Video Switching Device with Return Video Display Mode
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Solution Overview
Problem
Existing video switchers and viewfinders are not compatible across different camera manufacturers, limiting their ability to display return videos, and there is a need for an inexpensive video switcher system that can function as both a switcher and an adaptor for return video display.
Innovation Solution
A video switching device with two operation modes: switcher mode for switching between two video camera signals and return video display mode for displaying return videos without dedicated CCU, featuring a video switching unit, mode selection unit, and remote control integration for seamless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated viewfinder for each camera manufacturer is used, then the return video can be displayed on the viewfinder, but the compatibility with other manufacturers' cameras is poor and the device complexity increases
Solution Approach 1:
The video switching device is designed to function both as a video switcher and as an adaptor that outputs return video signals. The device can receive video signals from any camera manufacturer and selectively output either switched video or return video signals, making it universally compatible with different camera systems while maintaining reliable return video display capability.
2Reliability
If a separate monitor is used to display return video, then the return video can be displayed, but the device complexity and cost increase
Solution Approach 1:
The invention combines the video switcher function and the return video adaptor function into a single integrated device. The video switching device merges multiple functions (video switching, return video output, and camera control signal transmission) into one unit, eliminating the need for separate monitors or dedicated CCU equipment and reducing overall system complexity.
3Reliability
If expensive dedicated equipment is used for return video display, then the return video can be displayed reliably, but the system cost increases
Solution Approach 1:
The video switching device is designed to function both as a video switcher and as an adaptor that outputs return video signals. The device can receive video signals from any camera manufacturer and selectively output either switched video or return video signals, making it universally compatible with different camera systems while maintaining reliable return video display capability.
Solution Approach 2:
The video switching device itself provides the return video output function without requiring external dedicated equipment. The device uses its own resources (video signal processing capabilities and output interfaces) to generate and output return video signals, eliminating the need for separate expensive equipment and reducing overall system cost.
Data Source
AI summary
A video switching device is provided that has a function as a video switcher and a function as an adaptor to display a return video. According to the present invention, a video switching device is provided that includes: a first video signal input unit to receive input of a first video signal; a second video signal input unit to receive input of a second video signal; a video switching switch to generate a video switching signal; a video switching unit to switch an output video signal generated from the first and second video signals between a first output video signal and a second output video signal based on a state of the video switching signal; and a mode selection unit to select whether the video switching unit operates in a switcher mode or a return video display mode, wherein the video switching unit is configured to switch the output video signal between the first output video signal and the second output video signal every time the video switching switch is operated in the switcher mode and, in the return video display mode, configured to output the first output video signal as the output video signal while the video switching switch is not operated and to output the second output video signal as the output video signal while the video switching switch is operated.