CN100442206C - Image processing cards with digital input and output modules - Google Patents
Image processing cards with digital input and output modules Download PDFInfo
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- CN100442206C CN100442206C CNB2005100696521A CN200510069652A CN100442206C CN 100442206 C CN100442206 C CN 100442206C CN B2005100696521 A CNB2005100696521 A CN B2005100696521A CN 200510069652 A CN200510069652 A CN 200510069652A CN 100442206 C CN100442206 C CN 100442206C
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Abstract
The present invention relates to an image processing card with a digital input and output module, which comprises a processor and a connecting wire, wherein the processor is arranged on the image processing card, and is provided with the digital input and output module; the digital input and output module is used for outputting or receiving a digital signal; the connecting wire is electrically connected to the processor for transferring the digital signal between the processor and an external electronic device.
Description
Technical field
The relevant a kind of image processing cards of the present invention, and particularly relevant a kind of image processing cards with digital input and output modules.
Background technology
Numeral input-output card (Digital Input/Output Card) is the interface card that the collocation of a kind of computer system is used, and often is used in industrial control field and very important.The numeral input-output card brain system of can powering is sent digital signal when program is carried out, to control the switchgear or the relay of outside; Or in order to receive the status signal (for example opening status signal or off status signal) that outside switchgear or relay are passed back, with foundation as user's operation or procedure auto-control.
Fig. 1 is a kind of have the traditional electrical brain system of digital input-output card and synoptic diagram of utility appliance thereof.This computer system 100 disposes a display card 102 and a digital input-output card 104 simultaneously.Display card 102 is to be connected with a display device 122 via a video signal connecting line 112, to transmit signal of video signal.104 of numeral input-output cards expand subcard 124 via another digital signal connecting line 114 (for example winding displacement) and and are connected, with output or receiving digital signals.
As shown in Figure 1, according to the traditional configuration mode of this kind, display card 102 and digital input-output card 104 must take two interface card slots.Yet the interface card slot number that general computer system is had is limited, and it can keep to the resource of those interface card slots also limitedly, can't expand the number of its interface card slot arbitrarily.Moreover, if some work must use display card 102 and digital input-output card 104 simultaneously, then this traditional configuration mode not only causes the difficulty that signal transmits, and can increase the burden of the processor of computer system 100, ties down the usefulness of computer system 100.
Summary of the invention
Therefore a purpose of the present invention provides a kind of image processing cards, and digital input and output modules is integrated in wherein, thoroughly utilizing the resource of image processing cards, and increases more various application mode.
Another purpose of the present invention is that a kind of image processing cards with digital input and output modules is being provided, in order to simplify the bang path between signal and to alleviate the burden of the central processing unit of computer system.
Comprise a processor and a connecting line according to the image processing cards with digital input and output modules of the present invention.Processor is disposed on the image processing cards, and has a digital input and output modules.This digital input and output modules is in order to output or receives a digital signal, and this processor carries out interactive processing to this digital signal and a signal of video signal.Connecting line is electrically connected at processor, in order to transmit this digital signal between this processor and an external electronic.
Description of drawings
For allowing above-mentioned and other purposes, characteristics, advantage of the present invention and can become apparent, preferred embodiment of the present invention is elaborated below in conjunction with accompanying drawing:
Fig. 1 is a kind of synoptic diagram of traditional electrical brain system;
Fig. 2 A is the synoptic diagram of a preferred embodiment of the present invention;
Fig. 2 B is the synoptic diagram of another preferred embodiment of the present invention;
Fig. 2 C is the synoptic diagram of another preferred embodiment of the present invention; And
Fig. 3 is the computer system synoptic diagram of a preferred embodiment of the present invention.
Embodiment
The present invention is integrated in digital input and output modules in the image processing cards, export or receiving digital signals available pin position by processor, so not only can be apt to resource with image processing cards, and can further promote interactive relationship between signal of video signal and digital signal, to simplify the bang path between signal and to alleviate the burden of the central processing unit of computer system.
Fig. 2 A is the synoptic diagram of a preferred embodiment of the present invention.This image processing cards 202a comprises a processor 206 and a connecting line 214.Processor 206 is disposed on the image processing cards 202a, and this processor 206 has a digital input and output modules 208.This digital input and output modules 208 is in order to output or receives a digital signal.Connecting line 214 is electrically connected at processor 206, in order to this digital signal between a transmitting processor 206 and the external electronic 224.
