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WO2017033617A1 - Système de transmission et de réception d'image mobile - Google Patents

Système de transmission et de réception d'image mobile Download PDF

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Publication number
WO2017033617A1
WO2017033617A1 PCT/JP2016/071007 JP2016071007W WO2017033617A1 WO 2017033617 A1 WO2017033617 A1 WO 2017033617A1 JP 2016071007 W JP2016071007 W JP 2016071007W WO 2017033617 A1 WO2017033617 A1 WO 2017033617A1
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WO
WIPO (PCT)
Prior art keywords
moving image
image data
file
communication
transmission
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/JP2016/071007
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English (en)
Japanese (ja)
Inventor
雄吾 小泉
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Olympus Corp
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Olympus Corp
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Filing date
Publication date
Application filed by Olympus Corp filed Critical Olympus Corp
Publication of WO2017033617A1 publication Critical patent/WO2017033617A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4425—Monitoring of client processing errors or hardware failure

Definitions

  • the present invention relates to a technique for dealing with communication failures in a moving image transmission / reception system that transmits and stores moving images.
  • an endoscope apparatus is connected to a personal computer (PC) or a tablet computer wirelessly, and an image under examination is wirelessly transferred to the personal computer or tablet computer for storage.
  • PC personal computer
  • an image under examination is wirelessly transferred to the personal computer or tablet computer for storage.
  • Patent Literature 1 describes a television broadcast receiving apparatus including a tuner unit that wirelessly transfers a television signal to a display unit.
  • the tuner unit is provided with a memory, and that image data is stored in the memory when the communication state deteriorates, and then the image data recorded in the memory is transferred to the display unit.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a moving image transmission / reception system capable of storing continuous moving images even if the communication state deteriorates during moving image transfer.
  • the transmission An apparatus includes: a first communication unit that performs wireless communication with the reception device; a first communication control unit that controls the first communication unit; and the moving image data according to a communication state as a first recording medium.
  • the first communication control unit stores the video data in a stream format to the receiving device when the communication state is good. If the communication state is poor, the first communication unit is controlled to stop transmission of the moving image data to the receiving device, and the first recording control unit is poor in the communication state.
  • the moving image data is stored in the first recording medium as a recovery moving image file
  • the first communication control unit After receiving the moving image recording end instruction, the first communication unit is controlled to transmit the recovery moving image file stored in the first recording medium to the receiving device.
  • a second communication unit that performs wireless communication; and the moving image data received in the stream format by the second communication unit is stored in a second recording medium in a stream format, and the second communication unit receives the video data
  • a second recording control unit that stores the recovery moving image file in a file format on a second recording medium.
  • the present invention it is possible to provide a moving image transmission / reception system capable of storing continuous moving images even if the communication state deteriorates during moving image transfer.
  • FIG. 1 is an overall view of a moving image transmission / reception system according to an embodiment. It is a flowchart explaining the procedure of the transmission / reception process of moving image data. It is a figure which shows the process of the moving image data when a communication state is favorable. It is a figure which shows the process of the moving image data when a communication state is bad. It is a figure which shows the process of the moving image data when a communication state recovers from the state of FIG. It is a figure which shows the transfer process of moving image data. It is a figure which shows a moving image data combination process. It is a timing chart explaining a process when a communication state deteriorates repeatedly. It is a figure explaining that a some file is couple
  • FIG. 1 is an overall view of a moving image transmission / reception system 1 according to the present embodiment.
  • the moving image transmission / reception system 1 is a system in which an image captured by a video input device such as a camera is transmitted from a transmission device 100 to a reception device 200 such as a personal computer or a tablet terminal, and stored in the reception device 200.
  • the moving image transmission / reception system 1 is used for recording and storing an inspection image of an endoscope using a medical site, for example, an endoscope as a video input device.
  • the moving image transmission / reception system 1 is used for recording and storing experimental images and microscope observation images in a laboratory or the like.
  • the moving image transmission / reception system 1 includes a transmission device 100 that captures image data input from the video input device 300 and wirelessly transmits it, and a reception device 200 that receives and stores the image data transmitted from the transmission device 100.
