CN1599448A - Video signal conversion method and device of adjustable heterogeneous format display device - Google Patents
Video signal conversion method and device of adjustable heterogeneous format display device Download PDFInfo
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- CN1599448A CN1599448A CN 200410077106 CN200410077106A CN1599448A CN 1599448 A CN1599448 A CN 1599448A CN 200410077106 CN200410077106 CN 200410077106 CN 200410077106 A CN200410077106 A CN 200410077106A CN 1599448 A CN1599448 A CN 1599448A
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Abstract
A video signal conversion method for an adjustable display device suitable for different forms includes: detecting the display forms of a source vides signal and a display device, if the forms are not the same, then converting to that of the display device. Besides, the video signal converting device includes a detection device and a process device, the detection device detects their display forms and the process device converts the source video signal to be output to a related display device.
Description
Technical field
The present invention relates to the method and the device of outputting video signal, particularly relate to a kind of video signal conversion method and device of device of adjustable heterogeneous format display.
Background technology
NTSC and PAL are the main television systems of global two macrospecies, and NTSC (NationalTelevision System Committee) is used for zones such as North America, Canada, Mexico, Japan, Taiwan; PAL (Phase Alternating Line) then is used for Europe, Hong Kong and the Middle East one band.
The NTSC system uses alternating expression (interlace) scan mode to constitute picture, and each scanning picture is made up of two picture frames that separate.Please refer to Fig. 1, Fig. 1 is the schematic diagram of interleaved type scanning.When Figure 100 is scanned, use 525 scan lines, and earlier form a picture frame behind capable 1,3,5,7, the 9... of scanning odd number, form another picture frame again after again even numbers row 2,4,6,8... being scanned, be combined into a picture by this two picture frame again, to represent the picture of this Figure 100.Because interleaved type scanning is for to combining after the figure interlacing, because of interline flicker effect, parallel phenomenon and vertical edge sawtooth phenomenon etc. often appear in the shown picture that goes out behind this interleaved type scanning.
Then repeat no more as for the PAL system.In order to make display frame that better image quality be arranged, also have so-called digital television system now in development, this digital television system constitutes picture for adopting gradual scan mode, please refer to Fig. 2.Fig. 2 is the schematic diagram of gradual scan mode, and the employed scan line of Figure 200 is lined by line scan, and just in regular turn row 1,2,3,4,5,6,7,8... is scanned, to form the picture of representing Figure 200.Therefore wherein, gradual scanning frequency is promoted to 31.5KHz by horizontal frequency 15.75KHz, and shown picture is not easy to glimmer after gradual scanning, and the stability of picture and meticulous sense all can significantly promote.The user is when viewing and admiring Digital Television, even watch eyes also to be not easy fatigue for a long time.
Therefore, digital television system should be the main flow of standard TV systems in the future, and at the transition period that transfers digital television system by the NTSC system to, if the user has TV that uses the interleaved type scanning TV signal and the TV that uses gradual scanning TV signal simultaneously, perhaps only have the two one of, the user will need a kind of method and device that adapts to display unit.
Summary of the invention
The present invention proposes a kind of video signal conversion method of adjusting a heterogeneous form display unit, its step comprises that detecting one comes the display format of source video signal and one first display unit, and if this comes source video signal to be different from the display format of this first display unit, changing this, to come source video signal be the display format of this first display unit, is re-used as the input of this first display unit.Wherein, this comes source video signal to one second display unit also can to comprise transmission, and wherein the display format of this second display unit is different from the display format of this first display unit.If this comes source video signal is a progressive scan formula vision signal, and the display format of this first display unit is an interleaved type scanning, come source video signal to select scan line in a line options mode this, to come source video signal be an interlacing formula vision signal to change this.If this comes source video signal is an interlacing formula vision signal, and the display format of this display unit is gradual scanning, and this interlacing formula vision signal is changed this in the mode of twice of same scan line scanning, and to come source video signal be a progressive scan formula vision signal.If to come source video signal be an interlacing formula vision signal for this, and the display format of this display unit is the progressive scan formula, and changing this with an interpolation method, to come source video signal be a progressive scan formula vision signal.
