JP5511491B2 - Information recording apparatus, file management method, and file management program - Google Patents

Description

  The present invention relates to an information recording apparatus, a file management method, and a file management program for recording data as a file according to a predetermined recording rule, and in particular, an image obtained by photographing a subject with an imaging apparatus such as a digital camera. The present invention relates to an information recording apparatus, a file management method, and a file management program for managing a directory and a file in a file configuration in which data or the like is recorded according to a predetermined recording rule.

  In recent years, with the development of digital technology and the like, imaging devices such as digital cameras that electronically process image data obtained as a result of photographing a subject have become widespread. In such an imaging apparatus, a subject image representing a subject that has passed through a photographing lens is guided to a solid-state imaging device such as a CCD (Charge Coupled Device), and the subject image is converted into an electrical signal and output as an image signal. .

  In the image processing apparatus, various image processes are performed on the image signal to obtain image data. Thereafter, finally, the image data is stored as an image file in a recording medium such as a memory card.

  As a standard for managing image files on a recording medium in an imaging apparatus such as a digital camera, there is a DCF (JEIDA standard: Design ruFor for Camera File System) standard that is a camera file system standard. At present, this DCF standard is mainstream. This DCF standard is one of the predetermined recording rules.

  When video data is recorded as a video file on a recording medium, standards such as SD-Video and AVCHD are widely known as standards for managing video files on the recording medium.

  FIG. 18 is a diagram illustrating an example of a DCF standard file configuration used in an imaging apparatus including a conventional information recording apparatus.

  Referring to FIG. 18, a directory 201 having a directory name “DCIM” immediately below root directory (Root) 200 is called a DCF image root directory (hereinafter, this directory is also called a DCIM (DigitalL Camera Images) directory).

  Then, a plurality of directories (hereinafter referred to as DCF directories) 202 to 204 for storing DCF objects (hereinafter also referred to as DCF files) 205 to 213 such as image files are generated in the DCIM directory 201.

  The names of the DCF directories 202 to 204 (hereinafter referred to as DCF directory names) are defined as follows. The DCF directory name (directory identification code) is 8 characters, and the first to third characters are numbers 100 to 999 (note that numbers 000 to 099 are not used). Then, the first to third characters are called directory numbers. The fourth to eighth characters are free characters, and characters can be freely assigned.

  The names of the DCF files 205 to 213 (hereinafter referred to as DCF file names) are defined as follows. The DCF file name (file identification code) is 8 characters, and the first to fourth characters are free characters and can be freely assigned. The fifth to eighth characters are numbers 0001 to 9999. Four characters of the fifth to eighth characters are called a file number.

  In normal shooting (for example, single shooting or self-timer shooting), for example, IMG — 0001.01 is stored in the DCF directory directory 202 indicated by 900AAAAA. JPG-IMG_9999. Up to 9999 image files (DCF files) up to JPG can be stored, and after recording the maximum file number, a new DCF directory indicated by 901AAAAA (not shown in FIG. 18) with a continuous directory number is created. .

  Thus, in the DCF standard, numbered DCF directories 202 to 204 are created in a recording medium, and image files with file numbers are stored in the DCF directories 202 to 204 directories. It is prescribed.

  There is known a specification in which directory numbers are initialized when a recording medium is exchanged in an imaging apparatus such as a digital camera in assigning directory numbers.

  In addition, when the imaging device such as a digital camera records the directory number of the recording medium before replacement, and the new recording medium is mounted on the imaging device, the directory number of the new recording medium continues after the recorded directory number. The specifications to set are known.

  However, as described above, in the DCF standard, an image file having a directory number of 999 and a file number of 9999 or more and a DCF directory cannot be created.

  For this reason, there occurs a phenomenon that a new image file or a new DCF directory cannot be generated even though the recording medium is not actually in a memory full state.

  Therefore, when the directory number and file number reach the upper limit, the recording medium is initialized once and the numbers assigned to the DCF directory name and image file name are reset in order to continue shooting.

  However, once the recording medium is initialized, before the recording medium is initialized, various information including the image file recorded on the recording medium is copied to another recording medium, and then the recording medium is initialized. There is a need to do. For this reason, it is troublesome to initialize the recording medium.

  In addition, if there is no environment for copying various types of information to other recording media, there is no other way but to give up shooting or erase various types of recorded information without backing up.

  In order to eliminate such a point, a directory number and a file number which are not used are searched by analyzing a recorded file structure. There is a technique in which an image file is recorded using a directory number and a file number that are not used.

  However, when a recorded image file is played back, the order of the image file to be played back is different from the order of the captured image information as a result of playback from the directory number and the file number having the smallest number. become. That is, there is a problem that the time series is broken during reproduction.

  In order to eliminate such inconvenience, the number of files that can be created on a recording medium is calculated based on the image file storage standard. Here, the number of recordable sheets (number of recordable files) that can be recorded on the recording medium is calculated based on the remaining capacity of the recording medium. Then, the number of files that can be created and the number of files that can be recorded are compared, and the smaller one is displayed as the number of shootable images. Further, a warning to that effect (that is, the number of images that can be shot) is displayed, and a countermeasure is displayed (for example, see Patent Document 1).

  As the above-mentioned countermeasures, for example, there are a method of reassigning directory numbers from the initial value in ascending order or a method of changing the DCF directory name.

  In addition, the following method is known as a method for avoiding the problem that the time series collapses during reproduction. The missing file number and directory number are deleted by the user after shooting. Therefore, the file numbers and directory numbers existing on the recording medium are sorted, and the file numbers are reassigned in the sorted order to eliminate missing numbers.

  As a result, as a result, an empty area is secured for the maximum value on the file system by the number of missing file numbers and directory numbers, and it is possible to continue shooting.

JP 2003-158645 A

  As described above, there is known an imaging apparatus including a conventional information recording apparatus that calculates the remaining capacity of a recording medium in which an image file is stored. In this imaging apparatus, the remaining recordable number of recording media is obtained on the basis of the capacity of the image file obtained in accordance with the shooting, and is displayed and warned on the external display apparatus.

  As described above, there is a DCF standard as one of the standards for recorded image files. In the DCF standard, a folder with a number is created in a recording medium, and an image file with a file number is stored in the folder.

  Furthermore, when assigning directory numbers, as described above, there is a specification for initializing directory numbers by exchanging recording media. Also, a specification in which the directory number of the recording medium before replacement is recorded by the information recording device, and when a new recording medium is mounted on the information recording device, the directory number is set continuously to the recorded directory number. There is.

  However, when storing an image file that conforms to the DCF standard in the information recording apparatus, as described above, there is a standard (restriction) that a directory having a maximum directory number cannot be created.

  That is, when the directory number in one recording medium reaches the maximum value, image files cannot be created more than the number of image files that can be created in the folder.

