JP2008033860A - File processing apparatus, method and program, and backup apparatus, method and program - Google Patents

Abstract

To provide a file processing apparatus, method and program, and backup apparatus capable of generating a file information list of an optical disc in a short time.
A file processing apparatus for processing a file backed up on a removable optical disk, wherein when the optical disk is mounted on a first storage means using the optical disk as a storage medium, the optical disk becomes a backup source storage means. A determination unit for determining whether a file information list including an identifier for uniquely identifying a stored file and file attribute information is stored, and a file information list of a storage unit as a backup source are stored If it is determined that the file information list of the optical disk is generated using the file information list, and if it is determined that the file information list of the storage means of the backup source is not stored, the optical disk is searched for List generating means for generating a file information list.
[Selection] Figure 1

Description

  The present invention relates to a file processing apparatus, method and program, and backup apparatus, method and program.

  Conventionally, when a memory card is inserted, image data stored in the inserted memory card is searched, and an image information list (file information list) composed of file paths, attribute information, etc. of the image data is generated. A printer is known (see, for example, Patent Document 1). If a file information list is generated when a memory card is inserted, information such as a file list and attribute information can be acquired in a short time.

By the way, in the case of an optical disc such as a CD-R or DVD-R, if a file information list is generated when the optical disc is inserted, information such as a file path and attribute information is required as in the case of a memory card. Information can be acquired in a short time.
However, an optical disk with a physical head movement has a problem that it takes a long time to generate a file information list because the access speed is slower than that of a nonvolatile semiconductor memory.

JP 2006-92492 A

  The present invention was created in view of the above-described problems, and provides a file processing apparatus, method and program, and backup apparatus, method and program capable of generating a file information list of an optical disc in a short time. Objective.

(1) A file processing apparatus for achieving the above object is a file processing apparatus for processing a file that is backed up on a removable optical disk, the first storage means using the optical disk as a storage medium, When the optical disk is loaded in the first storage means, a file information list including an identifier for uniquely identifying the file stored in the backup storage means on the optical disk and attribute information of the file is stored. If the determination means determines that the file information list of the backup source storage means is stored, the file information list of the optical disc is generated using the file information list. And determining that the file information list of the storage means of the backup source is not stored If it and a first list generating means for generating a file information list of the optical disc by searching within the optical disc.
When a file stored in the backup source storage means is backed up to an optical disk, when the file information list is generated from the optical disk, the generated file information list has almost the same content as the file information list generated from the backup source storage means. Become. Therefore, when the file information list of the storage means of the backup source is stored on the optical disk, the file information list of the optical disk can be generated by using the stored file information list. If the file information list of the optical disk is generated using the file information list of the storage means of the backup source, the process of searching the optical disk is not required when generating the file information list of the optical disk. Can be generated.

(2) The identifier included in the file information list of the backup source storage unit may include a drive letter assigned to the backup source storage unit. The first list generation means may convert a drive letter included in the identifier of the file information list stored on the optical disc into a drive letter assigned to the first storage means. .
If the identifier included in the file information list of the backup source storage means includes a drive letter assigned to the backup source storage means, the drive letter assigned to the first storage means By converting to a letter, a file information list of the optical disc can be generated.

(3) A backup folder in which a file stored in the backup source storage unit is backed up may be created for each backup of the optical disc. You may further provide the virtual drive means which each handles the said folder created for every backup on the said optical disk as one virtual drive.
When the number of files that can be recognized per drive by the file processing apparatus is limited, it is possible to recognize more files than can be recognized per drive by treating one directory as one virtual drive.

(4) In the backup folder, a file information list of the backup source storage unit is backed up, and the identifier included in the file information list of the backup source storage unit is the backup source storage unit May include a drive letter assigned to. The first list generation means includes a virtual drive letter assigned to the folder in a drive letter included in the identifier of the file information list stored in the folder created for each backup on the optical disc. You may convert it to a drive letter.
If the identifier included in the file information list of the backup source storage means contains drive letters assigned to the backup source storage means, these drive letters are the virtual drives assigned to each folder. By converting to a letter, a file information list of each virtual drive can be generated. In addition, if a folder information list is stored in each directory, the file processing apparatus can use the file information list in the same procedure as that for a drive that is not a virtual drive.

