CN100461087C - Computer system possessing analog digital video output, host and video transmission device - Google Patents
Computer system possessing analog digital video output, host and video transmission device Download PDFInfo
- Publication number
- CN100461087C CN100461087C CNB2006100736415A CN200610073641A CN100461087C CN 100461087 C CN100461087 C CN 100461087C CN B2006100736415 A CNB2006100736415 A CN B2006100736415A CN 200610073641 A CN200610073641 A CN 200610073641A CN 100461087 C CN100461087 C CN 100461087C
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- Prior art keywords
- digital picture
- digital
- picture interface
- video
- pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/06—Connectors or connections adapted for particular applications for computer periphery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
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Abstract
A video transmission device having simulation and digital video output function, for transmitting a video signal, has a cable group, a digital image interface integrated input port which is located at one end of the cable group and is used for receiving the video signal and a digital image interface output port located at the other end of the cable group as well as an analog video output port. The digital image interface integrated input port has a first pin group for the digital video and a second pin group for the analog video, the digital image interface output port bonding with the first pin group via the cable group and the analog video output port bonding with the second pin group via the cable group, for respectively outputing the digital video and the analog video.
Description
Technical field
The present invention relates to the video frequency transmitter of the video transmission between a kind of display and main frame, particularly a kind of digital indicator and conformable display of making carries out the tool simulation of double screen broadcast and computer system and the main frame and the video frequency transmitter of digital video output function.
Background technology
At present main frame mostly utilizes a video transmission line to connect display, with video signal transmission to display.Current video signal is divided into two kinds of analog video and digital videos, and the transmit port of general analog video is the analog transmission port such as D-Sub, as is used for conventional cathode ray tube (CRT) display; And the transmit port of digital video is digital picture interface transmit port (Digital VisualInterface is hereinafter to be referred as DVI), as is used for LCD.
Should become following main flow though the image display quality of digital video is better, in vogue very of a specified duration because of analog video, the user often has display or the main frame that still uses analog video on hand at present.For also holding with existing analog video transmit port specification, display of releasing or main frame need consider that still the analog transmission port is set or the video transmission line of the tool signaling transfer point of arranging in pairs or groups except that digital video transmission port at present, as DVI TO VGA.
Along with more tending to become strong, the image-capable of main frame had the function of supporting that double screen output shows, two video transmission ports after can utilizing the video transmission line of one-to-two or being located at main frame greatly again.But the video transmission port of the display requirement of the double screen of the video transmission line of one-to-two output at present two displays is required to be same size, refer to be all analog video or digital video, can't use the display of an analog video and the display of a digital video to carry out the double screen demonstration simultaneously, unavoidably the user be brought inconvenience.
Summary of the invention
Therefore, purpose of the present invention is promptly at computer system and main frame and the video frequency transmitter of the tool simulation that provides a kind of different size display can carry out the double screen demonstration with the digital video output function.
So tool simulation of the present invention is to comprise a cable group, a digital picture interface integration input port, a digital picture interface output port and an analog video output port in order to transmission video signal with the video frequency transmitter of digital video output function.It is to be positioned at an end of this cable group and in order to receiving this vision signal that the digital picture interface is integrated input port, and this digital picture interface input port has the second pin group that the first pin group that a digital video uses and an analog video are used.This digital picture interface output port is to link to each other with first transmission line of this cable group other end, and connects through this cable group and this first pin group.The analog video output port is to link to each other with second transmission line of this cable group other end, and connects through this cable and this second pin group.
By this, the video frequency transmitter of tool of the present invention simulation and digital video output function is output digital video and analog video simultaneously, uses for digital indicator and conformable display, the display of different size can be used simultaneously and can carry out the double screen broadcast.
Description of drawings
Fig. 1 is tool of the present invention simulation and the synoptic diagram of the preferred embodiment of the computer system of digital video output function;
Fig. 2 is the synoptic diagram of video transmission in the motherboard of present embodiment;
Fig. 3 is the pin configuration schematic diagram of DVI-I transmit port in the present embodiment;
Fig. 4 is the pin synoptic diagram of DVI-I transmit port in the present embodiment;
Fig. 5 is a pin synoptic diagram in the analog video output port in the present embodiment;
Fig. 6 is that digital picture interface integration input port connects to the conspectus of the transmission line of digital picture interface output port in the present embodiment video frequency transmitter; And
Fig. 7 is that digital picture interface integration input port connects to the conspectus of the transmission line of analog video output port in the present embodiment video frequency transmitter.
