JP2009296144A - Digital video data transmission apparatus, digital video data reception apparatus, digital video data transport system, digital video data transmission method, digital video data reception method, and digital video data transport method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to appropriately display a three-dimensional video by only connecting a transmission apparatus and a reception apparatus using transport route of general use interface standards. <P>SOLUTION: A digital video data transmission apparatus is provided with: an external device information acquisition unit which acquires device information of an external device 12 connected to the device 10 through an HDMI (High-Definition Multimedia Interface) cable 11; a program stream reproduction unit 6 which reproduces a program stream; a data multiplex system decision unit 1 which extracts three-dimensional video display system information of the external device 12 from the device information of the external device 12 when the program stream reproduced by the program stream reproduction unit 6 is a three-dimensional video system, and decides a data multiplex system of the reproduced program stream so as to suite the extracted three-dimensional video display system information; a data multiplex unit 7 which multiplexes the reproduced program stream data following the multiplex system decided by the data multiplex system decision unit 1; and a transport processing unit 8 which outputs the program stream data multiplexed by the data multiplex unit 7 through a transport route 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a digital video data transmitting apparatus for transmitting and receiving using, for example, the HDMI (High-Definition Multimedia Interface) standard, which is an interface standard for individually transmitting stereoscopic video digital video data as primary color data of each color in pixel units. The present invention relates to a digital video data receiver, a digital video data transmission system, a digital video data transmission method, a digital video data reception method, and a digital video data transmission method.

  In recent years, the HDMI standard has been used as a digital video / audio input / output interface standard for easily connecting a recorder for transmitting digital video data and a television for receiving and displaying the digital video data. In the HDMI standard, primary color data representing each color is expressed as additive color mixed primary color data such as R, G, and B, or three-channel data based on luminance and color difference signals such as Y, Cb, and Cr, and individually for each pixel. Is transmitted. Although the data of each pixel can use 10 bits or more, it is basically composed of 8 bits.

  On the other hand, as a video display method, a stereoscopic video display method that uses a right-eye video and a left-eye video to enter each corresponding eye individually and performs stereoscopic display has been put into practical use. Further, since stereoscopic video display is performed in advance in some movie theaters, further spread is expected in the future. In order to perform stereoscopic video display, it is necessary to transmit and display a right-eye video and a left-eye video in synchronization. As a method of synchronously transmitting the right-eye and left-eye images, either one of the right-eye image data or the left-eye image data is added with the other image data for each pixel, and 2 pixels of image data is added. There has been proposed a method of transmitting image data for stereoscopic video display by configuring with a double bit number (see, for example, Patent Document 1).

JP 2007-336518 A (paragraph 0036, FIG. 4)

  However, in the configuration as described above, the transmission side and the reception side connected via the transmission path process the image data for stereoscopic video display independently of each other. However, there was a problem that appropriate 3D image display could not be performed. In addition, in the transmission method as described above, when image data with a data amount exceeding the display capability on the receiving side has been transmitted, it is necessary to thin out the data on the receiving side, and components that can handle high-speed data transmission are used. In addition, there is a problem that unnecessary data that is not utilized is transmitted.

  The present invention has been made to solve the above-described problems, and uses a transmission path of an interface standard that individually transmits video data as primary color data of each color in units of pixels, and a transmission apparatus and a reception apparatus. Digital video data transmission device, digital video data reception device, digital video data transmission system, digital video data transmission method, digital video data reception method, and digital video data that can display stereoscopic video appropriately by simply connecting The purpose is to obtain a transmission method.

  A digital video data transmission apparatus according to the present invention is a digital video data transmission apparatus that transmits video data using an interface standard that individually transmits pixel data as primary color data of each color in pixel units, and a transmission path that uses the interface standard. An external device information acquisition unit that acquires device information of an external device connected to the device, a program stream reproduction unit that reproduces a program stream, and a program stream that is reproduced by the program stream reproduction unit is a stereoscopic video system Data multiplexing for extracting 3D video display method information of the external device from device information of the external device and determining a data multiplexing method of the reproduced program stream so as to conform to the extracted 3D video display method information In accordance with the multiplexing scheme determined by the scheme determining unit and the data multiplexing scheme determining unit, A data multiplexer for multiplexing data of the program stream, the data multiplexing unit through the transmission path is one that includes a transmission processing unit that outputs data of a program stream obtained by multiplexing a.

  The digital video data receiving apparatus according to the present invention is a digital video data receiving apparatus that receives video data using an interface standard that individually transmits pixel data as primary color data of each color in units of pixels, and uses the interface standard for transmission. A receiving device information output unit for transmitting device information of the device to an external device connected to the device via a path; a separation processing unit for separating data of a program stream transmitted from the external device; and the separation A multiplexed information extracting unit that extracts multiplexed information from the processed data; and, when the video data is a stereoscopic video format, the separated video data is stereoscopically converted based on the multiplexed information extracted by the multiplexed information extracting unit. A video processing unit for processing for video display.

  According to another aspect of the present invention, there is provided a digital video data transmission system that transmits the digital video data via a transmission path that uses the digital video data transmission apparatus and an interface standard that individually transmits video data as primary color data of each color in pixel units. A digital video data receiving device connected to the device.

  The digital video data transmission method according to the present invention is a digital video data transmission method for transmitting video data using an interface standard for individually transmitting pixel data as primary color data of each color in units of pixels, wherein the transmission is performed using the interface standard. An external device information acquisition step for acquiring device information of an external device connected to the device via a route, a program stream reproduction step for reproducing a program stream, and a program stream reproduced in the program stream reproduction step is a stereoscopic video system In this case, the data for determining the data multiplexing method of the reproduced program stream is extracted from the device information of the external device to extract the stereoscopic video display method information of the external device and match the extracted stereoscopic video display method information. Multiplexing method determination step and the data multiplexing method determination step A data multiplexing step for multiplexing the reproduced program stream data in accordance with the multiplexing method determined in step (b), and a transmission processing step for outputting the program stream data multiplexed in the data multiplexing step via the transmission path. Are provided.

The digital video data receiving method according to the present invention is a digital video data receiving method for receiving video data using an interface standard for individually transmitting pixel data as primary color data of each color in pixel units, and transmitting using the interface standard A receiving device information output step of transmitting device information of the device to an external device connected to the device via a path; a separation processing step of separating data of a program stream transmitted from the external device; and the separation A multiplexed information extraction step for extracting multiplexed information from the processed data;
When the video data is a stereoscopic video system, the video data processing step includes processing the separated video data for stereoscopic video display based on the multiplexed information extracted in the multiplexed information extracting step.

  The digital video data transmission method according to the present invention includes the digital video data transmission method and the digital video data via a transmission path using an interface standard for individually transmitting video data as primary color data of each color in pixel units. And a receiving method.

  According to the present invention, image data for stereoscopic video display is processed according to the capability of a receiving device connected via a transmission path using an interface standard that individually transmits video data as primary color data of each color in pixel units. Digital video data transmission apparatus, digital video data reception apparatus, digital video data transmission system, digital video data transmission method, capable of appropriately displaying stereoscopic video simply by connecting a transmission apparatus and a reception apparatus A digital video data receiving method and a digital video data transmitting method are obtained.