  On the other hand, as the capacity of the recording medium increases, the number of directories created in one recording medium increases. In addition, the user can operate the folder number in the recording medium by using a personal computer (PC). Taking these points into consideration, the imaging operation provided by the imaging apparatus including the information recording apparatus is limited by the restriction that a directory having a maximum directory number cannot be created despite the remaining capacity of the recording medium. There is a problem that a situation that cannot be performed occurs.

  Further, in the conventional information recording apparatus, only when the creation of the image file becomes impossible, only a warning to that effect is given, and the user can know in advance whether the creation of the image file is impossible. Can not.

  In addition, the imaging device main body (imaging device alone) does not have a function for dealing with the inability to create an image file, and as a result, recording of shooting can be performed using a recording medium. There is a problem of disappearing.

  On the other hand, as described above, it takes a lot of time to sort the file numbers and directory numbers and perform the process of renaming the file numbers and directory numbers (renaming process). Therefore, when an imaging apparatus such as a digital camera operates with a rechargeable battery having a small capacity, it is difficult to perform the above renaming process over the entire recording medium in consideration of the capacity of the rechargeable battery. There is a point.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an information recording apparatus and file management that can prevent an unrecordable state from suddenly occurring due to the inability to create an image file even though the recording medium has free space. A method and a file management program are provided.

  Another object of the present invention is to provide an information recording apparatus, a file management method, and a file management program capable of notifying a user in advance of an unrecordable state and providing a coping method to improve usability. There is.

  In order to solve the above problems, an information recording apparatus according to the present invention determines a directory number assigned to a directory recorded in a recording medium and a file number assigned to a file name according to a predetermined recording rule, and sets a file number on the recording medium. A first judging means for judging whether or not a directory number or a file number recorded in the recording medium is empty, and the directory is automatically created according to the recording rule. A determination by the second determination means when it is determined by the second determination means for determining whether or not the directory number or the file number is empty by the first determination means; According to the result, the directory automatically created according to the recording rule and the directory not created in the directory It made different resetting method of Patent and file number, and having a renaming means for performing a renaming process to rename a directory name and the file name of the recording medium.

  According to a file management method of the present invention, a recording step of determining a directory number assigned to a directory recorded in a recording medium and a file number assigned to a file name according to a predetermined recording rule, and recording the file on the recording medium; A first determination step of determining whether a directory number or a file number recorded in the recording medium is free; and determining whether or not the directory is automatically created according to the recording rule When the directory number or the file number is determined to be empty by the second determination step and the first determination step, the automatic determination is performed according to the recording rule according to the determination result of the second determination step. The directory number between the directory created by And it made different methods resetting the file number, and having a rename performing renaming process to rename a directory name and the file name of the recording medium.

  A file management program according to the present invention is a file management program for causing a computer to execute the file management method described above.

  According to the present invention, when it is determined that there is an empty directory number or file number, the directory number and the directory number are determined according to the determination result indicating whether the directory is automatically created according to the recording rule. The directory name and file name of the recording medium are renamed by changing the method of resetting the file number. Therefore, there is an effect that it is possible to prevent the unrecordable state from suddenly occurring due to the fact that the file cannot be created even though the recording medium has free space.

  Furthermore, if the user is informed of the unrecordable state in advance, not only can the file structure be reconfigured according to the user's wishes, but also a process of reassigning the file number and directory number as necessary. There is an effect that can be done.

  As a result, according to the present invention, there is an effect that appropriate directory and file management can be performed to prevent a recording prohibited state due to a naming error.

It is a block diagram which shows an example of the imaging device with which the information recording device by embodiment of this invention is used. It is a figure which shows an example of the file structure of the DCF standard used with the imaging device shown in FIG. FIG. 2 is a diagram illustrating an example in which the DCF file structure is reconstructed in the imaging apparatus illustrated in FIG. 1. 4 is a flowchart for explaining a first example of an operation when reconstructing a file configuration in the imaging apparatus shown in FIG. 1. 3 is a flowchart for explaining an example of reconstruction of a file configuration in the imaging apparatus shown in FIG. It is a flowchart for demonstrating the procedure of the directory unit process shown in FIG. 6 is a flowchart for explaining a procedure of file unit processing shown in FIG. 5. 7 is a flowchart for explaining another example of a procedure for reconstructing a file structure (file restructuring process) in units of files in the imaging apparatus shown in FIG. 1. 12 is a flowchart for explaining still another example of a procedure for reconstructing a file configuration in units of directories (directory unit file restructuring process) in the imaging apparatus shown in FIG. 1. 12 is a flowchart for explaining still another example of a procedure for reconstructing a file configuration in units of directories (directory unit file restructuring process) in the imaging apparatus shown in FIG. 1. 4 is a flowchart for explaining a first example of a rename process by starting charging in the imaging apparatus shown in FIG. 1. 6 is a flowchart for explaining a second example of a rename process by starting charging in the imaging apparatus shown in FIG. 1. FIG. 9 is a flowchart for explaining a third example of a renaming process by starting charging in the imaging apparatus shown in FIG. 1. 2 is a diagram illustrating an example of user notification and an example of a rename execution availability selection display in the imaging apparatus illustrated in FIG. 1. FIG. FIG. 9 is a flowchart for explaining a fourth example of renaming by starting charging in the imaging apparatus shown in FIG. 1. FIG. 3 is a diagram illustrating an example of selection display of simple rename processing and full rename processing in the imaging apparatus illustrated in FIG. 1. FIG. 3 is a diagram illustrating an example of a shootable number display process when the camera is activated after the rename process is performed in the imaging apparatus illustrated in FIG. 1. 3 is a flowchart for explaining an example of a rename process during photographing in the imaging apparatus shown in FIG. 1. It is a figure which shows an example of the file structure of the DCF standard used with an imaging device provided with the conventional information recording device.

  Hereinafter, an example of an information recording apparatus according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the information recording apparatus is provided in an imaging apparatus such as a digital camera, and a case where image data obtained as a result of imaging by the imaging apparatus is recorded as an image file (also simply referred to as a file) will be described. To do.

  FIG. 1 is a block diagram illustrating an example of an imaging apparatus in which an information recording apparatus according to an embodiment of the present invention is used. In the illustrated example, a digital camera (hereinafter simply referred to as a camera) 100 is illustrated as an imaging apparatus.

  Referring to FIG. 1, the camera 100 includes a system controller 101 that controls the entire camera 100. Further, in the illustrated example, the camera 100 includes an imaging unit 102, an image / audio processing unit 103, a removable storage medium interface (IF) 104, a removable storage medium detection unit 106, a built-in storage medium 107, a display unit 108, and an audio output unit. 109, a user operation unit 110, and a rechargeable battery (also referred to as a power supply unit) IF 111.

  When the removable storage medium 105 is inserted into the camera 100, the removable storage medium IF 104 and the removable storage medium 105 are connected. Attachment / detachment of the removable storage medium 105 is detected by the removable storage medium detection unit 106.

