JP4208730B2 - Data editing apparatus and method, and imaging apparatus - Google Patents

Description

  The present invention relates to a data editing apparatus and method having a function of editing a file stored in a recording medium and writing the edited result to the recording medium as a new file.

  For example, in a data editing apparatus realized by a portable personal computer or the like, if it is detected that the battery capacity is insufficient while editing data and writing the edited result as a separate file, the battery capacity is insufficient. This message is displayed on the screen, and the user is prompted to connect the DC adapter or perform a shutdown operation. There is also a method in which the battery capacity is measured before the data editing / writing process, and if the battery capacity is insufficient, the writing operation is not executed (see, for example, Patent Document 1).

Japanese Patent No. 2925410

  However, depending on the situation such as the data size to be written and the writing speed of the recording medium, the time required for the writing process may be very long. In this case, when the battery capacity necessary for the writing process is predicted in advance, the prediction error increases. If the required capacity is increased in anticipation of a prediction error, a situation occurs in which the writing process is prohibited even though the battery is slightly consumed.

  Conversely, when the process for measuring the battery capacity is not performed in advance, or when a sufficient prediction error is not expected, the battery capacity may decrease during the writing process, resulting in a low battery. In this case, since the writing process is stopped, the data already written up to that point is incompletely formatted and remains on the recording medium as unusable data, which wastes the memory area of the recording medium. A problem arises.

  Also, in the method of prompting the user's operation by displaying on the screen when the battery becomes low during the data writing process, if the user does not immediately take action, the battery is consumed as it is. Therefore, there is a problem that unusable data in the middle of writing remains on the recording medium and wastes the memory area of the recording medium.

  An object of the present invention is to provide a data editing apparatus and method capable of avoiding wasteful consumption of a memory area of a recording medium due to incomplete format data remaining on the recording medium due to file writing being stopped. It is.

The above-described problems are solved by the data editing apparatus and method of the present invention. A data editing apparatus according to an aspect of the present invention edits a first file read from the recording medium, a control unit that controls recording processing of data on the recording medium, and sets the editing result as a second file. Editing means for generating and detecting means for detecting a power supply voltage during the process of writing the second file to the recording medium, and the power supply voltage detected by the detecting means has a first threshold value. And when the time until the editing by the editing unit is completed is longer than the time for deleting the data related to the second file already written in the storage medium, the control unit The writing process of the second file is stopped and the data related to the second file already written on the recording medium is deleted and detected by the detecting means. The time when the power supply voltage is lower than the first threshold and the time until the editing by the editing means is completed is the time for deleting the data related to the second file already written in the storage medium If shorter, the control means continues the writing process of the second file .

According to another aspect of the present invention, there is provided a data editing method, wherein a control unit controls a recording process of data on a recording medium, and the editing unit edits a first file read from the recording medium. An editing step for generating the editing result as a second file, and a detecting step for detecting a power supply voltage during the process of writing the second file to the recording medium. The power supply voltage detected in the step is lower than the first threshold value, and the time until the editing in the editing step is completed relates to the second file already written in the storage medium. If it is longer than the time to delete data, the control step stops the writing process of the second file and the data has already been written to the recording medium. Time when the data related to the second file is deleted, the power supply voltage detected in the detection step is lower than a first threshold, and the editing in the editing step is completed If it is shorter than the time to delete the data related to the second file already written in the storage medium, the control step continues the writing process of the second file .

  There is provided a data editing apparatus and method capable of avoiding wasteful consumption of a memory area of a recording medium due to incomplete format data remaining on the recording medium due to interruption of file writing.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Hereinafter, as one embodiment, an imaging apparatus to which the data processing apparatus of the present invention is applied will be described. However, the present invention is not limited to the imaging apparatus, and can be applied to other information processing apparatuses that read / write files.

(Circuit configuration of the imaging device)
FIG. 1 is a block diagram showing a configuration of an imaging apparatus to which a data processing apparatus of the present invention is applied.

  In FIG. 1, reference numeral 100 denotes an image pickup apparatus main body. 10 is a photographing lens, 12 is a shutter having a diaphragm function, 14 is an image sensor (for example, a CCD) that converts an optical image into an electrical signal, and 16 is an A / D converter that converts an analog signal output of the image sensor 14 into a digital signal. It is.

  A timing generation circuit 18 supplies a clock signal and a control signal to the image sensor 14, the A / D converter 16, and the D / A converter 26, and is controlled by the memory control circuit 22 and the system control circuit 50.

