FM Composite HD Video Link for Low-Latency Wireless Broadcast
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Solution Overview
Problem
Current wireless transmission technologies face limitations in transmitting high definition video signals in real-time due to latency and bandwidth constraints, particularly in aerial drone applications, where standard definition composite video signals or high definition digital video signals are used, introducing significant latency or failing to meet high definition requirements.
Innovation Solution
A system and method for frequency modulation of high definition composite video broadcast signals, comprising a transmitting unit with an image sensor, signal processor, and frequency modulator, and a receiving unit with a low noise amplifier and frequency demodulator, allowing for real-time transmission of high definition analog video without the need for digital compression/decompression, thereby reducing latency and omitting related hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high definition digital video signal is used for wireless transmission, then video quality is improved, but transmission latency increases due to compression/decompression requirements
Solution Approach 1:
The patent changes the signal format parameter from digital to analog composite video broadcast signal, eliminating the need for compression/decompression operations while maintaining high definition quality through frequency modulation transmission
Solution Approach 2:
The patent replaces the digital signal processing system (compression/decompression hardware) with an analog frequency modulation system, removing the mechanical processing steps that cause latency
2Loss of time
If standard definition composite video signal is used for wireless transmission, then transmission latency is reduced, but video quality deteriorates
Solution Approach 1:
The patent changes the signal definition parameter from standard definition to high definition by using frequency modulation with the composite video broadcast signal, maintaining high definition quality without requiring digital compression
3Measurement precision
If digital compression/decompression hardware is used, then high definition video transmission is enabled, but device complexity and power consumption increase
Solution Approach 1:
The patent extracts and removes the compression/decompression hardware from the transmission system by using analog frequency modulation, keeping only the essential modulation and demodulation components
Solution Approach 2:
The patent replaces complex digital processing hardware with simpler analog frequency modulation components, reducing device complexity and power consumption while achieving the same transmission goal
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 real-time high definition video transmission with minimal latency and power savings by eliminating the need for digital compression/decompression, achieving low-cost and efficient wireless transmission in bandwidth-limited environments.
Implementation Method 1
a frequency modulator for modulating the composite video broadcast signal to a first modulated signal
Implementation Method 2
a low noise amplifier for amplifying the first modulated signal to a second modulated signal with amplitude uniformity
Data Source
AI summary
The present invention provides a system for frequency modulation of high definition composite video broadcast signals in a wireless transmission environment and a method thereof, comprising: a transmitting unit and a receiving unit. An image sensor of the transmitting unit converts an image to a digital signal. A signal processor converts the digital signal to a composite video broadcast signal. A frequency modulator modulates the composite video broadcast signal to a first modulated signal. The receiving unit receives the first modulated signal. A low noise amplifier converts the first modulated signal to a second modulated signal. A frequency demodulator restores the second modulated signal to the composite video broadcast signal. After an image decoder decodes the composite video broadcast signal, the image decoder outputs a digital signal in a specific format.