The reference numeral explanation
30 main frames
31 casings
32 motherboards
321 north bridge chips
322 DVI forwarder/digital picture interface forwarder
323 DVI-I transmit pories
33 power supply units
40 video frequency transmitters
41 cable group, 411,412 transmission lines
42 digital picture interfaces are integrated input port
43 digital picture interface output ports
44 analog video output ports
50 digital indicators
501 transmit pories
60 conformable displays
601 transmit pories
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of a following cooperation preferred embodiment with reference to the accompanying drawings, can clearly present.
As Fig. 1, tool simulation of the present invention comprises a main frame 30, a video frequency transmitter 40 and a conformable display 60 of digital indicator 50 and such as the cathode ray tube (CRT) display such as LCD (LCD) with the computer system of digital video output function.
Because current digital image interface (hereinafter to be referred as DVI) is except that the planning transmission digital video and plan the transportation simulator video, integrating (hereinafter to be referred as DVI-I) transmit port as digital video interface can transmission of digital and analog video.Therefore, the main frame 1 of present embodiment adopts DVI.Specifically, as Fig. 2, motherboard 32 has one and is responsible for the north bridge chips 321 of image, the DVI-I transmit port 323 that digital picture interface (DVI) forwarder (hereinafter to be referred as the DVI forwarder) 322 and is pegged graft for video frequency transmitter 40.DVI-I transmit port 323 has the second pin group that the first pin group that a digital video uses and an analog video are used.North bridge chips 321 is sent to the first pin group with digital video behind DVI forwarder 322 format transformations, and north bridge chips 321 is sent to the second pin group with analog video, so allows DVI-I transmit port 323 exportable numeral and analog videos.
For supporting the function of plug and play (PLUG-AND-PLAY), the main communication interface that display 50,60 and main frame are 30 is display data channel (Display Data Channel is hereinafter to be referred as DDC).DDC is by the VESA of the video standard that is responsible to define industry member (Video ElectronicStandards Association, video electrical standard association) works out, it can transfer to main frame 30 by display 50 or 60 with the series of values signal, wherein comprise basic product discriminating, basic parameter, demonstration specification, when main frame 30 detects these information, can be planned and be shown optimum resolution automatically, be given display 50 or 60 to transmit optimal video.Therefore, the planning of the first pin group of existing DVI-I transmit port has the pin for transmission DDC signal, makes main frame 30 can allow digital indicator 50 correct display digit videos.But the second pin group that existing DVI-I transmit port is used for analog video does not have planning transmission DDC signal, causes main frame 30 possibly can't allow conformable display 60 normal analog video signals.
Moreover, the first pin group of existing DVI-I transmit port planning usually has two TDMS passages, but because of using two TDMS passages to need to judge in real time and conversion TMDS passage using time, design in than complexity and use the image resolution ratio of one group of TDMS channel also enough; For example when using one group of TDMS channel transfer, under 85-Hz screen updates speed, resolution can reach 1280*1024 (SXGA), and screen updates speed is when reducing to 60-Hz, resolution more can reach 1600*1200 (UXGA), so actual at present the use only used one group of TDMS passage usually, and another group TDMS passage is on the shelf.Therefore, present embodiment plans the DDC signal of using for the transportation simulator video to north bridge chips 321 another two pins of organizing in the TDMS passage on the shelf.Therefore, as the pin definition of Fig. 3, Fig. 4 and following table, be different from the pin definition of existing DVI-I transmit port, the second pin group of the DVI-I transmit port 123 of present embodiment is more planned the pin 20,21 for transmission DDC signal.It should be noted that the partial earth pin is that the first pin group and second pin are shared, as 5, C5 or the like.
So, north bridge chips 321 is in output during analog video, can utilize pin 20,21 in the second pin group to obtain the DDC of conformable display 60 earlier, can normally show to guarantee conformable display 60.
As Fig. 1, the video frequency transmitter 40 of present embodiment is one one and is divided into two video transmission line and has a cable group 41, digital picture interface and integrate input port 42, a digital picture interface output port 43 and an analog video output port 44.
The digital picture interface integrate input port 42 be cooperate with the DVI-I transmit port 323 of main frame 30 and be same size have with aforementioned table in identical one first pin group and the one second pin group of definition, in order to be plugged in DVI-I transmit port 323 to receive the vision signal from main frame 30, the digital picture interface is integrated pin such as Fig. 4 of input port 42.Cable group 21 has two transmission lines 411,412, and transmission line 411 is to make the pin of digital picture interface output port 43 be electrically connected to the first pin group, and transmission line 412 is to make the pin of analog video output port 44 be electrically connected to the second pin group.