Embodiment 1 FIG.
FIG. 1 is a block diagram illustrating a configuration of a digital video data transmission apparatus, a digital video data reception apparatus, and a digital video data transmission system in which both are connected via an HDMI cable according to Embodiment 1 of the present invention. In the figure, an HDMI cable 11 using an interface standard for individually transmitting video data as a primary color data of each color as a primary color data of each color between a recording / playback device 10 as a digital video data transmission device and a television 12 as a digital video data reception device. Is connected using. The television 12 is an external device connected via an HDMI cable as viewed from the recording / playback device 10 as a digital video data transmission device, and the recording / playback device 10 as viewed from the television 12 as a digital video data reception device. Is an external device connected via an HDMI cable.

  A recording / playback apparatus 10 that is a digital video data transmission apparatus includes a controller 1 that controls the entire apparatus, a tuner 2 that receives broadcast waves, a recording processing unit 3 that performs signal processing for recording a received program stream, and a recording medium. A certain program storage area 4 and an optical drive 5, a reproduction processing unit 6 that reads and outputs a program stream recorded on a recording medium, a multiplexing processing unit 7 that multiplexes data of the reproduced program stream, and an HDMI cable that is a transmission path 11 includes a transmission processing unit 8 that performs data transmission processing with a television 12 that is a digital video data receiving apparatus.

  The television 12, which is a digital video data receiving device, includes a controller 20 that controls the entire device, a transmission processing unit 21 that performs data transmission processing with the recording / playback device 10 using the interface cable 11, and audio that is multiplexed data. A separation processing unit 22 that performs separation processing into data and video data, a video processing unit 23 that processes the separated video data, a display processing unit 24 that converts the processed video data into a format signal for a display device, It has a display device 25, an audio output processing unit 26 that processes the separated audio data, and a speaker 27. In the present embodiment, only the portion related to 3D video will be described for the television 12.

  The HDMI cable 11 serving as a transmission path is a cable compliant with the HDMI (High-Definition Multimedia Interface) interface standard, and one end of the cable is connected to each of the recording / playback apparatus 10 and a connector terminal (not shown) installed in the television 12. By inserting the other end, data transmission between both devices becomes possible. Moreover, as long as the device conforms to the same standard, data transmission can be performed by simply inserting the device into an HDMI connector terminal installed in the device. Next, details of each part will be described.

  The recording / playback apparatus 10 which is a digital video data transmission apparatus according to the first embodiment records and plays back a program corresponding to a stereoscopic (hereinafter referred to as 3D) video under the control of the controller 1. The tuner 2 receives a broadcast wave according to an instruction from the controller 1 and outputs a program stream to the recording processing unit 3 or the reproduction processing unit 6.

  When recording a program stream, the program stream is input from the tuner 2 to the recording processing unit 3 and is output to the program storage area 4 or the optical drive 5 which is a recording medium according to an instruction from the controller 1. The program storage area 4 is composed of a hard disk, and stores a program stream from the recording processing unit 3 under the control of the controller 1. The optical drive 5 is a device that reads from and writes to a removable recording medium such as a DVD, and stores a program stream from the recording processing unit 3 under the control of the controller 1.

  When the program stream is reproduced, the program stream is output from the program storage area 4 or the optical drive 5 to the reproduction processing unit 6 when the program stream recorded on the recording medium is reproduced according to an instruction from the controller 1. On the other hand, a program stream is output from the tuner 2 to the reproduction processing unit 6 during real-time viewing. The reproduction processing unit 6 receives the input program stream in accordance with an instruction from the controller 1, decodes it into video data and audio data, and outputs it to the multiplexing processing unit 7. The multiplexing processing unit 7 multiplexes the video data and audio data from the reproduction processing unit 6 in accordance with an instruction from the controller 1 and outputs the multiplexed data to the transmission processing unit 8. The transmission processing unit 8 transmits the multiplexed video / audio information to the television 12 through the HDMI cable 11 that connects the television 12 that is a digital video data receiving device, in accordance with an instruction from the controller 1.

  At this time, when the video is a 3D video, the reproduction processing unit 6 decodes the right-eye video and the left-eye video, respectively, and outputs the decoded video to the multiplexing processing unit 7. When the video is a 3D video, the multiplexing processing unit 7 multiplexes the right-eye video and the left-eye video in accordance with an instruction from the controller 1, further multiplexes the audio, and outputs the multiplexed audio to the transmission processing unit 8. The 3D video multiplexing method will be described in detail later.

  The television 12 as a digital video data receiving apparatus displays a program stream input via the HDMI cable 11 and a program stream from a broadcast wave received by its own tuner (not shown) under the control of the controller 20. . If the program stream to be displayed is 3D video, the controller 20 controls the display of the program corresponding to the 3D video, that is, video display that allows the viewer to view stereoscopically. However, the following description will be made specifically for displaying a program stream input via the HDMI cable 11 serving as a transmission path.

  The transmission processing unit 21 receives data containing video / audio information or multiplexing method information from the recording / playback apparatus 10 input via the HDMI cable 11 in accordance with an instruction from the controller 20 and outputs the data to the separation processing unit 22. To do. The transmission processing unit 21 also functions as a reception device information output unit that transmits device information of the television 12 to the recording / reproducing device when a request is made from the recording / reproducing device 10 through the HDMI cable 11. The separation processing unit 22 separates video data and audio data in the data, and outputs the video data to the video processing unit 23 and the audio to the audio output processing unit 26. Further, when information such as a multiplexing method is added to the data, it functions as a multiplexed information extracting unit that extracts multiplexed information and outputs it to the controller 20. In accordance with an instruction from the controller 20, the video processing unit 23 performs necessary video processing on the input video and then outputs a video signal to the display processing unit 24. The display processing unit 24 converts the video signal into a signal in a format that can be output to the display device 25 in accordance with an instruction from the controller 20, and outputs the signal data to the display device 25. The display device 25 performs screen display based on the signal data output from the display processing unit 24. On the other hand, the audio output from the separation processing unit 22 is subjected to necessary audio processing by the audio processing unit 26 and then output to the speaker 27, and the sound is output from the speaker 27.

  FIG. 2 is a configuration diagram of a signal that flows through the HDMI cable 11 that connects the transmission processing unit 8 of the recording / playback apparatus 10 and the transmission processing unit 21 of the television 12. Channel 0, channel 1, and channel 2 are signal lines through which video data and audio data flow. Considering the case of flowing R, G, and B primary color data, B data is assigned to channel 0, G data is assigned to channel 1, and R data is assigned to channel 2, and the data of three channels are individually assigned in units of pixels. Is transmitted. The audio data is transmitted as auxiliary data during the blanking period of the video data.

  A DDC (Display Data Channel) line is used by the source device (recording / reproducing apparatus 10) to know device information that is the capability and characteristics of the sink device (TV 12). Based on this information, the source device can select video and audio that can be displayed by the sink device. A CEC (Consumer Electronics Control) line is used to realize a function that allows a source device and a sink device to control each other.

