WO2023281955A1 - 通信装置、撮像装置、制御方法およびプログラム - Google Patents

通信装置、撮像装置、制御方法およびプログラム Download PDF

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Publication number
WO2023281955A1
WO2023281955A1 PCT/JP2022/022747 JP2022022747W WO2023281955A1 WO 2023281955 A1 WO2023281955 A1 WO 2023281955A1 JP 2022022747 W JP2022022747 W JP 2022022747W WO 2023281955 A1 WO2023281955 A1 WO 2023281955A1
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WO
WIPO (PCT)
Prior art keywords
file
information
external device
storage means
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/022747
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English (en)
French (fr)
Japanese (ja)
Inventor
宗亮 加々谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to CN202280048239.9A priority Critical patent/CN117616408A/zh
Priority to DE112022003417.3T priority patent/DE112022003417T5/de
Priority to GB2400247.9A priority patent/GB2637690A/en
Publication of WO2023281955A1 publication Critical patent/WO2023281955A1/ja
Priority to US18/400,048 priority patent/US12399863B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G06F16/164—File meta data generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/82—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only
    • H04N9/8205—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback the individual colour picture signal components being recorded simultaneously only involving the multiplexing of an additional signal and the colour video signal
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/14—Details of searching files based on file metadata
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
    • G06F16/168—Details of user interfaces specifically adapted to file systems, e.g. browsing and visualisation, 2d or 3d GUIs
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/93—Document management systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32128—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title attached to the image data, e.g. file header, transmitted message header, information on the same page or in the same computer file as the image
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback

Definitions

  • the present invention relates to a system in which an external device and a communication device are communicably connected.
  • Japanese Patent Application Laid-Open No. 2002-200002 discloses a technique of connecting an imaging device such as a digital camera to an external device such as a PC (personal computer) so as to be able to communicate therewith, and transmitting content such as images and sounds stored in the imaging device to the external device. Have been described.
  • a mobile device application content such as still images, videos, and audio generated by an imaging device is sent to a mobile device such as a smartphone, and a communication method such as FTP (File Transfer Protocol) is sent from the mobile device via the network.
  • FTP File Transfer Protocol
  • the mobile application displays content such as still images, videos, and audio stored on the mobile device together with file information such as thumbnails, file names, and recording dates and times so that the user can easily classify them.
  • the mobile application sorts and displays files in chronological order by recording date and time, or filters and displays only files with a specific recording date and time. Can browse and make selections.
  • the WAV (RIFF waveform Audio Format) format which is one of the audio files, does not have a metadata area in which metadata such as recording date and time is described in image files such as still images and moving images. Therefore, when an audio file obtained from outside is saved in a mobile device, the recording date and time of the audio file cannot be saved. Therefore, when displaying a list of files saved on a mobile device using a mobile application, the files can be sorted chronologically by recording date and time, or filtered to display only files with a specific recording date and time. You can't do it.
  • the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to realize a technique that can accurately display files according to their recording dates and times even if files acquired from the outside do not have incidental information such as creation dates and times. is.
  • the present invention provides a communication device that communicates with an external device, stores a file acquired from a first external device, and relates at least one of the creation date and time and update date and time of the file.
  • storage means for storing first information; and when the file acquired from the first external device is the first file attached with the first information in the first external device, storing the first file in a storage means, storing the first information of the first file, and storing the file acquired from the first external device as a second file not accompanied by the first information; 2 file, the second information relating to the date and time when the second file was recorded is acquired from the first external device, and when the second file is stored in the storage means, the and control means for rewriting the first information to the second information.
  • the file can be displayed accurately according to the recording date and time.
  • FIG. 1 is a system configuration diagram of this embodiment.
  • FIG. 2A is a block diagram showing the configuration of the camera device 100 of this embodiment.
  • FIG. 2B is a front view showing the configuration of the camera device 100 of this embodiment.
  • FIG. 2C is a rear view showing the configuration of the camera device 100 of this embodiment.
  • FIG. 3 is an explanatory diagram of directories of files stored in the camera device 100 of the present embodiment.
  • FIG. 4 is a block diagram showing the configuration of the mobile device 200 of this embodiment.
  • FIG. 5 is a software configuration diagram of the mobile device 200 of this embodiment.
  • FIG. 1 is a system configuration diagram of this embodiment.
  • FIG. 2A is a block diagram showing the configuration of the camera device 100 of this embodiment.
  • FIG. 2B is a front view showing the configuration of the camera device 100 of this embodiment.
  • FIG. 2C is a rear view showing the configuration of the camera device 100 of this embodiment.
  • FIG. 3 is an explanatory diagram of directories of files stored in the
  • FIG. 6A is a view exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 6B is a diagram exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 6C is a view exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 6D is a diagram exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 6E is a view exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 6F is a diagram exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 6G is a diagram exemplifying the UI screen of the file transfer application 301 of the mobile device 200 of this embodiment.
  • FIG. 7 is a diagram for explaining processing sequences of the camera device 100 and the mobile device 200 according to the present embodiment.
