JPH0668162A - Data management method for electronic file device - Google Patents

Abstract

PURPOSE:To improve the service efficiency of the electronic file device by allowing the user to recognize the delete effect obtained by simultaneous delete and selecting the execution or execution stop for simultaneous delete prior to simultaneous delete of data not required on a storage medium. CONSTITUTION:When the user selects a mouse 6 to select a packing, a ratio of a storage area enabling 2nd writing by the simultaneous delete in a rewrite optical disk 4 is displayed on a CRT display device 3 as the delete effect by packing to allow the user to recognize the effect prior to the execution of the simultaneous delete. The user references the delete effect to select the execution or delete thereby selecting the execution or delete for simultaneous delete.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data management method in an electronic file device called a file system or the like, and more particularly to a data management method in an electronic file device when stored unnecessary information is erased. is there.

[0002]

2. Description of the Related Art Generally, in an electronic file device, in order to record more data such as image information on a storage medium, only the data to be recorded is sequentially written, and the information such as the recording address and the attribute of the data is recorded. , And is separately recorded in a management file (for example, there are products such as an optical disk document file SOF-FS21 manufactured by Sanyo Electric Co., Ltd.).

In the electronic file device as described above, the management information in the management file is erased, but the data on the storage medium is not directly erased. The reason for this is that even if the data is temporarily erased, there is a case where the reproduction is restored again by the instruction of the user, and it is necessary to keep the reproduction recoverable state. Since a useless empty area is formed on the medium, it is necessary to rearrange the data each time an erasing instruction is issued, and the processing becomes complicated.

Therefore, as an improvement of these, the data designated as erase data in the management information of the management file is erased in a lump, and the remaining data is front-justified and reused in the storage medium. Functions that enable (for example,
Sanyo Electric Co., Ltd., optical disc document file SOF-
A product with a well-known packing utility in M88) is commercialized. The packing utility is the name of a utility having a batch erasing function.

[0005]

In the conventional electronic file apparatus, when the above-mentioned packing utility is used to collectively erase data, rearrangement of a large amount of data and rewriting of management information of the management file. It takes a long time, and the user cannot call or write the data in the electronic file device during the time required for rearranging the data and rewriting the management information of the management file.

On the other hand, for each data to be erased,
When erasing is executed, it is necessary to rewrite the entire remaining data array excluding the erasing data in the data and management information of the rewritable optical disk, which increases the time required for the erasing process. Further, during this time, the reproduction of the data such as the image information becomes impossible, and as a result, as compared with the case of collectively erasing the data using the packing utility,
The service will be more degraded.

Further, in the conventional electronic file apparatus, when performing batch erasing, it is not possible to know how much storage area on the storage medium can be secured by the batch erasing, and it is not possible to know the effect of the batch erasing. There is a possibility that the user will not be able to understand the timing of performing the operation, and the batch erase may be performed more than necessary.

Therefore, the present invention enables the user to recognize the erasing effect obtained by the collective erasing before erasing the unnecessary data on the storage medium all at once, and
It is an object of the present invention to provide a data management method for an electronic file device, which enables a user to select whether to execute or cancel batch erasure and improve the service efficiency of the electronic file device.

[0009]

According to a first aspect of the present invention, there is provided a data management method for an electronic file device, comprising a rewritable optical disk for recording data, and inputting and outputting the data to and from the rewritable optical disk. An operation input means for instructing the operation, a display means for displaying the data and various control information input / output to / from the rewritable optical disc, and the data marked by the management information of the management file are erased collectively. Batch erasing unit, erasing effect data for marking data erased by the batch erasing unit to obtain rewritable storage capacity, erasing effect calculation unit, and a value obtained by the erasing effect calculation unit is displayed on the display. After the erasing effect is displayed on the erasing effect display section and the erasing effect display section, an instruction to collectively erase unnecessary data is issued. It is provided with a main control unit comprising a Gyobu.

According to a second aspect of the present invention, there is provided a data management method for an electronic file device, wherein the erasing effect calculating section according to the first aspect erases the data marked by the collective erasing section so that the data can be rewritten. Is divided by the storage capacity of the entire rewritable optical disk to obtain a ratio, which is taken as the effect rate due to the erasure.