  An image processing circuit 20 performs predetermined pixel interpolation processing and color conversion processing on the data from the A / D converter 16 or the data from the memory control circuit 22. The image processing circuit 20 performs predetermined calculation processing using the captured image data, and the system control circuit 50 controls the exposure control unit 40 and the distance measurement control unit 42 based on the obtained calculation result. TTL (through-the-lens) AF (autofocus) processing, AE (automatic exposure) processing, and EF (flash pre-emission) processing are performed. Further, the image processing circuit 20 performs predetermined arithmetic processing using the captured image data, and also performs TTL AWB (auto white balance) processing based on the obtained arithmetic result.

  A memory control circuit 22 controls the A / D converter 16, the timing generation circuit 18, the image processing circuit 20, the image display memory 24, the D / A converter 26, the memory 30, and the compression / decompression circuit 32.

  The data of the A / D converter 16 is written into the image display memory 24 or the memory 30 via the image processing circuit 20 and the memory control circuit 22 or the data of the A / D converter 16 is directly passed through the memory control circuit 22. It is.

  Reference numeral 24 denotes an image display memory, 26 denotes a D / A converter, 28 denotes an image display unit including a TFT LCD, and the image data for display written in the image display memory 24 passes through the D / A converter 26. Displayed by the image display unit 28.

  If the image data captured using the image display unit 28 is sequentially displayed, the electronic viewfinder function can be realized. The image display unit 28 can arbitrarily turn on / off the display according to an instruction from the system control circuit 50. When the display is turned off, the power consumption of the image processing apparatus 100 can be greatly reduced. I can do it.

  Reference numeral 30 denotes a memory for storing captured still images and moving images, and has a sufficient storage capacity to store a predetermined number of still images and a predetermined time of moving images. Thereby, even in the case of continuous shooting or panoramic shooting in which a plurality of still images are continuously shot, it is possible to write a large amount of images to the memory 30 at high speed. The memory 30 can also be used as a work area for the system control circuit 50.

  Reference numeral 32 denotes a compression / decompression circuit that compresses and decompresses image data by adaptive discrete cosine transform (ADCT) or the like, reads an image stored in the memory 30, performs compression processing or decompression processing, and stores the processed data in the memory 30. Write to.

  Reference numeral 40 denotes an exposure control unit that controls the shutter 12 having an aperture function, and has a flash light control function in cooperation with the flash 48.

  Reference numeral 42 denotes a distance measurement control unit that controls focusing of the photographing lens 10, 44 denotes a zoom control unit that controls zooming of the photographing lens 10, and 46 denotes a barrier control unit that controls the operation of the barrier 102 for protecting the photographing lens 10. is there. A flash 48 has an AF auxiliary light projecting function and a flash light control function.

  The exposure control unit 40 and the distance measurement control unit 42 are controlled using the TTL method. Based on the calculation result obtained by calculating the captured image data by the image processing circuit 20, the system control circuit 50 performs the exposure control unit 40 and the distance measurement. The controller 42 is controlled.

  Reference numeral 50 denotes a system control circuit that controls the entire imaging apparatus main body 100, and reference numeral 52 denotes a memory that stores constants, variables, programs, and the like for operation of the system control circuit 50.

  54 includes a liquid crystal display device for displaying an operation state, a message, and the like by characters and images according to execution of a program in the system control circuit 50, and a speaker for notifying the operation state, a message, etc. by sound. The display unit is provided at a single or a plurality of positions near the operation unit of the imaging apparatus main body 100 so as to be easily visible, and is configured by a combination of, for example, an LCD, an LED, and a sounding element. In addition, the display unit 54 is partially installed in the optical viewfinder 104.

  Among the display contents of the display unit 54, what is displayed on the LCD or the like includes single shot / continuous shooting display, self-timer display, compression rate display, number of recorded pixels, number of recorded pixels, number of remaining images that can be captured, shutter Speed display, Aperture value display, Exposure compensation display, Flash display, Red-eye reduction display, Macro shooting display, Buzzer setting display, Clock battery level display, Battery level display, Error display, Multi-digit number information display and recording There are a display state of the media 200 and 210, a communication I / F operation display, a date / time display, and the like.

  Further, among the display contents of the display unit 54, what is displayed in the optical viewfinder 104 includes in-focus display, camera shake warning display, flash charge display, shutter speed display, aperture value display, exposure correction display, and the like.

