JP2012156950A - Video reproducer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video reproducer which can reproduce a three-dimensional video and with which a plurality of users can simultaneously view different images on a large screen by using one display device.SOLUTION: STB4 includes: a video control portion 13 controlling reproduction of the video on a display screen 5D; and a glasses control section 15 controlling a translucent state and a shielding state of both eyes of the glasses 7A and 7B. The video control section 13 displays the video of a content CA on the display screen 5D at first timing, and displays the video of a content CB on the display screen 5D at second timing. The glasses control section 15 sets both eyes of the glasses 7A in the translucent state and both eyes of the glasses 7B in the shielding state at the first timing, and sets both the eyes of the glasses 7B in the translucent state and both the eyes of the glasses 7A in the shielding state at the second timing.

Description

  The present invention relates to a video playback device, and more particularly to a video playback device capable of playing back 3D video.

  For example, Patent Document 1 below discloses a video display device that allows a user to view a three-dimensional video on a display screen by wearing dedicated glasses having liquid crystal shutters in both eyes. In the video display device, the left-view video and the right-view video are alternately displayed on the display screen at a predetermined cycle. Then, by controlling the liquid crystal shutter, the left eye of the glasses is in a translucent state and the right eye is in a light-shielded state in synchronization with the display timing of the left-view image, and the glasses are synchronized in synchronization with the display timing of the right-view image. A three-dimensional image is displayed on the display screen by setting the right eye to a light-transmitting state and the left eye to a light-shielding state.

Japanese Patent No. 3273074

  When a plurality of users view different videos at the same time using a single display device, it is necessary to divide the display screen into a plurality of small screens and reproduce each video on each small screen. Accordingly, each user cannot view powerful video on the large screen, and thus the convenience for the user is low.

  The present invention has been made in view of such circumstances, and in a video playback apparatus capable of playing back 3D video, a plurality of users can simultaneously view different videos on a large screen using a single display device. The object is to obtain a possible video reproduction device.

  The video playback apparatus according to the first aspect of the present invention alternately displays a left-view video and a right-view video on the display screen, and transmits the left eye of the glasses in synchronization with the display timing of the left-view video. Video playback that enables playback of 3D video by setting the light state, the right eye to the light-shielded state, and synchronizing the right-eye video display timing with the right eye of the glasses to the light-transmitting state and the left eye to the light-shielded state An image control unit that controls reproduction of an image on the display screen; and an eyeglass control unit that controls a translucent state and a light-shielding state of both eyes of the glasses. The video of the first content is displayed on the display screen at the timing 1, the video of the second content different from the first content is displayed on the display screen at the second timing, and the glasses controller In the first timing, the first Both eyes of the mirror are in a light-transmitting state, both eyes of the second spectacles are in a light-shielding state, both eyes of the second spectacles are in a light-transmitting state, and both eyes of the first spectacles are shielded at the second timing. It is characterized by being in a state.

  According to the video reproduction device according to the first aspect, the video control unit displays the video of the first content on the display screen at the first timing, and the second different from the first content at the second timing. Display content video on the display screen. In addition, the spectacles control unit sets both eyes of the first spectacles to the light-transmitting state and both eyes of the second spectacles to the light-shielding state at the first timing, and transmits both eyes of the second spectacles at the second timing. The light state and both eyes of the first spectacles are set to the light shielding state. Therefore, the first user who desires to view the first content video views the first content video displayed on the entire display screen at the first timing by wearing the first glasses. be able to. In addition, at the second timing when the video of the second content is displayed, both eyes of the first glasses are in a light-shielded state. Therefore, since the first user cannot see the video of the second content, the video of the second content can be prevented from obstructing viewing of the video of the first content. Similarly, the second user who wants to view the video of the second content views the video of the second content displayed on the entire display screen at the second timing by wearing the second glasses. can do. In addition, at the first timing when the video of the first content is displayed, both eyes of the second glasses are in a light-shielded state. Therefore, since the video of the first content cannot be seen by the second user, it can be avoided that the video of the first content hinders viewing of the video of the second content. As described above, according to the video reproduction device according to the first aspect, it is possible for a plurality of users to simultaneously view videos of different contents on a large screen using a single display device.

  The video reproduction device according to the second aspect of the present invention is the video reproduction device according to the first aspect, particularly for transmitting the sound of the first content to the first glasses and the sound of the second content. Is further provided with a voice control unit that transmits the second spectacles to the second glasses.

