JPH10327430A - Telop display device by digital stereoscopic broadcast - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telop display device in which a telop such as an emergent broadcast is displayed on a screen during viewing a stereoscopic broadcast program without losing the stereoscopic sense of a stereoscopic video image. SOLUTION: A digital broadcast program is received by a tuner 2 through an antenna 1, and a separate circuit 3 separates the program into video data, telop data and audio data. When a CPU 7 discriminates the presence of the telop data, a telop data presence display circuit 16 is lighted and when a viewer views it and gives a command from a remote commander 14, a video display section 12 displaying a stereoscopic video image based on a right eye video image and a left eye video image is switched to allow the video image display section 12 to display telop information with a parallax added thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telop display apparatus for digital stereoscopic broadcasting, and more particularly to a telop for displaying characters and the like in telop in digital stereoscopic broadcasting in which left-eye and right-eye video signals are compressed and transmitted. It relates to a display device.

[0002]

2. Description of the Related Art Digital broadcasting using a 525 progressive scanning method (hereinafter referred to as non-interlaced digital broadcasting)
Using the system, one frame of progressive scanning (hereinafter, non-interlaced) is divided into upper and lower two blocks, and each block is provided with two interlaced scanning (hereinafter, interlaced) images for a total of two fields. There is a system in which two interlaced channels are converted to one non-interlaced channel by inserting the image of the above. Regarding such a digital broadcasting system, the present applicant has filed Japanese Patent Application No.
26721. By using this system, left and right video signals can be transmitted through one transmission path, and three-dimensional broadcasting can be realized.

[0003]

In the case of performing three-dimensional broadcasting in the above-mentioned three-dimensional broadcasting system, when a telop of emergency broadcasting such as typhoon information or earthquake information is displayed on the screen as three-dimensional information during viewing of the three-dimensional broadcasting program, it is displayed. There is a problem that it is difficult to adjust the parallax amount of the telop, and the stereoscopic effect of the stereoscopic video is impaired.

[0004] Therefore, a main object of the present invention is to provide a telop display device by digital stereoscopic broadcasting capable of displaying a telop such as an emergency broadcast on a screen while viewing a stereoscopic broadcast program without impairing the stereoscopic effect of a stereoscopic video. That is.

[0005]

The invention according to claim 1 is
In digital three-dimensional broadcasting in which a right-eye video signal and a left-eye video signal for displaying a stereoscopic video are transmitted, a storage unit that transmits telop information and is provided on the receiving side and stores the telop information, Display control means for reading, processing, and displaying telop information from the storage means in response to the request.

According to the invention of claim 2, the display control means of claim 1 switches and displays stereoscopic video and telop information based on the right-eye and left-eye image signals.

According to a third aspect of the present invention, the display control means of the first aspect superimposes and displays a stereoscopic video and telop information based on the right-eye and left-eye image signals.

In the invention according to a fourth aspect, the display control means according to any one of the first to third aspects includes a display for notifying the viewer of the telop information when the telop information is stored. Command means for commanding display of telop information while looking at the display is included.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the embodiments of the present invention, the premise of the present invention will be described. Non-interlaced digital broadcasting is described, for example, in "Development of CS Digital Broadcasting System for 525 Progressive Scanning Signals" (Urano,
Sakaguchi, Yamanaka, Tamura: Nippon Television Network Corporation: The Institute of Television Engineers of Japan: 1996.2.2.27), the detailed description of which is omitted here.

In digital broadcasting using CS (communication satellite), data transmission uses a data structure called an MPEG2 transport packet. Each packet has a packet identifier called PID (Packet Identification), and indicates an attribute of an individual stream of the packet. For example, assume that video data of a certain stereoscopic broadcast program is broadcast with PID = 100 and audio data is broadcast with PID = 200. Here, it is assumed that the telop information of the emergency broadcast generated during this program is broadcast with PID = 300.

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention. In FIG. 1, a signal from an antenna 1 is provided to a tuner 2 and selected. The digital broadcast data demodulated by the tuner 2 is supplied to a channel data separation circuit 3. The channel data separation circuit 2 separates the digital broadcast data into video data, telop data, and audio data by PID. The video data is supplied to the video data processing circuit 4, the telop data is supplied to the telop data processing circuit 5, and the audio data is supplied to the audio data processing circuit 6. The video data processing circuit 4 converts the video data into a displayable signal format, and
Is displayed on the video display unit 12 via the. In addition, the audio data processing circuit 6 converts the audio data into a signal format that can be output by the audio output unit 13 and provides the signal to the audio output unit 13.

The telop data processing circuit 5 is controlled by the CPU 7, and when telop data is received, the CP
U7 indicates that there is telop information in the telop information presence / absence display circuit 16. For example, the pilot lamp is turned on. The telop data processed by the telop data processing circuit 5 is stored in the telop memory 8. Also,
The video data processed by the video data processing circuit 4 is supplied to a parallax amount detection circuit 9, where the parallax amount between the left-eye video signal and the right-eye video signal is detected. The signal is added to the superposition circuit 11. When the presence / absence of telop data is displayed by the telop data presence / absence display circuit 16, the viewer operates the remote controller 14 and the signal is received by the remote controller reception circuit 15 and the C signal is received.
It is transmitted to PU7. The CPU 7 displays the telop information on the video display unit 12 according to the instruction.

FIG. 2 is a diagram showing an operation procedure for displaying telop data, FIG. 3 is a flowchart for explaining the operation of the embodiment of the present invention, and FIG. 4 is a diagram showing a stereoscopic video and a telop video according to the present invention. FIG. 4 is a diagram for explaining the relationship of FIG.

