JP2010102053A - Video generating device and video display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display the videos of two screens which make a video displayed in a video display device, such as a broadcasting signal as a main-screen image and a video generated in the external part as a sub-screen video, on a one-screen with automatically and optimally designed layout, without changing the structure of the inner part of a display device. <P>SOLUTION: The video display device 100 is configured to select any one of video signals input from an antenna terminal 101 and external input terminals 102 to 104 so as to form a main-screen video. The video generating device 200 is configured to generate a video signal to be displayed at the video display device 100 as a sub-screen video and supply the video signal to a sub-screen input terminal 105, simultaneously, send a control signal to a command input/output terminal 106 and control the display method of the main screen of the video display device 100. Accordingly, the video display device 100 can display the video where the sub-screen video input to the sub-screen input terminal 105 is synthesized with the main-screen video, on the display panel 128, as one-screen image with the automatically and optimally designed layout. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a video generation device and a video display device, and in particular, a video generation device that generates a video signal of a sub-screen displayed simultaneously with a video of a main screen in one screen, and the video generation device. The present invention relates to a video display device that displays a video signal on a sub screen simultaneously with a main screen video.

  In general, a television receiver not only displays a video of a broadcast program, but also outputs a video signal output from a recording / playback device such as a DVD (Digital Versatile Disc) recorder, a PC (personal computer), or a home game machine. It can be displayed by inputting via an external input terminal. Furthermore, TV receivers display not only the above-mentioned images but also images of various information terminals such as doorphones with a TV monitor function (hereinafter simply referred to as doorphones) and videophones.

  However, when displaying video output from various information terminals, the user does not necessarily display the TV broadcast video and the playback video of the recording / playback apparatus that have been displayed so far, and output them from the various information terminals. In many cases, it is not desired to switch to a video for display. For example, if a user is notified from a door phone that someone has arrived at the front door, the user can see the video at the front door while continuing to watch the video of the TV broadcast or the playback of the recording / playback device that he was currently watching. Is good. In addition, even in the case of an information terminal that acquires and displays news and weather forecast information from the Internet, the user does not erase the TV broadcast image that is being displayed, and the user can update the news and weather forecast output from the information terminal. It is better to see information.

  Therefore, recently, a television receiver having a two-screen simultaneous display function capable of simultaneously watching a plurality of broadcast program videos or watching a video input from an external input terminal while watching the broadcast program videos. (For example, refer to Patent Document 1 and Non-Patent Document 1). Patent Document 1 discloses a video display device that displays a main screen and an auxiliary screen in an easy-to-see manner by switching the screen size when displaying two screens. Non-Patent Document 1 discloses a video display system in which a video output from a doorphone can be viewed simultaneously with a video of a broadcast program.

JP 2005-20743 A Matsushita Electric Industrial Co., Ltd., TV door phone general catalog (2008 spring)

  However, in the conventional video display device and video display system described in Patent Document 1 and Non-Patent Document 1, when two screens are displayed with PinP (Picture in Picture), one screen is one of the other screens. The part is hidden and the whole cannot be displayed. In addition, when displaying two screens separately, it is difficult to display in accordance with the size of the display screen, for example, there is an area that is not used for display at the edge of the screen of the video display device.

  Further, in the conventional video display device described in Patent Document 1, it is difficult to perform asynchronous input switching because the user specifies the position and size of screen switching and two-screen display with a remote controller or switch. For example, when a doorphone is connected to the external input terminal, the user always sets the two-screen mode to continue watching the broadcast program video and the video from the doorphone at the same time, or when the doorphone chime sounds, the remote control displays two screens. Need to switch to mode.

On the other hand, in the conventional video display system described in Non-Patent Document 1, if an application for a specific doorphone is installed in a television receiver, the video of the doorphone can be automatically viewed without instructing the remote controller. Can do. However, in order to realize this, it is necessary to incorporate an application for a specific door phone in the television receiver. In order to support various doorphones and recording / playback apparatuses (hereinafter referred to as video generation apparatuses), it is necessary to develop an application for each video generation apparatus and incorporate it into a television receiver. Also, in this case, the television receiver needs to know the video size of the video output from the video generation device in advance, and it is necessary to modify the television application every time the video output specification of the video generation device changes.

  The present invention has been made in view of the above points, and does not change the internal structure of a display device, such as a video that has already been displayed, such as a video of a broadcast program, and a video that is newly input from the outside. Another object of the present invention is to provide a video generation device and a video display device that can automatically perform optimal layout and display on a single screen.