  According to the video reproduction device according to the second aspect, the audio control unit transmits the audio of the first content to the first glasses and transmits the audio of the second content to the second glasses. Therefore, the first user can hear the sound of the first content using the earphone attached to the first glasses. Similarly, the second user can hear the sound of the second content using the earphone attached to the second glasses. In addition, each of the plurality of users listening to the sound using the earphone can prevent the sound of the content being viewed by each user from interfering with the viewing of the other content by another user.

  The video playback apparatus according to the third aspect of the present invention is the video playback apparatus according to the first or second aspect, in particular, the video of the first content is a video of one player viewpoint in a competitive game. The video of the second content is a video of another player's viewpoint in the competitive game.

  According to the video playback apparatus according to the third aspect, the video of the first content is a video from one player's viewpoint in the competitive game, and the video of the second content is another player's viewpoint in the competitive game. It is an image of. Therefore, when a plurality of users play a competitive game using one display device, each player's viewpoint video is displayed on the full screen, so each player uses a powerful video to play a competitive game. A game can be played.

  The video playback apparatus according to the fourth aspect of the present invention is the video playback apparatus according to the first or second aspect, in particular, the video of the first content is a video of the first program, and the second The content video is a video of a second program different from the first program.

  According to the video playback device of the fourth aspect, the video of the first content is the video of the first program, and the video of the second content is the second program different from the first program. It is a picture. Therefore, when a plurality of users view a plurality of programs using a single display device, all the videos viewed by each user are displayed on the full screen, so that each user uses powerful images. The program can be viewed.

  According to the present invention, in a video playback device capable of playing back 3D video, a plurality of users can simultaneously view different videos on a large screen using a single display device.

It is a figure which shows the whole structure of the video delivery system which concerns on embodiment of this invention. It is a block diagram which simplifies and shows the structure of STB. It is a figure which shows the process of STB in the case of reproducing | regenerating the content of a three-dimensional video on a television. It is a figure which shows the process of STB in the case of carrying out composite reproduction of two contents on a television. It is a figure which shows the whole structure of the video delivery system in the case of carrying out composite reproduction of four contents. It is a figure which shows the process of STB in the case of carrying out a composite reproduction of four contents on a television.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the element which attached | subjected the same code | symbol in different drawing shall show the same or corresponding element.

  FIG. 1 is a diagram showing an overall configuration of a video distribution system 1 according to an embodiment of the present invention. As shown in FIG. 1, a video distribution system 1 includes a server 2 as a video distribution device, a communication network 3 such as an IP (Internet Protocol) network, an STB (Set Top Box) 4 as a video reproduction device, and a liquid crystal display. The apparatus includes a television 5 such as a device and glasses 7 (reference numerals 7A and 7B in FIG. 1) worn by a user to view a 3D video. The television 5 has a display screen 5D and a speaker 5S. The glasses 7A have an earphone 9A, a left eye 8AL, and a right eye 8AR, and the glasses 7B have an earphone 9B, a left eye 8BL, and a right eye 8BR. Note that the function of the STB 4 may be built in the television 5.

  The server 2 transmits the video signal and audio signal of the content to the STB 4 via the communication network 3. The STB 4 performs processing such as decoding on the received video signal and audio signal. The STB 4 reproduces video and audio on the television 5 by transmitting the video signal and the audio signal to the television 5. On the display screen 5D of the television 5, it is possible to display a 2D video and a 3D video. When viewing 3D video, the user wears glasses 7.

  FIG. 2 is a block diagram showing a simplified configuration of the STB 4. As shown in the connection relationship of FIG. 2, the STB 4 includes a command receiving unit 11, a mode setting unit 12, a video control unit 13, a video transmission unit 14, a glasses control unit 15, a control signal transmission unit 16, an audio control unit 17, and An audio transmission unit 18 is provided.

  FIG. 3 is a diagram illustrating the processing of STB 4 when reproducing the content of the 3D video on the television 5. Referring to FIG. 2, the command receiving unit 11 receives a command signal S0 that designates playback of 3D video from, for example, a remote controller (not shown). The command receiving unit 11 inputs the received command signal S0 to the mode setting unit 12. The mode setting unit 12 inputs a control signal S1 for designating the reproduction of the 3D video to the video control unit 13, the spectacles control unit 15, and the audio control unit 17.