  • FIG. 8 is a flowchart showing processing of the mobile device 200 of this embodiment.
  • FIG. 9 is a flowchart showing processing of the camera device 100 of this embodiment.
  • FIG. 10 is a flowchart showing processing of the mobile device 200 of this embodiment.
  • FIG. 11A is an explanatory diagram of directory entries of the mobile device 200 of the present embodiment.
  • FIG. 11B is an explanatory diagram of directory entries of the mobile device 200 of the present embodiment.
  • FIG. 12 is a flowchart showing processing of the mobile device 200 of this embodiment.
  • the imaging apparatus of the present invention is applied to camera equipment such as a digital camera
  • the communication apparatus of the present invention is applied to mobile equipment such as smart devices and tablet devices, which are types of mobile phones, and the information of the present invention is described below.
  • An embodiment in which the processing device is applied to a server that provides various services to mobile devices serving as clients will be described in detail with reference to the accompanying drawings.
  • the system of this embodiment includes a camera device 100, a mobile device 200, and a server 300.
  • the camera device 100 and the mobile device 200 are communicably connected via a wireless antenna or a wired cable.
  • the camera device 100 can transfer moving image files and audio files generated by the camera device 100 to the mobile device 200 .
  • the mobile device 200 and the server 300 are communicably connected by mobile data communication using lines such as 4G/LTE and 5G.
  • the mobile device 200 can transfer various types of information stored in the mobile device 200 to the server 300 using a communication method such as FTP (File Transfer Protocol).
  • FTP File Transfer Protocol
  • system configuration of this embodiment is not limited to the above example. to realize file transfer processing between devices.
  • a camera device such as a digital camera will be described, but it is not limited to this, and may be a tablet device with a camera function, an information processing device such as a personal computer, a media player, a surveillance camera, a medical camera, or the like. good too.
  • the control unit 101 is an arithmetic processing unit (CPU) that controls the camera device 100 as a whole. Realize Note that instead of the control unit 101 controlling the entire apparatus, a plurality of pieces of hardware may share processing to control the entire apparatus.
  • CPU arithmetic processing unit
  • the imaging unit 102 includes a lens group including a zoom lens and a focus lens, and a shutter with an aperture function.
  • the image capturing unit 102 also includes an image sensor composed of a CCD or CMOS element for converting an object image into an electric signal, and an A/D converter for converting an analog image signal output from the image sensor into a digital signal.
  • the imaging unit 102 converts the subject image light formed by the lens included in the imaging unit 102 into an electric signal by the imaging element, performs noise reduction processing, etc., and converts it into a digital signal. Output image data.
  • the control unit 101 performs resizing processing such as pixel interpolation and reduction, and color conversion processing on image data captured by the imaging unit 102 .
  • the control unit 101 compresses and encodes the image-processed still image data in the JPEG format or the like, or encodes the moving image data in the moving image compression method such as the MP4 format to generate an image file, and records the data in the recording medium 110 . do.
  • image data is recorded on the recording medium 110 according to the DCF (Design Rule for Camera File System) standard.
  • control unit 101 performs predetermined arithmetic processing using captured image data, and controls the focus lens, aperture, and shutter of the imaging unit 102 based on the obtained calculation result, thereby performing AF ( autofocus) processing and AE (automatic exposure) processing.
  • the non-volatile memory 103 is an electrically erasable/recordable memory, such as an EEPROM. Constants for the operation of the control unit 101, programs, and the like are recorded in the nonvolatile memory 103.
  • FIG. The program here is a program for executing communication processing and control processing described later in this embodiment.
  • the work memory 104 is used as a work area for developing constants and variables for the operation of the control unit 101, programs read from the nonvolatile memory 103, and the like.
  • the working memory 104 is used as a buffer memory for temporarily holding image data captured by the imaging unit 102 and as an image display memory for the display unit 106 .
  • the operation unit 105 consists of operation members such as various switches, buttons, and a touch panel that receive various operations from the user.
  • the operation unit 105 includes a shutter button 105a for taking an image, a playback button 105b for playing back a shot image, and up, down, left, and right buttons for performing various camera settings. 4 direction key 105c etc. are included.
  • the operation unit 105 also includes a touch panel 105d integrally formed with the display unit 106, which will be described later.
  • the operation unit 105 also includes an operation member such as a dedicated connection button for starting communication with an external device via the communication unit 111, which will be described later.
  • the display unit 106 displays a viewfinder image at the time of shooting, displays a shot image, displays characters for interactive operation, and the like.
  • the display unit 106 is, for example, a display device such as a liquid crystal display or an organic EL display.
  • the display unit 106 may be integrated with the camera device 100 or may be an external device connected to the camera device 100 .
  • the camera device 100 may be connected to the display unit 106 and have a function of controlling display on the display unit 106 .
  • the audio input unit 107 uses one or more microphones built into the camera device 100 or connected via an audio terminal to collect sounds around the camera device 100 and convert them into electrical signals.
