CN2876893Y - High grade digital display interface converting card device for computer - Google Patents
High grade digital display interface converting card device for computer Download PDFInfo
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- CN2876893Y CN2876893Y CN 200620039739 CN200620039739U CN2876893Y CN 2876893 Y CN2876893 Y CN 2876893Y CN 200620039739 CN200620039739 CN 200620039739 CN 200620039739 U CN200620039739 U CN 200620039739U CN 2876893 Y CN2876893 Y CN 2876893Y
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Abstract
The utility model relates to a high grade digital display interface converting card device for computer, which comprises a signal input interface module, a signal converting module and a signal output interface module mounted on a circuit board; wherein, the signal input interface module is connected with a digital video interface; the signal converting module includes a digital video converting unit, an analog video converting unit and a memory unit; the signal output interface module consists of a digital video signal output interface unit and an analog video signal output interface unit; the digital video interface respectively transmits serial digital video output signal B and signal C to the digital video converting unit and the analog video converting unit. The utility model is characterized by convenient use, support of different display devices, strong compatibility, high function integrity, environment protection, low electricity consumption, multi-function, simple structure, low cost, steady and reliable working performance, thereby having extensive application.
Description
Technical field
The utility model relates to the computer hardware field, and particularly computer video display interface hardware art specifically is meant the advanced digital display interface conversion prefabricated card-inserting device on a kind of computing machine.
Background technology
In the modern life, the signal of various video formats emerges in an endless stream, and peripheral terminal equipment is also along with vision signal that constantly can compatible various standards, and on general user's PC, the capital has a socket to be connected with north bridge by X16 PCI Express bus, but there is not the plug-in card of suitable expansion PCI video special purpose interface (PCI Express) to use, can not utilize the digital signal advantage of computing machine itself to provide the power that numeral shows and image is selected, bring certain inconvenience for the widespread use of terminal device for people for the user.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provide a kind of and can support that various video shows standard, compatibility is stronger, easy to use, function is concentrated, simple in structure, environmental protection, stable and reliable working performance, applicable surface comparatively widely the advanced digital display interface on the computing machine change prefabricated card-inserting device.
In order to realize above-mentioned purpose, the advanced digital display interface conversion prefabricated card-inserting device on the computing machine of the present utility model has following formation:
Advanced digital display interface conversion prefabricated card-inserting device on this computing machine, comprise the digital visual interface that is connected with north bridge on the computer motherboard, its principal feature is, described prefabricated card-inserting device comprises the signal input interface module of carrying on the circuit board, signal conversion module and signal output interface module, described signal input interface module is connected with described digital visual interface, described signal conversion module comprises the digital video converting unit, analog video converting unit and memory cell, described memory cell all is connected with the analog video converting unit with described digital video converting unit, described signal output interface module comprises digital video signal output interface unit and analog video signal output interface unit, described digital visual interface is exported the B signal by the signal input interface module with serial digital video and is delivered to described digital video converting unit, and this digital video converting unit is connected with digital video signal output interface unit, described digital visual interface is exported the C signal by the signal input interface module with serial digital video and is delivered to described analog video converting unit, and this analog video converting unit is connected with analog video signal output interface unit.
The digital visual interface of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine is a PCI digital video special purpose interface.
The signal input interface module of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine is the PCI finger-type interface device that is inserted on the PCI digital video special purpose interface.
The digital video converting unit of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine is the CH7313A display control chip.
The digital video signal output interface unit of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine is digital picture interface DVI.
The analog video converting unit of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine is the CH7021A display control chip.
The analog video signal output interface unit of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine comprises video image permutation interface VGA, two component vide interface S-Video, analog video and audio frequency compound interface SCART, composite video broadcast singal interface CVBS and component vide interface YPrPb.
The memory cell of the advanced digital display interface conversion prefabricated card-inserting device on this computing machine is electricallyerasable ROM (EEROM) EEPROM.
Be installed on HDMI HDMI and sound decoder chip on the advanced digital display interface conversion prefabricated card-inserting device on this computing machine, described HDMI HDMI is connected with the digital video converting unit with described voice decoder chip respectively.
Be installed on USB interface on advanced digital display interface on this computing machine conversion prefabricated card-inserting device, described USB interface is connected with digital visual interface on the described mainboard by described signal input interface module.