According to a third aspect of the present invention, there is provided a data management method for an electronic file device, wherein the erasing effect calculating section according to the first aspect of the present invention erases data marked by the collective erasing section so that the data can be written again. Is expressed by a standardized standard paper size.

[0012]

According to the first aspect of the present invention, when data is registered in the rewritable optical disk, the data is sequentially written in the rewritable optical disk, and
When the management information for the data is written in the management file and the data is erased, the marking process is performed corresponding to the data to be erased in the management information of the management file, and the erasing process on the rewritable optical disc is performed. Are performed collectively. When collectively erasing the marking-processed data, the erasing effect calculation means erases the marking-processed data by the erasing, and the rewritable storage capacity is taken as the erasing effect by the erasing, and the erasing is performed. The effect is displayed on the display means.
Therefore, since the erasing effect is displayed on the display means before the batch erasing of data, the executing means can instruct the batch erasing of unnecessary data only when the batch erasing is necessary.

According to a second aspect of the present invention, there is provided a data management method for an electronic file device, wherein the erasing effect calculating section according to the first aspect erases the data marked by the collective erasing section so that the data can be rewritten. Is divided by the storage capacity of the entire rewritable optical disc to obtain a ratio, which is taken as the effect rate due to the erasure, and the usable storage capacity can always be confirmed with respect to the total storage capacity.

According to a third aspect of the present invention, there is provided a data management method for an electronic file device, wherein the erasing effect calculating section according to the first aspect erases the data marked by the collective erasing section so that the storage capacity becomes rewritable. Is expressed by standardized standard paper size,
It can be judged by the standard paper size that uses the available storage capacity.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A data management method for an electronic file device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing a display example of a deletion effect display when unnecessary data is collectively deleted by using the data management method of the electronic file device according to the embodiment of the present invention. FIG. 2 is a block configuration diagram of a data management method of the electronic file device in the embodiment. FIG. 3 is a schematic diagram showing an example of a file configuration showing a relationship between a management file for performing data record management used in the data management method of the electronic file device and the data record according to the embodiment. FIG. 4 is a schematic diagram showing a format example of the management information in the management file used in the data management method of the electronic file device in the embodiment.

In FIG. 2, the main control means 1 includes a scanner 2 for reading image information and the like, a CRT display 3 for control and output display, a rewritable optical disk 4 for storing data such as image information, and a user. A keyboard 5 for key input, a mouse 6 used as a pointing device, and a printer 7 such as a laser printer are connected.

The main control means 1 is a system control unit 10 including a microcomputer for performing various controls.
1, a scanner I / F circuit 102 for controlling the interface with the scanner 2, a display memory 103 for storing data such as image information output and displayed on the CRT display 3 and control information, and an image stored in the display memory 103. A display control unit 104 for controlling display of data such as information on the CRT display 3, a compression / expansion unit 106 for performing compression / expansion processing of data such as image information written or read on the rewritable optical disk 4, before or after expansion. Image data read from the buffer memory 107 for temporarily storing the data of the compressed image information, the optical disc recording / reproducing unit 108 for performing the recording / reproducing operation with respect to the rewritable optical disc 4, the scanner 2 or the rewritable optical disc 4. An image memory 105 for storing data such as information, information for managing the image information data. Management file 110 that stores the data, a data recording / reproducing unit 109 that performs a recording / reproducing operation on the management file 110, and an erasing effect that calculates an erasing effect obtained by erasing data such as image information of the rewritable optical disc 4. The calculation unit 111 includes a printer I / F circuit 112 that stores the data stored in the image memory 105 as a unit of data to be output to the printer 7 when performing hardware output.