The present invention also proposes a kind of video-signal converting apparatus of device of adjustable heterogeneous format display, comprises a checkout gear, comes the display format of source video signal and one first display unit in order to detect one; And a processing unit, come source video signal in order to change this, to export this first display unit to.This device also can comprise a first receiving device, at least onely come source video signal for this checkout gear and this processing unit detects and conversion process in order to receive, wherein this first receiving device also comprises: a picture frame buffer, this comes source video signal in order to buffer memory, detects this for this checkout gear and comes source video signal; And a multiplexer, this that receives this picture frame buffer comes source video signal, exporting this processing unit and one second receiving system to, and according to this checkout gear to determine the output of this multiplexer.
Above-mentioned video-signal converting apparatus, wherein this processing unit also comprises: a line options device, in order to this comes source video signal to select scan line certainly, to constitute an interlacing formula vision signal; And a buffer, in order to buffer memory with transmit this interlacing formula vision signal.
Above-mentioned video-signal converting apparatus is built and is placed an audio-visual control and a process chip.
Above-mentioned video-signal converting apparatus, wherein this audio-visual control and process chip are built and are placed a digital audio-video player.
Description of drawings
Fig. 1 is the schematic diagram of interleaved type scanning.
Fig. 2 is the schematic diagram of gradual scan mode.
Fig. 3 is the video-signal converting apparatus schematic diagram of preferred embodiment of the present invention.
Fig. 4 delivers wrong scanning means schematic diagram for the progressive scan of preferred embodiment of the present invention.
The figure number explanation:
100,200: figure
310: progressive scan formula TV
320: interlacing formula TV
330: the device that can export multiple TV signal simultaneously
340: first receiving device
350: processing unit
360 second receiving systems
370: checkout gear
380: the picture frame buffer
385,397: multiplexer
390: progressive scan is delivered wrong scanning means
395: the progressive scan device is changeed in interlacing
410: the line options device
420: buffer
Embodiment
For enabling that feature of the present invention, purpose and function are had further cognitive and understanding, existing conjunction with figs. is described in detail as follows.
Please refer to Fig. 3, Fig. 3 is the video-signal converting apparatus schematic diagram of preferred embodiment of the present invention.In this preferred embodiment, only at future source video signal export display unit such as progressive scan formula TV 310, interlacing formula TV 320 to and described, but the present invention is not limited to the display unit of these two kinds of forms.
In Fig. 3, the video-signal converting apparatus 330 of this device of adjustable heterogeneous format display comprises processing unit 350 and checkout gear 370.Wherein, checkout gear 370 is in order to detect the display format of source video signal and display unit, wherein coming source video signal can be from the vision signal of installing 330 outside inputs, also can be vision signal, and processing unit 350 be in order to handle source video signal according to the testing result of checkout gear 370 from a picture frame buffer 380 outputs.One carry at this, the vision signal of processing unit 350 inputs can also be to select the source video signal that comes exported by multiplexer 385.For instance, if come source video signal is a progressive scan formula vision signal, and display unit comprises a progressive scan formula TV 310, and one during interlacing formula TV 320, then this processing unit 350 can come this source video signal directly to provide progressive scan formula TV 310 to show on the one hand, it is an interlacing formula display format that convertible on the other hand this comes source video signal, shows for interlacing formula TV 320; If come source video signal is an interlacing formula vision signal, then this processing unit 350 can come this source video signal directly to provide interlacing formula TV 320 to show on the one hand, it is a progressive scan formula display format that convertible on the other hand this comes source video signal, shows for progressive scan formula TV 310.In addition, this device also can comprise a first receiving device 340, can be made up of picture frame buffer 380, multiplexer 385; Processing unit 350 can be delivered wrong scanning means 390 by progressive scan, interlacing is changeed progressive scan device 395 and formed.Wherein, this comes source video signal to picture frame buffer 380 in order to buffer memory, detects this for checkout gear 370 and comes source video signal; Multiplexer 385 is in order to receiving the source video signal that comes of picture frame buffer 380, exporting processing unit to or to be sent to one second receiving system 360, and according to the output of checkout gear 370 with decision multiplexer 397; Progressive scan device 395 is changeed in interlacing can scan twice mode by same scan line, converts interlacing formula vision signal to progressive scan formula vision signal, or constitutes gradual scanning TV signal in interpolation method increase scan line mode.Please consult Fig. 4 simultaneously, Fig. 4 delivers wrong scanning means schematic diagram for the progressive scan of preferred embodiment of the present invention, wherein progressive scan is delivered wrong scanning means 390 and can be comprised a line options device 410 and buffer 420, progressive scan formula vision signal is selected the scan line of the capable or even numbers row of odd number, to form an interlacing formula vision signal, just to progressive scan formula vision signal frequency elimination to export an interleaved type scanning TV signal, use for interlacing formula TV 320, and this progressive scan formula vision signal also may be output to gradual scanning TV 310.Thus, audio-visual equipment exhibition sale place or video wall can be reached multiple displaying purpose.