  (5) You may further provide the printing means which prints the file memorize | stored in the said optical disk with which the said 1st memory | storage means is mounted | worn.

(6) A file processing method for achieving the above object is a file processing method for processing a file backed up on the optical disc using an electronic device including a first storage means using a removable optical disc as a storage medium. When the optical disk is loaded in the first storage means, an identifier for uniquely identifying the file stored in the backup storage means on the optical disk and attribute information of the file are included. A determination step for determining whether a file information list is stored, and the optical disc using the file information list stored in the optical disc when the determination step determines that the file information list is stored File information list is generated, and it is determined that the file information list is not stored. If the containing, a first list generation step of generating a file information list of the optical disc by searching within the optical disc.
According to the present invention, the file information list of the optical disc can be generated in a short time.

(7) A file processing program for achieving the above object functions as a file processing apparatus for processing an electronic device including a first storage unit using a removable optical disk as a storage medium, and processing a file backed up on the optical disk. An identifier for uniquely identifying a file stored in a backup source storage unit on the optical disc and an attribute of the file when the optical disc is loaded in the first storage unit Determining means for determining whether or not a file information list including information is stored; and when the determining means determines that the file information list is stored, the file information list stored on the optical disc is To generate a file information list of the optical disc, and If the information list is determined not to be stored to function the electronic device as a first list generating means for generating a file information list of the optical disc by searching within the optical disc.
According to the present invention, the file information list of the optical disc can be generated in a short time.

(8) A backup device for achieving the above object includes a first storage unit using a removable optical disk as a storage medium, a second storage unit using a removable nonvolatile semiconductor memory as the storage medium, When the non-volatile semiconductor memory is mounted on the second storage means, an identifier for uniquely identifying the file stored in the non-volatile semiconductor memory by searching the non-volatile semiconductor memory and the file A second list generating unit that generates a file information list including attribute information; and a backup unit that backs up the file stored in the nonvolatile semiconductor memory and the file information list to the optical disc.
When a file stored in the nonvolatile semiconductor memory is backed up to an optical disk, when the file information list is generated from the optical disk, the generated file information list has almost the same content as the file information list generated from the nonvolatile semiconductor memory. Therefore, when backing up a file in the nonvolatile semiconductor memory to the optical disk, if the file information list generated from the nonvolatile semiconductor memory is also backed up, the process of searching the optical disk when generating the file information list of the optical disk is performed. The file information list for the optical disc can be generated in a short time.

(9) The backup means creates a backup folder on the optical disk for each backup, and backs up the files stored in the nonvolatile semiconductor memory and the file information list of the nonvolatile semiconductor memory to the folder. May be.
When a backup folder is created on the optical disk for each backup, when the optical disk is accessed by a device that limits the number of files that can be recognized per drive, the folder is treated as a virtual drive, thereby making one drive You can recognize more files than you can recognize. In addition, by storing the folder information list in each directory, the device can use the file information list in the same procedure as in the case of a drive that is not a virtual drive.

(10) The identifier included in the file information list of the nonvolatile semiconductor memory may include a path for uniquely identifying the file in the nonvolatile semiconductor memory. The backup unit may back up files stored in the nonvolatile semiconductor memory while maintaining a directory structure of the nonvolatile semiconductor memory.
When the identifier includes a file path, when the directory structure of the nonvolatile semiconductor memory is maintained and backed up, the file information list of the optical disk is included in the identifier of the file information list of the nonvolatile semiconductor memory. It can be used without correcting the path.

(11) The identifier may include a drive letter assigned to the second storage unit. The backup means may back up the file information list of the nonvolatile semiconductor memory to the optical disk as it is without converting the drive letter of the second storage means included in the identifier.
According to the present invention, since the process of converting the drive letter is not required at the time of backup, the time required for backup can be shortened.

