JPH02297291A - Image data input/output system - Google Patents

Abstract

PURPOSE:To change the file name of an image file in an optical disk and to erase the image file already registered by generating a directory image in which the content of a directory part is substituted based on registration data in an extension directory part. CONSTITUTION:An image input/output controller 13 makes an optical disk device 11 send data in the directory part 16 and the extension directory part 18 to an analyzer 14. The directory part 18 is comprised of a new pair of file name and logic number. The analyzer 14 substitutes a new file name for the one corresponding to the logic number of the directory part 18 out of obtained file names in the directory part 16, then, generates a new directory image 19. The image 19 is transferred to a directory information device 12, and the start address of each image file is found. As a result, the file name can be rewritten observing from the controller 13, or the image file can be erased.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an image data input/output system using a write-once optical disc device.

[Conventional technology]

FIG. 3 is a block diagram showing a conventional image data input/output system. In the figure, reference numeral 11 denotes a write-once optical disc device (hereinafter referred to as an optical disc device) that records data once in a certain area' of the optical disc 15 and reads recorded data.An example of its specific configuration is as follows. , Mitsubishi Electric Skill Vo1.62゜・7,198B, P, 6. P,
It is described in detail in 18 etc. 12 is from the data in the directory section 16 input from the optical disk device 11,
An image input/output control device 13 reads out the corresponding image file from the optical disk 15 according to the physical address obtained from the directory information device 12. It is. The directory information device 12 and the image input/output control device 13 are realized by a control section (main body) of an image filing device, a workstation, or the like. FIG. 4 shows the directory section 16 on the optical disc 15.
FIG. In the figure, 16 is a directory section in which file names are sequentially registered, 17 is an image data section that can record a large number of image files, and the size of one image file in the image data section 17 is constant (=V). In addition, each image file is stored in each area in which the file name of the directory section 16 is registered.
It corresponds to 1:1. Next, the operation will be explained. The image output control device 13 causes the optical disk device 11 to output the data in the directory section 16 at an appropriate time. This data is input to the directory information device 12. Then, the directory information device 12 generates a physical address where the image file corresponding to each file name is recorded from the address where each file name is registered. Since the size of the image file is constant, the start address of each image file is Pj=P+ +(j-1)xV (j□1~n)
−(1) can be calculated. Here, Pj is the start address of the image file itself or a value equivalent to it. When the image input/output control device 13 wants to input an image file with a certain file name, it searches for the corresponding file name held in the directory information device 12. Then, a start address Pj corresponding to the desired file name is obtained. Therefore, this starting address pj
The image file on the optical disc 15 is extracted from the optical disc device 11 from the optical disc device 11 .

[Problem to be solved by the invention]

Since the conventional image data input/output system is configured as described above, on the optical disk 15 loaded in the write-once optical disk device 11, each area in the directory section 16 where the file name is registered and the image data section 17 are separated. There is a one-to-one correspondence between image files, and there are problems in that the file name of an image file cannot be rewritten, and an image file that has been registered cannot be deleted. This invention was made to solve the above-mentioned problems, and it is possible to change the file name of an image file, and
The object of the present invention is to obtain an image data input/output system that can erase registered image files.

[Means to solve the problem]

The image data input/output system according to the present invention introduces an extended directory section of the optical disk in addition to an optical disk device, a directory information device, and an image input/output control device. The system is equipped with a directory analysis device that replaces file names included in data imported from the department with new file names.

[For use]