  • the video input device 300 may be an endoscope device, a microscope device, a monitoring camera device, or the like that outputs an image signal.
  • the video input device 300 may output, for example, an electric signal representing an image signal by a wire to the transmission device 100, or modulate and output an electric signal to an optical signal or a radio signal. Also good.
  • the transmission device 100 includes a transmission control unit 110, a first recording medium 130, a RAM (Random Access Memory) 140, an instruction unit 150, a first communication unit 160, and a video signal input unit 170.
  • the transmission control unit 110 is a control unit that comprehensively controls the entire transmission apparatus 100.
  • the transmission control unit 110 includes a CPU and a memory, and implements each control process by software processing by the CPU that reads a control program from the memory and executes control according to the control program.
  • the first recording medium 130 is a memory for storing moving image data to be transmitted, and is, for example, an HDD (Hard Disk Drive) or a flash memory. On the first recording medium 130, moving image data during a period in which the communication state is bad is recorded as a recovery moving image file in a file format.
  • HDD Hard Disk Drive
  • flash memory On the first recording medium 130, moving image data during a period in which the communication state is bad is recorded as a recovery moving image file in a file format.
  • the RAM 140 is a temporary storage memory, and is particularly used as a video memory for encoding processing or a buffer area for temporarily storing image data for transmission.
  • the instruction unit 150 is used to input an instruction from the operator to the transmission control unit 110, and is a button, dial, keyboard, touch panel, or the like. A moving image recording start instruction and a moving image recording end instruction are input from the instruction unit 150, and the instruction content is notified to the transmission control unit 110.
  • the instruction unit 150 is also called an operation unit.
  • the first communication unit 160 performs wireless communication with the receiving device 200.
  • the first communication unit 160 is connected to a communication unit (second communication unit 260 described later) on the receiving device 200 side by radio, for example, near field radio such as a wireless LAN (Local Area Network) or Bluetooth (trademark).
  • the first communication unit 160 transmits the encoded image data to the reception device 200 in a stream format or a file format.
  • the first communication unit 160 also transmits / receives various data other than image data to / from the receiving device 200.
  • the video signal input unit 170 inputs an image signal output from the video input device 300.
  • the transmission control unit 110 includes a first recording control unit 112, a first identification data adding unit 114, a moving image data generation unit 116, a first communication control unit 118, and a first communication as functional units realized by the CPU.
  • a state detection unit 120 is included.
  • the first recording control unit 112 controls the recording of image data on the first recording medium 130.
  • the 1st identification data provision part 114 provides the identification data which show the time order in the whole moving image data to the header part of the recovery moving image file, for example. This is because it is combined with other moving image data later to form one file as a whole.
  • the moving image data generation unit 116 compresses and encodes the image signal input to the video signal input unit 170.
  • the moving image data generation unit 116 uses, for example, H.264, MPEG4, or AVI (Audio Video Interleave) as an encoding format.
  • the first communication control unit 118 controls the first communication unit 160 to control transmission of image data to the reception device 200 and transmission / reception of various data performed with the reception device 200 as needed.
  • the first communication state detection unit 120 detects the communication state (line quality) on the transmission device 100 side. For example, the first communication state detection unit 120 detects that the communication state is good on the transmitting device 100 side when the radio wave intensity is equal to or greater than a specified value or the number of access points is equal to or less than a specified value. The communication state is good when image data can be expected to have a predetermined bit rate (for example, 54 Mbps). Further, the first communication state detection unit 120 may detect the communication state using error rate detection and a carrier-to-interference wave ratio (C / I ratio) in addition to the reception intensity and the number of access points.
  • C / I ratio carrier-to-interference wave ratio
  • the transmission processing of image data by the transmission control unit 110 will be briefly described.
  • the communication state is determined when the transmission device 100 performs communication on the transmission device 100 side based on the first communication state detection unit 120 and communication on the reception device 200 side based on information of the second communication state detection unit 220 described later. Judging from both states.
  • the transmission control unit 110 determines that the communication state is good when both the transmission state of the transmission device 100 and the reception device 200 are good. Then, the transmission control unit 110 notifies the reception device 200 of the determination result of the communication state.
