format of the second OS system data in the recording medium, and data converted into the storage format of the second OS system data in the second format.
A data structure conversion means for converting the data structure to the same data structure as that of the OS system data array of 1. 6. The data composition conversion means divides the data converted into the data storage format of the second OS system into predetermined block units, and the divided block unit data is rearranged. The data conversion device according to claim 5, comprising: a data rearranging unit that converts the data into a second OS system data structure. 7. The data conversion device according to claim 5, further comprising a data editing unit for modifying the data content by using the data converted into the second OS system data structure.