  In order to achieve the above object, a video generation device according to a first aspect of the present invention is a video generation means for generating a video signal to be displayed as a sub-screen video by a video display device, and the video display device is a main screen. Command receiving means for acquiring status information of a display device including at least information on the aspect ratio of the video signal to be displayed as video, and event processing means for generating a video signal to be displayed as a sub-screen video on the video generation means based on the event Based on the status information of the display device, the video signal to be displayed as the sub-screen video generated by the video generation means is processed so as to have a predetermined layout relationship with the main screen video displayed by the video display device. Screen layout information including the position and size information of the main screen video and the sub screen video of the video display device as well as outputting the screen video signal to the video display device. And a command generation unit for generating a command for controlling the position and size of the main screen video and the sub screen video displayed by the video display device based on the screen layout information and outputting the command to the video display device And means.

  In order to achieve the above object, the video generation apparatus according to the second aspect of the invention provides the command receiving means according to the first aspect of the invention from the video display apparatus with information indicating that the video display apparatus has been operated by the remote controller. The remote control event signal is further provided with a function of receiving a remote control event signal from the video display device. When the remote control event signal is input from the command receiving means, the video configuration means generates screen layout information corresponding to the remote control event signal. It is characterized by having a configuration.

  In order to achieve the above object, a video display device according to a third aspect of the present invention is a video display device including a display unit for displaying a video signal, which is generated by an external input video signal input from the outside and the video display device itself. Input state management means for making one video signal selected from the generated video signals to be displayed as a video signal to be displayed as the main screen video, and first information including information for controlling the video display layout in the video display device itself. And a command transmission / reception means for transmitting a second command including status information of the display device including at least the aspect ratio of the main screen image displayed by the image display device itself, and a video signal to be displayed as a sub-screen image Sub-screen video receiving means for receiving the video size and the video size to be displayed as the main screen video based on the received first command The main screen video converting means for determining the display position and generating the main screen video signal subjected to the scan conversion, and the video size and the video size to be displayed as the sub screen video based on the received first command A sub main screen video converting means for determining a display position and generating a sub screen video signal subjected to scan conversion, and generating a composite video signal by combining the main screen video signal and the sub screen video signal, and supplying them to the display unit And a screen compositing means.

  In order to achieve the above object, a video display device according to a fourth aspect of the present invention includes a control signal receiving means for receiving a control signal from the outside in addition to the configuration of the third aspect of the invention, and the control signal includes a main screen video. A signal indicating an event based on the control signal for the sub-screen image distributed by the control signal distribution unit and the control signal distribution unit that distributes according to whether the control signal is for the sub-screen image or the control signal for the sub-screen image And transmitting means for generating and transmitting to the external device.

  According to the present invention, two images, an image already displayed such as a broadcast program image and an image newly input from outside, are automatically optimized without changing the internal structure of the display device. The layout can be displayed on a single screen.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a configuration diagram of an entire system including a video generation device and a video display device according to the present invention. In the figure, the video display apparatus 100 has a broadcast receiving antenna terminal 101, external input terminals 102 to 104, a sub-screen input terminal 105, and a command input / output terminal 106, and an antenna 350 is connected to the antenna terminal 101. ing. In the video display device 100, a DVD player 300 is connected to the external input terminal 102, and a game machine 310 is connected to the external input terminal 103. The DVD player 300 is a playback device that plays back an information signal including video recorded on a DVD. The external input terminals 102 to 104 include many types of standardized terminals such as composite terminals, S terminals, component terminals, D terminals, and HDMI terminals. The video display device 100 selects any one of the video signals input from the antenna terminal 101 and the external input terminals 102 to 104 by a signal from the TV remote controller 190 and displays it on the display panel 128 as a main screen video. To do.

  The video generation device 200 is connected to the video display device 100 via a sub-screen input terminal 105 and a command input / output terminal 106. The video generation device 200 generates a video signal to be displayed as a sub-screen on the display panel 128 of the video display device 100 and supplies it to the sub-screen input terminal 105, and simultaneously sends a control signal to the command input / output terminal 106 to display the video. The display method of the main screen of the apparatus 100 is controlled.

  Next, the configuration and operation of each embodiment of the video generation device 200 and the video display device 100 illustrated in FIG. 1 will be described.

