I. Screen Monitoring
If you need to monitor the content displayed on a monitor-for example, in the field of industrial automation-you can use a high-definition VGA capture card or capture box to capture the monitor's display. This content can be transmitted in real time to the monitor or saved for later review.
II. Live Screen Streaming
A. Live-stream the screen during video conferences so that more people who cannot attend the meeting can watch;
B. Using a VGA capture card or capture box for screen live streaming produces much clearer video quality than other live streaming methods.
C. In the field of education, it can be used to live-stream the teacher's computer screen to facilitate multimedia instruction or remote teaching;
III. Handling Special Video Formats
Use a VGA capture card or capture box in conjunction with streaming media encoding software to capture and encode video in real time into streaming media formats, which can then be uploaded to a streaming media server for on-demand viewing. Some video files use proprietary formats defined by their developers, which cannot be directly processed by software from other companies-for example, educational courseware and 3D animation files. Some video files are too large to be easily transported, transmitted, or presented-such as 3D animation files. In such cases, the TC1000-VGA capture card or capture box, combined with streaming media encoding software, can be used to encode them into a much smaller streaming media format. Alternatively, the VGA capture card or capture box can be used to capture them as uncompressed AVI files for editing.
IV. Security X-ray machines, radar image signals, VDR recorders, medical X-ray machines, CT scanners, gastrointestinal X-ray machines, etc.
V. Image capture and processing from VGA-signal and RGB-signal output devices, such as VGA cameras and VGA camcorders.
All information processed by the graphics card is ultimately output to the monitor. The graphics card's output interface serves as the bridge between the computer and the monitor, responsible for sending the corresponding image signals to the monitor. Due to their design and manufacturing specifications, CRT monitors can only accept analog signal inputs, which requires the graphics card to output analog signals. The VGA (Video Graphics Array) port-also known as the D-Sub port-is the interface on the graphics card used for analog signal output. Although LCD monitors can directly receive digital signals, many low-end models still use VGA ports to ensure compatibility with graphics cards equipped with VGA ports.
Some graphics cards that lack a VGA port but feature a DVI (Digital Visual Interface) port can be connected to a VGA display using a simple adapter; graphics cards without a VGA port typically come with such an adapter included.
Many people believe that only HDMI ports can transmit high-definition signals, but this is a common misconception. VGA connections can also display 1080p images-and even higher resolutions-so using VGA to connect to a display for watching high-definition video is perfectly fine. Furthermore, although it is an analog interface, VGA breaks down the video signal into the three primary colors-R, G, and B-and the HV horizontal and vertical field signals for transmission, so signal loss during transmission is quite minimal.