  The removable storage medium detection unit 106 gives a medium detection signal indicating whether or not the removable storage medium 105 is attached to the camera 100 to the system controller 101 (signal lines are not shown in the illustrated example).

  A rechargeable battery 112 is connected to the rechargeable battery IF111. The rechargeable battery IF 111 is provided with an adapter terminal (charging means) 113, and power (DC power) is supplied from an adapter (not shown) through the adapter terminal 113.

  The system controller 101 detects which of the rechargeable battery IF 111 and the adapter is connected to the rechargeable battery IF.

  The imaging unit 102 includes an optical system, a motor for driving and controlling the optical system, an imaging element (both not shown), and the like.

  When recording an image (hereinafter referred to as an image including a so-called video image) using the camera 100, first, an optical beam is optically projected on the surface of the image sensor by external light that has passed through the image capturing unit 102. An image is formed. The optical image is converted into an electrical signal by the image sensor. This electrical signal is given to the image / sound processor 103, where it is converted into digital data (image data).

  When the detachable storage medium 105 is attached to the camera 100, the audio / video processing unit 103, under the control of the system controller 101, attaches / detaches the image data as an image file via the detachable storage medium IF104 ( (Also simply referred to as a recording medium) 105.

  If the removable storage medium 105 is not attached to the camera 100, the image data is recorded as an image file on an internal storage medium (also simply referred to as a recording medium) 107.

  In the illustrated camera 100, the image file is recorded on the removable storage medium 105 or the built-in storage medium 107 in accordance with the DCF standard.

  When playing back an image file recorded on the removable storage medium 105 or the built-in storage medium 107, the audio / video processing unit 103 converts the image file into image data suitable for display under the control of the system controller 101. Are displayed on the display unit 108.

  The user can operate the camera 100 using the user operation unit 110. The sound output unit 109 is for outputting a warning sound for notifying the user of the internal state of the camera 100 and sound during image reproduction. Note that the warning and the operating state of the camera can also be displayed on the display unit 108.

  In the camera 100 shown in FIG. 1, the components other than the imaging unit 102, the audio output unit 109, and the removable storage medium detection unit 106 constitute an information recording apparatus.

  FIG. 2 is a diagram showing an example of a file configuration of the DCF standard (the DCF standard is one of the recording rules) used in the camera 100 shown in FIG. When the camera 100 records an image file, the image file is recorded in accordance with the DCF standard. In the illustrated example, the image file is described as being recorded on the removable storage medium 105.

  Referring to FIG. 2, DCIM directory 300 is a directory defined by the DCF standard. In the DCIM directory 300, there are DCF directories 301 to 305 named according to definitions defined in the DCF standard. This name is, for example, a directory identification code.

  As shown in the figure, the DCF directories 301 to 305 have DCF files 306 to 308, 309 to 311, 312 to 314, and 315 to 317 such as image files named according to definitions defined in the DCF standard. , And 318-320. This name is, for example, a file identification code.

  In the illustrated example, the DCF directory number (also simply referred to as a directory number) and the DCF file number (also simply referred to as a file number) are not continuous, and as a result, the recording area of the removable storage medium 105 (FIG. 1). There is waste. Therefore, here, the file structure is reconstructed so that the DCF directory number and the DCF file number are continuous.

  FIG. 3 is a diagram showing an example in which the DCF file structure is reconstructed in the camera 100 shown in FIG.

  Referring to FIG. 3, when reconstructing the file structure, the directory information is examined in order from the DCF directory with the smallest DCF directory number. If the DCF directory is automatically created in accordance with the DCF standard, it is assumed that the DCF directory is not intentionally created by the user, and the DCF directory number and the DCF file number are packed for each DCF file as described later. To go.

  On the other hand, if the DCF directory name is not automatically created in accordance with the DCF standard, there is a high possibility that the DCF directory name is intentionally created by the user. For example, the DCF directory is likely to be a DCF directory intentionally divided for each date and each event.

  For this reason, it is convenient for the user to manage the DCF directory separately from other DCF directories. Therefore, in this case, as will be described later, the DCF directory number is packed in units of DCF directories. That is, the method for resetting the directory number and the file number differs depending on whether the directory is automatically created according to the DCF standard. As will be described later, for a directory automatically created in accordance with the DCF standard, both the directory number and the file number recorded in the directory are to be renamed. In addition, for a directory that is not automatically created in accordance with the DCF standard, the directory number is renamed without changing the file number recorded in the directory.

  In the illustrated example, the DCIM directory 400 includes DCF directories 401 to 403. The DCF directories 401 to 403 include DCF files 404 to 409, 410 to 412, and 413 to 418, respectively.

  Here, referring to FIG. 2 and FIG. 3, it is assumed that the DCF directory name is handled as directory information. In FIG. 2, in the DCF directory 301 represented by “100AAAAA” and the DCF directory 302 represented by “200AAAAA”, the DCF directory names are not intentionally assigned DCF directory names.

  Therefore, here, the DCF directory number is a group in the DCF directory 301 represented by “100AAAAA”. Then, the DCF file numbers of the DCF files 306 to 311 included in the DCF directories 301 and 302 shown in FIG.

  In FIG. 3, a DCF directory whose DCF directory number is represented by “100AAAAA” is denoted by reference numeral 401.

  As a result, in FIG. 3, the DCF directory 401 includes the DCF files 306 to 311 shown in FIG. 2 as the DCF files 404 to 409.

  In FIG. 2, a DCF directory 303 represented by “30007410” is a DCF directory that is likely to have a DCF directory name associated with a date. For this reason, the DCF directory 303 is distinguished from other DCF directories and is not combined with the DCF files in the other DCF directories.

  Then, only the DCF directory number of the DCF directory 303 represented by “30007410” is changed to “10107410”. As a result, the DCF directory 303 shown in FIG. 2 becomes the DCF directory 402 shown in FIG.

  In FIG. 3, the DCF files 312 to 314 shown in FIG. 2 are shown as DCF files 410 to 412.

  In FIG. 2, in the DCF directory 304 represented by “400AAAAA” and the DCF directory 305 represented by “500AAAAA”, the DCF directory name is not the DCF directory name given intentionally. Therefore, in the same manner as the DCF directory 301 represented by “100AAAAA” and the DCF directory 302 represented by “200AAAAAA” as described above, as shown in FIG. 3, a single DCF directory 403 represented by the DCF directory number “102AAAAAA” is collected. . Then, the file numbers of the DCF files 315 to 320 in the DCF directories 304 and 305 are changed from “0001”.

  As a result, the DCF files 315 to 320 shown in FIG. 2 become the DCF files 413 to 418 shown in FIG. 3, and the DCF files 413 to 418 are included in the DCF directory 403.

  2 and 3, the example in which the file structure is reconstructed using the DCF directory name as the directory information has been described. However, when the DCF directory is divided for each date or event, an image is stored in the DCIM directory in another file. There is a method for managing files. In this method, it is possible to know whether or not the DCF directory is a DCF directory created for each date or event by examining the management file.