  Reference numeral 56 denotes an electrically erasable / recordable nonvolatile memory such as an EEPROM.

  Reference numerals 60, 62, 64, and 70 are operation means for inputting various operation instructions of the system control circuit 50, and may be a single or a combination of a switch, a dial, a touch panel, pointing by line-of-sight detection, a voice recognition device, or the like. Composed.

  Here, a specific description of these operating means will be given.

  Reference numeral 60 denotes a mode dial switch, which can switch and set various function modes such as an automatic shooting mode, a shooting mode, a panoramic shooting mode, a playback mode, a multi-screen playback / erase mode, and a PC connection mode.

  Reference numeral 62 denotes a shutter switch SW1, which is turned ON during the operation of the shutter button 309 shown in FIG. 2, and is AF (autofocus) processing, AE (automatic exposure) processing, AWB (auto white balance) processing, and EF (flash pre-flash). Instructs the start of operations such as processing.

Reference numeral 64 denotes a shutter switch SW2, which is turned on when the operation of the shutter button 309 is completed, and an exposure process for writing the image data to the memory 30 via the A / D converter 16 and the memory control circuit 22 from the signal read from the image sensor 14 . A series of development processes using operations in the image processing circuit 20 and the memory control circuit 22, a recording process in which image data is read from the memory 30, compressed by the compression / decompression circuit 32, and written to the recording medium 200 or 210. The operation start of the process is instructed.

  Reference numeral 70 denotes an operation unit including various buttons and a touch panel, and includes a SET button 302, a PLAY switch 303, an upper button 304, a right button 305, a lower button 306, a left button 307, and the like shown in FIG.

  A power control unit 80 includes a battery detection circuit, a DC-DC converter, a switch circuit that switches a block to be energized, and the like, and measures the presence / absence of a battery, the type of battery, and the remaining battery level. In addition, the DC-DC converter is controlled based on an instruction from the system control circuit 50, and a necessary voltage is supplied to each unit including the recording medium for a necessary period.

  82 and 84 are connectors, 86 is a primary battery such as an alkaline battery or lithium battery, a secondary battery such as a NiCd battery, NiMH battery, or Li battery, an AC adapter, or the like.

  90 and 94 are interfaces with a recording medium such as a memory card or a hard disk, 92 and 96 are connectors for connecting to a recording medium such as a memory card or a hard disk, and 98 is a recording medium 200 or 210 attached to the connector 92 or 96. It is a recording medium attachment / detachment detection unit that detects whether or not the recording medium is present.

  In the present embodiment, it is assumed that there are two systems of interfaces and connectors for attaching a recording medium. Of course, the interface and the connector for attaching the recording medium may have a single or a plurality of systems and any number of systems. Moreover, it is good also as a structure provided with combining the interface and connector of a different standard.

  The interface and connector may be configured using a PCMCIA card, a CF (Compact Flash (registered trademark)) card, or the like that conforms to a standard.

  In addition, when the interfaces 90 and 94 and the connectors 92 and 96 are configured using a PCMCIA card, a CF (Compact Flash (registered trademark)) card, or the like, a LAN card, a modem card, a USB card, IEEE1394. Image data and management information attached to image data are transferred to and from peripheral devices such as other computers and printers by connecting various communication cards such as cards, P1284 cards, SCSI cards, and PHS communication cards. I can meet each other.

  Reference numeral 102 denotes a barrier for preventing the imaging unit from being soiled or damaged by covering the imaging unit including the lens 10 of the image processing apparatus 100.

  Reference numeral 104 denotes an optical viewfinder, which can perform photographing using only the optical viewfinder without using the electronic viewfinder function of the image display unit 28. In the optical viewfinder 104, some functions of the display unit 54, for example, a focus display, a camera shake warning display, a flash charge display, a shutter speed display, an aperture value display, an exposure correction display, and the like are installed.

  A communication unit 110 has various communication functions such as RS232C, USB, IEEE1394, SCSI, modem, LAN, and wireless communication. Reference numeral 112 denotes a connector for connecting the imaging apparatus main body 100 to another device by the communication unit 110 or an antenna in the case of wireless communication.