The specification of the transmit port 501 of digital indicator 50 is digital visual interface numeral (hereinafter to be referred as DVI-D) in the present embodiment, the specification of digital picture interface output port 43 can be DVI-I or DVI-D, this routine digital picture interface output port 43 is DVI-I, and the specification of the transmit port 601 of conformable display 60 is D-Sub, so as Fig. 5, the specification of analog video output port 44 also is D-Sub.As Fig. 6, transmission line 411 is integrated in the input port 42 the first pin group with the digital picture interface and is connected that untapped pin 4,5,12,13 does not then connect with digital picture interface output port 43 to digital picture interface output port 43, the first pin groups.Again, as Fig. 7, the second pin group that transmission line 412 is integrated the digital picture interface in the input port 42 connects to the pin of analog video output port 44.Again, for making the signal transmission better, connect transmission digital video signal and DDC, sequential pin 1 and 2 in the present embodiment transmission line 411,6 and 7,9 and 10,17 and 18,23 and 24 two adjacent leads are mutual windings, transmission DDC in the transmission line 412 and ground connection pin 20 and 21,15 two adjacent leads are mutual windings.
So, main frame 30 only need be provided with single the DVI-I transmit port 323 and the video frequency transmitter 40 of arranging in pairs or groups, can arrange in pairs or groups digital indicator 50 or conformable display 60, even both show simultaneously.Specifically, when collocation digital indicator 50, only need the digital picture interface of video frequency transmitter 40 is integrated the transmit port 501 that input port 42 is plugged to the DVI-I transmit port 323 of main frame 30 and digital picture interface output port 43 is plugged to digital indicator 50, after south emigrant's chip 321 of main frame 30 reads the DDC of digital indicator 50 earlier, be about to show through video frequency transmitter 40 transmission of digital displays 50 again after digital video signal is delivered to DVI forwarder 322 format transformations.When collocation conformable display 60, need the digital picture interface of video frequency transmitter 40 is integrated the transmit port 601 that input port 42 is plugged to the DVI-I transmit port 323 of main frame 30 and analog video output port 44 is plugged to conformable display 60, main frame 30 reads the DDC of conformable display 60 earlier, correct analog video signal can be transferred to conformable display 60 and show.Again, when desiring to carry out the double screen broadcast, the digital picture interface of video frequency transmitter 40 is integrated the DVI-I transmit port 323 that input port 42 is plugged to main frame 30, when digital picture interface output port 33 is plugged to the transmit port 501 of digital indicator 50 and analog video output port 44 and is plugged to the transmit port 601 of conformable display 60, main frame 30 reads the DDC of digital indicator 50 and conformable display 60 earlier, respectively correct digital video and analog video are sent to digital indicator 50 and conformable display 60 broadcasts through video frequency transmitter 40 again, to reach the display 50 that can utilize two kinds of different sizes, 60 carry out the purpose that double screen shows.
According to preceding described, the second pin group of using for analog video in the computer system planning DVI-I transmit port 323 of tool of the present invention simulation and digital video dual output has the pin 20,21 of transmission DDC signal, main frame 1 can be arranged in pairs or groups read the DDC of conformable display 60 and can correctly order about conformable display 60 and play.Again, the video frequency transmitter 40 of collocation present embodiment can use main frame 30 with digital indicator 50 or conformable display 60 collocation, also can make digital indicator 50 and conformable display 60 carry out double screen simultaneously and play, make the different size display can carry out the goal of the invention that double screen shows to reach.
The above person of thought, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and invention description content generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.
Claims (7)
1. the video frequency transmitter of tool simulation and digital video output function in order to transmit a vision signal, is characterized in that comprising:
One cable group;
One digital picture interface is integrated input port, is to be positioned at an end of this cable group and in order to receiving this vision signal, and this digital picture interface input port has the second pin group that the first pin group that a digital video uses and an analog video are used;
One digital picture interface output port is to link to each other with first transmission line of this cable group other end, and connects through this cable group and this first pin group; And
One analog video output port is to link to each other with second transmission line of this cable group other end, and connects through this cable group and this second pin group.
2. video frequency transmitter as claimed in claim 1, wherein, the second pin group that this digital picture interface is integrated input port contains a display data channel pin.
3. video frequency transmitter as claimed in claim 2, wherein, this display data channel of the second pin group has a single data pin and a sequential pin with pin.
4. video frequency transmitter as claimed in claim 1, wherein, the specification of this digital picture interface output port is a digital picture interface numeral.