That is to say that this moment, this processor had a plurality of pin position, and the some of those pin positions is be responsible for to handle signal of video signal, another of those pin positions partly then is responsible for processing digital signal.Certainly, person skilled in the art person is when understanding, and after specific arrangement design, digital signal also might be output or receive via other pin positions that has other purposes originally concurrently, is not limited in the above-mentioned pin position that is not used.
In addition, if image processing cards is with regard to the image processing chip of configuration originally, its remaining pin position is not applied and is used, or in order to share the work of image processing chip, also can on image processing cards, additionally add an I/O chip, to be responsible for the work of output, reception even processing digital signal.At this moment, above-mentioned digital input and output modules promptly is implemented in this I/O chip of adding.What pay special attention to is, if image processing cards has image processing chip and I/O chip simultaneously, then need to cooperate by suitable circuit planning and software, this digital input and output modules also can be implemented in image processing chip and the I/O chip certainly simultaneously.
The connecting line of this preferred embodiment can be S terminal (S-Video) connecting line, digital video interface (Digital Visual Interface; DVI) connecting line, winding displacement (bus line) or other connecting lines that is suitable for.Preferred embodiment of the present invention can increase the interactive application between its digital signal and vision signal by using S terminal connecting line or digital video interface connecting line, below can be described further these application modes respectively.
Fig. 2 B is the synoptic diagram of another preferred embodiment of the present invention.Compared to the preferred embodiment shown in Fig. 2 A, this image processing cards 202b also comprises a holding circuit 234.As mentioned above, the processor 206 in order to output and receiving digital signals may be the image processing chip.Because this type of image processing chip possesses processing speed and powerful IPF fast usually, its price also so quite expensive.Destroyed by the digital signal of external world's input because of carelessness for fear of this expensive processor 206, this preferred embodiment electrically connects this holding circuit 234 between processor 206 and connecting line 214.So filter and have big electric current or high-tension digital signal, hurt its original IPF to prevent the direct disposer 206 of digital signal.
On the other hand, the above-mentioned digital signal of being exported or being received by digital input and output modules 208 is switching signal normally, for example start signal be set and have a high levle (as have+3.3V or+5V voltage), and shutdown signal is set and has a low level (as having+0V or negative voltage).Yet the magnitude of voltage of simple switching signal or current value may not apply use.And in practical application, only having two kinds of different accurate positions of height can't provide various variation pattern sometimes.Therefore, another preferred embodiment of the present invention also provides an expansion subcard to improve this situation.
Fig. 2 C is the synoptic diagram of another preferred embodiment of the present invention.Compared to the preferred embodiment shown in Fig. 2 A, this image processing cards 202c also comprises one and expands subcard 244, is electrically connected between connecting line 214 and the external electronic 224, in order to adjust this digital signal.For instance, the digital signal that digital input and output modules 208 is exported or received, its magnitude of voltage or current value can expand subcard 224 by this and be amplified or dwindle, and make it accord with the scope of application of digital input and output modules 208 or external electronic 224.
Perhaps, this expands subcard 224 further can (be transferred to the digital signal of external electronic 224 according to digital signal by digital input and output modules 208, or transfer to the digital signal of digital input and output modules 208 by external electronic 224), produce a magnitude of voltage or a current value or another has the oscillator signal of characteristic frequency, for inputing to digital input and output modules 208 or external electronic 224.
Fig. 3 is the synoptic diagram of the computer system and the utility appliance thereof of a preferred embodiment of the present invention.Configuration has the image processing cards 302 of digital input and output modules in this computer system 300.Image processing cards 302 is to be connected with a display device 322 to transmit signal of video signal via a video signal connecting line 312, and via a digital signal connecting line 314 (for example winding displacement) with output digital signal to an external electronic 324, or this external electronic 324 receiving digital signals certainly.
It should be noted that, if this outside electronic installation 324 electrically connects with display device 322, for example external electronic 324 is integrated among the display device 322, or external electronic 324 can electrically connect image processing cards 302 by display device 322, then video signal connecting line 312 has an opportunity to be integrated into single connecting line with digital signal connecting line 314, for example wherein has several S terminal connecting lines that are not used sub-line or digital video interface connecting line.
Below illustrate the application of various different modes of the present invention.These three application respectively with the signal of video signal of image processing cards with and the signal of video signal of the digital signal of externally output, image processing cards with and the signal of video signal of received digital signal and image processing cards with and the digital signal of input and output, describe signal of video signal and digital signal in detail and how to carry out interaction.
