MIPI Data Cable Impedance Matching Long-Distance Transmission
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Solution Overview
Problem
Existing electronic systems that transmit MIPI signals require additional components like image processors and transmitters in cameras and receivers in devices, leading to increased costs and limitations in long-distance signal transmission due to signal attenuation.
Innovation Solution
A data cable that performs impedance matching and shielded grounding processing on MIPI differential signals, allowing for direct transmission between electronic devices without the need for signal conversion, thereby reducing system costs and enabling long-distance MIPI signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If HDMI signal conversion is used to achieve long-distance transmission, then transmission distance is improved, but device complexity and cost increase due to additional image processor and transmitter components
Solution Approach 1:
The patent extracts the signal conversion function from the camera device and relocates it to the cable transmission medium. By integrating impedance matching and signal conditioning circuits directly into the cable, the system eliminates the need for complex image processors and transmitters in the camera, thereby reducing device complexity while maintaining long-distance transmission capability.
Solution Approach 2:
The cable acts as an intermediary component that performs impedance matching and signal conditioning between the camera and display device. This mediator approach allows MIPI signals to be transmitted over long distances without requiring the camera to contain complex conversion hardware, thus resolving the contradiction between transmission distance and device complexity.
2Length of stationary object
If HDMI signal conversion is used to achieve long-distance transmission, then transmission distance is improved, but system cost increases due to additional components
Solution Approach 1:
The patent removes the expensive image processor and transmitter components from the camera system and replaces them with simpler impedance matching circuits integrated into the cable. This extraction of functionality reduces the bill of materials and manufacturing cost while achieving the same long-distance transmission goal.
Solution Approach 2:
The patent employs cost-effective impedance matching circuits and shielding structures within the cable assembly rather than expensive active components in the camera. This approach uses simpler, cheaper components to achieve reliable long-distance MIPI signal transmission, thereby reducing overall system cost.
3Device complexity
If MIPI signals are transmitted directly without conversion, then device complexity is reduced, but transmission distance is limited due to signal attenuation
Solution Approach 1:
The cable serves as an active intermediary that compensates for signal attenuation through integrated impedance matching circuits and shielding. This allows MIPI signals to be transmitted directly from the camera without conversion, maintaining low device complexity while extending transmission distance beyond the typical limitation through the cable's signal conditioning capabilities.
Solution Approach 2:
The patent changes the electrical parameters of the transmission medium by implementing impedance matching circuits and shielding within the cable. This modifies the signal transmission characteristics to reduce attenuation and maintain signal integrity over longer distances, enabling direct MIPI transmission without conversion while extending the usable transmission distance.
4Reliability
If additional shielding and impedance matching are implemented in the cable, then signal transmission quality is improved, but cable complexity increases
Solution Approach 1:
The cable is designed to perform multiple functions simultaneously: signal transmission, impedance matching, and electromagnetic shielding. By integrating these functions into a single cable assembly rather than separate components, the solution improves signal transmission quality while minimizing the increase in overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables cost-effective, long-distance transmission of MIPI signals by eliminating the need for additional conversion components and addressing signal attenuation issues, ensuring accurate and reliable signal transmission over distances greater than 1 meter.
Implementation Method 1
the data cable is configured to receive the at least one pair of MIPI differential signals from the first electronic device, and perform impedance matching and shielded grounding processing on the at least one pair of MIPI differential signals
Implementation Method 2
the data cable is configured to receive the at least one pair of MIPI differential signals from the first electronic device, and perform impedance matching and shielded grounding processing on the at least one pair of MIPI differential signals
Data Source
AI summary
A data cable, electronic system and method for transmitting MIPI signals are provided. The electronic system includes a first electronic device configured to generate at least one pair of MIPI (Mobile Industry Processor Interface) differential signals, and a data cable and a second electronic device connected to the first electronic device via the data cable. The data cable is configured to receive the at least one pair of MIPI differential signals from the first electronic device, and perform impedance matching and shielded grounding processing on the at least one pair of MIPI differential signals, and transmit the processed at least one pair of MIPI differential signals to the second electronic device.