Projection Apparatus Independent Graphic Editing
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Solution Overview
Problem
Conventional projection apparatuses face difficulties in editing graphics when multiple graphics formed using different pointers overlap, as they lack the ability to independently edit or distinguish between graphics created with different pointers.
Innovation Solution
A projection apparatus equipped with a control unit, detection unit, and processing unit that allows for the independent editing of graphics formed using different pointers, enabling individual or batch editing of graphics by distinguishing between pointers based on their emission patterns or shapes, and switching between operation modes for precise editing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple graphics are projected in separate regions for different pointers, then graphics formed with different pointers can be distinguished, but it becomes difficult to edit a desired graphic in a region where multiple graphics overlap
Solution Approach 1:
The patent divides the projection surface into multiple independent drawing areas, each associated with a specific pointer. This segmentation allows graphics formed by different pointers to be spatially separated and independently edited, resolving the contradiction between distinguishability and editability by providing both separate regions for distinction and individual editing capability for each region
Solution Approach 2:
The patent introduces a control unit that acts as an intermediary between the pointers and the projection surface. This control unit manages multiple drawing areas and coordinates the operations of different pointers, enabling independent editing of graphics in each drawing area while maintaining overall system coordination
2Quantity of substance
If graphics are allowed to overlap on the projection surface, then more information can be displayed, but editing becomes difficult when multiple graphics gather in the same region
Solution Approach 1:
By segmenting the projection surface into multiple drawing areas and assigning each pointer to a specific drawing area, the patent enables information from multiple pointers to be displayed simultaneously without overlapping confusion. Each drawing area can be independently edited, maintaining ease of operation even when multiple graphics are displayed
Solution Approach 2:
The patent resolves the two-dimensional overlap problem by introducing a third dimension - the drawing area assignment dimension. Each pointer is assigned to a specific drawing area, creating a spatial organization that prevents overlapping confusion while maintaining the ability to display multiple graphics
Data Source
AI summary
A projection apparatus according to the present invention, includes at least one memory and at least one processor which function as: a control unit configured to control to project an image on a projection surface; a detection unit configured to detect an operation performed on the projection surface using a pointer; and a processing unit configured to perform generation and editing of a graphic in response to the operation, wherein the processing unit is able to edit a first graphic formed using a first pointer and a second graphic formed using a second pointer independently of each other.