CN101055514A - 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 PDF

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Publication number
CN101055514A
CN101055514A CNA2006100736415A CN200610073641A CN101055514A CN 101055514 A CN101055514 A CN 101055514A CN A2006100736415 A CNA2006100736415 A CN A2006100736415A CN 200610073641 A CN200610073641 A CN 200610073641A CN 101055514 A CN101055514 A CN 101055514A
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CN
China
Prior art keywords
digital
digital picture
video
picture interface
pin
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006100736415A
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Chinese (zh)
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CN100461087C (en
Inventor
陈勇志
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AOpen Inc
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AOpen Inc
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Filing date
Publication date
Application filed by AOpen Inc filed Critical AOpen Inc
Priority to CNB2006100736415A priority Critical patent/CN100461087C/en
Priority to EP20060255991 priority patent/EP1845589B1/en
Priority to DE200660004701 priority patent/DE602006004701D1/en
Publication of CN101055514A publication Critical patent/CN101055514A/en
Application granted granted Critical
Publication of CN100461087C publication Critical patent/CN100461087C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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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  • Controls And Circuits For Display Device (AREA)

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

Computer system, main frame and the video frequency transmitter of the output of tool analog video digitizer
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.Two kinds of current video signal difference analog video and digital videos, 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 be positioned at the other end of this cable group and to connect through this cable group and this first pin group.The analog video output port is to be positioned at the other end of this cable group and to connect 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.
Main frame 30 has a casing 31 and and is contained in motherboard 32 in the casing 31.At first explanation is, main frame 30 has more other the basic member of computing machine, as microprocessor (figure does not show), power supply unit 33, internal memory (figure does not show) or the like, should not be subject to the revealer of present embodiment institute.
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.
Pin The pin definition Function
The first pin group 01 TMDS?DATA?2- Digital video signal TDC2-0 refers to first group of TDMS passage
02 TMDS?DATA?2+ Digital video signal TDC2 0 refers to first group of TDMS passage
03 TMDS?DATA?2/4?SHIELD Ground connection
04 TMDS?DATA?4- Do not use, refer to second group of TDMS passage
05 TMDS?DATA?4+ Do not use, refer to second group of TDMS passage
06 DDC?CLK The DDC sequential of digital video
07 DDC?DATA The DDC data of digital video
09 TMDS?DATA?1- Digital video signal TDC1-0 refers to first group of TDMS passage
10 TMDS?DATA?1+ Digital video signal TDC1 0 refers to first group of TDMS passage
11 TMDS?DATA?1/3?SHIELD Ground connection
12 TMDS?DATA?3- Do not use, refer to second group of TDMS passage
13 TMDS?DATA?3+ Do not use, refer to second group of TDMS passage
14 +5V?Power The DDC of digital video uses
15 GND(ANALOG) Ground connection
16 Hot?Plug?Detect Hot plug detects
17 TMDS?DATA?0- Digital video signal TDC0-0 refers to first group of TDMS passage
18 TMDS?DATA?0+ Digital video signal TDC0 0 refers to first group of TDMS passage
19 TMDS?DATA?0/5?SHIELD Ground connection
22 TMDS?CLK?SHIELD Ground connection
23 TMDS?CLK+ The sequential TLC of digital video
24 TMDS?CLK- The sequential TLC-of digital video
25 MOUNTING1 Ground connection
26 MOUNTING2 Ground connection
C5 A?GND Ground connection
The second pin group 08 V?SYNC The vertical synchronizing signal of analog video
15 GND(ANALOG) Ground connection
20 TMDS?DATA?5- The DDC sequential of analog video refers to second group of TDMS passage
21 TMDS?DATA?5+ The DDC data of analog video refer to second group of TDMS passage
C1 RED Red
C2 GREED Green
C3 BLUE Blue
C4 H?SYNC The horizontal-drive signal of analog video
C5 A?GND Ground connection
C5A A?GNS Ground connection
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, index word image 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 (9)

1. the video frequency transmitter of tool simulation and digital video output function in order to transmit a vision signal, is to comprise:
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 be positioned at the other end of this cable group and to connect through this cable group and this first pin group; And
One analog video output port is to be positioned at the other end of this cable group and to connect through this cable group and this second pin group.
2. video frequency transmitter as claimed in claim 1, wherein, this cable group has two transmission lines, respectively this digital video output port and this analog video output port are connected to this digital picture interface integration input port.
3. 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.
4. video frequency transmitter as claimed in claim 4, wherein, this display data channel of the second pin group has a single data pin and a sequential pin with pin.
5. video frequency transmitter as claimed in claim 1, wherein, the specification of this digital picture interface output port is a digital picture interface numeral.
6. the computer system of tool simulation and digital video output function is to comprise:
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; 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.
7. computer system as claimed in claim 6, wherein, the second pin group that this digital picture interface is integrated input port contains a display data channel pin.
8. computer system as claimed in claim 6, more comprise a digital indicator with transmit port of a confession digital video input, and this video frequency transmitter has more to connect to this digital picture interface once this cable group and integrates the digital picture interface output port of integrating the first pin group of transmit port in the input port with this digital picture interface, and this digital picture interface output port is the transmit port that connects separably to this digital indicator.
9. the main frame of tool simulation and digital video output function is to comprise:
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.
CNB2006100736415A 2006-04-13 2006-04-13 Computer system possessing analog digital video output, host and video transmission device Expired - Fee Related CN100461087C (en)

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
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
DE200660004701 DE602006004701D1 (en) 2006-04-13 2006-11-23 Computer system with analog and digital image signal output, and associated computer and transmission device

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 true CN101055514A (en) 2007-10-17
CN100461087C CN100461087C (en) 2009-02-11

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EP (1) EP1845589B1 (en)
CN (1) CN100461087C (en)
DE (1) DE602006004701D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103246322A (en) * 2012-02-09 2013-08-14 广达电脑股份有限公司 Computer system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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
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

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Publication number Priority date Publication date Assignee Title
TW461634U (en) * 2000-09-29 2001-10-21 Hon Hai Prec Ind Co Ltd Adapting connector
US6790094B1 (en) * 2002-09-12 2004-09-14 Formac Elektronik Gmbh Connector to couple a monitor to a computer
GB2394124B (en) * 2002-09-12 2006-11-22 Adder Tech Ltd Computer connection apparatus
CN2691170Y (en) * 2004-01-09 2005-04-06 朱路 Two-way multimedia signal transmission device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103246322A (en) * 2012-02-09 2013-08-14 广达电脑股份有限公司 Computer system
CN103246322B (en) * 2012-02-09 2016-06-01 广达电脑股份有限公司 Computer system

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Publication number Publication date
DE602006004701D1 (en) 2009-02-26
CN100461087C (en) 2009-02-11
EP1845589B1 (en) 2009-01-07
EP1845589A1 (en) 2007-10-17

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