JP2001157126A - Digital television broadcasting receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital television broadcasting receiver, capable of outputting a video signal in which onscreen display video is superimposed on a received video signal from an output terminal for video recording at an arbitrary timing desired by a user. SOLUTION: This receiver is provided with an output terminal for video recording only that normally outputs only the received video signal, an onscreen display video recording key provided in a remote control transmitter and a video recording output switching means that outputs the video signal, in which the onscreen display video is superimposed on the received video signal, on the basis of the operation of the onscreen display video recording key to the output terminal exclusive for video recording.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a digital television broadcast receiver.

[0002]

2. Description of the Related Art In a general analog television broadcast receiver,
Viewer operations such as channel numbers, volume display, and various menus are performed by on-screen display displayed on the same screen as a received video to improve operability. However, since on-screen display hinders viewing of the video of a program, it is not normally output from a dedicated recording output terminal.

[0003] In a digital television broadcast receiver, various operation screens are displayed on-screen, and additional information such as a title, a description of a program multiplexed on a radio wave, and an introduction of a performer is acquired and displayed on-screen. It is being done. As the display means for displaying additional information such as the title of the program, the description of the program, and the introduction of the performers, the same display means for displaying the operation screen such as a menu is used. The on-screen display of additional information, such as explanations and introductions of performers, is handled in the same manner as the on-screen display of operation screens such as menus, and is not output from the recording-only output terminal.

[0004] However, if the on-screen display of the additional information such as the title and description of the program can be recorded together with the video of the program, there is an advantage that the title and contents of the program can be easily grasped during reproduction. .
Therefore, it is conceivable that these on-screen displays are superimposed on the received video and output from the recording-only output terminal only for a certain period of time at the beginning of the program.

[0005] However, the additional information multiplexed on the radio wave is not limited to the title and description of the program. For example, if you select a specific runner while watching a live marathon,
Interactive services according to user preferences, such as displaying the runner's profile on-screen, are also being considered. It is convenient if the on-screen display corresponding to the interactive service according to the user's preference can be recorded. However, when the on-screen display according to the interactive service according to the user's preference is performed,
Since the user cannot know in advance, the timing for superimposing the on-screen display on the received video output from the recording-only output terminal cannot be preliminarily programmed.

It is conceivable that the on-screen display is always superimposed on the received video output from the recording output terminal. However, the operation screen required for displaying the on-screen display to be recorded is recorded. There is no point in providing a dedicated recording output terminal.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a digital television broadcast capable of outputting a video signal in which an on-screen display video is superimposed on a received video signal at an arbitrary timing desired by a user from a recording-only output terminal. It is intended to provide a receiver.

[0008]

A digital television broadcast receiver according to the present invention demodulates a video of a program from a received radio wave of a digital television broadcast and displays it as a received video and acquires additional information multiplexed on the radio wave. In a digital television broadcast receiver equipped with a function of displaying on-screen on the same screen as the received video, a recording-only output terminal that outputs only the received video signal at all times, and an on-board provided in a remote control transmitter A screen output recording key, and recording output switching means for outputting a video signal in which an on-screen display video is superimposed on a received video signal to a recording dedicated output terminal based on an operation of the on-screen display recording key. And

As the recording output switching means, for example, a means for outputting a video signal in which an on-screen display video is superimposed on a received video signal to a recording-dedicated output terminal while the on-screen display recording key is pressed is used. .

As the recording output switching means, for example, a video signal in which the on-screen display video is superimposed on the received video signal is recorded only after the on-screen display recording key is pressed until a predetermined time elapses. An output terminal is used.

It is preferable to provide means for controlling the predetermined time based on the content of the currently displayed on-screen display or the size of the display area.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration of a digital television broadcast receiver having a function of receiving CS digital broadcast.

A CS broadcast wave using a communication satellite (CS) is sent to a tuner 2 via an antenna 1 and subjected to high-frequency processing and demodulation. The output from tuner 2 is DE
The packet is sent to the MUX circuit 3 and the packet is decoded.

