JP4776967B2 - RECORDING / REPRODUCING DEVICE, ITS CONTROL METHOD, PROGRAM, AND STORAGE MEDIUM - Google Patents

Description

  The present invention relates to a recording / reproducing technique for recording / reproducing image data, audio data, and the like.

  Conventionally, recording / reproducing devices such as digital cameras for recording and reproducing still images and moving images using a memory card having a solid-state memory element as a recording medium are already on the market, and digital cameras equipped with an electronic viewfinder such as a color liquid crystal panel are also sold. Has been.

In addition to image data, a function of recording and reproducing data in a format different from that of an image such as sound as independent data in association with the image data under the same directory structure as the image data or without association with the image data There was something with.
JP 2002-223401 A

  In such a conventional recording / reproducing apparatus such as a digital camera, even if it is desired to search only one of image data and audio data, the audio data is arranged under the same directory structure as the image data. There is a problem that search time is wasted because it is necessary to determine and discard data in the other format that is not to be searched during analysis (for example, audio data when the search target is image data). there were.

  The same problem occurs when it is desired to perform some processing only on either image data or audio data.

  Also, in a recording / playback device such as a digital camera, although the main application is recording / playback of image data, overhead is caused by mixing unnecessary data such as audio data when searching for image data, as described above. There was a problem that the start of was delayed.

  Therefore, the present invention has been made in view of the above-described problems, and an object of the present invention is to improve convenience when processing such as data search is performed in a recording / playback device such as a digital camera.

In order to solve the above-described problems and achieve the object, a recording / reproducing apparatus according to the present invention is a recording / reproducing apparatus for recording an image file and an audio file, and includes an image recording mode, an image reproduction mode, and an audio mode. Mode selection means for selecting one of the above, a determination means for determining which mode is selected by the mode selection means, and a file system of the recording medium, immediately below the root directory at the top of the hierarchical structure A file management means for managing a DCIM directory and a directory for recording an audio file, recording an image file in the DCIM directory, and managing not to handle the image file recorded in the directory for recording an audio file And after the recording / reproducing apparatus is started up and selected by the discriminating means Before determining the recorded mode, the audio file recording directory is not analyzed, the image file directory recorded in the DCIM directory is analyzed, and the image file recorded in the DCIM directory is analyzed. After the analysis is completed, a mode is determined by the determination unit, and when the selected mode is a voice mode, a control unit that controls to analyze the directory for recording the voice file; It is characterized by having .

The recording / reproducing apparatus control method according to the present invention is a recording / reproducing apparatus for recording an image file and an audio file, and mode selection means for selecting one of an image recording mode, an image reproduction mode, and an audio mode. Determination means for determining which mode is selected by the mode selection means, management means for managing image files and audio files recorded on the recording medium, and control means for controlling the management means And the management means manages a DCIM directory and a directory for recording audio files immediately below a root directory at the top of the hierarchical structure in the file system of the recording medium, and the DCIM directory contains image files. Recorded in the audio file recording directory Airu is a method for controlling the recording and reproducing apparatus which manages to not handle, said control means, said rear start recording and reproducing apparatus, and before determining the mode of said discriminating means is selected, the audio file Without analyzing the recording directory, the directory of the image file recorded in the DCIM directory is analyzed, and after the analysis of the image file recorded in the DCIM directory is completed, the determination means sets the mode. discriminated, when a mode is selected were the voice mode, characterized by having a more engineering for controlling the management unit to perform the analysis of the directory for the audio file recording.

The program according to the present invention causes a computer, characterized in that to execute as engineering of the control method described above.

A storage medium according to the present invention stores the above program.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to improve the convenience at the time of performing processes, such as a data search, in recording / reproducing apparatuses, such as a digital camera.

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an embodiment in which an image and sound recording / reproducing apparatus of the present invention is applied to a digital camera.

  In FIG. 1, reference numeral 100 denotes a digital camera.

  Reference numeral 10 denotes a photographing lens, 12 denotes a shutter having a diaphragm function, 14 denotes an image sensor that converts an optical image into an electrical signal, and 16 denotes an A / D converter that converts an analog output signal of the image sensor 14 into a digital signal.

  Reference numeral 18 denotes a timing generation circuit that supplies a clock signal and a control signal to the image sensor 14, the A / D converter 16, the D / A converter 26, the A / D converter 222, and the D / A converter 224, and controls the memory. It is controlled by the 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 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.

  An audio input unit 220 includes a microphone and an amplifying device. An analog audio signal output from the audio input unit 220 is digitized by an A / D converter 222, and the memory 30 is connected via the memory control circuit 22. Is written to.