  • the first communication control unit 118 converts the image data encoded by the moving image data generation unit 116 into the first communication unit 160 in a stream format. Send from.
  • the first communication control unit 118 stops transmitting image data to the receiving device 200. Instead, the first recording control unit 112 records the moving image data encoded by the moving image data generation unit 116 on the first recording medium 130 as a recovery moving image file in a file format during a period of poor communication. .
  • the 1st identification data provision part 114 provides the identification data which shows the time order in the whole moving image data to a recovery moving image file.
  • the transmission control unit 110 determines that the communication state has been recovered (improved)
  • the first communication control unit 118 resumes transmission of image data in the stream format from the first communication unit 160.
  • the first recording control unit 112 ends the first recovery moving image file.
  • the first communication control unit 118 stops transmitting the image data in the stream format to the receiving device 200 and the first recording control unit 112. Starts creating a new recovery video file (second recovery video file). In the first recording medium 130, recovery moving image files corresponding to the number of transmission interruptions are recorded.
  • the first communication control unit 118 transmits the created recovery moving image files to the receiving apparatus 200 in a file format.
  • the receiving apparatus 200 includes a reception control unit 210, a second recording medium 230, a RAM 240, and a second communication unit 260.
  • the receiving device 200 may be a personal computer, a tablet terminal, or a server having a wireless communication function.
  • the reception control unit 210 is a control unit that comprehensively controls the entire receiving device 200.
  • the reception control unit 210 includes a CPU and a memory, and implements each control process by software processing by the CPU that reads a control program from the memory and executes control according to the control program.
  • the second recording medium 230 is a memory for storing received moving image data, and is, for example, an HDD (Hard Disk Drive) or a flash memory.
  • the RAM 240 is a temporary storage memory, and temporarily stores, for example, when received image data is recorded on the second recording medium 230.
  • the second communication unit 260 performs wireless communication with the transmission device 100.
  • the second communication unit 260 receives stream format image data and a recovery moving image file as image data.
  • the second communication unit 260 also transmits / receives various data other than image data to / from the transmission device 100.
  • the reception control unit 210 includes a second recording control unit 212, a second identification data adding unit 214, a second communication control unit 218, a second communication state detection unit 220, and a moving image as functional units realized by the CPU.
  • a data combination unit 222 is included.
  • the second recording control unit 212 controls image data recording on the second recording medium 230.
  • the second recording control unit 212 stores the image data received in the stream format in the stream format, and stores the recovery moving image file received in the file format in the file format. Also, the second recording control unit 212 saves the moving image data saved in the stream format as a file at a predetermined timing.
  • a stream of moving image data is referred to as a first moving image file.
  • the second identification data adding unit 214 adds identification data indicating the order of time in the entire moving image data to, for example, the header portion of the first moving image file. This is because the first moving image file which is a moving image file in a stream format is combined with the recovery moving image file later to form one file as a whole.
  • the second communication control unit 218 controls the second communication unit 260 to control reception of image data from the transmission device 100 and transmission / reception of various data performed with the transmission device 100 as needed.
  • the second communication state detection unit 220 detects the communication state (line quality) on the receiving device 200 side. Since the detection method is the same as that of the first communication state detection unit 120, description thereof is omitted.
  • the moving image data combining unit 222 combines the first moving image file and the recovery moving image file stored in the second recording medium 230 into one file in the recording order (in time series order).
  • the image data reception and storage process performed by the reception control unit 210 will be briefly described.
  • the second communication unit 260 receives stream format image data transmitted from the transmission device 100. As described above, whether or not the communication state is good is notified from the transmission device 100.
  • the second recording control unit 212 stores the received image data in the second recording medium 230 in a stream format.
  • the transmission from the transmission device 100 is stopped, so the second communication unit 260 does not receive the image data.
  • the second recording control unit 212 converts the image data saved in the stream format on the second recording medium 230 into the first moving image file, saves it,
  • the second identification data adding unit 214 adds identification data to the first moving image file.