  Next, three main 3D video display systems will be described. FIG. 3 shows the distribution of left-eye data and right-eye data in a one-frame screen in order to explain one example of a stereoscopic video display method when performing 3D display. The pixels in the horizontal direction of the display device alternately display the left-eye video and the right-eye video (hereinafter referred to as pixel-alternating type), and each pixel includes pixel 0, pixel 2, pixel 4, and pixel 6 in each line. Are even pixels that display the image for the left eye, and odd pixels such as pixel 1, pixel 3, and pixel 5 in each line are all pixels that display the image for the right eye. By disposing a deflection filter corresponding to the pixel arrangement in front of the screen (viewer side) that displays an image having such a data structure, and viewing with the corresponding deflection glasses, the image for the right eye is displayed on the right eye, The left eye can see the image for the left eye. In this example, the even pixels are used for the left eye and the odd pixels are used for the right eye, but of course, the even pixels may be designed for the right eye and the odd pixels may be designed for the left eye.

  FIG. 4 shows the distribution of left-eye data and right-eye data in a one-frame screen to explain another example of a stereoscopic video display method when performing 3D display. Unlike the case of FIG. 3, this time, the vertical line of the display device displays the left-eye video and the right-eye video alternately (hereinafter referred to as line-alternating type). The even lines such as line 1 are all lines for displaying the image for the left eye, and the odd lines such as line 1 and line 3 are all lines for displaying the image for the right eye. By disposing a deflection filter corresponding to the above line arrangement in front of the screen (viewer side) displaying an image having such a data structure, and viewing with the corresponding deflection glasses, the image for the right eye is displayed on the right eye, The left eye can see the image for the left eye. In this example, the even lines are for the left eye and the odd lines are for the right eye, but of course, the even lines may be designed for the right eye and the odd lines may be designed for the left eye.

  FIG. 5 shows the distribution of left-eye data and right-eye data on a screen over a plurality of frames in order to explain yet another example of a stereoscopic video display method when performing 3D display. Unlike the cases of FIGS. 3 and 4, only the left-eye or right-eye video is displayed in the frame. In the example of FIG. 5, only the left-eye video is displayed in even-numbered frames such as frame 0, frame 2, and frame 4, and only the right-eye video is displayed in odd-numbered frames such as frame 1 and frame 3. (Referred to as an expression). When this image is viewed with the switching shutter synchronized with the frame display, the shutter opens only when the left-eye image is displayed, and the right-eye side when the right-eye image is displayed. Only when the shutter is opened, the left eye can see the left eye and the right eye can see the right eye. In this example, the even frame is used for the left eye and the odd frame is used for the right eye. However, the even frame may be designed for the right eye and the odd frame may be used for the left eye.

  Further, in the case of a display device using a laser as a light source, if the laser light source of p-polarized light and the laser light source of s-polarized light are made to emit pulses in synchronization with the frame, the same as the method of FIGS. The right eye can see an image for the right eye, and the left eye can see an image for the left eye. Alternatively, if polarizing plates having different fast axis directions are alternately transmitted in synchronism with the frame with respect to a single polarized light source, viewing is performed with the same polarizing glasses as in the system of FIGS. Thus, the right eye can see the right eye image, and the left eye can see the left eye image.

  Next, a method for multiplexing the left-eye video and the right-eye video in the multiplexing processing unit 7 of the recording / reproducing apparatus 10 will be described. In the first embodiment, the video data of the program stream reproduced by the reproduction processing unit 6 is one screen full high-definition (horizontal 1920 pixels) that is the image display capability of the display device 25 of the television 12 for both the right eye and the left eye. It is assumed that the image data for the frame frequency of the display device 25 is provided with the number of pixels corresponding to × 1080 lines). That is, it is assumed that the data amount is double the data amount that can be displayed on the display device 25 of the television 12.

FIG. 6 shows a multiplexing method corresponding to the pixel-alternating 3D display method shown in FIG. 3, and the number of horizontal pixels of the left-eye video and right-eye video is halved in accordance with the image display capability of the television 12. Thinning and multiplexing were performed so that the pixels of the left-eye video and the right-eye video were alternately arranged. B data pixels of the left eye video are sequentially set to B0L, B1L, B2L, B3L,..., And G data pixels of the left eye video are sequentially set to G0L, G1L, G2L, G3L,. The R data pixels of the video are sequentially designated as R0L, R1L, R2L, R3L,..., The B data pixels of the right eye video are designated as B0R, B1R, B2R, B3R,. The G data pixels are sequentially G0R, G1R, G2R, G3R,..., And the R data pixels of the right-eye video are sequentially R0R, R1R, R2R, R3R,. In addition, even-numbered pixels such as pixel 0 and pixel 2 in FIG. 6 are arranged with pixels constituting a left-eye image, and odd-numbered pixels such as pixel 1 and pixel 3 in FIG. 6 are pixels constituting a right-eye image. Is arranged. Here, BH1R, BH2L, GH1R, GH2L, RH1R, and RH2L in FIG. 6 are expressed by the following equations.
BH1R = (B0R + B1R × 2 + B2R) ÷ 4
BH2L = (B1L + B2L × 2 + B3L) ÷ 4
GH1R = (G0R + G1R × 2 + G2R) ÷ 4
GH2L = (G1L + G2L × 2 + G3L) ÷ 4
RH1R = (R0R + R1R × 2 + R2R) ÷ 4
RH2L = (R1L + R2L × 2 + R3L) ÷ 4

  As described above, the data amount can be reduced by half while suppressing the influence of the thinning by referring to the information of the pixels thinned to the left and right with the pixel at the arrangement destination as the center. The conversion formula for thinning out may be other than the above formula as long as the number of pixels in the horizontal direction is halved using the information of the left-eye video that is the conversion source. The same applies to the right-eye video. In the above example, even-numbered pixels are left-eye images and odd-numbered pixels are right-eye images, but even-numbered pixels may be right-eye images and odd-numbered pixels are left-eye images. On the other hand, when the reproduced video data is an interlace method in which the video for the left eye and the video for the right eye are within 60 fields per second, and 60 frames of video can be transmitted from the recording / playback apparatus 10 to the television 12, no decimation is performed. Multiplexing without performing thinning may be performed by alternately replacing even-numbered pixel lines in each line.

