Dynamic Icon Positioning in Interactive Whiteboard Presentation Systems
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Solution Overview
Problem
Conventional presentation systems face challenges in dynamically displaying icons and messages on interactive whiteboards, leading to reduced usability due to fixed icon positions, superimposition of icons on presentation images, and inadequate consideration for message display, which hinders smooth presentation progress and participant engagement.
Innovation Solution
A presentation system that includes an interactive whiteboard with a display device capable of generating and synthesizing icon and message images without superimposition, using an OSD display control section and synthesis processing to control the display of icons and messages based on system control information, allowing for flexible positioning and enhancement of presentation functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If icons are printed directly on the interactive white board or displayed using a fixed display application, then the interface for PC operation is provided, but the display position of icons cannot be changed and new functions cannot be added
Solution Approach 1:
The patent implements dynamic icon display by allowing icons to be positioned at arbitrary locations on the interactive white board rather than fixed positions. The system enables real-time modification of icon positions and allows dynamic addition/removal of icons during presentation, making the interface adaptable to different presentation needs without requiring system reconfiguration.
Solution Approach 2:
The patent creates a universal icon display system that can accommodate multiple functions through a unified interface. The same icon display mechanism supports various PC operations, presentation controls, and interactive functions, allowing new functions to be added by simply adding new icons without changing the underlying system architecture.
2Ease of operation
If icons are displayed on the interactive white board, then PC operation interface is provided, but icons are superimposed on the descriptive display image and prevent visual recognition
Solution Approach 1:
The patent segments the display area into distinct regions: the main descriptive display image area and the icon display area. Icons are positioned in specific zones that do not overlap with the primary content display, ensuring that the presentation image remains clearly visible while icons remain accessible for interaction.
Solution Approach 2:
The patent applies different display qualities to different regions of the white board. The main display area optimizes for image quality and visual clarity, while icon regions are positioned and styled to be distinct and easily distinguishable, allowing each region to serve its specific function without interfering with the other.
3Adaptability or versatility
If the presenter must move from standing position to operate icons, then icon functionality is available, but presentation progress is hindered
Solution Approach 1:
The patent repositions icons into the vertical dimension by displaying them along the side edges of the white board rather than only in the horizontal center area. This allows the presenter to access icons from the standing position at the side of the board, eliminating the need to move to different locations and maintaining presentation flow.
4Measurement precision
If position coordinate detection sensors are arranged with high density, then position detection precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements position coordinate detection sensors with moderate density that provides sufficient precision for icon interaction. Rather than maximizing sensor density throughout the entire board, the system uses strategically positioned sensors that cover the critical interaction zones where icons are displayed, achieving adequate precision without excessive complexity.
Data Source
AI summary
A display device according synthesizes icons and messages with a portion where no descriptive display image is displayed by OSD for display. Icon functions are set by a PC so that the setting of the operation of the PC and the display device, and the setting of an external device can be conducted. The number of lines of the message to be displayed is determined according to distortion correction at the case of oblique projection to correct position coordinates detected by a camera. In a presentation system including an interactive white board device, the display device (for example, a liquid crystal projector), and the PC, the display of the icons are improved to extend the functions, and the display of the messages at the case of oblique projection, and a position detection precision on a screen by the camera incorporated into the display device are improved.


