CN103220487A - Universal converter capable of converting high definition into standard definition - Google Patents
Universal converter capable of converting high definition into standard definition Download PDFInfo
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- CN103220487A CN103220487A CN2012100195763A CN201210019576A CN103220487A CN 103220487 A CN103220487 A CN 103220487A CN 2012100195763 A CN2012100195763 A CN 2012100195763A CN 201210019576 A CN201210019576 A CN 201210019576A CN 103220487 A CN103220487 A CN 103220487A
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Abstract
The invention provides a universal converter capable of converting high definition into standard definition. The universal converter capable of converting the high definition into the standard definition comprises a high-definition multimedia interface (HDMI) video input device, an image processing device, a composite video broadcast signal (CVBS) output device, a video graphics array (VGA)/YPBPR output device, a power management device, an audio output device and a central control device, wherein the HDMI video input device is connected with the image processing device through a cable, the CVBS output device is connected with the image processing device through a cable, the VGA/YPBPR output device is connected with the image processing device through a cable, the audio output device is connected with the image processing device through a cable, and the central control device is connected with the HDMI video input device through a cable, is connected image processing device through a cable and is connected with the audio output device through a cable. The universal converter can meet the requirement of a user that the high definition is converted into the standard definition on site.
Description
Technical field
The present invention relates to the switch technology field of video, particularly relate to the omnipotent transducer that a kind of high definition is changeed SD.
Background technology
Video converter is mainly used in the format conversion between the different video interface and the conversion of resolution of same video interface, be accompanied by the continuous development of video, video interface type on the market is more and more, and simulation is arranged, have the numeral, SD arranged, high definition is also arranged, and in the place of most Video Applications, analog digital, therefore the video of SD high definition is also deposited, and must change video, thereby make the whole video system can smooth operation.Video converter is generally by the video reception decoded portion, the video coding part, and central control section, power unit is formed.
Present existing video converter has following defective, and is specific as follows described:
1, present existing video converter is the video converter that SD changes high definition, such as HDMI signal converter from the CVBS signal of SD to high definition, HDMI signal converter from the YPBPR of SD to high definition, HDMI signal converter from the VGA signal of SD to high definition, these transducers can only realize the SD conversion of signals is become the function of high-definition signal, and in real Video Applications place, often need the high-definition video signal of input is converted into the SD vision signal, thereby compatible original analog display device, as VGA projector, perhaps CVBS video recorded broadcast machine etc.
2, existing transducer can only become high-definition signal with the SD conversion of signals, its shortcoming can not be converted into high-definition signal the SD signal, and in the Video Applications place, in many application, need to convert high-definition signal to analog signal, thereby the display device of more compatible simulations, therefore existing transducer can not satisfy this application places, and be in its stage of depositing of various video signal at present, this conversion demand from the high definition to the SD is very big, especially in the upgrading of video system.
What in a word, present video converter can't satisfy the user changes the field demand of SD from high definition.
Thereby, need the urgent technical problem that solves of those skilled in the art to be exactly at present: how to find a kind of novel video converter, can satisfy user's field demand from high definition commentaries on classics SD.
Summary of the invention
A technical problem to be solved by this invention provides the omnipotent transducer that a kind of high definition is changeed SD, and this transducer can satisfy user's the field demand from high definition commentaries on classics SD.
In order to address the above problem, the invention discloses a kind of high definition changes the omnipotent transducer of SD, comprises HDMI video input device, image processing apparatus, CVBS output device, VGA/YPBPR output device, electric power controller, audio output device and central control unit; Described HDMI video input device links to each other with described image processing apparatus by cable; Described CVBS output device links to each other with described image processing apparatus by cable; Described VGA/YPBPR output device links to each other with described image processing apparatus by cable; Described audio output device links to each other with described image processing apparatus by cable; Described central control unit links to each other with described HDMI video input device by cable; Described central control unit links to each other with described image processing apparatus by cable; Described central control unit links to each other with described audio output device by cable; Described electric power controller links to each other with described HDMI video input device by cable; Described electric power controller links to each other with described image processing apparatus by cable; Described electric power controller links to each other with described CVBS output device by cable; Described electric power controller links to each other with described VGA/YPBPR output device by cable; Described electric power controller links to each other with described audio output device by cable; Described electric power controller links to each other with described central control unit by cable.