In the DEMUX circuit 3, the packet is
It is separated into MPEG data and additional information. DEMUX
The MPEG data separated by the circuit 3 is sent to the AV decoder 4. The additional information separated by the DEMUX circuit 3 is sent to the system controller 10 and stored.

The AV decoder 4 demodulates the MPEG data sent from the DEMUX circuit 3. AV decoder 4
The video signal obtained by the above is sent to the multiplexers 6 and 16 via the video processing circuit 5. The audio signal obtained by the AV decoder 4 is sent to a speaker via an audio processing circuit 8 and an audio output circuit 9.

The system controller 10 has a timer circuit 13. The system controller 10 includes:
A remote control signal from a remote control transmitter 11 is input via a remote control light receiver 12. System controller 10
Sends information for tuning to the tuner 2 and the DEMUX circuit 3. Further, the system controller 10 sends an OSD control signal for causing the display device to display various operation screens and additional information on-screen,
Send to The OSD display circuit 14 generates display data of various operation screens and additional information, and sends them to the multiplexer 6 and the OSD switch 15 as OSD signals. The OSD switch 15 is on / off controlled by the system controller 10.

The multiplexer 6 superimposes the OSD signal sent from the OSD display circuit 14 on the video data output from the video processing circuit 5, and sends it to the video output circuit 7. The video signal output from the video output circuit 7 is sent to a display.

When the switch 15 is on, O
The OSD signal output from the SD display circuit 14 is sent to the multiplexer 16. The multiplexer 16 superimposes an OSD signal sent from the OSD display circuit 14 on the video data output from the video processing circuit 5 and sends the OSD signal to the recording-dedicated output terminal 17.

When the user wants to display the additional information on the screen, the user uses the remote control transmitter 11 to perform an input operation necessary for displaying the additional information on the screen. A remote control signal corresponding to an input operation performed by the user is output from the remote control transmitter 11, and is input to the system controller 10 via the remote control light receiver 12.

The system controller 10 sends an OSD control signal for displaying additional information to the OSD display circuit 14 based on a signal from the remote control light receiver 12. O
The SD display circuit 14 generates display data corresponding to the additional information desired by the user based on the OSD control signal, and then outputs it as an OSD signal. The OSD signal is sent to the multiplexer 6, where the OSD signal is superimposed on the video data output from the video processing circuit 5 and sent to the video output circuit 7. As a result, an image corresponding to the additional information is displayed on-screen on the display.

The ON / OFF of the OSD switch 15 is controlled as follows. When the user is pressing a specific key provided on the remote control transmitter 11,
From 1, a remote control signal corresponding to the specific key is output and input to the system controller 10 via the remote control light receiver 12. The system controller 10 outputs an OSD switch control signal for turning on the OSD switch 15 based on a signal from the remote control light receiver 12. As a result, the OSD switch 15 turns on.

That is, when the user does not press a specific key provided on the remote control transmitter 11, the OSD switch 15 is off and only the received video signal is output to the recording dedicated output terminal 17. While the user is pressing a specific key provided on the remote control transmitter 11,
The SD switch 15 is turned on, and a signal in which the OSD signal is superimposed on the received video is sent to the recording dedicated output terminal 17.

Hereinafter, a specific operation example will be described.

FIG. 2 shows the appearance of the remote control transmitter 11.

This remote control transmitter 11 has a power key 21, a channel up / down key 22, a volume key 23, and a numeric keypad 24, as in the case of a remote control transmitter of a normal analog television broadcast receiver. A menu key 31 for displaying, up / down / left / right keys 32 for moving a cursor, a decision key 33 for deciding a selected item, a program information key 34 for displaying program information,
An additional information key 35 for displaying additional information and an information recording key (on-screen display recording key) 36 for recording the additional information display are provided.

3 to 11 show operation examples by the user.

When the user presses the menu key 31, FIG.
Is displayed on the screen.