  In the image reproduction, the compressed image data read from the recording medium 200 or 210 to the memory 30 is decompressed by the compression / decompression circuit 32 and developed in the image display memory 24.

  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 superimpose various information displays by OSD (On Screen Display). The display contents include single shot / continuous shooting display, self-timer display, compression rate display, recording pixel number display, Number of recorded images, number of displayed images, number of remaining shots displayed, search key icon display, shutter speed display, aperture value display, exposure compensation display, flash display, red-eye reduction display, macro shooting display, buzzer setting display, clock battery There are a remaining amount display, a remaining battery amount display, an error display, an information display by a multi-digit number, an attachment / detachment state display of the recording media 200 and 210, a communication I / F operation display, a date / time display, and the like.

  Among these various information displays, conditions and settings at the time of shooting can be obtained by storing each information in the image header at the time of shooting and analyzing and extracting the image header at the time of playback. Can be referred to.

  In the audio reproduction, the audio data read from the recording medium 200 or 210 to the memory 30 is converted into an analog signal by the D / A converter 224 and reproduced by the audio output unit 226 including an amplification amplifier and a speaker. Is done.

  Reference numeral 30 denotes a memory for storing captured still images, moving images, sounds, and the like, and has a storage capacity sufficient to store a predetermined number of still images and moving images and sounds for a predetermined time.

  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, reference numeral 44 denotes a zoom control unit that controls zooming of the photographing lens 10, and reference numeral 46 denotes a barrier control unit that controls the operation of the protection unit 102 serving as a barrier.

  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.

  50 is a system control circuit for controlling the entire digital camera 100, 52 is a memory for storing constants, variables, programs and the like for the operation of the system control circuit 50, and a program for performing the operation shown in FIG. I remember it.

  Reference numeral 54 denotes a display unit such as a speaker that displays an operation state, a message, or the like using sound or the like in accordance with execution of a program in the system control circuit 50, and is configured by a combination of LEDs, sounding elements, and the like.

  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 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 units 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 eye-gaze detection, a voice recognition device, or the like. Composed.

  Here, a specific description of these operation units will be given.

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

  Reference numeral 62 denotes a shutter switch SW1, which is turned ON during the operation of a shutter button (not shown), and performs AF (auto focus) processing, AE (auto exposure) processing, AWB (auto white balance) processing, EF (flash pre-flash) processing, and the like. Instruct to start operation.

  Reference numeral 64 denotes a shutter switch SW2, which is turned on when an operation of a shutter button (not shown) is completed, and exposure processing and image processing for writing a signal read from the image sensor 14 to the memory 30 via the A / D converter 16 and the memory control circuit 22. Development processing using arithmetic operations in the circuit 20 and the memory control circuit 22, reading of image data from the memory 30, compression in the compression / decompression circuit 32, and start of a series of processing operations such as recording processing for writing to the recording medium 200 or 210 Instruct.

  A voice recording start / stop switch SW3 is a recording process for writing a signal read from the voice input unit 220 to the memory 30 via the A / D converter 222 and the memory control circuit 22, and reads and records the voice data from the memory 30. An instruction to start or stop a series of processes called a recording process to be written on the medium 200 or 210 is given.

  Reference numeral 70 denotes an operation unit composed of various buttons, a touch panel, and the like. A menu button, a set button, a macro button, a flash setting button, a single shooting / continuous shooting / self-timer switching button, a menu moving + (plus) button, a menu moving − (minus). ) Button, playback image feed + (plus) button, playback image feed-(minus) button, and the like.

  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. 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.

  Reference numeral 82 denotes a connector, 84 denotes a connector, and 86 denotes a power source unit including a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li ion battery, or an AC adapter.

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

  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.

  A protection unit 102 is a barrier that prevents the imaging unit from being soiled or damaged by covering the imaging unit including the lens 10 of the digital camera 100.

  Reference numeral 104 denotes an optical viewfinder, which can take an image using only the optical viewfinder without using the electronic viewfinder function of the image display unit 28.

  A communication unit 110 has various communication functions such as RS232C, USB, IEEE1394, P1284, SCSI, modem, LAN, and wireless communication.

  Reference numeral 112 denotes a connector for connecting the digital camera 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 composed of a semiconductor memory, a magnetic disk, or the like, an interface 204 with the digital camera 100, and a connector 206 for connecting with the digital camera 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, and the like, an interface 214 with the digital camera 100, and a connector 216 for connecting with the digital camera 100.

