KR100881714B1 - Apparatus for photographing and file managing method used in the same - Google Patents

Abstract

(Problem) Provided is a file identification method that detects file information that has been copied to a PC on the photographing device side and makes it possible to identify a file that has been copied and an incomplete file.

(Solution means) The photographing apparatus 1 includes a file recording means 14 for recording photographing data constituting a file in cluster units, a receiving means 14 for receiving a control signal from the PC 2, and a reception. Discriminating means 14 for discriminating whether or not the given control signal is a copy command for copying a file, and recording means for recording cluster information of photographing data copied to the PC 2 when discriminated by the copy command. (19) and detection means 14 for comparing all the cluster information recorded by the file recording means with the cluster information recorded in the recording means to detect a file in which the cluster information all match, and only the detected file. Delete it.

Shooting device, video camera, data, delete

Description

Shooting device and file management method used for the shooting device {APPARATUS FOR PHOTOGRAPHING AND FILE MANAGING METHOD USED IN THE SAME}

The present invention relates to an image capturing apparatus capable of transferring information recorded on an internal recording medium to an external recording apparatus, and a file management method used for the image capturing apparatus.

Background Art Conventionally, a photographing apparatus incorporates a recording medium such as an optical disk, a semiconductor memory, a hard disk drive (HDD), and records data such as audio data, still image data, moving image data, or the like on the recording medium, or records the data. It has a function of playing back from a recording medium. Although a video camera (camcorder), an electronic still camera, etc. are mentioned as an imaging device, a video camera is demonstrated as an example below. As the above-described optical disk, a DVD (Digital Versatile Disk) having a diameter of 8 cm is adopted. As the semiconductor memory, a SD (Secure Digital) memory card, a compact flash (registered trademark), a memory stick (registered trademark) and the like are employed. In the following description, audio data, still image data, and moving image data are collectively referred to as photographing data.

Since the capacity of the recording medium built into these video cameras is finite, it is necessary to move the captured data to the data backup area of the external recording apparatus before the remaining recording capacity of the recording medium is insufficient. For example, a personal computer (PC) is mentioned as an external recording device. The external recording apparatus will be described below as a PC. The video camera can be connected to a PC by wire using a universal serial bus (USB), IEEE 1394 or the like, or wireless using IEEE 802.11a / b / g or the like. The connection between the video camera and the personal computer enables the transfer of captured data to the data backup area of the personal computer. For example, as a data backup area, an HDD built into a PC, a DVD having a diameter of 12 cm, or the like is used.

By the way, when the shooting data is copied from the recording medium built into the video camera to the data backup area of the PC, the shooting data recorded on the recording medium in the video camera becomes unnecessary. On the other hand, when the shooting data is moved from the recording medium in the video camera to the data backup area of the PC, the data recorded on the recording medium in the video camera does not remain. However, when the shooting data is moved, there is a possibility that the shooting data is erroneously deleted due to a lack of capacity of the recording medium of the PC, a bad state of the connection cable, an unexpected accident, and the like. Patent document 1 describes a transmission system of an image data (photographing data) file for preventing this erroneous deletion from an electronic still camera as an example.

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2002-252825

In a conventional system for transferring image data files, a user operates an electronic still camera to copy the image data file to a PC. After the PC receives the image data file, the PC transmits a reception completion signal to the electronic still camera to delete the image data file in the electronic still camera. Therefore, it was a system structure which is a side (host) which an electronic still camera operates, and becomes a side (device) which a PC operates.

On the other hand, by connecting a PC to a peripheral device via USB and using an Explorer attached to an operating system (OS) such as Windows (registered trademark), it is possible to transfer shooting data from the peripheral device to the PC. In the above, the peripheral device is recognized as one drive from the PC side by the specification called USB mass storage class. Therefore, the user can easily transfer or delete the photographing data from the recording medium in the peripheral device to the PC by the normal drag and drop operation. At present, there are many peripheral devices corresponding to this USB mass storage class. Video cameras can also be used as peripherals that meet this specification.

However, in this case, it becomes the side (host) which a PC operates, and becomes the side (device) with which a video camera is operated. Since the video camera serving as the device is in a state in which the shooting data cannot be freely controlled, it is difficult to reliably detect and delete the shooting data that has been copied to the PC.