When "genre search" is selected from the submenu for "program related" on the menu screen, FIG.
The genre search menu screen shown in FIG.
When "Sports" is selected on the genre search menu screen and the search button is pressed, a search result list screen as shown in FIG. 5 is displayed.

On the search result list screen, after moving the cursor to the desired program currently being broadcast with the up / down / left / right keys 32 (after selecting the desired program), the program information key 34 is pressed. As shown in FIG. 6, the details of the selected program are displayed on-screen. Here, it is assumed that the “Japan-US Rival Baseball Round 2” of channel number “100” has been selected.

When the channel selection button is pressed on the screen of FIG. 6, the selected program is selected, and as shown in FIG. 7, the channel number is displayed together with the received video of the selected program. At this time, only the received video signal of the selected program is output from the recording dedicated output terminal 17. here,
The received video signal output from the dedicated recording output terminal 17 is
It is assumed that an operation for recording on the TR is performed.

When the additional information can be received during the program viewing, an additional information icon 41 is displayed on the display screen as shown in FIG. 8 to notify the user that the additional information can be received now.

To display the additional information, the user presses the additional information key 35. Then, for example, FIG.
Is displayed on-screen. Here, selection items relating to the information of the next batter are displayed. Since such additional information is displayed on the screen, it is not superimposed on the signal from the recording-only output terminal 17 and is not recorded on the VTR.

On the screen of FIG. 9, "Profile"
Is selected, the next batter's profile is displayed on-screen, as shown in FIG. When the user wants to record this on-screen display, he presses the information recording key 36 of the remote control transmitter 11. When the information recording key 36 of the remote control transmitter 11 is pressed, the OSD switch 15 is turned on, and the on-screen display is superimposed on the signal from the recording dedicated output terminal 17, so that the on-screen display is also recorded on the VTR together with the received video. Will be. The OSD switch 15 is connected to the remote control transmitter 11
Is turned on while the information recording key 36 is pressed.

As described above, when the user presses the information recording key 36 while the additional information to be recorded is displayed on the screen, the on-screen display can be recorded. For this reason, it is possible to record only the on-screen display that the user really wants to record, excluding unnecessary information and the operation process in the middle of the on-screen display.

When the return button is pressed on the screen of FIG. 10, the screen returns to the original image of only the received video as shown in FIG.

Although the example in which the baseball program is selected has been described, when the marathon program is selected, a member list of the head group, the current position, the estimated time, and the like can be displayed as additional information. . Normally, the additional information has a tree structure. When the cursor is moved to one of the leading groups with the up / down / left / right keys and the enter key is pressed, the profile of the member can be displayed on-screen.

When a movie program is being viewed, by selecting a specific actor with a cursor in an arbitrary scene, the profile of the actor is displayed,
In a favorite location scene, it is also possible to display an explanation of the location. Furthermore, in a cooking program, naturally, the recipe is selected, by selecting the ingredients written in the recipe with the cursor, a more detailed explanation is displayed on the screen, or a cooking method that can not be understood just by looking at the screen It is also possible to display a detailed explanation on-screen. In a series such as a liberal arts course, a desired time in a future broadcast schedule can be selected by a cursor on a calendar, and a schedule table of the time can be displayed on-screen.

As described above, various services for realizing interactive display of additional information according to the user's request are conceivable, but since the user's request is diverse,
In the method of recording all such additional information on-screen and recording it, the received image is hidden, which is cumbersome. In addition, since the user's request may be diverse, it is considered that such additional information also has a menu-type tree structure, but operations that do not require recording before the really necessary information is displayed on the screen The on-screen display of the screen is performed, and it is considered that recording up to this portion is still troublesome for the user.

In the above embodiment, since only the on-screen display that the user really wants to record can be recorded out of the on-screen display, these problems can be solved.