Adopted the advanced digital display interface conversion prefabricated card-inserting device on the computing machine of this utility model, owing to itself have the interface device compatible mutually with PCI vision signal special purpose interface, use thereby can directly be plugged in the PCI video slot on the computer motherboard, utilize the digital video converting unit and the analog video converting unit that are had to convert vision signal to multiple standard as required simultaneously, not only easy to use, being inserted in PCI Express interface (this interface can only be GMCH ' s X16 port) upward gets final product, support multiple display device simultaneously, for example: LVDS, DVI, analog RGB out and TV out; And can operate with tradition and mode standard, and can support X1 PCI Express compatible equipment by using SDVOB PORT or SDVOC PORT; Moreover, the prefabricated card-inserting device of this utility model can also merge to the function of two or more PCI Express card in the single card, not only environmental protection, and little power consumption, and also powerful, simple in structure, cost is low; Stable and reliable working performance simultaneously, applicable surface is comparatively extensive, for the widespread use of various video frequency terminal apparatus brings great convenience.
Description of drawings
Fig. 1 is the hardware module figure of the advanced digital display interface conversion prefabricated card-inserting device on the computing machine of the present utility model.
Fig. 2 is the principle of work synoptic diagram of the advanced digital display interface conversion prefabricated card-inserting device on the computing machine of the present utility model.
Embodiment
In order more to be expressly understood technology contents of the present utility model, describe in detail especially exemplified by following examples.
Enumerate involved term earlier:
| Project | Describe |
| ADD2+ | Advanced Digital Display 2 Plus advanced digital display interfaces conversion plug-in card |
| SDVO | The output of Serial Digital Video Output serial digital video |
| VGA | Video Graphic Array video image permutation |
| DVI | Digital Video Interface digital image interface |
| PCI-E | Peripheral Command Interface-Express |
| CLK | The Clock clock |
| CVBS | Composite Video Broadcast Signal composite video broadcast singal |
| S-Video | Two component vides |
| HDMI | High Definition Multimedia Interface HDMI |
See also illustrated in figures 1 and 2, advanced digital display interface conversion prefabricated card-inserting device on this computing machine, comprise the digital visual interface 1 that is connected with north bridge on the computer motherboard, this digital visual interface 1 is a PCI digital video special purpose interface 1, wherein, described prefabricated card-inserting device comprises the signal input interface module of carrying on the circuit board 2, signal conversion module and signal output interface module, described signal input interface module is connected with described digital visual interface 1, in the present embodiment, this signal input interface module is the PCI finger-type interface device that is inserted on the PCI digital video special purpose interface 1; Described signal conversion module comprises digital video converting unit 21, analog video converting unit 22 and memory cell 23, this digital video converting unit 21 adopts the CH7313A display control chip, this analog video converting unit 22 adopts the CH7021A display control chip, and this memory cell 23 adopts electricallyerasable ROM (EEROM) EEPROM; Described memory cell 23 all is connected with analog video converting unit 22 with described digital video converting unit 21, described signal output interface module comprises digital video signal output interface unit and analog video signal output interface unit, this digital video signal output interface unit is digital picture interface DVI31, described digital visual interface 1 is exported B signal (SDVO-B signal) by the signal input interface module with serial digital video and is delivered to described digital video converting unit 21, and this digital video converting unit 21 is connected with digital video signal output interface unit, this analog video signal output interface unit comprises video image permutation interface VGA 32, two component vide interface S-Video 33, analog video and audio frequency compound interface SCART 34, composite video broadcast singal interface CVBS 35 and component vide interface YPrPb 36, described digital visual interface 1 is exported C signal (SDVO-B signal) by the signal input interface module with serial digital video and is delivered to described analog video converting unit 22, and this analog video converting unit 22 is connected with analog video signal output interface unit.
Simultaneously, can be installed on HDMI HDMI and sound decoder chip on the advanced digital display interface conversion prefabricated card-inserting device on this computing machine, described HDMI HDMI is connected with digital video converting unit 21 with described voice decoder chip respectively; And can also be installed on USB interface on this prefabricated card-inserting device, described USB interface is connected with digital visual interface 1 on the described computer motherboard by described signal input interface module.
In the middle of reality is used, the PCI-Express* Graphics/SDVO Port that the importation provides for north bridge for Intel, and the chip that digital video converting unit 21 and analog video converting unit 22 adopt is respectively CH7313A, CH7021A, and storer 23 adopts EEPROM AT24C16AN; Chip supplier can have: Silicon, Chrontel, Conexant.