(First embodiment)
2 is a block diagram of a first embodiment of a video generation apparatus according to the present invention, FIGS. 3 to 7 are diagrams for explaining the operation of the video generation apparatus, and FIG. 8 is a video display apparatus according to the present invention. The block diagram of 1st Embodiment of this is shown. A video generation apparatus 200a according to the first embodiment illustrated in FIG. 2 is a video generation apparatus corresponding to the video generation apparatus 200 illustrated in FIG. The video display device 100a according to the first embodiment shown in FIG. 8 is a video display device corresponding to the video display device 100 shown in FIG.

  First, the video generation device 200a will be described. As shown in FIG. 2, the video generation device 200a includes an event processing unit 201 that processes an event that triggers an update of video display, a video generation unit 202 that generates a video signal to be displayed, and a video configuration that lays out the generated video. Unit 203, a command communication unit 206 that communicates with a command communication unit 123 of the video display device 100a described later, and a command reception unit 204 that receives a command for acquiring display state information of the video display device 100a from the command communication unit 206, The command generation unit 205 generates a command for notifying the layout of the main screen, a video output terminal 210, and a command input / output terminal 211.

  The conventional video generation apparatus is configured to generate a video signal and simply output the video, like the DVD player 300 and the game machine 310 shown in FIG. That is, as described with reference to the block diagram of FIG. 2, the image generation unit 202 and the image output terminal 210 alone are included. On the other hand, in the video generation device 200a of the present embodiment, the event processing unit 201, the video configuration unit 203, the command communication unit 206, the command reception unit 204, and the command generation unit 205 are added to the conventional video generation device. Has been. The video output terminal 210 is connected to the sub-screen input terminal 105 of the video display device 100a, and the command input / output terminal 211 is connected to the command input / output terminal 106 of the video display device 100a.

  Here, the “event” is an event that causes the video generation apparatus 200a to generate a video signal. Examples of event and video generation triggered by the event include (1) generation of doorphone video by a doorphone chime press event, and (2) message video of selection end event from a selection device connected to the network. Generation, (3) generation of web (Web) page video by an RSS message reception event from the Internet, (4) generation of partner video by incoming videophone call, (5) time by event indicating that a designated time has arrived Message message generation is considered.

  As another example of the event and the video generation triggered by the event, there is an operation start of the video generation device 200a in which the power-on by the remote controller of the video generation device 200a is an event. Further, a command that can be an event may be received from the video display device 100a via the command receiving unit 204. In this case, the remote control 190 of the video display device 100a can turn on the power of the video generation device 200a or change the state information.

  The event processing unit 201 receives the event and notifies the video generation unit 202 and the video configuration unit 203 of the event. The video generation unit 202 generates a video signal to be displayed as a sub screen on the video display device 100a. For example, when the event information input from the event processing unit 201 is a doorphone chime press event, the video generation unit 202 generates a doorphone video signal, and the event information is an end message from the selector. Generates message text and message illustrations.

  The video composition unit 203 is based on the event information input from the event processing unit 201 and the status information of the video display device 100a input from the command receiving unit 204, and is displayed as a main screen on the video display device 100a. On the other hand, the position and size (layout information) of the main screen and the sub screen are determined so that the video generated by the video generation unit 202 is displayed as an appropriate layout as the sub screen. Then, the determined layout information is sent to the command generation unit 205. In addition, the video composition unit 203 outputs the video generated by the video generation unit 202 via the video output terminal 210.

  The command receiving unit 204 receives the status information of the video display device 100a and notifies the video configuration unit 203 of the status information. The command generation unit 205 generates a command from the position and size of the main screen and the sub screen of the video display device 100 a determined by the video configuration unit 203 and notifies the command communication unit 206 of the command. The command communication unit 206 exchanges commands related to the screen layout (screen layout commands) and the like with the video display device 100a via the command input / output terminal 211.

  FIG. 3 shows an example of a screen layout command. As shown in the figure, this command specifies the display position (upper left coordinate value) and display size of the main screen and the sub screen when the main screen and the sub screen are combined into one screen. In addition, the screen layout command includes a composite mode of (1) main screen priority, (2) sub-screen priority, (3) main screen display, and (4) sub-screen display. In the case of main screen priority and sub screen priority, it indicates which one is put forward when the main screen and the sub screen overlap at the time of one-screen composition. In the case of main screen display and sub-screen display, only that screen is displayed.