  • the audio input unit 107 converts an analog audio signal generated by collecting audio around the camera device 100 into a digital signal and outputs the digital signal to the control unit 101 .
  • the control unit 101 performs various audio processing on the digital signal generated by the audio input unit 107 to generate audio data.
  • the microphones may be directional or non-directional.
  • the control unit 101 compresses and encodes the audio data generated by the audio input unit 107 in the WAV format or the like to generate an audio file, and records it on the recording medium 110 .
  • the recording medium 110 records the image data output from the imaging unit 102 and the audio data output from the audio input unit 107 . Also, the control unit 101 reads the image file and the audio file stored in the recording medium 110 in the reproduction mode.
  • the recording medium 110 may be a memory card or a hard disk drive attached to the camera device 100 or may be a flash memory or a hard disk drive built into the camera device 100 .
  • the camera device 100 should have at least means for accessing the recording medium 110 .
  • the communication unit 111 is an interface for connecting with an external device such as the mobile device 200.
  • the camera device 100 of this embodiment can exchange data with an external device via the communication unit 111 .
  • image data generated by the imaging unit 102 and audio data generated by the audio input unit 107 can be transmitted to an external device via the communication unit 111 .
  • the communication unit 111 includes an interface for communicating with an external device via a wireless LAN according to the IEEE802.11 standard.
  • the control unit 101 realizes wireless communication with an external device by controlling the communication unit 111 .
  • the communication method is not limited to a wireless LAN, and may include, for example, an infrared communication interface, a wireless communication interface such as WirelessUSB, a wired communication interface such as a USB cable, HDMI (registered trademark), and IEEE1394.
  • the communication unit 111 of the camera device 100 in this embodiment has an AP mode that operates as an access point in infrastructure mode and a CL mode that operates as a client in infrastructure mode.
  • the camera device 100 in this embodiment can operate as a CL device in the infrastructure mode.
  • the camera device 100 can participate in a network formed by AP devices by connecting to peripheral AP devices.
  • the camera device 100 can operate as a simple AP (hereinafter referred to as a simple AP) with more limited functions, although it is a type of AP. is also possible.
  • the camera device 100 When the camera device 100 operates as a simple AP, the camera device 100 itself forms a network. Devices around the camera device 100 can recognize the camera device 100 as an AP device and participate in the network formed by the camera device 100 . It is assumed that the program for operating the camera device 100 as described above is held in the nonvolatile memory 103 .
  • the camera device 100 in this embodiment is a kind of AP, it is a simple AP that does not have a gateway function for transferring data received from a CL device to an Internet provider or the like. Therefore, even if data is received from another device participating in the network formed by itself, it cannot be transferred to a network such as the Internet.
  • the recording medium 110 is formatted with a file system such as exFAT (Extended File Allocation Table) that can be referenced from the OS (Operating System).
  • exFAT Extended File Allocation Table
  • the control unit 101 records the moving image data generated by the imaging unit 102 as a moving image file in MP4 format under the "100_0420" (the lower four characters are the current date) directory under the "DCIM" directory. Based on the meta template information read from the non-volatile memory 103, the control unit 101 also generates a metadata file (incidental information file) describing the metadata of the moving image file in XML (eXtensible Markup Language) format. Metadata is incidental information used for data management at the transmission destination of moving image data, and information such as the category, title, and comment of moving image data is entered in related tags of the XML file.
  • XML eXtensible Markup Language
  • the control unit 101 records the audio data generated by the audio input unit 107 as an audio file in WAV format under the "AUDIO” directory under the "PRIVATE” directory.
  • the control unit 101 when moving image data and audio data are generated by the imaging unit 102 and the audio input unit 107, the control unit 101 generates or creates a catalog file for file management under the "GANONMSC" directory under the "DCIM" directory. Update.
  • the catalog file records file information that associates the file name of the file stored in the recording medium 110 with the recording date and time.
  • the recording medium 110 stores moving image files recorded in MP4 format, metadata files recorded in XML format, audio files recorded in WAV format, and catalog files for managing file information of each file.
  • a mobile device such as a smart phone, which is a type of mobile phone, will be described, but the present invention is not limited to this, and includes a digital camera with a communication function, a tablet device, a personal computer, a wristwatch-type smart watch, and a glasses-type smart device.
  • a wearable computer such as glasses may be used.
  • the mobile device 200 of this embodiment includes a control unit 201, an imaging unit 202, a nonvolatile memory 203, a working memory 204, an operation unit 205, a display unit 206, a recording medium 210, and a communication unit 211.
  • the basic functions of these elements are the same as those of the camera device 100, and detailed description thereof will be omitted.
  • the non-volatile memory 203 stores an OS (operating system), which is basic software executed by the control unit 201, and applications that cooperate with the OS to realize applied functions.
  • the nonvolatile memory 203 also stores an application for communicating with the camera device 100 and the server 300 .
  • a file transfer application for communicating with the camera device 100 and the server 300 is also stored in the nonvolatile memory 203 .
