JP2006246019A - Remote control system for multi-screen display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate problems including (1) complicated remote controller operation (2), an increase in the number of remote controller buttons, and (3) the frequent movement of a line of a sight between a screen and a remote controller, at screen operation by a remote controller in multiscreen display, and to improve operativity. <P>SOLUTION: Allocation to which operation allocations of a screen layout direction and a multi-directional key of the remote controller are made to correspond is conducted, and the allocation is dynamically variably conducted every time when a screen layout and a screen control method are changed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a remote control method for a multi-screen display device that displays two or more screens in the same display area.

  Conventionally, in analog broadcasting, a television that displays a plurality of sub-screens inside or outside the main screen is known. An example of a television having such a function is disclosed in JP-A-2-96486. In addition, multi-screen televisions, etc., in which one tuner is controlled in a time-sharing manner and the number of sub-screen divisions is increased to the number of broadcast programs by performing cyclic switching display of semi-moving images, have already been put into practical use.

  In addition, regarding digital broadcasting, which is scheduled to be broadcast as a technology that will replace analog broadcasting in the future, even in the same program, a plurality of related videos are multiplexed and transmitted, and a multi-screen display called multi-view is used. The presentation method is standardized by ARIB. Thereby, it becomes possible to broadcast a baseball broadcast etc. in multiple angles. Furthermore, there is an increasing demand for simultaneous display of a plurality of programs on a multi-screen so as to help program selection corresponding to the increase in the number of channels of digital broadcasting.

Such multi-screen display for simultaneously displaying a plurality of videos is a field that is encouraged by high-definition large-screen displays and further technical innovation is required in the future.
Japanese Patent Laid-Open No. 2-96486

  However, the multi-screen display with the screen division for the number of programs as in the above prior art has the merit that a plurality of information can be presented simultaneously on the same screen, but the program channel is selected by selecting one of the screens. When there is a user action such as switching, recording reservation for the program, or switching between the main screen and the sub-screen, there is a problem that the remote control operation becomes complicated as the number of screens increases. Specifically, for example, in the conventional two-screen display television shown in FIG. 7, by pressing the two-screen selection button 20 on the remote controller in FIG. 7A, as shown in FIG. Some screens display two screens with left and right programs side by side. At this time, when the display positions of the left and right screens are switched, by pressing the left / right switching button 22, the screens are switched as shown in the image of FIG. 7B. Further, when operating individual screens, pressing the screen operation button 21 displays a GUI menu 23 for confirming which of the left and right screens to operate as shown in the image of FIG. Enters the screen operation that follows after selecting one using another button on the remote control. Such a method can be an effective means for multi-screen operation of about two screens with a fixed screen layout. However, in multi-screen display in which the number of display screens can be increased or the screen layout can be changed, a remote control can be used. In this case, a large number of buttons dedicated to screen control must be provided, and the number of buttons on the remote control increases as the function increases. The GUI menu display is one means that leads to a reduction in the number of buttons. However, such hierarchically displayed selection means can be a large barrier for elderly users who are not familiar with personal computers. There is sex. Furthermore, in response to a user's request to easily watch or switch programs, the TV changes its position to the position of the remote control button and the display screen each time the program is switched (the line of sight moves between the display screen and the remote control). What you have to do is not necessarily an easy-to-use user interface. As described above, even in the multi-screen display with improved functions, there is a growing demand for further improvements and contrivances for intuitive and simple operations without moving the line of sight to the remote controller as in the conventional analog television sense.

  In order to solve the above-mentioned problem, the first invention in this embodiment is to display the positional relationship between the multi-directional keys of the remote controller and the “screen layout of the entire screen” in the multi-screen display in which the screen is not selected. The user can make screen selection (direct screen control) intuitively and directly by pressing the multi-directional button of the selected screen direction position in a one-to-one correspondence with the same direction as seen. did. Also, whenever the multi-screen layout is changed, the screen selection key assignment of the remote control keys can be changed according to the above simple rules, and even if the screen layout is changed, the remote control operation can be It is made possible only by operation.