SUMMARY OF THE INVENTION The present invention has been made in view of the foregoing, and a photographing apparatus in which a photographing apparatus detects information of photographing data that has completed copying to a data backup area of a PC and can simply select and delete the photographing data thereof, It is an object to provide a file management method used for a photographing apparatus.

SUMMARY OF THE INVENTION The present invention provides a photographing apparatus and a file identification method used for the photographing apparatus in order to solve the above problems of the prior art.

In the photographing apparatus 1 which can be connected to the external recording apparatus 2 by wire or wirelessly, photographing means 11, 12, 13, 14 for photographing a subject and outputting photographing data, and photographing photographed by the photographing means. First recording means 14 for recording data in the recording medium 17 as one or a plurality of clusters to which first cluster information has been given, and managing one or a plurality of clusters as one data file, and an external recording device. And receiving means 14 for receiving a control signal supplied by the external recording apparatus when the external recording apparatus reads any one of the plurality of data files recorded on the recording medium while the photographing apparatus is connected. When the control signal is determined as a copy command by the copy command discrimination means 14 for discriminating whether or not the control signal is a copy command for copying the data file, and the copy command discrimination means. And second recording means 14 for reading the first cluster information corresponding to the photographing data in the data file read by the external recording apparatus and recording it on the recording mediums 17 and 19 as the second cluster information. Detection means 14 for comparing all the first cluster information and the second cluster information included in the recorded one data file to detect a data file in which the first cluster information and the second cluster information coincide, as a copy-completed data file. ), And the image capturing apparatus including the data file for which copying detected by the detecting means is completed, and the identification enabling means 14 for making it possible to identify a data file not copied.

The identification enabling means includes a folder creating means for creating a folder on the recording mediums 17 and 19, and a file for moving a data file detected as being copied by the detecting means in a folder created by the folder creating means. It is an imaging device provided with a moving means.

In addition, the identification enabling means includes list file creation means for creating a list file on the recording mediums 17 and 19, and data detected as being copied by the detection means with respect to the list file created by the list file creation means. An imaging device comprising file information recording means for recording information of a file.

The identification enabling means includes thumbnail image creating means for creating a thumbnail image on the recording medium from data files recorded on the recording mediums 17 and 19, and data for which copying detected by the detection means is completed. An imaging apparatus comprising display means for distinguishing and displaying a file and a data file not copied.

In addition, the recording media 17 and 19 are imaging devices which consist of a hard disk drive.

Moreover, it is a photographing apparatus provided with the 1st recording medium 17 which records imaging data, and the 2nd recording medium 19 different from the 1st recording medium which records 2nd cluster information.

In addition, the first recording medium 17 is an imaging device made of a hard disk drive.

Furthermore, in the file management method used for the recording device 1 which can be connected to the external recording device 2 by wire or wirelessly, a shooting step of shooting a subject and outputting shooting data, and shooting data taken by the shooting step. Is recorded in the recording medium 17 as one or a plurality of clusters to which first cluster information is given, and the first recording step of managing one or a plurality of clusters as one data file, an external recording apparatus and an imaging apparatus, In the connected state, when the external recording apparatus reads any one of the plurality of data files recorded on the recording medium, a receiving step of receiving a control signal supplied by the external recording apparatus, and the control signal are used to read the data file. The copy command determination step of discriminating whether or not to copy or not is a copy command for copying, and the copy command discrimination means cause the control signal to be copied. If it is determined, the second recording step of reading the first cluster information corresponding to the shooting data in the data file read out by the external recording apparatus and recording it on the recording medium as the second cluster information, and one piece of data recorded on the recording medium. A detection step of comparing all the first cluster information and the second cluster information included in the file to detect a data file in which the first cluster information and the second cluster information coincide, as a copy-completed data file, and detecting by the detection step A file management method including an identification enablement step for identifying a data file in which the copied copy is completed and a data file that is not copied.

The identification enablement step includes a folder creation step of creating a folder on the recording mediums 17 and 19, and a data file detected as having been copied in the detection step within the folder created by the folder creation step. A file management method including a file moving step.

