WO2011086977A1 - 映像伝送装置、映像表示装置、映像表示システム、映像伝送方法及びコンピュータプログラム - Google Patents
映像伝送装置、映像表示装置、映像表示システム、映像伝送方法及びコンピュータプログラム Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/194—Transmission of image signals
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/158—Switching image signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/161—Encoding, multiplexing or demultiplexing different image signal components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/178—Metadata, e.g. disparity information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
- H04N13/106—Processing image signals
- H04N13/172—Processing image signals image signals comprising non-image signal components, e.g. headers or format information
- H04N13/183—On-screen display [OSD] information, e.g. subtitles or menus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
- H04N13/359—Switching between monoscopic and stereoscopic modes
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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]
- H04N21/40—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
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
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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]
- H04N21/40—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
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
Definitions
- the present invention relates to a video transmission device, a video display device, a video display system, a video transmission method, and a computer program.
- a 3D video transmission method is defined, and in addition to the frame packing method, as an informative method, side-by-side (Side By Side; SBS, sometimes referred to as left / right division method) A method such as was also defined.
- SBS Side By Side
- a method such as was also defined.
- an over-under (Over-Under, upper and lower division method, top / bottom; sometimes called Top / Bottom, Above / Below, etc.) method frame sequential (Frame Sequential) FSQ) method.
- the frame packing method is a method for transmitting two images for the left eye and the right eye.
- the side-by-side method is a method of transmitting video with the screen divided into left and right, and a video display device that supports the side-by-side method can create a three-dimensional video from the left and right divided images.
- a video display device without a right image the image for the right eye is displayed on the right side of the screen, and the image for the left eye is displayed on the left side of the screen.
- the over-under method is a method of transmitting video with the screen divided vertically. Similar to the side-by-side method, a video display device that supports the over-under method creates a three-dimensional image from the vertically divided image. However, the same image is displayed symmetrically in a video display device that is not compatible.
- the frame sequential method is a method in which a video stream for the right eye and a video stream for the left eye are sequentially switched in a time division manner and output.
- An image transmitted by such a 3D image transmission method is displayed by a time-division stereoscopic image display system using, for example, so-called shutter glasses (for example, see Patent Documents 1 to 3), so that the viewer can view the stereoscopic image. It can be perceived as a video.
- the frame packing method and the frame sequential method two images for the left eye and the right eye are transmitted. Therefore, the frame packing method and the frame sequential method are transmitted at twice the transfer rate as compared with 2D image transmission with the same resolution.
- the 3D video is transferred at the same transfer rate as the 2D video as a whole because the 3D video has left and right eye images each having a vertical or horizontal resolution of half.
- 2D video can be obtained from video information such as Pixel frequency, Hactive, Hblank, Vactive, Vblank, Vfreq, VIC (Video FormatId, Video FormatId resolution, AVI InfoFrame resolution).
- the video format can be specified from the information such as the frame rate information).
- “InfoFrame for transmitting 3D information” defined in 1.4 information indicating that the 3D video is transmitted, information such as Frame Packing, Side-by-Side (Half), etc. For details, including the HDMI standard Ver.1.4 Chapter 8.2.3, Appendix H), information is also necessary to specify the video format.
- 3D video and 2D video are mixed, such as a television broadcast, for example, the main part of the program is 3D video, but the CM is 2D video.
- the main program 3D video / Side-by-Side
- CM (2D video) 2D video
- 3D video and 2D can be done in a short time.
- the video may be switched.
- a black screen for about 1 to 2 seconds is not preferable because the head portion of the video becomes invisible at the time of switching.
- Side-by-Side (Half) (or Over-Under (sometimes called Top / Bottom, Above / Bellows, etc.)) is a format for transmission at the same resolution and frame rate as 2D video. In this case, whether it is 2D video or 3D video is basically determined by the presence or absence of “InfoFrame for transmitting 3D information”.
- the source device starts sending InfoFrame that transmits 3D information at the timing when the video switches from 2D video to Side-by-Side (Half)
- the repeater device and the sink device can detect the format change by detecting the InfoFrame that transmits the 3D information.
- the repeater device determines that the InfoFrame for transmitting 3D information on the HDMI receiving side has stopped, and then the 3D information on the HDMI transmitting side. Stops sending InfoFrames that transmit. For this reason, not only the sink device but also the repeater device requires a double timeout time. Even if the source device stops sending the InfoFrame that transmits 3D information at the timing when the video is switched from Side-by-Side to 2D, it is actually possible to detect that the InfoFrame that transmits 3D information does not come from the sink device. There is a possibility that the 2D video is subjected to Side-by-Side processing by the sink device and displayed as a broken 3D video. It is highly undesirable to display 2D video as a broken 3D video by Side-by-Side processing, and we want to avoid it as much as possible.
- the display when switching between Side-by-Side video and 2D video, for safety, the display is set to a full-screen single color display like a black screen, or as 2D.
- An image for example, an image for the left eye (the left half of the image) and an image for the right eye (the right half of the image) that can be viewed without any discomfort both when displayed and as Side-by-Side have the same pattern.
- the present invention has been made in view of the above problems, and an object of the present invention is to provide a smooth audition by quickly detecting video switching when switching between 2D video and 3D video. It is an object of the present invention to provide a new and improved video transmission device, video display device, video display system, video transmission method, and computer program that can be performed.
- a control unit for controlling the content of the control signal output from the transmission signal output unit wherein the control unit converts the video signal from 3D video to 2D video.
- the transmission signal is output from the transmission signal output unit without stopping the output of the video signal from the transmission signal output unit, and indicates that the video signal is a three-dimensional video.
- a video transmission apparatus that controls the transmission signal output unit to include information indicating that the video signal output from the output unit is switched to a two-dimensional video.
- the control unit outputs a mute signal for stopping the video output in a device that receives the transmission of the video signal for a predetermined period from the same timing as the switching of the video signal from the 3D video to the 2D video or at the same timing as the switching.
- the transmission signal output unit may be controlled to be included in the control signal.
- the control unit may control the transmission signal output unit to output a video signal for displaying a video of a predetermined color / gradation when the video signal is switched from a 3D video to a 2D video. .
- the control unit stops outputting information that explicitly indicates that the video signal is a 2D video after a predetermined time has elapsed since the video signal was switched from a 3D video to a 2D video.
- the transmission signal output unit may be controlled.
- a video signal for displaying a 2D video or a 3D video, an audio signal for outputting audio, and information about the video signal and the audio signal are included.
- the control unit When the video signal is switched between 2D video and 3D video, the control unit performs video transmission in a device that receives transmission of the video signal immediately before the switching or at the same timing as the switching.
- the transmission signal output unit may be controlled to include a mute signal for stopping the output of the transmission signal in the control signal.
- the control unit is configured to increase a period of the mute signal when the video signal is switched from a 3D video to a 2D video, compared to when the video signal is switched from a 2D video to a 3D video.
- the transmission signal output unit may be controlled.
- the control unit controls the transmission signal output unit to output a video signal for displaying a video of a predetermined color / gradation when the video signal is switched between a 2D video and a 3D video. It may be.
- the control unit When the video signal is switched from 3D video to 2D video, the control unit does not stop the output of the video signal from the transmission signal output unit, and is output from the transmission signal output unit,
- the transmission signal output unit is controlled so that information indicating that the video signal is a 3D video includes information indicating that the video signal output from the transmission signal output unit is switched to a 2D video. Also good.
- a video signal for displaying a 2D video or a 3D video, an audio signal for outputting audio, and information about the video signal and the audio signal are included.
- a transmission signal input unit that receives the control signal to be transmitted, a video display unit that displays video based on the video signal, and a video display control unit that controls the operation of the video display unit, wherein the transmission signal input unit includes: When the switching of the video signal from 2D video to 3D video or from 3D video to 2D video is detected, the video display controller displays a black screen or a predetermined display There is provided a video display device that executes control for making an image of color and gradation.
- a video transmission device that transmits video, and a video display device that displays video by receiving video transmission from the video transmission device
- the video transmission device includes a transmission signal output unit for outputting a video signal for displaying a 2D video or a 3D video, an audio signal for outputting sound, and a control signal including information on the video signal and the audio signal;
- a control unit that controls the content of the control signal output from the transmission signal output unit, and the control unit outputs the transmission signal output unit when the video signal is switched from 3D video to 2D video.