In the above embodiment, the remote control transmitter 11
The OSD switch 15 is controlled to be turned on only while the information recording key 36 is pressed. However, when the information recording key 36 of the remote controller transmitter 11 is pressed (one push), the control may be performed so that the OSD switch 15 is turned on for a predetermined set time.

That is, when the user attempts to record the currently displayed on-screen display, the remote control transmitter 1
When one information recording key 36 is one-pushed, the system controller 10 turns on the OSD switch 15.
As a result, O output from the OSD display circuit 14 is output.
The SD signal is superimposed on the video signal output from the video processing circuit 5 and is output to a dedicated recording output terminal 17.
Output from

On the other hand, the system controller 10
At the same time when the D switch 15 is turned on, a timer control signal is output to the timer circuit 13 to instruct the timer circuit 13 to measure a set time. The timer circuit 13 receives this,
Start timing the set time. Then, when the set time has elapsed, timer information indicating that fact is notified to the system controller 10. In response, the system control 10 turns off the OSD switch 15. As a result, the superimposing process of the OSD signal to the output from the video processing circuit 5 is released, and only the received video output from the video processing circuit 5 is output from the recording dedicated output terminal 17.

The measurement time (set time) measured by the timer circuit 13 may be set longer or shorter according to the size and contents of the on-screen display area. System controller 10
For example, when the area of the on-screen display is large or when the number of characters to be displayed is large, the measurement time instructed to the timer circuit 13 is set long in order to increase the recording time of the on-screen display. This allows the user to
Sufficient time to check the contents can be secured.

[0045]

According to the present invention, a video signal in which an on-screen display video is superimposed on a received video signal can be output from a recording-only output terminal at an arbitrary timing desired by the user.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a digital television broadcast receiver having a function of receiving CS digital broadcast.

FIG. 2 is a plan view showing an appearance of a remote control transmitter.

FIG. 3 is a schematic diagram showing an operation example by a user.

FIG. 4 is a schematic diagram showing an operation example by a user.

FIG. 5 is a schematic diagram showing an operation example by a user.

FIG. 6 is a schematic diagram showing an operation example by a user.

FIG. 7 is a schematic diagram showing an operation example by a user.

FIG. 8 is a schematic diagram showing an operation example by a user.

FIG. 9 is a schematic diagram showing an operation example by a user.

FIG. 10 is a schematic diagram illustrating an operation example by a user.

FIG. 11 is a schematic diagram showing an operation example by a user.

[Explanation of symbols]

 Reference Signs List 1 antenna 2 tuner 3 DEMUX circuit 4 AV decoder 5 video processing circuit 6, 16 multiplexer 10 system controller 11 remote control transmitter 12 remote control light receiver 13 timer circuit 14 OSD display circuit 15 OSD switch 17 dedicated recording output terminal 36 information recording key (ON Screen display recording key)

Claims (4)

[Claims] 1. A function of demodulating a video of a program from a received radio wave of a digital television broadcast and displaying the demodulated video as a received video, acquiring additional information multiplexed on the radio wave, and displaying on-screen on the same screen as the received video. For digital TV broadcast receivers equipped with functions, always operate the dedicated recording output terminal that outputs only the received video signal, the on-screen display recording key provided on the remote control transmitter, and the on-screen display recording key. A recording output switching means for outputting a video signal in which an on-screen display video is superimposed on a received video signal to a recording-dedicated output terminal based on the received video signal. 2. A recording output switching means for outputting a video signal in which an on-screen display video is superimposed on a received video signal to a recording-dedicated output terminal while the on-screen display recording key is pressed. 2. The digital television broadcast receiver according to 1. 3. A recording output switching means for outputting a video signal in which an on-screen display video is superimposed on a received video signal until a predetermined set time elapses after the on-screen display recording key is pressed, for exclusive recording. The digital television broadcast receiver according to claim 1, wherein the digital television broadcast receiver outputs the signal to a terminal. 4. The digital device according to claim 3, further comprising means for controlling the predetermined time based on the content of the currently displayed on-screen display or the size of the display area. Television broadcast receiver.