  As described above, the file structure is reconstructed so that the recording area of the removable storage medium 105 is substantially increased by making the DCF directory number and the DCF file number continuous. Here, the procedure for reconstructing the file structure will be described.

  FIG. 4 is a flowchart for explaining a first example of the operation when the file structure is reconstructed in the camera 100 shown in FIG. In the following description, the system controller 101 controls the image / sound processing unit 103 and reconstructs the file structure together with the image / sound processing unit 103.

  Referring to FIGS. 1 and 4, the system controller 101 accesses the removable storage medium 105 via the audio / video processing unit 103, and analyzes the file structure of the DCF format standard (step S101). Then, the system controller 101 checks whether the DCF directory number and the DCF file number are free from the analysis result (step S102: first determination unit).

  Subsequently, when the DCF directory number and the DCF file number are free (YES in step S102), the system controller 101 executes reconstruction of the file configuration (step S103). The reconstruction of the file structure in step S103 will be described later.

  On the other hand, if there is no space in the DCF directory number and the DCF file number (NO in step S102), the system controller 101 ends the reconstruction process.

  FIG. 5 is a flowchart for explaining an example of the reconstruction of the file structure in the camera 100 shown in FIG.

  As described in FIG. 4 with reference to FIGS. 1 and 5, when there is a vacancy in the DCF directory number and the DCF file number in step S102, the system controller 101 reconstructs the file structure shown in step S103. Execute (file reconstruction process).

  First, the system controller 101 acquires the number of DCF directories located under the DCIM directory, and substitutes this number into a variable L (step S201). That is, L = the number of DCF directories.

  Next, the system controller 101 initializes by substituting 100 for the number of DCF directories (the number of reconstructed directories) generated with the reconstructed file structure, that is, the variable x for storing the DCF directory number (step S202).

  Similarly, the system controller 101 initializes by substituting 1 into the variable y for storing the number of DCF files in the reconstructed file structure, that is, the DCF file number (step S203). Subsequently, the system controller 101 initializes by assigning 0 to a variable i for counting the DCF directory (step S204).

  The system controller 101 checks whether the DCF directory number L is smaller than the count number i (step S205). If the count number i is smaller than the directory number L (YES in step S205), the system controller 101 checks whether or not the i-th DCF directory is a directory automatically generated according to the DCF standard. . That is, as described above, a directory or folder that is not automatically generated according to the DCF is highly likely to be a directory or folder created by the user. Accordingly, the system controller 101 performs a process (confirmation process) for confirming whether or not the i-th DCF directory has been created intentionally by the user (step S206). Then, the system controller 101 proceeds to step S207.

  For directories that may have been created by the user, if the file name or directory name is changed unnecessarily, it may be difficult to understand against the user's intention. On the other hand, with respect to the directory automatically generated according to the DCF standard, even if the number is filled, there is not much disadvantage for the user. In addition, the directory automatically generated according to the DCF standard has a greater merit of preventing the situation where the directory number becomes full and the image file cannot be recorded.

  Here, for example, the following methods (1) and (2) are used as a method for determining whether or not each directory is intentionally created by the user.

  (1) First, it is determined whether or not the directory name conforms to the DCF standard. Subsequently, (2) a table is prepared in the recording medium, and information indicating whether each directory is automatically generated in accordance with the DCF standard is recorded in the table. Then, with reference to the table, the system controller 101 determines whether or not each directory is intentionally created by the user based on the above information.

  Note that information indicating whether each directory is automatically generated in accordance with the DCF standard is recorded in the table as an example. That is, if information that can determine whether or not each directory is automatically generated in accordance with the DCF standard is recorded, the recording location of each directory and its recording form can be changed as appropriate.

  On the other hand, if the count number i is greater than or equal to the DCF directory number L (NO in step S205), the system controller 101 ends the process.

  Next, in step S207, the system controller 101 confirms whether or not the i-th DCF directory is a directory automatically generated according to the DCF standard. That is, the system controller 101 confirms whether or not the i-th DCF directory is intentionally created by the user (second determination unit). If the i-th DCF directory is automatically created in accordance with the DCF standard (YES in step S207), the audio / video processing unit 103 counts the numbers in units of DCF directories (directory unit processing), and sets the file configuration. Reconstruction is performed (step S208: first processing).

  On the other hand, if the i-th DCF directory is not automatically created in accordance with the DCF standard, that is, if there is a high possibility that the i-th DCF directory is created intentionally by the user (NO in step S207). ) The audio / video processing unit 103 counts the numbers in units of DCF files (file unit processing), and reconstructs the file structure (step S209: second processing).

  The directory unit process in step S208 and the file unit process in step S209 will be described later. Here, the directory unit processing and the file unit processing are called rename processing, and the function of performing the rename processing is the rename means.

  Thereafter, the audio / video processing unit 103 increments the count number i (step S210), returns to step S205, and continues the process in the same manner.

  FIG. 6 is a flowchart for explaining the procedure of the directory unit process shown in FIG.

  Referring to FIGS. 1 and 6, here, variables i and x in FIG. 6 are equivalent to variables i and x described in FIG.

  First, the system controller 101 changes the i-th DCF directory number to the DCF directory number x to be created next in the reconstructed file structure (step S301).

  Subsequently, the system controller 101 increments the variable x (step S302). Then, the system controller 101 substitutes 1 for the DCF file number y to be created next in the reconstructed file configuration (step S303). Thereafter, the system controller 101 proceeds to step S210 illustrated in FIG.

  FIG. 7 is a flowchart for explaining the procedure of the file unit process shown in FIG.

  Referring to FIGS. 1 and 7, here, variables i and x in FIG. 7 are equivalent to variables i and x described in FIG. First, the system controller 101 acquires the number of DCF files in the i-th DCF directory, and substitutes the DCF file into a variable m (step S401).

  Next, the system controller 101 initializes by assigning 0 to the count number j (step S402). Then, the system controller 101 checks whether or not the count number j is smaller than the file number m (step S403).

  If the count number j is smaller than the file number m (YES in step S403), the system controller 101 confirms whether or not the DCF file number y to be created next in the file structure after the reconstruction is 9999 or less ( Step S404: Third determination means).

  On the other hand, if the count number j is greater than or equal to the file number m (NO in step S403), the system controller 101 ends the process and proceeds to step S210 shown in FIG.

  If the DCF file number y exceeds 9999 in step S404 (NO in step S404), the system controller 101 increments the DCF directory number x to be created next in the file structure after the reconstruction (step S405). . Then, the system controller 101 substitutes 1 for the file number y to be created next in the reconstructed file configuration (step S406).

  On the other hand, if the DCF file number y is 9999 or less in step S404 (YES in step S404), the system controller 101 converts the jth DCF file number to the DCF of the DCF directory number x in the reconstructed file structure. The file is changed to the file of DCF file number y in the directory (step S407: reconstruction means).