  In order to solve the above-mentioned problem, the second invention in this embodiment is the positional relationship between the multi-directional key of the remote controller and the “screen layout of the selected screen” in the multi-screen display in the state where the screen is selected. The same direct screen control as described above is realized in a one-to-one correspondence in the same direction as seen. Further, by unifying the screen control direction by the screen control action and the allocation direction of the multi-directional key, the remote control operation and the screen control have a sense of unity.

  In order to solve the above-mentioned problem, the third invention in this embodiment is to provide an operation navigation each time the screen layout changes or the screen control method changes the GUI screen showing the allocation of the direct screen control. As a result, the display can be switched between display and non-display by user ON / OFF control.

As described above, by using the remote control method in the multi-screen display of the present invention, even if the number of display screens at the time of multi-screen display increases due to the function enhancement,
1) Remote control operation is not complicated.

  2) The number of remote control buttons does not increase.

3) Since intuitive remote control can be performed, there is no line-of-sight movement between the display screen and the remote control, and a smooth screen operation is possible for the user.
Many effects are obtained.

(First embodiment)
FIG. 1 is a block diagram of a display system according to the present invention.

<Description of each part>
In this embodiment, four independent program video sources can be combined and displayed on one display device based on a predetermined layout. These program video sources may be more or less than four.

  Each block in FIG. 1 will be described.

  Reference numeral 1 denotes an antenna (parabolic antenna) that receives BS digital broadcasting and CS digital broadcasting. In this embodiment, satellite broadcasting is taken as an example, but it may be received from terrestrial waves, optical cables or the like.

  Reference numerals 2-1 to 2-4 denote tuner sections that pass through a band-pass filter, a down converter, etc., and then output to the demodulation sections 3-1 to 3-4. Here, demodulation processing matching the transmission form is performed, error correction processing, and the like are performed, and a desired MPEG2 transport stream is transferred to the demultiplexers 4-1 to 4-4.

  The demultiplexers 4-1 to 4-4 separate the MPEG2 video data, MPEG2 audio data and additional information of the desired program from the transport stream. The separated MPEG2 audio data is decoded by an audio decoder (not shown) and output as an audio signal. If you connect an amplifier and speakers to this, you can listen to the audio of the received program.

  The separated MPEG2 video data is decoded by the video decoders 5-1 to 5-4, converted into a raster scan format display format, and then used as program video sources in the subsequent stages 6-1 to 6-4. Passed to the enlargement / reduction section.

  Further, the separated MPEG2 additional information is transferred to 12 control units. When the additional information is a data broadcast that is scheduled to be used in BS digital broadcasting, the control unit 12 interprets the BML language and obtains a structured content scenario of the multimedia information service provider. When the additional information is EPG (Electrical Program Guid) information, the control unit 12 interprets PSI / SI information and obtains program information (for example, program, broadcast time, title, category, etc.).

  Reference numerals 6-1 to 6-4 denote enlargement / reduction units, which perform preprocessing such as a matrix circuit for converting a YUV color difference signal to an RGB signal and an IP conversion circuit for converting a scanning method from interlace to progressive. Based on the display format (number of display lines, number of dots, number of colors) and preset screen layout information, the control unit 12 sets resolution conversion parameters (enlargement ratio, reduction ratio, weighting filter coefficients for enlargement / reduction, etc.). The enlargement / reduction / same size processing is performed.

  Reference numerals 7-1 to 7-4 denote memory control units which receive 8 video data received at input rates (transfer rates synchronized with horizontal / vertical synchronization signals on the input side) from the enlargement / reduction units 6-1 to 6-4. At the same time as writing control to the memories -1 to 8-4, at the same time as the output rate of the display device from the synthesizing unit 9 (display rate synchronized with the horizontal / vertical synchronizing signal on the output side) 8-1 to 8- 4 is read out from the memory. The write control and read control are executed completely asynchronously. In the memory control units 7-1 to 7-4, the control unit 12 executes the above operation by setting memory control parameters (such as a capture area for input data in a memory and a read area for output data from a memory).

  Each of the memories 8-1 to 8-4 has a memory size corresponding to at least one display image.