  • the nonvolatile memory 203 also stores a file management application that saves and manages image files such as still image data and moving image data acquired from the camera device 100, metadata files related to image files, and audio files.
  • image files such as still image data and moving image data acquired from the camera device 100, metadata files related to image files, and audio files, particularly image files, are stored and managed. application is stored.
  • the processing of the mobile device 200 of this embodiment is realized by reading software provided by the application. It is assumed that the application has software for using the basic functions of the OS installed on the mobile device 200 . Note that the OS of the mobile device 200 may have software for realizing the processing in this embodiment.
  • the communication unit 211 includes a wireless communication interface for wirelessly communicating with external devices such as the camera device 100 and the server 300 .
  • the control unit 201 realizes wireless communication with an external device by controlling the communication unit 211 .
  • the communication unit 211 may be directly connected to the camera device 100 and the server 300, or may be connected via an access point.
  • a protocol for communicating data for example, PTP/IP (Picture Transfer Protocol over Internet Protocol) through a wireless LAN can be used.
  • communication between the camera device 100 and the server 300 is not limited to this.
  • the communication unit 211 can include a wireless communication module such as an infrared communication module, a Bluetooth (registered trademark) communication module, and a WirelessUSB.
  • a wired connection interface such as a USB cable, HDMI (registered trademark), or IEEE1394 may be used.
  • the public network connection unit 213 is an interface used for wireless communication via a wide area network (WAN) such as 4G/LTE and 5G.
  • Mobile device 200 can make a call or perform data communication with another device via public network connection section 213 .
  • the control unit 201 inputs and outputs audio signals via the microphone 214 and the speaker 215 .
  • the public network connection unit 213 is not limited to 4G/LTE and 5G, and may use other communication schemes such as local 5G, WiMAX, ADSL, and FTTH.
  • the public network connection unit 213 is an antenna, and the control unit 201 can connect to the public network via the antenna.
  • the communication unit 211 and the public network connection unit 213 do not necessarily need to be configured by independent hardware, and for example, one antenna can be used for both.
  • the mobile device 200 Since the communication speed realized by the communication unit 211 is faster than the communication speed realized by the public network connection unit 213, the mobile device 200 according to the present embodiment can communicate via the public network connection unit 213. Priority is given to communication via the communication unit 211 when no communication is being made with another device.
  • fixed data such as parameters and software such as firmware are stored in the nonvolatile memory 203 .
  • the recording medium 210 stores an OS 310 that is basic software executed by the control unit 201 and a file management application 306 and an image management application 308 that are application software executed by the control unit 201 . Further, as application software, a file transfer application 301 having a function of connecting to the camera device 100 to acquire and save files and connecting to the server 300 to transfer files is stored.
  • the mobile device 200 When the user turns on the power switch included in the operation unit 205 of the mobile device 200, the mobile device 200 is activated, and the control unit 201 reads the OS 310 from the recording medium 210, develops it in the working memory 204, and executes it. Also, each component of the mobile device 200 is controlled according to the OS 310 and applications installed in the OS 310 .
  • the OS 310 not only has the function of controlling each component of the mobile device 200, but also provides various services to applications. As a function of this embodiment, the OS 310 has a communication service 311 .
  • the communication service 311 controls on/off of communication functions, connection with external devices, and data communication with connected external devices. It also controls the provision of data obtained by the communication function to applications, and the transmission and reception of data to and from external devices in response to requests from applications.
  • the file management application 306 has a file management service 307 that manages files stored in the recording medium 210 .
  • the file management application 306 also controls reading of managed files from the recording medium 210 and writing of files to the recording medium 210 in response to requests from applications.
  • the image management application 308 has an image management service 309 that manages image files such as still images and moving images stored in the recording medium 210 . Unlike the file management application 306, the image management application 308 has functions specialized for managing image files, such as a thumbnail list display function for image files and a frame-by-frame advance function for moving image files. The image management application 308 also controls reading of managed files from the recording medium 210 and writing of files to the recording medium 210 in response to requests from applications.
  • the files managed by the file management application 306 and the files managed by the image management application 308 are stored in different areas of the recording medium 210 and cannot be referred to each other.
  • the file transfer application 301 generates a UI screen to be displayed on the display unit 206 in the display control 302 .
  • the configuration of the UI screen will be described later with reference to FIGS. 6A-6G.
  • the file transfer application 301 communicates with the camera device 100 using the communication service 311, and transfers the main data of each file stored in the camera device 100, file list information, and file transfer information. Get file information. Also, using the communication service 311 , the file stored in the recording medium 210 is read and transmitted to the server 300 .
  • the file transfer application 301 uses the file management service 307 in the file management service control 304 to write and save the main body data file held in the working memory 204 to the recording medium 210 .
  • the file transfer application 301 uses the image management service 309 in the image management service control 305 to write and save the main body data file held in the working memory 204 to the recording medium 210 .
  • a UI screen 501 shown in FIG. 6A is a function selection screen that is displayed while being connected to the camera device 100 after the file transfer application 301 is activated.