- the transmission signal output unit is controlled to include information explicitly indicating that the video signal output from the video signal is a two-dimensional video in the control signal, and the video display device Alternatively, a video signal for displaying a 3D video, an audio signal for outputting audio, and a transmission signal input unit for receiving a control signal including information related to the video signal and the audio signal, and a video display for displaying a video based on the video signal And a video display control unit that controls the operation of the video display unit, wherein the transmission signal input unit converts the video signal from 2D video to 3D video, or from 3D video to 2D video.
- a video display system that executes control for making the video display control unit display a black screen or an image of a predetermined color / gradation on the video display unit.
- a video signal for displaying a 2D video or a 3D video, an audio signal for outputting audio, and information about the video signal and the audio signal are included.
- the control signal is executed so that the video signal output in the transmission signal output step does not stop and the information that explicitly indicates that the video signal is a two-dimensional video is included in the control signal.
- the present invention relates to a video signal for displaying a 2D video or a 3D video on a computer, an audio signal for outputting sound, and the video signal and the audio signal.
- a transmission signal output step for outputting a control signal including information; and a control step for controlling the content of the control signal output in the transmission signal output step.
- the control step includes: When switching from the original video to the 2D video, without explicitly stopping the output of the video signal, information that explicitly indicates that the video signal output in the transmission signal output step is a 2D video in the control signal.
- a computer program is provided that performs the inclusion control.
- a new and improved video transmission device capable of quickly detecting video switching and providing a smooth audition
- a video display device, a video display system, a video transmission method, and a computer program can be provided.
- FIG. 11 is an explanatory diagram showing a configuration of a television receiver 300 according to an embodiment of the present invention.
- One Embodiment of the Present Invention> [1-1.3 HDMI standard for 3D video] [1-2. Configuration of video display system] [1-3. Configuration of video player] [1-4. Configuration of AV amplifier] [1-5. Configuration of television receiver] [1-6. Transmission of video data] [Switching from 1-6-1.2D video to Side-by-Side video] [1-6-2. Switching from Side-by-Side video to 2D video] ⁇ 2. Summary>
- HDMI standard for 3D video [1-1.3 HDMI standard for 3D video]
- Side-by-Side (Half) compresses the horizontal width of 2D video (2D Video Format) as shown in FIG. 1 in half, and the image for left eye (L) and the image for right eye (R) Are arranged side by side (Side-by-Side (Half) Video Format) as shown in FIG.
- Side-by-Side arranges the image for the right eye and the image for the left eye side by side with the horizontal width being halved, so that the timing of the Video signal transmitted to HDMI (Pixel frequency, Hblank, Hactive, (Vblank, Vactive, Vfreq) is the same for 2D video and Side-by-Side (Half) video. That is, 2D video and Side-by-Side (Half) video cannot be distinguished from the timing of the Video signal.
- HDMI Ver. Although not defined in the 1.4 standard, a format that can be transmitted at the same video signal timing as 2D video, such as Side-by-Side (Half), has Top and bottom (Over-) as shown in FIG. There are also methods such as Under, Above-Below, etc.), Line-by-Line, Checkerboard, and the like. When these formats are defined in the HDMI standard in the future, Side-by-Side (Half) is used. It will be the same.
- FIG. 4 is an explanatory diagram showing a configuration example of the video display system 10 according to the embodiment of the present invention.
- the video display system 10 illustrated in FIG. 4 includes a video player 100 and a television receiver 300.
- the video player 100 is a source device
- the television receiver 300 is a sink device.
- the video display system 10 shown in FIG. 4 has a configuration in which a video player 100 as a source device and a television receiver 300 as a sink device are directly connected by an HDMI cable 501.
- the HDMI signal transmitted from the HDMI transmission unit (HDMI Tx) 111 of the video player 100 as the source device is directly transmitted to the HDMI reception unit (HDMI Rx) 302 of the television receiver 300 as the sink device.
- a Video signal, an AVI InfoFrame, and an InfoFrame for transmitting 3D information are transmitted to the television receiver 300.
- FIG. 5 is an explanatory diagram showing another configuration example of the video display system 10 according to the embodiment of the present invention.
- the video display system 10 shown in FIG. 5 includes a video player 100, an AV amplifier 200, and a television receiver 300.
- the video player 100 is a source device
- the AV amplifier 200 is a repeater device
- the television receiver 300 is a sink device. It is.
- the video display system 10 shown in FIG. 5 is connected to a video player 100 as a source device and an AV amplifier 200 as a repeater device via an HDMI cable 502, and is an AV amplifier 200 as a repeater device and a sink device.
- the television receiver 300 is connected with an HDMI cable 503.
- the HDMI signal transmitted from the HDMI transmitting unit (HDMI Tx) 111 of the video player 100 as the source device is transmitted to the HDMI receiving unit (HDMI Rx) 203 of the AV amplifier 200 as the repeater device.
- the Video signal is transferred from the HDMI receiving unit 203 to the HDMI transmitting unit (HDMI Tx) 206 inside the AV amplifier 200, and from the HDMI transmitting unit 206 of the AV amplifier 200, the HDMI receiving unit of the television receiver 300 that is a sink device. (HDMI Rx) 302 is transmitted.
- the AVI InfoFrame, InfoFrame such as InfoFrame that transmits 3D information the new data is stored in the register of the HDMI transmission unit 206 only when there is a change in the data received by the HDMI reception unit 203 inside the AV amplifier 200 that is a repeater device. It is set and transmitted from the HDMI transmission unit (HDMI Tx) 206 to the HDMI reception unit (HDMI Rx) 302 of the television receiver 300 which is a sink device.
- FIG. 6 is an explanatory diagram showing the configuration of the video player 100 according to the embodiment of the present invention.
- the configuration of the video player 100 according to the embodiment of the present invention will be described with reference to FIG.
- a video player 100 includes an HDMI terminal 101, a BD / DVD drive 102, a drive I / F 103, a decoding unit 104, a demultiplexer 105, and a video.
- a decoder 106, a video signal processing circuit 107, an audio decoder 109, an audio signal processing circuit 110, an HDMI transmission unit 111, a CPU 121, a flash ROM 122, a DRAM 123, and a remote controller reception unit 124 are configured. Is done.
- the HDMI terminal 101 is a terminal for receiving an HDMI signal input from the HDMI cable and outputting the HDMI signal to the HDMI cable.
- the BD / DVD drive 102 is a drive for reading data from a DVD or other optical disk. Data read by the BD / DVD drive 102 is sent to the decoding unit 104.
- the drive I / F 103 is an interface for controlling the BD / DVD drive 102.
- the decryption unit 104 decrypts encryption such as AACS (Advanced Access Content System) and CSS (Content Scramble System) applied to the data read by the BD / DVD drive 102, and converts the data into plain text. .
- the data converted into plain text by the decryption unit 104 is sent to the demultiplexer 105.
- the demultiplexer 105 uses data (multiplexed stream) read from the optical disc by the BD / DVD drive 102, video (MPEG, AVC, VC-1, MVC, etc.), audio (Linear PCM, Dolby Digital, DTS, etc.) ), And other elementary streams such as subtitles are taken out.
- data multiplexed stream
- video MPEG, AVC, VC-1, MVC, etc.
- audio Linear PCM, Dolby Digital, DTS, etc.
- other elementary streams such as subtitles are taken out.
- the video decoder 106 decodes video elementary streams such as MPEG, AVC, VC-1, and MVC taken out by the demultiplexer 105 to obtain image data of each frame of the video.
- the image data decoded by the video decoder 106 is sent to the video signal processing circuit 107.
- the video signal processing circuit 107 performs various video signal processing such as image quality correction, image size / resolution conversion, primary video and secondary video synthesis, color space conversion, and the like.
- the video signal processing circuit 107 also superimposes the OSD on the video.
- the video signal processing circuit 107 includes a 3D video generation unit 108.
- the 3D video generation unit 108 converts the image data obtained from the video decoder according to the 3D output format.
- the video data that has been subjected to various types of video signal processing in the video signal processing circuit 107 is sent to the HDMI transmission unit 111.