  The synthesizing unit 9 is an arithmetic unit that synthesizes two image data read from the memory control units 7-1 to 7-4 that operate independently. In the example of this embodiment, all the data input to the combining unit 9 has a common timing synchronized with the horizontal / vertical synchronizing signal of the display device 11, and the data area transferred within one frame is an actual image display. Same as region. This is one means for the purpose of easily aligning the four video sources at the time of synthesis. Further, the data valid area of each video source to the synthesis unit 9 can be identified by the data valid signal received together with the image data from the memory control units 7-1 to 7-4 within the horizontal period.

  A composition method in the composition unit 9 will be described with reference to an image diagram of superposition composition in FIG. When the input data received from the memory control units 7-1 to 7-4 has an effective image area as shown in the input screens 1 to 4 in FIG. 2, the synthesis unit 9 receives the above two data received from the memory control unit The valid signal is monitored, and only data for which the valid signal becomes active is selected and output. When two or more valid signals become active at the same time, the control unit 12 sets the priority of superimposition determined from the screen layout in the combining unit 9 so that the combining unit 9 can select an input image with a high priority. Select as output image. As a result, a video-only composite screen can be obtained. On the other hand, the control unit 12 renders OSD data as a GUI (Graphical User Interface) in 15 GUI generation units. This GUI data is output from the GUI generation unit 15 to the synthesis unit 9, and the synthesis unit 9 can further generate the video and GUI synthesis screen shown in FIG. In the example of FIG. 2, the background data is created by the GUI, but it is possible to synthesize and display the EPG screen and other operation support screens.

  Reference numeral 10 denotes a display control unit that performs display drive control and display format conversion in accordance with the characteristics of the display device 11. Further, the display control unit 10 includes an output timing generation unit. The main role of this is to generate the timing control signal of the display device 11, and based on the reference clock, it generates the horizontal sync signal on the output side and the vertical sync signal on the output side. Hand over.

  Reference numeral 11 denotes a display device, and the device may be a flat panel (liquid crystal, plasma, etc.) having a matrix electrode structure, or any device that displays an image even with a CRT. A large-screen high-definition display capable of displaying a high-definition video of 720P or higher is suitable for application to the application of this embodiment.

  Reference numeral 12 denotes a system control unit for controlling the entire system, including 14 RAMs for temporarily storing data of a CPU having computing power, 13 ROMs for storing control programs, a counter for measuring time, a peripheral input / output interface, and the like. Have. Further, the control unit 12 may be composed of only logic logic, or may be a CPU or a media processor capable of parallel operation. The program for performing the control may be built in the ROM, or may be transferred from the outside via the peripheral input / output interface. Also, 16 remote control light receiving units are connected to the 12 control units, and can accept commands from the remote control 17 using infrared rays. The remote controller 17 can accept a user operation action.

  Hereinafter, the operation of the display system of the present invention will be described with reference to the numbers of the above-described parts. All the flowcharts described below are the operations of the control unit 12.

<System initialization>
FIG. 3 is a flowchart showing the initialization operation of the system when the power is turned on.

  When the control unit 12 detects power-on in step S100, the control unit 12 acquires screen layout information from the ROM 13 in step S101. Here, the screen layout information is an example of the screen layout for simultaneously displaying one main screen and two sub-screens as shown in FIG. 5, and the screen layout is limited to this. is not. The screen layout in FIG. 5 assumes a usage in which the user checks and searches for a back program using two sub-screens while viewing a favorite program on the main screen.

  If the program name to be entered in the main screen and the program name to be entered in the sub-screens 1 and 2 are determined in advance in the screen layout in step S102, the main screen entry program is set in the RAM 14 in step S104, and step S105 Then, the entry programs of the sub-screen 1 and the sub-screen 2 are set in the RAM 14. If the entry program has not been determined, the entry program is filtered in step 103, which will be described in detail later.

  Here, a specific method for entering the program into the RAM 14 in steps 104 to 105 will be described with reference to FIG. In the example of FIG. 6, the number of entry programs on the main screen is one program, and the number of entry programs on both the sub-screens 1 and 2 is five. Here, in the case of multi-channel digital broadcasting, the number of entries in the sub-screen is preferably narrowed down as in this embodiment so that the burden on the user when selecting a channel can be reduced. The priority for the user of the program entered in the RAM 14 is: main screen> slave screen 1> slave screen 2 on the multi-screen display. The entry program of the slave screen 1 is Sub1 (L0) shown in FIG. )> Sub1 (L1)> Sub1 (L2)> Sub1 (L3)> Sub1 (L4)> Sub1 (L5)> Sub1 (L6), Sub2 (L0) shown in FIG. )> Sub2 (L1)> Sub2 (L2)> Sub2 (L3)> Sub2 (L4)> Sub2 (L5)> Sub2 (L6). During multi-screen display, Main (L0), Sub1 (L0), and Sub2 (L0) are display layers for displaying programs, and the remaining entry programs in the sub-screens 1 and 2 are waiting in the RAM 14 as a program ready queue. is doing.