  Next, the operation of the video generation device 200a in FIG. 2 will be described with reference to the flowchart in FIG. First, the command receiving unit 204 receives a command transmitted from the video display device 100a via the command input / output terminal 211 and the command communication unit 206, and acquires status information of the video display device 100a (step S1). As shown in FIG. 5, the state information of the video display device 100a is a ratio of the horizontal length of the main screen to the vertical length (hereinafter referred to as an aspect ratio) of 16: 9 or 4: 3. Information on whether the power of the video display device 100a is on (ON) or off (OFF), and information on whether sub-screen display is permitted.

If the video display device 100a is not turned on, it may not be possible to explicitly acquire a signal from the command input / output terminal 106 of the video display device 100a. In such a case, since the command communication unit 206 cannot receive a signal from the video display device 100a, the command reception unit 204 generates status information indicating that the power is off and sends the status information to the video configuration unit 203. Also, for example, when a user is watching a movie being played on the DVD player 300 on the main screen of the video display device 100a, the screen is asynchronously split into two screens from the external video generation device 200a in order to concentrate on the movie. You may not want to change it. For this purpose, the command receiving unit 204 acquires information indicating whether or not sub-screen display is permitted as the status information of the video display device 100a. The video configuration unit 203 receives the video display device 100a notified from the command receiving unit 204. Based on the state information, it is determined whether or not the video generation device 100a is powered on and whether or not sub-screen display is permitted (steps S2 and S3). When the power of the video display device 100a is OFF (No in step S2) or when the sub-screen display is not permitted (No in step S3), the video configuration unit 203 is directed toward the video output terminal 210. Since video output is not performed, display on the video display device 100a is not performed (step S4). In the above case, the video composition unit 203 also does not issue a command to the command communication unit 206.

  On the other hand, when the power of the video display device 100a is ON (Yes in step S2) and the sub-screen display is permitted (Yes in step S3), the video configuration unit 203 of the video display device 100a. Information on the main screen aspect ratio is acquired from the state information (step S5), and a layout is generated based on the information (step S6). In the layout generation by the video configuration unit 203 in step S6, the video signal of the sub screen generated by the video generation unit 202 is displayed in an appropriate layout with respect to the video of the main screen displayed by the video display device 100a. Thus, the determination of the video signal and generation of layout information (positions and sizes of the main screen and the sub screen) of the main screen and the sub screen are generated. Note that the layout of the video signal of the sub screen may be determined depending on whether the video signal of the sub screen is processed or not as described later.

  Subsequently, the command generation unit 205 generates a main screen and sub screen control command based on the layout information of the main screen and the sub screen (step S7). Then, the video generation device 200a outputs the video of the layout sub-screen generated in step S6, the main screen generated in step S7, and the sub-screen control command to the video display device 100a, and ends the processing (step). S8).

The layout may be determined in any way depending on the function of the video generation device 200a.
Here, two examples of layout will be described.

  FIG. 6 shows a first example of the layout. In this example, the video generation device 200a generates a video signal for a sub-screen corresponding to weather, temperature, and news data acquired from the Internet. The video of these sub-screens is laid out by the video composition unit 203 so as not to overlap the main screen. The layout is different depending on whether the aspect ratio of the main screen is 16: 9 or 4: 3. The video on the sub screen does not overlap the video on the main screen and is displayed on the video display device 100a with an appropriate layout.

  FIG. 6A shows a sub-screen generated by the video composition unit 203 when the aspect ratio of the main screen is 16: 9. FIG. 6B shows a sub-screen generated by the video composition unit 203 when the aspect ratio of the main screen is 4: 3. The video composition unit 203 determines (processes) the sub-screen that has been determined (processed) into an appropriate layout, as shown in FIG. 6 (A) or (B), in accordance with the aspect ratio of the main screen. A video signal of the screen is generated, and the video signal is input from the video output terminal 210 to the sub-screen input terminal 105 of the video display device 100a. 6C and 6D show main screens when the aspect ratio is 16: 9 and 4: 3, respectively.

  The video composition unit 203 also sends to the command generation unit 205 the layout information of the main screen and the sub screen indicating the area where the generated video signal of the sub screen is displayed on the video display device 100a described later. The command generation unit 205 generates, for example, the command shown in FIG. 6E or (F) based on the layout information of the main screen and the sub screen. 6E and 6F show examples of commands when the aspect ratio of the main screen is 16: 9 and 4: 3.

