Position-Based Display Settings for Multi-User Image Discrimination
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Solution Overview
Problem
Existing image display systems, such as interactive whiteboards, face limitations in versatility and convenience when discriminating between images drawn by multiple users, particularly due to the need for unique ID information in input devices and restricted drawing areas.
Innovation Solution
An image display system that uses a detecting device to determine the position of input devices on a display screen and a display control device to display images based on settings defined by multiple reference points, allowing different display modes without the need for unique ID information, enabling flexible area usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If unique ID information is assigned to input devices to identify users, then user discrimination capability is improved, but device complexity and versatility are worsened
Solution Approach 1:
The patent extracts the user identification function from the input device hardware itself and relocates it to the software/control system level. Instead of embedding unique IDs in physical devices, the system determines user identity based on drawing position data processed by the control device, thereby simplifying input devices while maintaining identification capability
Solution Approach 2:
The patent introduces a position detection mechanism as an intermediary between the input device and user identification. The detecting device captures drawing positions, and the display control device uses these positions to infer user identity and apply appropriate display settings, serving as a mediator that enables user discrimination without requiring complex input devices
2Measurement precision
If the display screen is divided into fixed areas for different users, then user discrimination capability is improved, but ease of operation is worsened
Solution Approach 1:
The patent transforms the static, fixed area division into a dynamic system where display settings are determined by the actual drawing position. The display control device dynamically selects appropriate settings based on where the drawing occurs on the screen, allowing users to draw anywhere while still enabling user discrimination through position-based settings
Solution Approach 2:
The patent applies different display settings to different local areas of the display screen based on where drawings occur. Instead of assigning fixed areas to users, the system applies quality differences (display settings) locally to regions where drawings are made, enabling user discrimination while maintaining operational flexibility
Data Source
AI summary
An image display system includes: a display device; a detecting device for detecting a position pointed by an input device, on a display screen of the display device; and a display control device that, in accordance with a drawing on the display screen using the input device, causes the display device to display an image corresponding to the drawing in conformity with a setting corresponding to the position on the display screen at which the drawing has been started. The settings are different from each other depending on the areas on the display screen defined by multiple reference points provided thereon.