JP3196112B2 - Method of duplicating card type storage medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for copying a card-type storage medium, and more particularly to a method for quickly processing data from a copy-source card-type storage medium to a plurality of copy-destination card-type storage media by a simple method. The present invention relates to an invention capable of copying in time.

[0002]

2. Description of the Related Art As is well known, a card-type storage medium is widely used, and data is often copied to the card-type storage medium. To copy the data, data in the copy source card type storage medium may be written into a predetermined number of copy destination card type storage media, or a plurality of copy destination card type storage media may be formatted in a predetermined format. And the like.

An example of a conventional duplication method used for this purpose will be described with reference to FIGS. 4, 5 and 7, and another example will be described with reference to FIGS. 6 and 8. First, FIGS. One example of FIG. 7 is an individual read / write device 2 as shown in FIG.
0, 21, 22, 23 are card-type storage media 30, 31,
As shown in FIG. 5, at step 1 ', the copy source card type storage medium is set in the read / write device, and at step 2', n sheets (4 in this example) are set.
Copy destination card type storage media 30, 31, 32, 3
3 for each individual read / write device 20, 21, 22, 23
Is set, and a copy start command is issued in step 3 '.

Then, in step 5 ', the data in the card type storage medium 30 set therein is first set by the first individual read / write device 20 designated for copy processing among the plurality of card type storage media. The write state is detected (read) during time t1 as shown in FIG. (A '
1) If it is detected that the data can be written, the data is written to the card type storage medium 30 during the time t2-t1 in the next step 6 '. (B'1) Next, in step 7 ', individual read / write to be performed next second copy processing
The designation of the writing device is changed. (C'1) The above processing is repeated for a predetermined number of sheets, in this example, the processing from A'1 to C'1 is sequentially repeated for four sheets. That is, this is a method of copying one by one by the individual read / write device of each card type storage medium.

As another conventional example, as shown in FIG. 6, a dedicated read / write device 40 capable of simultaneously reading a plurality of (four in this example) card-type storage media and writing data therein is provided. And card-type storage media 50, 51,
At the same time for all 52 and 53, first write the card data
The detection (reading) (A "1) of the write state is performed during time t'2 as shown in FIG. 8 , and then the data writing (B" 1) is performed during time t'2-t'1. It is.

[0006]

FIG. 4, FIG. 5, FIG. 7
In the case of an example of the prior art shown in FIG.
The individual read / write device 20 detects (reads) the data write state of the card (A'1) for the card-type storage medium 30 and checks the state in which data can be written. Data writing (B'1) is performed on the storage medium 30, and after that, designation of the next card type storage medium is changed (C'1), and thereafter, the second card type storage medium 31, Since the above operation is repeated for the third card-type storage medium 32, the fourth card-type storage medium 33, and the n-th card-type storage medium,
Operations (A'1) and (B ') of the first card type storage medium 30
1) Assuming that the time until (C′1) is t3, for example, in the case of four card-type storage media, the time is 4t3 (4 of time t3).
Time is doubled), that is, the time is proportional to the number of card-type storage media to be copied, which greatly limits the reduction of data copy time to the card-type storage media.

On the other hand, in another example of the prior art shown in FIGS. 6 and 8, n cards, in this example, all four card-type storage media 50, 51, 52, 53 are simultaneously dedicated. Since the read / write device detects the write state of the card type storage medium (A "1) and then performs the data write (B" 1), the data copy time is limited to the number of card type storage media. Data copy time to the card-type storage medium is short. However, the dedicated read / write device 40 requires a dedicated circuit for converting one read / write cycle to the card-type storage medium into a copy cycle to each destination card-type storage medium. The number of parts was large, the design and assembly were complicated, the production cost was high, and the maintenance was difficult. In addition, although there are various types of card-type storage media, according to this dedicated read / write device, even if it can be applied to one type of card-type storage medium, it can be applied to other types of card-type storage media. If it can be applied, a conversion circuit or the like is required, which may be complicated.

Accordingly, an object of the present invention is to provide a method of copying a card-type storage medium which can greatly reduce the time required for copying data to a plurality of card-type storage media. However, without using special circuit components such as a dedicated circuit for converting a copy cycle to each copy destination card type storage medium as described above in a read / write device, it is used in an example of the prior art. Card-type storage medium that can be manufactured easily, cost-effective and easy to maintain because it uses the same circuit as it is, and the time required to copy data to multiple card-type storage media can be greatly reduced. To provide a replication method.

[0009]

The present invention has the following technical means to achieve the above object. That is, the present invention will be described with reference to the accompanying drawings showing the present invention. The present invention will be described with reference to a plurality of card type storage media 10, 11, 12, 1.
De individual card-type storage medium that can be individually accessed 3
Data writing state detection devices, that is, reading devices 1, 2, 3,
4 is provided. In this case, since it is only necessary to have a read function, general-purpose read / write can be performed without using a special dedicated circuit.
This can be handled by using a writing device and using its reading function. Further, card type storage media 10, 11, 1
2 and 13 are provided with a common writing device 5 capable of simultaneously writing copy data. Since it is not necessary to read data simultaneously for all of the plurality of card-type storage media at the same time, that is, it is only necessary to have a function of simply writing copy data to all of the plurality of card-type storage media at the same time. Can be used. For example, in the case of a PC card, which is a kind of card type recording medium, a general-purpose PC card control L
SI can be used.