For output just like lower interface:
(1) analog video interface: VAG 32, S-Video 33, CVBS 35, YPrPb COMPOSITE 36 and SCART34
(2) digital visual interface: DVI 31
On function; prefabricated card-inserting device of the present utility model is supported Intel SDVO PC interface specification; the analog video input port that the user uses this card can make PC pass through TV-Out transmits vision signal, and can watch the high resolving power video signal of copyright protection on PC display, LCD, projection device or HDTV.
The CH7021A that uses on the prefabricated card-inserting device of the present utility model can be converted to the digital picture output signal of PC the analog video input signal that standard, enhancing or high-definition television can receive.Have scaling/anti-flicker engine by CH7021A, can satisfy the conversion of any PC image resolution ratio (up to 1600 * 1200 pixel UXGA) to all SDTV and all HDTV resolution.Can drive YPrPb, RGB, synthetic video or S vision signal by CH7021A and input to outside TV.Be a HDTV scrambler of supporting SDVO, can carry out the filtering of proportional zoom and flicker free to 1080i HDTV signal, compatible NTSC, PAL and SECAM television broadcasting standard.
The included other display control chip CH7313A of prefabricated card-inserting device of the present utility model accepts digital image signal, and the coding back is by DVI interface transmission of digital.CH7313A supports the 1-2Gbit/s high speed video signal input of SDVO interface specification.The video signal output speed reaches 165Mpixel/s, and being fit to driving high resolution external display and refresh rate is VXGA (1600 * 1200 picture element) display of 60Hz.And CH7313 has integrated inner HDCP sign indicating number.
Moreover, prefabricated card-inserting device of the present utility model also has following extendible part:
(1) prefabricated card-inserting device of the present utility model can also import HDMI (HDMI), and HDMI is the interface that baseband signal is carried out digital transmission.
Compare with DVI, HDMI has many advantages.At first, HDMI can while transmission video signal and sound signal.Sound signal is compressed into audio samples bag (Audio Sample Packet), transmits by the blank spaces between each video transmission fragment.HDMI had both supported compressing audio signal, also supported not compressing audio signal, was fit to very much general audio formats such as delivery MPEG-2, Dolby Digital (AC-3) and DTS, and stereo and multichannel pcm audio.The latest edition 1.1 of HDMI specification is also to having made definition by the mode of HDMI transmission DVD sound signal.
Secondly, the HDMI connecting interface is compared the DVI connecting interface and is more suitable for consumption electronic product.Because DVI carries analog format and video format simultaneously, so the interface volume is relatively large.The same with many D class connectors, the DVI interface need could be fixed with screwdriver.HDMI interface volume is very little, connects by friction, and the consumer can be installed on DVD player, set-top box and the televisor easily.
HDMI also has many other advantages.For example, can by the HDMI interface with the information transmission of current audio and video format to demonstration equipment.Demonstration equipment can utilize this information to regulate video resolution, aspect ratio and audio decoder form automatically, thus the better fit input signal.
Here in order to have the HDMI function concurrently, need to add voice decoder chip (Audio Codec).
(2) import the video input function, TV is input to computer monitor by list or binary channels with video and shows.
(3) prefabricated card-inserting device of the present utility model can be introduced the USB function by the empty pin of PCIE, can make the user use USB at the display end, there is no need to have gone for USB interface behind at cabinet again.
Adopted the advanced digital display interface conversion prefabricated card-inserting device on the above-mentioned computing machine, owing to itself have the interface device compatible mutually with PCI vision signal special purpose interface 1, use thereby can directly be plugged in the PCI video slot on the computer motherboard, utilize the digital video converting unit 21 and the analog video converting unit 22 that are had to convert vision signal to multiple standard as required simultaneously, not only easy to use, being inserted in PCI Express interface (this interface can only be GMCH ' s X16 port) upward gets final product, support multiple display device simultaneously, for example: LVDS, DVI, analog RGB out and TV out; And can operate with tradition and mode standard, and can support X1 PCI Express compatible equipment by using SDVOB PORT or SDVOC PORT; Moreover, the prefabricated card-inserting device of this utility model can also merge to the function of two or more PCI Express card in the single card, not only environmental protection, and little power consumption, and also powerful, simple in structure, cost is low; Stable and reliable working performance simultaneously, applicable surface is comparatively extensive, for the widespread use of various video frequency terminal apparatus brings great convenience.