  In step S106, tuning control for the main screen is performed. This channel selection control indicates the entire series of control operations as follows.

  First, the control unit 12 acquires information on the program # 0 entered in Main (L0) from the RAM 12, and controls the tuner unit 2-1 based on the information. Thereby, the tuner unit 2-1 selects the transponder including the program # 0. Next, the control unit 12 controls the demultiplexer 4-1. Thereby, the demultiplexer 4-1 separates the transport stream including the program # 0. Finally, the control unit 12 controls the video decoder 5-1. Thereby, the video decoder 5-1 decodes the MPEG2 video data of the transport stream (hereinafter referred to as TS) including the program # 0.

  In step S107, channel selection control for the child screens 1 and 2 is similarly performed. In this case, the processing system for the child screen 1 is 2-2, 3-2, 4-2, 5-2, and the processing system for the child screen 2 is 2-3, 3-3, 4-3, 5- 3 is used.

  In step S108, display parameters for the main screen are set. Based on the screen layout information acquired in step S101, the control unit 12 sets resolution conversion parameters (enlargement / reduction ratio, enlargement / reduction weighting filter coefficients, etc.) for the main screen in the enlargement / reduction unit 6-1, and the memory Memory control parameters (capture area of input data to memory, read area of output data from memory, etc.) are set in the control unit 7-1.

  In step S109, display parameters for the child screens 1 and 2 are similarly set. In this case, the processing system for the child screen 1 uses 6-2 and 7-2, and the processing system for the child screen 2 uses 6-3 and 7-3.

  Through the above steps, in step S110, the control unit 112 waits for a user action from the remote controller 17, and the initialization is completed with the multi-screen display in FIG. 5 and the program entry state in the RAM 14 in FIG.

<Filtering entry programs>
Here, the entry program filtering process in step S103 will be described in detail with reference to the flowchart of FIG.

  In step S <b> 200, the control unit 12 acquires the number of main screen entry programs from the ROM 13. In this embodiment, the number of main screen program entries is one.

  In step S <b> 201, the control unit 12 acquires the sub-screen 1, the number of entries and the number of programs from the ROM 13. In this embodiment, the child screens 1 and 2 have a program entry number of seven.

  In step S203, the control unit 12 acquires the current time. The exact time may be used because there is a description of the time stamp in TS data from the broadcast, and this may be referred to when the control unit 12 has a date timer.

  In step S204, if there is program data at the current time acquired in the above step, the process proceeds to step S206. If not, in step S205, program information that can be viewed at the current time is acquired from the broadcast data. In the case of BS digital broadcasting, this program information can be obtained from an all-station EPG service sent accompanying each transponder, and in the case of CS digital broadcasting, it can be obtained from a promotion channel.

  In step S206, it is checked whether the program information acquired in the above step is a viewing-restricted program. If the program is a viewing-restricted program, it is checked in step S207 if the accounting process has already been performed. The control unit 12 can acquire the charging processing status from an IC card (not shown) in which various information for limited reception is written. For a program that has not been charged, a process for removing it from the entry target is performed in step S208.

  In step S209, if the number of programs narrowed down in the above step is larger than the maximum number of entry programs acquired in steps S200 and S201 (main screen + child screen 1 + child screen 2 = 1 + 7 + 7 = 15 in this embodiment) Based on the preference information (category, performers, user viewing history, etc.) previously set by the user in advance in step S210, the control unit 12 narrows down to the maximum number of entry programs.

  In step S211, an entry program prioritization process is performed based on the preference information. There are various methods for assigning specific priorities, but they are not described here because they are not the point of this idea.

