This character overlay device can superimpose and display date, time, graphics, and Chinese/English character information on standard HDMI video signals. It is primarily used in TV surveillance scenarios to overlay Chinese characters and other information onto video signals. After the video signal is overlaid with Chinese characters, the monitor can display information about the surveillance location.

1. HDMI characters are processed fully digitally and without compression.

2. The HDMI character overlay includes a distribution function that splits one 4K signal into multiple outputs, supporting 4K30Hz; built-in cable auto-equalizer and clock retiming function.

3. The HDMI character overlay provides comprehensive power status, video link status, input/output, and other effective indicator functions, making installation and debugging very convenient for users.

4. 4K30Hz input, 4K30Hz distributed output,

5. Supports power-off pass-through function.

6. Built-in GB2312 font library, supports 35 font sizes, and allows mixed display of Chinese, English, and numbers. (Includes font sizes from 24 to 160)

7. HDMI signals support 1280*768, 1280*720, 1280*1024, 1366*768, 1600*1024, 1680*1050, 1920*1080,

(4K*2K 1600*1200, 1920*1200, 1920*1440, 2048*1536, 2560*1440, 2560*1600, 3840*2160)

8. Each channel's font can be independently set with or without borders. Effects such as adding or not adding background colors are supported.

9. Supports multiple fonts and uses special algorithms to ensure smooth, anti-aliased fonts.

10. Each channel has an independent built-in rechargeable battery, allowing real-time display of date and time. Power loss does not affect clock operation.

11. Built-in large-capacity DDR ensures that set information is not lost during power outages.

12. Each channel includes 2 video distribution outputs. Each channel can be individually set to display up to 8 lines with a total of 200 mixed Chinese and English characters.

13. Characters are in 32-bit true color. The foreground and background colors of each channel can be set independently, supporting the full color gamut.

14. Plug-in card structure automatically detects the status of each board, and allows custom naming and information for each board.

15. Allows independent modification and downloading of character data for any single or multiple boards.

16. Supports one-click screen clearing function, with the option to clear one or multiple channels without affecting others.

17. Supports device data reading and modification functions.

18. Supports coordinate adjustment for positioning on each channel.

19. Supports editing board name function.

20. Supports online detection and alert for missing boards.

21. Supports 6 date formats.

22. Allows arbitrary adjustment of row spacing and column spacing.

23. Supports left alignment, right alignment, and right-edge alignment, with definable alignment columns.

24. Supports quick editing and modification of multiple character channels.

25. Supports NTP automatic time calibration function, allowing real-time correction by setting up an NTP server connection.

26. Supports functions such as saving, saving as, and loading configurations.

27. Multi-level tree-structured quick function settings, allowing grouping and categorization of multiple devices for quick selection and control of different devices in the system.

28. RS232 and Ethernet control, allowing simultaneous control of multiple devices with separate addresses.

29. HDMI character overlay uses a fully industrial-grade wide temperature range design, industrial-grade chips, and full surface-mount technology.

30. Wide voltage power supply supports 110-260V.

31. Uses a 3U all-aluminum plug-in card chassis.

32. Optional redundant power supply for primary and backup.