- the audio decoder 109 decodes an audio elementary stream (Linear PCM, Dolby Digital, DTS, etc.) and converts it into Linear PCM. In the case of Linear PCM, the audio decoder 109 also executes processing for rearranging audio channels.
- the audio signal processing circuit 110 performs audio signal processing such as audio mixing, downmix, sampling rate conversion, etc. with Primary Audio, Secondary Audio, and Interactive Audio such as button sound.
- the audio data that has been subjected to various types of audio signal processing by the audio signal processing circuit 110 is sent to the HDMI transmission unit 111.
- the HDMI transmission unit 111 generates a signal to be transmitted to the HDMI cable.
- the HDMI transmission unit 111 receives the video data output from the video signal processing circuit 107 and the audio data output from the audio signal processing circuit 110.
- the CPU 121 (or I 2 C) performs processing such as video format output from the HDMI transmission unit 111, contents / timing of output packets such as InfoFrame, and resolution switching.
- the CPU 121 (or I 2 C) also controls the contents of the InfoFrame packet for transmitting 3D information for Side-by-Side and the timing for starting and ending the transmission of the InfoFrame for transmitting 3D information.
- the CPU 121 controls the operation of each part of the video player 100.
- the flash ROM 122 stores control software and data.
- the DRAM 123 constitutes a work area of the CPU 121 and the like.
- the CPU 121 develops software and data read from the flash ROM 122 on the DRAM 123 and activates the software to control each unit of the video player 100.
- the CPU 121, flash ROM 122, and DRAM 123 are connected to the internal bus 120.
- the remote controller receiving unit 124 receives, for example, an infrared remote control signal transmitted from the remote controller transmitter 810 and supplies it to the CPU 121. The user can operate the video player 100 by operating the remote controller transmitter 810.
- the configuration of the video player 100 according to the embodiment of the present invention has been described above with reference to FIG. Next, the configuration of the AV amplifier 200 according to one embodiment of the present invention will be described.
- FIG. 7 is an explanatory diagram showing the configuration of the AV amplifier 200 according to the embodiment of the present invention.
- the configuration of the AV amplifier 200 according to the embodiment of the present invention will be described with reference to FIG.
- the AV amplifier 200 includes HDMI terminals 201 and 202, an HDMI receiving unit 203, a video signal processing circuit 204, a graphic generation circuit 205, and an HDMI transmitting unit. 206, an audio decoder 207, an audio signal processing circuit 208, an audio amplification circuit 209, a speaker 210, a CPU 221, a flash ROM 222, a DRAM 223, and a remote controller reception unit 224.
- HDMI terminals 201 and 202 are terminals for receiving an HDMI signal input from an HDMI cable and outputting an HDMI signal to the HDMI cable.
- the HDMI receiving unit 203 receives an HDMI signal and separates packets of signals such as video, audio, and InfoFrame.
- the AV amplifier 200 is connected to the video player 100 via an HDMI cable (not shown), and the HDMI receiving unit 203 receives an HDMI signal transmitted from the video player 100 and receives video, audio, InfoFrame, and the like. Each signal packet is separated.
- the video signal processing circuit 204 executes various video signal processing such as image quality improvement and resolution conversion.
- the video signal processing circuit 204 also performs processing such as conversion between various formats of 3D video as necessary.
- the graphic generation circuit 205 superimposes the operation menu of the AV amplifier 200 and various information displays on the input video signal and outputs the superimposed video signal to the HDMI transmission unit 206.
- the HDMI transmission unit 206 generates a signal to be transmitted to the HDMI cable connected to the HDMI terminal 202.
- the HDMI transmission unit 206 receives the video data output from the video signal processing circuit 204 and the audio data output from the audio signal processing circuit 208.
- the CPU 221 (or I 2 C) performs processing such as video format output from the AV amplifier 200, content / timing of output packets such as InfoFrame, and resolution switching.
- the CPU 221 also controls the contents of the InfoFrame packet that transmits 3D information for Side-by-Side and the timing for starting and ending transmission.
- the audio decoder 207 decodes an audio elementary stream (Linear PCM, Dolby Digital, DTS, etc.) and converts it into Linear PCM.
- the audio signal processing circuit 208 performs audio signal processing such as sampling rate conversion, sound field correction, and various sound quality improvement processes.
- the audio data that has been subjected to various audio signal processing by the audio signal processing circuit 208 is sent to the audio amplification circuit 209.
- the audio amplification circuit 209 performs D / A conversion to output audio to the speaker 210, and amplifies an analog signal according to a set volume.
- the speaker 210 outputs sound based on the analog signal that has been D / A converted or amplified by the sound amplifier circuit 209.
- the CPU 221 controls the operation of each part of the AV amplifier 200.
- the flash ROM 222 stores control software and data.
- the DRAM 223 constitutes a work area of the CPU 221 and the like.
- the CPU 221 develops software and data read from the flash ROM 222 on the DRAM 223 and activates the software to control each unit of the AV amplifier 200.
- the CPU 221, flash ROM 222, and DRAM 223 are connected to the internal bus 220.
- the remote controller receiving unit 224 receives, for example, an infrared remote control signal transmitted from the remote controller transmitter 820 and supplies it to the CPU 221.
- the user can operate the AV amplifier 200 by operating the remote controller transmitter 820.
- the InfoFrame sent from the source device (video player 100) is partly checked by the AV amplifier 200, changed, and transferred to the sink device (television receiver 300). Further, the AV amplifier 200 according to the present embodiment has an operation mode called an audio through mode.
- the audio through mode is a mode in which audio data is not passed through the AV amplifier 200 but through the audio data to the sink device (television receiver 300).
- the audio data received by the HDMI receiving unit 203 and a packet related to audio such as Audio InfoFrame are transferred as they are to the sink device (television receiver 300).
- the configuration of the AV amplifier 200 according to the embodiment of the present invention has been described above with reference to FIG. Next, the operation of the television receiver 300 according to the embodiment of the present invention will be described.
- FIG. 8 is an explanatory diagram showing the configuration of the television receiver 300 according to the embodiment of the present invention.
- the configuration of the television receiver 300 according to the embodiment of the present invention will be described with reference to FIG.
- a television receiver 300 includes an HDMI terminal 301, an HDMI receiving unit 302, an antenna input terminal 303, a digital tuner 311, a demultiplexer 312, Video decoder 313, video signal processing circuit 314, graphic generation circuit 315, panel drive circuit 316, backlight drive circuit 317, display panel 318, audio decoder 319, audio signal processing circuit 320, and audio amplification
- the circuit 321, the speaker 322, the glasses driving signal transmitter 323, the CPU 331, the flash ROM 332, the DRAM 333, and the remote controller receiver 334 are configured.
- the HDMI terminal 301 is a terminal for receiving an HDMI signal input from the HDMI cable and outputting the HDMI signal to the HDMI cable.
- the HDMI receiving unit 302 receives an HDMI signal and separates packets of signals such as video, audio, and InfoFrame.
- the HDMI receiving unit 302 drives a predetermined event when a change from 3D video (Side-by-Side) to 2D video or vice versa occurs in the InfoFrame for transmitting 3D information.
- the video output may be stopped by sending it to the circuit 316 or the backlight drive circuit 317.
- the antenna input terminal 303 is a terminal for inputting a television broadcast signal received by a receiving antenna (not shown).
- the digital tuner 311 processes the television broadcast signal input to the antenna terminal 310 and outputs a predetermined transport stream corresponding to the user's selected channel.
- the demultiplexer 312 extracts a partial TS (Transport Stream) (a TS packet of video data and a TS packet of audio data) corresponding to the user's selected channel from the transport stream obtained by the digital tuner 311. Further, the demultiplexer 312 extracts PSI / SI (Program Specific Information / Service Information) from the transport stream obtained by the digital tuner 311, and outputs the PSI / SI (Program Specific Information / Service Information) to the CPU 331.
- PSI / SI Program Specific Information / Service Information
- a plurality of channels are multiplexed in the transport stream obtained by the digital tuner 311.
- the process of extracting the partial TS of an arbitrary channel from the transport stream by the demultiplexer 312 can be performed by obtaining the packet ID (PID) information of the arbitrary channel from the PSI / SI (PAT / PMT). .
