Network Video Transmitter and Receiver with Auto-Adjustable Power
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Solution Overview
Problem
Traditional video display systems face limitations due to short cable lengths for high-quality video signals, requiring multiple cables and impractical installation of power outlets, especially when the video source and display are separated by distance or in environments where electrical installation is costly or unsafe.
Innovation Solution
A network video transmitter and receiver system that uses a single Ethernet or optical cable to transmit video, audio, and control signals, with integrated power capabilities, allowing for remote power management and auto-adjustable voltage to safely power displays over long distances without the need for separate power supplies at the display location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional video cables (DisplayPort, HDMI, Thunderbolt, USB-C) are used to transmit high-quality video signals, then video quality (resolution, refresh-rate, color depth) is improved, but cable length becomes limited to only a few meters
Solution Approach 1:
The patent introduces network cables (Cat5e, Cat6, or optical fiber) as an intermediary transmission medium. Instead of using traditional video cables directly, the system encodes video signals into network protocol packets and transmits them through the network cable infrastructure, which supports much longer transmission distances while maintaining video quality.
Solution Approach 2:
The patent replaces the direct electrical connection mechanism of traditional video cables with a network-based transmission system. Video signals are converted into network packets and transmitted through network infrastructure, substituting the mechanical cable-to-cable connection with a protocol-based communication system that enables longer reach.
2Adaptability or versatility
If displays are installed in locations far from power outlets (walls, poles, remote areas), then installation flexibility is improved, but the cost and complexity of electrical installation increases
Solution Approach 1:
The patent merges power transmission and data transmission into a single network cable connection. By integrating Power over Ethernet (POE) capability, the system combines the functions of video signal transmission and electrical power delivery into one cable, eliminating the need for separate power outlets and simplifying installation.
Solution Approach 2:
The network cable in the patent serves multiple functions simultaneously: it transmits video data, carries electrical power for the display, and can potentially handle control signals. This multi-functionality allows the display to be powered and operated from locations without traditional electrical infrastructure.
3Adaptability or versatility
If multiple cables are used for video, power, and control connections, then functional completeness is improved, but installation complexity and cost increase
Solution Approach 1:
The patent consolidates multiple separate connections (video cable, power cable, control cables) into a single network cable. The network cable carries all necessary signals and power through protocol encapsulation and POE technology, reducing the number of physical connections from multiple cables to just one.
Solution Approach 2:
The network cable is designed to handle multiple functions: video data transmission, electrical power delivery, and control signal communication. This universal capability allows a single cable type to replace the traditional multi-cable setup requiring different cable types for different functions.
4Ease of operation
If Power over Ethernet (POE) is implemented to power displays remotely, then installation ease is improved, but power transmission distance and safety become concerns
Solution Approach 1:
The patent implements automatic voltage detection and adjustment mechanisms that monitor the electrical parameters of the connected display and dynamically adjust the power transmission characteristics. This ensures safe operation by adapting the power delivery to match the specific requirements and tolerances of the connected device.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor the electrical connection status, voltage levels, and power consumption of the display. Based on this feedback, the system automatically adjusts power delivery parameters or detects connection issues, ensuring safe and reliable operation throughout the power transmission process.
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
Enables efficient, cost-effective, and safe installation of video displays by using a single cable for both data and power, allowing for flexible placement of video sources relative to displays, while ensuring reliable operation and safety across various environments.
Implementation Method 1
transmit power between the network video transmitter and the network video receiver, and the network cable has power conductors capable of carrying the power
Implementation Method 2
a sensing circuit, powered from the standby power and connected to the power conductors of the network cable, wherein when the sensing circuit senses one or more voltage pulses across the network cable, the sensing circuit enables full power of the host computing device
Implementation Method 3
a power connector being connected to a power supply of a host computing device, wherein the power supply is configured to convert an alternating current (AC) power to standby power and normal operating power
Data Source
AI summary
A display system includes a network video transmitter with a video input, being placed in a minimalist chassis system, and communicatively connected to a power supply of the minimalist chassis system located in a secure area (SA). A network video receiver with a video output is located in a public area (PA), and communicatively connected to a display device. A network cable connects the network video transmitter to the network video receiver. The network cable transmits the video signal from the network video transmitter to the network video receiver and transmits power between the network video transmitter and the network video receiver, and the network cable has power conductors capable of carrying the power. The power supply is configured to provide power to both the network video transmitter and the network video receiver, and no power supply is required in the PA.