(12) A backup method for achieving the above object includes an electronic device including a first storage unit using a removable optical disk as a storage medium and a second storage unit using a removable nonvolatile semiconductor memory as a storage medium. A backup method using a device, wherein when the nonvolatile semiconductor memory is attached to the first storage means, a file stored in the nonvolatile semiconductor memory is searched by searching the nonvolatile semiconductor memory. A second list generation step of generating a file information list including an identifier for uniquely identifying the file and attribute information of the file; a file stored in the nonvolatile semiconductor memory; and the file information list. Backup stage to back up to.
According to the present invention, the file information list of the optical disc can be generated in a short time.

(13) A backup program for achieving the above object includes an electronic device including a first storage unit that uses a removable optical disk as a storage medium and a second storage unit that uses a removable nonvolatile semiconductor memory as a storage medium. An identifier for uniquely identifying a file stored in the non-volatile semiconductor memory by searching the non-volatile semiconductor memory when the non-volatile semiconductor memory is attached to the first storage means And a second list generation unit that generates a file information list including the file attribute information, and a backup unit that backs up the file stored in the nonvolatile semiconductor memory and the file information list to the optical disc Let
According to the present invention, the file information list of the optical disc can be generated in a short time.

The functions of the plurality of means provided in the present invention are realized by hardware resources whose functions are specified by the configuration itself, hardware resources whose functions are specified by a program, or a combination thereof. The functions of the plurality of means are not limited to those realized by hardware resources that are physically independent of each other.

Hereinafter, embodiments of the present invention will be described based on examples.
1. Configuration of File Processing Device FIG. 2 is a block diagram showing the configuration of a file processing device, a backup device, and a multifunction printer (MFP) 10 as an electronic device according to an embodiment of the present invention. The MFP 10 has a function of printing an image based on image data input from a card type flash memory 31, an optical disc 32, a PC (Personal Computer) (not shown), a portable phone, a PDA, a copying function, and a card type flash memory. And a data backup function from 31 to the optical disk 32. In this embodiment, the card type flash memory is referred to as a memory card. The memory card corresponds to “nonvolatile semiconductor memory” recited in the claims.

  The scan unit 15 includes an illumination unit 11, an image sensor 13, a scan processing unit 12, a carriage drive unit 14, and the like. The image sensor 13 outputs an electrical signal that is illuminated by the illuminating unit 11 and correlates with the density of an optical image of an original image formed on a light receiving surface by an imaging optical system (not shown). The scan processing unit 12 drives the image sensor 13 and digitizes an analog signal output from the image sensor 13 and outputs the digitized signal to the RAM 16. The carriage driving unit 14 moves the image sensor 13 or the imaging optical system perpendicular to the main scanning direction. Move back and forth. As a result, the image data read by the scan unit 15 is stored in the RAM 16.

  The print unit 25 as a printing unit includes an inkjet print head 23, a carriage driving unit 22, a paper feeding unit 24, a print control unit 21 for controlling these, and the like. Based on the print data stored in the RAM 16, the print control unit 21 causes the paper feeding unit 24 to convey the paper in a direction perpendicular to the moving direction axis of the print head 23, and causes the carriage driving unit 22 to perpendicularly intersect the paper conveyance direction. The print head 23 is moved back and forth, and ink is ejected from the print head 23 to form an image on the paper.

  The digital image processing unit 26 executes image processing such as decoding of JPEG image data, resolution conversion, unsharp processing, gradation correction, binarization, and color separation processing in cooperation with the CPU 18, and image data to be printed A dedicated circuit such as a DSP that generates print data from the printer.

  The memory card interface 30 as the second storage means is connected to the memory card 31 inserted from the card slot 33. The memory card interface 30 reads data from the memory card 31 and transfers the read data to the RAM 16. The memory card interface 30 writes the data transferred from the RAM 16 to the memory card 31.