- PID packet ID
- the video decoder 313 performs a decoding process on a video PES (Packetized Elementary Stream) packet configured by a TS packet of video data obtained by the demultiplexer 312 to obtain video data of each frame.
- the video signal processing circuit 314 performs various video signal processing such as image quality improvement, resolution conversion, and 1 / P conversion on the video data obtained by the video decoder 313.
- the graphic generation circuit 315 superimposes the menu and information display of the television receiver 300 on the video data output from the video signal processing circuit 314.
- the graphic generation circuit 315 generates image data by processing based on an application stored in advance in the flash ROM 332 and superimposes it on the video data output from the video signal processing circuit 314.
- the panel drive circuit 316 generates a drive signal for driving the display panel 318 based on the video data output from the graphic generation circuit 315. Since the video data output from the graphic generation circuit 315 also has video display timing information on the display panel 318, the panel drive circuit 316 sends timing information to the backlight drive circuit 317 and the glasses drive signal transmission unit 323. hand over.
- the backlight drive circuit 317 generates a drive signal for driving the backlight of the display panel 318 based on the timing information passed from the panel drive circuit 316.
- the backlight of the display panel 318 is an LED (Light Emitting Diode) backlight system
- the timing of the backlight blinking is controlled.
- the backlight driving circuit 317 may turn on the backlight with different timing and luminance for each region of the display panel 318.
- the display panel 318 includes, for example, an LCD (Liquid Crystal Display), an organic EL (Electro-Luminescence), a PDP (Plasma Display Panel), and the like.
- LCD Liquid Crystal Display
- organic EL Electro-Luminescence
- PDP Plasma Display Panel
- the audio decoder 319 decodes an audio elementary stream (Linear PCM, AAC, Dolby Digital, etc.) and converts it into Linear PCM.
- the audio signal processing circuit 320 performs audio signal processing such as audio mixing of video audio and sound effects such as operation sounds, downmix, sampling rate conversion, sound field correction, and various sound quality improvement processes.
- the audio data that has been subjected to various types of audio signal processing by the audio signal processing circuit 320 is sent to the audio amplification circuit 321.
- the audio amplification circuit 321 performs D / A conversion to output audio to the speaker 322, and amplifies an analog signal according to a set volume.
- the speaker 322 outputs sound based on the analog signal that is D / A converted or amplified by the sound amplifier circuit 321.
- the glasses driving signal transmitter 323 transmits a timing signal for driving the active shutter glasses 840.
- the active shutter glasses 840 receives a signal transmitted from the glasses driving signal transmission unit 323 and opens / closes shutters (for example, liquid crystal shutters) of the left and right lenses of the glasses in accordance with the timing of the signal.
- shutters for example, liquid crystal shutters
- the CPU 331 controls the operation of each part of the television receiver 300.
- the flash ROM 332 stores control software and data.
- the DRAM 333 constitutes a work area for the CPU 331 and the like.
- the CPU 331 develops software and data read from the flash ROM 332 on the DRAM 333 and activates the software to control each part of the television receiver 300.
- the CPU 331, flash ROM 332, and DRAM 333 are connected to the internal bus 330.
- the CPU 331, the flash ROM 332, and the DRAM 333 may be a one-chip microcomputer (one-chip microcomputer).
- the remote controller receiving unit 334 receives, for example, an infrared remote control signal transmitted from the remote controller transmitter 830 and supplies it to the CPU 331. The user can operate the television receiver 300 by operating the remote controller transmitter 830.
- a television broadcast signal input to the antenna input terminal 303 is supplied to the digital tuner 311.
- a television broadcast signal is processed to obtain a transport stream corresponding to the user's selected channel.
- This transport stream is supplied to the demultiplexer 312.
- the demultiplexer 312 extracts partial TS (video data TS packet, audio data TS packet) corresponding to the user-selected channel from the transport stream.
- This partial TS is sent to the video decoder 313 and the audio decoder 319.
- the video PES packet configured by the TS packet of the video data obtained by the demultiplexer 312 is decoded, and video data of each frame is obtained.
- This video data is subjected to various video signal processing such as image quality improvement, resolution conversion, and 1 / P conversion in the video signal processing circuit 314, and is displayed on the menu and information display of the television receiver 300 generated by the graphic generation circuit 315.
- the data is superimposed and output to the panel drive circuit 316.
- the display panel 318 displays an image corresponding to the user's selected channel.
- the audio data elementary stream (Linear PCM, AAC, Dolby Digital, etc.) obtained by the demultiplexer 312 is decoded and converted to Linear PCM.
- the audio data is subjected to necessary processing such as D / A conversion by the audio signal processing circuit 320, further amplified by the audio amplification circuit 321, and then supplied to the speaker 322. Therefore, audio corresponding to the user's selected channel is output from the speaker 322.
- the HDMI receiving unit 302 can obtain video and audio data input to the HDMI terminal 301 via the HDMI cable.
- the video data is supplied to the video signal processing circuit 314.
- the audio data is supplied to the audio signal processing circuit 320. Thereafter, the operation is the same as that when receiving the television broadcast signal described above, an image is displayed on the display panel 318, and audio is output from the speaker 322.
- the configuration of the television receiver 300 according to the embodiment of the present invention has been described above with reference to FIG. Next, video data transmitted by the video display system according to the embodiment of the present invention will be described.
- FIG. 9 is an explanatory diagram showing a conventional video data transmission sequence when switching from 2D video to Side-by-Side video.
- Video indicates a video image signal sequence
- GCP indicates a GCP (General Control Packet) data sequence
- AVI IF indicates a sequence of AVI (Auxiliary Video Information) InfoFrame
- InfoFrame for transmitting 3D information indicates a sequence of InfoFrame data for transmitting 3D information.
- a switching sequence from the 2D video shown in FIG. 9 to the Side-by-Side video will be described.
- a source device that outputs a video source sets AVMUTE in GCP and sends it out.
- the source device sets Set_AVMUTE to 1 and Clear_AVMUTE to 0 in the GCP General Control Subpacket shown in FIG. In the section indicated by “mute” of GCP in FIG. 9, this packet is output from the source device.
- the output of the 2D video signal (Video) and various packets (GCP and AVI InfoFrame) is stopped, and after a predetermined time has elapsed, the video signal and various packets (GCP, AVI) of Side-by-Side video
- the output of InfoFrame and InfoFrame that transmits 3D information is started.
- HDCP authentication is performed.
- AVMUTE is canceled by GCP in the source device that outputs the video source.
- the source device sets Clear_AVMUTE to 1 and Set_AVMUTE to 0. This packet is output from the source device in the section indicated by “unmute” of the GCP in FIG.
- switching time is shortened by switching from 2D video to Side-by-Side 3D video without stopping output of the video signal from the source device and without performing HDCP authentication.
- FIG. 11 is an explanatory diagram showing transmission of video data in the present embodiment when switching from 2D video to Side-by-Side video.
- Side-by-Side from 2D video without stopping the output of the video signal from the source device and performing HDCP authentication as in the sequence shown in FIG.
- the switching time is shortened.
- FIG. 12 is a flowchart illustrating a switching sequence from 2D video to Side-by-Side video in the present embodiment. A switching sequence from 2D video to Side-by-Side video in this embodiment will be described with reference to FIGS. 11 and 12.
- the source device (video player 100) that outputs the video source sets AVMUTE in the GCP and sends it from the HDMI transmission unit 111 (step S101). Specifically, the source device (video player 100) sets Set_AVMUTE to 1 and Clear_AVMUTE to 0 in the GCP General Control Subpacket shown in FIG. In the section indicated by “mute” of GCP in FIG. 11, this packet is output from the source device.
- step S101 When AVMUTE is set in GCP in step S101, the video output from the source device (video player 100) is switched from 2D video to 3D Side-by-Side (3D SBS) video (step S102). Note that the setting of AVMUTE to GCP in step S101 and the switching from 2D video to Side-by-Side video may be at the same timing (same frame).
- the source device receives Side-by-Side from the HDMI transmission unit 111.
- Output of InfoFrame that transmits 3D information of video is started (step S103).