  • the function selection screen 501 has a button 502 for selecting a function for displaying files saved in the camera device 100 and a button 503 for selecting a function for displaying files saved in the recording medium 210 of the mobile device 200 . include.
  • a UI screen 504 shown in FIG. 6B is a list screen of files saved in the camera device 100 connected to the mobile device 200 .
  • a list screen 504 is displayed when the button 502 is tapped on the function selection screen 501 .
  • the list screen 504 includes a button 505 for returning to the previous screen, and buttons 506 and 507 for selecting the recording medium 110 to refer to the file when the camera device 100 has a plurality of recording media 110 .
  • the list screen 504 in FIG. 6B is in a state where the recording medium 110 of the underlined button 506 is selected, and a list of files saved in the recording medium 110 displayed on the button 506 is displayed. .
  • Components 508 to 514 on the list screen 504 in FIG. 6B are generated from the file list information and related information saved in the camera device 100 connected to the mobile device 200. Note that the display contents of the components 508 to 512 will be described below, and a method of acquiring information related to files for displaying the components 508 to 512 will be described later with reference to FIGS. 7 to 9. FIG.
  • a component 508 is a component for displaying thumbnails of files.
  • the thumbnail attached to the moving image file is displayed. display the image shown.
  • a part 509 is an icon indicating that the video file and audio file are proxy files.
  • a proxy file is a file whose data is reduced by lowering the bit rate and resolution compared to a normal file. It can be determined that there is On the list screen 504 of FIG. 6B, all files are proxy files, so icons 509 are superimposed on all thumbnails.
  • the part 510 is a character string indicating the name of the file
  • the part 511 is a character string indicating the recording date and time of the file.
  • a component 512 is an icon indicating whether or not a metadata file indicating metadata of a moving image file is stored in the same recording medium.
  • Parts 513 and 514 are icons that indicate the file selection/non-selection status, and are displayed superimposed on the thumbnail 508 .
  • An icon 513 indicates a selected state
  • an icon 514 indicates a non-selected state.
  • a button 515 is a button to start saving a file from the camera device 100 to the mobile device 200 .
  • a file to be saved is a selected file.
  • Components 516 to 518 on the list screen 504 in FIG. 6C are buttons for selecting an application to save a file to be captured from the camera device 100 to the mobile device 200 while the camera device 100 is connected to the mobile device 200.
  • the button 515 of the list screen 504 of is tapped, the list screen 504 is superimposed and displayed.
  • a component 516 is a button for selecting the file management application 306 as the file save destination application.
  • the button 516 is tapped, the file saved in the camera device 100 is transferred to the mobile device 200 and saved in the file management application 306.
  • the file to be saved by the file management application 306 is the selected file and the metadata file related to the selected file.
  • a component 517 is a button for selecting the image management application 308 as the file save destination application.
  • the button 517 is tapped, the file saved in the camera device 100 is transferred to the mobile device 200 and saved in the image management application 308.
  • the image management application 308 is an application capable of managing image files, files to be saved by the image management application 308 are only selected moving image files.
  • a button 518 is a button for canceling the saving of the file. Tapping button 518 returns to list screen 504 in FIG. 6B.
  • Components 519 to 521 on the function selection screen 501 in FIG. 6D are buttons for selecting a read source application when reading a file from the recording medium 210.
  • Tap button 503 on the function selection screen 501 in FIG. is superimposed on the function selection screen 501 of .
  • a component 519 is a button for selecting the file management application 306 as the file read source application. When the button 519 is tapped, the process of reading the file from the file management application 306 is started. A selection screen for files managed by the file management application 306 will be described later with reference to FIG. 6E.
  • a component 520 is a button for selecting the image management application 308 as the file read source application. When button 520 is tapped, processing for reading a file from image management application 308 is started. A selection screen for files managed by the image management application 308 will be described later with reference to FIG. 6F.
  • a button 521 is a button for canceling file reading, and when the button 521 is tapped, the screen returns to the function selection screen 501 in FIG. 6A.
  • a UI screen 522 shown in FIG. 6E is a screen provided by the OS 310 and is a selection screen for selecting a file to be read out of files managed by the file management application 306 .
  • the selection screen 522 is displayed superimposed on the function selection screen 501 of FIG. 6A when the button 519 of the function selection screen 501 of FIG. 6D is tapped.
  • files that can be selected on the selection screen 522 are only MP4 format moving image files and WAV format audio files.
  • the selection screen 522 in FIG. 6E includes parts 523-529.
  • a part 523 is a button for returning to the previous screen, and when the return button 523 is tapped, the function selection screen 501 of FIG. 6A is displayed.
  • the part 524 is a button for completing file selection, and when the button 524 is tapped, a list screen 535, which will be described later with reference to FIG. 6G, is displayed.
  • a component 525 is a component for displaying thumbnails of files.
  • the thumbnail attached to the moving image file is displayed. display an image showing
  • the part 526 is a character string indicating the name of the file
  • the part 527 is a character string indicating the recording date and time of the file.