The identification enable step includes a list file creation step of creating a list file on the recording mediums 17 and 19, and a copy of the data file detected as being copied in the detection step with respect to the list file created by the list file creation step. A file management method including a file information recording step of recording information.

The identification enable step includes a thumbnail image creation step of creating a thumbnail image on a recording medium from a data file recorded on the recording mediums 17 and 19, and a data file of which copying detected in the detection step is not copied. A file management method including a display step of distinguishing and displaying data files.

According to the present invention, since the photographing apparatus and the file management method used for the photographing apparatus have the above-described configuration, even when the photographing apparatus is a device, copying to the data backup area of the external recording apparatus on the photographing apparatus side is prevented. The completed photographing data can be detected. Therefore, the imaging data recorded on the recording medium in the imaging apparatus can be easily selected and deleted. That is, when copying the shooting data by connecting the external recording device and the photographing device, the photographing device detects the information of the photographing data copied to the data backup area of the external recording device, and, for example, SDRAM (Synchronous Dynamic Random) in the photographing device. Access Memory). Therefore, the photographing apparatus can easily distinguish and display the data file composed of the photographed data which has been copied and the data file which is not copied. After the copying is completed, the user can simply select the data file on which the copying to the external recording apparatus is completed by operating the photographing apparatus main body, and delete the data file from the recording medium in the photographing apparatus.

Hereinafter, a video camera according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7. 1 is a block diagram showing a configuration example of a video camera according to an embodiment of the present invention. 2 is a diagram showing an example of a FAT file system according to an embodiment of the present invention. 3 is a flowchart showing a series of flows of data file copying in the embodiment of the present invention. 4 is a flow chart showing a series of flows of copied data file detection in the embodiment of the present invention. Fig. 5 is a flowchart showing a series of flows of data file deletion in the embodiment of the present invention. Fig. 6 is a diagram showing an example of a specific screen of data file deletion in the embodiment of the present invention. 7 is a diagram showing another example of a specific screen of data file deletion in the embodiment of the present invention.

1 is a block diagram showing a configuration example of a video camera according to an embodiment of the present invention. Hereinafter, although a video camera is demonstrated as an example, it is not limited to a video camera, You may be imaging equipment, such as an electronic still camera, which has the same function. First, the case where recording data is recorded by the video camera 1 is demonstrated. The optical system 11 projects incident light from a subject onto a Charge Coupled Devices (CCD) 12. The CCD 12 converts light from a subject obtained from the optical system 11 into an electric signal, and supplies the electric signal to an analog front end 13. In addition, the signal processing block 14 described later outputs a synchronization signal to the timing generator / V driver 15 which functions as a vertical driver of the CCD 12. The timing generator / V driver 15 generates a timing signal based on this synchronization signal, and outputs a CCD drive signal for operating the CCD 12 based on the timing signal. The operation of the CCD 12 is controlled by this CCD drive signal.

The analog front end 13 removes noise of the electrical signal supplied from the CCD 12, performs analog to digital (AD) conversion, and supplies the signal to the signal processing block 14. The signal processing block 14 is equipped with a dedicated micon for signal processing control. In addition, the signal processing block 14 performs predetermined processing on the signal supplied from the analog front end 13 based on the program stored in the ROM (Read Only Memory) 16. That is, signal processing such as MPEG codec compression for moving pictures, AC3 codec compression for audio, JPEG codec compression for still pictures, and the like is performed to generate photographed data. The shooting data is written to the recording medium 17 built in the video camera 1 or connected via a connector. In addition, one or a plurality of photographing data is managed as one data file and recorded in the recording medium 17 by a method described later. In addition, the recording medium 17 is preferably an HDD, a semiconductor memory, a DVD, or the like, and is particularly effective when the recording medium 17 is composed of a recording medium that cannot be easily taken out of the video camera 1 such as an HDD.