FIG. 7 shows a multiplexing method corresponding to the line-alternating 3D display method shown in FIG. 4, and the number of lines for the left-eye video and the right-eye video is thinned in half according to the image display capability of the television 12. The left-eye video line and the right-eye video line are alternately arranged. The left-eye video B data lines are sequentially designated as BL0L, BL1L, BL2L, BL3L,..., The left-eye video data lines are designated as GL0L, GL1L, GL2L, GL3L,. The R data lines of the video are sequentially set as RL0L, RL1L, RL2L, RL3L,..., The B data lines of the right eye video are sequentially set as BL0R, BL1R, BL2R, BL3R,. The G data lines are sequentially designated as GL0R, GL1R, GL2R, GL3R,..., And the R data lines of the right-eye video are designated as RL0R, RL1R, RL2R, RL3R,. In addition, lines constituting left-eye video are arranged on even lines such as line 0 and line 2 in FIG. 7, and lines constituting right-eye video are arranged on odd lines such as line 1 and line 3 in FIG. Is arranged. Here, BV1R, BV2L, GV1R, GV2L, RV1R, and RV2L in FIG. 7 are expressed by the following equations.
BV1R = (BL0R + BL1R × 2 + BL2R) ÷ 4
BV2L = (BL1L + BL2L × 2 + BL3L) ÷ 4
GV1R = (GL0R + GL1R × 2 + GL2R) ÷ 4
GV2L = (GL1L + GL2L × 2 + GL3L) ÷ 4
RV1R = (RL0R + RL1R × 2 + RL2R) ÷ 4
RV2L = (RL1L + RL2L × 2 + RL3L) ÷ 4

  As described above, the amount of data can be reduced by half while suppressing the influence of the thinning by referring to the information of the thinned line with the arrangement destination line as the center, and thinning out. The conversion formula for thinning out may be other than the above formula as long as the number of lines in the vertical direction is halved using the information of the left-eye video that is the conversion source. The same applies to the right-eye video. In the above example, the even line is the left-eye video and the odd line is the right-eye video, but the even-numbered line may be the right-eye video and the odd-line is the left-eye video. On the other hand, when the video for the left eye and the video for the right eye are interlaced within 60 fields per second and 60 frames of video can be transmitted from the recording / playback apparatus 10 to the television 12, the video for the left eye is converted without performing the above conversion. By alternately arranging the right-eye line and the right-eye video line, multiplexing may be performed without performing thinning.

  FIG. 8 shows a multiplexing method corresponding to the frame alternating 3D display method shown in FIG. 5, in which the frame frequency is doubled and the left-eye video frame and the right-eye video frame are alternately arranged. . However, since the transmission amount exceeds twice the image display capability of the television 12 as it is, the total data transmission amount is increased by applying the method of decimating and halving the number of horizontal pixels performed in FIG. The frame frequency can be doubled. As a specific conversion method, the number of horizontal pixels is halved using the conversion formula for the left eye or only for the right eye in FIG. 6, and the video for the left eye and the video for the right eye are alternately switched for each frame. Converts without thinning out. For example, the B data video of frame 0 before conversion is generated by horizontally thinning out the left eye image of frame 0 before conversion by BFOL, which is a frame constituting the left eye video as converted frame 0. BF1R, which is a frame constituting a right-eye video, as converted frame 1 is generated by performing horizontal thinning from the right-eye image of frame 0 before conversion. As another method of doubling the frame frequency, there is a method of halving the data amount of the converted frame by using the method of halving the number of lines in FIG. In the above example, the even frame is the left eye video and the odd frame is the right eye video, but the even frame may be the right eye video and the odd frame left eye video. On the other hand, when the video for the right eye and the video for the left eye is within 30 frames per second (60 frames per second including the video for the right eye and the left eye together) and 60 frames per second can be transmitted from the recording / playback apparatus 10 to the television 12 The right-eye video and the left-eye video may be transmitted without being thinned out.

  FIG. 9 is a configuration example of data called VSDB (Vender Specific Data Block) transmitted through a DDC line connecting the transmission processing unit 8 of the recording / playback apparatus 10 and the transmission processing unit 21 of the television 12 through the HDMI cable 11. By reading the VSDB of the sink-side device (television 12) from the source-side device (recording / playback apparatus 10), the capability and characteristics (device information) of the sink-side device can be known. In the figure, the upper 4 bits of the 0th byte are the tag code of the block, the lower 4 bits of the 0th byte are the block length, the 1st to 3rd bytes are the recognition code, the 4th and 5th bytes are the source The physical address of the device on the side, the 6th byte is flag information such as color depth, the 7th byte is the maximum transfer clock, the upper 2 bits of the 8th byte are flags relating to the delay amount, and the 9th to 12th bytes are video Represents the amount of audio delay. In the upper 4 bits of the 13th byte, whether the sink side device can support 3D display, if it is compatible, which display method is used, even pixels (in the case of pixel alternate type), even lines (line 3D display information, which is stereoscopic video display method information indicating whether or not even frames (in the case of alternating frames) are images for the left eye, is set. By reading the 3D information, the source device can know the 3D compatibility status and display method of the sink device, and can know which decimation method and multiplexing method should be used to process the video data.

  FIG. 10 shows one of the auxiliary data that can be sent during the blanking period of the video data in the channel 0 to the channel 2 connecting the transmission processing unit 8 of the recording / playback apparatus 10 and the transmission processing unit 21 of the television 12 through the HDMI cable 11. This is a configuration example of AVI (Auxiliary Video Information) InfoFrame. The source-side device can transmit the characteristics of the video data to the sink-side device by setting the characteristics of the currently transmitted video data in the AVI InfoFrame. In the figure, the 0th byte is the checksum of the packet, the 1st to 5th bytes are flag information related to video data, the 6th to 13th bytes are information about the effective area of the video, the 14th byte The upper 4 bits of 3D describe 3D multiplexed information. In the 3D multiplex information, if the video data is 2D, 3D, or 3D, the type information of the multiplexing method of the left-eye video and the right-eye video (pixel alternating type, line alternating type, frame alternating type, and thinning type) And information for distinguishing the left-eye video from the right-eye video (for example, information about whether the left-eye video is an even pixel, an even line, or the frame) is described. The device on the sink side reads the 3D multiplex information so that if the currently transmitted video is 2D, 3D, or 3D, which multiplexing method is used and how the left and right video can be distinguished, etc. You can know the information.

  Next, the multiplexing method selection processing of the controller 1 when the multiplexing processing unit 7 of the recording / reproducing apparatus 10 multiplexes the left-eye video and the right-eye video will be described. The controller 1 is provided with a memory (not shown), and the memory includes a video format of the reproduced program stream, a stereoscopic video display method and an image display capability of the television 12, and a corresponding multiplexing method and thinning method. A table indicating a suitable combination of the above is stored. Then, the controller 1 controls the operation as described below with reference to the table based on the video format of the program stream to be reproduced, the device information input from the television 12, and the like.

  FIG. 11 is a flowchart of the multiplexing method selection process in the controller 1. In the figure, in step S101, the type of video data of the program stream reproduced by the reproduction processing unit 6 is identified, the process is changed depending on whether the reproduced video is 3D video, and if it is 3D video, the process proceeds to step S102. Otherwise, the process proceeds to step S106. In step S102, the device information of the television 12 is acquired from the VSDB read from the television 12 via the HDMI cable 11, and the process proceeds to step S103. In step S103, 3D display information that is stereoscopic video display method information is extracted from the acquired device information, and it is determined whether or not the television 12 supports 3D display based on the extracted 3D display information. If it is 3D compatible, the process proceeds to step S104. If not, the process proceeds to S107.