  The video control unit 13 inputs the video signal S <b> 2 of the 3D video content to the video transmission unit 14. The video transmission unit 14 transmits the input video signal S <b> 2 toward the television 5. When reproducing 3D video, a left-view video and a right-view video reflecting human binocular parallax have a predetermined cycle (for example, a 1/120 second cycle. Left-view image and right-view image). The frame rate is 60 fps because one frame is composed of a pair of and. In the example shown in FIG. 3, the left-view video F0L of the 0th frame, the right-view video F0R of the 0th frame, the left-view video F1L of the first frame, the right-view video F1R of the first frame, the second The display screen of the television 5 includes a left-view image F2L for the frame, a right-view image F2R for the second frame, a left-view image F3L for the third frame, a right-view image F3R for the third frame, and so on. Displayed in 5D.

  The spectacles control unit 15 inputs a control signal S3 for controlling a liquid crystal shutter incorporated in each of the left eyes 8AL and 8BL and the right eyes 8AR and 8BR of the spectacles 7A and 7B to the control signal transmission unit 16. The control signal transmission unit 16 wirelessly transmits the control signal S3 toward the glasses 7A and 7B. As shown in FIG. 3, when 3D video is reproduced, the glasses for left vision F0L, F1L, F2L, F3L,... Of each frame are synchronized with the display timing of the display screen 5D. The left eyes 8AL and 8BL of 7A and 7B are in a translucent state (ON), and the right eyes 8AR and 8BR are in a light-shielded state (OFF), and the right-view images F0R, F1R, F2R, F3R,. In synchronization with the timing of display on the display screen 5D, the right eyes 8AR and 8BR of the glasses 7A and 7B are in a light-transmitting state (ON) and the left eyes 8AL and 8BL are in a light-shielding state (OFF).

  The audio control unit 17 inputs the audio signal S4 of the content to the audio transmission unit 18. The audio transmission unit 18 transmits the input audio signal S4 toward the television 5. Thereby, the sound of the content is output from the speaker 5S of the television 5. Even when the 3D video is reproduced, the audio transmission unit 18 transmits the audio signal S4 toward the glasses 7A and 7B, so that the audio is output from the earphones 9A and 9B of the glasses 7A and 7B. Also good.

  FIG. 4 is a diagram showing the processing of STB 4 when two contents are combined and reproduced on the television 5. Here, “composite playback” means that the content that one user wants to watch and another content that another user wants to watch are played simultaneously on the television 5. In the present embodiment, a case where the user UA views the content CA and the user UB views the content CB will be described as an example. When performing composite reproduction, the user UA wears the glasses 7A, and the user UB wears the glasses 7B.

  For example, when playing a competitive video game between the user UA and the user UB, the video from one player viewpoint of the competitive game is the content CA, and the video from the other player viewpoint is the content. There is a usage mode called CB. However, the game is not limited to a competitive game, and a plurality of users can simultaneously play different kinds of games, such as when the user UA plays a baseball game and the user UB plays a soccer game. In this case, the video of the game played by the user UA becomes the content CA, and the video of the game played by the user UB becomes the content CB. In addition to a video game, a plurality of users can watch a program on another channel at the same time as when a user UA views a program on a channel and a user UB views a program on another channel. . In this case, the video of the program viewed by the user UA is the content CA, and the video of the program viewed by the user UB is the content CB.

  Referring to FIG. 2, the command receiving unit 11 receives a command signal S0 designating composite reproduction from, for example, a remote controller (not shown). The command receiving unit 11 inputs the received command signal S0 to the mode setting unit 12. The mode setting unit 12 inputs a control signal S1 for designating composite reproduction to the video control unit 13, the spectacles control unit 15, and the audio control unit 17.

  The video control unit 13 inputs the video signal S2A of the content CA and the video signal S2B of the content CB to the video transmission unit 14. The video transmission unit 14 transmits the input video signals S2A and S2B toward the television 5. In the case of performing composite reproduction, the 2D video frame of the content CA and the 2D video frame of the content CB are alternately displayed on the entire display screen 5D. The frame rate of each content is, for example, 60 fps. In the example shown in FIG. 4, the video F0A of the 0th frame of the content CA, the video F0B of the 0th frame of the content CB, the video F1A of the first frame of the content CA, the video F1B of the first frame of the content CB, and the content CA The second frame video F2A, the content CB second frame video F2B, the content CA third frame video F3A, the content CB third frame video F3B,... Displayed in 5D.