- the content of the “3D SBS” data in the InfoFrame for transmitting 3D information is “3D” as the video format type in the “InfoFrame for transmitting 3D information” packet data shown in FIG. “Side-by-Side (Half)” is set as the type of the item.
- a wait is performed for a predetermined period in order to wait for the video processing mode to switch from 2D video to Side-by-Side video (step S104). ).
- the source device (video player 100) that outputs the video source cancels AVMUTE by GCP and sends it from the HDMI transmission unit 111 (step S105). Specifically, in the GCP General Control Subpacket shown in FIG. 10, the source device (video player 100) sets Clear_AVMUTE to 1 and Set_AVMUTE to 0. This packet is output from the source device in the section indicated by “unmute” of GCP in FIG.
- the sink device (television receiver 300) erroneously performs Side-by-Side processing on 2D video, which is temporarily. May appear distorted.
- the video output from the source device (video player 100) in the section where AVMUTE is set by GCP When the signal is switched from 2D video to black (or an image of a predetermined color / gradation) and AVMUTE is canceled by GCP, the video signal output from the source device (video player 100) is converted from black to Side-by- Switch to Side video. This is because the source device (video player 100) does not know how accurately the sink device (television receiver 300) side reacts when switching from 2D video to Side-by-Side video.
- the black image (or the full-screen single-color image that can be viewed in either 2D or Side-by-Side mode) can be output while switching the video. This is because it is desirable. By switching the video data and packets in this way, it is possible to switch the video from 2D video to Side-by-Side video more safely than the sequence shown in FIG.
- FIG. 13 is an explanatory diagram showing another example of transmission of video data in the present embodiment when switching from 2D video to Side-by-Side video.
- Another example of video data transmission in this embodiment as shown in FIG. 13, without stopping the output of the video signal from the source device and without performing HDCP authentication, Side-by- The switching time is shortened by switching to Side 3D video.
- the video is switched from 2D video to Side-by-Side video, the video is switched from 2D video to Side-by-Side video more safely than the sequence shown in FIG. Can be switched.
- FIG. 14 is a flowchart illustrating a switching sequence from 2D video to Side-by-Side video in the present embodiment. A switching sequence from 2D video to Side-by-Side video in this embodiment will be described with reference to FIGS. 13 and 14.
- a source device (video player 100) that outputs a video source sets AVMUTE to GCP and sends it from the HDMI transmission unit 111 (step S111). Specifically, the source device (video player 100) sets Set_AVMUTE to 1 and Clear_AVMUTE to 0 in the GCP General Control Subpacket shown in FIG. In the section indicated by “mute” of GCP in FIG. 13, this packet is output from the source device.
- step S111 When AVMUTE is set in GCP in step S111, the video output from the source device (video player 100) is switched from 2D video to black (step S112). It should be noted that the setting of AVMUTE to GCP and the switching from 2D video to black image in step S111 may be at the same timing (same frame) or may precede AVMUTE setting to GCP.
- the source device receives 3D information of Side-by-Side video from the HDMI transmission unit 111.
- the output of the InfoFrame that transmits the message is started (step S113).
- the content of the “3D SBS” data in the InfoFrame for transmitting 3D information is “3D” as the video format type in the “InfoFrame for transmitting 3D information” packet data shown in FIG. “Side-by-Side (Half)” is set as the type of the item.
- a wait is performed for a predetermined period in order to wait for the video processing mode to switch from 2D video to Side-by-Side video (step S114). ).
- the sink device (television receiver 300) detects that the sending of InfoFrame for transmitting 3D information from the source device has started, and the inside of the sink device (television receiver 300) receives Side-by-Side video. Are switched to a mode for processing (Side-by-Side mode) and a mode for displaying 3D video (3D display mode). Specifically, the HDMI receiving unit 302 switches the video signal processing circuit 314 and the graphic generation circuit 315 to the Side-by-Side mode, and switches the panel drive circuit 316 to the 3D display mode. Further, in the case of an active shutter glasses-type 3D television receiver, such as the television receiver 300 according to the present embodiment, the HDMI receiving unit 302 controls opening and closing of the shutter with respect to the glasses driving signal transmitting unit 323. The transmission of the 3D signal to be started is started.
- the sink device When the sink device (television receiver 300) receives the InfoFrame that transmits 3D information when switching from 2D video to Side-by-Side video, the sink device (the television receiver 300) immediately displays a black screen (or a predetermined color / floor). Tones).
- a black screen or a predetermined color / floor. Tones.
- the screen display is changed to a black screen, so that the 2D video can be changed to Side-by-Side video within a few frames of data stored in the television receiver. If switching is included, displaying a black image across the switching can prevent a broken image from being displayed.
- the HDMI receiving unit 302 As a method of displaying a black image on the display panel 318 of the television receiver 300, for example, when the InfoFrame that transmits 3D information of Side-by-Side (Half) is detected by the HDMI receiving unit 302, the HDMI receiving unit 302 When an event is sent to the panel drive circuit and the output to the display panel 318 is switched to black image data, or when the television receiver 300 is an LED backlight system, the HDMI receiving unit 302 uses Side-by-Side (When InfoFrame transmitting 3D information of Half) is detected, there is a method of sending an event to the backlight drive circuit 317 to turn off the backlight.
- Side-by-Side When InfoFrame transmitting 3D information of Half) is detected, there is a method of sending an event to the backlight drive circuit 317 to turn off the backlight.
- a repeater device such as the AV amplifier 200 is sandwiched between a source device (video player 100) and a sink device (television receiver 300), sending an InfoFrame in which the repeater device transmits 3D information from the source device
- the InfoFrame data for transmitting the received 3D information is copied from the register of the HDMI receiving unit 203 to the register of the HDMI transmitting unit 206 in the repeater device, and the 3D information is transferred from the HDMI transmitting unit 206. Start sending InfoFrame to be transmitted.
- the data copy process inside the repeater device takes more than one frame, and the transfer of InfoFrame that transmits 3D information may be delayed than the transfer of video.
- the sink device receives the HDMI signal transferred by the repeater device, but it is necessary to consider the influence of delay in the repeater device. If the transfer of InfoFrame for transmitting 3D information indicating that the video is Side-by-Side (Half) is delayed rather than the transfer of the video signal, the video is switched to Side-by-Side (Half). There may be a time that the display mode of the television receiver 300 remains 2D video. Therefore, in the television receiver 300, it is desirable to wait for a predetermined period in order to wait for the video processing mode to switch from 2D video to Side-by-Side video.
- the source device (video player 100) that outputs the video source cancels AVMUTE by GCP and transmits it from the HDMI transmission unit 111 (step S115).
- the source device video player 100
- the source device that outputs the video source cancels AVMUTE by GCP and transmits it from the HDMI transmission unit 111 (step S115).
- 1 is set to Clear_AVMUTE and 0 is set to Set_AVMUTE. This packet is output from the source device in the section indicated by “unmute” of GCP in FIG.
- step S115 when AVMUTE is canceled by GCP, the video output from the source device (video player 100) is switched from a black screen to a Side-by-Side video (step S116).
- FIG. 16 is an explanatory diagram showing a conventional video data transmission sequence when switching from Side-by-Side video to 2D video.
- the source device that outputs the video source sets AVMUTE in GCP. Specifically, the source device sets Set_AVMUTE to 1 and Clear_AVMUTE to 0 in the GCP General Control Subpacket shown in FIG. In the section indicated by “mute” of GCP in FIG. 16, this packet is output from the source device.
- the output of the video signal (Video) of Side-by-Side video and various packets (GCP, AVI InfoFrame and InfoFrame transmitting 3D information) is stopped, and after a predetermined time has passed, the video signal of 2D video And output of various packets (GCP and AVI InfoFrame).
- HDCP authentication is performed.
- AVMUTE is canceled by GCP in the source device that outputs the video source.
- the source device sets Clear_AVMUTE to 1 and Set_AVMUTE to 0. This packet is output from the source device in the section indicated by “unmute” of GCP in FIG.
- the Side-by-Side 3D video is switched to the 2D video without stopping the output of the video signal from the source device and without performing the HDCP authentication.
- the switching time from 3D video to 2D video is shortened.