  In step S212, the highest priority program is entered into the RAM for the main screen. In step S213, the remaining programs are entered into the RAM for the sub-screens 1 and 2 in order of priority. The specific entry method to the sub-screens 1 and 2 takes into account the entry order based on the priority in FIG. 6 and the condition that the displayed one has a high priority. Sub1 (L0)> Sub2 (L0)> Sub1 (L1)> Sub2 (L1)> Sub1 (L2)> Sub2 (L2)> Sub1 (L3)> Sub2 (L3)> Sub1 (L4)> Sub2 (L4)> Sub1 (L5)> Sub2 It is preferable to sort in the order of (L5)> Sub1 (L6)> Sub2 (L6).

<Direct selection of multi-screen using multi-directional keys on remote control>
The direct selection of the multi-screen by the multi-directional keys of the remote controller, which is the feature of the present proposal, will be described below using the flowchart of the direct-screen control remote controller in FIG. 8, the multi-screen layout in FIG. 9, and the image diagram of multi-directional key assignment. . In FIG. 8, after the power is turned on, an initial screen layout of a multi-screen is performed in step S300. For example, the screen layout A in FIG. 9 in which two child screens are arranged on the left and one main screen is arranged on the right is the initial screen. In step S301, a remote control key for screen selection is assigned. In this embodiment, the remote control key for screen selection here is a multi-directional key that can select eight directions. If a multi-directional key cannot be implemented, the 10 keys arranged on the matrix may be substituted. Remote key assignment method is based on the correspondence with each screen position.
In screen layout A, upper left key → for selection of sub-screen A lower left key → for selection of sub-screen B right key → for selection of main screen Remaining keys → Assign as invalid.

  If there is no layout change in step S302, the process waits for the user's remote control action in step S303. If the key assigned by the multidirectional key is selected, the selection screen shown in FIG. 10A in step S304 is displayed. Perform focus display. For example, when the upper left key is pressed, the focus display of the child screen A is performed, when the lower left key is pressed, the focus display of the child screen B is performed, and when the right key is pressed, the focus display of the main screen is performed.

  If there is a layout change in step S302, the display layout is updated in step S309. For example, the screen layout is changed to the screen layouts B to D in FIG. In addition, a feature here is that, simultaneously with the update of the screen layout, the assignment of the multidirectional keys is also updated at the same time in step S301.

For example,
In screen layout B (main screen + sub-screen) Left key → for selecting main screen Upper right key → for selecting sub-screen A Lower right key → for selecting sub-screen B Remaining keys → Invalid screen layout C (picture-in-picture) ) In the upper left key → for selecting the sub-screen A Up key → for selecting the sub-screen B Upper right key → for selecting the sub-screen C Lower key → for selecting the main screen Remaining keys → Invalid screen layout D (4-screen multi) In the upper left key → for the selection of sub-screen A Upper right key → for the selection of sub-screen B Lower left key → for the selection of sub-screen C Lower right key → for the selection of sub-screen D Remaining keys → Invalidity and assignment change depending on the screen layout To do.

  In either case, since the multi-directional key is used, the user only has to directly select the screen direction to be selected without moving the line of sight to the remote control as if the fingertip.

  If the cancel key is pressed in step S305, the focus display is canceled in step S306, and the process returns to step S302.

  When the cancel key is not pressed in step S305 and the selection screen is in focus display, if a determination key that is often placed at the center of the multidirectional key is pressed in step S307, the selected screen is displayed as a full screen in step S308. Zoom in on. By such a series of actions, it is possible to quickly and easily select a favorite program on a multi-screen and bring it to a full-screen display. In the present embodiment, one example is that full-screen display is performed after focus selection. However, when the selection screen is a sub-screen, screen control such as switching the sub-screen and the main screen may be performed. If there is a selection screen control action in step S310, a selection screen control process is performed in step S311. Details of the embodiments of steps S310 to S311 will be described in the following (second embodiment).

  As described above, by directly assigning the multi-directional keys of the remote control to the screen layout in the non-selected state of the multi-screen display screen, the number of dedicated remote control keys as in the conventional example can be increased, or the hierarchical structure by the GUI The screen can be selected directly without going through intermediate steps such as selection. This realizes a simple screen selection that eliminates the movement of the line of sight to the remote controller.