  The optical disk interface 29 as the first storage means and the backup means reads data from the optical disk inserted into the disk slot 28 and transfers the read data to the RAM 16. The optical disk interface 29 writes the data transferred from the RAM 16 to the optical disk 32. Since only writable optical disks are targeted in this embodiment, the optical disk interface 29 has a configuration conforming to standards such as CD-RW, CD-R, DVD-RW, and DVD-RAM. In this embodiment, a CD-RW will be described as an example of an optical disk. In the following description, the term “CD” simply means CD-RW.

  The communication unit 20 is a communication interface for the control unit 19 to communicate with an external system such as a PC, a digital camera, a portable phone terminal, or a PDA. The communication unit 20 communicates with an external system through a LAN, the Internet, a USB, or the like. Note that an interface of an external storage medium such as the memory card 31 or CD may be configured as a device independent of the MFP 10 and connected to the MFP 10 via the communication unit 20.

The operation unit 27 is used for various operations for the user to operate the MFP 10, such as an LCD 27a (see FIG. 6) for displaying a menu, buttons for operating the menu, and instruction buttons for instructing printing or reading of an original. The operation buttons are provided.
The control unit 19 includes a RAM 16, a flash memory 17, and a CPU 18. The CPU 18 executes a control program stored in the flash memory 17 to control each unit of the MFP 10. Further, the control unit 19 executes the file processing program and the backup program to thereby execute the first storage unit, the determination unit, the first list generation unit, the virtual drive unit, the printing unit, the second storage unit, and the second storage unit. Function as a list generation unit and a backup unit. The flash memory 17 is a nonvolatile memory that stores various programs such as a control program and a file processing program. The RAM 16 is a volatile memory that temporarily stores image data and various programs input from the memory card interface 30, the communication unit 20, or the scan unit 15. Control programs, file processing programs, and the like may be stored in the flash memory 17 via a network from a remote server, or may be stored in the flash memory 17 via a computer-readable recording medium such as the memory card 31. May be.

2. File Information List FIG. 3 is a schematic diagram showing an example of a file information list. The file information list is a list including a full path of each file stored in the memory card or CD, attribute information of each file, and the like. The file information list is used to shorten the time required for counting the number of files stored in a memory card or CD, searching for a file that satisfies a specific condition, and acquiring file attribute information. The file information list is generated when a memory card or CD is inserted. The configuration of the file information list will be described below. In the present embodiment, a description will be given taking a JPEG file as an example. The file may be an image file in a format other than JPEG, or an arbitrary file other than an image file.

The file information list includes one header part and 999 image list data parts.
The header part includes fields such as a list version indicating the version of the file information list and the number of JPEG files indicating the total number of stored JPEG files.

  The image list data portion includes a JPEG file name, extension, full path, shooting date, JPEG file generation time, JPEG file archive attribute, and the number of pixels representing the height of the main image stored in the JPEG file. , The number of pixels representing the width of the main image, the number of pixels representing the height of the thumbnail image stored in the JPEG file, and the number of pixels representing the width of the thumbnail image. Hereinafter, the full path will be described. The full path corresponds to an “identifier” described in the claims. Information other than the full path in the image list data portion corresponds to “attribute information” described in the claims.

  FIG. 4A is a schematic diagram illustrating an example of a full path. Note that “¥ DCIM ¥ 100MakerA ¥ PICT0005.jpg”, which is a part obtained by removing the drive letter from the full path, may be used as an identifier. This is because the drive letter may be added to the head during processing.

The number of image list data portions is fixed to 999 regardless of the number of files stored in the memory card. Even if the number of JPEG files stored in the memory card is less than 999, the file information list contains 999. Image list data portions are created.
The information included in the header part and the image list data part is a design item that can be selected as appropriate, and may include, for example, the full path of the frame image to be combined with the main image.