  In step S104, it is determined whether or not the recording / playback apparatus 10 can convert in accordance with the 3D display system of the television 12. For example, when the 3D display method of the television 12 is a method in which the right-eye video and the left-eye video are alternately displayed for each line, the recording / playback apparatus 10 can multiplex the right-eye video and the left-eye video alternately for each line. Judge whether or not. Further, image display capability information of the display device of the television 12 is extracted from the acquired device information, and it is determined whether or not thinning is necessary based on the extracted image display capability information. If conversion is possible, the process proceeds to step S105; otherwise, the process proceeds to step S108. In step S105, the controller 1 functioning as a multiplexing method determination unit sets the 3D display method, the arrangement order of pixels, lines, and frames, the data thinning out, etc. according to the stereoscopic image display method information and image display capability information of the television 12. The video data and right-eye video data thinning method and multiplexing are determined, and an instruction is given to the multiplexing processing unit 7. Further, it instructs to multiplex audio data as auxiliary data. Further, a description of the multiplexing method of the left-eye video and the right-eye video and the method of discriminating between the left-eye video and the right-eye video is instructed in the InfoFrame 3D multiplex information, and the processing is terminated.

  Step S107 is processing performed when the video data reproduced by the reproduction processing unit 6 is 3D video, but the television 12 does not support 3D display, and the left-eye video output from the reproduction processing unit 6 or The multiplexing processing unit 7 is instructed to select any one of the right-eye videos and handle them as 2D display format videos, and the process proceeds to step S106.

  Step S108 is processing performed when the playback video is 3D video and cannot be converted into the 3D display format of the television 12 by the recording / playback apparatus 10, and is common to the source side and the sink side of all devices that support 3D display. A default multiplexing method is determined in advance, and the multiplexing processing unit 7 is instructed to multiplex the left-eye video and the right-eye video by the default multiplexing method and further multiplex the audio data as auxiliary data. Further, a description of the multiplexing method of the left-eye video and the right-eye video and the method of discriminating between the left-eye video and the right-eye video is instructed in the InfoFrame 3D multiplex information, and the processing is terminated. When the default multiplexing method is selected, conversion cannot be performed with a multiplexing method suitable for the 3D display method of the television 12, and degradation may occur when thinning is performed, but the recording / playback apparatus 10 cannot cope with it. Even in the 3D display system, video data that can be displayed on the television 12 can be transmitted.

  Step S106 is a process performed when the reproduced video is not 3D video or when 3D display is not possible on the television 12, and in accordance with the so-called 2D display method that is not stereoscopic video display, that is, one video and audio data are not changed. Multiplexing is instructed to the multiplexing processing unit 7. In addition, a description that it is 2D video is instructed to 3D multiplex information of InfoFrame, and the process ends.

  Next, an operation at the time of processing 3D video data transmitted via the HDMI cable 11 in the television 12 which is a digital video data receiving apparatus will be described. Specifically, the separation selection process of the controller 20 when the separation processing unit 22 separates the left-eye video, the right-eye video, and the audio data will be described. FIG. 12 is a flowchart of the separation selection process in the controller 20. In the figure, in step S201, 3D multiplexing information is acquired from the AVI InfoFrame separated by the separation processing unit 22, and the process proceeds to step S202. In step S202, it is determined whether or not the transmitted video is a 3D video based on the acquired 3D multiplexing method information. If it is a 3D video, the process proceeds to step S203, and if not, the process proceeds to step S205. In step S203, it is determined whether the multiplexing method of the left-eye video and the right-eye video matches the 3D display method of the television 12. If they match, the process proceeds to S204, and if not, the process proceeds to S206. In step S204, since the 3D display system of the television 12 and the multiplexing system of the left-eye video and the right-eye video are the same, only the audio is separated without changing the video, and the video is output to the video processing unit S23. The audio data is output to the audio output processing unit. Since the video is already a 3D video in a format that can be output to the display device 25, the video processing unit S23 is instructed to that effect, and the processing ends.

  In step S206, when the video is a 3D video and the multiplexing method does not match the 3D display method of the television 12 (when the recording / playback apparatus 10 performs multiplexing using the default multiplexing method (step S108 in FIG. 11)), The separation processing unit 22 is instructed to separate the left-eye video and the right-eye video from the default multiplexing method and output them to the video processing unit 23. In step S207, the video processing unit 23 converts the left-eye video and the right-eye video in accordance with the 3D display system of the television 12, and the process ends.

  Step S205 is processing performed when the video is a 2D video that is not a 3D video, and the video is output to the video processing unit S23 as a 2D video by separating only the audio without changing the video. The audio data is output to the audio output processing unit, and the process ends.

  As described above, according to the digital video data transmitting apparatus according to the first embodiment, the HDMI cable which is a transmission path using the interface standard (HDMI standard) for individually transmitting video data as primary color data of each color in units of pixels. 11, the transmission processing unit 8 that functions as an external device information acquisition unit that acquires device information of the television 12 that is an external device connected to the recording / playback apparatus 10 that is the device, the controller 1, and the program stream When the reproduction processing unit 6 functioning as a program stream reproduction unit and the program stream reproduced by the program stream reproduction unit 6 are in the stereoscopic video format, the stereoscopic video display format information of the television 12 is extracted from the device information of the television 12 and extracted. Determines the data multiplexing method for the reproduced program stream so that it conforms to the stereoscopic image display method information. A controller 1 that functions as a data multiplexing method determination unit, and a multiplexing processing unit that functions as a data multiplexing unit that multiplexes reproduced program stream data according to the multiplexing method determined by the data multiplexing method determination unit 1 7 and a transmission processing unit 8 for outputting the data of the program stream multiplexed by the data multiplexing unit 7 via the transmission path 11, the recording / reproducing apparatus 10 which is a digital video data transmitting apparatus. Since the recording / reproducing apparatus 10 can transmit the stereoscopic video data multiplexed by the multiplexing method suitable for the television 12 only by connecting the digital video data receiving apparatus 12 and the television 12 as the digital video data receiving apparatus, the recording / reproducing apparatus 10 Can be appropriately displayed on the television 12.

  In particular, since the multiplexing processing unit 7 functioning as a data multiplexing unit is configured to add multiplexing method information to multiplexed program stream data, the television 12 transmits based on the added information. Separation processing suitable for the stereoscopic image data thus performed can be performed, and good stereoscopic image display can be performed.

  Further, the controller 1 functioning as a data multiplexing method determination unit extracts the image display capability information of the television 12 from the device information of the television 12 that is an external device, and the program reproduced so as to conform to the extracted image display capability information. The stream data thinning method is determined, and the data multiplexing unit 7 is configured to thin the reproduced program stream data according to the determined thinning method and then multiplex the data, so that the 3D video display method of the television 12 is used. Since a combined thinning method can be selected and thinned out, and multiplexing is performed without increasing the data transfer amount per pixel, deterioration in display quality can be suppressed.

  Also, in the thinning method, the right-eye video data and the left-eye video data of the reproduced 3D video display method program stream are thinned out to be half the size, so compared with the 2D video display method. Since the data transmission amount does not change, the left-eye video and the right-eye video can be transferred using the transmission path according to the normal interface standard as it is. Further, since the recording / playback apparatus 10 is configured to convert and transmit to a multiplexing system compatible with the television 12, the television 12 itself adopts a default multiplexing system as a default. It is only necessary to have a process for converting to a 3D video display method, and the cost of equipment required for transmission and conversion of 3D video can be suppressed.