The above-described data file can be displayed by the display monitor 18 such as a liquid crystal attached to the video camera 1. In addition, the display monitor 18 can also display a thumbnail image which will be described later. The data file can also be supplied to the video input / output terminals Video I / O and Audio I / O, and displayed on the externally connected display device 21. It is also possible to transfer the data file to the external recording device 2. Here, the external recording device 2 will be described as a PC 2. Between the video camera 1 and the PC 2, a wired connection such as USB or IEEE 1394 or a wireless connection such as IEEE 802.11g or Wireless USB is possible. Hereinafter, the video camera 1 and the PC 2 will be described as being connected by USB.

When the video camera 1 and the PC 2 are connected by USB, the PC 2 side has a configuration in which the recording medium 17 of the video camera 1 is recognized as one drive. That is, the video camera 1 is a device corresponding to the above USB mass storage class specification. Therefore, the PC 2 is a host and the video camera 1 is a device, and the PC 2 reads or records a data file recorded on the recording medium 17 of the video camera 1. 17) Data files can be rewritten and deleted.

However, since the data file in the video camera 1 can be rewritten or deleted from the PC 2, the data file on the recording medium 17 in the video camera 1 may be erroneously deleted during copying. . For example, as a factor to be deleted, a misoperation of the PC 2 by the user, a lack of recording capacity on the PC 2 side serving as a reception side of the shooting data, a limitation on the number of files and file sizes that can be transferred, The defect of the state of the PC 2, the disconnection of the connection signal line, the interruption of the power supply of the video camera 1, or the PC 2, etc. are mentioned.

For this reason, the video camera 1 is provided with a mode (PC write prohibition mode) in which the data file on the recording medium 17 cannot be deleted or rewritten. This mode is a mode in which a flag is set so that data files on the recording medium 17 of the video camera 1 cannot be deleted or rewritten by a setting menu, a dedicated switch, or the like. By providing this mode, the data file on the recording medium 17 of the video camera 1 is protected even in the case of an unexpected accident.

Fig. 2 shows an example in which a FAT (File Allocation Table) file system is used as a storage of a data file. In the FAT file system, sectors on the recording medium 17 are collectively managed in units called clusters. One photographing data is allocated to one cluster. The data file is composed of one or a plurality of photographing data corresponding to the number of clusters included in the file. The number of clusters included in one data file, that is, the number of photographing data is based on the photographing time.

In a cluster called FAT, the next cluster number corresponding to the continuous information of the shooting data is recorded in a cluster. In addition to the FAT table, there is a table called a directory. The directory stores the file name and information of the leading cluster number. In addition, in the data area, one shooting data is allocated to one cluster, and all the shooting data is recorded. Here, one cluster number assigned to one piece of photographing data is referred to as first cluster information.

In the FAT file system shown in Fig. 2, data files of "A", "B", and "C" are recorded. In the data file "A", the data files of the shooting data "a1", "a2", and "B" are included in the data files of the shooting data "b1", "b2", "b3", and "C". Are included. For example, when reading the data file "A", the information of the head cluster number "0" is obtained by referring to the file name "A" of the directory. Next, with reference to this leading cluster number "0" in FAT, information of the next cluster number "1" is obtained. Further, in the FAT, with reference to this cluster number "1", information of the next cluster number "end" is obtained. "End" means that it was the last cluster number of the photography data contained in the file. And the imaging data "a1" and "a2" of the data area corresponding to this cluster number "0" and "1" are read.

As described above, the recording medium 17 of the video camera 1 is recognized from the PC 2 as one drive. Therefore, the video camera 1 side cannot determine whether the reading of the data file by the PC 2 is simply performed for reproduction or otherwise for copying. Thus, the PC 2 reads a signal (reproduction command) to be read for simple reproduction or a signal (copy command) to be read for copying by the CPU (Central Processing Unit) 22 (FIG. 1) by the instruction of the bus 24. It supplies to the video camera 1 side via (FIG. 1). The video camera 1 can determine whether or not to proceed with the process of specifying the read data file to be described later based on these signals. The program for supplying these signals is stored in advance in the PC 2 by installing software or the like.

3 shows a flowchart for copying a data file from the video camera 1 to the PC 2. Initially, the video camera 1 is connected to the PC 2 by USB (FIG. 3, step S01). Next, it is determined whether or not the signal supplied from the PC 2 is a copy command (FIG. 3, step S02). If it is not a copy command (in the case of a playback command) (N), the data file is read for playback on the PC 2. Therefore, since the data file read from the recording medium 17 of the video camera 1 cannot be deleted, the process of recording the cluster number is not performed. Then, the data file is read from the recording medium 17 of the video camera 1 for reproduction by the PC 2 (FIG. 3, step S06). After the reading for reproduction ends, the connection with the PC 2 is disconnected and the process ends (FIG. 3, step S05).

In the case of a copy command in step S02 (Y), the signal processing block 14 of the video camera 1 determines whether or not all data files have been copied (FIG. 3, step S03). If all data files have been copied to the PC 2 (Y), the connection with the PC 2 is cut off, and the recording process of the cluster number described later is terminated (FIG. 3, step S05). If a data file to be copied to the PC 2 remains (N), the transfer of the data file is started. The data file is transferred for each shooting data contained in the file. The signal processing block 14 records the cluster number of the transferred photographing data in the SDRAM 19 (FIG. 1) as the second cluster information (FIG. 3, step S04). Then, the process returns to step S03. In addition, the SDRAM 19 is a recording device capable of temporarily holding recorded contents that cannot be accessed from the PC 2 side.

In addition, when copying from the recording medium 17 of the video camera 1 to the data backup area 23 (FIG. 1) of the PC 2, the CPU 22 in the PC 2 is connected to the video camera 1 Information on the FAT and the directory on the recording medium 17 is read, and the photographing data recorded in the data area (Fig. 2) is copied from the information. The data backup area 23 is composed of an HDD, a semiconductor memory, a DVD, and the like.

4 shows a flowchart for detecting a file copied from the video camera 1 to the PC 2. After the connection between the video camera 1 and the PC 2 is disconnected (FIG. 3, step S05), the signal processing block 14 is copied to the SDRAM 19 in order to move the data file which may be copied and deleted. (Step 4, step S11). In addition, new folder names are added to indicate that deletion or copying has been completed (for example, "delete", "copied"), and information such as the date and time of copying (for example, PC20061102 # 1042). You may also

Then, it is judged whether or not there is a cluster number (second cluster information) recorded in the SDRAM 19 (step S12). If no cluster number is recorded (N), the process ends. If there is a recorded cluster number (Y), one cluster number recorded in the SDRAM 19 is read out (Fig. 4, step S13).

Next, it is judged whether or not the head cluster number in the directory (Fig. 2) and the cluster number read in step S13 match (Fig. 4, step S14). If both cluster numbers do not match (N), the read cluster number is read-completed (FIG. 4, step S20), and it progresses to step S19 mentioned later. If both cluster numbers match (Y), all cluster numbers (first cluster information) in the data file including the cluster number are obtained from the FAT information (FIG. 4, step S15). It is determined whether or not all cluster numbers (first cluster information) in the data file are cluster numbers (second cluster information) recorded in the SDRAM 19 (Fig. 4, step S16).

In step S16, when only a part of the cluster number (second cluster information) is recorded in the SDRAM 19 for the cluster number (first cluster information) to be included in one data file (N), the PC 2 Since copying is not completed in the data backup area 23 in a complete form, the data file is not moved into the new folder, and the flow proceeds to step S18 described later. When all the cluster numbers (second cluster information) are recorded in the SDRAM 19 (Y), since the copy is completed in a complete form in the data backup area 23 of the PC 2, the recording medium 17 The data file is moved to the new folder created in step S11 (Fig. 4, step S17). Then, all cluster numbers (second cluster information) in the data folder are deleted from the SDRAM 19 (FIG. 4, step S18). In this manner, it is possible to identify a data file for which copying is completed and a data file for which copying is not completed.

Then, it is judged whether or not the cluster number (second cluster information) which has not been read once is recorded in the SDRAM 19 (FIG. 4, step S19). If there is no cluster number (second cluster information) that has never been read (N), the process ends. If there is a cluster number (second cluster information) that has never been read (Y), the process returns to step S13 and the same process is repeated. As described above, file management is performed by specifying the data file to which copying is completed.

