JP3772177B2 - Electronic camera - Google Patents

Description

The present invention stores image data files and both data and audio data file (information) in the storage means, be respectively play these data from the storage unit about the possible an electronic camera.

  An IC memory card, which is an information recording medium applied to an image information recording / reproducing apparatus, which is an information handling apparatus to which DOS (DISK OPERATION SYSTEM) is applied, has a memory area configuration as shown in FIG.

  The memory card includes an attribute memory and a common memory. The common memory includes an attribute information area, a memory management area 100, and a data area 104 that is a main information area. In the attribute information area, fixed data that is not changed for each device is written. The memory management area 100 includes a boot sector 101 that is a first management information area, a FAT information area 102 that is a second management information area, and a directory entry area 103 that is also a second management information area. Has been. In addition, data such as an image is recorded in the data area 104.

  In the boot sector 101, the logical sector length, the number of tracks, the number of sectors per track, etc. of the memory card are recorded. FIG. 9 shows the contents of the format of the boot sector 101. In the FAT information area 102, memory area information of the data area 104 is recorded in a chain format, and how data is recorded in the data area 104 in the directory entry area 103, or the data file Attribute information and the like are written.

  As an initialization process to make an unused memory card or a used memory card on which data has been written into a data recordable state, one is to erase all the data in the memory card and perform a memory check. In addition, there is an initialization format process in which a boot sector and the like are written, and another one is an all-frame erase process in which only the directory entry and the FAT are erased. The initialization formatting process requires a long processing time, for example, about one minute, since the data in all memory areas is initialized. However, the all-frame erasing process requires only rewriting of management information. The initialization is completed in a relatively short time, for example, about 15 seconds.

  In the initialization process performed by the information recording / reproducing apparatus or the like, the method shown in the flowchart of FIG. In this process, first, the boot sector is read (step S101), and it is checked whether the boot sector information is compatible with the device (step S102). If the boot sector information is incompatible, the initialization format process is executed (step S105). If the boot sector information is appropriate, the directory entry is erased and the FAT is initialized (steps S103 and S104), and the initialization is terminated. In this way, the initialization for the memory card boot sector information suitable for the apparatus can eliminate the long wait time due to formatting.

Incidentally, in the electronic camera having an information recording and reproducing function, and also the image data file audio data file in addition to the image data file may be configured to be recorded independently. Of course, these recorded image data files and audio data files are configured to be played back. However, when the operator plays back the recorded data one after another, an audio data file that is data other than images is subject to playback. If it suddenly shifts to a state in which no image is displayed, the device may be worried that it may not operate normally, or it may receive a strange impression. There is.

On the other hand, once to erase the recorded image data files and audio data files, it is desired to erase these data to each independently if desired. However, no technology has been proposed in the prior art that sufficiently eliminates the fears described above and that can sufficiently meet the needs.

The present invention is intended to solve the technical problem that cannot be sufficiently dealt with by the conventional technology as described above, and display of reproduction data can be appropriately performed when reproducing an image data file and an audio data file. also, it is intended to provide an electronic camera which can be erased each independently in accordance with image data files and audio data files required.

In order to solve the above problems, the first electronic camera according to the present invention is capable of recording an image data file and an audio data file, and the image data file and the audio data file can be reproduced independently. and an electronic camera, a mode setting means for setting by switching the recording mode and the reproducing mode, reproduction mode, the operating means for sequentially sending, or return the data file to be reproduced, which is the recording A display means for reproducing and displaying the image data file, and in the reproduction mode, when the data file is sent or returned by the operation means and the image data file is reproduced, the image data file is displayed on the display means. When the audio data file is reproduced and displayed, the audio data file is displayed on the display means. And having a control means for displaying the number information indicating a.
According to the second electronic camera of the present invention, in the first electronic camera, the control means reproduces and displays the image data file on the display means or displays the number information of the audio data file on the display means. It further has an operation means for deleting a desired data file while performing the operation.