  • the second recording control unit 212 stores the image data in the stream format received after the resume in the second recording medium 230 in the stream format.
  • the second recording control unit 212 converts the image data stored in the stream format on the second recording medium 230 into the first moving image file.
  • the second recording control unit 212 stores the recovery moving image file transmitted from the transmission device 100 in the second recording medium 230.
  • the moving image data combining unit 222 arranges the recovery moving image file and the first moving image file stored in the second recording medium 230 in the recording order (in chronological order) based on the identification data attached to each file. Join.
  • FIG. 2 is a flowchart for explaining the procedure of moving image data transmission / reception processing.
  • the procedure of moving image data transmission / reception processing will be described with reference to FIGS. 3 to 7 showing the moving image data processing in each scene.
  • a moving image recording start instruction is input from the instruction unit 150 and recording of image data is started.
  • An image signal output from the video input device 300 is input to the video signal input unit 170, encoded by the moving image data generation unit 116, and converted into moving image data.
  • the first communication state detection unit 120 monitors the communication state of the transmission device 100
  • the second communication state detection unit 220 monitors the communication state of the reception device 200 (step S10).
  • the transmission control unit 110 determines whether the communication state on the transmission device 100 side is good based on the information of the first communication state detection unit 120 (step S12).
  • the transmission control unit 110 uses the information of the second communication state detection unit 220 to determine the communication state on the reception device 200 side. Is good (step S14).
  • Information on the communication state detected by the second communication state detection unit 220 is transmitted to the transmission device 100.
  • the transmission control unit 110 determines that the communication state on the receiving device 200 side is good based on the information from the second communication state detection unit 220 (Yes in step S14), the first communication control unit 118 The encoded moving image data is transmitted from the communication unit 160 in a stream format (step S16).
  • the second communication unit 260 of the receiving device 200 receives the moving image data in the stream format.
  • the second recording control unit 212 of the receiving device 200 stores the moving image data in the second recording medium 230 in the stream format (step S18).
  • the transmission control unit 110 determines whether there is a moving image recording end instruction from the instruction unit 150 (step S26). When determining that there is no moving image recording end instruction (No in step S26), the transmission control unit 110 returns to step S10.
  • FIG. 3 is a diagram showing processing of moving image data when the communication state is good in step S16 and step S18.
  • the moving image data is transmitted from the first communication unit 160 to the second communication unit 260 in a stream format, and stored in the second recording medium 230 in a stream format.
  • the transmission control unit 110 determines that the communication state on the transmission device 100 side is not good based on the information of the first communication state detection unit 120 (No in step S ⁇ b> 12), or the second communication state detection
  • the transmitting device 100 shifts to the recovery mode (step S20).
  • the transmission control unit 110 determines the transition to the recovery mode and notifies the receiving apparatus 200 of the transition to the recovery mode.
  • the first recording control unit 112 of the transmission device 100 stores the image data encoded by the moving image data generation unit 116 as a recovery moving image file in the file format in the first recording medium 130 (step S22).
  • the second recording control unit 212 of the receiving device 200 converts the moving image data in the stream format stored in the second recording medium 230 during the period in which the communication state is good (step S24). ).
  • the second identification data adding unit 214 adds identification data to the first moving image file.
  • FIG. 4 is a diagram showing processing of moving image data when the communication state is bad in step S22 and step S24.
  • the first recording control unit 112 stores the encoded moving image data generated by the moving image data generation unit 116 in the first recording medium 130 as a recovery moving image file.
  • the recovery moving image file is illustrated as a moving image file 2R.
  • the second recording control unit 212 converts the stream format moving image data stored in the second recording medium 230 during a period in which the communication state is good into the first moving image file.
  • the second identification data adding unit 214 adds identification data to the first moving image file.
  • the first moving image file is illustrated as moving image file 1.
  • FIG. 5 is a diagram showing processing of moving image data when the communication state is recovered from the state of FIG.
  • the first communication control unit 118 transmits moving image data in a stream format.
  • the first recording medium 130 stores a recovery moving image file (moving image file 2R).
  • the second recording control unit 212 stores the moving image data transmitted in the stream format in the second recording medium 230 in the stream format.