In following application, preferably can select for use S terminal connecting line or digital video interface connecting line as connecting line.Owing to all have the sub-line that several are not used in S terminal connecting line or the digital video interface connecting line, this a little line promptly can be used to be responsible for transmitting above-mentioned digital signal, therefore for application of the present invention, S terminal connecting line or digital video interface connecting line are particularly suitable in order to be responsible for transmitting digital signals and signal of video signal simultaneously.
So, can transmit the video signal connecting line of signal of video signal with being responsible for and the connecting line of responsible transmitting digital signals is incorporated in single the connecting line, to reduce space and cost waste.Yet, use two different connecting lines to be responsible for the transfer mode of digital signal and signal of video signal respectively respectively, also should close in spirit of the present invention and scope.
Use one be the explanation image processing cards signal of video signal with and the digital signal of externally output between interactive relationship.In this used, its external electronic had the display device of specific function, for example installs the computer screen of light-emitting component or driving element additional, and this light-emitting component or this driving element can be controlled by the digital signal that digital input and output modules is exported.
In particular, when its external electronic for (for example: during light emitting diode (LED)) computer screen having light-emitting component, when image processing is stuck in via the connecting line output image signal to the computer screen, can be under given conditions (for example: after specific image signal continues to play a period of time, specific image signal finished the back), send digital signal to this computer screen via same connecting line, make its light-emitting component continue luminous or flicker.
Perhaps, when its external electronic is when having the computer screen of driving element (for example: rock device or jacking gear), when image processing is stuck in via the connecting line output image signal to the computer screen, (for example: trigger specific image signal, beginning or finish the playing video signal) under given conditions, send digital signal to this computer screen via same connecting line, make driving element begin to drive the computer screen, for example make this computer screen begin to rock or carry out the action of position lifting.
Use two be the explanation image processing cards signal of video signal with and the interactive relationship of received digital signal.In this used, its external electronic was an inductor, for example showed inductor for simple mechanical inductor or than complicated electronics.This inductor can be according to the corresponding digital signal that produces of its situation of responding to, judges and carries out respective handling for digital input and output modules.
In particular, this inductor is the inductive switching device of opening or closing with induction door upward for being installed in door for example.This inductive switching device can and cut out according to the unlatching of door and produce start signal (for example for having the digital signal of high levle) and shutdown signal (for example for having the digital signal of low level) respectively.And this inductor is also built-in or connect a recording device (for example video camera) in addition.These recording device institute picked image data are also transmitted by same connecting line.
So, when door was unlocked, the inductive switching device can correspondingly produce start signal, and via connecting line this start signal is sent to digital input and output modules.Digital input and output modules promptly begins the program of making video recording after receiving start signal, with record via same connecting line transmit by recording device institute picked image signal.So, this application can be used for carrying out gate inhibition's safety control, the turnover situation when directly the each door of record is unlocked by single image processing cards, and also its recorded content is very efficient, can not take a large amount of memory capacity.
The above-mentioned program of making video recording can finish according to the shutdown signal that the inductive switching device is produced, and perhaps also can fix the writing time of the program of at every turn making video recording, and perhaps opens the door at every turn and only gets an image (as taking a picture).Person skilled in the art person was when using according to needing at that time to adjust with revising this, and its embodiment is not limited in the exemplary context that lift in this place.
Use three be the explanation image processing cards signal of video signal with and the digital signal of input and output between interactive relationship.In this used, its external electronic was the touch screen.The signal of the traditional touch screen of following explanation earlier transmits situation.
Traditional touch screen is made up of screen part and the Trackpad that is arranged at this screen part top.Sensing after the user pushes, Trackpad can produce position signalling that should pressing position, and this position signalling can be via traditional connecting line, for example: RS232, PS2 or USB connecting line are sent to computer system.Computer system is understood this position signalling, again in conjunction with the driver of display card, corresponding image that display card produced via another video signal connecting line transmission and be shown in above-mentioned screen partly, is shown with the touch control operation of finishing the user.
In other words, traditional touch screen, its signal of video signal and position signalling are to transmit via different connecting lines respectively, need take bigger entity space, and its signaling path is also comparatively complicated.And the interactive processing between two signals is that the central processing unit by computer system carries out, and so can reduce the usefulness of computer system and take its limited system resource.
Using in three, can transmit position signalling and signal of video signal via same connecting line.And the processor that the interactive processing between two signals can be transferred on the image processing cards fully carries out, and directly finishes the most touch control operation of user at image processing cards and shows.
