CN1767625A - Teletext signal display device - Google Patents
Teletext signal display device Download PDFInfo
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- CN1767625A CN1767625A CN 200410080995 CN200410080995A CN1767625A CN 1767625 A CN1767625 A CN 1767625A CN 200410080995 CN200410080995 CN 200410080995 CN 200410080995 A CN200410080995 A CN 200410080995A CN 1767625 A CN1767625 A CN 1767625A
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Abstract
This invention relates to a teletext TV signal display device characterizing in separating teletext TV signals from TV signals to process them by imaging via routes different from TV signals so as to display the signals of the TV and the teletext TV in different regions of the picture. This invented display device contains the following devices: a teletext TV processor extracting teletext TV signals from input broadcast signals, a separator separating the teletext TV signals and TV signals and an image processor separating the signals in separated regions on the picture.
Description
Technical field
The present invention relates to teletext signal display device, it is characterized in that: from TV signal, isolate figure message TV signal, by the path different, it is carried out image processing, thereby TV signal and figure message TV signal can be presented in the zones of different of picture with TV signal.
Background technology
The system (system of PAL mode) that supports existing teletext (Teletext) only exports main screen signal to comprising the main screen signal of figure message TV signal, perhaps only exports figure message TV signal, perhaps two kinds of signals is mixed output simultaneously.
Fig. 1 is existing teletext signal display device structure chart.
As shown in the figure, existing teletext signal display device comprises with lower member:
Be used for will input RGB analog signal and the synchronizing signal analog/digital converter 10 that converts digital signal to;
Be used for isolating brightness and color signal, and convert thereof into the Video Decoder 11 of digital signal from Composite Video Broadcast Signal (CVBS) or TV (TV) vision signal;
Be used for isolating figure message TV signal, with the teletext processor 12 of rgb signal output from CVBS or TV vision signal;
Be used for interleaving signal is converted to the deinterlacer 13 of release of an interleave signal;
Have under the condition of compound follower the convergent-divergent signal of video signal and export two kinds of semiotic functions (for example, picture-in-picture: Picture In Picture, picture out picture: image processor 14 Picture Out Picture) simultaneously.
In the above-mentioned teletext processor 12, input CVBS or TV vision signal are perhaps imported the signal by above-mentioned Video Decoder 11 outputs similarly, above-mentioned teletext processor 12 output RGB analog signal and synchronizing signals.
The signal of above-mentioned Video Decoder 11 outputs is made of digital signal that is separated into brightness and color signal and synchronizing signal, and converts the release of an interleave signal in deinterlacer 13, is resent to image processor 14.
At this moment, figure message TV signal is only isolated figure message TV signal and with its output, perhaps it is mixed output from the signal of CVBS, TV vision signal or Video Decoder 11 outputs.
In this case, as shown in Figure 2, only export main screen signal, or as shown in Figure 3, only export figure message TV signal, or figure message TV signal and main screen signal are mixed output.
But under Fig. 2 and situation shown in Figure 3, on picture, can only see a kind of signal in figure message TV signal and the main screen signal, under situation shown in Figure 4, can not normally watch main screen signal and figure message TV signal.This is the deficiency that existing teletext signal display device exists.
In addition, the teletext picture generally has only literal, so the user is difficult to hold the information that transmits with figure message TV signal.This also is the deficiency that existing teletext signal display device exists.
Summary of the invention
The present invention is for addressing the above problem, and its objective is to provide a kind of teletext signal display device that can watch teletext picture and key frame simultaneously.
Teletext signal display device of the present invention comprises with the lower part based on the display unit that television image and teletext picture are provided:
From the broadcast singal of input, extract the teletext processor of figure message TV signal;
Be used to separate the figure message TV signal separator of above-mentioned figure message TV signal and TV signal;
According to user's selection, make above-mentioned figure message TV signal and TV signal be presented at the image processor in the divided zones of different on the picture.
Above-mentioned figure message TV signal separator is used for isolating from TV signal the RGB analog signal and the synchronizing signal of displayed map teletext, by the path different with TV signal, it is outputed in the above-mentioned image processor.
The present invention can provide a kind of user of making to watch the teletext signal display device of teletext picture and key frame simultaneously.
Description of drawings
Fig. 1 is existing teletext signal display device structure chart.
Fig. 2 to Fig. 4 is existing teletext display frame schematic diagram.
Fig. 5 is a teletext signal display device structure chart of the present invention.
Fig. 6 to Fig. 8 is for using the teletext display frame schematic diagram of teletext signal display device of the present invention.
Accompanying drawing major part symbol description
10: analog/digital converter 11: Video Decoder
12: teletext processor 13: deinterlacer
14: image processor 20: analog/digital converter
21: Video Decoder 22: teletext processor
23: deinterlacer 24: image processor
Embodiment
Below teletext signal display device of the present invention is described in detail.
Fig. 5 is a teletext signal display device structure chart of the present invention.
As shown in Figure 5, teletext signal display device of the present invention comprises with lower member:
Be used for will input RGB analog signal and the synchronizing signal analog/digital converter 20 that converts digital signal to;
Be used for isolating brightness and color signal, and convert thereof into the Video Decoder 21 of digital signal from CVBS or TV vision signal;
Be used for isolating figure message TV signal, with its teletext processor 22 with rgb signal output from CVBS or TV vision signal;
Be used for interleaving signal is converted to the deinterlacer 23 of release of an interleave signal;
Have and meeting convergent-divergent signal of video signal under the condition of follower and exporting the image processor 24 of two kinds of semiotic functions (for example, picture-in-picture, picture out picture) simultaneously.
Be provided with the device that in two signals of input, to select one of them in the above-mentioned analog/digital converter 20.
The signal that is input in the above-mentioned analog/digital converter 20 is respectively the RGB analog signal of above-mentioned teletext processor 22 outputs and the synchronizing signal of Video Decoder 21 outputs.
In the above-mentioned teletext processor 22, imported CVBS or TV vision signal, perhaps imported signal similarly, above-mentioned teletext processor 22 output RGB analog signal and synchronizing signals by above-mentioned Video Decoder 21 outputs.
The signal of above-mentioned Video Decoder 21 outputs comprises digital signal, the synchronizing signal of separated luminance signal, color signal, and converts the release of an interleave signal in deinterlacer 23 to, sends image processor 24 again to.
At this moment, figure message TV signal (RGB analog signal and synchronizing signal) is input in the image processor 24 by analog/digital converter 20, and main screen signal is input in the image processor 24 by teletext processor 22 and deinterlacer 23.
24 pairs of above-mentioned image processors utilize the figure message TV signal and the main screen signal of each different paths input to carry out image processing, by carrying out, figure message TV signal and main screen signal are presented at the zones of different of picture respectively such as convergent-divergent, picture-in-picture (Picture InPicture), picture out picture (Picture Out Picture), side by side pictures processing such as (Picture By Picture).
Fig. 6 to Fig. 8 is for using the teletext display frame schematic diagram of teletext signal display device of the present invention.
To shown in Figure 8, in different zones, this just makes the user can watch teletext picture and key frame simultaneously with key frame and teletext picture segmentation in the present invention as Fig. 6.
Claims (2)
1, a kind of teletext signal display device, device is characterized in that, comprising:
From the broadcast singal of input, extract the teletext processor of figure message TV signal;
Be used to separate the figure message TV signal separator of above-mentioned figure message TV signal and TV signal;
According to user's selection, above-mentioned figure message TV signal and TV signal are presented at the image processor in the divided zone on the picture.
2, according to claim item 1 described teletext signal display device, it is characterized in that:
Above-mentioned figure message TV signal separator will be from TV signal the RGB analog signal and the synchronizing signal of isolated displayed map teletext, by the path different, be input in the above-mentioned image processor with TV signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410080995 CN1767625A (en) | 2004-10-26 | 2004-10-26 | Teletext signal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410080995 CN1767625A (en) | 2004-10-26 | 2004-10-26 | Teletext signal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1767625A true CN1767625A (en) | 2006-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410080995 Pending CN1767625A (en) | 2004-10-26 | 2004-10-26 | Teletext signal display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN1767625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851379A (en) * | 2017-01-16 | 2017-06-13 | 深圳创维－Rgb电子有限公司 | A kind of picture and text processing method, processing system and television set |
-
2004
- 2004-10-26 CN CN 200410080995 patent/CN1767625A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851379A (en) * | 2017-01-16 | 2017-06-13 | 深圳创维－Rgb电子有限公司 | A kind of picture and text processing method, processing system and television set |
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