A third electronic camera according to the present invention is an electronic camera in which an image data file and an audio data file can be recorded, and the image data file and the audio data file can be reproduced independently. A mode setting means for switching between the recording mode and the reproduction mode, a display means for reproducing and displaying the recorded image data file, and when reproducing the image data file in the reproduction mode. When the image data is reproduced and displayed on the display means and the audio data file is reproduced, a first reproduction mode for displaying number information corresponding to the audio data file on the display means; and The image data file can be reproduced and displayed on the display means, and the second reproduction mode for skipping the audio data file can be executed. Characterized by a control unit.
Furthermore, a fourth electronic camera according to the present invention is an electronic camera in which an image data file and an audio data file can be recorded, and the image data file and the audio data file can be reproduced independently. A mode setting means for switching between the recording mode and the reproduction mode, a display means for reproducing and displaying the recorded image data file, and sequentially sending the data file to be reproduced in the reproduction mode, or In the playback mode , the operation means for returning the data file is sent or returned by the operation means, and when the image data file is reproduced, the image data is reproduced and displayed on the display means. When playing back an audio data file, the display means is provided with number information indicating the audio data file. The control means can further execute a continuous reproduction mode for continuously reproducing the recorded data, and the recorded image data file is executed during the continuous reproduction mode. Is displayed and the recorded audio data file is skipped.

According to the present invention, it is possible to appropriately display the reproduction data when reproducing the image data file and the audio data file, and the user may be worried that the device is not operating normally. Alternatively, an electronic camera can be realized that does not give a strange impression.

Further, each independently in accordance with image data files and audio data files required can be erased arbitrary, improvement in operability and convenience with respect to erase data is revealed real.
In addition, when there is a need to search only the image data file, it is possible to perform reproduction display by skipping data files other than the image data file such as an audio data file, and it is possible to search efficiently .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 3 are a block diagram and an external view of an electronic still camera of an information handling apparatus showing an embodiment of the present invention.

  The electronic still camera of the present embodiment applies an IC memory card as an information recording medium, and the configuration thereof will be described along the signal flow with reference to the block configuration diagram of FIG.

  In the recording mode, an optical image of a subject incident through the optical system 1 is converted into an analog electrical signal by the imaging system 2 configured by a CCD or the like disposed on the imaging surface. The imaging signal output from the imaging system 2 is maintained at a constant DC level by the clamp circuit 3 and then converted to a digital signal by an analog / digital conversion circuit (hereinafter abbreviated as A / D conversion circuit) 4. Is written in the frame memory 6 and temporarily stored.

  When the writing to the frame memory 6 is completed, the data is read from the frame memory 6 under the control of the memory controller 5 and is compressed in the discrete cosine transform circuit (hereinafter referred to as DCT / IDCT) 7. Necessary data conversion is performed and output to the coder / decoder 8. The coder unit of the coder / decoder 8 compresses the video data while referring to the auxiliary memory 9 in which various data and tables necessary for performing the compression process are written. The compressed data is written to the IC memory card 10 as an information recording medium that is detachably attached to the electronic still camera through the data bus 20.

  In the recording mode, the gain of the output signal at the time of adjusting the white balance of the imaging system 2 is controlled via the system controller 19, and the aperture of the optical system 1 is also controlled via the system controller 19. . The system controller 19 includes management information determination means, management information initialization means, management information restoration means, and the like, which will be described later.

  Next, the description of the electronic still camera will be continued along the flow of signals when reproducing the video data recorded as described above.

  The data read from the IC memory card 10 is input to the coder / decoder 8 through the data bus 20, and the decompression process is performed to restore the compressed data in the decoder unit of the coder / decoder 8. Is done. The decompressed data is subjected to inverse DCT processing in the DCT / IDCT circuit 7 and written into the frame memory 6. When all the data expansion processing is completed, data is read from the frame memory 6 under the control of the memory controller 5 and the output is converted into a video signal compliant with, for example, NTSC by the digital process 11. Then, after being converted into an analog signal by a D / A (digital / analog) conversion circuit 12 and subjected to, for example, 75Ω impedance matching by a buffer 13, an electronic viewfinder (hereinafter abbreviated as EVF) 14 is informed to the photographer. The image is reproduced so that it can be observed. At the same time, the video signal is output to the video output terminal 15 to the outside.