  Further, according to the digital video data receiving apparatus according to the first embodiment, the external connected to the device via the transmission path 11 using the interface standard for transmitting the video data individually as the primary color data of each color in units of pixels. A controller 20 and a transmission processing unit 21 that function as a receiving device information output unit that transmits device information of the device to the recording / playback device 10 that is a device, and a separation that separates program stream data transmitted from the recording / playback device 10 The processing unit 22, the separation processing unit 22 that functions as a multiplexed information extraction unit that extracts multiplexed information from the separated data, and the multiplexing information extracted by the multiplexed information extraction unit 22 when the video data is a stereoscopic video system. And a video processing unit 23 for processing the separated video data for stereoscopic video display based on the conversion information. Since the recording / playback apparatus 10, which is a component device, can transmit video data for stereoscopic video display in a data format according to the capabilities of the equipment of the television 12, the stereoscopic video data received from the recording / playback apparatus 10 is transmitted to the television 12. It can be displayed properly with the default function.

  Furthermore, according to the digital video data transmission system according to the first embodiment, the recording / playback device 10 that is the digital video data transmitting device and the television 12 that is the digital video data receiving device are connected to the video data of each color. Since it is configured to be connected by the HDMI cable 11 which is a transmission path using an interface standard (HDMI standard) for individually transmitting the primary color data in units of pixels, a system configuration can be easily made and a good stereoscopic video display can be performed. .

  In addition, since the interface standard of the transmission path is the HDMI (High Definition Multimedia Interface) standard, data between the recording / reproducing apparatus 10 and the television 12 can be smoothly transmitted, and other than the transmitter / receiver shown in the present embodiment. A transmission system can be formed by connecting to an external device compliant with the HDMI standard.

  In the digital video data transmission method according to the first embodiment, the video data is transmitted via the HDMI cable 11 which is a transmission path using an interface standard (HDMI standard) for individually transmitting the video data as primary color data of each color in units of pixels. External device information acquisition step S102 for acquiring device information of the television 12 that is an external device connected to the recording / reproducing apparatus 10 that is a device, a program stream reproduction step for reproducing a program stream, and a program reproduced in the program stream reproduction step When the stream is a stereoscopic video system, the television 12 stereoscopic video display system information is extracted from the equipment information of the television 12 in step S102, and the data multiplexing system of the reproduced program stream is set so as to match the extracted stereoscopic video display system information. Data multiplexing method determination step to be determined and data multiplexing Data multiplexing step S105 for multiplexing the reproduced program stream data in accordance with the multiplexing method determined in the equation determining step, and transmission for outputting the program stream data multiplexed in the data multiplexing step via the transmission path 11 Therefore, the transmitted stereoscopic video data can be converted by simply connecting the recording / playback device 10 as a digital video data transmitting device and the television 12 as a digital video data receiving device with an HDMI cable 11. It can be displayed appropriately on the television 12.

Further, in the digital video data receiving method according to the first embodiment, an external device connected to the device via the transmission path 11 using the interface standard for transmitting the video data individually as the primary color data of each color in units of pixels. A receiving device information output step of transmitting device information of the device to a certain recording / reproducing device 10;
Separation processing step S204 for separating the program stream data transmitted from the recording / reproducing apparatus 10, multiplexing information extraction step S203 for extracting multiplexed information from the separated data, and video data in a stereoscopic video format And a video processing step for processing the separated video data for stereoscopic video display based on the multiplexed information extracted in the multiplexed information extraction step S203. Since the video data for stereoscopic video display in a data format corresponding to the capability of the equipment of the television 12 can be transmitted, the received stereoscopic video data can be appropriately displayed using the default function of the television 12.

  Furthermore, according to the digital video data transmission method according to the first embodiment, the above-mentioned digital video data is transmitted via the transmission path using the interface standard (HDMI standard) for individually transmitting the video data as primary color data of each color in units of pixels. Since the video data transmission method and the digital video data reception method are configured, a favorable stereoscopic video display can be performed with a simple configuration.

Embodiment 2. FIG.
Unlike the first embodiment, the recording / playback apparatus 10 and the television 12 according to the second embodiment can perform two-way communication instead of the DDC of the HDMI cable 11 as a transmission path for information related to the 3D display method of the television 12. CEC is used. The recording / playback apparatus 10 and the television 12 according to the second embodiment will be described with reference to FIG. 1 used in the first embodiment. The transmission processing unit including the controller 1 and the transmission processing unit 8 of the recording / playback apparatus 10 includes: The controller 20 and the transmission processing unit 21 functioning as a receiving device information output unit of the television 12 have a function of outputting the capability information of the recording / reproducing device 10 to the television 12 via the HDMI cable 11 serving as a transmission path. It functions as an external device capability information acquisition unit that acquires capability information of the device 10. Then, the controller 20 of the television 12 presents the stereoscopic video display method of the recording / playback apparatus 10 extracted from the external device capability information and the stereoscopic video display method of the television 12 itself, and allows the user to select the stereoscopic video display method. The transmission processing unit 21 of the television 12 functions as a display method selection unit, and functions as a selected stereoscopic video display method transmission unit that transmits the selected stereoscopic video display method information to the recording / playback apparatus 10.

  FIG. 13 is a flowchart showing communication processing and multiplexing method selection processing related to the 3D display method of the television 12 between the recording / reproducing apparatus 10 and the television 12 according to the second embodiment of the present invention. In the figure, in step S301, the process is changed depending on whether or not the reproduced video is a 3D video, and if it is a 3D video, the process proceeds to step S302, and if not, the process proceeds to step S307. In step S302, the recording / reproducing apparatus 10 notifies the television 12 of the 3D multiplexing method supported by the recording / reproducing apparatus 10. In step S303, the controller 20 of the television 12 sets 3D display information based on the 3D multiplexing method information of the recording / playback apparatus 10. Specifically, an optimum one is selected from the 3D multiplexing method supported by the recording / reproducing apparatus 10 and the capabilities of the video processing unit 23 and the display processing unit 24 in the television 12, and notified to the recording / reproducing apparatus 10 as a 3D display method. To do. At this time, the 3D display method employed by the television 12 itself may be simply selected, or the 3D display method selected by the user may be selected. In addition, when the television 12 does not support the 3D display method, it is possible to notify the recording / playback apparatus 10 which one of the right-eye video and the left-eye video is desired to be transmitted. When the recording / playback apparatus 10 acquires the 3D display method, the process proceeds to step S304. In step S304, it is determined whether or not the television 12 supports 3D display. If it is 3D compatible, the process proceeds to step S305; otherwise, the process proceeds to S308.

