Image Processing Device Signal Bouncing Prevention
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Solution Overview
Problem
Current image processing devices are limited in generating composite images from arbitrary combinations of image signals and are prone to signal bouncing due to their hardware design, which restricts operations like picture-in-picture, picture-by-picture, and picture-on-picture, and creates a risk of high-frequency signal mismatch.
Innovation Solution
An image processing device with a receiving module, interface conversion module, selecting module, and controller that converts and overlays image signals to generate composite images, preventing signal bouncing by using independent transmission paths and allowing arbitrary signal combinations, and outputs selected images for stitching across multiple projectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If switches are used to select image signals in current hardware design, then image signal selection is achieved, but signal bouncing risk increases and high frequency signal matching deteriorates
Solution Approach 1:
The patent divides the image signal transmission path into multiple independent paths, with each path having dedicated selection circuitry. This segmentation eliminates the need for switches that cause signal bouncing, as each signal path is independently routed and selected without sharing common transmission lines that would cause interference.
Solution Approach 2:
The patent introduces an intermediary selection mechanism that operates at the signal source level rather than using switches in the transmission path. The selection is performed by dedicated selection circuits that directly route signals without introducing the bouncing effect that would occur with traditional switch-based selection in the transmission path.
2Productivity
If traditional switch-based image processing is used, then basic picture operations are achieved, but arbitrary combination of image signals cannot be generated
Solution Approach 1:
The patent creates a universal image processing system where multiple image signals can be arbitrarily combined through independent selection paths. Each signal path can be independently selected and combined with any other path, providing multi-functional capability that supports various picture operations (PiP, PbP, PoP) and arbitrary signal combinations without being limited by fixed switch configurations.
Solution Approach 2:
The patent implements dynamic signal selection where the combination of image signals can be changed arbitrarily through independent selection circuits. Unlike fixed switch-based systems, this dynamic approach allows real-time reconfiguration of which signals are combined and how, enabling flexible adaptation to different operation modes and arbitrary signal combinations.
3Device complexity
If T or Y branch topology is used for signal transmission, then hardware design is simplified, but high frequency signal matching deteriorates
Solution Approach 1:
The patent segments the signal transmission into multiple independent paths rather than using shared T or Y branch topologies. Each path has its own dedicated transmission line and selection circuitry, which eliminates the impedance matching issues and high frequency signal degradation that occur in shared branch topologies, while maintaining hardware simplicity through modular design.
Data Source
AI summary
An image processing device and an image processing method are provided. The image processing device comprises a receiving module, a interface conversion module, a selecting module, and a controller. The receiving module is configured to receive image signals. The interface conversion module is configured to convert the image signals into converted image signals with a target image interface. The selecting module is configured to generate at least two selected image signals from the converted image signals according to the first selecting signal. The controller is configured to provide the first selecting signal to selecting module. The image processing device generates the composite image by overlaying the at least two selected image signals.