Preferably, described HDMI video input device comprises the SII9233 chip unit, and described SII9233 chip unit is supported HDMI1.4 form and HDCP form.
Preferably, described image processing apparatus comprises the fpga chip unit.
Preferably, can encode the HDMI signal of input in described fpga chip unit, and export with the video signal format of TTL signal and HDMI.
Preferably, described image processing apparatus comprises graphics processing unit.
Preferably, described graphics processing unit comprises:
Image color is regulated subelement, is used to carry out the operation that the color of image is regulated;
The image zoom subelement is used to carry out the operation that image is amplified or image is dwindled;
Image gyrator unit is used to carry out the operation that image is rotated.
Preferably, described CVBS output device comprises ADV73 family chip unit.
Preferably, described ADV73 family chip unit is used for the TTL signal is carried out data buffering, the TTL signal after obtaining to cushion.
Preferably, described VGA/YPBPR output device comprises the EP9853 chip unit.
Preferably, described EP9853 chip unit is used for the TTL conversion of signals is become the VGA/YPBPR signal, and with the VGA/YPBPR signal output that obtains.
Compared with prior art, the present invention has the following advantages:
1, high definition of the present invention is changeed the omnipotent transducer support HDMI high-definition signal input of SD, CVBS, YPBPR, VGA SD signal are exported simultaneously, also be with one road HDMI high-definition signal ring to go out simultaneously, the output of every kind of signal reaches the signal standards of various signals fully, also supports the most of resolution in the various signal standardss in the selection of resolution.
2, the omnipotent transducer of high definition commentaries on classics SD of the present invention can be called omnipotent transducer, reason is to export when transducer of the present invention is supported CVBS, YPBPR, VGA and HDMI, the user can be according to the needs at scene, oneself select to use in CVBS, YPBPR, VGA and the HDMI signal a kind or several, save video distributor, save other video switchers.
3, the omnipotent transducer of high definition commentaries on classics SD of the present invention can convert high-definition signal to SD signal, compatible analog machine.
4, the omnipotent transducer of high definition commentaries on classics SD of the present invention is exported HDMI, CVBS, VGA and YPBPR simultaneously, saves distributor and other transducers.
5, high definition of the present invention is changeed the omnipotent transducer support image zoom of SD, reaches perfect display effect.
In a word, the invention provides the omnipotent transducer that a kind of high definition is changeed SD, this transducer can satisfy user's the field demand from high definition commentaries on classics SD.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in below embodiment being described, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation that a kind of high definition of the present invention is changeed the omnipotent transducer embodiment 1 of SD;
Wherein, 1, HDMI video input device 2, image processing apparatus; 3, CVBS output device; 4, VGA/YPBPR output device; 5, electric power controller; 6, audio output device; 7, central control unit; 8, cable;
Fig. 2 is the structural representation that a kind of high definition of the present invention is changeed the omnipotent transducer embodiment 2 of SD;
Fig. 3 is the schematic diagram of the mode of operation of the omnipotent transducer that high definition is changeed SD among the present invention.
Embodiment
The omnipotent transducer that the embodiment of the invention provides a kind of high definition to change SD, this transducer can satisfy user's the field demand from high definition commentaries on classics SD.