3. Processing of File Processing Device First, processing for generating a file information list when a memory card is inserted into the memory card interface 30 will be described.
FIG. 5 is a flowchart showing a flow of processing for generating a file information list.
In S105, the control unit 19 monitors the memory card interface 30 at regular time intervals. When a memory card is inserted into the memory card interface 30, the process proceeds to S110.
In S110, the control unit 19 generates an image list data part of the file information list of the memory card. Specifically, the control unit 19 searches for a file by sequentially tracing the directory from the root directory of the inserted memory card, and if a file is found, an identifier or attribute such as a file name or a full path from the FAT (File Allocation Tables). Information is acquired, the file is opened, attribute information described in the header is acquired, and an image list data portion of the file including the acquired identifier and attribute information is added to the file information list. At this time, if the found file is a JPEG file, the control unit 19 adds 1 to the variable for counting the number of JPEG files. The attribute information may be attribute information acquired from the FAT or attribute information described in the header.

  In S115, the control unit 19 generates a header part of the file information list of the memory card. In this generation, the value of the variable for counting the number of JPEG files described above is stored in the JPEG file number field of the header portion.

Next, a predetermined process executed based on the file information list will be described. Here, the file information list of the memory card will be described as an example, but the same applies to the file information list of the CD.
FIG. 6A is a schematic diagram for explaining an operation of selecting a file to be printed. When the user operates the operation unit 27 to select a print mode, the control unit 19 acquires a thumbnail image from the JPEG file stored in the memory card and displays it on the LCD 27a. The user operates the left button 27d and the right button 27e of the operation unit 27 to display the thumbnail image of the target image, and sets the number of copies by pressing the upper button 27b and the lower button 27c in the displayed state. After setting the number of copies, each image with the number of copies set can be printed by pressing a print button (not shown). In this display, the control unit 19 acquires the full path of the JPEG file from the file information list and acquires a thumbnail image. If there is no file information list, the control unit 19 must search the memory card and list JPEG files after the print mode is selected. On the other hand, if a file information list is created, it is not necessary to list JPEG files after the print mode is selected, and thumbnail images to be displayed can be acquired in a short time.

  In this display, the control unit 19 does not display the thumbnail images of all the image files, but displays only the thumbnail images of the images satisfying the specific condition. Specifically, only thumbnail images whose main image size is a printable size are displayed. This is because the maximum printable size is determined for the printer, and a size exceeding that cannot be printed. The control unit 19 refers to the height and width of the main image stored in the image list data part of the file information list to determine whether it is a printable size, and the printable size main image is stored. Only the thumbnail images stored in the existing file. In this way, the control unit 19 acquires the size by referring to the file information list instead of opening each file one by one after the print mode is selected and acquiring the size. You can search at high speed.

  FIG. 6B is a schematic diagram illustrating a screen for the user to narrow down images to be printed by date. When the user operates the operation unit 27 to select the year and month, the control unit 19 acquires thumbnail images from the files photographed in the selected year and month, and sequentially displays them on the LCD 27a. The control unit 19 refers to the shooting date stored in the image list data portion of the file information list to determine whether the selected date falls, and displays only the thumbnail images stored in the corresponding file. To do. In this way, when the year and month are selected, the control unit 19 does not open each file one by one and acquires the shooting date, but acquires the shooting date by referring to the file information list. You can search for files taken in the year and month at high speed.

  In addition, when a thumbnail image is selected, the control unit 19 prints the size of the main image enlarged / reduced to a size corresponding to the size of the print medium. At this time, the control unit 19 may acquire the size of the main image from the file information list. The predetermined processing based on the file information list is not limited to the above-described processing, and the file information list can be used for arbitrary processing as necessary.

Next, a process for backing up a file stored in the memory card to a CD will be described.
FIG. 7 is a data flow diagram showing the flow of data in the backup process, and FIG. 8 is a flowchart showing the flow of the backup process. This process is started when the user inserts a backup source memory card into the card slot 33 and inserts a backup destination CD into the disk slot 28 to perform an operation for instructing backup.

In S205, the control unit 19 acquires the file information list generated when the memory card is inserted from the RAM 16, and creates a file storing the acquired file information list. In this embodiment, this file is called a file information file.
In S210, the control unit 19 determines whether one or more files are stored in the memory card. The control unit 19 proceeds to S215 if one or more files are stored, and ends the process if the file does not exist.

In S215, the control unit 19 creates a backup list. The backup list is a list of full paths of all files stored in the memory card.
In S220, the control unit 19 adds the full path of the file information file generated in S205 to the backup list. As a result, the file information file is also set as a backup target.

