Dp to hdmi mcu driving audio and video line

By combining an MCU controller and a power pump, the high cost and complex structure of existing DP to HDMI solutions are solved, resulting in a low-cost and simplified DP to HDMI audio and video cable that supports high-resolution video signal conversion.

CN224305815UActive Publication Date: 2026-05-29SHENZHEN EAST TOPTECH ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN EAST TOPTECH ELECTRONICS TECH
Filing Date
2025-06-18
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing DP to HDMI solutions, dedicated protocol conversion chips are expensive and have complex hardware designs, making it difficult to achieve low cost and simplified structure.

Method used

A combination of MCU controller and power pump is adopted. The MCU controller converts the LVDS signal of the DP interface into a TMBS bit stream, and the power pump steps down the 5V voltage to 3.3V for power supply, which simplifies the power supply design and realizes signal pass-through interconnection.

Benefits of technology

It effectively reduces costs to 20% of dedicated chips, eliminates the need for high-speed signal processing circuits, supports high-resolution video signal conversion, is suitable for short-distance applications, has a simplified structure, and offers high flexibility in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to video signal conversion technical field, especially a kind of DP turns MCU drive audio-video line of HDMI, including MCU controller, power pump, DP interface and HDMI interface, the power pump, DP interface and HDMI interface are connected with MCU controller respectively, the DP interface and HDMI interface are connected with power pump respectively, the DP high-speed signal of DP interface and the HDMI high-speed signal of HDMI interface straight-through interconnection;The model of MCU controller is 4414EC_SOT23-6, for converting the LVDS signal of DP interface into TMBS bitstream;The model of power pump is 4004_SOT23-6.Compared with prior art, the DP turns MCU drive audio-video line of HDMI of the utility model can effectively reduce cost, without high-speed signal processing circuit, suitable for short distance application, simplify structure, and high flexibility of use.
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