  In step S305, it is determined whether or not the recording / playback apparatus 10 can convert in accordance with the 3D display method selected by the television 12. For example, when the 3D display method selected by the television 12 is a method in which the right-eye video and the left-eye video are alternately displayed for each line, the recording / playback apparatus 10 alternately displays the right-eye video and the left-eye video for each line. Judgment is made based on whether or not multiplexing is possible. If conversion is possible, the process proceeds to step S306; otherwise, the process proceeds to step S309. In step S306, the multiplexing processing unit 7 is instructed to multiplex the left-eye video and the right-eye video in accordance with the 3D display method, the arrangement order of the pixels, lines, frames, and the like on the television 12, and further the auxiliary data. To multiplex audio data. Further, a description of the multiplexing method of the left-eye video and the right-eye video and the method of discriminating between the left-eye video and the right-eye video is instructed in the InfoFrame 3D multiplex information, and the processing is terminated.

  Step S308 is a process performed when the playback video is a 3D video and the television 12 does not support 3D display, and either the left-eye video or the right-eye video is selected. At this time, if the television 12 requests the right-eye video or the left-eye video in step S303, the selection is performed according to the instruction. After selecting the video, the multiplexing processing unit 7 is instructed to handle the video as a 2D display system, and the process proceeds to step S307.

  Step S309 is processing performed when the playback video is 3D video and cannot be converted into the 3D display system of the television 12 by the recording / playback apparatus 10, and is common to the source side and the sink side of all devices compatible with 3D display. A default multiplexing method is determined in advance, and the multiplexing processing unit 7 is instructed to multiplex the left-eye video and the right-eye video by the default multiplexing method and further multiplex the audio data as auxiliary data. Further, a description of the multiplexing method of the left-eye video and the right-eye video and the method of discriminating between the left-eye video and the right-eye video is instructed in the InfoFrame 3D multiplex information, and the processing is terminated. When the default multiplexing method is selected, conversion cannot be performed with a multiplexing method suitable for the 3D display method of the television 12, so that degradation occurs when thinning is performed, but the 3D display method that cannot be supported by the recording / playback apparatus 10. Can be transmitted.

  Step S307 is processing that is performed when the playback video is not 3D video, or when the television 12 cannot perform 3D display. In accordance with the 2D display method, that is, multiplexing of one video and audio data is multiplexed as it is. Instruct part 7. In addition, a description that it is 2D video is instructed to 3D multiplex information of InfoFrame, and the process ends.

  As described above, according to the digital video data transmitting apparatus according to the second embodiment, the controller 1 functioning as a transmission processing unit and the transmission processing unit 8 are connected to each other via the HDMI cable 11 serving as a transmission path. A controller that functions as a data multiplexing method determination unit when information is output to the television 12 that is an external device and stereoscopic video display method information selected by the television 12 based on the output device information is received from the television 12 1 is configured such that the data multiplexing method of the reproduced program stream is determined by the stereoscopic video display method information received from the television 12, so that the 3D multiplexing method supported by the recording / reproducing apparatus 10 and the video processing in the television 12 are performed. It is possible to select an optimal one from the capabilities of the unit 23 and the display processing unit 24, and the 3D display method specified by the user Right-eye video in or 2D display, since the selection of the left eye video image becomes possible, thus improving the selection freedom for improving the display image of the display quality.

  Further, according to the digital video data receiving apparatus according to the second embodiment, the external device capability information acquisition unit 21 that acquires the capability information of the recording / playback device 10 from the recording / playback device 10 that is an external device, and the acquired external device A stereoscopic video display method selection unit that presents the stereoscopic video display method information of the recording / playback apparatus 10 extracted from the capability information and the stereoscopic video display method information of the television 12 itself, and allows the user to select a stereoscopic video display method from among them. Since the selected stereoscopic video display method transmission unit 21 is configured to transmit the selected stereoscopic video display method information to the recording / playback device 10 that is an external device, the 3D multiplexing method and the television that the recording / playback device 10 supports are provided. It is possible to select an optimal one from the capabilities of the video processing unit 23 and the display processing unit 24 in 12, and a 3D display method designated by the user or 2 Right-eye video in the display, since it is possible selection of the left-eye image, thereby improving the selection freedom for improving the display image of the display quality.

Embodiment 3 FIG.
In the third embodiment, a case will be described in which 3D video data is not represented by left-eye and right-eye data, but 3D video data is multiplexed in accordance with a method in which 3D video is represented by 2D video and depth information. To do. FIG. 14 is a diagram showing a 3D video multiplexing method in a method of expressing 3D video, which will be described later, with 2D video and depth information when transmitting 3D video using the HDMI cable 11 according to Embodiment 3 of the present invention. It is. In the figure, D0, D1, D2, and D3 of channel 0 represent depth information in pixel 0, pixel 1, pixel 2, and pixel 3. Y0, Y1, Y2, and Y3 of channel 1 are luminance data in pixel 0, pixel 1, pixel 2, and pixel 3, and Cb0, Cr1, Cb2, and Cr3 of channel 2 are pixel 0, pixel 1, pixel 2, and pixel 3, respectively. Represents the color difference data at.

  In addition to the first embodiment, the third embodiment is compatible with the 2D video and depth information method as a 3D video multiplexing method, and the video data expression method is R , G, B primary color data is changed to Y, Cb, Cr luminance / color difference data. That is, in the memory (not shown) provided in the controller 1, the video format of the program stream including the 2D video and the method based on the depth information, the stereoscopic video display system and the image display capability of the television 12, and the corresponding multiplexing system In addition, a table indicating a suitable combination of the thinning methods is stored. The expression method using Y, Cb, and Cr is a method often used in package media such as broadcast, DVD, Blu-ray Disc, and the 4: 4: 4 method that handles luminance data and color difference data without thinning out. There are a 4: 2: 2 method for thinning out color difference data in half with respect to luminance data, and a 4: 2: 0 method for further thinning out. FIG. 14 shows a case in which the color difference data is thinned out and expressed by the 4: 2: 2 method. If expressed in this way, the data amount for one channel can be reduced as compared with the expressing method using R, G, and B primary color data. Therefore, by assigning depth information to channel 0 and transmitting it, luminance data and In addition to 2D video expressed using color difference data, depth information can be transmitted simultaneously. In package media such as broadcast, DVD, Blu-ray Disc, etc., the 4: 2: 2 method and 4: 2: 0 method are usually used. Therefore, as shown in FIG. No deterioration occurs.

  FIG. 15 is a diagram illustrating a method of expressing a 3D video with 2D video and depth information. In the figure, the 2D video is a 2D video including luminance and color information, and the depth information represents information regarding the depth of the pixel as depth information. The depth information is expressed from 0 (black) to 255 (white), indicating that 255 is located at the forefront, and 0 indicates that it is the farthest. By displaying the 2D video with depth information added, the 3D video can be expressed.

  As described above, according to the transmission method of the stereoscopic image display data according to the third embodiment, when transmitting the 3D image expressed by using the 2D image and the depth information from the recording / reproducing apparatus 10 to the television 12. In addition to the 3D video format expressed by the video for the right eye and the video for the left eye using the transmission path of the HDMI cable 11, 2D video and depth information can be transmitted simultaneously, so that the video for the right eye and the video for the left eye can be transmitted. In addition to the 3D video system expressed as described above, 3D video expressed using 2D video and depth information can be transmitted without degradation or with minimal degradation.