  Reference numeral 200 denotes a recording medium such as a memory card or a hard disk. The recording medium 200 includes a recording unit 202 configured by a semiconductor memory, a magnetic disk, or the like, an interface 204 with the imaging apparatus main body 100, and a connector 206 for connecting to the image processing apparatus 100. Reference numeral 210 denotes a recording medium such as a memory card or a hard disk. The recording medium 210 includes a recording unit 212 composed of a semiconductor memory, a magnetic disk, or the like, an interface 214 with the imaging apparatus main body 100, and a connector 216 for connecting to the imaging apparatus main body 100.

(Appearance structure of imaging device)
FIG. 2 is an external view showing the back surface of the imaging apparatus according to the present embodiment. In the figure, reference numeral 301 denotes a liquid crystal panel corresponding to the image display unit 28 shown in FIG. Reference numerals 302 to 307 denote switches or buttons included in the operation unit 70 of FIG. More specifically, 302 is a SET button used to confirm a selected image or setting, 303 is a PLAY switch that activates the imaging apparatus in a playback mode when pressed in a standby state, and 304 to 307 are buttons for selecting a playback image. These are up / down / left / right buttons used for selecting an icon displayed on the screen.

  Reference numeral 309 denotes a shutter button for taking an image when pressed in the shooting mode, and includes shutter switches SW1 and SW2.

(Low battery detection processing)
The configuration of the imaging apparatus in the present embodiment is generally as described above, but when the system of the imaging apparatus is activated, a low battery detection process for confirming whether the power supply voltage is sufficient is performed.

  FIG. 8 is a flowchart showing a low battery detection process in the embodiment. When the system of the imaging apparatus is activated, the low battery detection process starts (S40). First, in step S41, a process interruption flag is initialized to zero. Next, power supply voltage measurement is performed (step S42). The measured power supply voltage is compared with a predetermined reference voltage (processing interruption level) (step S43). Here, if the power supply voltage is equal to or higher than the processing interruption level, the system waits for a predetermined time (step S44), returns to step S42, and repeats the power supply voltage measurement. On the other hand, if the power supply voltage does not reach the process interruption level in step S43, the process proceeds to step S45, and a process interruption flag is set (processing interruption flag = 1). When the process interruption flag is set to 1 in step S45, the low battery detection process ends (S46).

  As described above, the power supply voltage measurement in the low battery detection process is continuously performed from the start of the system until the process interruption flag is set to 1 (steps S42 to S44).

(Operation method when editing movies)
Next, an operation by a user necessary for editing a moving image with the imaging apparatus according to the present embodiment will be described.

(1) Start in playback mode First, the PLAY switch 303 is pressed to start the system in playback mode.

(2) Selection of moving image to be edited Next, the left and right keys 307 and 305 are operated to display a moving image to be edited, and the SET button 302 is pressed. Then, a moving image operation icon 401 as shown in FIG. 3 is displayed on the liquid crystal panel 301.

(3) Transition to moving image editing mode The editing mode icon 402 of the displayed moving image operation icon 401 is selected, and then the SET button 302 is pressed to shift to the moving image editing mode. Then, an editing method selection icon as shown in FIG. 4 is displayed on the liquid crystal panel 301.

(4) Selection of editing method (for example, cutting method) When the front side of the specified position is to be cut, the up and down keys 304 and 306 are operated to select the front side cut icon 503 of the displayed editing method selection icon 501 and specify it. If it is desired to cut the rear side of the position, the second half cut icon 502 is selected, and then the SET button 302 is pressed to further determine the editing method. Then, a slide bar 601 as shown in FIG. 5 is displayed on the liquid crystal panel 301.

(5) Cut position setting The left and right keys 307 and 305 are operated to designate the edit position on the edited moving image. In response to the operation of the left and right keys 307 and 305, the indicator 602 on the slide bar 601 moves to the corresponding position. Further, the time from the beginning of the moving image data at the editing position is displayed on the time display unit 603.

(6) Start processing (save method selection)
Pressing the SET button 302 starts the editing process.

(Video editing process)
FIG. 6 is a flowchart illustrating a moving image editing process performed by the imaging apparatus according to the embodiment.

