Optical Fiber Video Signal Phase Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing imaging systems using multi-core cables for video signal transmission face challenges such as complex and time-consuming installation, signal degradation over long distances, and limited flexibility due to analog signal transmission, making it difficult to maintain clear video display across distant monitors.
Innovation Solution
The use of an optical fiber cable with phase control and synchronization methods, including phase controllers and synchronization signal generators, ensures synchronized video signal transmission between camera devices and signal processors, eliminating phase differences and enabling high-quality digital signal transmission over long distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-core cable is used to transmit video signals, then the connection can be established, but the installation becomes complicated and time-consuming
Solution Approach 1:
The patent replaces the mechanical/electrical multi-core cable system with an optical fiber-based transmission system. The optical fiber cable simplifies the connection structure compared to traditional multi-core cables, reducing installation complexity while maintaining reliable video signal transmission through optical rather than electrical connections.
2Length of stationary object
If a multi-core cable is used for long-distance transmission, then the connection can be established, but signal degradation occurs
Solution Approach 1:
The patent substitutes electrical signal transmission through multi-core cables with optical signal transmission through fiber optic cables. Optical transmission suffers from minimal signal degradation over long distances compared to electrical signals, enabling reliable long-distance video transmission without the signal quality loss associated with traditional cable systems.
3Length of stationary object
If analog signals are transmitted over long distances, then the connection can be established, but the video becomes degraded and difficult to display clearly
Solution Approach 1:
The patent changes the fundamental parameter of signal transmission from analog electrical signals to digital optical signals. Digital signal transmission through optical fibers maintains signal integrity and quality over long distances, eliminating the degradation problem inherent in analog transmission while enabling clear video display even at remote locations.
4Reliability
If phase synchronization is implemented between camera device and signal processor, then phase differences are eliminated, but additional control components are required
Solution Approach 1:
The patent implements self-service phase synchronization where the camera device automatically adjusts its internal signal phase to match the synchronization signal received from the signal processor. The phase control unit in the camera device autonomously compares phases and makes adjustments without requiring complex external control systems, simplifying the overall synchronization architecture while ensuring reliable phase alignment.
Data Source
AI summary
An imaging apparatus includes a camera device, a signal processor that receives a video signal from the camera, and a connection cable connecting the camera device and the signal processor. The camera device includes a first phase controller that compares the phase of a synchronization signal transmitted from the signal processor with the phase of an internal signal generated by the camera device, and that synchronizes the phase of the internal signal with the phase of the synchronization signal, a video synchronization signal generator that generates a video synchronization signal for the video signal based on the internal signal, and a signal transmitter that transmits the video signal. The signal processor includes a second phase controller that compares the phase of the video synchronization signal with the phase of the synchronization signal, and that synchronizes the phase of the video synchronization signal with the phase of the synchronization signal.