  As shown in FIG. 3, the commands shown in FIGS. 6E and 6F are in order from left to right in the synthesis mode, the main screen display position (the upper left coordinate value), the main screen display size, and the sub screen. Each item of the screen display position (the upper left coordinate value) and the sub screen display size is shown. In this case, the composition mode is the main screen priority mode. When the composite mode is the main screen priority mode, the main screen is a screen that is composited before the sub screen. Therefore, when the composition mode is the main screen priority mode, the video composing unit 203 only has to generate the video signal of the sub screen that is laid out while avoiding the area drawn on the main screen.

  The command communication unit 206 supplies the command shown in FIG. 6E or F generated by the command generation unit 205 from the command input / output terminal 211 to the command input / output terminal 106 of the video display device 100a. As a result, when the aspect ratio of the main screen is 16: 9, the display panel 128 of the image display device 100a has the image of the main screen shown in FIG. 6C and the image of the sub screen shown in FIG. And a composite screen image shown in FIG. When the main screen has an aspect ratio of 4: 3, the display panel 128 of the video display device 100a includes the sub screen video shown in FIG. 6B and the main screen video shown in FIG. A composite screen image shown in FIG.

  FIG. 7 shows a second example of the layout. In this example, the video composition unit 203 simply sends the sub-screen video signal generated by the video generation unit 202 to the video output terminal 210 without being processed. On the other hand, the command generation unit 205 generates a command indicating the layout of the main screen and the sub screen, and sends the command to the command input / output terminal 211 via the command communication unit 206.

  FIGS. 7A and 7B show the sub screen generated when the aspect ratio of the main screen is 4: 3. FIGS. 7C and 7D show examples of commands generated by the command generation unit 205 when the aspect ratio of the main screen is 16: 9 and 4: 3. In this command example, the x coordinate of the right end of the main screen is “1344”, whereas the x coordinate of the left end of the sub screen is “1400”, so the display position of the main screen and the display position of the sub screen are overlapped. Don't be. Accordingly, in the command examples of FIGS. 7C and 7D, the composition mode is the main screen priority mode, but the composition mode may be either the main screen priority or the sub screen priority.

  FIG. 7E shows a main screen and a sub screen when the aspect ratio of the main screen displayed on the display panel 128 of the video display device 100a is 16: 9. FIG. 7F shows the main screen and the sub screen when the aspect ratio of the main screen displayed on the display panel 128 of the video display device 100a is 4: 3. Even in this case, the feature of the present embodiment that the video generation device 200a performs the layout of the screen displayed on the video display device 100a is the same as the example of FIG.

  As described above, in order to appropriately lay out the video of the main screen and the video of the sub-screen on the display panel 128 of the video display device 100a, information on the screen aspect ratio of the main screen is necessary. Since the main screen is a screen that displays a video of a television broadcast signal or an externally input video, the screen aspect ratio is either 4: 3 or 16: 9.

  Here, if the screen is laid out on the video display device 100a side, the video generation device 200a needs to individually communicate the display elements of the sub-screen to the video display device 100a. For example, in the case of an existing door phone, the video display device 100a cannot be displayed in an appropriate layout unless the door phone video and accompanying information such as a message are separated and sent to the video display device 100a.

  On the other hand, in the present embodiment, the video generation device 200a has a video configuration unit 203, and the video configuration unit 203 supplies a command indicating the layout of the main screen and the sub screen to the video display device 100a together with the video signal of the sub screen. Therefore, the video display device 100a can display the video of the main screen and the video of the sub screen appropriately laid out. Since the main screen has two screen aspect ratios, it is easy to obtain status information.

  Further, even if the sub-screen is not a simple rectangular screen as a result of the layout, but is an L-shaped screen, the main screen and the sub-screen may be overlapped with the composition mode as the main screen priority. In this case, since only the video signal of the sub-screen displayed in the rectangular area when the main screen and the sub-screen are always overlapped is sent from the video generation device 200a, the video generation device 200a is always transmitted. And communication between the video display device 100a and the video display device 100a are simplified. That is, the video composing unit 203 has a function of synthesizing various information input from the video generating unit 202 and generating a video signal of a simple rectangular area, thereby simplifying the communication.

  Next, the configuration of the first embodiment of the video display apparatus according to the present invention will be described.

