Display Connector Mixed Signal Processing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display devices face installation challenges due to short signal line transmission distances, requiring multiple connections and wiring modifications, especially in outdoor and high-altitude areas, and have high content update and maintenance difficulties due to reliance on memory cards and RS232/485 interfaces.
Innovation Solution
A connector for display devices that processes mixed signals to separate video and power signals, using a signal processor with DC isolation, high pass filtering, and demodulation, and outputs these signals through LVDS or HDMI interfaces, reducing the need for multiple connections and enabling longer signal transmission distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing signal lines with high data transmission rates are used, then video signal quality is improved, but transmission distance is limited and installation becomes difficult
Solution Approach 1:
The patent combines power transmission and video signal transmission into a single cable system. The cable includes both power lines and signal lines integrated together, allowing simultaneous transmission of electrical power and high-quality video signals over extended distances, thereby resolving the contradiction between maintaining signal quality and extending transmission distance.
Solution Approach 2:
The cable system is designed to perform multiple functions: it can transmit power, transmit video signals, and potentially transmit control signals all through the same physical medium. This multi-functional design eliminates the need for separate power cables and signal cables, extending installation reach while maintaining video quality.
2Reliability
If display device requires power supply socket and signal lines, then power and video signals can be provided, but wiring reconstruction is needed and installation becomes inconvenient
Solution Approach 1:
The patent merges power supply connection and video signal connection into a single integrated cable assembly. This eliminates the need for separate power sockets and signal connections, allowing installation in locations without existing electrical infrastructure and greatly simplifying the installation process while maintaining reliable power and signal transmission.
Solution Approach 2:
The system is segmented into modular components that can be independently configured. The cable assembly can be customized with different connector types and configurations to match specific installation environments, whether indoor or outdoor, while maintaining reliable connections for both power and signals.
3Reliability
If display device uses memory card and RS232/485 interface for content storage and control, then content can be stored locally, but content replacement and update becomes troublesome with high failure rate
Solution Approach 1:
The integrated cable system provides multiple communication interfaces beyond just power and video transmission. It includes data communication capabilities that enable remote content management, allowing content to be updated and managed remotely through the same cable connection used for power and video, thereby simplifying maintenance and reducing failure rates.
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
Simplifies installation and maintenance by reducing connection wires and extending signal line transmission distances, improving operational efficiency and reducing construction difficulties while allowing for easier content updates and maintenance.
Implementation Method 1
The signal processor is configured to process a first signal in the mixed signal received via the input cable interface to obtain a video signal for display by the display device
Implementation Method 2
The signal processor comprises a DC isolation circuit, a high pass filter and a demodulator. The high pass filter has a low-impedance conduction characteristic for the frequency of the modulated data signal and is configured to perform high pass filtering on the separated modulated data signal
Implementation Method 3
The demodulator is configured to demodulate the high-pass filtered modulated data signal
Implementation Method 4
The signal separator is configured to separate a second signal from the mixed signal received via the input cable interface and to generate a DC voltage based on the second signal
Implementation Method 5
the signal separator comprises a low pass filter for separating a DC component from the mixed signal to supply a DC voltage to the display device via the power output interface
Implementation Method 6
The video signal output interface comprises a low voltage differential signaling (LVDS) interface which is configured to output the fixed-format video signal directly to a driving circuit of the display device
Implementation Method 7
The video signal output interface comprises a high definition multimedia interface (HDMI) interface which is configured to output the variable-format video signal to the display device
Data Source
AI summary
Embodiments of the present disclosure provide a connector for a display device and a relevant display device. The connector includes an input cable interface for connecting an input cable to receive an input mixed signal, a signal processor for processing a first signal in the mixed signal received via the input cable interface to obtain a video signal for display, a signal separator for separating a second signal from the mixed signal and to generate a DC voltage based on the second signal, a video signal output interface for connecting a display interface of the display device to output the video signal, and a power output interface for connecting a power supply interface of the display device to output the DC voltage generated by the signal separator to the display device. Externally-connection interfaces and connection wires are reduced by using one cable to transmit signals of multiple properties.