In this instructions, the utility model is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1, advanced digital display interface conversion prefabricated card-inserting device on a kind of computing machine, comprise the digital visual interface that is connected with north bridge on the computer motherboard, it is characterized in that, described prefabricated card-inserting device comprises the signal input interface module of carrying on the circuit board, signal conversion module and signal output interface module, described signal input interface module is connected with described digital visual interface, described signal conversion module comprises the digital video converting unit, analog video converting unit and memory cell, described memory cell all is connected with the analog video converting unit with described digital video converting unit, described signal output interface module comprises digital video signal output interface unit and analog video signal output interface unit, described digital visual interface is exported the B signal by the signal input interface module with serial digital video and is delivered to described digital video converting unit, and this digital video converting unit is connected with digital video signal output interface unit, described digital visual interface is exported the C signal by the signal input interface module with serial digital video and is delivered to described analog video converting unit, and this analog video converting unit is connected with analog video signal output interface unit.
2, the conversion of the advanced digital display interface on the computing machine according to claim 1 prefabricated card-inserting device is characterized in that described digital visual interface is a PCI digital video special purpose interface.
3, the conversion of the advanced digital display interface on the computing machine according to claim 2 prefabricated card-inserting device is characterized in that described signal input interface module is the PCI finger-type interface device that is inserted on the PCI digital video special purpose interface.
4, according to the conversion of the advanced digital display interface on each described computing machine in the claim 1 to 3 prefabricated card-inserting device, it is characterized in that described digital video converting unit is the CH7313A display control chip.
5, the conversion of the advanced digital display interface on the computing machine according to claim 4 prefabricated card-inserting device is characterized in that described digital video signal output interface unit is digital picture interface DVI.
6, according to the conversion of the advanced digital display interface on each described computing machine in the claim 1 to 3 prefabricated card-inserting device, it is characterized in that described analog video converting unit is the CH7021A display control chip.
7, the conversion of the advanced digital display interface on the computing machine according to claim 6 prefabricated card-inserting device, it is characterized in that described analog video signal output interface unit comprises video image permutation interface VGA, two component vide interface S-Video, analog video and audio frequency compound interface SCART, composite video broadcast singal interface CVBS and component vide interface YPrPb.
8, according to the conversion of the advanced digital display interface on each described computing machine in the claim 1 to 3 prefabricated card-inserting device, it is characterized in that described memory cell is electricallyerasable ROM (EEROM) EEPROM.
9, according to the conversion of the advanced digital display interface on each described computing machine in the claim 1 to 3 prefabricated card-inserting device, it is characterized in that, be installed on HDMI HDMI and sound decoder chip on the described prefabricated card-inserting device, described HDMI HDMI is connected with the digital video converting unit with described voice decoder chip respectively.
10, according to the conversion of the advanced digital display interface on each described computing machine in the claim 1 to 3 prefabricated card-inserting device, it is characterized in that, be installed on USB interface on the described prefabricated card-inserting device, described USB interface is connected with digital visual interface on the described mainboard by described signal input interface module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039739 CN2876893Y (en) | 2006-02-24 | 2006-02-24 | High grade digital display interface converting card device for computer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039739 CN2876893Y (en) | 2006-02-24 | 2006-02-24 | High grade digital display interface converting card device for computer |
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| CN2876893Y true CN2876893Y (en) | 2007-03-07 |
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| CN 200620039739 Expired - Fee Related CN2876893Y (en) | 2006-02-24 | 2006-02-24 | High grade digital display interface converting card device for computer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006443A (en) * | 2010-12-07 | 2011-04-06 | 深圳市巨潮科技有限公司 | Port switching and signal processing method and circuit |
| CN102177704A (en) * | 2008-08-27 | 2011-09-07 | 诺瓦数位电视科技股份有限公司 | Modular digital television decoder |
| CN101968684B (en) * | 2009-07-28 | 2015-12-16 | 宏正自动科技股份有限公司 | Multi-computer switch system |
-
2006
- 2006-02-24 CN CN 200620039739 patent/CN2876893Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177704A (en) * | 2008-08-27 | 2011-09-07 | 诺瓦数位电视科技股份有限公司 | Modular digital television decoder |
| US9307286B2 (en) | 2008-08-27 | 2016-04-05 | Volker Franke | Modular digital television decoder |
| CN101968684B (en) * | 2009-07-28 | 2015-12-16 | 宏正自动科技股份有限公司 | Multi-computer switch system |
| CN102006443A (en) * | 2010-12-07 | 2011-04-06 | 深圳市巨潮科技有限公司 | Port switching and signal processing method and circuit |
| CN102006443B (en) * | 2010-12-07 | 2012-02-22 | 深圳市巨潮科技有限公司 | Port switching and signal processing method and circuit |
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| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |