Digital Image Combination in Projectors
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Solution Overview
Problem
Conventional projection systems are cumbersome and expensive, with fixed projection screens and complex sliding rail systems that make it difficult to easily move or reposition images for user convenience, especially in educational settings.
Innovation Solution
A projector system with an image processing circuit, processor circuit, and memory circuit that combines and adjusts images in various display modes, allowing for easy switching and positioning of display images on a projection target, including touch information, to reduce setup costs and enhance user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sliding rail system is used to combine display apparatus and conventional handwriting board, then image movement function is provided, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical sliding rail system with a digital image processing approach. The projector combines the first image (from host system) and second image (from handwriting board) through image processing circuits to generate a combined display image, eliminating the need for physical sliding rail mechanisms while achieving the same image movement and combination functionality.
Solution Approach 2:
The patent captures the image from the conventional handwriting board through an image sensor, creates a digital copy (second image), and processes it together with the first image from the host system. This digital copying approach replaces the need for physical mechanical combination systems.
2Adaptability or versatility
If a sliding rail system is used to combine display apparatus and conventional handwriting board, then image combination function is provided, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical sliding rail system with a digital image processing approach. The projector combines the first image (from host system) and second image (from handwriting board) through image processing circuits to generate a combined display image, eliminating the need for physical sliding rail mechanisms while achieving the same image movement and combination functionality.
Solution Approach 2:
The patent creates a multi-functional system where the projector can display the first image, second image, or their combination based on different operation modes. This universal approach allows the system to perform multiple functions (displaying digital content, handwriting board content, or their combination) without requiring separate mechanical systems for each function.
3Reliability
If conventional projection system with fixed projection screen is used, then stable projection is achieved, but ease of operation decreases
Solution Approach 1:
The patent introduces dynamic image positioning capability where the combined display image can be flexibly adjusted and repositioned on the projection screen through digital processing. The system allows dynamic switching between different display modes and image positions without requiring physical movement of the projection screen or complex mechanical systems.
Data Source
AI summary
A projector, a projection system and an image projection method are provided. The projector includes an image processing circuit, a processor circuit and a memory circuit. The image processing circuit is configured to adjust a first image. The processor circuit is electrically connected to the image processing circuit. The processor circuit is configured to combine the first image with a second image in a first display mode of the projector. The memory circuit is electrically connected to the processor circuit. The memory circuit is configured to store the second image. The projector projects a display image formed by combining the first image and the second image to a projection target.