Here, the flowchart shown in FIG. 3, 4 is demonstrated based on a specific example. For example, the cluster number (second cluster information) read for copying from the CPU 22 of the PC 2 and recorded in the SDRAM 19 of the video camera 1 is "0, 1, 2, 3". Consider the case. The signal processing block 14 reads the cluster number "0" from the SDRAM 19. By referring to the directory, information is obtained that the cluster number "0" matches the first cluster number. And with reference to FAT, the information that all the cluster numbers (1st cluster information) of the file are "0, 1" is acquired. The cluster numbers (second cluster information) "0, 1" are all recorded in the SDRAM 19. Therefore, the file "A" corresponding to the cluster numbers "0, 1" is completely copied to the data backup area 23 of the PC 2. Therefore, the file "A" is detected as being copied and moved to a new folder, and the cluster numbers (second cluster information) "0, 1" are deleted from the SDRAM 19.

Similarly, the remaining cluster numbers "2, 3" will be described. The signal processing block 14 reads the cluster number "2" from the SDRAM 19. With reference to the directory, cluster number " 2 " When the FAT is referred to, information indicating that all cluster numbers (first cluster information) of the file is "2, 3, 6" is obtained. The cluster number "6" included in the cluster numbers "2, 3, 6" is not recorded in the SDRAM 19. Therefore, the file "B" corresponding to the cluster numbers "2, 3, 6" has completed processing during copying to the data backup area 23 of the PC 2. Therefore, the file "B" is detected as not being copied and the file "B" is not moved to the new folder. Then, the cluster numbers (second cluster information) "2, 3" are deleted from the SDRAM 19.

Although the above description has demonstrated the detection method on the video camera 1 side, it is good also as a structure which detects whether the data file was completely copied on the PC 2 side. When the video camera 1 and the PC 2 are connected, the PC 2 reads in advance all file sizes recorded on the recording medium 17 of the video camera 1. After copying from the recording medium 17 of the video camera 1 to the data backup area 23 of the PC 2, the copied file size and the previously read file size are compared. If both file sizes are the same, all data files are read. The PC 2 transmits a copy completion signal to the video camera 1. The video camera 1 side which has received the copying completed signal performs processing of the data file in the recording medium 17 as copying is completed.

Next, a method of deleting the data file detected as being copied is described with reference to FIGS. 5 and 6. Fig. 5 shows a flowchart for deleting a file whose copy has been completed. Fig. 6 shows an example of a specific screen up until the copying is deleted.

First, in order to select image display or file deletion, the signal processing block 14 displays the "image display selection screen" (Fig. 6 (a)) on the display monitor 18 (Fig. 5, step S21). From the displayed "image display selection screen", it is determined whether "end" (Fig. 6 (a)) is selected or not (Fig. 5, step S22). When "end" is selected by the user, the process ends. When other than "end" is selected, it is judged whether or not the copied file "PC copy information display" (Fig. 6 (a)) is selected (Fig. 5, step S23). If "image display" (Fig. 6 (a)) is selected by the user (N), the process of deleting the data file is not performed, and the process proceeds to the process of displaying a predetermined image (Fig. 5, step S28). Since the present invention relates to a method for deleting a data file, the image display after step S28 is omitted.

When "PC copy information display" is selected by the user (Y), the "Delete file selection screen" (Fig. 6 (b)) is displayed to select a data file to be deleted from the data files moved to the new folder ( 5, step S24). In the "delete file selection screen", information such as the date and time related to the data file copied to the PC 2 is displayed. When any deleted file is selected from the "delete file selection screen" by the user, the "delete file confirmation screen" (Fig. 6 (c)) is displayed (Fig. 5, step S25). For example, a "Do you want to delete 2005/10/18 PC copy file?" Screen is displayed as the "delete file confirmation screen" to judge whether or not "YES" (Fig. 6 (c)) is selected (Fig. 6, step S26).

If "NO" is selected from the "delete file confirmation screen" by the user (N), the flow returns to step S21. When "YES" is selected from the "Delete file confirmation screen" (Y), the signal processing block 14 deletes the data file selected in step S24 (FIG. 5, step S27). Thereafter, the process returns to step S21 and the same process is repeated. It is also possible to select a plurality of data files to be deleted in step S21.