  The electronic still camera performs various operations such as a character generator 16 that generates character information such as date and time and displays it on the screen, an LCD display unit 17 that displays various operation modes, and the like. And an operation unit 18. Each component described above is controlled by the system controller 19. In addition, the camera can perform various manual operations. The setting value at that time is stored in the setting memory 21 and the same operation is reproduced by recalling the setting value during the subsequent operation. be able to.

  When recording on a recording medium such as the IC memory card 10, for example, it is recorded after being converted into a format recognizable on a personal computer, specifically, a DOS format described later.

  Next, the arrangement of the operation unit 18 and the like will be described in detail.

  2 and 3 show the arrangement of the operation unit 18 and the like in the external view of the electronic still camera of this embodiment. 2 is a plan view of the camera, and FIG. 3 is a view as seen from an arrow A in FIG. 2 as viewed from the eyepiece of the camera.

  As shown in FIG. 2, the LCD display unit 48 described above is disposed at the center of the upper surface of the camera body so that each operation described later is displayed. On one side of the LCD display portion 48, zoom switches for tele / wide mode selection (hereinafter referred to as ZOOM switches) T31 and W32 are arranged.

  Further, an up switch (hereinafter referred to as an UP switch) 33 and a down switch (hereinafter referred to as a DOWN switch) 34 are disposed below the ZOOM switches T31 and W32. These switches 33 and 34 are used for mode adjustment, for example, white balance fine adjustment, shutter speed change, exposure correction value change, power focus focusing, etc., when the camera is in the recording mode. In the playback mode, it is used for frame advance and frame reverse.

  Next, in FIG. 2, functions of the operation switch group constituting the operation unit 18 disposed below the LCD display unit 48 will be described.

  In the drawing, a white balance switch (hereinafter referred to as a WB switch) 35 is used to change the white balance mode in the recording mode.

  In the following, the view erase switch (hereinafter referred to as VIEW ERASE switch or ERASE switch) 36 is used to play back the image recorded immediately before it is pressed in the recording mode, and is used as a frame erase switch in the playback mode. Is done.

  The +/− switch 37 is used to change the exposure mode in the recording mode. A focus switch (hereinafter referred to as FOCUS switch) 38 is used to change the focus mode of autofocus or power focus in the recording mode.

  A strobe switch (hereinafter referred to as ST switch) 39 is used to change the strobe mode in the recording mode. A picture switch (hereinafter referred to as a PICTURE switch) 40 is used to change the hue, color density, etc. in the recording mode. In the playback mode, it is used for setting the image data of the memory card. A drive switch (hereinafter referred to as a DRIVE switch) 41 is used to change the recording speed mode in the recording mode, and is used to change the reproduction speed in the reproduction mode.

  A mode switch (hereinafter referred to as a MODE switch) 42 is used to change between the compression mode and the non-compression mode in the recording mode. In the reproduction mode, it is used for instructing an on-screen mode in which a character display signal is superimposed on a video signal output from an external terminal. A time switch (hereinafter referred to as a TIME switch) 43 is used for setting time and turning on / off a buzzer. A power switch (hereinafter referred to as a POWER switch) 44 is used for the power on / off operation of the camera of this embodiment. The trigger switch 45 is used to instruct a photographing operation.

  Further below the operation switch groups, on the camera body edge, a CAMERA / PLAY switch 46 used for switching between a recording mode and a reproduction mode, or between a transmission mode and a reception mode during image transmission, An AUTO / MANUAL switch 47 is provided for switching between the full auto shooting mode and the manual shooting mode or setting the camera to the transmission mode in the recording mode. Further, an eyepiece 49 for the EVF 14 of the camera is disposed on the front side surface of the camera body.

  Next, WB (white balance) adjustment in the camera of this embodiment will be described.

  In the camera of the present embodiment, as the WB fine adjustment process, the WB correction point can be set on one axis, and the WB manual fine adjustment process can be performed more easily.