- FIG. 17 is an explanatory diagram showing transmission of video data in the present embodiment when switching from Side-by-Side video to 2D video. As shown in FIG. 17, transmission of video data in this embodiment is performed from Side-by-Side video to 2D video without stopping output of a video signal from the source device and without performing HDCP authentication. Switching time is shortened by switching.
- FIG. 18 is a flowchart for explaining a switching sequence from Side-by-Side video to 2D video in the present embodiment. A switching sequence from Side-by-Side video to 2D video in this embodiment will be described with reference to FIGS. 17 and 18.
- the source device (video player 100) that outputs the video source sets AVMUTE in the GCP and transmits it from the HDMI transmission unit 111 (step S121). Specifically, the source device (video player 100) sets Set_AVMUTE to 1 and Clear_AVMUTE to 0 in the GCP General Control Subpacket shown in FIG. In the section indicated by “mute” of GCP in FIG. 17, this packet is output from the source device.
- step S121 When AVMUTE is set in GCP in step S121, the video output from the source device (video player 100) is switched from Side-by-Side video to 2D video (Step S122). Then, the source device (video player 100) stops outputting the InfoFrame that transmits 3D information of Side-by-Side video (step S123).
- the setting of AVMUTE to GCP in step S121, the switching from 2D video of the video in step S122 to Side-by-Side video, and the stop of the output of InfoFrame transmitting 3D information in step S123 are the same timing (same Frame).
- the video processing mode is set in the television receiver 300 that displays the video transmitted from the video player 100.
- a predetermined period of time is waited (step S124). The period in which this wait is inserted may be longer than when the video is switched from 2D video to Side-by-Side video.
- the sink device (television receiver 300) stops the output of InfoFrame that transmits 3D information by lengthening the wait period compared to the case where the video is switched from 2D video to Side-by-Side video.
- the sink device In consideration of a timeout time for detection and a delay due to the repeater device (AV amplifier 200) being sandwiched between the source device (video player 100) and the sink device (television receiver 300), the sink device ( Appropriate video can be displayed on the television receiver 300).
- the source device (video player 100) that outputs the video source cancels AVMUTE by GCP and transmits it from the HDMI transmission unit 111 (step S125). Specifically, in the GCP General Control Subpacket shown in FIG. 10, the source device (video player 100) sets Clear_AVMUTE to 1 and Set_AVMUTE to 0. This packet is output from the source device in the section indicated by “unmute” of GCP in FIG.
- the content of the packet output from the source device is controlled, so that the sink device ( The television receiver 300) can quickly switch the video.
- the sink device (television receiver 300) erroneously processes the Side-by-Side video as 2D video, and temporarily However, there is a possibility that the image is displayed distorted.
- the video output from the source device (video player 100) in the section where AVMUTE is set by GCP When the signal is switched from Side-by-Side video to black image and AVMUTE is canceled by GCP, the video signal output from the source device (video player 100) is switched from black image to 2D video. This is because the source device (video player 100) does not know how accurately the sink device (television receiver 300) side reacts when switching from Side-by-Side video to 2D video. This is because it is desirable to output a black image at the timing of switching video. By switching the video data and the packets in this way, the video can be switched from Side-by-Side video to 2D video more safely than the sequence shown in FIG.
- FIG. 19 is an explanatory diagram showing another example of transmission of video data in the present embodiment when switching from Side-by-Side video to 2D video.
- Another example of transmission of video data in the present embodiment is that Side-by-Side video without stopping the output of the video signal from the source device and performing HDCP authentication as shown in FIG.
- the switching time is shortened by switching from 2D to 2D video.
- the video image is switched from Side-by-Side video to 2D video more safely than the sequence shown in FIG. Can be switched.
- FIG. 20 is a flowchart illustrating a switching sequence from 2D video to Side-by-Side video in the present embodiment. A switching sequence from 2D video to Side-by-Side video in the present embodiment will be described with reference to FIGS.
- the source device (video player 100) that outputs the video source sets AVMUTE in the GCP and transmits it from the HDMI transmission unit 111 (step S131). Specifically, the source device (video player 100) sets Set_AVMUTE to 1 and Clear_AVMUTE to 0 in the GCP General Control Subpacket shown in FIG. In the section indicated by “mute” of GCP in FIG. 19, this packet is output from the source device.
- Step S131 When AVMUTE is set in GCP in step S131, the video output from the source device (video player 100) is switched from Side-by-Side video to a black screen (Step S132). It should be noted that the setting of AVMUTE to GCP in step S131 and the switching from Side-by-Side video to black image may be at the same timing (same frame), and precedes the setting of AVMUTE to GCP. May be.
- the source device When the video output from the source device (video player 100) is switched from the Side-by-Side video to the black screen in step S132, the source device (video player 100) transmits the 3D information of the Side-by-Side video.
- the output of the InfoFrame to be started is started (step S133).
- a wait is performed for a predetermined period in order to wait for the video processing mode to switch from 2D video to Side-by-Side video (step S134).
- the period in which this wait is inserted may be longer than when the video is switched from 2D video to Side-by-Side video.
- the sink device (television receiver 300) transmits 3D information continuously for several frames (for example, 10 to 20 frames) in order to detect that the sending of InfoFrame that transmits 3D information is stopped by the source device. It confirms that an InfoFrame packet has not arrived. If it is determined that the sending of InfoFrame for transmitting 3D information is stopped by the source device, the sink device (television receiver 300) sets the internal operation mode to a mode for processing 2D video (2D processing mode) and 2D video. Is switched to the mode for displaying (2D display mode). Specifically, the HDMI receiving unit 302 switches the video signal processing circuit 314 and the graphic generation circuit 315 to the 2D processing mode, and switches the panel driving circuit 316 to the 2D display mode.
- the HDMI receiving unit 302 is a glasses driving signal transmission unit for 3D signals that controls opening and closing of the shutter.
- the shutter of the active shutter glasses 840 is brought into an open state by stopping transmission from the H.323.
- the sink device When the sink device (television receiver 300) receives the InfoFrame for transmitting 3D information when switching from Side-by-Side video to 2D video, it is desirable that the display on the screen be immediately black.
- a television receiver since a television receiver receives video input from HDMI and processes video for several frames to display video on a display panel, data for several frames in the television receiver. Has accumulated. Therefore, by receiving an InfoFrame that transmits 3D information and immediately turning the screen display to a black screen, the Side-by-Side video can be changed from the Side-by-Side video to the 2D video within a few frames of data stored in the television receiver. If switching is included, displaying a black image across the switching can prevent a broken image from being displayed.
- the HDMI receiving unit 302 uses the Side-by-Side (Side-by-Side)
- Side-by-Side When an InfoFrame that transmits 3D information (Half) is detected, an event is sent from the HDMI receiving unit 302 to the panel drive circuit to switch the output to the display panel 318 to black image data.
- the HDMI receiving unit 302 detects InfoFrame transmitting 3D information of Side-by-Side (Half)
- an event is sent to the backlight driving circuit 317 to turn off the backlight. is there.
- a repeater device such as the AV amplifier 200
- a source device video player 100
- a sink device television receiver 300
- sending an InfoFrame in which the repeater device transmits 3D information from the source device In order to detect that the frame is stopped, it is confirmed that an InfoFrame packet for transmitting 3D information continuously for several frames does not come. Thereafter, the repeater device (AV amplifier 200) stops outputting the InfoFrame packet that transmits the 3D information from the HDMI transmission unit 206.
- the sink device (television receiver 300) detects that the transmission of InfoFrame for transmitting 3D information has been stopped in the HDMI signal transferred by the repeater device (AV amplifier 200), but the sink device (television receiver 300).
- the source device (video player 100) that outputs the video source cancels AVMUTE by GCP and transmits it from the HDMI transmission unit 111 (step S135). Specifically, in the GCP General Control Subpacket shown in FIG. 10, the source device (video player 100) sets Clear_AVMUTE to 1 and Set_AVMUTE to 0. This packet is output from the source device in the section indicated by “unmount” of GCP in FIG.
- step S1335 when AVMUTE is canceled by GCP, the video output from the source device (video player 100) is switched from a black screen to a 2D video (step S116).
- the content of the packet output from the source device (video player 100) is controlled, so that the sink device ( The television receiver 300) can quickly switch the video. Further, by inserting a black image period between the Side-by-Side video and the 2D video, the video can be switched from the 2D video to the Side-by-Side video more safely than the sequence shown in FIG.