In S225, the control unit 19 adds up the data amounts of all the files included in the backup list, and determines whether the total value is equal to or less than the free capacity of the CD. If the free space is less than the free space of the CD, the control unit 19 proceeds to S230. If the free space is exceeded, the control unit 19 notifies the user to that effect and ends the processing.
In S230, the control unit 19 refers to the backup list and backs up the file on the memory card to the CD. At this time, the control unit 19 newly creates a backup folder on the CD, and backs up the created folder while maintaining the directory structure of the memory card. An example of the directory structure of the memory card and the directory structure of the CD after backup is shown below.

  FIG. 9 is a schematic diagram showing an example of a directory structure of a memory card and an example of a directory structure of a CD. “Epbkinf.dat” in the figure is a file information file. In the example shown in the figure, the CD has already been backed up twice, and this time is the third backup. Folders [001] and [002] created immediately under the CD root directory are folders created by past backups. In this case, in the current backup, a folder [003] is created immediately under the root directory, and the memory card files are backed up to the [003] folder while maintaining the directory structure of the memory card as shown in the figure.

Next, processing of the MFP 10 when a CD is inserted will be described. The CD here may be either a backup CD that has been backed up as described above, or a CD in which a file is stored in another device such as a PC in addition to the backup CD.
FIG. 1 is a flowchart showing a processing flow of the file processing apparatus when a CD is inserted. This process is started when a CD is inserted into the optical disk interface 29.

In S305, the control unit 19 determines whether the inserted CD is a backup CD. If “epbkinf.dat” exists on the CD, the control unit 19 determines that the backup CD is a backup CD, and proceeds to S310. If not, the control unit 19 proceeds to S325.
In S310, the control unit 19 determines whether the version of the file information list stored in the file information file is a valid version. Specifically, for example, the control unit 19 holds valid version information in the flash memory 17, and determines whether the version is valid by comparing the list version of the file information list with the information. The control unit 19 proceeds to S315 if the version is valid, and proceeds to S325 if the version is invalid.

  In S315, the control unit 19 converts each backup folder generated immediately below the root directory of the backup CD into a virtual drive. The virtual drive is realized by the file system program executed by the control unit 19 handling each backup folder as one drive. An example of virtual drive is shown below.

  FIG. 10A is a schematic diagram showing the drive configuration of the MFP 10 and the directory configuration of the backup CD, and FIG. 10B shows the drive configuration recognized by the file system. Virtual drive [Q:] is a virtual drive of folder [001], and virtual drive [R:] is a virtual drive of folder [002]. Further, the virtual drive [S:] is a virtual drive of the folder [003].

  The reason for making each backup folder a virtual drive in this way is that the number of files that the MFP 10 can recognize from one drive is limited to 999. By making each backup folder a virtual drive, even if 1000 or more files are stored on the CD, if the number of files per backup folder is limited to 999 or less, all 1000 or more files can be recognized. Can do.

In S320, the control unit 19 reads a file information list from the file information file stored in the virtual drive for each virtual drive, and generates a file information list for the virtual drive. An example of generating a file information list is shown below.
FIG. 4B is a schematic diagram showing a full path included in the file information list of the virtual drive [S:] generated from the file information list. FIG. 4A is a schematic diagram showing a full path included in the file information list of the memory card. As shown in FIG. 4A, the full path of the file information list includes [A:] that is a drive letter assigned to the memory card interface 30. Therefore, if the full path of the read file information list is used as it is, it should access the CD but access the memory card. Therefore, the control unit 19 converts the drive letter [A:] in the read file information list into [S:] as shown in FIG.

  As described above, since the directory structure of the memory card is backed up in the backup folder, the portion below the drive letter of each full path can be used without modification. Therefore, the file information list of each virtual drive can be generated by reading the file information list from the file information file stored in each backup folder and converting the full path drive letter stored in the read file information list. .

