JP4698332B2 - Broadcast receiving apparatus and multi-screen operation method - Google Patents

Description

  The present invention relates to a broadcast receiving apparatus that receives a broadcast and outputs a video, and a multi-screen operation method.

  There has been proposed a broadcast receiving apparatus that includes a plurality of tuners and a two-screen synthesis circuit, performs scale conversion and two-screen synthesis of images received by two tuners, and displays them on a single monitor (see Patent Document 1). .

  FIG. 3 is a state transition diagram for explaining a conventional two-screen operation method and an explanatory diagram showing a remote control transmitter 21 used for this operation. The remote control transmitter 21 includes three keys (two screen keys, operation switching keys, and screen size keys) as two screen dedicated keys. The two-screen key is a key for instructing start and end of two screens. The operation switching key is a key for instructing switching of a selection screen (screen to be operated: operation effective screen). The screen size key is a key for switching the screen size of the selection screen. The cursor operation in the selection screen can be performed using the up / down / left / right decision keys (hereinafter, this control example is referred to as a first conventional example).

FIG. 4 is a state transition diagram for explaining another conventional two-screen operation method and an explanatory diagram showing a remote control transmitter 22 used for this operation. The remote control transmitter 22 has only a two-screen key as a two-screen dedicated key. In this operation method, the left and right keys are keys for instructing switching of the selection screen. In addition, the up / down key is a key for switching the screen size of the selection screen. In the two-screen state, the cursor operation in the selection screen cannot be performed. When the cursor operation in the selection screen is performed, it is necessary to return to the single screen display (hereinafter, this control example is referred to as a second conventional example).
JP-A-11-252474

  In the first conventional example, the switching operation of the selection screen and the cursor operation in the selection screen can be performed with separate keys, so there is an advantage that the number of key operations is small, while the remote control transmitter 21 is dedicated to many two screens. You will have a key.

  In the second conventional example, the number of keys for exclusive use of two screens is small, but in the two-screen state, the cursor operation in the selection screen cannot be performed, and when the cursor operation in the selection screen is performed, it is necessary to return to the one-screen display.

  As a two-screen operation method related to the second conventional example, there is a method of realizing a selection screen switching operation and a cursor operation in the selection screen by using a dual-purpose key. In this method, for example, when the menu key of the remote control transmitter is pressed in the two-screen display state shown in FIG. 4, the menu screen is superimposed on the screen. On the menu screen, an item for selecting whether to use the up / down / left / right determination key as a two-screen operation key or a cursor operation key is provided. If the user selects “Use Up / Down / Left / Right Decision Key as 2 Screen Operation Key” on the menu screen, the same operation as in the second conventional example described above can be performed. If "Use as key for" is selected, the cursor operation can be performed using the up / down / left / right decision keys. However, such an operation method still increases the number of key operations.

  In view of the circumstances described above, an object of the present invention is to provide a broadcast receiving apparatus and a multi-screen operation method capable of reducing the number of operation keys dedicated to a plurality of screens and reducing the number of key operations. And

  In order to solve the above-described problem, the broadcast receiving apparatus of the present invention is configured to synthesize a plurality of screens when detecting an operation of a plurality of screen keys instructing a plurality of screens in a broadcast receiving apparatus that receives a broadcast and outputs a video. Means for executing processing, and when the multi-screen key is pressed in the multi-screen composition state, the screen returns to the one-screen display state, while when a specific key other than the multi-screen key is pressed in the multi-screen composition state, the selection screen A cursor operation mode in which the cursor movement and determination within the cursor operation mode can be performed by operating the up / down / left / right determination keys, and processing to return to the multiple screen composition state when the multiple screen key is pressed in the state of the cursor operation mode; Means for changing the screen size and switching the selected screen when the pressing of the up / down / left / right key is detected in the multi-screen composition state. Characterized in that was.

  In the above configuration, when the specific key is pressed in a multi-screen composition state, the cursor operation mode in which the cursor can be moved and determined in the selection screen can be operated by operating the up / down / left / right decision keys. The number of keys can be reduced, and the number of key operations can be reduced.

  In the broadcast receiving apparatus having the above configuration, the specific key may be a determination key provided in a controller. Further, in the broadcast receiving apparatus configured as described above, a mark image for informing the user of the selection screen is configured to be displayed. The mark image in the multi-screen composition state and the mark image in the cursor operation mode And may be configured to make a difference.

  Also, the multi-screen operation method of the present invention performs multi-screen composition when an operation of a multi-screen key for instructing multi-screen composition is performed, and one screen when the multi-screen key is pressed in a multi-screen composition state. Returning to the display state, when a specific key other than the multi-screen key is pressed in the multi-screen composition state, the cursor operation mode can be performed by operating the up / down / left / right decision keys in the selection screen. When the multi-screen key is pressed in the state, the screen returns to the multi-screen composite state, and when the up / down / left / right key is pressed in the multi-screen composite state, the screen size is changed and the selection screen is switched. Features.

  In the above method, when the specific key is pressed in the multi-screen composition state, the cursor operation mode can be performed by operating the up / down / left / right decision keys in the selection screen. The number of keys can be reduced, and the number of key operations can be reduced.