  That is, in this manual WB fine adjustment method, the value of each component of (RY) and (BY) is set to WB along the I axis which is one inclined axis of the color vector plane of FIG. Set as correction center. The I axis is a line indicating a black body locus along the change in the color temperature of the black body. If the WB correction center is moved along the I axis, an appropriate WB adjustment can be performed. it can.

  In this embodiment, when performing WB fine adjustment, the inclination data of the I axis is stored in a memory, and first, as a correction adjustment point, when the point P0 when clear in FIG. 14 or when it is cloudy The point P1 or the point P2 at sunset is selected. Further, at each point, the UP / DOWN switches 33 and 34 as the WB adjusting means (the WB adjusting means includes a part of the system controller and the memory) are operated to follow the inclination of the I axis. The WB correction center is moved to finely adjust the WB.

  As described above, the WB fine adjustment in the camera of the present embodiment can be performed with a simple operation, and by performing this adjustment, it is possible to perform photographing with a delicate color desired by the user. In the conventional initialization process shown in FIG. 10, if the memory card is pulled out during the erasing operation or the power of the apparatus is turned off, the boot sector is written in a normal state, and the directory entry is also stored. It is possible that the memory card is removed in a state where the data has been erased but the FAT has not been erased.

  Normally, in a memory card, the free space is determined based on the size of a range where each data of FAT is “0”. Therefore, if the FAT has not been erased as described above, it is determined that the capacity is small.

  If the chain of FAT data is traced from the currently searched file, it is possible to distinguish between normal FAT and abnormal FAT, so that correction can be made. It is inappropriate to execute the check process up to that time with a playback device or the like each time a memory card is inserted. Such a check process is a process that is executed by a single check command even in a personal computer or the like, and is not performed during a normal operation.

  Therefore, in this embodiment, the information recording medium can be promptly initialized, and even if the information recording medium is not normally initialized, the recording medium is handled thereafter. In addition, normal initialization can be performed without causing any inconvenience.

  The initialization process of the memory card 10 in the camera of the present embodiment will be described with reference to the subroutine flowchart of FIG.

  The ERASE switch 36 and the UP switch 33 are pressed to set the camera to the initialization mode. When the trigger switch 45 is pressed there, the initialization process of the memory card 10 is started.

  First, the boot sector in the first management information area is read (step S1), and it is checked by the management information discriminating means whether the boot sector information is compatible with the device (step S2). If the boot sector information is inappropriate, the management area below the boot sector, that is, the first management area and FAT of the boot sector, the second management area of the directory entry, and the main information storage area A formatting process for initializing all data in a certain data area is executed (step S7).

  If the boot sector information is suitable for the device, the boot sector information is temporarily changed by the management information initialization means so that the boot sector information is not appropriate (step S3), and the directory entry is deleted. And FAT initialization are executed (steps S4 and S5). Thereafter, the management information restoring means restores the boot sector to a suitable boot sector (step S6), and the initialization ends.

  As described above, in the case of the initialization process of the conventional memory card shown in FIG. 10, if the card is pulled out during erasure, the boot sector is normal, but the directory entry and the FAT are in an inconsistent state. Become. When such a card is inserted into the camera, it is used in a state where the recordable data area is extremely narrowed, or the recording becomes impossible.

  However, in the camera of this embodiment, by performing the above initialization process, if the memory card 10 pulled out during the process is not data suitable for the device to which the boot sector corresponds, it is inserted into the camera. Even if it is in a state where it cannot be used, there is no problem in recording. Further, when the card is initialized again, the boot sector is not appropriate, so that the initialization according to the format of step S7 in FIG. 4 is always performed.

  In the camera of the present embodiment, the format in step S7 can be forcibly executed separately from the initialization by the automatic discrimination. In this process, the forced initialization mode is set by pressing the ERASE switch 36 and the DOWN switch 34. When the trigger switch 45 is pressed, the management area and the data area of the memory card 10 are forcibly set. Both formatting processes are started.