For make goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, but not whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
One of core concept of the present invention has provided the omnipotent transducer that a kind of high definition is changeed SD, comprises HDMI video input device, image processing apparatus, CVBS output device, VGA/YPBPR output device, electric power controller, audio output device and central control unit; Described HDMI video input device links to each other with described image processing apparatus by cable; Described CVBS output device links to each other with described image processing apparatus by cable; Described VGA/YPBPR output device links to each other with described image processing apparatus by cable; Described audio output device links to each other with described image processing apparatus by cable; Described central control unit links to each other with described HDMI video input device by cable; Described central control unit links to each other with described image processing apparatus by cable; Described central control unit links to each other with described audio output device by cable; Described electric power controller links to each other with described HDMI video input device by cable; Described electric power controller links to each other with described image processing apparatus by cable; Described electric power controller links to each other with described CVBS output device by cable; Described electric power controller links to each other with described VGA/YPBPR output device by cable; Described electric power controller links to each other with described audio output device by cable; Described electric power controller links to each other with described central control unit by cable; This transducer can satisfy user's the field demand from high definition commentaries on classics SD.
In order to make those of ordinary skill in the art understand the present invention better, be described in detail as follows technical term below, specific as follows described:
SD: SD refers to the video of single-definition, and general interface has CVBS (composite video), YPBPR (component vide), and definition refers generally to 480i, 576i, VGA (video graphics array) interface of simulation is also contained in the definition of SD simultaneously.
High definition: high definition refers to the video of high definition, and definition can reach 1080p resolution and 60hz refresh rate, and the HD video interface has HDMI (HDMI (High Definition Multimedia Interface)), DVI (digital visual interface) and SDI (digital serial interface) etc.
Transducer: transducer refers to the equipment of changing between the video interface, comprises the format conversion between the different video interface, also comprises the conversion of resolution of same video interface.
HDMI: HDMI (High Definition Multimedia Interface).
YPBPR: the color difference components signal, with brightness and color-separated.
VGA: video graphics array is a kind of analog video signal interface, is mainly used in the connection between computer and the display.
CVBS: composite video signal is a kind of analog video signal interface.
HDCP: high-bandwidth content protection agreement is mainly used in HDMI (High Definition Multimedia Interface).
FPGA: field programmable gate array.
With reference to Fig. 1, show the structural representation that a kind of high definition of the present invention is changeed the omnipotent transducer embodiment 1 of SD, specifically can comprise:
Wherein, 1, HDMI video input device 2, image processing apparatus; 3, CVBS output device; 4, VGA/YPBPR output device; 5, electric power controller; 6, audio output device; 7, central control unit; 8, cable.
A kind of high definition is changeed the omnipotent transducer of SD, comprises HDMI video input device 1, image processing apparatus 2, CVBS output device 3, VGA/YPBPR output device 4, electric power controller 5, audio output device 6 and central control unit 7; Described HDMI video input device 1 links to each other with described image processing apparatus 2 by cable 8; Described CVBS output device 3 links to each other with described image processing apparatus 2 by cable 8; Described VGA/YPBPR output device 3 links to each other with described image processing apparatus 2 by cable 8; Described audio output device 6 links to each other with described image processing apparatus 2 by cable 8; Described central control unit 7 links to each other with described HDMI video input device 1 by cable 8; Described central control unit 7 links to each other with described image processing apparatus 2 by cable 8; Described central control unit 7 links to each other with described audio output device 6 by cable 8; Described electric power controller 5 links to each other with described HDMI video input device 1 by cable 8; Described electric power controller 5 links to each other with described image processing apparatus 2 by cable 8; Described electric power controller 5 links to each other with described CVBS output device 3 by cable 8; Described electric power controller 5 links to each other with described VGA/YPBPR output device 4 by cable 8; Described electric power controller 5 links to each other with described audio output device 6 by cable 8; Described electric power controller 5 links to each other with described central control unit 7 by cable 8.Described HDMI video input device 1 comprises the SII9233 chip unit, and described SII9233 chip unit is supported HDMI1.4 form and HDCP form.Described image processing apparatus 2 comprises the fpga chip unit.Can encode the HDMI signal of input in described fpga chip unit, and export with the video signal format of TTL signal and HDMI.Described image processing apparatus 2 comprises graphics processing unit.Described graphics processing unit comprises: image color is regulated subelement, is used to carry out the operation that the color of image is regulated; The image zoom subelement is used to carry out the operation that image is amplified or image is dwindled; Image gyrator unit is used to carry out the operation that image is rotated.Described CVBS output device 3 comprises ADV73 family chip unit.Described ADV73 family chip unit is used for the TTL signal is carried out data buffering, the TTL signal after obtaining to cushion.Described VGA/YPBPR output device 4 comprises the EP9853 chip unit.Described EP9853 chip unit is used for the TTL conversion of signals is become the VGA/YPBPR signal, and with the VGA/YPBPR signal output that obtains.