(Second embodiment)
In the above embodiment, the intuitive screen selection method that does not depend on the layout of the multi-screen has been described by taking the multi-screen layout in the non-selected state as an example. However, in this embodiment, the user action of the selection screen is performed at the focus stage where the screen is selected. In the case of performing control other than the determination of the screen, how to easily perform the control with the remote controller will be described using an example of multi-directional key assignment at the time of screen control of the selection screen in FIG.

The description of this embodiment starts from a state in which the sub-screen A is selected and displayed in focus as shown in FIG. In this state, when the control action of the selection screen is program switching by wipe in step S310 of FIG.
Multi-directional keys
Upper left key → Sub screen A wipe switching Remaining key → Assign invalid.

  That is, in the above-described embodiment, the multi-directional key is assigned to the entire screen, whereas in this embodiment, the assignment rule is set to assign the multi-directional key to the selection screen (focus screen). It is a feature that has changed.

Thus, each time the upper left key is pressed, the program is switched by wiping as shown in FIG. 10B in step S111. The program switching method follows the order of the entry program shown in FIG. 6 of the above embodiment. Program # 1 → Program # 2 → Program # 3 → Program # 4 → Program # 5 → Program # 6 → Program # 7 → Program # 1・ ・
It suffices to go around the ring like this.

  Here, the reason why it is assigned to the upper left key is to enable continuous execution from the program selection to the program switching in the embodiment without releasing the remote control key. Also, the reason for switching to wipe instead of instantaneously is that it is very easy for the user to understand that the screen control and remote control operation are unified by unifying the wipe direction and the direction of pressing the remote control key to the “left direction”. Intended to be action.

Also, as shown in FIG. 10A, when the child screen A is selected and displayed in focus, and the control action of the selection screen is tiling screen development in step S310 of FIG.
Multi-directional keys
Right key → Tiling expansion of sub-screen A Remaining keys → Assign invalid.

Thus, when the right key is pressed, the program entered in the sub-screen A is tiled and expanded as shown in FIG. 10C in step S111. The tiling expanded screen is an entry program other than the program displayed on the sub-screen A as a quasi-video, program # 2 (update) → program # 2 (capture) → program # 3 (update) → program # 3 (Capture) → Program # 4 (Update) → Program # 4 (Capture) → Program # 5 (Update) → Program # 5 (Capture) → Program # 6 (Update) → Program # 6 (Capture) → Program # 7 ( Update)-> Program # 7 (Capture)-> Program # 2 (Update) ...
Update like this.

  Here, the reason for assigning to the right key is that the tiling screen unfolding direction and the pressing direction of the remote control key are unified to the “right direction”, so that a sense of unity between the screen control and the remote control operation is born. It is intended to be easy to understand.

This allows the user to see more program information on the screen, but if the tiling screen can be moved in focus, it is possible to select a program from the tiling split screen. Become. The remote control method at this time also applies the same means as the method described above. For example, as shown in FIG. 10D, if focus is selected on a child screen G of a screen divided into six screens, focus movement to another tiling child screen is
Multi-directional key
Left key → For selecting sub-screen F Upper-left key → For selecting sub-screen C Up key → For selecting sub-screen D Upper-right key → For selecting sub-screen E Right key → For selecting sub-screen H Remaining keys → Invalid It can be realized by assigning directly to the moving direction from the tiling focus child screen. This assignment is updated in the same manner every time the focus moves. Similarly to the above embodiment, the selected screen can be enlarged and displayed on the entire screen by pressing the enter key while the tiling screen is displayed in focus. With this series of actions, you can quickly and easily select your favorite program on the multi-screen and bring it to the full-screen display even for programs entered in the hidden layer that is not displayed on the multi-screen. Can continue.

(Third embodiment)
In the first and second embodiments, the intuitive remote control operation method has been described in which the multi-screen keys and the multi-directional keys of the remote control are in one-to-one correspondence. In this method, all the remote control rules are unified with simple rules, so that the user can easily adapt to the operating environment. In other words, once you get used to the operation method, you can perform remote control operation without sight line movement. However, no matter how simple the rules are applied, it is customary not to know how to operate the first operation. This is the same for any operating device.