In S325, the control unit 19 creates a file information list. Since this process is substantially the same as the process of creating the file information list when the memory card is inserted, detailed description thereof is omitted.
According to the MFP 10 according to the embodiment of the present invention described above, when backing up a file on a memory card to a CD, the memory card file information list is also backed up. If the attached CD is a backup CD, the backup is performed. Since the CD file information list is generated using the file information list stored in the CD, the CD file information list can be generated in a short time.

  Also, according to the MFP 10, since the file information list of the CD is generated using the file information list of the memory card, the attribute information described in the header is opened by opening each file when generating the CD file information list. There is no need to get. The process of opening a file is a process that takes time. Therefore, according to the present embodiment, when the attribute information described in the header needs to be included in the file information list, the time required for generating the file information list is particularly remarkably shortened.

  In this embodiment, when the backup CD is inserted, the drive letter included in the full path of the file information list stored in the backup CD is converted into the drive letter of the virtual drive. The conversion may be performed not when the backup CD is inserted but when a predetermined process needs to be executed.

  In this embodiment, the file information list generated from the memory card is backed up as it is on the CD when backing up, but the drive letter assigned to the optical disk interface 29 is fixed and the directory is a virtual drive. If not, the drive letter included in the full path may be converted to the drive letter of the optical disk interface 29 before backup. Thus, the file information list stored in the backup CD can be used as it is without changing the drive letter.

Further, in this embodiment, the case where backup is performed while maintaining the directory structure of the memory card has been described as an example. However, if it is clear that the file names are not duplicated, all files may be stored directly under the backup folder. Good.
In the present invention, the backup folder of the CD is made a virtual drive. However, if the total number of files stored on the CD is 999 or less, it is not always necessary to make a virtual drive.

  In this embodiment, the MFP 10 is described as an example of the file processing apparatus. However, the file processing apparatus may be a PC including the optical disk interface 29. For example, when referring to a backup CD backed up by the MFP 10 on the PC, the PC may generate a file information list of the CD using the file information list stored in the backup CD. Similarly, the backup device may be configured by a PC.

  Further, the present invention is not limited to the above-described embodiments, and can be applied to various embodiments without departing from the gist thereof.

The flowchart which concerns on one Example of this invention. The block diagram of the file processing apparatus which concerns on one Example of this invention. The schematic diagram of the file information list which concerns on one Example of this invention. (A) And (B) is a schematic diagram which concerns on one Example of this invention. The flowchart which concerns on one Example of this invention. (A) And (B) is a schematic diagram which concerns on one Example of this invention. The data flow figure concerning one example of the present invention. The flowchart which concerns on one Example of this invention. The schematic diagram which concerns on one Example of this invention. The schematic diagram which concerns on one Example of this invention.

Explanation of symbols

10 multifunction printer (file processing device, backup device), 19 control unit (first storage means, determination means, first list generation means, virtual drive means, printing means, second storage means, second List generating means, backup means), 25 print unit (printing means), 29 optical disk interface (first storage means, backup means), 30 memory card interface (second storage means), 31 memory card (nonvolatile semiconductor memory) , 32 optical disc

Claims (13)