  When the imaging apparatus 100 transitions to the moving image editing mode by the operation in (3) above, the imaging device 100 accepts the moving image file selected in (2) as the editing target moving image A (step S11), and opens the editing target moving image file A. (Step S12). Next, the deletion range of file A is determined (step S13). Specifically, whether to delete the front side or the rear side of the designated position is determined according to the selection operation of the editing method (4) described above. Next, the input of the edit target position of the edit target moving image file A is accepted based on the above-described cut position setting operation (5) (step S21). At this time, the input selected frame number is stored in a variable. Next, the editing subroutine S14 shown in the flowchart of FIG. 7 is executed (details will be described later). When the processing of the editing subroutine in S14 is completed, the target moving image file is closed in step S20. Thereafter, the error flag is checked (step S15). As will be described in detail later, this error flag is set to 1 when the process interruption flag is set to 1 by the low battery detection process. If this error flag is 0, that is, if no error has occurred, the moving image editing process ends normally (S17). On the other hand, if the error flag is 1, that is, if an error due to a power supply voltage drop has occurred, error display (step S19) and shutdown processing (step S16) are performed, and then the system stops (S18).

  Hereinafter, the processing of the editing subroutine of step S14 will be described using the flowchart of FIG. In this subroutine, a process of deleting a part of the moving image file A and writing it to the recording medium 200 as a new file B is performed.

  First, in step S31, an error flag indicating an error due to a drop in power supply voltage is initialized to 0, and then an editing result file B is newly opened in step S22.

  Next, in step S230, the editing method selected by the user in (4) described above is checked. If the editing method is rear deletion, the process proceeds to step S231. In step S231, the first frame number of the moving image data of the editing target file A is set as the current frame number. Also, the selected frame number input in step S21 is set as the end frame number. On the other hand, if the editing method checked in step S230 is the front side deletion, the process proceeds to step S232. In step S232, the selected frame number is set as the current frame number, and the final frame number of the moving image data of the editing target file A is set as the end frame number.

  Next, in step S24, image data of a frame corresponding to the current frame number is read from the editing target moving image file A. In step S25, the read image data is written in the editing result file B. Next, in step S26, the current frame number is incremented.

  Next, in step S27, the interruption flag of the moving image editing process is checked. This interruption flag is set in the low battery detection process described above. Here, when the interruption flag is not set (when interruption flag = 0), the process proceeds to step S28. In step S28, it is checked whether or not the current frame number exceeds the end frame number. If the condition is met, the process proceeds to step S29, and the file header and footer of the editing result file B are created to prepare the format as a moving image file. In the subsequent step S30, the created editing result file B is closed and the editing subroutine is exited (S32).

  If the condition is not satisfied in step S28, that is, if the current frame number does not exceed the end frame number, the process returns to step S24 and the process is repeated.

  In step S27, when the process interruption flag is set (when the process interruption flag = 1), the process proceeds to step S37, an error flag is set (error flag = 1), and the process interruption flag is reset to zero. Thereafter, in step S38, a time (remaining processing time) Tr required to complete the writing process of the editing result file B is calculated. The calculation of Tr is performed according to the following equation, for example.

Tr = File B unwritten data size / time required for writing per unit data amount Here, the time required for writing per unit data amount is measured each time the recording medium to be used is changed, and the value is stored. I shall keep it.

  Next, the process proceeds to step S391, where the power supply voltage is checked. As a result, if the power supply voltage falls below the emergency level that is lower than the criterion at the time of process interruption determination performed in the low battery detection process, the process proceeds to step S392. In step S392, the editing result file B is closed, and in the subsequent step S393, the file name of the original file A, which is information necessary for file restoration, the editing method specified by the user, and the selected frame number indicating the editing position specified by the user (Namely, the position to be edited), the current frame number (that is, the reading position of the original file A at the time when the process was stopped), and the file name of the editing result file B are stored in the information file C with a system-specific file name, The editing subroutine is exited (S32).

  On the other hand, if the power supply voltage is higher than the emergency level in step S391, the process proceeds to step S39. In step S39, the time Tr required to complete the writing process of the editing result file B is compared with the time Td required to delete the editing result file B written so far. Here, if the time Tr required to complete the writing process of the editing result file B is longer than the time Td required to delete the partially written editing result file B, the process proceeds to step S35 and writing is performed halfway. The edited editing result file B is closed, and in the subsequent step S36, the closed editing result file B is deleted and the editing subroutine is exited (S32).

  If it is determined in step S39 that the time Td required to delete the partially written editing result file B is equal to or longer than the time Tr required to complete the editing process, the process proceeds to step S28. Continue the process.

  Here, a method for estimating the time Td required to delete the file B will be described. When a FAT (File Allocation Table) file system is used as the file system, the time required to delete the file is the time required to delete the directory entry that manages the FAT and file attributes corresponding to the file. It becomes the sum of. Accordingly, the time Td required to delete the file B is obtained by the following equation, for example.

