System and method for dynamically simulating VGA (Video Graphic Array) signals
A video graphics array and dynamic simulation technology, applied in the computer field, can solve problems such as driver instability, achieve short loading time, reduce the chance of impact, and improve quality
Active Publication Date: 2014-12-31
EVOC SMART IOT TECH CO LTD
View PDF2 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Based on this, it is necessary to provide a method that can improve the output image quality and reduce the impact probability of the analog load on the VGA driver module in view of the problem that the image quality of the output in the existing analog load mode is reduced and the driver is unstable due to the long-term analog load. A system for dynamically simulating video graphics array signals
[0006] In addition, it is also necessary to provide a method that can improve the output image quality and reduce the impact probability of the simulated load on the VGA driver module in view of the problem that the image quality of the output in the existing simulated load mode is degraded and the driver is unstable due to the simulated load for a long time. Method for dynamically simulating video graphics array signals
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] The technical solution of the system and method for dynamically simulating video graphic array signals will be described in detail below in conjunction with specific embodiments and accompanying drawings, so as to make it more clear.
[0039] like figure 1 Shown is a schematic structural diagram of a system for dynamically simulating video graphics array signals in an embodiment. The system for dynamically simulating video graphics array signals includes an analog load 102 , a controllable switch circuit 104 , a video graphics array interface 106 , a signal control interface 108 , a software control module 110 and a video graphics array driver module 112 .
[0040] Among them, one end of the analog load 102 is grounded, and the other end is electrically connected to the three primary color pins (R1, G2, B3) of the VGA interface 106 through the controllable switch circuit 104; the software control module 110 is connected to the VGA drive module 112, and the signal The c...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a system and a method for dynamically simulating VGA (Video Graphic Array) signals. The system comprises a VGA interface, a controllable switching circuit, a simulation load, a software control module, a signal control interface and a VGA driving module, wherein the software control module is used for sending an output signal instruction to the VGA driving module and judging whether the signal is normally output or not; when the signal is normally output, enabling the software control module to output a first control instruction to the controllable switching circuit through the signal control interface so as to disconnect the simulation load; when the signal is not normally output, enabling the software control module to output a second control instruction to the controllable switching circuit so as to connect the simulation load. The simulation load can be connected without using pins of the VGA interface, so that the output image quality is improved; furthermore, by virtue of dynamically simulating the load, so that the load loading time is quite short, and the possibility that the simulation load influences the VGA driving module is reduced.
Description
technical field [0001] The invention relates to the computer field, in particular to a system and method for dynamically simulating video graphics array signals. Background technique [0002] VGA (Video Graphics Array, Video Graphics Array) is a video transmission standard introduced by IBM together with the PS / 2 machine in 1987. It has the advantages of high resolution, fast display speed, and rich colors, and has been widely used in the field of color displays. application. The VGA interface is the most widely used video display output interface in the field of personal computers. It adopts an asymmetrically distributed 15-pin connection mode and has a total of 15 pins. The traditional VGA interface has no signal output when the interface is set to no-load (that is, no display device is connected). At this time, the display is connected again, which often causes the image signal to be output not in time or not to output the image signal. For this reason, an analog load is...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06F3/14
Inventor 张宁杨宏伟
Owner EVOC SMART IOT TECH CO LTD