  In the above-described multi-screen operation method, the specific key may be a determination key provided in the controller. In these methods, the display of the mark image for notifying the user of the selection screen may be made different between the multi-screen composition state and the cursor operation mode.

  According to the present invention, the number of operation keys dedicated to a plurality of screens can be reduced, and the number of key operations can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2.

  As shown in FIG. 1, the broadcast receiving apparatus of this embodiment includes three tuners 1A, 1B, and 1C. The three tuners 1A, 1B, and 1C are analog tuners, digital tuners, or a mixture thereof. The analog tuner receives an analog broadcast wave having a selected frequency and demodulates it to generate a video signal. Further, the digital tuner includes a demodulation circuit, a deinterleave circuit, an error correction circuit, and the like, thereby demodulating the selected digital modulation signal and outputting a transport stream. Further, the digital tuner includes a demultiplexer (DEMUX) (not shown). The demultiplexer separates the transport stream into an MPEG2 (Moving Picture Experts Group 2) video stream, an audio stream, and PSI / SI (Program Specific Information / Service Information). The demultiplexer supplies a video stream and an audio stream to an AV decoder (not shown), and supplies program information included in the PSI / SI to the system controller 15. The AV decoder generates a video signal and an audio signal.

  The signal switch 2A takes out the video signal V1 and the audio signal A1 output from the operating tuner among the three tuners 1A, 1B, and 1C. The signal switcher 2B selects the video signal V2 and the audio signal A2 output from the other operating tuner in the two-screen mode. Switching in these signal switches 2A and 2B is controlled by the system controller 15.

  The selector 3 outputs the audio signal A1 in the normal mode, and selects and outputs one of the audio signal A1 and the audio signal A2 in the two-screen mode. Voice selection in the selector 3 is controlled by the system controller 15.

  The two-screen synthesis circuit 4 outputs the video signal V1 in the normal mode, while synthesizing and outputting the video signal V1 and the video signal V2 in the two-screen mode. For example, when the two-screen synthesis circuit 4 receives a two-screen execution command from the system controller 15, the two-screen synthesis circuit 4 synthesizes the two video signals V 1 and V 2 using the timing signal from the deflection circuit 7 as a signal indicating the boundary of screen division. The two-screen composition process itself may be any process.

  The video processing circuit 5 superimposes the additional video from the OSD circuit 16 on the one-screen video signal in the normal mode or the two-screen video signal in the two-screen mode. The OSD circuit 16 is a circuit that generates video information based on character information and color information instructed to be output from the system controller 15. The OSD circuit 16 uses the OSD circuit 16 to display EPG (Electronic Program Guide) based on program information, data broadcast display, Menu screen display, message display, and highlight display (this will be described later) indicating a selection screen (operation target screen) in the two-screen mode can be performed.

  The video output circuit 6 converts the video signal output from the video processing circuit 5 into, for example, an RGB signal and supplies it to a monitor 9 (in this example, a CRT is used). The monitor 9 is driven by the RGB signals and signals from the deflection circuit 7 and the high voltage circuit 8. The video signal output from the video processing circuit 5 is supplied to the video output terminal 10.

  The sound processing circuit 11 receives the sound signal output from the selector 3 and generates, for example, a right (R) sound analog signal and a left (L) sound analog signal. The audio output circuit 12 includes an amplifier and drives the speaker 13 with the audio signal. The audio signal output from the audio processing circuit 11 is supplied to the audio output terminal 14.

  In a memory (not shown) (RAM, EEPROM, flash memory, ROM, etc.), in addition to EPG program information, contents (setting information) set by a user on a menu screen described later are stored.

  A remote control transmitter (remote controller) 17 is a transmitter for sending a command to the broadcast receiving apparatus. The remote control transmitter 17 includes various keys as shown in FIG. When a key provided on the remote control transmitter 17 is operated, signal light (remote control signal) indicating a command corresponding to the key is transmitted from a light emitting unit (not shown). The remote control light receiver 18 receives the signal light output when the key of the remote control transmitter 17 is operated, converts it into an electrical signal, and gives it to the system controller 15. The system controller 15 performs code analysis based on the remote control signal, and gives, for example, a channel selection command, a cursor movement command, and the like to the tuner and the OSD circuit.

  The system controller 15 performs overall control in the broadcast receiving apparatus. In particular, as control according to the present invention, the system controller 15 executes processing relating to a two-screen display operation as described below.

  FIG. 2 is a state transition diagram for explaining the two-screen operation method of the embodiment of the present invention and an explanatory diagram showing the remote control transmitter 17 used for this operation. The remote control transmitter 17 is provided with only a two-screen key as a two-screen dedicated key, like the remote control transmitter 22 described in the conventional section.

  When the system controller 15 detects that the two-screen key is pressed in the state 1 (one-screen display state) shown in FIG. 2, the system controller 15 executes the two-screen composite display. This two-screen composite display state is referred to as state 2. At this time, the OSD circuit 16 is used to draw a frame-like highlight on one screen (here, the screen at the time of one screen display) in order to inform the user which is the selection screen.