Td = (number of clusters used for FAT of file B + number of clusters used for directory entry) * time required for data writing per cluster in the recording medium used Here, data per cluster The time required for writing is measured each time the recording medium to be used is changed, and the value is held.

  The moving image editing process in the present embodiment is as described above. In step S39, whether the editing result file B is deleted by comparing the time required to complete the editing process with the time required to delete the editing result file B that has been written halfway. Although the method of selecting whether or not is adopted, it is also possible to adopt a method of selecting whether or not to delete by the user.

(File repair)
Next, the file restoration process in the present embodiment will be described using the flowchart of FIG.

  This file repair process is started when the system is activated in the PLAY mode (S60). First, in step S61, it is checked whether or not the interruption information file C created at the time of editing interruption exists in the recording medium 200. When the interruption information file C does not exist in the recording medium 200, the moving image file of the recording medium 200 is examined, and if there is no corresponding thumbnail image, it is deleted (step S62).

  If the editing interruption information file C exists in step S61, the process proceeds to step S63, and the interruption information file C is read to read the file name of the editing target file A, the editing method specified by the user, and the editing position specified by the user. Information about the selected frame number, the current frame number, and the file name of the editing result file B are read out.

  Next, in step S64, the editing target file A is opened. If the result is an error, the editing process interruption information file C is deleted (step S66). If the corresponding thumbnail image does not exist, it is deleted (step S62), and the file repair process is completed.

  On the other hand, if the editing target file A is successfully opened in step S64, the process proceeds to step S65, where the presence or absence of the editing result file B is checked. If there is no corresponding thumbnail image, it is deleted (step S62), and the file repair process is completed.

  If the editing result file B exists in step S65, the editing subroutine of step S14 shown in FIG. 7 is executed. When this editing subroutine is completed, the editing process interruption information file C is deleted (step S66). If the corresponding thumbnail image does not exist, it is deleted (step S62), and the file restoration process is completed.

  Through the above processing, it is possible to delete a moving image file being edited that could not be handled in the past from the recording medium.

(Other embodiments)
As mentioned above, although embodiment of this invention was explained in full detail, this invention may be applied to the system comprised from several apparatuses, and may be applied to the apparatus which consists of one apparatus.

  In the present invention, a software program that realizes the functions of the above-described embodiments is directly or remotely supplied to a system or apparatus, and the computer of the system or apparatus reads and executes the supplied program code. Is also achieved. In that case, as long as it has the function of a program, the form does not need to be a program.

  Therefore, in order to realize the functional processing of the present invention with a computer, the program code itself installed in the computer and the storage medium storing the program also constitute the present invention. In other words, the claims of the present invention include the computer program itself for realizing the functional processing of the present invention and a storage medium storing the program.

  In this case, the program may be in any form as long as it has a program function, such as an object code, a program executed by an interpreter, or script data supplied to the OS.

  As a storage medium for supplying the program, for example, flexible disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, CD-RW, magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R).

  As another program supply method, a client computer browser is used to connect to an Internet homepage, and the computer program of the present invention itself or a compressed file including an automatic installation function is downloaded from the homepage to a storage medium such as a hard disk. Can also be supplied. It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the claims of the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. It is also possible to execute the encrypted program by using the key information and install the program on a computer.

  In addition to the functions of the above-described embodiments being realized by the computer executing the read program, the OS running on the computer based on the instruction of the program is a part of the actual processing. Alternatively, the functions of the above-described embodiment can be realized by performing all of them and performing the processing.

  Furthermore, after the program read from the storage medium is written to a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion board or The CPU or the like provided in the function expansion unit performs part or all of the actual processing, and the functions of the above-described embodiments are realized by the processing.