  As shown in FIG. 8, the video display device 100a according to the first embodiment includes an antenna terminal 101, external input terminals 102, 103, and 104, a sub-screen input terminal 105, a command input / output terminal 106, a tuner unit 120, and a decoder. Unit 121, input state information management unit 122, command communication unit 123, main screen video conversion unit 124, sub-screen video conversion unit 125, notification information generation unit 126, screen composition unit 127, and display panel 128. The sub-screen input terminal 105 is connected to the video output terminal 210 of the video generation apparatus 200a, and the command input / output terminal 106 is connected to the command input / output terminal 211 of the video generation apparatus 200a.

  The tuner unit 120 selectively receives a television broadcast signal input from the antenna terminal 101. The decoder unit 121 decodes (decodes) the compressed video signal obtained by channel selection reception by the tuner unit 120. The input state information management unit 122 selects any one of the moving image signal decoded by the decoder unit 121 and the signals input from the external input terminals 102, 103, and 104. The input state information management unit 122 also manages the aspect ratio of the video currently displayed as the main screen and whether or not the user permits sub-screen display, and sends this information to the command communication unit 123.

  On the other hand, the command communication unit 123 receives a command transmitted from the video generation device 200a via the command input / output terminal 106, and receives the received command as a main screen video conversion unit 124, a sub screen video conversion unit 125, and notification information generation. Unit 126 and screen composition unit 127. In the conventional video display device, no instruction is given by an external command in order to perform the main screen video conversion and screen synthesis. On the other hand, in the present embodiment, a command from the outside is supplied to the main screen image conversion unit 124 and the screen composition unit 127 as described above, and the command is used for main screen image conversion and screen composition. It is very different from the video display device.

  The main screen video conversion unit 124 performs the video size, display position, and scan conversion of the main screen on the video signal selected and output from the input state management unit 122 based on the command instruction from the command communication unit 123. Then, a video signal to be displayed on the main screen (referred to as a main screen video signal) is generated.

  The sub-screen video conversion unit 125 receives a command from the command communication unit 123 for a video signal displayed on the sub-screen received via the sub-screen input terminal 105 (this is called a sub-screen video signal). Based on the instruction, the sub-screen video signal is generated by performing the video size, display position, and scan conversion of the sub-screen.

  The screen synthesis unit 127 synthesizes the main screen video signal output from the main screen video conversion unit 124 and the sub screen video signal output from the sub screen video conversion unit 125 into a single screen video signal. The compositing instruction is performed based on the layout command shown in FIG. The display panel 128 simultaneously displays a composite video signal of the main screen video signal and the sub screen video signal on one screen.

  By the way, for example, when the video display of the sub-screen is “Generation and display of message video by selection end event from the selection device connected to the network”, the screen is displayed by the selection end event regardless of the TV content (asynchronously). A message is displayed. In this case, if the screen suddenly changes, the user may miss the change and be confused.

  Therefore, the notification information generation unit 126 receives a command from the command communication unit 123 and notifies the user that the configuration of the main screen and the sub screen is changed. As notification means, (1) when the position and size of the main screen and sub-screen are changed, it is changed like an animation over several seconds, (2) the screen is flashed at the time of change, (3) change A means such as sounding a notification sound at the time can be considered. Note that the notification means is not limited to these, and any method that allows the user to easily recognize that the screen configuration has changed may be used.

  As described above, according to the present embodiment, the user inputs the layout information of the main screen and the sub screen to the video display device 100a from the video generation device 200a such as a doorphone simultaneously with the input of the video of the sub screen. Without instructing the video display device 100a using a remote controller or the like, the main screen automatically displays the sub-screen video signal from the video generation device 200a and the previously displayed main screen video signal such as broadcast in one screen. And two sub-screens can be displayed simultaneously.

  Further, according to the present embodiment, it is possible to display the video with the optimum layout for the display screen by combining the information of the video generation device 100a and the main screen video. Furthermore, according to the present embodiment, it is possible to cope with many video display devices without changing the internal structure of the video display device 100a.

(Second Embodiment)
FIG. 9 is a block diagram of a second embodiment of the video generation apparatus according to the present invention, FIG. 10 is a block diagram of the second embodiment of the video display apparatus according to the present invention, and FIG. 11 is a video display. Indicates device status information. In FIG. 9 and FIG. 10, the same components as those in FIG. 2 and FIG. A video generation apparatus 200b according to the second embodiment illustrated in FIG. 9 is a video generation apparatus corresponding to the video generation apparatus 200 illustrated in FIG. A video display device 100b according to the second embodiment shown in FIG. 10 is a video display device corresponding to the video display device 100 shown in FIG.