  • Parts 528 and 529 are icons that indicate file selection/non-selection status, and are displayed superimposed on the thumbnail 525 .
  • An icon 528 indicates a selected state
  • an icon 529 indicates a non-selected state.
  • a UI screen 530 shown in FIG. 6F is a screen provided by the OS 310, and is a selection screen for selecting a file to be read out of the files managed by the image management application 308.
  • the selection screen 530 is displayed superimposed on the function selection screen 501 of FIG. 6A when the button 520 of the function selection screen 501 of FIG. 6D is tapped.
  • files that can be selected on the selection screen 530 are assumed to be only moving image files.
  • a button 531 is a button for canceling file selection and returning to the previous screen.
  • the return button 531 is tapped, the screen returns to the function selection screen 501 in FIG. 6D.
  • the button 532 is a button for completing file selection, and when the button 532 is tapped, a list screen 535, which will be described later with reference to FIG. 6G, is displayed.
  • a component 533 is a component for displaying thumbnails of files, and displays thumbnails added to video files.
  • the component 534 is an icon that indicates the file selection state, and is displayed superimposed on the thumbnail 533. Icon 534 is displayed only when a file is selected. When the file thumbnail 533 is tapped, the file is switched between selected/non-selected, and the display/non-display of the icon 534 is switched according to the selected/non-selected state of the file.
  • a UI screen 535 shown in FIG. 6G is a list screen of files selected on the selection screen 522 of FIG. 6E or the selection screen 530 of FIG. 6F. It is displayed when the button 532 is tapped.
  • Components 508 to 512 on the list screen 535 of FIG. 6G are the same as the components 508 to 512 on the list screen 504 of FIG. 6B, and are selected on the selection screen 522 of FIG. Generated from file listing information and related information. A method of acquiring related information of files for displaying the parts 508 to 512 will be described later with reference to FIGS. 10 to 12.
  • FIG. 10 A method of acquiring related information of files for displaying the parts 508 to 512 will be described later with reference to FIGS. 10 to 12.
  • a button 505 is a button for returning to the previous screen, and when the button 505 is tapped, the screen returns to the function selection screen 501 in FIG. 6A.
  • a button 536 is a button for starting the process of transmitting a file from the mobile device 200 to the server 300 .
  • Files to be sent are all files displayed on the list screen 535 .
  • a function may be provided to collectively transmit the files selected on the list screen 504 of FIG.
  • the file transfer application 301 of this embodiment has the following two functions.
  • the first function is to communicate with the camera device 100 and save in the mobile device 200 a file selected by the user from the video files and audio files saved in the camera device 100 .
  • the second function is to communicate with the server 300 and transmit (upload) to the server 300 files selected by the user from the video files and audio files stored in the mobile device 200 .
  • the file transfer application 301 can transfer the video files and audio files stored in the camera device 100 to the server 300 via the mobile device 200 .
  • FIG. 7 shows the processing sequence of the camera device 100 and the mobile device 200 from when the tap of the button 502 is detected on the function selection screen 501 of FIG. 6A until the list screen 504 is displayed.
  • the mobile device 200 when the mobile device 200 detects that the button 502 has been tapped on the function selection screen 501 of FIG. 6A, it transmits a file list information acquisition request to the camera device 100.
  • the file list information is generated using the file information stored in the recording medium 110.
  • the file list information includes file names, format information, and file IDs.
  • a file ID is identification information that is uniquely generated for each file, and is used when requesting the camera device 100 to acquire file information and a body data file, for example.
  • the camera device 100 when the camera device 100 generates the file list information, it transmits the file list information to the mobile device 200 as a response to the request at T701.
  • the mobile device 200 Upon receiving the file list information from the camera device 100, the mobile device 200 refers to the formats of all files included in the file list, and executes processing according to the formats.
  • the mobile device 200 transmits a video file information acquisition request to the camera device 100 in T704. In this case, by assigning a file ID, the file from which moving image file information is to be acquired is designated.
  • the camera device 100 when the camera device 100 receives the moving image file information acquisition request from the mobile device 200, it generates moving image file information based on the information stored in the metadata storage area of the file.
  • the metadata storage area of an MP4 format file includes the recording date and time as detailed information about the file.
  • the camera device 100 stores a thumbnail in the metadata storage area when generating a moving image file. do.
  • the moving image file information generated by referring to the metadata storage area of the file includes at least the thumbnail and the recording date and time. Information as to whether or not a related metadata file exists is also included in the moving image file information.
  • the camera device 100 when the camera device 100 generates the moving image file information of the file specified by the moving image file information acquisition request of the mobile device 200, it transmits the moving image file information to the mobile device 200 as a response to the request at T704.
  • the mobile device 200 transmits a voice file information acquisition request to the camera device 100 in T707.
  • the file from which the audio file information is to be obtained is designated.
  • the camera device 100 when the camera device 100 receives the audio file information acquisition request from the mobile device 200, it generates audio file information based on the file information of the catalog file stored in the recording medium 110. It is assumed that the file information of the catalog file includes the date and time of recording, and the audio file information includes at least the date and time of recording.