In particular, this touch screen is made up of screen part and the Trackpad that is arranged on this screen equally, and this screen part and Trackpad are to electrically connect with same connecting line (for example: S terminal connecting line or digital video interface connecting line) simultaneously, to receive and to transmit signal of video signal and digital signal respectively.
Sensing after the user pushes, Trackpad can produce position signalling that should pressing position, and this position signalling can be sent to digital input and output modules on the image display card via connecting line.Afterwards, the processor on the display card is understood this position signalling, and signal of video signal handled with it do interactive processing, can directly finish most touch control operation and show in image processing cards.So, not only can simplify the bang path between signal effectively, and alleviate the burden of the central processing unit of computer system significantly.
Though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any person skilled in the art person; without departing from the spirit and scope of the present invention; when the change that can do various equivalences or replacement, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.
Claims (9)
1. image processing cards with digital input and output modules comprises:
One processor, be disposed on this image processing cards, wherein this processor has a digital input and output modules, this digital input and output modules is in order to output or receive a digital signal, and this processor carries out interactive processing to this digital signal and a signal of video signal, and wherein this signal of video signal changes to some extent according to this digital signal change; And
One connecting line is electrically connected at this processor, in order to transmit this digital signal between this processor and an external electronic.
2. the image processing cards with digital input and output modules as claimed in claim 1 is characterized in that this processor is an image processing chip or an I/O chip.
3. the image processing cards with digital input and output modules as claimed in claim 1, it is characterized in that this processor has a plurality of pin position, the some of those pin positions is be responsible for to handle signal of video signal, and another of those pin positions partly is to be responsible for handling this digital signal.
4. the image processing cards with digital input and output modules as claimed in claim 1 is characterized in that this connecting line is a S terminal connecting line, a digital video interface connecting line or a winding displacement.
5. the image processing cards with digital input and output modules as claimed in claim 1; it is characterized in that this image processing cards also comprises a holding circuit; be electrically connected between this processor and this connecting line, destroy in order to this digital signal of avoiding this processor to be received.
6. the image processing cards with digital input and output modules as claimed in claim 1 is characterized in that this digital signal is a switching signal, has a high levle or a low level.
7. the image processing cards with digital input and output modules as claimed in claim 1 is characterized in that this image processing cards also comprises one and expands subcard, is electrically connected between this connecting line and this external electronic, in order to adjust this digital signal.
8. the image processing cards with digital input and output modules as claimed in claim 7 is characterized in that this expansion subcard is in order to amplify this digital signal.
9 image processing cards with digital input and output modules as claimed in claim 7 is characterized in that this expansion subcard is according to this digital signal, produces a magnitude of voltage or a current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100696521A CN100442206C (en) | 2005-04-25 | 2005-04-25 | Image processing cards with digital input and output modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100696521A CN100442206C (en) | 2005-04-25 | 2005-04-25 | Image processing cards with digital input and output modules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854993A CN1854993A (en) | 2006-11-01 |
| CN100442206C true CN100442206C (en) | 2008-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100696521A Active CN100442206C (en) | 2005-04-25 | 2005-04-25 | Image processing cards with digital input and output modules |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020190937A1 (en) * | 2001-05-22 | 2002-12-19 | Song Hong Sung | Liquid crystal display and driving apparatus thereof |
| CN1445888A (en) * | 2002-03-20 | 2003-10-01 | 建碁股份有限公司 | Circuit board with protection function and method for protecting circuit |
| US6657623B1 (en) * | 1999-07-13 | 2003-12-02 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting a video signal |
| US6826628B2 (en) * | 2001-10-26 | 2004-11-30 | O2Micro International Limited | PCI-PCMCIA smart card reader |
-
2005
- 2005-04-25 CN CNB2005100696521A patent/CN100442206C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6657623B1 (en) * | 1999-07-13 | 2003-12-02 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting a video signal |
| US20020190937A1 (en) * | 2001-05-22 | 2002-12-19 | Song Hong Sung | Liquid crystal display and driving apparatus thereof |
| US6826628B2 (en) * | 2001-10-26 | 2004-11-30 | O2Micro International Limited | PCI-PCMCIA smart card reader |
| CN1445888A (en) * | 2002-03-20 | 2003-10-01 | 建碁股份有限公司 | Circuit board with protection function and method for protecting circuit |
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| Publication number | Publication date |
|---|---|
| CN1854993A (en) | 2006-11-01 |
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