Comprehensively above-mentioned, the video signal conversion method of device of adjustable heterogeneous format display of the present invention and device, be by detecting source video signal, and come the display format of source video signal and display unit whether to mate according to this, carry out the processing and the output in different paths, so the puzzlement of the present invention can solve television system smoothly and replace the time.
But the above only is preferred embodiment of the present invention, can not be in order to limit the scope of the invention.Be that all equalizations of doing according to claim of the present invention change and modify, it does not break away from the spirit and scope of the present invention, all should be considered as further enforcement situation of the present invention and belongs to protection scope of the present invention.
Claims (10)
1. the video signal conversion method of a device of adjustable heterogeneous format display comprises:
Detect one and come the display format of source video signal and one first display unit; And
If this comes source video signal to be different from the display format of this first display unit, changing this, to come source video signal be the display format of this first display unit, with the input as this first display unit.
2. video signal conversion method as claimed in claim 1 also comprises:
Transmit this and come source video signal to one second display unit, wherein the display format of this second display unit is different from the display format of this first display unit.
3. video signal conversion method as claimed in claim 1 also comprises:
If this comes source video signal is a progressive scan formula vision signal, and the display format of this first display unit is an interleaved type scanning, come source video signal to select scan line in a line options mode this, to come source video signal be an interlacing formula vision signal to change this.
4. video signal conversion method as claimed in claim 1 also comprises:
If this comes source video signal is an interlacing formula vision signal, and the display format of this display unit is gradual scanning, and this interlacing formula vision signal is changed this in the mode of twice of same scan line scanning, and to come source video signal be a progressive scan formula vision signal.
5. video signal conversion method as claimed in claim 1 also comprises:
If to come source video signal be an interlacing formula vision signal for this, and the display format of this display unit is the progressive scan formula, and changing this with an interpolation method, to come source video signal be a progressive scan formula vision signal.
6. the video-signal converting apparatus of a device of adjustable heterogeneous format display comprises:
One checkout gear comes the display format of source video signal and one first display unit in order to detect one; And
One processing unit comes source video signal in order to change this, to export this first display unit to.
7. video-signal converting apparatus as claimed in claim 6 also comprises:
One first receiving device comes source video signal in order to receive this, and wherein this first receiving device also comprises:
One picture frame buffer, this comes source video signal in order to buffer memory, detects this for this checkout gear and comes source video signal; And
One multiplexer, this that receives this picture frame buffer comes source video signal, exporting this processing unit and one second receiving system to, and according to this checkout gear to determine the output of this multiplexer.
8. video-signal converting apparatus as claimed in claim 6, wherein this processing unit also comprises:
One line options device is in order to this comes source video signal to select scan line certainly, to constitute an interlacing formula vision signal; And
One buffer is in order to buffer memory and this interlacing formula vision signal of transmission.
9. video-signal converting apparatus as claimed in claim 6 is built and is placed an audio-visual control and a process chip.
10. video-signal converting apparatus as claimed in claim 9, wherein this audio-visual control and process chip are built and are placed a digital audio-video player.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410077106 CN1599448A (en) | 2004-09-10 | 2004-09-10 | Video signal conversion method and device of adjustable heterogeneous format display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410077106 CN1599448A (en) | 2004-09-10 | 2004-09-10 | Video signal conversion method and device of adjustable heterogeneous format display device |
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| CN1599448A true CN1599448A (en) | 2005-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881306A (en) * | 2012-09-06 | 2013-01-16 | 安科智慧城市技术（中国）有限公司 | Method and device for transcoding video files |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881306A (en) * | 2012-09-06 | 2013-01-16 | 安科智慧城市技术（中国）有限公司 | Method and device for transcoding video files |
| CN102881306B (en) * | 2012-09-06 | 2015-06-10 | 杭州天视智能系统有限公司 | Method and device for transcoding video files |
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