  Next, the operation of the digital camera of this embodiment will be described with reference to FIGS.

  FIG. 2 is a diagram showing a configuration example of directories and files in the recording media 200 and 210.

  The directory structure below the DCIM directory arranged immediately under the ROOT directory (root directory) is based on the DCF standard generally used in digital cameras.

  In the DCF standard, an image file and an attached file attached to the image file are handled in a directory structure below DCIM. Therefore, in the example of FIG. 2, IMG — 0001. JPG and IMG — 0002. assigned to file number 0002. JPG and its attached audio file SND_0002. It shows that WAV can be recognized and played back. Here, the audio file SDR_0006. The WAV cannot be recognized because there is no paired image file.

  The directory structure below the SNDR directory arranged immediately below the ROOT directory is the other directory having the same directory structure as the directory structure below DCIM in accordance with the DCF standard. Here, the directory structure below SNDR is handled as a single voice only, and only files with extensions recognized as voice files are recognized.

  Here, a directory structure dedicated to audio files is used, but a directory structure limited to a specific format such as dedicated to moving image files or dedicated to text files may be used, or a plurality of directory structures may exist.

  Therefore, when an operation is performed only on a specific format file such as only an image file or an audio file, the operation may be performed only on a directory structure that handles a specific format.

  FIG. 3 is a flowchart of search processing in the digital camera of this embodiment.

  When the digital camera 100 is activated, the following processing shown in FIG. 3 is executed.

  If the digital camera 100 is activated, first, analysis of the image directory in the recording medium 200 or 210 and holding of the analysis result are performed (step S301).

  In the digital camera of this embodiment, an image is recorded in accordance with the DCF standard. In this case, information such as the presence / absence of an image file and a file attribute existing in a directory structure below DCIM is stored in the recording medium 200 or 210. It is acquired from the directory entry of the file system and stored as reference information in the memory 52 shown in FIG.

  Regarding the presence or absence of an image file, in accordance with the DCF standard, a DCF object that exists immediately under the DCF root directory “DCIM” “XXXIMYY” (xxx is a number from 100 to 999, yyyyy is an arbitrary character string) Determined by the presence or absence of The DCF object is jjjjkkkk. It has a file name rule of llll (jjjj is an arbitrary character string, kkkk is a number from 0001 to 9999, and lll is an extension). Files with the same kkkk (same file number) in the DCF file are recognized as the same object.

  For example, immediately under ROOT / DCIM / 100CANOC in FIG. JPG is an image-only DCF object, IMG — 0002. JPG and SND_0002. The WAV is detected as an image and a DCF object with sound attached to the image. Audio file SDR_0006. Since WAV does not have an image file with the same file number, it is excluded from the DCF object.

  Next, when there is an information acquisition request regarding an image file due to an instruction to display the next image displayed on the display unit 54 by the operation of the operation unit 70 of FIG. 1 (step S302), the information is held in step S301. Information about the image file is acquired from the image directory analysis result and returned (step S303).

  For example, in the playback mode, information on the path indicating the location on the medium relating to the image file having the maximum file number in the DCF directory having the maximum directory number in the DCF rule that is displayed first after activation, This is a reply to the acquisition of path information accompanying the display image selection by the user's button operation or the like.

  In the recording mode, a reply to the next inquiry about whether or not to shoot is made, that is, whether or not a file with a new file name that conforms to the naming rule of the DCF standard can be generated. For example, in the case of a recording / reproducing apparatus that always records directory numbers and file numbers in ascending order, the maximum directory number in the recording medium is xxx = 999, and the image file having the maximum file number existing in this DCF directory is jjjj = 9999. If it is, no more file names can be generated, and a reply prohibiting shooting is sent.

  When the voice recording mode is instructed by an instruction from a menu or a predetermined button displayed on the display unit 54 and there is a request for obtaining information about an audio file (step S304), the audio directory has not been analyzed (step S305). The voice directory is analyzed, and the analysis result is recorded and held as reference information in the memory 52 in FIG. 1 (step S306).

  In the audio directory, only audio files are handled. Therefore, for example, immediately under ROOT / SNDR / 100CANOC in FIG. 2, only files with extensions handled as audio files, that is, SDR_0001. WAV, SDR_0002. WAV, SDR_0003. Only WAV is handled, and IMG_0004. JPG is not subject to handling.

  That is, in the state of FIG. 2, when a new single voice is recorded, IMG — 0004., which is the maximum value immediately below 100 CANOC. Instead of adding 1 to 0004 in JPG, SDR_0003. 1 is added to WAV, and SDR_0004. Let WAV be the file name.

  If the voice directory has been analyzed (steps S305 and S306), information related to the voice file is acquired from the voice directory analysis result held in step S306 and returned (step S307).

  When there is no information acquisition request for either the image file or the audio file (steps S302 and S304), an end instruction for powering off the digital camera 100 is confirmed (step S308). If it is determined that there is no termination instruction, the process returns to step S302.

  As described above, according to this embodiment, when the digital camera 100 is activated, only the image directory is analyzed, so that the activation process can be speeded up. In addition, in a device that mainly handles image files such as a digital camera, information about the image can be acquired most quickly, and usability is improved.

  In this embodiment, since the target is a digital camera, search of an image directory is given priority. However, if the main file to be handled is other than an image file on another recording / reproducing device, prepare for the main file to be handled. The specified directory may be analyzed first. For example, in a recording / playback device that mainly handles audio files, only the directory of the audio files may be analyzed at the time of activation.

  Also, since the image file and the audio file are managed independently, only the image directory analysis result is referred to for the information acquisition request for the image file, and only the audio directory analysis result is referred to for the information acquisition request for the audio file. Therefore, since unnecessary file information is not mixed in each search result, it is possible to speed up the reference of the analysis result.

  For example, if there is an operation request such as erasing all images from the user through a device button, etc., it is realized by deciding the path of the file to be erased by referring only to the image directory analysis result and erasing the file indicated by the path Is possible. In this case, since the information regarding the independent audio file is not referred to, the presence / absence of the independent audio file does not affect the operation speed of the image file operation.

  FIG. 4 is a view showing an example of an application screen of a personal computer or the like.

  Many recording / playback devices such as digital cameras can transfer recorded files to a personal computer or the like through an interface such as a USB.

  Reference numeral 411 denotes an example of an application screen for performing image file transfer at the time of file transfer.

  Reference numeral 412 denotes an image capture start button on a GUI (Graphical User Interface). An image file corresponding to a reduced image list of the image file in the digital camera 100 displayed on the display unit 413 is transferred from the digital camera 100 to a hard disk in a personal computer or the like. Transfer is instructed to this recording medium.

  Reference numeral 414 denotes a button on the GUI for starting an application that performs audio file transfer.

  Reference numeral 421 denotes an example of an application screen for performing audio file transfer at the time of file transfer.

  Reference numeral 422 denotes an audio import start button on the GUI, which instructs to transfer an audio file corresponding to the audio file information list in the digital camera 100 displayed on the display unit 423 from the digital camera 100 to a recording medium such as a hard disk in the personal computer. To do.

For example, when the application screen 411 is activated, the digital camera 100 is instructed to acquire image file information, that is, to analyze and acquire information below DCIM. As a result, since the voice directory is not analyzed, the presence or absence of the independent voice file does not affect the startup speed of the application screen, and the speed can be increased. The analysis and information acquisition of the voice directory may be performed when the application screen 421 is activated by pressing the GUI button 414.
As described above, in the above-described embodiment, a specific directory having a predetermined directory structure is created in a hierarchy immediately below the root directory at the top of the hierarchical structure from a plurality of photographed images obtained by the photographing unit. In a digital camera having an image recording unit to be recorded on a recording medium, a specific directory different from the specific directory having the same directory structure as the predetermined directory structure is created for a plurality of recording sounds obtained by the recording unit By providing an audio recording unit to be recorded on a recording medium, management is facilitated by making the hierarchical structure when storing image data and audio data the same, and a format (extension) to be handled for each specific directory The usage of each specific directory can be limited by individually defining it.

  In addition, by performing at least one of file search, file playback, file editing, file attribute change, and file deletion for each specific directory, only the directories of image data and audio data are stored. Since the operation is performed, it is not necessary to determine whether the data is audio data or image data for each data file, and the operation speed can be increased.

  In addition, it is possible to shorten the time required to add and / or reproduce image data by preferentially searching the specific directory in which the image is recorded.

  Further, in response to an instruction from an external device such as a PC (Personal Computer), any one of file search, file playback, file editing, file attribute change, and file deletion is performed for each specific directory. Therefore, when an instruction is given from an external device such as a PC, only the necessary image data and audio data directories are operated, so there is no need to determine whether each data file is audio data or image data. , The operation speed can be increased.

  In addition, the management unit of the search target directory simultaneously changes the naming rule for saving a file in a predetermined directory structure to the image recording unit and the audio recording unit, so that sharable setting items are shared in setting operations By doing so, the user's operation can be simplified.

  In the above embodiment, the digital camera has been described as an example. However, the present invention can be applied to recording / playback devices other than the digital camera, and recording that handles data other than image data and audio data. It can also be applied to playback equipment.

  In the above embodiment, the naming rule of the file name in the directory is described as complying with the DCF standard. However, when changing the naming rule when storing a file in the directory structure, the naming rule is changed. Are simultaneously performed on both the image recording directory and the audio recording directory.

(Other embodiments)
In addition, an object of each embodiment is to supply a storage medium (or recording medium) on which a program code of software that realizes the functions of the above-described embodiments is recorded to a system or apparatus, and a computer (or CPU) of the system or apparatus Needless to say, this can also be achieved by reading and executing the program code stored in the storage medium. In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiments, and the storage medium storing the program code constitutes the present invention. Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an operating system (OS) running on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.

  Furthermore, after the program code read from the storage medium is written into a memory provided in a function expansion card inserted into the computer or a function expansion unit connected to the computer, the function is determined based on the instruction of the program code. It goes without saying that the CPU or the like provided in the expansion card or 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.

  When the present invention is applied to the above storage medium, the storage medium stores program codes corresponding to the procedure described above.

1 is a block diagram illustrating a configuration of an embodiment in which a recording / reproducing apparatus for images and sounds of the present invention is applied to a digital camera. It is a figure which shows the structural example of the directory in a recording medium, and a file. It is a flowchart of the search process in the digital camera of one Embodiment. It is a figure which shows an example of the personal computer application screen in one 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 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
DESCRIPTION OF SYMBOLS 70 Operation part 80 Power supply control part 82 Connector 84 Connector 86 Power supply part 90 Interface 92 Connector 94 Interface 96 Connector 98 Recording medium attachment / detachment detection part 100 Recording / reproducing apparatus 102 Protection part 104 Optical finder 110 Communication part 112 Connector (or antenna)
200 recording medium 202 recording unit 204 interface 206 connector 210 recording medium 212 recording unit 214 interface 216 connector 220 audio input unit 222 A / D converter 224 D / A converter 226 audio output unit 228 audio recording start and stop button

Claims (7)

A recording / playback device for recording image files and audio files,
Mode selection means for selecting one of an image recording mode, an image playback mode, and an audio mode;
Discriminating means for discriminating which mode is selected by the mode selecting means;
In a file system of a recording medium, a DCIM directory and a directory for recording an audio file are managed immediately below a root directory at the top of the hierarchical structure, an image file is recorded in the DCIM directory, and the audio file recording File management means for managing not to handle image files recorded in the directory for
After starting the recording / reproducing apparatus and before determining the mode selected by the determining means, the directory for the audio file recording is not analyzed, and the directory of the image file recorded in the DCIM directory is changed. After analyzing and analyzing the image file recorded in the DCIM directory, the mode is discriminated by the discriminating means, and if the selected mode is the voice mode, the voice file recording Control means for controlling to analyze the directory of
A recording / reproducing apparatus comprising:   2. The recording / reproducing apparatus according to claim 1, further comprising photographing means for photographing a subject and acquiring image data when the image recording mode is selected.   3. The recording / reproducing apparatus according to claim 1, wherein the image file recorded in the DCIM directory is given a file number in accordance with the DCF standard. A recording / reproducing apparatus for recording an image file and an audio file , wherein a mode selection unit for selecting one of an image recording mode, an image reproduction mode, and an audio mode, and which mode is selected by the mode selection unit Determining means for determining whether or not the image file and the audio file recorded on the recording medium, and a control means for controlling the managing means, wherein the managing means is a file system of the recording medium. , A DCIM directory and an audio file recording directory are managed immediately below the root directory at the top of the hierarchical structure, an image file is recorded in the DCIM directory, and recorded in the audio file recording directory. Recording and playback device that manages not to handle stored image files There is provided a method of control,
After the control unit starts the recording / playback apparatus and before determining the mode selected by the determination unit , the audio file recording directory is recorded in the DCIM directory without being analyzed. After analyzing the directory of the image file and finishing the analysis of the image file recorded in the DCIM directory, the determination means determines the mode, and when the selected mode is the audio mode, the method of recording and reproducing apparatus characterized by having a more engineering for controlling the management unit to perform the analysis of the directory for the audio file recording. The DCIM image file recorded in the directory, a control method of the recording and reproducing apparatus according to claim 4, characterized in that the file number conforming to the DCF standard is applied. The computer program for executing the more Engineering control method according to claim 4. A computer-readable storage medium storing the program according to claim 6 .

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