The directory analysis device of this invention introduces a directory part and an extended directory part, and replaces a file name corresponding to the index information of the extended directory part in the directory part with a new file name corresponding to the index information. Create a bulev triimage and output it to the directory information device.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, in addition to the conventional configuration shown in Figure 3, the image data input/output system includes a directory analysis/device 1.
4 are provided. FIG. 2 is a relationship diagram showing the relationship between the directory section 16 etc. on the optical disc 15 and the directory image 19 in the directory analysis device 14. Next, the operation will be explained. The image input/output control device 13 causes the optical disk device 11 to output the data in the directory section 16 and the extended directory section 18 at an appropriate time. These data are stored in directory analysis device 1.
Enter 4. The extended directory section 18 is composed of a new set of file celebrity logical numbers (hereinafter referred to as logical numbers). Here, the logical column is, for example, the serial number of the area in the directory section 16 in which the file name is stored (the i-th area is i as the logical column). Directory analysis device 1
4 is a directory section 16 obtained from the optical disk device 11
A new directory image 19 is created by replacing the file names corresponding to the logical level of the extended directory section 18 with new file names corresponding to the logical level. In the example shown in FIG. 2, the first logical magnetic field registered in the extended directory section 18 is "2" and the corresponding new file name is file name l, so the second logical field in the directory section 16 is "2". Replace file name 2 registered in file name 2 with file name 2. Next, the second registered logical fish is "i", and "6 Delete" is registered as the corresponding new file name, so the i-th registered file name i in the directory section 16 is is replaced with "erase". These processes are repeated as many times as the number registered in the extended directory section 18 to create a directory image 19. Then, this directory image 19 is transferred to the directory information device 12. The directory information device 12 performs the same operation as in the conventional case to obtain the start address Pj of each image file.As described above, from the perspective of the image input/output control device 13,
It looks like the file name has been rewritten or the image file has been deleted. For example, when the image input/output control device 13 searches for file name l, image file 2
The start address P2 is obtained, and the image file 2 can be extracted. Further, when the file name i is searched, since it does not exist in the directory image 19 of the directory information device 12, it can be recognized that it has been deleted. Note that when changing the file name, the image input/output control device 13 obtains a logical block corresponding to the file name before the change from the directory information device 12, and stores the new file name in the empty area of the extended directory section 18. All you have to do is register the information and the logic. Alternatively, the image input/output control device 13 provides the file name before change and the new file name to the directory information device 12, and the directory information device 12 or the directory analysis device 14 sends a logical file name corresponding to the file name before change. may be determined and registered in the extended directory section 18 together with a new file name. Further, in the above embodiment, the case of an image data input/output system has been described, but the present invention can be similarly applied to any system that handles files with file names. and,
The directory analysis device 11ffi14 can be realized by either a hardware circuit or software.

【Effect of the invention】

As described above, according to the present invention, the image data input/output system is configured such that the directory analysis device creates a file with the contents of the directory section replaced based on the data registered in the extended directory section. This has the advantage of being able to change the file name of an image file on an optical disc loaded in a write-once optical disc device, and also allowing registered image files to be deleted.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an image data output system according to an embodiment of the present invention, FIG. 2 is a relationship diagram showing the relationship between a directory section, etc. on an optical disk and a directory image, and FIG. 3 is a diagram showing a conventional image data FIG. 4 is a configuration diagram showing the input/output system. FIG. 4 is a relationship diagram showing the relationship between the directory section and the image data section in a conventional optical disc. 11 is a write-once optical disk device, 12 is a directory information device, 13 is an image input/output control device, 14 is a directory analysis device, 15 is an optical disk, 16 is a directory section,
17 is an image data section, 18 is an extended library section, and 9 is a directory image. In the figures, the same reference numerals indicate the same or equivalent parts. Figure Figure 16 F chopsticks left 1) also DI7: &(tF3@l5 19 day left °noimeshi

Claims (1)

[Claims] A directory section in which file names corresponding to each of a series of image files are registered, and an extended directory in which a new file name corresponding to the image file and index information for associating this new file name with the file name are registered. a write-once optical disc device, on which is mounted an optical disc divided into an image data part and an image data part in which the series of image files are recorded, and which records data on the optical disc and reads data recorded on the optical disc; The new file name and index information registered in the extended directory section are introduced via the write-once optical disc device, and the file name output from the directory section corresponding to this index information is changed to the new file name. a directory analysis device that creates a new directory image by replacing the directory image with the directory image; a directory information device that introduces the directory image and creates an address on the optical disk of the image file corresponding to each file name in the directory image; An image data input/output system comprising: an image input/output control device that reads out the desired image file via the write-once optical disk device according to the address input from the directory information device.