WO2019044232A1 - Dispositif de fourniture de signal d'image, système d'affichage, procédé de fourniture de signal d'image, programme de commande et support d'enregistrement - Google Patents

Dispositif de fourniture de signal d'image, système d'affichage, procédé de fourniture de signal d'image, programme de commande et support d'enregistrement Download PDF

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Publication number
WO2019044232A1
WO2019044232A1 PCT/JP2018/026950 JP2018026950W WO2019044232A1 WO 2019044232 A1 WO2019044232 A1 WO 2019044232A1 JP 2018026950 W JP2018026950 W JP 2018026950W WO 2019044232 A1 WO2019044232 A1 WO 2019044232A1
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WIPO (PCT)
Prior art keywords
image signal
cable
cables
signal supply
video
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Application number
PCT/JP2018/026950
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English (en)
Japanese (ja)
Inventor
神田　貴史
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シャープ株式会社
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Publication of WO2019044232A1 publication Critical patent/WO2019044232A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • 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 an image signal supply device, a display system, an image signal supply method, a control program, and a recording medium.
  • Patent Document 1 a plurality of video signal transmission paths are provided, and when one of the video signal transmission paths is interrupted, a normal video is displayed using only the signals related to the remaining video signal transmission paths. A method is disclosed.
  • Patent Document 1 is an invention that converts a combination of left and right images and frames relating to a stereoscopic video. Therefore, even if the method disclosed in Patent Document 1 is used, the above problem is not solved.
  • One aspect of the present invention has been made in view of the above problems, and in the case of supplying an image signal related to each of a plurality of partial areas constituting a display area of a display screen using a plurality of cables, connection state It is an object of the present invention to realize an image signal supply device that prevents the occurrence of a missing image when there is a cable that does not exist in the above.
  • an image signal supply device concerning one mode of the present invention uses a plurality of cables to a display device, and each of a plurality of partial fields which constitute a display field of the display screen concerned.
  • a cable state detection unit for detecting whether or not each of the plurality of cables is connected, and the cable state detection unit is at least one of the plurality of cables when supplying an image (video) signal relating to
  • An image signal supply unit for supplying an image signal to be displayed over the entire display area with respect to the cables other than the cables not in the connection state among the plurality of cables when it is detected that Prepare.
  • FIG. 1 is a functional block diagram showing a display system 1 according to Embodiment 1.
  • 5 is a flowchart showing the flow of processing according to the first embodiment. It is a figure which shows the example which displays 8K imaging
  • FIG. 7 is a functional block diagram showing a display system 1a according to a first modification of the first embodiment. 7 is a flowchart showing the flow of processing according to the second embodiment. It is a figure which shows the example which displays 4 K imaging
  • HDMI standard assumed to be mainly used in the present invention will be supplemented.
  • HDMI High-Definition Multimedia Interface
  • HPD Hot Plug Detect
  • Embodiment 1 Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 5.
  • any one of the 4K video signals is not properly transmitted.
  • a process of up-converting another 4K image and displaying it on the display unit in this case will be described.
  • FIG. 1 is a functional block diagram showing a display system 1 according to the present embodiment.
  • the display system 1 includes an image signal supply device 2 and a television receiver 3.
  • the image signal supply device 2 includes the HDMI 2.0 transmission ports 10A to 10D, a control unit 20, and a storage unit 30.
  • the control unit 20 includes a cable state detection unit 21 and an image signal supply unit 22.
  • the television receiver 3 includes a tuner 4 and a display device 5.
  • the display device 5 includes the HDMI 2.0 reception ports 11A to 11D, a control unit 40, a video processing unit 50, a storage unit 60, and a display unit 70.
  • the HDMI 2.0 transmission ports 10A to 10D are each capable of outputting a 3840 ⁇ 2160 resolution called 4K video via an HDMI 2.0 compatible cable.
  • the HDMI 2.0 transmission ports 10A to 10D included in the image signal supply device 2 and the HDMI 2.0 reception ports 11A to 11D included in the display device 5 are respectively connected by an HDMI (2.0 compatible) cable.
  • the control unit 20 is a control circuit that controls the entire image signal supply device 2, and also functions as the cable state detection unit 21 and the image signal supply unit 22.
  • the cable state detection unit 21 detects whether or not the connection state can be appropriately communicated with the display device 5 by each HDMI cable connected to the HDMI 2.0 transmission ports 10A to 10D, using the HPD function of the HDMI described above Do.