  Then, the system controller 101 increments the DCF file number y to be created next in the reconstructed file configuration (step S408). Subsequently, the system controller 101 increments the count number j (step S409).

  Thereafter, the system controller 101 returns to step S403, performs a process of confirming whether the count number j is smaller than the file number m, and thereafter continues the same process.

  By the way, when the DCF directories recorded in the removable storage medium 105 are not all created automatically in accordance with the DCF standard, for example, when the names are all intended by the user, as described above. In addition, the file structure cannot be reconstructed in units of directories.

  As a result, when the DCF directory number and the DCF file number have reached the upper limit, it is impossible to perform further shooting, that is, to record the image file.

  In this case, for example, the DCF directory structure divided for each date and event will be destroyed, but whether or not to reconstruct the file structure in units of DCF files and make it ready for shooting. Prompt the user for confirmation. When the user selects to execute reconstruction in units of DCF files, the reconstruction is executed in units of DCF files. Hereinafter, the reconstruction in units of DCF files will be described.

  FIG. 8 is a flowchart for explaining another example of the procedure for reconstructing the file structure (file restructuring process) in units of files in the camera 100 shown in FIG.

  Note that the file restructuring process shown in FIG. 8 is obtained by adding steps S501 to S507 described later to the file restructuring process shown in FIG. Accordingly, the steps described in FIG. 5 are denoted by the same reference numerals and description thereof is omitted here.

  Referring to FIGS. 1 and 8, in FIG. 8, following step S204, the system controller 101 executes a confirmation process for confirming whether or not it is possible to pack in units of DCF directories (step S204). S501). The confirmation process in step S501 will be described later.

  Then, the system controller 101 checks whether or not it can be packed in units of DCF directories (step S502). If it is possible to pack in units of DCF directories (YES in step S502), the system controller 101 proceeds to step S205 described in FIG. Thereafter, the system controller 101 continues the process as described with reference to FIG.

  On the other hand, if it is impossible to fill in units of DCF directories (NO in step S502), the system controller 101 confirms whether or not to perform a process of filling in units of DCF files via the image / audio processing unit 103. A confirmation screen is displayed on the display unit 108 (step S503). In other words, the system controller 101 executes a confirmation process for confirming whether or not to squeeze the user in units of DCF files.

  The system controller 101 confirms with the user whether or not to pack in DCF file units (step S504). When the user selects “pack in units of DCF files” by user operation unit 110 (YES in step S504), system controller 101 checks whether count number i is smaller than DCF directory number L (step S505). .

  On the other hand, when the user selects “Do not jam in units of DCF files” using the user operation unit 110 (NO in step S504), the system controller 101 ends the file reconstruction process.

  If the count number i is smaller than the DCF directory number L in step S505 (YES in step S505), the system controller 101 reconstructs the file structure by packing the DCF files in units of DCF files (step S506).

  If the count number i is equal to or greater than the directory number L in step S505 (NO in step S505), the system controller 101 ends the file reconstruction process.

  Subsequently, the system controller 101 increments the count number i (step S507). Thereafter, the system controller 101 returns to step S505 to check whether or not the count number i is smaller than the DCF directory number L, and thereafter continues the same process.

  FIGS. 9a and 9b are flowcharts for explaining still another example of the procedure for reconstructing the file structure in units of directories (directory unit file restructuring process) in the camera 100 shown in FIG.

  Referring to FIGS. 1, 9a, and 9b, the system controller 101 acquires the number of DCF directories from the removable storage medium 105 via the audio / video processing unit 103, and substitutes it for a variable L (step S1). S601). Subsequently, the system controller 101 performs a confirmation process for confirming whether or not the number of directories, that is, the variable L is 900 (step S602).

  If variable L is 900 (YES in step S602), system controller 101 initializes by assigning 0 to count number j (step S603). On the other hand, if the variable L is not 900 (NO in step S602), the system controller 101 displays a message on the display unit 108 via the image / audio processing unit 103 (step S604). . Then, the system controller 101 ends the directory unit file reconstruction process.

  Subsequent to step S603, the system controller 101 initializes the variable by assigning 0 to a temporary variable tmp that holds the number of DCF files (step S605). Then, the system controller 101 checks whether or not the count number j is smaller than the variable L, that is, the number of DCF directories (step S606).

  If the count number j is smaller than the variable number L (YES in step S606), the system controller 101 determines whether the j-th DCF directory has been automatically generated according to the DCF standard (that is, the user intends this DCF directory). A confirmation process for confirming whether or not it has been created is executed (step S607).

  On the other hand, if the count number j is greater than or equal to the variable L (NO in step S606), the system controller 101 displays a message on the display unit 108 that the DCF directory unit cannot be filled via the image / audio processing unit 103. (Step S608). Then, the system controller 101 ends the directory unit file reconstruction process.

  Subsequent to step S607, the system controller 101 checks whether or not the j-th DCF directory has been automatically generated in accordance with the DCF standard (that is, whether or not the DCF directory was intentionally created by the user) (step S609). . If the j-th DCF directory is not a DCF directory automatically generated in accordance with the DCF standard (that is, if it is a DCF directory intentionally created by the user: YES in step S609), the system controller 101 determines that the DCF file 0 is substituted into the temporary variable tmp holding the number (step S610).

  Then, the system controller 101 increments the count number j (step S615). Thereafter, the system controller 101 returns to step S606, checks whether the count number j is smaller than the variable L, that is, the number of DCF directories, and continues the process in the same manner.

  On the other hand, in step S609, if the jth DCF directory is a directory automatically generated in accordance with the DCF standard (that is, if it is not a directory intentionally created by the user: NO in step S609), the system controller 101 Obtains the number of DCF files in the j-th DCF directory and substitutes it for the variable m (step S612). Then, the system controller 101 checks whether or not the temporary variable tmp is 0 (step S613).

  If temporary variable tmp is 0 (YES in step S613), system controller 101 increments temporary variable tmp by m (step S614). Then, the system controller 101 proceeds to step S611 and increments the count number j.

  On the other hand, if temporary variable tmp is not 0 (NO in step S613), system controller 101 decrements temporary variable tmp by m (step S615). Then, the system controller 101 checks whether or not the temporary variable tmp is 9999 or more (step S616).

  If temporary variable tmp is larger than 9999 (YES in step S616), system controller 101 substitutes a value of “tmp−9999” for temporary variable tmp (step S617). Then, the system controller 101 proceeds to step S611 and increments the count number j.

  On the other hand, if temporary variable tmp is not 9999, that is, if temporary variable tmp is 9999 or less (NO in step S616), system controller 101 proceeds to step S604 and performs DCF via image / audio processing unit 103. A message is displayed on the display unit 108 indicating that the directory can be filled. Then, the system controller 101 ends the directory unit file reconstruction process.