  • the camera device 100 when the camera device 100 generates the audio file information of the file specified by the mobile device 200, it transmits the audio file information to the mobile device 200 as a response to the audio file information acquisition request of T707.
  • the file format is not MP4 or WAV, it is determined that the file is not to be displayed on the list screen 504 of FIG. 6B, and the mobile device 200 does not execute the process.
  • the list screen 504 in FIG. Generate When the mobile device 200 executes the format-specific processing for all the files, the list screen 504 in FIG. Generate. It should be noted that the arrangement order of the files on the list screen 504 of FIG. 6B is in descending order of recording date and time by default.
  • the file transfer application 301 will be described as the subject of processing. , OS services, etc.) is expanded in the working memory 204 and executed. The same applies to FIGS. 10 and 12, which will be described later. 8 is triggered by the operation unit 205 detecting tapping of the button 502 while the function selection screen 501 of FIG. 6A is being displayed in the file transfer application 301. The process of FIG.
  • the file transfer application 301 acquires file list information from the camera device 100 from the communication service control 303 in order to display a file list screen 504 stored in the camera device 100 .
  • the file transfer application 301 acquires the file list information from the camera device 100, it executes the processing of steps S802 to S805 for all files included in the file list information.
  • the file transfer application 301 determines whether the file format is MP4. If the file transfer application 301 determines that the file format is MP4 format, the process proceeds to S803, and if it determines that the file format is not MP4 format, the process proceeds to S804.
  • the file transfer application 301 acquires moving image file information from the camera device 100 .
  • the file transfer application 301 refers to the file list information and determines whether the file format is WAV format. If the file transfer application 301 determines that the format of the file is the WAV format, it advances the process to S805, and if it determines that it is not the WAV format, it ends the process and executes the processes from S802 on the next file. do.
  • the file transfer application 301 acquires information necessary for generating the file list screen 504 from the camera device 100 by executing the processing of S802 to S804 for all files.
  • the file transfer application 301 generates components 508 to 512 on the list screen 504 in FIG.
  • the file transfer application 301 generates a list screen of files saved in the camera device 100.
  • FIG. 9 The processing in FIG. 9 is implemented by the control unit 101 developing the program stored in the nonvolatile memory 103 in the working memory 104 and executing the program. 9 is triggered by the fact that the communication unit 111 receives a PTP/IP communication command from the mobile device 200.
  • FIG. 9 is triggered by the fact that the communication unit 111 receives a PTP/IP communication command from the mobile device 200.
  • control unit 101 analyzes the type of PTP/IP communication command received by the communication unit 111.
  • control unit 101 determines whether the command type is a file list information acquisition request. If the control unit 101 determines that the command type is a file list information acquisition request, the process advances to S903, and if it determines that the command type is not a file list information acquisition request, the process advances to S905.
  • control unit 101 analyzes the directory entries of the recording medium 110 and obtains information of all files stored in the recording medium 110 .
  • control unit 101 In S904, the control unit 101 generates a file ID for each file from the file information acquired in S903, and generates file list information including the file name, format, and file ID as a response command.
  • control unit 101 determines whether or not the command type is a request to acquire moving image file information. If the control unit 101 determines that the command type is a moving image file information acquisition request, it advances the processing to S906, and if it determines that the command type is not a moving image file information acquisition request, it advances the processing to S908.
  • control unit 101 refers to the metadata storage area of the moving image file specified by the file ID, and acquires detailed information about the file including the thumbnail and recording date and time.
  • control unit 101 In S907, the control unit 101 generates, as a response command, movie file information including a thumbnail and recording date and time from the detailed information of the movie file acquired in S906.
  • control unit 101 determines whether the command type is a voice file information acquisition request. If the control unit 101 determines that the command type is a voice file information acquisition request, the process proceeds to S909, and if it determines that the command type is not a voice file information acquisition request, the process proceeds to S911.
  • control unit 101 refers to information in the catalog file stored in the recording medium 110, and acquires detailed information including the recording date and time of the audio file specified by the file ID.
  • control unit 101 In S910, the control unit 101 generates audio file information including the recording date and time as a response command from the detailed information of the audio file acquired in S909.
  • control unit 101 determines whether the command type is a request to acquire the main data file. If the control unit 101 determines that the command type is a body data file acquisition request, the process proceeds to S912, and if it determines that the command type is not a body data file acquisition request, the process proceeds to S914.
  • control unit 101 acquires the body data file specified by the file ID.
  • control unit 101 generates the body data file obtained at S912 as a response command.
  • control unit 101 executes processing according to a command type other than the above command type and generates a response command. Since the process of S914 has little relevance to the present embodiment, detailed description thereof will be omitted.
  • control unit 101 causes the communication unit 111 to transmit the response command generated in any one of S904, S907, S910, and S913 to the mobile device 200, which is the transmission source of the communication command.
  • the camera device 100 exchanges file information and body data files with an external device such as the mobile device 200 via the communication unit 111 .