  Therefore, in the present embodiment, as a user operation support when performing the proposed remote control first, an example in which the operation navigation screen is executed by GUI drawing is shown in FIG. This will be described below using an image diagram of the operation navigation display.

  When the user presses the operation navigation button in step S400, the GUI drawing method for displaying the operation navigation screen as shown in FIG. 12 in step S401 can be easily realized by the method described in the above embodiment.

  If the screen layout is changed or the screen control is changed in step S402, the operation navigation screen display is updated in step S405. This means that the multi-directional key assignment image described with reference to FIGS. 9 and 10 of the embodiment is updated as it is as the GUI screen of the operation navigation.

  If the user learns the simple remote control rules of this embodiment by the operation navigation and determines that the display of the operation navigation is unnecessary, the operation navigation screen is displayed in step S404 if the operation navigation button is turned OFF in step S403. Hidden.

  By adding such a function capable of temporarily displaying the operation navigation on the GUI, the user can easily clear the acquisition of the initial stage of the simple operation rule of the present proposal.

1 is a block diagram of a display system according to the present invention. It is an image figure of superposition synthesis. It is a flowchart of initialization operation | movement. It is a flowchart of the filtering process of an entry program. It is an example of the multi-screen layout of a present Example. It is an image figure of the program entry method to RAM14. It is an image figure of 2 screen control by the conventional remote control. It is a flowchart of a direct screen control remote control. It is an image figure of a multi-screen layout and multidirectional key assignment. It is an image figure of multi-directional key assignment at the time of screen control of a selection screen. It is a flowchart of operation navigation display. It is an image figure of operation navigation display.

Explanation of symbols

1 Antenna (parabolic antenna)
2-1, 2-2, 2-3, 2-4 Tuner section 3-1, 3-2, 3-3, 3-4 Demodulator section 4-1, 4-2, 4-3, 4-4 Multiplexer 5-1, 5-2, 5-3, 5-4 Video decoder 6-1, 6-2, 6-3, 6-4 Enlargement / reduction unit 7-1, 7-2, 7-3, 7- 4 Memory Control Unit 8-1, 8-2, 8-3, 8-4 Memory 9 Combining Unit 10 Display Control Unit 11 Display Device 12 Control Unit 13 ROM
14 RAM
15 GUI generation unit 16 Remote control light receiving unit 17 Remote control

Claims (7)

  In a multi-screen display device having multi-screen composition means that can receive input image data from a plurality of video sources and simultaneously display and display them on a single display, and a screen control means using a remote control equipped with multi-directional keys, the configuration screen is not selected. In the multi-screen display of the state, assign the multi-directional key so that the positional relationship of the multi-directional key of the remote control and the layout of the entire screen is the same, and press the multi-directional key corresponding to the direction position of the screen, A remote control method for multi-screen display, wherein the screen is selected directly.   In a multi-screen display device having multi-screen composition means capable of receiving input image data from a plurality of video sources and simultaneously displaying them on a single display, and a screen control means by a remote controller having multi-directional keys, the configuration screen is selected. In multi-screen display, multi-directional keys are assigned so that the positional relationship between the multi-directional keys on the remote control and the screen layout in the direction in which the selected screen is operated is the same. A remote control method for multi-screen display, in which direct operation of the screen is performed by pressing a direction key.   3. The remote control control method for multi-screen display according to claim 1, wherein the assignment of the multi-directional keys can be changed according to a change in a screen layout or a screen control method.   3. The remote control control method for multi-screen display according to claim 2, wherein when the screen control for switching the image by wiping from the selected screen is performed, the wiping direction and the selection direction of the multi-directional key are assigned in the same direction. .   3. The multi-screen display according to claim 2, wherein when the screen control is performed to switch the video by tiling development from the selected screen, the tiling development direction and the selection direction of the multidirectional key are assigned in the same direction. Remote control method.   The function of combining and displaying the operation support screen showing the multi-directional key assignment, and updating and displaying the operation navigation whenever the screen layout changes or the screen control method changes. A remote control method for multi-screen display as described in 1 and 2.   8. The remote control control method for multi-screen display according to claim 7, wherein the operation support screen showing multi-directional key assignment can be switched between display and non-display by user ON / OFF control.

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