- FIG. 21 is an explanatory diagram showing another example of transmission of video data in the present embodiment when switching from Side-by-Side video to 2D video.
- Another example of video data transmission in the embodiment is as shown in FIG. 21, from Side-by-Side video without stopping output of the video signal from the source device and without performing HDCP authentication.
- the switching time is shortened by switching to 2D video.
- a black screen period is interposed in the middle, so that the Side-by is safer than the sequence shown in FIG. 17 as in the sequence shown in FIG. -Video can be switched from Side video to 2D video.
- the sequence shown in FIG. 21 differs from the sequence shown in FIG. 19 in that the value of InfoFrame for transmitting 3D information is changed from Side-by-Side to 2D at the timing of switching from Side-by-Side video to 2D video. Are transmitted from the source device to the sink device.
- “3D” as the video format type in the “InfoFrame for transmitting 3D information” packet data shown in FIG. Side-by-Side (Half) is set.
- “No Information (2D)” is the type of video format, and the value of the 3D system type is 0 (this field is reserved because the video to be transmitted is not 3D).
- the check frame data also exists in the InfoFrame packet that transmits the 3D information (corresponding to “Checksum” in FIG. 15).
- a change in InfoFrame that transmits 3D information can be detected by confirming the data of this checksum.
- the sink device television receiver 300
- the repeater device AV The HDMI receivers 203 and 302 of the amplifier 200
- the time-out process as shown in FIG. 19 and FIG. 20 when the packet transmission stops is unnecessary.
- the video is changed from Side-by-Side video to 2D video in both the sink device (television receiver 300) and the repeater device (AV amplifier 200), compared to the sequence shown in FIG. It is possible to detect the switching accurately and in a short time (about 0 to 1 frame for each device). As a result, when the source device (video player 100) switches from Side-by-Side video to 2D video, muting is performed before and after the switching, but this muting time is shortened compared to the sequence shown in FIG. Can do. In addition, since the time until video switching is detected by the sink device (television receiver 300) and repeater device (AV amplifier 200) is shortened, it is possible to completely prevent a broken image from being displayed after the mute period. More cases are possible.
- the InfoFrame that transmits 3D information is a packet that does not necessarily need to be transmitted in the 2D video section. Therefore, after the video has switched from Side-by-Side video to 2D video, the source The device may stop sending InfoFrame that transmits 3D information. Further, when it is detected in the repeater device that transmission of InfoFrame for transmitting 3D information indicating 3D Side-by-Side is stopped as in the sequences of FIGS. 17 and 19, 3D is output as the output from the repeater device. Instead of stopping the sending of InfoFrame that transmits information, “InfoFrame that transmits 3D information” indicating 2D is output or “3D information indicating 2D is transmitted” as shown in the sequence of FIG.
- the video to be output is a black screen (or a full-screen single-color image, displayed in 2D or as Side-by-Side, which can be seen without any discomfort.
- the sink device becomes Side-by-S It is also possible to reduce the delay time from the de picture until it detects that switching to 2D video.
- the content of the InfoFrame packet that transmits 3D information transmitted from the source device instead of stopping the transmission of InfoFrame that transmits 3D information from the source device (video player 100).
- the mute period before and after video switching can be shortened, and the time required for video switching can be further shortened.
- a recording medium storing a program may be incorporated in each of the video player 100, the AV amplifier 200, and the television receiver 300. Then, such a program may be read and sequentially executed by a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or other control devices built in the video player 100, the AV amplifier 200, and the television receiver 300, respectively. Good.
- a CPU Central Processing Unit
- DSP Digital Signal Processor
- the source device that outputs video is described as a video player, but the present invention is not limited to such an example.
- the source device may be, for example, a stationary game machine, a set-top box that receives broadcast waves, a personal computer or other information processing device, and an HDMI output in a repeater device Part. That is, the present invention can be applied to any device that can transmit video data to another device as a source device.
- Video display system 100 video player 101 HDMI terminal 102 BD / DVD drive 103 drive I / F 104 Decoding Unit 105 Demultiplexer 106 Video Decoder 107 Video Signal Processing Circuit 108 3D Video Generation Unit 109 Audio Decoder 110 Audio Signal Processing Circuit 111 HDMI Transmitting Unit 121 CPU 122 flash ROM 123 DRAM 124 Remote controller reception unit 200 AV amplifier 201, 202 HDMI terminal 203 HDMI reception unit 204 Video signal processing circuit 205 Graphic generation circuit 206 HDMI transmission unit 207 Audio decoder 208 Audio signal processing circuit 209 Audio amplification circuit 210 Speaker 221 CPU 222 flash ROM 223 DRAM 224 Remote controller reception unit 300 Television receiver 301 HDMI terminal 302 HDMI reception unit 303 Antenna input terminal 311 Digital tuner 312 Demultiplexer 313 Video decoder 314 Video signal processing circuit 315 Graphic generation circuit 316 Panel drive circuit 317 Backlight drive circuit 318 Display Panel 319 Audio decoder 320 Audio signal processing circuit 321 Audio amplification circuit 322 Speaker 323 Glasses driving signal transmission unit
Abstract
Description
<1.本発明の一実施形態>
[1-1.3D映像に関するHDMI規格]