It is a block diagram which shows the structural example of the imaging device to which the data processor of this invention is applied. It is a rear view of the imaging device in this embodiment. It is a figure which shows an example of the moving image operation icon in embodiment. It is a figure which shows an example of the edit method selection icon in embodiment. It is a figure which shows an example of the edit position designation | designated slide bar in embodiment. It is a flowchart which shows the moving image edit process in embodiment. It is a flowchart which shows the edit subroutine in the moving image edit process of embodiment. It is a flowchart which shows the low battery detection process in embodiment. It is a flowchart which shows the file repair process in embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10: Shooting lens 12: Shutter 14: Image pick-up element 16: A / D converter 18: Timing generation circuit 20: Image processing circuit 22: Memory control circuit 24: Image display memory 26: D / A converter 28: Image display part 30: Memory 32: Image compression / decompression circuit 40: Exposure control unit 42: Distance measurement control unit 44: Zoom control unit 46: Barrier control unit 48: Flash 50: System control circuit 52: Memory 54: Display unit 56: Non-volatile Memory 60: Mode dial switch 62: Shutter switch SW1
64: Shutter switch SW2
70: operation unit 80: power supply control unit 82: connector 84: connector 86: power supply 90: interface 92: connector 94: interface 96: connector 98: recording medium attachment / detachment detection unit 100: imaging device main body 102: barrier 104: optical viewfinder 110 : Communication unit 112: Connector (or antenna)
200: Recording medium 202: Recording unit 204: Interface 206: Connector 210: Recording medium 212: Recording unit 214: Interface 216: Connector 301: Liquid crystal panel 302: SET button 303: PLAY switch 304: Up button 305: Right button 306: Down button 307: Left button 309: Shutter button 401: Movie operation icon 402: Edit mode icon 501: Edit method selection icon 502: Rear cut icon 503: Front cut icon 601: Edit position designation slide bar 602: Edit position indicator 603 : Edit position time display

Claims (11)

Control means for controlling the process of recording data on the recording medium;
Editing means for editing the first file read from the recording medium and generating the edited result as a second file;
Detecting means for detecting a power supply voltage during the process of writing the second file to the recording medium;
Have
A second file in which the power supply voltage detected by the detecting means is below a first threshold and the time until the editing by the editing means is completed is already written to the storage medium If it is longer than the time to delete the data related to, the control means stops the writing process of the second file and deletes the data related to the second file already written to the recording medium,
A second file in which the power supply voltage detected by the detecting means is below a first threshold and the time until the editing by the editing means is completed is already written to the storage medium If it is shorter than the time to delete the data related to the, the control means continues the writing process of the second file
A data editing apparatus characterized by that. 2. The data according to claim 1, wherein when the power supply voltage detected by the detection unit exceeds a first threshold value, the control unit continues the writing process of the second file. Editing device. The data editing apparatus according to claim 1, further comprising a calculating unit that calculates a time until the editing by the editing unit is completed. If the power supply voltage detected by the detecting means is further below a second threshold value that is lower than the first threshold value, information necessary for restoring the data relating to the second file is obtained. The data editing apparatus according to any one of claims 1 to 3, further comprising generating means for generating a third file including the file. The control unit stops the writing process of the second file when the power supply voltage detected by the detection unit is further lower than a second threshold value lower than the first threshold value. 5. The data editing apparatus according to claim 4, wherein after that, data relating to the second file is not deleted. 6. The data editing apparatus according to claim 4 , further comprising a repair unit that repairs the second file based on the third file. The third file includes a file name of the first file, an editing method, an editing target position, a reading position of the first file when the writing process is stopped by the control unit, and a file name of the second file. Including information necessary for deleting the data related to the second file,
The restoration means reads the file name of the first file from the third file, opens the first file, and writes the editing method, editing target position, and writing by the control means from the third file. The data editing apparatus according to claim 6, wherein the editing unit is operated based on a read position of the first file and a file name of the second file at the time when the process is stopped.   The data editing apparatus according to any one of claims 1 to 7, wherein the first and second files include moving image data. It further has an imaging means for imaging a subject and obtaining image data,
9. The data editing apparatus according to claim 1, wherein the control unit records image data obtained by the imaging unit on the recording medium. A control step for controlling a recording process of data on the recording medium;
An editing step of editing the first file read from the recording medium and generating the editing result as a second file;
A detecting step for detecting a power supply voltage during the process of writing the second file to the recording medium;
Have
A second file in which the power supply voltage detected in the detection step is lower than a first threshold and the time until the editing in the editing step is completed is already written in the storage medium If it is longer than the time to delete the data related to, the control step stops the writing process of the second file and deletes the data related to the second file already written to the recording medium,
A second file in which the power supply voltage detected in the detection step is lower than a first threshold and the time until the editing in the editing step is completed is already written in the storage medium If it is shorter than the time to delete the data relating to the second step, the control step continues the writing process of the second file
A data editing method characterized by that. The program for functioning a computer as a data editing apparatus of any one of Claims 1 thru | or 9.

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