Below by specific embodiment and accompanying drawing, technical scheme of the present invention is further detailed.
With reference to Fig. 2, show the structural representation that a kind of high definition of the present invention is changeed the omnipotent transducer embodiment 2 of SD, specifically can comprise:
In Fig. 2, video source is connected to high definition of the present invention to the omnipotent transducer of SD, and generally, video source is a DVD player, HD DVD player, blue-ray DVD player, CATV set-top-box, satellite television set-top box or computer.The output port of video source and the input port of transmitting terminal of the present invention are equipped with suitable cable.Generally, suitable cable is a HDMI cable.
High definition of the present invention is changeed the omnipotent conversion of SD can be converted into the HDMI high-definition video signal simulation SD vision signal and audio signal.
The input electricity mouth of output port of the present invention and display is connected by suitable cable, and generally, cable is a HDMI cable, VGA cable, VGA commentaries on classics YPBPR cable, CVBS cable.
Display is the content for display application, as video.Generally, display is a high definition TV, comprises LCD TV, plasm TV, and the DLP TV, perhaps computer monitor comprises LCD and other flat-panel monitors, also comprises the projecting apparatus and the projector of high definition simultaneously.
With reference to Fig. 3, show the schematic diagram of the mode of operation of the omnipotent transducer of high definition commentaries on classics SD among the present invention.
From Fig. 3, the mode of operation of transducer among the present invention as can be seen, specific as follows described:
1) the HDMI video input device 1 of transducer adopts the SII9233 chip of Silicon Image company, this chip functions is powerful, support the 10.2G bandwidth, support HDMI1.4, support HDCP, image processing apparatus 2 adopts certain well-known fpga chip, the HDMI signal recompile of input can be become the TTL signal and the output of HDMI signal of standard, nearly 26 kinds of resolution outputs are supported in HDMI output, support image color to regulate simultaneously, image zoom, the function of image rotation.
2) CVBS signal output apparatus 3 adopts the ADV73 family chip of ADI company, and this chip can be done buffered to the TTL signal of input, keeps the consistency of input and output in cataloged procedure.
3) VGA/YPBPR output device 4 adopts the EP9853 chip of EXPLORER companies, and what can can't harm equally finishes the conversion of TTL signal to the VGA/YPBPR signal; Change in the transfer process of SD in high definition, can realize the convergent-divergent of image, thereby solve the black surround of display device or the problem of overflowing.
In sum, the omnipotent transducer of a kind of high definition commentaries on classics SD of the present invention can be realized the video conversion of high definition commentaries on classics SD; HDMI, CVBS, four kinds of signals of VGA, YPBPR are exported simultaneously; Support image zoom.
In a word, the invention provides the omnipotent transducer that a kind of high definition is changeed SD, this transducer can satisfy user's the field demand from high definition commentaries on classics SD.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For system embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than a kind of high definition provided by the present invention is changeed SD omnipotent transducer be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. the omnipotent transducer of a high definition commentaries on classics SD is characterized in that, comprises HDMI video input device, image processing apparatus, CVBS output device, VGA/YPBPR output device, electric power controller, audio output device and central control unit; Described HDMI video input device links to each other with described image processing apparatus by cable; Described CVBS output device links to each other with described image processing apparatus by cable; Described VGA/YPBPR output device links to each other with described image processing apparatus by cable; Described audio output device links to each other with described image processing apparatus by cable; Described central control unit links to each other with described HDMI video input device by cable; Described central control unit links to each other with described image processing apparatus by cable; Described central control unit links to each other with described audio output device by cable; Described electric power controller links to each other with described HDMI video input device by cable; Described electric power controller links to each other with described image processing apparatus by cable; Described electric power controller links to each other with described CVBS output device by cable; Described electric power controller links to each other with described VGA/YPBPR output device by cable; Described electric power controller links to each other with described audio output device by cable; Described electric power controller links to each other with described central control unit by cable.