  • the user selects a file that the user wants to transfer and save to the mobile device 200 from the files saved in the camera device 100 on the list screen 504 in FIG. 6B.
  • the user taps button 515 and taps button 516 or button 517 in FIG. 6C to select file management application 306 or image management application 308 as a file save destination.
  • the mobile device 200 acquires the selected main body data file from the camera device 100 and writes it to the storage destination application management area of the recording medium 210 .
  • FIG. 10 is a flowchart showing file saving processing of the mobile device 200 when the file management application 306 is selected as the saving destination application.
  • the file transfer application 301 transmits a body data file acquisition request to the camera device 100 from the communication service control 303, and acquires the selected body data file.
  • the processing in response to the body data file acquisition request in the camera device 100 is as described with reference to FIG.
  • the file transfer application 301 writes the main data file acquired from the camera device 100 to the management area of the file management application 306 of the recording medium 210 through the control 304 of the file management service.
  • the file transfer application 301 determines whether the file format is the audio file format. If the file transfer application 301 determines that the file format is the audio file format, the process advances to S1004. If the transfer application 301 determines that the format of the file is not the format of the audio file, the transfer application 301 ends the processing and executes the processing from S1001 on the next file.
  • the file transfer application 301 overwrites the creation date and update date and time of the directory entry in the management area of the file management application 306 with the recording date and time of the audio file acquired from the camera device 100 from the file management service control 304 .
  • 11A and 11B exemplify the data configuration of the directory entry in the management area of the file management application 306 in S1004 of FIG.
  • a directory entry describes information about files managed by the file management application 306, and includes a file name 1101, an extension 1102, a creation date and time 1103, an update date and time 1104, and a file size 1105.
  • FIG. 11A exemplifies directory entries when the determination in S1003 of FIG. there is
  • the date and time when the file was saved is written in the creation date and time and update date and time of the directory entry.
  • the date and time the file was saved is written in the creation date and time and the update date and time of the directory entry. It may be updated.
  • FIG. 11B exemplifies directory entries when the determination in S1003 of FIG. 10 is YES and the overwriting process is executed in S1004.
  • the file obtained and saved from the outside is an audio file
  • the creation date and time and update date and time of the directory entry are overwritten with the recording date and time when the audio file was obtained from the outside.
  • the mobile device 200 can accurately display a list of externally acquired files according to the recording date and time.
  • the process of FIG. 12 triggers that the file management application 306 detects the tap of the button 524 with one or more files selected in the file selection screen 522 of FIG. is started as
  • the file transfer application 301 executes the processes shown in S1201 to S1203 for all the selected files.
  • the file transfer application 301 determines whether the file is in MP4 format. If the file transfer application 301 determines that the file is in MP4 format, the process advances to S1202; if it determines that the file is not in MP4 format, the process advances to S1203.
  • the file transfer application 301 analyzes the metadata storage area of the file and acquires movie file information including the file thumbnail and recording date and time.
  • the file transfer application 301 determines whether the file is in WAV format. If the file transfer application 301 determines that the file is in WAV format, it advances the process to S1204, and if it determines that the file is not in WAV format, it ends the process, and executes the processes from S1201 on the next file. .
  • the file transfer application 301 refers to the directory entry of the file management application 306 and interprets the file creation date and time as the recording date and time, thereby acquiring audio file information.
  • the file transfer application 301 acquires the information necessary for generating the file list screen 535 from the file management application 306.
  • the file transfer application 301 generates the file list screen 535 of FIG.
  • the arrangement order of the files on the list screen 535 of FIG. 6G is the descending order of the recording date and time by default.
  • the file transfer application 301 displays a list screen of files saved in the file management application 306, it is possible to display the correct recording date and time even for audio files whose recording date and time cannot be stored internally. can be done.
  • the audio file may be a file of another format in which the recording date and time cannot be saved.
  • an example of an audio file was described as a file type for which the recording date and time cannot be saved, but any file for which the recording date and time cannot be saved does not have to be an audio file. For example, even when handling an XML-format metadata file generated when shooting a moving image, processing similar to that for an audio file may be performed.
  • the presence or absence of the recording date and time for the file is determined from the file format. You may make it manage by a means. In that case, management means may be provided to manage whether or not the file creation date and time and update date and time have been updated when the file is saved in the mobile device 200, and to refer to when reading the file information from the mobile device 200. .
  • the present invention supplies a program that implements one or more functions of each embodiment to a system or device via a network or a storage medium, and one or more processors of the computer of the system or device reads and executes the program. It can also be realized by processing to The invention can also be implemented by a circuit (eg, an ASIC) that implements one or more functions.
  • a circuit eg, an ASIC
  • DESCRIPTION OF SYMBOLS 100... Camera apparatus, 101... Control part, 102... Imaging part, 106... Display part, 107... Voice input part, 111... Communication part, 200... Mobile device, 201... Control part, 205... Operation part, 206... Display part , 210... Recording medium, 211... Communication unit, 300... Server

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