With this configuration, the copy source card type storage medium is set in step 1 and the
And n copy destination card type storage media 10, 11, 1
2 and 13 are a common writing device 5 and an individual reading device 1
When the copy start instruction is given in step 3, copy data is read and stored from the copy source card type storage medium in step 4, and then in step 5, n copy destination cards are set. Among the type storage media, the data reading state of the card type storage medium 10 therein is detected (A) by the individual reading device 1 for which copy processing is designated, that is, the data is read out, and then n sheets are obtained in step 6. Day of the second card-type storage medium of the card-type storage medium
To detect the data write state, the second specified changes in the individual reading apparatus 2 (C), a total of n number of the card type storage medium 10, 11, 12 and 13 by repeating the same operation thereafter de
Data write state is detected. Assuming that the time required for detecting the card state (A) and changing the designation (C) for one card-type storage medium is T1, if there are n card-type storage media, reading of the n card-type storage media is performed. Is T1 × n. Then, in step 7, the copy data is simultaneously written to all of the n copy destination card type storage media 10, 11, 12, 13 by the common writing device 5. (B) Thereby, predetermined data is copied to all card-type storage media. Time T2-4 required for this data writing to write data to one card type storage medium
Since it is performed in the time T1, the time for copying data to all card-type storage media becomes extremely short. FIG. 3 shows this. Thus, the individual read device or common writer described above can be considered as a read or write circuit or interface or even an I / O port.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As a preferred embodiment of the present invention, a PC card duplication device AMI-306 using a general-purpose PC card controller LSI manufactured by Adtec System Science Co., Ltd. is used for each of the individual reading devices 1, 2, 3, and 4. On the other hand, the common writing device 5 was set so that the PC card controller LSI in the AMI-306 was changed in setting so that it could be used as a common writing device. In this embodiment, four PC cards SDP3B-4 having a capacity of 4 Mbytes of the ATA system manufactured by SanDisk Corporation are used as the card-type storage media 10, 11, 12, and 13, and the contents of the copy-source card-type storage media are used. Tried to duplicate each. The AMI-306 used here is obtained by changing the control program for verification of the present invention. As a result, the four card-type storage media 10, 11, 12, 13
It took 23 seconds for the AMI-306 to make the card-type storage medium of the copy source have the same contents.
This time includes a time of 11 seconds required for reading data from the copy source card type storage medium. Therefore, the four card-type storage media 10, 11, 12, 1
The time required to write to 3 simultaneously is 2
It takes 12 seconds from 3 seconds to 11 seconds.

[0012]

Comparative Example In contrast, in the case of the conventional example shown in FIG. 4, Adtec System Science Co., Ltd. was used as the individual read / write device 20, 21, 22, 23 of each card type storage medium 30, 31, 32, 33. When the same processing as that of the embodiment was attempted by using the interface product name AMI-306 made by the company, a total of four card-type storage media were written as about 22 seconds for writing one card-type storage medium 30. It took a total of about 55 seconds to replicate. This time includes 11 seconds required to read data from the card-type storage medium of the copy source as in the embodiment.
The copying time of a sheet is 44 seconds from 55 seconds to 11 seconds, which is 11 seconds per sheet. As a result, it took about four times as much processing time to copy the entire card type storage medium as compared to the above embodiment.

[0013]

According to the present invention, as described in detail above, the copy source
Card type storage media data can be copied to multiple destination card types
A method of copying to a storage medium, wherein a plurality of copy destinations
Each of the card type storage media 10, 11, 12, and 13 is individually read.
Cards 1, 2, 3, and 4 in time sequence.
Reads the data write status and reads all copy destination card type storage media.
Data writable state of the card of body 10, 11, 12, 13
After detecting the status, the multiple destination cards
Copy source card in the type storage media 10, 11, 12, 13
Type data on a storage medium or data on a computer
In the method of copying a card-type storage medium to be embedded,
Several copy destination card type storage media 10, 11, 12, 1
3 by a common writing device 5 that can access all of
Read and save the copy source card type storage medium
Data or data on a computer
Write to the destination card type storage media 10, 11, 12, 13
Therefore, when data is copied to a plurality of card-type storage media, the time required for copying can be greatly reduced. In particular, the copy processing time was greatly reduced without using any special parts or circuits, and without making any hardware changes to existing products. Therefore, the design and manufacturing are easy, the cost is reduced, and the maintenance is easy.

[Brief description of the drawings]

FIG. 1 is a functional block diagram illustrating a method of copying a card-type storage medium according to the present invention.

FIG. 2 is a step chart of data copying to a copy destination card type storage medium according to the present invention.

FIG. 3 is a diagram showing a processing time of data copy to a copy destination card type storage medium according to the present invention.

FIG. 4 is a functional block diagram showing a method of copying a card-type storage medium according to Prior Art 1.

FIG. 5 is a step chart of data copying to a copy destination card type storage medium according to Prior Art 1;

FIG. 6 is a functional block diagram showing a method of copying a card-type storage medium according to Prior Art 2;

FIG. 7 is a diagram illustrating a processing time of data copy to a copy destination card type storage medium according to the related art 1.

FIG. 8 is a diagram showing a processing time of data copy to a copy destination card type storage medium according to Prior Art 2;

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G06K 17/00 G06F 3/06-3/08 G06F 17/00

Claims (1)

(57) [Claims] In a method of copying data of a copy source card type storage medium to a plurality of copy destination card type storage media, a plurality of copy destination card type storage media is provided.
The data read states of the cards are sequentially read out sequentially by the individual readout devices 1, 12, 13 and 1, and all the copy destination card type storage media 10, 11, 12, 13 are read out.
After the detection of the data writable state of the card has been completed, a plurality of copy destination card type storage media 10, 11, 12, 1
The data of the copy source card-type storage medium or the data on the computer, which has been read and stored in advance by the common writing device 5 capable of accessing all of the storage mediums 3, can be simultaneously copied to all the copy-destination card-type storage media 10, 11, and 12. , 13 in which a card-type storage medium is copied.