  The video generation apparatus 200 in FIG. 1 may not only display an image in response to an asynchronous event, but may require user input. For example, in the case of generating and displaying a Web page video by the above-described RSS message reception event from the Internet, it is necessary to perform an operation such as selecting a link and clicking a link with respect to the displayed Web page video. is there. Generally, these operations are performed through a remote controller. Therefore, in the first embodiment, separate remote controllers are necessary for both the video display device 100a and the video generation device 200a.

  On the other hand, in the present embodiment, the video generation device 200b can be operated with the remote controller of the video display device 100b, and the control related to the main screen and the sub screen displayed on the video display device 100b can be performed with the same remote control.

  In FIG. 9, the video generation device 200 b includes an event processing unit 201 that processes an event that triggers a video display update, a video generation unit 212 that generates a video signal to be displayed, a video configuration unit 203 that lays out the generated video, A command communication unit 206 that communicates with the command communication unit 123 of the video display device 100b, a command reception unit 213 that receives a command for acquiring display state information of the video display device 100b from the command communication unit 206, and a layout of the main screen The command generation unit 205 generates a command for notification, a video output terminal 210, and a command input / output terminal 211.

  The command reception unit 213 of the video generation device 200b receives the command transmitted from the video display device 100b of FIG. 10 via the command input / output terminal 211 and the command communication unit 206, and acquires the status information of the video display device 100b. . As shown in FIG. 11, the state information of the video display device 100b includes information on whether the aspect ratio of the main screen is 16: 9 or 4: 3, and the power supply of the video display device 100b is on. Information indicating whether or not there is a remote control event from the video display device 100b is added to the information indicating whether or not the sub-screen display is permitted. The command receiving unit 213 sends a command to the video composition unit 203 if the command received from the video display device 100b is a command related to the video display device 100b, and sends a command to the video generation unit 212 if the command is related to a remote control event. send.

  On the other hand, as shown in FIG. 10, the video display device 100b has a configuration in which a remote control light receiving element 109, a remote control reception unit 130, and a remote control distribution unit 131 are added to the configuration of the video display device 100a shown in FIG. The video display device 100b notifies the video generation device 200b of the remote control event (remote control message) from the video display device 100b together with the status information of the device itself.

  In FIG. 10, the remote control light receiving element 109 receives a remote control wave that is infrared light transmitted from the TV remote control 190, photoelectrically converts it to generate a remote control signal, and supplies the remote control signal to the remote control receiving unit 130. The remote control receiving unit 130 receives the remote control signal from the remote control light receiving element 109 and supplies it to the remote control sorting unit 131.

  The remote control sorting unit 131 sorts remote control events based on the input remote control signal. The remote control event includes (1) an event for switching an external input, (2) an event for operating the video display device 100b, (3) an event for switching an operation target between a main screen and a sub screen, and (4) a main screen or a sub screen. There are four types of events to be operated.

  Among these events, an event for switching the external input is sent from the remote control sorting unit 131 to the input state information management unit 122. Further, an event for operating the video display device 100b itself, such as volume, is not shown because it is the same as a general video display device. The event for switching the operation target between the main screen and the sub screen is notified from the remote control distribution unit 131 to the screen composition unit 127 and managed by the remote control distribution unit 131. An event for operating the main screen or the sub screen is sent to the decoder unit 121 or the command communication unit 123 based on information managed by the remote control sorting unit 131.

  The command communication unit 123 sends a command related to the video display device 100b and a command related to the remote control event to the video generation device 200b. Accordingly, the video generation device 200b can be controlled by the TV remote controller 190.

  In the second embodiment, the sub-screen input terminal 105 and the command input / output terminal 106 of the video display device 100b may be combined into one using an HDMI terminal. Similarly, the video output terminal 210 and the command input / output terminal 211 of the video generation apparatus 200b may be combined into one using an HDMI terminal. In these cases, the command input / output uses HDMI-CEC. In HDMI-CEC, there is a command called <active source> for switching the input to the terminal to which the command is input, but the second embodiment can be realized by extending as shown in FIG.