Fig. 7 shows another example of a specific screen up until the copying of the data file is completed. First, in order to select an image display or another menu, the signal processing block 14 displays the "image display selection screen" (Fig. 7 (a)) on the display monitor 18. Then, when " image display " (Fig. 7 (a)) is selected by the user, the signal processing block 14 is a thumbnail of the data file recorded in the recording medium 17 and the SDRAM 19 in the SDRAM 19. Create an image. Then, the "thumbnail image display screen" (Fig. 7 (b)) is displayed. In addition, a thumbnail image is not limited to the case where it is created when "image display" (FIG. 7 (a)) is selected. For example, a method of creating a thumbnail image when recording data is recorded on the recording medium 17 and recording the thumbnail image on the recording medium 17 may be used.

When displaying the thumbnail image, the data file of which copying is completed in the data backup area 23 of the PC 2 is displayed so that the copying image is known to the thumbnail image. For example, it is a display of "PC copy" shown in Fig. 7B. In addition, information such as date and time may be displayed on the thumbnail image of the data file after copying is completed. By displaying as described above, it is possible to identify a data file for which copying is completed and a data file for which copying is not completed.

When one of the thumbnail images is selected by the user, a "delete file confirmation screen" (Fig. 7 (c)) is displayed. For example, as a "delete file confirmation screen", the display "Do you want to delete the PC copy file?" (Fig. 7 (c)) appears. If "YES" (Fig. 7 (c)) is selected from the "delete file confirmation screen" by the user, the signal processing block 14 deletes the selected file. The file may be deleted by canceling the "PC write prohibition mode" and accessing the video camera 1 from the PC 2.

In the above-described embodiment, the method of enabling identification of the data file of which copy has been completed and the data file of which copy has not been completed has been described as moving the data file of which copy has been completed to a folder or displaying them by thumbnail images. However, it may be possible to identify the data file name after copying to the list. For example, in step S11, a new copy completion list is created in the SDRAM 19. In step S17, the file name is recorded in this copy completion list. In the copy complete file, information of the PC 2 such as the file name, the date and time of the copy, and the computer name, model number, and operation user name obtained by communication may be added. It is also possible to create both a new folder and a new copy complete list. The shooting data is recorded on the recording medium (first recording medium), and a new folder or a new copy completion list has been described as being created in the SDRAM 19 (second recording medium), but a new folder or a new copy completion list is recorded. It may be made on the medium 17 (first recording medium). Instead of creating a new folder or a new list, the copy completion flag may be set only by the data file that has been copied, and the data file may be deleted based on this flag.

In addition, in the above-described embodiment, the video camera 1 side is a file management method of detecting a data file of which copy has been completed and informing the user, and giving an instruction to delete the file based on the user. However, the video camera 1 side may detect a data file for which copying is completed, and may also delete the detected data file automatically.

In addition, although the transmission method by USB connection and USB mass storage class was demonstrated, what is necessary is just the transfer method which has the function equivalent to it. For example, the operation on the PC 2 side described above is made by connecting the video camera 1 and the PC 2 with a wireless LAN and using a communication protocol called PTP / IP (Picture Transfer Protocol over Internet Protocol). This is possible.

The photographing apparatus and the file management method used for the photographing apparatus according to the present invention can be applied to a video camera, an electronic still camera, or the like configured to be connected to an external recording device and to transmit a data file.

1 is a block diagram showing a configuration example of a video camera according to an embodiment of the present invention.

2 is a diagram illustrating an example of a FAT file system according to an embodiment of the present invention.

3 is a flowchart showing a series of flows of data file copying in the embodiment of the present invention.

4 is a flow chart showing a series of flows of copied data file detection in the embodiment of the present invention.

Fig. 5 is a flowchart showing a series of flows of data file deletion in the embodiment of the present invention.

Fig. 6 is a diagram showing an example of a specific screen of data file deletion in the embodiment of the present invention.

7 is a diagram showing another example of a specific screen of data file deletion in the embodiment of the present invention.