2. high definition according to claim 1 is changeed the omnipotent transducer of SD, it is characterized in that:
Described HDMI video input device comprises the SII9233 chip unit, and described SII9233 chip unit is supported HDMI1.4 form and HDCP form.
3. high definition according to claim 2 is changeed the omnipotent transducer of SD, it is characterized in that:
Described image processing apparatus comprises the fpga chip unit.
4. high definition according to claim 3 is changeed the omnipotent transducer of SD, it is characterized in that:
Can encode the HDMI signal of input in described fpga chip unit, and export with the video signal format of TTL signal and HDMI.
5. high definition according to claim 3 is changeed the omnipotent transducer of SD, it is characterized in that:
Described image processing apparatus comprises graphics processing unit.
6. high definition according to claim 5 is changeed the omnipotent transducer of SD, it is characterized in that described graphics processing unit comprises:
Image color is regulated subelement, is used to carry out the operation that the color of image is regulated;
The image zoom subelement is used to carry out the operation that image is amplified or image is dwindled;
Image gyrator unit is used to carry out the operation that image is rotated.
7. high definition according to claim 1 is changeed the omnipotent transducer of SD, it is characterized in that:
Described CVBS output device comprises ADV73 family chip unit.
8. high definition according to claim 7 is changeed the omnipotent transducer of SD, it is characterized in that:
Described ADV73 family chip unit is used for the TTL signal is carried out data buffering, the TTL signal after obtaining to cushion.
9. high definition according to claim 1 is changeed the omnipotent transducer of SD, it is characterized in that:
Described VGA/YPBPR output device comprises the EP9853 chip unit.
10. high definition according to claim 9 is changeed the omnipotent transducer of SD, it is characterized in that:
Described EP9853 chip unit is used for the TTL conversion of signals is become the VGA/YPBPR signal, and with the VGA/YPBPR signal output that obtains.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100195763A CN103220487A (en) | 2012-01-20 | 2012-01-20 | Universal converter capable of converting high definition into standard definition |
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| CN2012100195763A CN103220487A (en) | 2012-01-20 | 2012-01-20 | Universal converter capable of converting high definition into standard definition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103974039A (en) * | 2014-04-29 | 2014-08-06 | 中科融通物联科技无锡有限公司 | Intelligent infrared thermal imaging and high-definition visible light dual-waveband video monitoring system |
| CN107707829A (en) * | 2017-09-28 | 2018-02-16 | 成都傅立叶电子科技有限公司 | A kind of method that multiplex roles intelligence SDI video switching boxs are realized based on FPGA |
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| CN201878274U (en) * | 2010-11-24 | 2011-06-22 | 北京格非科技发展有限公司 | Multi-format converter |
| CN202424900U (en) * | 2012-01-20 | 2012-09-05 | 北京凯新创达科技发展有限公司 | Universal high-definition-to-standard-definition converter |
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| CN201403161Y (en) * | 2009-04-20 | 2010-02-10 | 北京中视环亚卫星传输有限公司 | High/standard definition digital transmission system |
| KR20110026808A (en) * | 2009-09-08 | 2011-03-16 | 엘지전자 주식회사 | Apparatus for displaying image and method for operating the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103974039A (en) * | 2014-04-29 | 2014-08-06 | 中科融通物联科技无锡有限公司 | Intelligent infrared thermal imaging and high-definition visible light dual-waveband video monitoring system |
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| CN107707829A (en) * | 2017-09-28 | 2018-02-16 | 成都傅立叶电子科技有限公司 | A kind of method that multiplex roles intelligence SDI video switching boxs are realized based on FPGA |
| CN107707829B (en) * | 2017-09-28 | 2020-04-21 | 成都傅立叶电子科技有限公司 | Multi-interface intelligent SDI video conversion box realized based on FPGA |
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