  The present invention links a TV receiver as a video display device and an external device as a video generation device, so that (1) generation and display of doorphone video by a doorphone chime press event, and (2) connection to a network (3) Generation and display of a Web page image by an RSS message reception event from the Internet, (4) Generation of a partner image by an incoming videophone call And (5) generation and display of a time message video indicating that a designated time has arrived.

It is a block diagram of the whole system containing the video production | generation apparatus and video display apparatus of this invention. [BRIEF DESCRIPTION OF THE DRAWINGS] It is a block diagram of 1st Embodiment of the video production | generation apparatus of this invention. It is a figure which shows an example of the layout command of a screen. 3 is a flowchart for explaining the operation of the video generation apparatus in FIG. 2. It is a figure showing the status information of 1st Embodiment of the video display apparatus of this invention. It is explanatory drawing of the 1st example of a layout. It is explanatory drawing of the 2nd example of a layout. 1 is a block diagram of a first embodiment of a video display device of the present invention. It is a block diagram of 2nd Embodiment of the video production | generation apparatus of this invention. It is a block diagram of 2nd Embodiment of the video display apparatus of this invention. It is a figure showing the status information of 2nd Embodiment of the video display apparatus of this invention.

Explanation of symbols

100, 100a, 100b Video display device 101 Antenna terminal 102-104 External input terminal 105 Sub-screen input terminal 106 Command input / output terminal 109 Remote control light receiving element 120 Tuner part 121 Decoder part 122 Input state information management part 123 Command communication part 124 Main screen Video conversion unit 125 Sub-screen video conversion unit 126 Notification information generation unit 127 Screen composition unit 128 Display panel 130 Remote control reception unit 131 Remote control distribution unit 190 TV remote control 200, 200a, 200b Video generation device 201 Event processing unit 202 Video generation unit 203 Video composition unit 204 Command reception unit 205 Command generation unit 206 Command communication unit 210 Video output terminal 211 Command input / output terminal 300 DVD player 310 Game machine

Claims (4)

Video generation means for generating a video signal to be displayed as a sub-screen video by the video display device;
Command receiving means for acquiring status information of the display device including at least information on an aspect ratio of a video signal that the video display device displays as a main screen video from the video display device;
Event processing means for causing the video generation means to generate a video signal to be displayed as the sub-screen video based on an event;
Based on the status information of the display device, the video signal to be displayed as the sub-screen video generated by the video generation means is in a predetermined layout relationship with the main screen video displayed by the video display device. Video composition means for outputting the processed sub-screen video signal to the video display device, and generating screen layout information including information on the position and size of the main screen video and the sub-screen video of the video display device;
Command generating means for generating a command for controlling the position and size of the main screen video and the sub-screen video displayed by the video display device based on the screen layout information and outputting the command to the video display device;
A video generation apparatus comprising: The command receiving means further has a function of receiving from the video display device a remote control event signal that is information indicating that the video display device has been operated by a remote control from the video display device.
2. The video generation apparatus according to claim 1, wherein when the remote control event signal is input from the command receiving means, the video configuration means generates the screen layout information corresponding to the remote control event signal. In a video display device including a display unit for displaying a video signal,
An input state management means for setting one video signal selected from an externally input video signal input from the outside and a generated video signal generated by the video display device itself as a main screen video;
Receiving a first command including information for controlling a layout of video display in the video display device itself, and status information of the display device including at least an aspect ratio of a main screen video displayed by the video display device itself; Command transmitting / receiving means for transmitting a second command including:
Sub-screen video receiving means for receiving a video signal to be displayed as a sub-screen video;
Main screen video conversion means for determining a video size and a display position for the video signal to be displayed as the main screen video based on the received first command and generating a main screen video signal subjected to scan conversion When,
Based on the received first command, a sub-main-screen video conversion that determines a video size and a display position and generates a sub-screen video signal subjected to scan conversion for the video signal to be displayed as the sub-screen video. Means,
Screen synthesis means for generating a synthesized video signal obtained by synthesizing the main screen video signal and the sub-screen video signal and supplying the synthesized video signal to the display unit;
A video display device comprising: Control signal receiving means for receiving a control signal from the outside;
Control signal sorting means for sorting according to whether the control signal is a control signal for the main screen video or a control signal for the sub-screen video;
4. The video according to claim 3, further comprising: a transmission unit that generates a signal indicating an event based on a control signal for the sub-screen video distributed by the control signal distribution unit and transmits the signal to an external device. Display device.

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