Projector Drawing via Tablet Coordinate Input
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display systems cannot perform drawing on a projection screen using a portable terminal, limiting interactive capabilities and distance from the projector.
Innovation Solution
An image display device with a video signal acquisition section, coordinate data acquisition section, and image data acquisition section that allows coordinate input from a touch panel or indicating body to draw on an image and output the modified image data to an electronic apparatus, enabling drawing on a projection screen from a distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a portable terminal is used to transmit projection data to a projector wirelessly, then the distance limitation is reduced, but the ability to perform drawing on the projection screen is not achieved
Solution Approach 1:
The portable terminal is made to perform multiple functions: it serves both as a wireless projection data transmitter and as a drawing input device. The terminal's touch panel or connected indicating body detects drawing operations, and the terminal processes and transmits both the projection data and the drawing coordinate data to the projector, enabling the terminal to control both image projection and drawing annotations.
Solution Approach 2:
The functions of projection data transmission and drawing input are merged into a single integrated system. The portable terminal combines the projection control functionality with the drawing annotation functionality, allowing the user to perform both operations through one device rather than requiring separate devices for each function.
2Ease of operation
If an indicating body is used for pseudo-writing on a projection surface, then drawing interaction is enabled, but the user must be close to the projector
Solution Approach 1:
The portable terminal acts as an intermediary device between the user and the projector. Instead of directly using an indicating body to interact with the projection surface, the user interacts with the terminal's touch panel, which then processes the input and transmits the coordinate data to the projector. This intermediary function allows the user to perform drawing operations from a distance while maintaining ease of interaction.
Solution Approach 2:
The terminal creates a digital copy of the drawing operations performed on its touch panel and transmits this copied data to the projector. The touch panel captures the user's drawing input, processes it into coordinate data, and sends it to the projector, which then displays the drawing annotations on the projection surface, effectively copying the interaction from the terminal to the projection display.
Data Source
AI summary
A projector capable of outputting an image to an electronic apparatus is provided, wherein the image is obtained by drawing a picture corresponding to a coordinate input from an electronic apparatus having a touch panel, or a coordinate input from an indicating body on an input image. The projector includes a video signal acquisition section adapted to obtain a first image, a first coordinate data acquisition section adapted to obtain first coordinate data from a tablet terminal having a touch panel, an image data acquisition section adapted to obtain image data representing a second image obtained by drawing a picture, which corresponds to the first coordinate data, on the first image, and an image data output section adapted to output the image data, which is obtained by the image data acquisition section, to the tablet terminal.