Next, a specific operation of the present invention will be described with reference to FIGS. The CPU 7 executes a program based on the flowchart shown in FIG. 3 and determines whether or not telop data has been received. This judgment is based on the CP
U7 is performed by determining a signal indicating that the telop data supplied from the channel data separation circuit 3 has been separated. If no telop data has been received, a stereoscopic video (3D video) is displayed on the video display unit 12 as shown in FIG.

When the CPU 7 determines that the telop data has been received, the telop data is stored in the telop memory 8 and the telop data presence / absence display circuit 16 is turned on as shown in FIG. 2B. And
The CPU 7 waits until a telop display command is received from the remote controller 14.

When the viewer determines that the telop data presence / absence display circuit 16 has been turned on as shown in FIG.
U7 determines that a telop display command has been received from the remote controller 14, and the superimposing circuit 11 switches from stereoscopic video to telop display as shown in FIG. And
The CPU 7 turns off the telop data presence / absence display circuit 16.

When the viewer operates the remote controller 14 again during the telop display, the CPU 7 causes the superimposing circuit 11 to switch from the telop display to the stereoscopic video shown in FIG.

In the above description, the CPU 7 switches from stereoscopic display to telop display by the superposition circuit 11 when a telop display command is given from the remote controller 14. However, the present invention is not limited to this. May be displayed in a superimposed manner.

FIG. 4 is a diagram for explaining an example in which a stereoscopic video and a telop display are displayed in a superimposed manner. In the example shown in FIG. 4, the screen of the current field is used as the image for the left eye, and the screen two fields before is used as the image for the right eye. In FIG. 4, an image in which a bird is flying is used as an example, and a three-dimensional image of a mountain in the background is displayed in the back, and the bird is displayed in the foreground. For this reason, the parallax of the bird protruding forward from the stereoscopic image of the background is detected, and the amount of parallax is adjusted so that the image of the bird is at the front. Further, the parallax amount of the telop is adjusted in order to display the position of the telop before the bird. The adjustment of the parallax amount is performed by the telop parallax generation circuit 10 shown in FIG.

FIGS. 5 and 6 are diagrams for explaining another embodiment of the telop display. In the example shown in FIG. 5, a dedicated area 19 for displaying a telop is provided in a lower area of the video display unit 18. In this case, a stereoscopic video is displayed on the video display unit 18, and the telop data is displayed two-dimensionally (2D) in the area 19 in response to a viewer's request.
When the telop data is displayed in the area 19, the stereoscopic video may be continuously displayed on the video display unit 18 or the stereoscopic video may be deleted.

FIG. 6 is provided with a dedicated display 20 for displaying telop data separately from the video display section 18. As the display, for example, a light-emitting diode or the like is used. Also in this example, the telop area 2
At 0, the telop data is displayed according to the request of the viewer. At this time, the stereoscopic video may be continuously displayed on the video display unit 18 or may be deleted.

[0022]

As described above, according to the present invention, telop information is sent separately from a video signal for stereoscopic display, the telop information is stored on the receiving side, and the telop information is stored in response to a viewer's request. Since the telop information is read and displayed, a telop such as an emergency broadcast can be displayed on the screen while viewing the stereoscopic broadcast program without impairing the stereoscopic effect of the stereoscopic video.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing an operation procedure for displaying telop data.

FIG. 3 is a flowchart for explaining the operation of the embodiment of the present invention.

FIG. 4 is a diagram for explaining a relationship between a stereoscopic video and a telop video according to the present invention.

FIG. 5 is a diagram illustrating an example in which a dedicated area for displaying a telop is provided in a lower area of a video display unit.

FIG. 6 is a diagram illustrating an example in which a special display unit for displaying a telop is provided in addition to a display unit for a stereoscopic video.

[Explanation of symbols]

 Reference Signs List 1 antenna 2 tuner 3 channel data separation circuit 4 video data processing circuit 5 telop data processing circuit 6 audio data processing circuit 7 CPU 8 telop memory 9 parallax amount detection circuit 10 telop parallax generation circuit 11 superposition circuit 12 video display unit 13 audio output Part 14 Remote control 15 Remote control signal receiving circuit 16 Telop data presence / absence display circuit

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yuji Yamamoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Eiji Nakayama 2-chome Keihanhondori, Moriguchi-shi, Osaka No. 5-5 Sanyo Electric Co., Ltd. (72) Inventor Shugo Yamashita Sanyo Electric Co., Ltd. 2-5-5 Keihanhondori, Moriguchi-shi, Osaka

Claims (4)

[Claims] 1. A digital stereo broadcast in which a right-eye video signal and a left-eye video signal for displaying a three-dimensional video are transmitted, wherein telop information different from the three-dimensional video is transmitted and provided on a receiving side. A telop display device for digital three-dimensional broadcasting, comprising: storage means for storing the telop information; and display control means for reading out the telop information from the storage means in response to a request from a viewer, and processing and displaying the telop information. 2. The digital stereo broadcast according to claim 1, wherein the display control means switches and displays a stereoscopic video based on the right-eye and left-eye image signals and the telop information. Telop display device. 3. The digital stereoscopic apparatus according to claim 1, wherein the display control unit superimposes and displays a stereoscopic video based on the right-eye and left-eye image signals and the telop information. Broadcast telop display device. 4. The display control means includes a display for notifying a viewer of the telop information when the telop information is stored in the storage means, and the viewer looks at the display and displays the telop information. 4. The telop display device according to claim 1, further comprising command means for commanding the display of digital terrestrial broadcasting.