Electronic Whiteboard Eraser with Color-Based Selective Content Removal
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Solution Overview
Problem
Existing erasing techniques for electronic whiteboards lack the ability to differentiate between high-priority and low-priority content, leading to the inadvertent erasure of important data.
Innovation Solution
An electronic device equipped with a motion detecting unit, proximity sensor, user interface, and processing unit that allows users to select specific colors for erasing or retaining content on a writing board, controlling a moveable cleaning surface to erase or retain content based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional eraser is used to erase content on an electronic whiteboard, then the erasing operation is simple and quick, but high-priority contents may be erased inadvertently causing loss of important data
Solution Approach 1:
The patent segments the content on the whiteboard by color, allowing users to select specific colors for erasing. The system divides the board into color-based regions and enables selective erasing of only the desired color content, preventing accidental deletion of high-priority information while maintaining ease of operation.
Solution Approach 2:
The patent applies local quality by making different parts of the whiteboard have different erasing properties based on color. Each color region can be independently targeted for erasing, allowing users to apply different operations to different areas of the board according to their priority and importance.
2Loss of information
If color-based selective erasing is implemented, then important data can be retained while erasing less important content, but the device complexity increases due to additional sensors and processing units
Solution Approach 1:
The patent makes the erasing device universal by enabling it to perform multiple functions: detecting content colors, receiving user selections for desired colors, controlling the cleaning surface to erase specific colors, and providing feedback. This multi-functionality consolidates several operations into a single device, reducing overall system complexity while achieving color-based selective erasing.
Solution Approach 2:
The system implements self-service by automatically detecting the colors present on the whiteboard and providing users with a simplified interface to select which colors to erase. The processing unit automatically matches the cleaning surface movement with the selected colors, reducing the need for complex manual control mechanisms.
3Adaptability or versatility
If the cleaning surface is made moveable to enable color-based erasing, then selective erasing capability is achieved, but the device complexity and control system requirements increase
Solution Approach 1:
The patent applies dynamics by making the cleaning surface movable and controllable according to user selections. The cleaning surface can be dynamically positioned and moved to erase specific color regions on the whiteboard, enabling adaptive and versatile erasing capabilities while using a relatively simple motion control mechanism.
Data Source
AI summary
The present disclosure relates to an electronic device for erasing contents on a writing board. The electronic device comprises a motion detecting unit for detecting movement of the electronic device from resting position which then transmits an activation signal to activate a processing unit and a proximity sensor. The proximity sensor identifies proximity of the electronic device with the writing board. The processing unit receives a signal from the proximity sensor when the electronic device is proximal to the writing board. Further, the processing unit receives selection of colours through user interface on the electronic device for identifying erasable or retainable contents on the writing board. The processing unit transmits a control signal to motion control system to control moveable cleaning surface of the electronic device to perform either pulling or pushing the moveable cleaning surface backward or forward respectively based on the selection of colours.