[1-2.映像表示システムの構成]
[1-3.ビデオプレーヤの構成]
[1-4.AVアンプの構成]
[1-5.テレビジョン受像機の構成]
[1-6.映像データの伝送]
[1-6-1.2D映像からSide-by-Side映像への切り替え]
[1-6-2.Side-by-Side映像から2D映像への切り替え]
<2.まとめ>
[1-1.3D映像に関するHDMI規格]
まず、本発明の好適な実施の形態について詳細に説明する前に、3D映像に関するHDMI規格について触れる。HDMI Ver.1.4規格においてInfomative なフォーマットしてSide-by-Side(Half)というフォーマットが定義された。Side-by-Side(Half)は、図1に示したような2D映像(2D Video Format)の横幅を半分に圧縮し、左眼用の画像(L)と右眼用の画像(R)とを図2に示したように左右に並べて(Side-by-Side(Half) Video Format)並べたものである。
以上、3D映像に関するHDMI規格について説明した。次に、本発明の一実施形態にかかる映像表示システムの構成について説明する。
図6は、本発明の一実施形態にかかるビデオプレーヤ100の構成について示す説明図である。以下、図6を用いて本発明の一実施形態にかかるビデオプレーヤ100の構成について説明する。
図7は、本発明の一実施形態にかかるAVアンプ200の構成について示す説明図である。以下、図7を用いて本発明の一実施形態にかかるAVアンプ200の構成について説明する。
図8は、本発明の一実施形態にかかるテレビジョン受像機300の構成について示す説明図である。以下、図8を用いて本発明の一実施形態にかかるテレビジョン受像機300の構成について説明する。
[1-6-1.2D映像からSide-by-Side映像への切り替え]
まず、2D映像からSide-by-Side映像へ切り替える場合に映像表示システムで伝送される映像データの伝送シーケンスについて説明する。最初に従来の映像データの伝送について説明する。図9は、2D映像からSide-by-Side映像へ切り替える際の従来の映像データの伝送シーケンスを示す説明図である。図9は図の上から下へ向かって時間が流れていることを示し、「Video」はビデオ映像信号のシーケンスを示し、「GCP」はGCP(General Control Packet)のデータのシーケンスを示し、「AVI IF」はAVI(Auxiliary Video Information) InfoFrameのシーケンスを示し、「3D情報を伝送するInfoFrame」は3D情報を伝送するInfoFrameのデータのシーケンスを示している。
次に、Side-by-Side映像から2D映像へ切り替える場合に映像表示システムで伝送される映像データの伝送シーケンスについて説明する。最初に従来の映像データの伝送について説明する。図16は、Side-by-Side映像から2D映像へ切り替える際の従来の映像データの伝送シーケンスを示す説明図である。
以上説明したように本発明の一実施形態によれば、2D映像から3D映像に切り替わる際に、また3D映像から2D映像に切り替わる際に、HDCP認証を実施せず、切り替わりを挟んで映像の出力を止めたり、黒画(または所定の色・階調)の映像を表示したりすることで、切り替えに要する時間を短縮し、シンク機器(テレビジョン受像機300)において、Side-by-Side映像を2D映像として、または2D映像をSide-by-Side映像として処理して、画面に崩れた映像を表示することを防ぐことができる。
100 ビデオプレーヤ
101 HDMI端子
102 BD/DVDドライブ
103 ドライブI/F
104 復号部
105 デマルチプレクサ
106 映像デコーダ
107 映像信号処理回路
108 3D映像生成部
109 音声デコーダ
110 音声信号処理回路
111 HDMI送信部
121 CPU
122 フラッシュROM
123 DRAM
124 リモートコントローラ受信部
200 AVアンプ
201、202 HDMI端子
203 HDMI受信部
204 映像信号処理回路
205 グラフィック生成回路
206 HDMI送信部
207 音声デコーダ
208 音声信号処理回路
209 音声増幅回路
210 スピーカ
221 CPU
222 フラッシュROM
223 DRAM
224 リモートコントローラ受信部
300 テレビジョン受像機
301 HDMI端子
302 HDMI受信部
303 アンテナ入力端子
311 デジタルチューナ
312 デマルチプレクサ
313 映像デコーダ
314 映像信号処理回路
315 グラフィック生成回路
316 パネル駆動回路
317 バックライト駆動回路
318 表示パネル
319 音声デコーダ
320 音声信号処理回路
321 音声増幅回路
322 スピーカ
323 メガネ駆動信号発信部
331 CPU
332 フラッシュROM
333 DRAM
334 リモートコントローラ受信部
501、502、503 HDMIケーブル
810、820、830 リモートコントローラ送信機
840 アクティブシャッターメガネ
Claims (13)
- 二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号を出力する伝送信号出力部と、
前記伝送信号出力部から出力される前記制御信号の内容を制御する制御部と、
を備え、
前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わる際に、前記映像信号の前記伝送信号出力部からの出力を停止せず、前記伝送信号出力部から出力していた、前記映像信号が三次元映像であることを示す情報に、前記伝送信号出力部から出力する前記映像信号が二次元映像に切り替わったことを示す情報を含めるよう前記伝送信号出力部を制御する、映像伝送装置。 - 前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わる直前または切り替わりと同一のタイミングから所定の期間、該映像信号の伝送を受ける装置において映像の出力を停止させるためのミュート信号を前記制御信号に含めるよう前記伝送信号出力部を制御する、請求項1に記載の映像伝送装置。
- 前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わる際に所定の色、階調の映像を表示させる映像信号を出力するよう前記伝送信号出力部を制御する、請求項1に記載の映像伝送装置。
- 前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わってから所定の時間が経過した後に、前記映像信号が二次元映像であることを明示的に示す情報の出力を停止するよう前記伝送信号出力部を制御する、請求項1に記載の映像伝送装置。
- 二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号を出力する伝送信号出力部と、
前記伝送信号出力部から出力される前記制御信号の内容を制御する制御部と、
を備え、
前記制御部は、前記映像信号が二次元映像と三次元映像との間で切り替わる際に、前記映像信号の前記伝送信号出力部からの出力を停止せず、前記伝送信号出力部から出力する前記映像信号が三次元映像であることを示す情報の出力を開始または停止するよう前記伝送信号出力部を制御する、映像伝送装置。 - 前記制御部は、前記映像信号が二次元映像と三次元映像との間で切り替わる際に、該切り替わりの直前または該切り替わりと同一のタイミングから所定の期間、該映像信号の伝送を受ける装置において映像の出力を停止させるためのミュート信号を前記制御信号に含めるよう前記伝送信号出力部を制御する、請求項5に記載の映像伝送装置。
- 前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わる際に、前記映像信号が二次元映像から三次元映像に切り替わる際と比較して、前記ミュート信号の期間を長くするよう前記伝送信号出力部を制御する、請求項6に記載の映像伝送装置。
- 前記制御部は、前記映像信号が二次元映像と三次元映像との間で切り替わる際に、所定の色、階調の映像を表示させる映像信号を出力するよう前記伝送信号出力部を制御する、請求項5に記載の映像伝送装置。
- 前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わる際に、前記映像信号の前記伝送信号出力部からの出力を停止せず、前記伝送信号出力部から出力していた、前記映像信号が三次元映像であることを示す情報に、前記伝送信号出力部から出力する前記映像信号が二次元映像に切り替わったことを示す情報を含めるよう前記伝送信号出力部を制御する、請求項5に記載の映像伝送装置。
- 二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号の受け取る伝送信号入力部と、
前記映像信号に基づいた映像を表示する映像表示部と、
前記映像表示部の動作を制御する映像表示制御部と、
を備え、
前記伝送信号入力部は、前記映像信号の二次元映像から三次元映像への、または三次元映像から二次元映像への切り替わりを検出すると、前記映像表示制御部に対し、前記映像表示部の表示を黒画または所定の色、階調の画像にする制御を実行する、映像表示装置。 - 映像を伝送する映像伝送装置と、
前記映像伝送装置から映像の伝送を受けて映像を表示する映像表示装置と、
を備え、
前記映像伝送装置は、
二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号を出力する伝送信号出力部と、
前記伝送信号出力部から出力される前記制御信号の内容を制御する制御部と、
を備え、
前記制御部は、前記映像信号が三次元映像から二次元映像に切り替わる際に、前記伝送信号出力部から出力する前記映像信号が二次元映像であることを明示的に示す情報を前記制御信号に含めるよう前記伝送信号出力部を制御し、
前記映像表示装置は、
二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号の受け取る伝送信号入力部と、
前記映像信号に基づいた映像を表示する映像表示部と、
前記映像表示部の動作を制御する映像表示制御部と、
を備え、
前記伝送信号入力部は、前記映像信号の二次元映像から三次元映像への、または三次元映像から二次元映像への切り替わりを検出すると、前記映像表示制御部に対し、前記映像表示部の表示を黒画または所定の色、階調の画像にする制御を実行する、映像表示システム。 - 二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号を出力する伝送信号出力ステップと、
前記伝送信号出力ステップで出力される前記制御信号の内容を制御する制御ステップと、
を備え、
前記制御ステップは、前記映像信号が三次元映像から二次元映像に切り替わる際に、前記映像信号の出力を停止せず、前記伝送信号出力ステップで出力する前記映像信号が二次元映像であることを明示的に示す情報を前記制御信号に含める制御を実行する、映像伝送方法。 - コンピュータに、
二次元映像または三次元映像を表示させる映像信号、音声を出力させるオーディオ信号及び該映像信号及びオーディオ信号に関する情報が含まれる制御信号を出力する伝送信号出力ステップと、
前記伝送信号出力ステップで出力される前記制御信号の内容を制御する制御ステップと、
を実行させ、
前記制御ステップは、前記映像信号が三次元映像から二次元映像に切り替わる際に、前記映像信号の出力を停止せず、前記伝送信号出力ステップで出力する前記映像信号が二次元映像であることを明示的に示す情報を前記制御信号に含める制御を実行する、コンピュータプログラム。
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BRPI1105239A BRPI1105239A2 (pt) | 2010-01-14 | 2011-01-07 | dispositivos de transmissão de vídeo e de exibição de video, sistema de exibição de vídeo, método de transmissão de vídeo, e, programa de computador |
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KR1020117020505A KR101771262B1 (ko) | 2010-01-14 | 2011-01-07 | 영상 전송 장치, 영상 표시 장치, 영상 표시 시스템, 영상 전송 방법 및 컴퓨터 프로그램 |
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JP5450118B2 (ja) | 2014-03-26 |
KR101771262B1 (ko) | 2017-08-24 |
EP2393302A4 (en) | 2014-01-22 |
EP2393302A1 (en) | 2011-12-07 |
EP2393302B1 (en) | 2018-04-25 |
CN102450027A (zh) | 2012-05-09 |
US20110316990A1 (en) | 2011-12-29 |
KR20120126007A (ko) | 2012-11-20 |
US8754930B2 (en) | 2014-06-17 |
BRPI1105239A2 (pt) | 2019-09-24 |
JP2011146894A (ja) | 2011-07-28 |
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