  • the second recording medium 230 stores a first moving image file (moving image file 1) and stream format image data.
  • the transmission control unit 110 determines whether there is an instruction to end moving image recording (Yes in step S26).
  • the transmission control unit 110 determines whether there is an untransferred image on the first recording medium 130 of the transmission device 100 (step S30).
  • An untransferred image is a recovery moving image file of the first recording medium 130.
  • the transmission control unit 110 determines that there is no untransferred image on the first recording medium 130 of the transmission device 100 (No in step S30)
  • the transmission control unit 110 executes a recording end process of the transmission device 100 (step S36).
  • the transmission control unit 110 transmits information on the end of recording to the receiving device 200.
  • the reception control unit 210 executes a recording end process of the receiving device 200.
  • the transmission control unit 110 determines that there is an untransferred image on the first recording medium 130 of the transmission device 100 (Yes in step S30)
  • the first communication control unit 118 transmits the recovery video file to the reception device 200 ( Step S32).
  • the receiving device 200 receives the recovery moving image file.
  • the second recording control unit 212 converts the stored image data stored in the second recording medium 230 into a file.
  • the second identification data adding unit 214 adds identification data to image data to be filed.
  • the moving image data combining unit 222 combines the received recovery moving image file with another file stored in the second recording medium 230 (step S34).
  • the moving image data combining unit 222 combines the recovery moving image file and other files in time order to generate one moving image file as a whole.
  • FIG. 6 is a diagram showing the moving image data transfer process in step S32.
  • the first communication unit 160 transmits the recovery moving image file to the receiving device 200.
  • the second recording control unit 212 stores the received recovery moving image file (moving image file 2R) in the second recording medium 230. Further, the second recording control unit 212 converts the remaining stream-format moving image data into a moving image file.
  • the converted moving image file is indicated as moving image file 3. Movie file 1 is a movie that has already been filed.
  • FIG. 7 is a diagram showing the moving image data combining process in step S34.
  • the second recording medium 230 stores the moving image file 1, the moving image file 3, and the recovery moving image file 2R.
  • the recording order is the moving image file 1, the recovery moving image file 2R, and the moving image file 3.
  • the moving image data combining unit 222 combines the moving image file 1, the recovery moving image file 2R, and the moving image file 3 in the recording order to generate the moving image file S.
  • step S ⁇ b> 34 the process proceeds to step S ⁇ b> 36, and the transmission device 100 and the reception device 200 perform the recording end process.
  • the first recording control unit 112 deletes the recovery image file stored in the first recording medium 130 after the transfer.
  • FIGS. 3 to 7 show an example in which the communication state is deteriorated only once during recording in order to avoid complicated explanation, but the same is true even when interruptions occur multiple times.
  • FIG. 8 is a timing chart for explaining processing when the communication state repeatedly deteriorates. Suppose that time advances to the right. The upper row shows the operation timing of the instruction unit 150, the middle row shows the image data stored in the second recording medium 230, and the lower row shows the recovery image file stored in the first recording medium 130.
  • the image data encoded by the moving image data generation unit 116 is stored as stream-format image data in the second recording medium 230. It is stored in the first recording medium 130 as a recovery moving image file.
  • the image data transmitted in the stream format is stored in the second recording medium 230 in the stream format (filed to become the file 1).
  • the file 2R is stored in the first recording medium 130 as a recovery moving image file. Thereafter, it is assumed that communication state recovery and deterioration are repeated.
  • the image data transmitted in the stream format is filed on the second recording medium 230 and stored as file 1, file 3, and file 5.
  • the first recording medium 130 stores a file 2R, a file 4R, and a file 6R.
  • the file 2R, the file 4R, and the file 6R are transferred to the receiving device 200 and stored in the second recording medium 230. Finally, the image data saved in the stream format is converted into a file 7. Then, the seven files are combined in the order shown in FIG. 9, one file is generated, and the image recording process is completed.
  • the transfer timing of the recovery video file to the receiving device 200 is set after the end of recording, there is no possibility of disturbing image data transmission during recording.
  • identification information indicating the order of time (recording order) in the entire moving picture data is added to the individual files of the recovery moving picture file and the first moving picture file, it becomes easy to combine them in the order of recording.
  • the image data that has been stored in the second recording medium 230 in the stream format up to that point is converted into a file and used as the first moving image file, so that the free time of the receiving device 200 can be used effectively.
  • the moving image transmission / reception system 1 can be stopped when shooting (for example, inspection) is completed. Smoothly move to the next shooting (inspection).
  • the transmission device 100 may be a video processor connected to the endoscope.
  • the video processor includes a light source integrated type in which a video processor and a light source device for supplying illumination light to the endoscope are integrally provided, a separate light source type in which the video processor and the light source device are configured separately, a video processor, Any type in which the light source function is built in the endoscope may be used.
  • Endoscopes used are flexible endoscopes (electronic scope type equipped with an imaging device at the distal end of the endoscope insertion portion), flexible endoscopes (optical images formed by the optical system at the distal end of the insertion portion).
  • a white LED light source device RGB individual LED light source devices, laser light source devices, lamp light source devices, and the like can be used.
  • the instruction unit 150 may be a button provided on the front panel of the video processor or the light source device.
  • the instruction unit 150 may be a touch panel provided on the front panel of the video processor or the light source device.
  • the instruction unit 150 may be a keyboard connected to the video processor, or a switch provided on the grasping unit of the endoscope scope.
  • the instruction unit 150 has been described as being provided in the transmission device 100, but may be provided in the reception device 200.
  • a time stamp attached to the image data may be used as the recording order of the recovery moving image file and the first moving image file.
  • you may give the file name of a recovery moving image file or a 1st moving image file in order of recording time. For example, 0001.mpg, 0002.mpg, and 0003.mpg.
  • the image data for recovery may be stored in the first recording medium in the stream format instead of the file format, and may be transmitted to the receiving apparatus in the stream format.
  • the present invention is not limited to this, and the recovery moving image file may be transmitted from the transmitting device to the receiving device before the recording ends.
  • the communication state detection unit may be simply mounted on either the transmission device 100 or the reception device 200.
  • -Transmission control part 110 and reception control part 210 are not limited to what is realized by software processing by CPU which read the control program, and a part or all may be constituted by hardware.
  • Transmission apparatus 110 Transmission control part 112 1st recording control part 114 1st identification data provision part 116 Movie data generation part 118 1st communication control part 120 1st communication state detection part 130 1st Recording medium 140 RAM 150 instruction unit 160 first communication unit 170 video signal input unit 200 receiving device 210 reception control unit 212 second recording control unit 214 second identification data adding unit 218 second communication control unit 220 second communication state detection Unit 222 moving image data combination unit 230 second recording medium 240 RAM 260 Second communication unit 300 Video input device

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

Selon l'invention, dans un système de transmission et de réception d'image mobile, une première unité de commande de communication (118) d'un dispositif de transmission (100) transmet des données d'image mobile dans un format de flux lorsqu'un état de communication est bon, et arrête la transmission des données d'image mobile lorsque l'état de communication est mauvais, une première unité de commande d'enregistrement (112) stocke les données d'image mobile sous la forme d'un fichier d'image mobile de récupération dans un premier support d'enregistrement lorsque l'état de communication est mauvais, la première unité de commande de communication transmet le fichier d'image mobile de récupération après la réception d'une instruction de fin d'enregistrement d'image mobile, et un dispositif de réception (200) stocke les données d'image mobile reçues dans le format de flux dans un second support d'enregistrement (230) dans un format de flux, et stocke le fichier d'image mobile de récupération dans le second support d'enregistrement.
PCT/JP2016/071007 2015-08-25 2016-07-15 Système de transmission et de réception d'image mobile Ceased WO2017033617A1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010088005A (ja) * 2008-10-02 2010-04-15 Hitachi Ltd コンテンツ送信装置、コンテンツ受信装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010088005A (ja) * 2008-10-02 2010-04-15 Hitachi Ltd コンテンツ送信装置、コンテンツ受信装置

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