Further, as shown in FIG. 3, the optical disc recording format of the rewritable optical disc 4 of this embodiment is such that data such as image information on the rewritable optical disc 4, that is, "image 1", "image 2". , "Image 3", "Image 4", ...
This is a format when "Image N" is recorded, and is sequentially recorded in order to eliminate waste of the storage area of the rewritable optical disc 4. The management information corresponding thereto is stored in the management file 110. That is, "management information 1", "management information 2", "management information 3", "management information 4", ... "Management information N" for each record of data corresponding to data such as image information. Is recorded as. In addition,
The “erasure flag” in the management file 110 sets a flag for the data erasure target described later (set to “1”).
This is indicated by

Further, the management information will be described in detail. Each management information is recorded in the format shown in FIG.

In FIG. 4, "image number" 3 of the area
00 is a management number assigned for identifying data such as image information. An “erase flag” 301 in the area is a flag indicating whether or not data such as image information is necessary. The flag is lowered at the same time as writing (“0”), and when erasing is desired, the flag is set (“1”). And). The "image attribute" 302 of the area is attribute information such as the size and resolution of data such as image information and the encoding method, the "start address" 303 of the area is the start address of writing to the rewritable optical disc 4 as a storage medium, "Data size" of the area 30
4 is the data length of image information and the "next address" of the area 30
Reference numeral 5 denotes a write start address of the data to be recorded subsequent to the “image number” 300 to the rewritable optical disc 4, and the “start address” 303 of the area and the “image information size” of the area 3
Record the value obtained by adding 04. Therefore, the “next address” 305 in the area of the management information n and the management information n + 1
The "start address" of will match.

FIG. 1 shows a CRT display 3 of this embodiment.
It is an example of the confirmation screen shown in.

"Register" heading for selecting a program for registering individual data in the rewritable optical disk 4, and "Erase" heading for selecting a program for setting a flag when erasing individual data from the rewritable optical disk 4, It has a "utility" heading for selecting a program such as packing, initialization, and failure recovery for batch erasing according to the present embodiment. Furthermore, when "utility" is selected, the selected "utility" heading blinks. The contents of the utility are expanded. The selection operation and the screen display are controlled by executing the main program of the electronic file device.

Here, when the "packing" heading is further selected, the "confirmation" heading blinks, the packing effect is displayed as a percentage, and thereafter, the display waits for the selection of the "execution" heading or the "cancel" heading. .

If there is data to be erased among the data recorded on the rewritable optical disc 4, the program to be erased from the rewritable optical disc 4 is selected by the "Erase" heading, and it corresponds to the data of the management file 110. The deletion flag of the management information to be set is set (set to "1"). This operation is executed as necessary when reading and writing data from the rewritable optical disc 4. However, when it becomes necessary again, it is necessary to lower the erase flag of the management information corresponding to the data of the management file 110 (set it to “0”).

Normally, when registering data such as image information, the "erase flag" 301 in the area of the management file 110 is lowered, and when an erase instruction is issued, the "erase flag" 301 flag is set. Only the marking process as unnecessary data is set up and data is not erased on the storage medium.

The operation of the data management method of the electronic file device according to this embodiment having the above-described configuration will be described.

FIG. 5 and FIG. 6 calculate the erase effect obtained by the batch erase process used in the data management method of the electronic file device in the present embodiment, display it on the display, and instruct the user to execute or cancel the batch erase. It is a flow chart which main control means 1 shows a processing procedure accepted.

First, when the user selects "Utility" in the "Registration", "Delete", and "Utility" headings on the confirmation screen shown on the CRT display 3 of this embodiment, the selected "Utility" is selected.
By selecting the "packing" heading with the headings blinking, the processing of the main routine as an electronic file device (not shown) that has been executed up to that point is stopped, and the program for the batch erasing procedure is entered. The program is executed.

When the batch erasing process routine of FIG. 5 is called, the process of the batch erasing process routine of steps S1 to S8 starts. The main control means 1 first activates the erasing effect calculation unit 111 in step S1, and calls the erasing effect calculation processing routine of steps S11 to S15 in FIG. 6 for calculating the erasing effect of collective erasing.