  The above-described reconstruction of the file structure is assumed to be executed when, for example, image data, that is, an image file cannot be recorded during shooting, but a DCF directory number or a DCF file number is assumed. It may be executed at various timings such as when the value becomes equal to or greater than a predetermined value.

  FIG. 10 is a flowchart for explaining a first example of the rename process by the start of charging in the camera 100 shown in FIG.

  As described above, the camera 100 can incorporate the rechargeable battery 112 (FIG. 1). Here, when the camera 100, that is, the rechargeable battery 112 is charged, that is, when charging of the camera 100 is started, a time required for charging (referred to as a charging completion time) is measured (predicted). Subsequently, the time required for the renaming process (referred to as renaming completion time) is measured to determine whether the renaming process can be performed. For example, here, the renaming process is executed when the charging completion time is longer than the renaming completion time.

  With reference to FIGS. 1 and 10, first, the system controller 101 determines to start charging (step S701). In the illustrated example, when the rechargeable battery 112 is connected to the rechargeable battery IF (power supply unit) 111, the DC power source is connected to the adapter terminal 113, and the camera 100 is in the off state, the system controller 101. Is determined to start charging. That is, the conditions for starting charging are the connection of the rechargeable battery 111 and the DC power source, and the camera 100 in the off state.

  If it is determined that charging is started (YES in step S701), the system controller 101 predicts the charging completion time (step S702: charging time measuring means). On the other hand, if it is not determined to start charging (NO in step S701), system controller 101 ends the rename process.

  When predicting the charge completion time, the system controller 101 calculates the time required for charge completion (charge completion time) from the charge amount of the rechargeable battery 112 based on the information information of the rechargeable battery 112.

  Subsequently, the system controller 101 is necessary for performing a rename process on all the DCF directories and image files (DCF files) recorded in the removable storage medium 105 via the image / audio processing unit 103. Time (rename completion time) is predicted (step S703: rename time measurement means).

  The system controller 101 compares the charge completion time and the rename completion time, and determines whether or not the charge completion time is longer than the rename completion time (step S704). Then, according to the determination result, the system controller 101 determines whether or not to perform a rename process (rename determination unit).

  If the charging completion time is sufficient and longer than the renaming completion time (YES in step S704), the system controller 101 performs the renaming process on all the DCF directories and DCF files recorded in the removable storage medium 105. This is performed (step S705). Then, the system controller 101 ends the rename process.

  On the other hand, when the charging completion time is equal to or shorter than the renaming completion time (NO in step S704), system controller 101 ends the renaming process without performing the renaming process.

  In this manner, since it is determined whether or not to perform the rename process according to the charge completion time and the rename completion time, it is possible to reliably perform the rename process for all DCF directories and DCF files.

  FIG. 11 is a flowchart for explaining a second example of the rename process by the start of charging in the camera 100 shown in FIG.

  Here, when the charging of the camera 100 is started, the renaming process is performed on all DCF directories and DCF files, or the renaming process is performed on a part of the DCF directories and DCF files. Judgment is made and a rename process is executed.

  With reference to FIGS. 1 and 11, first, as described in relation to FIG. 10, the system controller 101 determines the start of charging (step S801). If it is determined that charging is started (YES in step S801), the system controller 101 predicts the charging completion time as described in FIG. 10 (step S802). On the other hand, if it is not determined to start charging (NO in step S801), system controller 101 ends the rename process.

  Subsequently, the system controller 101 uses the audio / video processing unit 103 to perform a time required for performing the rename process on all the DCF directories and DCF files recorded in the removable storage medium 105 (rename). Completion time) is predicted (step S803).

  The system controller 101 compares the charge completion time with the rename completion time, and determines whether or not the charge completion time is longer than the rename completion time (step S804).

  If the charging completion time is sufficient and longer than the renaming completion time (YES in step 804), the system controller 101 performs the renaming process on all the DCF directories and DCF files recorded in the removable storage medium 105. This is performed (step S805). Then, the system controller 101 ends the rename process.

  On the other hand, when the charging completion time is equal to or shorter than the renaming completion time (NO in step S804), system controller 101 executes the renaming process for one DCF directory (step S806). Then, the system controller 101 ends the rename process.

  In the example shown in FIG. 11, steps S804, S805, and S806 function as rename determination means.

  In this way, it is determined whether to perform the renaming process for all of the DCF directory and the DCF file or the renaming process for a part of the DCF directory according to the charging completion time and the renaming completion time. Therefore, the rename process can be appropriately executed.

  FIG. 12 is a flowchart for explaining a third example of the rename process by the start of charging in the camera 100 shown in FIG.

  Here, when charging the camera 100, if the charging completion time is short, the user is allowed to select whether or not to perform the rename process.

  With reference to FIGS. 1 and 12, first, the system controller 101 determines to start charging as described with reference to FIG. 10 (step S901). When it is determined that charging is started (YES in step S901), the system controller 101 predicts the charging completion time as described with reference to FIG. 10 (step S902). On the other hand, if it is not determined to start charging (NO in step S901), system controller 101 ends the rename process.

  Subsequently, the system controller 101 uses the audio / video processing unit 103 to perform a time required for performing the renaming process on all the DCF directories and DCF files recorded in the removable storage medium 105 (renaming completion). Time) is predicted (step S903).

  The system controller 101 compares the charge completion time and the rename completion time, and determines whether or not the charge completion time is longer than the rename completion time (step S904).

  If the charging completion time is sufficient and longer than the renaming completion time (YES in step 904), the system controller 101 performs the renaming process on all the DCF directories and DCF files recorded in the removable storage medium 105. This is performed (step S905). Then, the system controller 101 ends the rename process.

  On the other hand, if the charging completion time is equal to or shorter than the renaming completion time (NO in step S904), the system controller 101 notifies that the renaming process is not completed within the charging completion time via the image / audio processing unit 103, that is, renaming. A message indicating that the process is longer than the charging process is displayed on the display unit 108 to notify the user (step S906).

  As a result, the system controller 101 causes the user to select whether or not to execute the rename process.

  FIG. 13 is a diagram illustrating an example of a user notification and an example of a rename execution availability selection display in the camera 100 illustrated in FIG.

  As illustrated in FIG. 13, the system controller 101 displays “Rename processing does not end within the time of charging completion” on the display unit 108 as a user notification. Further, the system controller 101 displays “rename processing?” On the display unit 108 as a display for selecting whether or not to perform rename, and below that, “Yes” and “No” buttons 13a and 13b are displayed. indicate.

  Subsequent to step S906, the system controller 101 determines whether to perform a rename process (step S907). When the user selects “Yes” button 13a using user operation unit 110 (YES in step S907), system controller 101 determines that the rename process is to be performed, and proceeds to step S905. Then, the system controller 101 performs the rename process on all the DCF directories and DCF files recorded in the removable storage medium 105, and thereafter ends the rename process.

