1. Video Broadcasting
Through multimedia video control technology and VGA synchronization technology, various forms of video information sources can be easily introduced into the computer network system, such as broadcast television and satellite television signals, camera video signals, VCD video signals, computer animation information, etc., thus achieving the following functions: Supports VGA display, displaying various computer information, graphics, and images. Supports various input methods; supports various standards such as PAL and NTSC. Real-time display of color video images, enabling live broadcasting. Rebroadcasts broadcast television, satellite television, and cable television signals. Real-time playback of video signals from television, cameras, and DVDs (VCR, VCD, DVD, LD). Has the function of simultaneously playing images and text with different aspect ratios.
2. Computer Broadcasting
Graphic and text special effects display function: Has the function of editing, scaling, scrolling, and animates graphics and text. Displays various computer information, graphics, images, and 2D/3D computer animations with superimposed text. The broadcast system is equipped with multimedia software, which can flexibly input and broadcast various information. Multiple Chinese fonts and styles are available, and it also supports input of English, Spanish, French, German, Greek, Russian, Japanese, and other languages. Multiple broadcast modes are available, such as single/multi-line panning, single/multi-line up/down panning, left/right dragging, up/down dragging, rotation, and stepless zooming. Notifications, announcements, and news can be edited and played instantly, with multiple font options available.
3. Network Functionality: Equipped with a standard network interface, it can connect to other standard networks (information query systems, municipal publicity network systems, etc.). It collects real-time data from various databases for remote network control. It can access the Internet through the network system and has an audio interface for connecting audio devices to achieve audio-visual synchronization.
4. Screen Controller: The screen controller controls the display effects of its corresponding display screen. It can automatically run a continuously looping program, retrieving relevant display data based on a given program schedule, or it can be manually intervened to produce the display effects on the screen. Pixels on the screen and corresponding pixels on the screen controller's display area are directly mapped.
The screen controller allows manual adjustment of the display brightness and selection of grayscale non-linear correction data suitable for the current environment. It can also automatically adjust the display brightness and select different grayscale non-linear correction data based on ambient light levels via a network system. The screen controller can also adjust image contrast, chroma, etc. The display controller transmits the information to be displayed to the video processing and control unit for video processing.
5. Video Processing and Control Unit
The video processing and control unit performs image processing on the display data. This processing includes: second-level grayscale non-linear correction, which can be adjusted automatically or manually; automatic or manual stepless brightness adjustment; a grayscale control system that can control the display to show 24-bit data (8 bits per primary color), i.e., 256 grayscale levels for each primary color; image noise reduction processing to ensure a cleaner and smoother image; image enhancement technology; image edge enhancement technology; motion compensation technology; and chroma adjustment function.
6. Visual Processing
In the system, the brightness of each primary color in each module can be adjusted individually, color balance can be adjusted, mosaic effects are largely eliminated, all modules and display modules have good brightness consistency, and there is no visual difference in monochrome display. The video processing and control unit transmits the processed display information to the communication module for long-distance transmission to the display screen.
Communication Module The communication module ensures the accurate and error-free long-distance transmission of the screen controller's display content to the display screen. The communication module encodes and decodes the transmitted information, performing long-distance transmission and reception data processing. The communication module then transmits the display information to the data distribution and scanning unit.