It is a block diagram which shows the structural example of the digital video data transmitter in Embodiment 1 of this invention, a digital video data receiver, and a digital video data transmission system. It is a signal block diagram in the transmission path | route in Embodiment 1 of this invention. It is the figure which showed the 3D display system which displays the image | video for left eyes and the image | video for right eyes alternately in pixel unit in Embodiment 1 of this invention. It is the figure which showed the 3D display system which displays alternately the image | video for left eyes and the image | video for right eyes in Embodiment 1 of this invention per line. It is the figure which showed the 3D display system which displays alternately the image | video for left eyes and the image | video for right eyes in Embodiment 1 of this invention per frame. It is the figure which showed the data sequence which multiplexed the image for left eyes and the image for right eyes in Embodiment 1 of this invention per pixel. It is the figure which showed the data sequence which multiplexed the video for left eyes and the video for right eyes in Embodiment 1 of this invention per line. It is the figure which showed the data sequence which multiplexed the image | video for left eyes and the image | video for right eyes in Embodiment 1 of this invention per frame. It is the figure which showed the structural example of VSDB in Embodiment 1 of this invention. It is the figure which showed the structural example of AVI InfoFrame in Embodiment 1 of this invention. It is the flowchart which showed the multiplexing system selection process in Embodiment 1 of this invention. It is the flowchart which showed the separation selection process in Embodiment 1 of this invention. It is the flowchart which showed 3D display system communication and the multiplexing system selection process in Embodiment 2 of this invention. It is the figure which showed the data sequence which multiplexed 2D image | video and depth information in Embodiment 3 of this invention. It is the figure which showed the method of expressing 3D image | video by 2D image | video and depth information in Embodiment 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Controller (data multiplexing system determination part), 2 Tuner, 3 Recording processing part, 4 Program storage area (recording medium), 5 Optical drive (recording medium), 6 Reproduction processing part (program stream reproduction part), 7 Multiplexing Processing unit (data multiplexing unit), 8 transmission processing unit (external device information acquisition unit), 10 recording / playback device (digital video data transmission device),
11 HDMI cable (transmission path),
12 TV (digital video data receiving device), 20 controller (stereoscopic video display method selection unit), 21 transmission processing unit (receiving device information output unit, external device capability information acquisition unit, selected stereoscopic video display method transmission unit), 22 separation Processing unit (multiplexed information extraction unit), 23 video processing unit, 24 display processing unit, 25 display device, 26 audio output processing unit, 27 speaker.

Claims (12)

A digital video data transmitting apparatus that transmits video data using an interface standard that individually transmits pixel data as primary color data for each color,
An external device information acquisition unit for acquiring device information of an external device connected to the device via a transmission path using the interface standard;
A program stream playback unit for playing back a program stream;
When the program stream played back by the program stream playback unit is a stereoscopic video system, the stereoscopic video display system information of the external device is extracted from the device information of the external device, and is adapted to the extracted stereoscopic video display system information. A data multiplexing method determining unit for determining a data multiplexing method of the reproduced program stream;
A data multiplexing unit that multiplexes the data of the reproduced program stream according to the multiplexing method determined by the data multiplexing method determination unit;
A transmission processing unit that outputs data of a program stream multiplexed by the data multiplexing unit via the transmission path;
A digital video data transmitting apparatus comprising: 2. The digital video data transmitting apparatus according to claim 1, wherein the data multiplexing unit adds the information of the multiplexing method to the multiplexed program stream data. The data multiplexing method determination unit extracts the image display capability information of the external device from the device information of the external device, and sets a data thinning method of the reproduced program stream so as to conform to the extracted image display capability information. Decide
3. The digital video data transmitting apparatus according to claim 1, wherein the data multiplexing unit thins out the reproduced program stream data according to the determined thinning method, and then multiplexes the data. 4. The digital video data transmitting apparatus according to claim 3, wherein the thinning-out method thins out the right-eye video data and the left-eye video data of the reproduced program stream so as to have a half size. The transmission processing unit outputs device information of the device to the external device via the transmission path,
When the 3D image display method information selected by the external device based on the output device information is received from the external device, the data multiplexing method determining unit is configured to use the data multiplexing method of the reproduced program stream. 5. The digital video data transmitting apparatus according to claim 1, wherein the digital video data transmitting apparatus is determined based on multiplexing method information received from the external device. A digital video data receiving device that receives video data using an interface standard that individually transmits pixel data as primary color data for each color,
A receiving device information output unit for transmitting device information of the device to an external device connected to the device via a transmission path using the interface standard;
A separation processing unit that separates data of a program stream transmitted from the external device;
A multiplexed information extraction unit for extracting multiplexed information from the separated data;
When the video data is a stereoscopic video system, a video processing unit that processes the separated video data for stereoscopic video display based on the multiplexed information extracted by the multiplexed information extraction unit;
A digital video data receiving apparatus comprising: An external device capability information acquisition unit for acquiring capability information of the external device from the external device;
A stereoscopic video display method selection unit that presents the stereoscopic video display method information of the external device extracted from the acquired external device capability information and the stereoscopic video display method information of the device, and selects a stereoscopic video display method from the information. ,
A selected stereoscopic video display method transmission unit for transmitting the selected stereoscopic video display method information to the external device;
The digital video data receiver according to claim 6, comprising: A digital video data transmitting apparatus according to any one of claims 1 to 5;
The digital video data receiving device according to claim 6 or 7 connected to the digital video data transmitting device via a transmission path using an interface standard that individually transmits video data as primary color data of each color in units of pixels,
A digital video data transmission system comprising: 9. The digital video data transmission system according to claim 8, wherein the interface standard is a high definition multimedia interface (HDMI) standard. A digital video data transmission method for transmitting video data by using an interface standard for individually transmitting pixel data as primary color data for each color,
An external device information acquisition step of acquiring device information of an external device connected to the device via a transmission path using the interface standard;
A program stream playback step for playing back a program stream;
When the program stream reproduced in the program stream reproduction step is a stereoscopic video system, the stereoscopic video display system information of the external device is extracted from the device information of the external device, and is adapted to the extracted stereoscopic video display system information. A data multiplexing method determining step for determining a data multiplexing method of the reproduced program stream;
A data multiplexing step for multiplexing the data of the reproduced program stream according to the multiplexing method determined in the data multiplexing method determination step;
A transmission processing step of outputting data of the program stream multiplexed in the data multiplexing step via the transmission path;
A digital video data transmission method comprising: A digital video data receiving method for receiving video data using an interface standard for individually transmitting pixel data as primary color data for each color,
A receiving device information output step of transmitting device information of the device to an external device connected to the device via a transmission path using the interface standard;
A separation processing step for separating data of a program stream transmitted from the external device;
A multiplexed information extracting step for extracting multiplexed information from the separated data;
When the video data is a stereoscopic video system, a video processing step for processing the separated video data for stereoscopic video display based on the multiplexed information extracted in the multiplexed information extracting step;
A digital video data receiving method comprising: The digital video data transmission method according to claim 10 and the digital video data reception method according to claim 11, via a transmission path using an interface standard that individually transmits video data as primary color data of each color in units of pixels. ,
Digital video data transmission method that performs.

Images