By calling the erasing effect calculation processing routine, the erasing effect calculating section 111 reads the management information from the management file 110 via the data recording / reproducing section 109 in step S11. In step S12, "1" or "0" of the erase flag 301 of the management information is checked, and regarding the management information corresponding to the data whose erase flag 301 is "1",
In step S13, the storage areas of the image information to be erased are accumulated. Delete flag 3 in step S12
If 01 is “0”, the process directly proceeds to step S14. In step S14, it is determined whether or not the reading of the management information has been completed.
If it is in the process of reading, the process returns to step S11 to repeatedly read the next management information. Step S
At 15, the cumulative value of the storage area of the data to be erased is divided by the total storage capacity of the rewritable optical disc 4 to calculate the ratio, which is passed to the main control means 1 as the erase effect of the batch erase.

The main control means 1 displays the erasing effect obtained from the erasing effect calculating section 111 in step S2 on the CRT display 3 via the display controlling section 104 and the display memory 103.
Displayed together with the confirmation screen shown in. This allows the user to know the effect of batch erasing on how much the reusable storage area will increase by batch erasing. In addition, the confirmation screen shown on the CRT display 3 of the present embodiment shows the contents of the “utility” superimposed on the “registration”, “erasure” and “utility” headings according to the development of the program when the “packing” heading is selected. Is expanded, but the "Confirm" heading blinks in step S2, and the packing effect is displayed in percentage.

In step S3, the user waits for the mouse 6 to select the "execute" heading or the "cancel" heading. Upon receiving a user instruction, step S4
Determines whether to execute or cancel the deletion. If the user instruction selects “cancel” for batch erasing, batch erasing is not executed and the process ends. If the user instruction selects "execute" for batch deletion, steps S5 to S8
By the routine shown in (1), the batch erasing is completed by the process of correcting the rewriting position of the management file 110 and the process of rewriting the data in the rewritable optical disk 4 to the pre-arranged state.

That is, in step S5, the management file 110
From this, a new management file (not shown) in which a region is separately set is created only for data corresponding to the management information whose erase flag 301 is "0". The format of the new management file is the same as that of the management file 110. In step S6, the management information is read from the new management file (not shown),
If the start address of the read management information does not match the next address of the management information, the start address is corrected to the value of the next address of the previous management information, and the corrected start address and the image information size are added to the next address. Correct to the value obtained by. If the erase flag 301 is "1" based on the management information of the management file 110 in step S7, data corresponding to the image information size 304 is read from the start address 303 from the rewritable optical disc 4 and a new management file (not shown) is read. ) According to the start address of the management information,
Rewrite on the rewritable optical disc 4. By executing the data transfer on the rewritable optical disc 4 shown in step S7 for all data, the rewritable optical disc 4 is transferred.
There is a reusable storage area for erased data.
In step S8, the management file 110 is replaced with the new management file created in steps S5 and S6, and the management information of the management file 110 and the rewritable optical disk 4 become the recorded contents in which unnecessary data is erased, and a batch is created. Finish erasing.

In this embodiment, when the user selects "packing" shown in FIG. 1 with the mouse 6, the rewritable optical disc 4 in the storage area is rewritable by collective erasing before executing the collective erasing process. The ratio is displayed on the CRT display 3 as an erasing effect by packing so that the user can recognize the erasing effect. The user refers to the erasing effect by packing and selects "execute" or "cancel" shown in FIG.

As described above, in this embodiment, the rewritable optical disk 4 for recording data such as image information, the scanner 2 for inputting / outputting the data to / from the rewritable optical disk 4 and instructing various controls, the keyboard. 5, a mouse 6 and the like, operation input means, a display means such as a CRT display 3 for displaying the data and various control information input to and output from the rewritable optical disk 4, the rewritable optical disk 4 and the operation input means And main control means 1 for controlling the display means
01 for registering the data in the rewritable optical disc 4, the data is sequentially written in the rewritable optical disc 4, and the management information for the data is written in the management file 110. When deleting the file, the management file 11
In the data management method of the electronic file device, which performs marking processing by a flag or the like corresponding to the management data of 0 corresponding to the data to be erased, and collectively performs the erasing processing from the rewritable optical disc 4, the main control The means 1 collectively erases data marked by a flag or the like based on the management information of the management file 110, and collectively erases data marked by the flag. The storage capacity at which the data is erased and rewritable is divided by the storage capacity of the entire rewritable optical disc 4 to obtain a ratio, and the erase effect by the erase is taken as a step S.
11 to step S15, which is an erasing effect calculator, and the value obtained by the erasing effect calculator is the CRT.
An erasing effect display section including a routine of step S2 for displaying on a display section such as the display 3, and a routine of steps S3 and S4 for giving an instruction to collectively erase unnecessary data after the erasing effect is displayed by the erasing effect display section. And an execution unit consisting of.