  On the other hand, when the user selects “NO” button 13a using user operation unit 110 (NO in step S907), system controller 101 determines that the rename process is not performed, and ends the rename process.

  In this way, when deciding whether to perform the renaming process for all of the DCF directory and the DCF file according to the charging completion time and the renaming completion time, it is determined whether the renaming process is performed according to the intention of the user. Thus, the renaming process can be appropriately performed according to the user's selection.

  FIG. 14 is a flowchart for explaining a fourth example of the rename process by the start of charging in the camera 100 shown in FIG.

  With reference to FIGS. 1 and 14, first, as described in relation to FIG. 10, the system controller 101 determines the start of charging (step S1001). If it is determined that charging is started (YES in step S1001), the system controller 101 predicts the charging completion time as described in FIG. 10 (step S1002).

  On the other hand, if it is not determined to start charging (NO in step S1001), system controller 101 ends the rename process.

  Subsequently, the system controller 101 uses the audio / video processing unit 103 to perform a time required for performing the renaming process on all the DCF directories and DCF files recorded in the removable storage medium 105 (renaming completion). Time) is predicted (step S1003).

  The system controller 101 compares the charge completion time and the rename completion time, and determines whether or not the charge completion time is longer than the rename completion time (step S1004).

  If the charging completion time is sufficient and longer than the renaming completion time (YES in step 1004), the system controller 101 determines whether or not the simple renaming process has been performed a predetermined number of times (for example, five times). Determination is made (step S1005). Here, the simple renaming process means executing a renaming process for one DCF directory.

  If the simple rename process has not been performed a predetermined number of times in succession (NO in step S1005), the system controller 101 executes the rename process for one directory (that is, the simple rename process) (step S1006).

  Then, the system controller 101 increments the number of continuous executions of the simple renaming process (increments by 1), holds this number of executions (step S1007), and ends the renaming process.

  If the charging completion time is equal to or shorter than the renaming completion time in step S1004 (NO in step S1004), the system controller 101 notifies that the renaming process is not completed within the charging completion time via the image / audio processing unit 103, that is, The display unit 108 displays that the renaming process is longer than the charging process, and notifies the user (step S1008).

  Subsequently, the system controller 101 displays on the display unit 108 whether or not to execute the rename process and notifies the user (step S1009). As a result, the system controller 101 causes the user to select whether or not to execute the rename process.

  Note that the display in steps S1008 and S1009 is the same as the display example described in FIG.

  If the user selects to execute the rename process (YES in step S1009), the system controller 101 notifies the user of the selection of whether to perform the simple rename process or all rename processes (full rename process). (Step S1010).

  FIG. 15 is a diagram showing an example of the selection display of the simple rename process and the full rename process in the camera 100 shown in FIG.

  As shown in FIG. 15, the system controller 101 displays a notification sentence “rename processing target range” and “please make the following selections” on the display unit 108. Then, the system controller 101 displays “simple” and “all files” buttons 15 a and 15 b on the display unit 108 under the notification message “Please select the following”.

  When the user selects the “simple” button 15a using the user operation unit 110 (simple in step S1010), the system controller 101 determines that the simple rename process is to be performed, and proceeds to step S1006. Then, the system controller 101 performs a rename process, that is, a simple rename process, for one DCF directory recorded in the removable storage medium 105 via the audio / video processing unit 103.

  On the other hand, when the user selects the “all files” button 15 b using the user operation unit 110 (full in step S 1010), the system controller 101 transfers the detachable storage medium 105 to the removable storage medium 105 via the image / audio processing unit 103. Rename processing, that is, full rename processing is performed on all of the recorded DCF directories and DCF files (step S1011).

  Subsequently, the system controller 101 resets (erases) the number of continuous executions of the simple rename process (step S1012), and ends the rename process.

  In step S1009, when the user selects “NO” button 13a shown in FIG. 13 using user operation unit 110 (NO in step S1009), system controller 101 determines that the rename process is not performed. To complete the rename process.

  If the number of continuous executions of the simple rename process is greater than or equal to the predetermined number in step S1005 (YES in step S1005), the system controller 101 proceeds to step S1011. Then, the system controller 101 performs a renaming process (full renaming process) on all the DCF directories and DCF files recorded in the removable storage medium 105 via the audio / video processing unit 103.

  In this way, whether to perform the simple rename process or the full rename process when determining whether to perform the rename process for all of the DCF directory and the DCF file according to the charge completion time and the rename completion time. With respect to the above, since the execution of the rename process is determined according to the user's selection, the rename process can be appropriately performed according to the user's selection.

  As described above, in the first to fourth examples in which the renaming process is performed in response to the start of charging, the renaming process can be performed without worrying about the capacity of the rechargeable battery, and as a result, recording becomes impossible. Can be avoided as much as possible.

  FIG. 16 is a diagram illustrating an example of a shootable number display process when the camera is activated after the rename process is performed in the camera 100 illustrated in FIG. 1.

  Here, as described above, after the renaming process is performed while the camera 100 is being charged, when the camera 100 is started, the number of recordable sheets until the DCF directory number and the DCF file number reach the upper limit (that is, The number of images that can be taken) is displayed on the display unit 108.

  Referring to FIG. 1 and FIG. 16, when the camera 100 is activated, the system controller 101 determines whether or not the renaming process has been performed during the charging, immediately after the charging is completed (step S1101). It is assumed that charging information indicating whether or not the renaming process has been performed during charging is held by a system controller 101 in a non-volatile memory (not shown).

  If the charging information is held in the non-volatile memory, that is, if the renaming process is being performed during charging (YES in step S1101), the system controller 101, after activation of the camera 100, has a predetermined time. In the meantime, the number of recordable sheets until the DCF directory number and the DCF file number of the DCF standard reach the upper limit is displayed on the display unit 108 via the audio / video processing unit 103 (step S1102). Then, the system controller 101 ends the shootable number display process.

  On the other hand, if the rename process is not performed during charging (NO in step S1101), the system controller 101 ends the shootable image number display process.

  The system controller 101 displays the number of recordable sheets as described above, and then erases both the camera activation information immediately after the completion of charging and the above charging information from the nonvolatile memory.

  Since the number of recordable images is displayed when the camera 100 is activated after the rename process is executed in this manner, the user can immediately know the number of sheets that can be recorded by the rename process.

  By the way, when the user performs shooting using the camera 100 shown in FIG. 1 and the DCF file number exceeds the maximum value defined by the camera 100, the renaming process is performed as follows. Is done.

  FIG. 17 is a flowchart for explaining an example of the rename process during shooting in the camera 100 shown in FIG.

  As described with reference to FIG. 1 and FIG. 17, when the user presses a shutter (not shown) and shoots one subject, the system controller 101 causes the image / sound processing unit 103 to operate. Then, the image data relating to the subject is stored as an image file, for example, in the removable storage medium 105 (step S2001).