5. the computer system of tool simulation and digital video output function is characterized in that comprising:
One main frame, have a casing and and be arranged on the interior motherboard of this casing, and this motherboard contains that a north bridge chips, connects the digital picture interface forwarder of this north bridge chips and a digital picture interface is integrated transmit port, this digital picture interface integrate transmit port have one connect to this digital picture interface forwarder with the first pin group and of output digital video connect to this north bridge chips to export the second pin group of analog video;
One conformable display has a transmit port for the analog video input;
One has the digital indicator of the transmit port of a confession digital video input; And
One video frequency transmitter, have one and connect the digital picture interface of integrating transmit port to this digital picture interface separably and integrate input port, an analog video output port and and this digital picture interface is integrated in input port integrate the corresponding pin of the second pin group of transmit port and connected, and this analog video output port is the transmit port that connects separably to this conformable display to the cable group of analog video output port with this digital picture interface; And this video frequency transmitter has more once this cable group and connects the digital picture interface output port of integrating pin group corresponding with the first pin group of this digital picture interface integration transmit port in the input port to this digital picture interface, and this digital picture interface output port is the transmit port that connects separably to this digital indicator.
6. computer system as claimed in claim 5, wherein, the second pin group that this digital picture interface is integrated input port contains a display data channel pin.
7. the main frame of tool simulation and digital video output function is characterized in that comprising:
One casing; And
One is arranged on the motherboard in this casing, have digital picture interface forwarder and digital picture interface integration transmit port that a north bridge chips, connects this north bridge chips, this digital picture interface integrate transmit port have one connect to this digital picture interface forwarder with the first pin group and of output digital video connect to this north bridge chips exporting the second pin group of analog video, and this second pin group contains a display data channel pin.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100736415A CN100461087C (en) | 2006-04-13 | 2006-04-13 | Computer system possessing analog digital video output, host and video transmission device |
| DE200660004701 DE602006004701D1 (en) | 2006-04-13 | 2006-11-23 | Computer system with analog and digital image signal output, and associated computer and transmission device |
| EP20060255991 EP1845589B1 (en) | 2006-04-13 | 2006-11-23 | Computer system having analog and digital video signal output functionality, and computer device and video signal transmitting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100736415A CN100461087C (en) | 2006-04-13 | 2006-04-13 | Computer system possessing analog digital video output, host and video transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055514A CN101055514A (en) | 2007-10-17 |
| CN100461087C true CN100461087C (en) | 2009-02-11 |
Family
ID=37891904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100736415A Expired - Fee Related CN100461087C (en) | 2006-04-13 | 2006-04-13 | Computer system possessing analog digital video output, host and video transmission device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1845589B1 (en) |
| CN (1) | CN100461087C (en) |
| DE (1) | DE602006004701D1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200739408A (en) | 2006-04-03 | 2007-10-16 | Aopen Inc | Computer system having analog and digital video output functions, computer mainframe, and video signal transmission device |
| TWI456401B (en) * | 2012-02-09 | 2014-10-11 | Quanta Comp Inc | Computer system |
| CN104426025B (en) * | 2013-09-03 | 2018-04-17 | 鸿富锦精密工业（深圳）有限公司 | Electronic device connects system |
| CN105141905B (en) * | 2015-08-14 | 2019-09-10 | Tcl新技术（惠州）有限公司 | A kind of joined screen system and its implementation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343957B1 (en) * | 2000-09-29 | 2002-02-05 | Hon Hai Precision Ind. Co., Ltd. | Electrical adapter |
| GB2394124A (en) * | 2002-09-12 | 2004-04-14 | Adder Tech Ltd | Computer connection apparatus and devices |
| US6790094B1 (en) * | 2002-09-12 | 2004-09-14 | Formac Elektronik Gmbh | Connector to couple a monitor to a computer |
| CN2691170Y (en) * | 2004-01-09 | 2005-04-06 | 朱路 | Two-way multimedia signal transmission device |
-
2006
- 2006-04-13 CN CNB2006100736415A patent/CN100461087C/en not_active Expired - Fee Related
- 2006-11-23 EP EP20060255991 patent/EP1845589B1/en not_active Expired - Fee Related
- 2006-11-23 DE DE200660004701 patent/DE602006004701D1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6343957B1 (en) * | 2000-09-29 | 2002-02-05 | Hon Hai Precision Ind. Co., Ltd. | Electrical adapter |
| GB2394124A (en) * | 2002-09-12 | 2004-04-14 | Adder Tech Ltd | Computer connection apparatus and devices |
| US6790094B1 (en) * | 2002-09-12 | 2004-09-14 | Formac Elektronik Gmbh | Connector to couple a monitor to a computer |
| CN2691170Y (en) * | 2004-01-09 | 2005-04-06 | 朱路 | Two-way multimedia signal transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1845589B1 (en) | 2009-01-07 |
| CN101055514A (en) | 2007-10-17 |
| DE602006004701D1 (en) | 2009-02-26 |
| EP1845589A1 (en) | 2007-10-17 |
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Granted publication date: 20090211 Termination date: 20190413 |
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