  • the image signal supply unit 22 transmits video signals to the HDMI 2.0 transmission ports 10A to 10D.
  • the storage unit 30 holds various data and the like. It is assumed that each 4K video data forming the 8K video is initially stored in the storage unit 30.
  • the image signal conversion unit 31 generates a 4K video having the same content as the 8K video.
  • the control unit 40 is a control circuit that controls the entire display device 5.
  • the image processing unit 50 is a control circuit that integrates four 4K images input to the HDMI 2.0 reception ports 11A to 11D included in the display device 5 into one 8K image, and also functions as an image converter Do.
  • the control unit 40 may function as the video processing unit 50.
  • the storage unit 60 holds various video data and the like.
  • the display unit 70 is a display panel that displays a moving image, and has a resolution of 7680 ⁇ 4320 that reproduces an 8K image.
  • FIG. 2 is a flowchart showing the flow of processing according to the present embodiment.
  • S101 the above-described HPD function is used to determine whether the cable status detection unit 21 can appropriately transmit data from the HDMI 2.0 transmission ports 10A to 10D to the corresponding HDMI 2.0 reception ports 11A to 11D. Use the judgment.
  • step S102 If the data can be properly transmitted, the process proceeds to step S102. If the data can not be properly transmitted between at least one of the ports due to disconnection of the cable connecting the ports, the process proceeds to step S103. (S102)
  • the image signal supply unit 22 causes the HDMI 2.0 transmission ports 10A to 10D to transmit signals related to each 4K image forming the 8K image stored in the storage unit 30.
  • the HDMI 2.0 reception ports 11A to 11D respectively receive the 4K video signal.
  • the control unit 40 stores data related to the 4K video signal in the storage unit 60.
  • the image processing unit 50 integrates the four 4K images into one 8K image.
  • FIG. 3 is a diagram showing an example of displaying the 8K video on the display unit 70. As shown in FIG. 3
  • the control unit 40 refers to the data stored in the storage unit 60 and causes the display unit 70 to display the 8K video as shown in FIG. 3.
  • the cable status detection unit 21 monitors the HDMI 2.0 transmission ports 10A to 10D at predetermined unit time intervals.
  • the image signal conversion unit 31 refers to the 8K video (each 4K video that is a partial video constituting the above) stored in the storage unit 30 and stores the 4K video having the same content as the 8K video on the storage unit 30.
  • the generated 4K video is stored in the storage unit 30.
  • the 8K video signal is converted into a 4K video signal to be displayed over the entire display area of the display unit 70 using only a cable other than the cable which is not in the connected state.
  • the image signal conversion unit 31 when the image signal conversion unit 31 generates an image signal to be displayed in the entire display area by using only a cable other than the cable which is not in the connection state with reference to the image signal regarding each of the plurality of partial areas. It may be expressed.
  • the storage unit 30 initially holds data related to 4K video having the same content as the 8K video, the data may naturally be used for the subsequent processing.
  • the image signal supply unit 22 can properly communicate the 4K image signal having the same content as the 8K image stored in the storage unit 30 as an image signal to be displayed on the entire display area of the display unit 70.
  • Transmission ports 10A to 10D are supplied from any port (cable) to stop transmission of the video signal from other than the above ports.
  • the port automatically selects, for example, a port with a lower number.
  • the HDMI 2.0 reception port (11A, 11B, 11C or 11D) corresponding to the above HDMI 2.0 transmission port (10A, 10B, 10C or 10D) receives the 4K video signal.
  • the control unit 40 stores data related to the 4K video signal in the storage unit 60.
  • the video processing unit 50 up-converts the 4K video signal into a size that allows the entire display area of the display unit 70 to be reproduced.
  • FIG. 4 is a diagram showing an example in which the 4K video is displayed on the entire display area of the display unit 70. As shown in FIG. Further, FIG. 4 shows that the HDMI cable related to transmission of the video signal related to the partial video B is disconnected. The control unit 40 causes the display unit 70 to display the 4K video as shown in FIG.
  • FIG. 5 is a diagram showing video reproduction in which a part of the display area is missing.
  • FIG. 6 is a functional block diagram showing a display system 1a according to the present modification.
  • the image signal supply device 2a includes a plurality of video transmission ports 12A and 12B, etc., instead of the HDMI 2.0 transmission ports 10A to 10D included in the image signal supply device 2 shown in FIG.
  • the display device 5a includes a plurality of video reception ports 13A and 13B, etc., instead of the HDMI 2.0 reception ports 11A to 11D included in the display device 5.
  • the cable connecting between the ports is a standard cable conforming to the port.
  • the display unit 70a included in the display device 5a is not limited to the resolution of 7680 ⁇ 4320 for reproducing 8K video.
  • the resolution of the display unit 70a is equal to the resolution of the display area constituted by all the partial video signals of the resolution that can be transmitted from the video transmission port.
  • the storage unit 30 stores partial video data constituting an entire video having the same resolution as the display area of the display unit 70a.
  • the image signal conversion unit 31 refers to each of the partial video data stored in the storage unit 30 and that constitutes the entire video equal to the resolution of the display area of the display unit 70a.
  • Video data of the same content as the entire video equal to the resolution of the display area 70a, and video data of a resolution that can be transmitted from any one of the video transmission port 12A or 12B, etc. are stored in the storage unit 30.
  • the storage unit 30 is video data of the same content as the whole video equal to the resolution of the display area of the display unit 70a from the beginning, and has a resolution that can be transmitted from any one of the video transmission port 12A or 12B. When the video data is held, the data may of course be used for the subsequent processing.
  • the video signal supply unit 22 transmits each partial video stored in the storage unit 30 from the video transmission ports 12A and 12B and the like, and the control unit 40 stores the video data in the storage unit 60.
  • the video processing unit 50 integrates the video data into a video having a resolution equal to the resolution of the display unit 70a.
  • the control unit 40 refers to the data relating to the video stored in the storage unit 60, and causes the display unit 70a to display the video.
  • the image signal supply unit 22 displays the display unit.
  • a video signal having the same content as the video is transmitted from any port (cable) of any of the video transmission ports 12A and 12B etc. which can be appropriately communicated, and transmission of the video signal from other than the above port is performed. Stop it.
  • the port automatically selects, for example, a port with a lower number.
  • the video reception port 13A or 13B or the like corresponding to the above video transmission port 12A or 12B or the like receives the video signal.
  • the control unit 40 stores data related to the video signal in the storage unit 60.
  • the video processing unit 50 up-converts the video signal into a size that can be reproduced over the entire display area of the display unit 70a.
  • the control unit 40 refers to the data stored in the storage unit 60, and causes the display unit 70a to display the above video.
  • the port (cable) through which the image signal supply unit 22 transmits a 4K video signal having the same content as the 8K video stored in the storage unit 30 is a port set by the user in advance. Good.
  • step S103 of the first embodiment the port (cable) to which the image signal supply unit 22 transmits the 4K video signal having the same content as the 8K video stored in the storage unit 30 is also all ports in the connected state. Good.
  • FIG. 7 is a flow chart showing the flow of processing according to this embodiment.
  • S101 the above-described HPD function is used to determine whether the cable status detection unit 21 can appropriately transmit data from the HDMI 2.0 transmission ports 10A to 10D to the corresponding HDMI 2.0 reception ports 11A to 11D. Use the judgment.
  • step S102 If the data can be properly transmitted, the process proceeds to step S102. If the data can not be properly transmitted between at least any of the ports due to disconnection of the cable connecting the ports, the process proceeds to step S103 '. (S102)
  • the image signal supply unit 22 causes the HDMI 2.0 transmission ports 10A to 10D to transmit the 4K image signals (data) that make up the 8K image stored in the storage unit 30, respectively.
  • the HDMI 2.0 reception ports 11A to 11D respectively receive the 4K video signal.
  • the control unit 40 stores the 4K video signal in the storage unit 60.
  • the image processing unit 50 integrates the four 4K images into one 8K image.
  • FIG. 3 is a view showing an example of displaying the 4K video on the display unit 70. As shown in FIG. 3
  • the control unit 40 causes the display unit 70 to display the 8K video as shown in FIG. 3 with reference to the data related to the 8K video stored in the storage unit 60.
  • the cable status detection unit 21 monitors the HDMI 2.0 transmission ports 10A to 10D at predetermined unit time intervals.
  • the image signal conversion unit 31 refers to the 8K video (each 4K video that is a partial video constituting the above) stored in the storage unit 30 and stores the 4K video having the same content as the 8K video on the storage unit 30.
  • the generated 4K video is stored in the storage unit 30.
  • the 8K video signal is converted into a 4K video signal to be displayed over the entire display area of the display unit 70 using only a cable other than the cable which is not in the connected state.
  • the image signal conversion unit 31 when the image signal conversion unit 31 generates an image signal to be displayed in the entire display area by using only a cable other than the cable which is not in the connection state with reference to the image signal regarding each of the plurality of partial areas. It may be expressed.
  • the storage unit 30 initially holds data related to 4K video having the same content as the 8K video, the data may naturally be used for the subsequent processing.
  • the image signal supply unit 22 can not appropriately transmit the 4K image signal having the same content as the 8K image stored in the storage unit 30 and the data as an image signal to be displayed on the entire display area of the display unit 70.
  • a notification for display concerning ports in a state is supplied from any port (cable) of the HDMI 2.0 transmission ports 10A to 10D.
  • the port automatically selects, for example, a port with a lower number.
  • the HDMI 2.0 reception port (11A, 11B, 11C or 11D) corresponding to the HDMI 2.0 transmission port (10A, 10B, 10C or 10D) receives the 4K video signal and the notification for display.
  • the control unit 40 stores data related to the 4K video signal and the notification for display in the storage unit 60.
  • the video processing unit 50 up-converts the 4K video into a size that allows the entire display area of the display unit 70 to be reproduced.
  • FIG. 8 is a view showing an example of displaying the 4K video and the warning of the cable state on the display unit 70. As shown in FIG.
  • the control unit 40 refers to the data relating to the 4K video stored in the storage unit 60, and causes the display unit 70 to display the 4K video as shown in FIG.
  • the control unit 40 also causes the display unit 70 to superimpose the 4K video image for a predetermined period of time on the fact that communication is not properly performed between the ports.
  • step S104 branching is performed depending on whether or not the disconnected cable has been re-connected (or the broken cable has been replaced) in step S103.
  • step S101 When the cable is re-inserted, the process proceeds to step S101, and when the cable is not re-inserted, the process proceeds to step S103 ′.
  • the same effect as that of the first embodiment can be obtained, and the user can easily confirm that the 4K video is displayed on the display screen instead of the 8K video, so that the convenience of the user can be improved. Play a contributing effect.
  • control block in particular, the cable state detection unit 21 and the image signal supply unit 22 of the image signal supply device (2 or 2a) may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like. It may be realized by software.
  • the image signal supply device (2 or 2a) includes a computer that executes instructions of a program that is software that implements each function.
  • the computer includes, for example, at least one processor (control device) and at least one computer readable storage medium storing the program. Then, in the computer, the processor reads the program from the recording medium and executes the program to achieve the object of the present invention.
  • a CPU Central Processing Unit
  • the processor reads the program from the recording medium and executes the program to achieve the object of the present invention.
  • a CPU Central Processing Unit
  • the processor can be used as the processor.
  • a recording medium a tape, a disk, a card, a semiconductor memory, a programmable logic circuit or the like can be used besides “a non-temporary tangible medium”, for example, a ROM (Read Only Memory).
  • a RAM Random Access Memory
  • the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program.
  • any transmission medium communication network, broadcast wave, etc.
  • one aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.
  • the image signal supply device (2 or 2a) configures a display area of the display unit (70 or 70a) using a plurality of cables with respect to the display unit (70 or 70a)
  • a cable state detection unit (21) for supplying an image signal concerning each of a plurality of partial areas, and detecting whether or not each of the plurality of cables is in a connection state;
  • the cable state detection unit 21 detects that at least one of the plurality of cables is not in the connection state, the entire display area is obtained with respect to cables other than the cables in the connection state among the plurality of cables.
  • an image signal supply unit 22 that supplies an image signal to be displayed on the display.
  • the image signal supply device (2 or 2a) according to aspect 2 of the present invention further includes the image signal conversion unit 31 in the above aspect 1, and the cable state detection unit 21 is configured to When it is detected that at least one of the plurality of cables is not in the connected state, the image signal related to each of the plurality of partial areas is referred to, and only the cables other than the cables not in the connected state are used. It may be converted to an image signal for display.
  • the cable state detection unit 21 detects that at least one of the plurality of cables is not connected. In this case, any cable in a connected state may be automatically selected as a cable for supplying an image signal to be displayed in the entire display area.
  • the cable state detection unit 21 detects that at least one of the plurality of cables is not connected.
  • the cable may be selected by the user in advance as a cable for supplying an image signal to be displayed in the entire display area.
  • the image signal supply device (2 or 2a) according to aspect 5 of the present invention may be configured to select all the cables in the continuous state in aspect 1 or 2 described above.
  • the cable state detection unit 21 is at least one of the plurality of cables. If it is detected that the cable is not in the connected state, a notification may be supplied to the effect that the cable is not in the connected state.
  • the image signal supply device (2 or 2a) according to aspect 7 of the present invention may have a configuration in which the cable is a cable according to the HDMI standard in any one of the above aspects 1 to 6.
  • An image signal related to each of a plurality of partial areas supplied by the image signal supply device (2 or 2a) and the plurality of partial areas supplied by the image signal supply device (2 or 2a) according to aspect 8 of the present invention A display system (1 or 1a) comprising the display device (5 or 5a) according to any one of the aspects 1 to 7, and the image signal supply device (2 or 2a) according to any one of the aspects 1 to 7.
  • the image signal related to each of the plurality of partial regions supplied by the image signal supply device (2 or 2a) may be input, and the display device (5 or 5a) constituting the display region may be provided.
  • An image signal supply method is an image signal supply method for supplying an image signal relating to each of a plurality of partial areas constituting a display area using a plurality of cables, comprising: Among the plurality of cables, when it is detected that at least one of the plurality of cables is not in the connection state in the cable state detection step of detecting whether each is in the connection state and the cable state detection step An image signal supply step of supplying an image signal to be displayed over the entire display area to a cable other than the cable which is not in the connected state.
  • a control program according to aspect 10 of the present invention is a control program for causing a computer to function as an image signal supply device (2 or 2a) according to any one of the aspects 1 to 7 above, May be configured to function as the image signal supply device (2 or 2a).
  • the recording medium according to aspect 11 of the present invention may be a computer readable recording medium having the control program according to aspect 10 recorded thereon.
  • the image signal supply device (2 or 2a) may be realized by a computer, and in this case, each unit (software element) which the computer comprises in the image signal supply device (2 or 2a) A control program of an image signal supply device (2 or 2a) which causes the computer to realize the above image signal supply device (2 or 2a) by operating as a computer, and a computer readable recording medium recording the same. It falls in the category.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

La présente invention empêche l'omission dans une vidéo. Un dispositif de fourniture de signal d'image (2 ou 2a) comprend : une unité de détection d'état de câble (21) qui détecte si une pluralité de câbles se trouvent chacun dans un état connecté; et une unité de fourniture de signal d'image (22) qui, lorsque l'unité de détection d'état de câble (21) détecte qu'au moins l'un quelconque de la pluralité de câbles ne se trouve pas dans l'état connecté, fournit aux câbles qui font partie de la pluralité de câbles et qui sont différents des câbles qui ne se trouvent pas dans l'état connecté, un signal d'image en vue d'un affichage sur une région d'affichage entière.
PCT/JP2018/026950 2017-08-31 2018-07-18 Dispositif de fourniture de signal d'image, système d'affichage, procédé de fourniture de signal d'image, programme de commande et support d'enregistrement WO2019044232A1 (fr)

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JP2017-167933 2017-08-31
JP2017167933A JP2019045655A (ja) 2017-08-31 2017-08-31 画像信号供給装置、表示システム、画像信号供給方法、制御プログラム及び記録媒体

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US20110085078A1 (en) * 2003-03-14 2011-04-14 Starz Entertainment Group Llc Manipulating unused portions of a video display
JP2011081188A (ja) * 2009-10-07 2011-04-21 Sanyo Electric Co Ltd 投写型映像表示装置
JP2015225230A (ja) * 2014-05-28 2015-12-14 シャープ株式会社 画像表示装置

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JPH11234636A (ja) * 1998-02-17 1999-08-27 Fujitsu Ltd 画像転送装置、画像送信装置、および画像受信装置
US20110085078A1 (en) * 2003-03-14 2011-04-14 Starz Entertainment Group Llc Manipulating unused portions of a video display
JP2005101865A (ja) * 2003-09-24 2005-04-14 Sony Corp 撮像装置及び映像出力方法
JP2010073054A (ja) * 2008-09-19 2010-04-02 Sony Corp 画像表示装置、コネクタ表示方法、伝送路状態検出装置、伝送路状態検出方法および半導体集積回路
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JP2015225230A (ja) * 2014-05-28 2015-12-14 シャープ株式会社 画像表示装置

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