  In the initialization process of the memory card 10, when it is found that the data recorded in the middle of the initialization process needs to be stored, the data is reproduced even if the initialization operation is interrupted conventionally. I couldn't. Even in such a case, it is possible to propose a modification example in which reproduction is possible if the directory entry and the FAT corresponding to the corresponding data are not yet deleted.

  In the initialization process in this modification, a check flag is written in an area not directly related to data processing, for example, a manufacturer name and a version number area in the boot sector shown in FIG. In that case, other boot sectors are not changed. If the initialization is interrupted for the reasons described above, the data can be reproduced by pulling out the memory card and inserting it into a personal computer. That is, the above flag is checked on the personal computer to set the reproduction mode of the data being erased, and if it is within the range of data that has not yet been erased, it can be restored.

  As described above, in this embodiment, when the information recording medium is initialized to a state in which the main information is not recorded or is not recorded, the management information in the first management information area is determined, and the first information When the management information in the management information area is suitable for the corresponding information handling device, the management information that does not fit in the first management information area is temporarily recorded, the second management information area is initialized, and then Since the original management information conforming to the first management information area is written, if the normal initialization process of the information recording medium is not executed, the information recording medium is disabled and no inconvenience occurs. At the same time, it is possible to perform normal initialization processing of the recording medium.

  Next, data erasure processing in the camera of this embodiment will be described.

  As data files recorded in the data area of a conventional image recording / playback apparatus such as a camera, three types of files are created as shown in the formats of FIGS. The data file in the format shown in FIG. 11 is an image data file of one frame, and is composed of header information such as recording date / time and field / frame and image data which is compressed image data. FIG. 12 shows the format of a single frame audio data file that is a file generated in a camera capable of audio recording, and is composed of header information and audio data that is compressed audio data. FIG. 13 shows the format of a relation data file indicating the relationship between the combination of an image file and an audio file corresponding to one directory entry, in which header information for recording standard information and related information between files are recorded. And relation information.

  In the data erasing process in the present embodiment, it is possible to erase one frame of the image file and one frame of the audio file. Furthermore, together with the image file based on the relation file data, Corresponding audio files can be deleted at once.

  Of course, it is possible to delete all frames of an image file and all frames of an audio file.

  In the camera of the present embodiment, as a key operation when erasing one frame at the time of playback, the changeover switch 46 is switched to the “PLAY” side and the release switch 36 is pressed while pressing the ERASE switch 36 which is also used as the VIEW switch. Erase is executed by operating the switch 45.

  On the other hand, there is a so-called REC review playback function that plays back the previous recorded image data after recording. This playback function is performed by setting the ERASE switch 36 that is also used as a view (VIEW) switch while the changeover switch 46 remains on the CAMERA side. The REC review playback function works while pressing. Therefore, when erasing the image data for REC review reproduction, the release switch 45 may be pressed as it is.

  As described above, in the camera of this embodiment, since the VIEW switch and the ERASE switch are used as described above, the one-frame erasing operation during the normal reproduction and the erasing operation of the REC review reproduction data are performed. It can be executed by the same operation and does not make the user feel uncomfortable.

  In the camera of the present embodiment, as described above, files such as audio data, relation data, and personal computer data are recorded in addition to the image data file as being recorded in the data area. During normal playback, the file data other than the image data file and the unrecorded data portion are played back as a black mute screen. Therefore, in this embodiment, in order to notify that data other than the image data file is being reproduced, on-screen display and the frame No. corresponding to the LCD display unit 17 are displayed. Is displayed blinking.

  It is also possible to vary the blinking speed depending on the data such as audio data, relation data, and unrecorded part. Alternatively, the color of the mute screen can be changed depending on the difference in the data. For example, the unrecorded portion is black mute, the audio file is blue mute, the personal computer file is red mute, etc., so that the user can identify at a glance.

  Further, at the time of reproduction, it is also possible to skip and reproduce other than image files such as unrecorded files and audio files. According to such reproduction, the user does not need to see a mute screen of meaningless unrecorded frames, and can search efficiently.