Therefore, when erasing the data sequentially stored in the rewritable optical disc 4 provided in the electronic file device, only the unnecessary data is marked on the data management information at the time of the erasing instruction, Since the data on the rewritable optical disc 4 is not erased, it is not necessary to perform the data justification process and the rearrangement of the management information that occur each time the erasure process is performed, and the erasing process is simplified, so that the required time is short. Become. Further, it becomes possible to restore the data in response to the reproduction request from the user. Therefore, the service of the electronic file device can be improved.

When executing the batch erasing of unnecessary data for which the marking processing on the management information is performed, the erasing effect by the batch erasing is displayed on the CRT display 3 before the execution. The erasing effect of erasing can be recognized. By recognizing the erasing effect by the batch erasing, even when a large amount of data processing handled by an electronic file device requires a long time, the user should recognize the effect and decide whether to perform the batch erasing. Since the decision can be made, dissatisfaction with the erase processing result is reduced.

Further, when the rewritable optical disk 4 cannot be registered due to lack of free space, refer to the capacity of the reusable storage area that can be estimated from the erasing effect displayed before the batch erasing process is executed. Then, it is possible to make a selection such that a new rewritable optical disc 4 is used, or a storage capacity for erasing data that has become unnecessary by batch erasing is reused.

By the way, in the above embodiment, the erasing effect calculating section for calculating the storage capacity at which the data subjected to the marking processing by the collective erasing section is erased and becomes writable again, with respect to the total storage capacity of the rewritable optical disc 4. Although a method of displaying a ratio as an erasing effect is used, in the case of implementing the present invention, the storage capacity of a storage area that can be reused by batch erasing or standardization that enables storage in a reusable storage area It is also possible to display the number of standard sheets of A4 size, etc., which have been set, and display the erasing effect of batch erasing. In the case of this type of embodiment, since the storage capacity in which the data subjected to the marking processing by the batch erasing unit is erased and can be rewritten is expressed by the standardized standard paper size, it can be used. It is useful for beginners who cannot judge the concept of free space that can be stored, because it can be judged by the standard paper size that has a large storage capacity.

However, in the above embodiment, the ratio of the storage capacity of the rewritable optical disk is divided by the storage capacity of the rewritable optical disk in which the marking-erased data is erased so that the data can be written again. This is an erasing effect due to erasing, and is always
You can check the available storage capacity. In particular, when the data is image information and the content density is high, there is a large error between the standardized standard paper size and the standard size, but in this case as well, it can be used properly. I can grasp the condition.

In the above embodiment, the case where the CRT display 3 is used as the display means has been described, but in the case of implementing the present invention, the CRT display 3 is used.
However, the liquid crystal display, plasma display and the like can be used.

In the above embodiment, the case where the mouse 6 is designated as the execution unit for instructing collective deletion of unnecessary data after the deletion effect is displayed by the deletion effect display unit has been described. In the case of carrying out, it suffices that a signal for instructing collective deletion of unnecessary data can be input from the operation input means.

[0044]

As described above, according to the present invention, when data is registered in a rewritable optical disc, the data is sequentially written in the rewritable optical disc and the management information for the data is written in a management file. In the case of erasing data, the data of the electronic file device that performs the marking process corresponding to the data to be erased in the management information of the management file and collectively performs the erasing process from the rewritable optical disc. In the management method, a batch erasing unit for collectively erasing the marking-processed data based on the management information of the management file,
An erasing effect calculation unit that calculates a storage capacity at which the marking processing data is erased by the collective erasing unit and is rewritable, an erasing effect display unit that displays a value obtained by the erasing effect calculation unit on the display unit, After the erasing effect is displayed by the erasing effect display unit, the main control unit includes an execution unit for instructing collective erasing of unnecessary data.