(Explanation of symbols for the main parts of the drawing)

1: video camera (shooting device)

2: external recording device (PC: personal computer)

11: optical system (shooting means)

12: CCD (shooting means)

13: analog front end (shooting means)

14: signal processing block (photographing means, first recording means, receiving means, discriminating means, second recording means, detecting means, identifying enablement means)

15: Timing Generator / V Driver

16: ROM

17: recording medium

18: display monitor

19: SDRAM (recording medium)

21: display device

22: CPU

23: data backup area

24: bus

Claims (11)

In the imaging device that can be connected to the external recording device by wire or wirelessly, Photographing means for photographing a subject and outputting photographing data; First recording means for recording the photographing data photographed by the photographing means as one or a plurality of clusters to which first cluster information is assigned, and managing the one or a plurality of clusters as one data file; When the external recording device reads any one of the plurality of data files recorded on the recording medium while the external recording device and the photographing device are connected, the control signal supplied by the external recording device is received. Receiving means to say, Copy command discrimination means for discriminating whether or not said control signal is a copy command for copying said data file; When the control signal is determined by the copy command by the copy command determining means, the first cluster information corresponding to the photographing data in the data file read out by the external recording apparatus is read out, and the recording medium is read as the second cluster information. Second recording means for recording in the; Comparing all the first cluster information and the second cluster information included in one data file recorded on the recording medium, the data file in which the first cluster information and the second cluster information are identical is copied as a data file. Detecting means for detecting, Identification enabling means for identifying the data file for which copying is completed and the data file not copied by the detecting means can be identified. Photographing apparatus comprising a. The method of claim 1, The identification enabling means, Folder creating means for creating a folder on the recording medium; File moving means for moving the data file detected as copy completed in the detecting means in the folder created by the folder creating means; Photographing apparatus comprising a. The method of claim 1, The identification enabling means, List file creating means for creating a list file on the recording medium; File information recording means for recording the information of the data file detected as copying completed in the detection means with respect to the list file created by the list file creating means Photographing apparatus comprising a. The method of claim 1, The identification enabling means, Thumbnail image creation means for creating a thumbnail image on the recording medium from a data file recorded on the recording medium; Display means for distinguishing and displaying the detected data file from which copying has been completed and data files which have not been copied. Photographing apparatus comprising a. The method according to any one of claims 1 to 4, And the recording medium is a hard disk drive. The method according to any one of claims 1 to 4, And a first recording medium for recording the photographing data, and a second recording medium different from the first recording medium for recording the second cluster information. The method of claim 6, And the first recording medium is a hard disk drive. In the file management method used in the recording device that can be connected to the external recording device by wire or wirelessly, A shooting step of shooting a subject to output shooting data; A first recording step of recording the photographing data photographed by the photographing step as one or a plurality of clusters to which first cluster information is given, and managing the one or a plurality of clusters as one data file; When the external recording device reads any one of the plurality of data files recorded on the recording medium while the external recording device and the photographing device are connected, the control signal supplied by the external recording device is received. With the reception step to say, A copy command determination step of determining whether or not the control signal is a copy command for copying the data file; In the copy command determination step, when the control signal is determined as the copy command, the first cluster information corresponding to the photographing data in the data file read by the external recording device is read, and the recording medium is read as the second cluster information. A second recording step for recording to Comparing all the first cluster information and the second cluster information included in one data file recorded on the recording medium, the data file in which the first cluster information and the second cluster information are identical is copied as a data file. A detection step to detect, An identification enablement step that makes it possible to identify the data file for which copying is completed and the data file that has not been copied by the detecting step. File management method comprising a. The method of claim 8, The identification enablement step, A folder creating step of creating a folder on the recording medium; A file moving step of moving the data file detected as copy completed in the detecting step in the folder created by the folder creating step. File management method comprising a. The method of claim 8, The identification enablement step, A list file creating step of creating a list file on the recording medium; A file information recording step of recording information of the data file detected as copying completed in the detection step, with respect to the list file created by the list file creating step. File management method comprising a. The method of claim 8, The identification enablement step, A thumbnail image creation step of creating a thumbnail image on the recording medium from a data file recorded on the recording medium; A display step of distinguishing and displaying the data file for which copying detected in the detection step is completed and the data file that has not been copied. File management method comprising a.

Images