  In other words, the playback processing at a predetermined interval includes continuous playback for searching image data at high speed and interval playback for sending playback images at fixed time intervals. This high-speed search processing is performed during high-speed search and demonstration. It is a function used, and it is not necessary to reproduce other than image data. Therefore, when these functions are working, the above-mentioned audio file, unrecorded file, etc. are skipped and only the image file is reproduced, so that the usability can be improved.

  Next, various recording processes in the camera of this embodiment will be described.

  As described above, header information is added to the image data file of one frame in order to record the data format of the image data. In the camera of the present embodiment, camera shooting information such as shutter speed, exposure information, WB (white balance) information, color adjustment information, focus step number information, flash exposure information, and the like are recorded in this header. Therefore, even when shooting with full auto, it is possible to know the various types of shooting information by referring to the header information after shooting.

  Furthermore, the shooting conditions can be set based on the shooting information recorded in the header, and shooting is performed. The shooting process will be described with reference to the flowcharts of FIGS.

  In the flowchart of FIG. 5, in step S11, the changeover switch 46 is switched to the “PLAY” side to set the reproduction mode. Then, the UP / DOWN switches 33 and 34 are operated to display the playback frame of the image for which the shooting conditions are to be referred to, and the PICTURE switch 40 is used to display the frame NO. Is specified. In step S12, the subroutine “Set shooting mode” is called and executed.

  In the subroutine “shooting mode setting”, shooting information such as shutter speed and exposure information is read from the header information of the image file of the corresponding frame as shown in FIG. 6, and shooting conditions are set based on the shooting information. (Steps S21 and S22).

  Thereafter, in step S13 in FIG. 5, the changeover switch 46 is switched to the “CAMERA” side, and the camera is set to the photographing mode. In step S14, shooting is performed under the already set shooting conditions.

  In this way, shooting conditions on the previous shooting screen can be reproduced without complicated setting operations, and if there is a memory card already shot by another photographer, the shooting conditions on that shooting screen can be applied as they are. Is also possible.

  Next, interval shooting by the camera of this embodiment will be described.

  Interval shooting by a conventional electronic still camera system is a known shooting method. In this interval shooting, the power supply is kept on during the shooting period. In a system in which the power source is a battery, it is difficult to perform interval shooting for a long time because of the large amount of power consumption.

  Since it is not always necessary to keep the on state during the interval shooting, the camera of this embodiment is set to a standby state close to power-off during the shooting waiting time so as to suppress power consumption. In preparation for shooting, the power is turned on several tens of seconds before shooting. Processing such as strobe charging and auto WB is performed during the shooting preparation time. Also, during interval shooting, zooming is prohibited to prevent shifting of focusing due to a change in the shooting angle of view.

  In addition, the interval time has conventionally been determined to be constant, but in the present embodiment, a certain interval time is held as a preset value, and the value is finely adjusted by the UP / DOWN switches 33, 34, etc. It can be changed and rewritten. The set value is stored in the setting memory 21 via the system controller 19. When the same interval shooting is performed, the value stored in the setting memory 21 can be read and the interval time can be easily set without troublesome operations. Even in the power-off state, this set value data is retained.

  FIG. 7 is a flowchart of the interval shooting subroutine.

  In the main photographing process, the photographing start instruction is confirmed in step S31, and the first frame is photographed in step S32. Immediately after that, the camera shifts to a standby state, and at the same time, zoom driving is prohibited (step S33). In step S34, it waits for a predetermined time that is tens of seconds less than the interval set time, and after that time, the power is turned on in step S35. Then, strobe charge and auto WB processing are performed in step S36, the process proceeds to step S37, waits for the interval time to elapse, and shooting is started in step S38. In step S39, the end of shooting for a predetermined number of frames or the passage of shooting time is checked, and the process returns to step S33 until the shooting is completed.

  The interval shooting process can be applied to interval reproduction as well. That is, the changeover switch 46 is switched to the reproduction mode. The interval playback is designated by the DRIVE switch 41. Further, the zoom switches 31 and 32 are operated to set the interval time in seconds. This set time is stored in the setting memory 21, and the set value is retained even in the power-off state. Reference is made when interval playback is executed again.