Therefore, in the case of executing the batch erasing of unnecessary data which has been marked on the management information,
Since the erasing effect is displayed on the display unit before the batch erasing of unnecessary data on the storage medium, the user can recognize the effect of the batch erasing. In addition, the user can select to execute or cancel batch deletion
The service efficiency of the electronic file device can be improved. In addition, by being able to recognize the erasing effect of this batch erasing, even if the batch erasing process of large-capacity data handled by an electronic file device requires a long time, the user should recognize the effect before performing the batch erasing. Since it is possible to determine whether or not to carry out the batch erasing process in a time period when the user does not input / output data, dissatisfaction with the result of the erasing process is reduced.

When the rewritable optical disk cannot be registered due to lack of free space, the capacity of the reusable storage area is referred to from the erasing effect displayed before the batch erasing process is executed. It is possible to select whether to use a new rewritable optical disk or to erase unnecessary data by batch erasing so that the storage capacity can be reused before use.

Further, when erasing the data sequentially stored in the rewritable optical disk, only the unnecessary data is marked on the management information of the data when the erasing is designated, and the data on the rewritable optical disk is marked. Since the data is not erased, there is no need for the data justification process and the rearrangement of the management information that occur each time the erasing process is performed, and the erasing process becomes simple and the required time is shortened.
Further, in response to a user's reproduction request, it is possible to restore the data designated to be erased.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a display example of an effect display when unnecessary data is collectively erased by using a data management method for an electronic file device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a data management method for an electronic file device according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing an example of a file configuration showing a relationship between a management file for performing data record management used in the data management method of the electronic file device and the data record according to the embodiment of the present invention.

FIG. 4 is a schematic diagram showing a format example of management information in a management file used in the data management method of the electronic file device according to the embodiment of the present invention.

FIG. 5 is a flowchart showing a batch erasing process used in the data management method of the electronic file device according to the embodiment of the present invention.

FIG. 6 is a flowchart for calculating an erasing effect used in the data management method of the electronic file device according to the embodiment of the present invention.

[Explanation of symbols]

 1 main control means 2 scanner 3 CRT display 4 rewritable optical disk 5 keyboard 6 mouse 101 system control unit 104 display control unit 105 image memory 109 data recording / playback unit 110 management file 111 erase effect calculation unit

Claims (3)

[Claims] 1. A rewritable optical disc for recording data,
Operation input means for inputting / outputting the data to / from the rewritable optical disk and instructing various controls, display means for displaying the data and various control information input / output to / from the rewritable optical disk, and the rewritable optical disk And a main control means for controlling the operation input means and the display means,
In the case of registering the data in the rewritable optical disk, the data is sequentially written in the rewritable optical disk, and the management information for the data is written in a management file. In a data management method of an electronic file device, which performs marking processing corresponding to the data to be erased in file management information, and collectively performs erasing processing from the rewritable optical disc, the main control means includes: A batch erasing unit that collectively erases the marking-processed data based on the management information of the management file, and an erasing effect calculation that calculates a storage capacity at which the marking-processed data is erased and rewritable. And an erasing effect that displays the value obtained by the erasing effect calculation section on the display section. A result display portion, after the erasing effect is displayed by the erasing effect display portion,
A data management method for an electronic file device, comprising: an execution unit for giving an instruction to collectively delete unnecessary data. 2. The erasing effect calculation unit divides a storage capacity in which the marking-processed data is erased by the batch erasing section and becomes writable again by a storage capacity of the entire rewritable optical disc to obtain a ratio. 2. The data management method for an electronic file device according to claim 1, wherein the effect ratio obtained by the erasure is obtained. 3. The erasing effect calculation unit expresses a storage capacity, in which data marked by the batch erasing unit is erased and rewritable, by a standardized standard paper size. The data management method for an electronic file device according to claim 1.