  The glasses controller 15 is incorporated in each of the left eye 8BL and the right eye 8BR of the glasses 7B, and the control signal S3A for controlling the liquid crystal shutter incorporated in each of the left eye 8AL and the right eye 8AR of the glasses 7A. A control signal S3B for controlling the liquid crystal shutter is input to the control signal transmitter 16. The control signal transmitter 16 wirelessly transmits the control signal S3A toward the glasses 7A, and wirelessly transmits the control signal S3B toward the glasses 7B. As shown in FIG. 4, in the case of performing composite reproduction, the left eye 8AL of the glasses 7A and the eye FAL of the glasses 7A are synchronized with the timing of displaying the images F0A, F1A, F2A, F3A,. The right eye 8AR is in a translucent state (ON), the left eye 8BL and the right eye 8BR of the glasses 7B are in a light shielding state (OFF), and the images F0B, F1B, F2B, F3B,. In synchronization with the display timing, the left eye 8BL and the right eye 8BR of the glasses 7B are in a translucent state (ON), and the left eye 8AL and the right eye 8AR of the glasses 7A are in a light shielding state (OFF).

  The audio control unit 17 inputs the audio signal S4A of the content CA and the audio signal S4B of the content CA to the audio transmission unit 18. The audio transmission unit 18 transmits the audio signal S4A toward the glasses 7A, and transmits the audio signal S4B toward the glasses 7B. Thereby, the sound of the content CA is output from the earphone 9A of the glasses 7A, and the sound of the content CB is output from the earphone 9B of the glasses 7B.

  In the above description, an example in which two contents are combined and reproduced has been described, but three or more contents can be combined and reproduced. FIG. 5 is a diagram showing an overall configuration of the video distribution system 1 in the case where four contents are combined and reproduced. The video distribution system 1 includes four glasses 7A to 7D. The glasses 7C have an earphone 9C, a left eye 8CL, and a right eye 8CR, and the glasses 7D have an earphone 9D, a left eye 8DL, and a right eye 8DR.

  FIG. 6 is a diagram showing the processing of the STB 4 when the four contents are combined and reproduced on the television 5. In this example, a case where the user UA views the content CA, the user UB views the content CB, the user UC views the content CC, and the user UD views the content CD will be described as an example. When performing composite reproduction, the user UA wears the glasses 7A, the user UB wears the glasses 7B, the user UC wears the glasses 7C, and the user UD wears the glasses 7D.

  In the example shown in FIG. 6, the 0th frame video F0A of the content CA, the 0th frame video F0B of the content CB, the 0th frame video F0C of the content CC, the 0th frame video F0D of the content CD, and the content CA. The first frame image F1A, the first frame image F1B of the content CB, the first frame image F1C of the content CC, the first frame image F1D of the content CD,... Displayed in 5D.

  .. In synchronism with the timing at which the images F0A, F1A,... Of the content CA are displayed on the display screen 5D, both eyes of the glasses 7A are in a translucent state (ON), and both eyes of the other glasses 7B, 7C, 7D. Are in a light-shielded state (OFF), and in synchronization with the timing at which the images F0B, F1B,... Of the content CB are displayed on the display screen 5D, both eyes of the glasses 7B are in a translucent state (ON), and the other glasses 7A , 7C, 7D are in a light-shielded state (OFF), and both eyes of the glasses 7C are in a light-transmitting state (in synchronism with the timing of displaying the images F0C, F1C,... Of the content CC on the display screen 5D). ON), both eyes of the other glasses 7A, 7B, 7D are in a light-shielded state (OFF), and the glasses 7D are synchronized with the timing of displaying the images F0D, F1D,... Of the content CD on the display screen 5D. Both eyes are translucent State (ON), other glasses 7A, 7B, the both eyes of 7C is a light shielding state (OFF).

  Further, the sound of the content CA is output from the earphone 9A of the glasses 7A, the sound of the content CB is output from the earphone 9B of the glasses 7B, the sound of the content CC is output from the earphone 9C of the glasses 7C, and the sound of the content CD is the glasses. Output from the 7D earphone 9D.