  The system controller 101 determines whether or not the DCF file number has reached the upper limit (maximum value) defined by the file system, that is, the camera 100, every time image data is stored in the removable storage medium 105 as an image file. (Step S2002).

  If the DCF file number has not reached the upper limit, the system controller 101 returns to step S2001, whereby the user can perform the next shooting.

  On the other hand, when the DCF file number has reached the upper limit, the system controller 101 checks whether or not the power source being used is the rechargeable battery 112 (step S2003).

  If the power source is not a rechargeable battery (NO in step S2003), the system controller 101 performs the rename process for all areas of the removable storage medium 105, that is, all DCF directories and DCF files (step S2004). Then, the system controller 101 ends the renaming process during shooting.

  Note that the renaming process in step S2004 described above is the same as the process described with reference to FIG.

  In step S2003, if the power source is the rechargeable battery 112 (YES in step S2003), the system controller 101 performs a simple renaming process for renaming only one DCF directory (step S2005). Then, the system controller 101 ends the renaming process during shooting.

  When performing the simple renaming process, for example, the system controller 101 first checks whether there is a free area (missing number) in the DCF directory in reverse order from the one with the largest DCF directory number. Then, the system controller 101 executes the above-described process of filling the DCF directory in which a free area is first found in units of the DCF file.

  When the renaming process (full renaming process) is performed on the entire area of the removable storage medium 105, a large amount of time is required even with a high-speed CPU (central processing unit). Generally, a large capacity rechargeable battery 112 is rarely attached to the camera 100, and it is difficult to perform a full rename process.

  Therefore, when the power source is the rechargeable battery 112, a simple rename process is performed to allow the user to continue shooting. That is, in this case, simple rename processing is performed in order to avoid a state in which the final DCF file number is the upper limit of the file system.

  With such a simple renaming process, even if the large-capacity rechargeable battery 112 is not attached, the process can be performed in a short time and only the minimum necessary power is used. Then, it is possible to avoid a state in which shooting is impossible due to restrictions from the file system.

  As described above, according to the embodiment of the present invention, it is possible to avoid as much as possible a situation in which an image file cannot be recorded even though a recording medium such as the removable storage medium 105 has a free space. For example, the user is informed of the unrecordable state in advance, and the file structure is reconstructed according to the user's wishes. Therefore, a DCF file number and a DCF directory number are assigned according to the user's intention. You can fix it. Therefore, according to the embodiment of the present invention, appropriate DCF directory and DCF file management can be performed.

  In addition, the user is informed of the unrecordable state in advance, and the renaming process is executed according to the user's selection, so that not only can the file structure be reconfigured according to the user's wishes, but also the necessity. Accordingly, the process of reassigning the file number and the directory number can be performed to avoid the unrecordable state.

  As is clear from the above description, in the embodiment of the present invention, the system controller 101 and the image / sound processing unit 103 collectively include a recording unit, a first determination unit, a second determination unit, And it will function as a renaming means. The system controller 101 functions as a charging time measuring unit, a rename time measuring unit, and a rename determining unit.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to these embodiment, Various forms of the range which does not deviate from the summary of this invention are also contained in this invention. .

  For example, the functions of the above-described embodiments may be executed by a computer such as a microprocessor as a file management method. Further, a program having the functions of the above-described embodiments may be executed by a computer such as a microprocessor as a file management program.

  Further, the same effect can be realized by reading the file management program from a recording medium storing the file management program into a computer such as a microprocessor and executing the program.

  As a recording medium for supplying the file management program, for example, a magnetic recording medium such as a hard disk or a magnetic tape, an optical / magneto-optical storage medium, or a nonvolatile semiconductor memory is used. When supplying the file management program, the program may be stored in a server on a computer network, and the client computer may download the program.

DESCRIPTION OF SYMBOLS 100 Camera 101 System controller 102 Image pick-up part 103 Image sound processing part 104 Removable storage medium IF
DESCRIPTION OF SYMBOLS 105 Removable storage medium 106 Removable storage medium detection part 107 Built-in storage medium 108 Display part 109 Audio | voice output part 110 User operation part 111 Rechargeable battery IF

Claims (11)

Recording means for determining a directory number assigned to a directory recorded in a recording medium and a file number assigned to a file name according to a predetermined recording rule, and recording the file on the recording medium;
First determination means for determining whether a directory number or a file number recorded in the recording medium is empty;
Second determining means for determining whether or not the directory is automatically created according to the recording rule;
A directory automatically created according to the recording rule according to the determination result by the second determination unit when the first determination unit determines that there is a vacancy in the directory number or the file number, and not so An information recording apparatus comprising: a renaming unit that executes a renaming process for renaming a directory name and a file name of the recording medium by changing a method of resetting the directory number and the file number for each directory.   The information recording apparatus according to claim 1, wherein the second determination unit determines whether each directory name conforms to the recording rule. In the recording medium, information indicating whether each directory is automatically created according to the recording rule is recorded,
3. The information recording apparatus according to claim 1, wherein the second determination unit performs determination according to information indicating whether each directory is automatically created according to the recording rule.   For the directory automatically created according to the recording rule, the renaming means automatically renames both the directory number and the file number recorded in the directory according to the recording rule. 4. A directory that has not been created is subject to renaming without changing the number of a file recorded in the directory. The information recording device described in 1.   The information recording apparatus according to claim 1, wherein the recording rule is a DCF standard. Furthermore, the information recording device can incorporate a rechargeable battery,
The information recording apparatus according to claim 1, wherein the rename process is executed while the rechargeable battery is being charged.   Furthermore, it has an imaging means, The said recording means records the image data obtained by the said imaging means on the said recording medium as a file, The any one of Claims 1-6 characterized by the above-mentioned. Information recording device. Charging time measuring means for obtaining a charging completion time required for charging when charging the rechargeable battery;
Renaming time measuring means for obtaining a renaming completion time required for renaming by the renaming means;
And a renaming determination unit configured to determine whether or not to execute a full renaming process for renaming all of the directory and the file according to the charging completion time and the renaming completion time. 6. The information recording device according to 6.   9. The information recording apparatus according to claim 8, wherein the renaming determination unit determines that the full renaming process is executed when the charging completion time is longer than the renaming completion time. A recording step of determining a directory number assigned to a directory recorded in a recording medium and a file number assigned to a file name according to a predetermined recording rule, and recording the file on the recording medium;
A first determination step of determining whether a directory number or a file number recorded in the recording medium is empty;
A second determination step of determining whether or not the directory is automatically created according to the recording rule;
If it is determined in the first determination step that the directory number or the file number is empty, the directory automatically created according to the recording rule according to the determination result in the second determination step is not. A file management method comprising: a rename step of executing a rename process for renaming a directory name and a file name of the recording medium by changing a method of resetting the directory number and the file number for each directory.   A file management program for causing a computer to execute the file management method according to claim 10.

Images