A file processing device for processing files backed up on a removable optical disk,
First storage means using the optical disc as a storage medium;
When the optical disk is loaded in the first storage means, a file information list including an identifier for uniquely identifying a file stored in the backup storage means on the optical disk and attribute information of the file is provided. Determining means for determining whether or not it is stored;
When the determination means determines that the file information list of the backup source storage means is stored, the file information list of the optical disk is generated using the file information list, and the file of the backup source storage means First list generating means for searching the optical disc and generating a file information list of the optical disc when it is determined that an information list is not stored;
A file processing apparatus comprising: The identifier included in the file information list of the backup source storage means includes a drive letter assigned to the backup source storage means,
2. The first list generation means converts a drive letter included in the identifier of the file information list stored in the optical disc into a drive letter assigned to the first storage means. The file processing apparatus described in 1. The optical disc has a backup folder in which a file stored in the backup source storage means is backed up for each backup,
The file processing apparatus according to claim 1, further comprising a virtual drive unit that handles each of the folders created for each backup on the optical disc as a single virtual drive. In the backup folder, a file information list of the backup source storage unit is backed up, and the identifier included in the file information list of the backup source storage unit is assigned to the backup source storage unit. Including drive letters
The first list generation means includes a virtual drive letter assigned to the folder in a drive letter included in the identifier of the file information list stored in the folder created for each backup on the optical disc. The file processing apparatus according to claim 3, wherein the file processing apparatus converts the drive letter.   The file processing apparatus according to claim 1, further comprising a printing unit that prints a file stored on the optical disc mounted on the first storage unit. A file processing method for processing a file backed up on the optical disk using an electronic device comprising first storage means using a detachable optical disk as a storage medium,
When the optical disk is loaded in the first storage means, a file information list including an identifier for uniquely identifying a file stored in the backup storage means on the optical disk and attribute information of the file is provided. A determination stage for determining whether it is stored;
If it is determined in the determination step that the file information list is stored, the file information list of the optical disc is generated using the file information list stored in the optical disc, and the file information list is stored. A first list generating step of searching the optical disc and generating a file information list of the optical disc if it is determined that the
File processing method. A file processing program that causes an electronic device including a first storage unit that uses a removable optical disk as a storage medium to function as a file processing device that processes files backed up on the optical disk,
When the optical disk is loaded in the first storage means, a file information list including an identifier for uniquely identifying a file stored in the backup storage means on the optical disk and attribute information of the file is provided. Determining means for determining whether or not it is stored;
If the determination means determines that the file information list is stored, the file information list of the optical disc is generated using the file information list stored on the optical disc, and the file information list is stored. A file processing program for causing the electronic device to function as first list generation means for searching the optical disc and generating a file information list of the optical disc when it is determined that the electronic device is not found. First storage means using a removable optical disk as a storage medium;
Second storage means using a detachable nonvolatile semiconductor memory as a storage medium;
When the non-volatile semiconductor memory is attached to the second storage means, an identifier for uniquely identifying the file stored in the non-volatile semiconductor memory by searching the non-volatile semiconductor memory and the file Second list generation means for generating a file information list including the attribute information of
Backup means for backing up the file stored in the nonvolatile semiconductor memory and the file information list to the optical disc;
A backup device comprising:   9. The backup unit creates a backup folder on the optical disk for each backup, and backs up files stored in the nonvolatile semiconductor memory and a file information list of the nonvolatile semiconductor memory to the folder. The backup device described in 1. The identifier included in the file information list of the nonvolatile semiconductor memory includes a path for uniquely identifying the file in the nonvolatile semiconductor memory,
10. The backup device according to claim 8, wherein the backup unit backs up a file stored in the nonvolatile semiconductor memory while maintaining a directory configuration of the nonvolatile semiconductor memory. The identifier includes a drive letter assigned to the second storage means;
11. The backup means backs up the file information list of the non-volatile semiconductor memory to the optical disk as it is without converting the drive letter of the second storage means included in the identifier. The backup device described in 1. A backup method using an electronic device comprising first storage means using a removable optical disk as a storage medium and second storage means using a removable nonvolatile semiconductor memory as a storage medium,
When the nonvolatile semiconductor memory is attached to the first storage means, an identifier for searching the nonvolatile semiconductor memory and uniquely identifying the file stored in the nonvolatile semiconductor memory and the file A second list generation step for generating a file information list including the attribute information of
A backup step of backing up the file stored in the nonvolatile semiconductor memory and the file information list to the optical disc;
Including backup methods. An electronic apparatus comprising: a first storage unit using a removable optical disk as a storage medium; and a second storage unit using a removable nonvolatile semiconductor memory as a storage medium.
When the nonvolatile semiconductor memory is attached to the first storage means, an identifier for searching the nonvolatile semiconductor memory and uniquely identifying the file stored in the nonvolatile semiconductor memory and the file Second list generation means for generating a file information list including the attribute information of
A backup program for causing a file stored in the nonvolatile semiconductor memory and the file information list to function as backup means for backing up to the optical disc.

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