  As described above, according to the STB 4 according to the present embodiment, the video control unit 13 displays the 2D video of the content CA on the display screen 5D at the first timing, and the 2D video of the content CB at the second timing. Is displayed on the display screen 5D. Further, the spectacles control unit 15 sets both eyes of the spectacles 7A in the light-transmitting state and the both eyes of the spectacles 7B in the light-shielding state at the first timing, and transmits both eyes of the spectacles 7B in the light-transmitting state at the second timing. Both eyes of the glasses 7A are in a light-shielded state. Therefore, the user UA who desires to view the content CA can view the video of the content CA displayed on the entire display screen 5D at the first timing by wearing the glasses 7A. Further, at the second timing when the video of the content CB is displayed, both eyes of the glasses 7A are in a light-shielded state. Accordingly, since the video of the content CB cannot be seen by the user UA, it can be avoided that the video of the content CB hinders viewing of the video of the content CA. Similarly, the user UB who desires to watch the video of the content CB can watch the video of the content CB displayed on the entire display screen 5D at the second timing by wearing the glasses 7B. Further, at the first timing when the video of the content CA is displayed, both eyes of the glasses 7B are in a light shielding state. Accordingly, since the video of the content CA cannot be seen by the user UB, it can be avoided that the video of the content CA hinders viewing of the video of the content CB. As described above, according to the STB 4 according to the present embodiment, it is possible for a plurality of users to simultaneously view different videos on a large screen using a single television 5.

  Further, according to STB4 according to the present embodiment, audio control unit 17 transmits audio signal S4A related to content CA to glasses 7A, and transmits audio signal S4B related to content CB to glasses 7B. Therefore, the user UA can listen to the sound related to the content CA using the earphone 9A attached to the glasses 7A. Similarly, the user UB can listen to the sound related to the content CB using the earphone 9B attached to the glasses 7B. In addition, since each of the plurality of users UA and UB listens to the sound using the earphones 9A and 9B, it is possible to prevent the sound of the video that each user is viewing from hindering another user from viewing another video. .

  Further, according to the STB 4 according to the present embodiment, for example, the video of the content CA is a video from one player viewpoint in the competitive game, and the video of the content CB is a video from another player viewpoint in the competitive game. It is. Therefore, when a plurality of users UA, UB play a battle game using one television 5, all the videos from the viewpoints of the players are displayed on the entire screen of the display screen 5D. It is possible to play a battle-type game using a certain video.

  Further, according to the STB 4 according to the present embodiment, for example, the video of the content CA is the video of the first program, and the video of the content CB is the video of the second program different from the first program. is there. Therefore, when a plurality of users UA and UB watch a plurality of programs using one television 5, all the videos viewed by each user are displayed on the entire screen of the display screen 5D. The program can be viewed using powerful video.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined not by the above-mentioned meaning but by the scope of claims for patent, and is intended to include all modifications within the scope and meaning equivalent to the scope of claims for patent.

4 STB
5 TV 7A, 7B Glasses 8AL, 8BL Left eye 8AR, 8BR Right eye 13 Video control unit 15 Glasses control unit 17 Audio control unit

Claims (4)

Left-view video and right-view video are alternately displayed on the display screen, and in sync with the display timing of the left-view video, the left eye of the glasses is in a translucent state and the right eye is in a light-shielded state. In a video playback device capable of playing back 3D video by setting the right eye of the glasses in a translucent state and the left eye in a light-shielded state in synchronization with the display timing of
A video control unit for controlling playback of video on the display screen;
Glasses control unit for controlling the translucent state and the light shielding state of both eyes of the glasses;
With
The video control unit displays a first content video on the display screen at a first timing, and displays a second content video different from the first content on the display screen at a second timing. ,
The spectacles control unit sets both eyes of the first spectacles in a light-transmitting state and both eyes of the second spectacles in a light-shielding state at the first timing, and both eyes of the second spectacles at the second timing. Is a light-transmitting state, and both eyes of the first glasses are in a light-shielding state.   The video reproduction device according to claim 1, further comprising: an audio control unit that transmits audio of the first content to the first glasses and transmits audio of the second content to the second glasses.   The video of the first content is a video from one player viewpoint in the competitive game, and the video of the second content is a video from another player viewpoint in the competitive game. The video playback device described in 1.   The video of the first content is a video of a first program, and the video of the second content is a video of a second program different from the first program. The video playback device described.

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