  When the system controller 15 detects that the two-screen key is pressed in the state 2, the system controller 15 performs processing to return to the state 1. When the enter key is pressed in state 2, the state transitions to state 3 where a cursor operation can be performed in the selection screen. That is, in the state 3, the system controller 15 treats the remote control signal by pressing the up / down / left / right decision key as a command for cursor movement and item decision. The system controller 15 instructs the OSD circuit 16 to redraw the highlight in a dotted frame shape when the state 3 is reached. Since the highlight has a dotted frame shape, the user can determine that the cursor can be operated. The color of the frame may be changed without being changed to the dotted frame shape. When the pressing of the two-screen key is detected in the state 3, the state returns to the state 2.

  The system controller 15 gives a command to the two-screen composition circuit 4 to increase the size of the selection screen when detecting the pressing of the upper key in the state 2, and decreases the size of the selection screen when detecting the pressing of the lower key. A command is given to the two-screen composition circuit 4. Further, when the system controller 15 detects that the right key is pressed in the state 2, the system controller 15 treats the right screen as the selection screen (highlights drawing on the right screen), and detects the left key pressed in the state 2. The left screen is treated as a selection screen (highlight drawing is performed on the right screen).

  That is, according to the two-screen operation method, the transition from the state 2 to the state 3 can be performed by a single key operation rather than a selection from the menu. Since this key is an existing decision key, the number of keys dedicated to two screens can be reduced. In the above example, the enter key is used to make a transition from state 2 to state 3. However, a transition from state 2 to state 3 is made using another key, for example, a key labeled “cursor operation”. You may do it. Even in such a case, the number of keys dedicated to the two screens is reduced by one compared to the first conventional example, and the number of keys is increased compared to the second conventional example, but the trouble of calling and resetting the memory screen is reduced. Disappear.

  In the above example, the frame-like highlight is displayed as the mark image for indicating the selection screen. However, the present invention is not limited to this. For example, characters may be displayed near the lower position of the selection screen. For example, in state 2, a character such as “selection screen” may be displayed at the lower position of the selection screen, and in state 3, a character such as “cursor operation is possible” may be displayed at the lower position of the selection screen. Further, although the tuner is shown as a plurality of video sources, it is also possible to perform two-screen synthesis of an input video from an external device (for example, a DVD player) and a video from the tuner. Of course, not limited to two screens, for example, four-screen composition can be performed, and a multi-screen operation method can be applied in this four-screen composition display.

It is the block diagram which showed the broadcast receiver of embodiment of this invention. It is the state transition diagram explaining the 2 screen operation method of embodiment of this invention, and explanatory drawing which showed the remote control transmitter used for this operation. It is the state transition diagram explaining the conventional 2 screen operation method, and explanatory drawing which showed the remote control transmitter used for this operation. It is the state transition diagram explaining the conventional 2 screen operation method, and explanatory drawing which showed the remote control transmitter used for this operation.

Explanation of symbols

1A, 1B, 1C Tuner 2A, 2B Signal switcher 3 Selector 4 2-screen composition circuit 15 System controller 16 OSD circuit

Claims (6)

In a broadcast receiving apparatus that receives a broadcast and outputs video, a unit that executes a multi-screen composition process when detecting an operation of a multi-screen key that instructs multi-screen composition, and the multi-screen key in a multi-screen composition state When the key is pressed, the screen returns to the single screen display state. On the other hand, when a specific key other than the multi-screen key is pressed in the multi-screen composition state, the cursor can be moved and determined in the selection screen by operating the up / down / left / right determination keys. A mode for processing to return to the multi-screen composite state when the multi-screen key is pressed in the state of the cursor operation mode, and when pressing of the up / down / left / right key is detected in the multi-screen composite state Means for changing the screen size and switching the selection screen. 2. The broadcast receiving apparatus according to claim 1, wherein the specific key is a determination key provided in a controller. 3. The broadcast receiving apparatus according to claim 1 or 2, wherein a mark image for notifying a user of a selection screen can be displayed, and the mark image and the cursor operation mode in the multi-screen composition state. A broadcast receiving apparatus configured to make a difference from the mark image at the time of. When a multi-screen key for instructing multi-screen synthesis is operated, multi-screen synthesis is performed. When the multi-screen key is pressed in a multi-screen synthesis state, the screen returns to a single-screen display state. When a specific key other than the multi-screen key is pressed, the cursor operation mode in which the cursor can be moved and determined in the selection screen by operating the up / down / left / right determination key is entered, and the multi-screen key is pressed in this cursor operation mode. Sometimes the screen is returned to the multiple screen composition state, and when the up / down / left / right key is pressed in the multiple screen composition state, the screen size is changed and the selection screen is switched. 5. The multi-screen operation method according to claim 4, wherein the specific key is a determination key provided in a controller. The multi-screen operation method according to claim 4 or 5, wherein the display of the mark image for notifying the user of the selection screen is different between the multi-screen composition state and the cursor operation mode. A featured multi-screen operation method.

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