  In the interval playback described above, the interval time itself, which is usually a few seconds, is variable. However, in order to temporarily execute high-speed search frame advance, the interval time can be set with one touch without changing the set interval time. If the camera can be shortened, the camera can be more convenient. The one-touch operation can be performed by, for example, operating the UP / DOWN switches 33 and 34, and pressing the switches 33 and 34 can temporarily perform the frame advance speed processing.

It is a block block diagram of the electronic still camera which shows 1st Example of this invention. It is a top view which shows the external appearance of the camera of the said FIG. It is A arrow view of the said FIG. 3 is a flowchart of a “memory card initialization” process in the camera of FIG. It is a flowchart of "the imaging | photography process based on stored data" in the camera of the said FIG. FIG. 6 is a flowchart of a subroutine “shooting data set” process called in the “shooting process based on stored data” in FIG. 5. It is a flowchart of the "interval imaging | photography" process in the camera of the said FIG. It is a figure which shows the structure of the memory area of the memory card applied to the conventional information handling apparatus. It is a figure which shows the format of the boot sector of the memory card of the said FIG. It is a flowchart of the "initialization of a memory card" process in the conventional information handling apparatus. It is a figure which shows the structure of image data among the data areas of the memory card applied to the conventional information handling apparatus. It is a figure which shows the structure of audio | voice data among the data areas of the memory card applied to the conventional information handling apparatus. It is a figure which shows the structure of relation data among the data areas of the memory card applied to the conventional information handling apparatus. It is a figure which shows the I-axis characteristic on the color vector plane applied to the process of WB adjustment of the conventional video camera.

Explanation of symbols

19 System controller (management information discrimination means, management information initialization means, management information restoration means)
101 Boot sector (first management information area)
102 FAT area (second management information area)
103 Directory area (second management information area)
104 Data area (main information area)
Step S2 Management information discrimination means Steps S3, 4, 5 Management information initialization means Step S6 Management information restoration means
Attorney Susumu Ito

Claims (4)

Image data file and the audio data files are made to be recorded, wherein the image data files and audio data files an electronic camera was made as may be reproduced independently,
Mode setting means for switching between the recording mode and the playback mode ;
Operation means for sequentially sending or returning data files to be played back in the playback mode ;
Display means for reproducing and displaying the recorded image data file ;
In the playback mode, when the data file is sent or returned by the operation means and the image data file is reproduced, the image data is reproduced and displayed on the display means, and the audio data file is reproduced. Includes a control means for displaying number information indicating the audio data file on the display means ,
An electronic camera comprising: The control means further comprises operation means for deleting a desired data file while displaying the display of the image data file on the display means or displaying the number information of the audio data file on the display means. The electronic camera according to claim 1 . An image data file and an audio data file can be recorded, and the image data file and the audio data file can be played independently ,
Mode setting means for switching between the recording mode and the playback mode ;
Display means for reproducing and displaying the recorded image data file ;
In the playback mode, when the image data file is played back, the image data is played back and displayed on the display means, and when the audio data file is played back, the display means corresponds to the audio data file. Control means capable of executing a first reproduction mode for displaying number information to be performed, a second reproduction mode for reproducing and displaying the image data file on the display means, and skipping the audio data file ;
An electronic camera comprising: An image data file and an audio data file can be recorded, and the image data file and the audio data file can be played independently ,
Mode setting means for switching between the recording mode and the playback mode ;
Display means for reproducing and displaying the recorded image data file ;
Operation means for sequentially sending or returning data files to be played back in the playback mode ;
In the playback mode, when the data file is sent or returned by the operation means and the image data file is reproduced, the image data is reproduced and displayed on the display means, and the audio data file is reproduced. Includes a control means for displaying number information indicating the audio data file on the display means ,
The control means is capable of further executing a continuous playback mode for continuously playing back recorded data, and executing playback display of the recorded image data file during execution of the continuous playback mode. An electronic camera characterized in that the recorded audio data file is skipped .

Images