Electronic Eraser with Separable Pyramid Corner for Pressure-Sensitive Erasing
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Solution Overview
Problem
Existing electronic erasers for tablet PCs struggle to accurately erase handwriting information in a precise and controlled manner, particularly in narrow ranges, and fail to mimic the functionality of traditional pencil erasers, which allow for varying erasure intensity based on applied force.
Innovation Solution
An electronic eraser with a separable corner member having a square pyramid shape, integrated with a housing, that includes a pressure detector to sense applied force and send corresponding erasing signals, allowing for precise control over the erasure area and intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an independent electronic eraser is used to erase handwriting information, then the eraser can be dedicated to erasing function, but it is difficult to erase handwriting information in a very narrow range
Solution Approach 1:
The electronic eraser is segmented into a housing and a separable corner member. The corner member can be detached from the housing, allowing users to select only the corner member for erasing in narrow ranges, while the housing can be used for other purposes or stored separately.
Solution Approach 2:
The corner member is extracted as a separable component from the housing. This allows the corner member to be used independently for precise erasing in narrow ranges, while the housing can be set aside or used for other functions.
2Measurement precision
If a corner part of the electronic eraser is used to erase handwriting information, then erasing in narrow range is enabled, but the corner part is worn out and erasing processing cannot always be performed with the same feeling
Solution Approach 1:
The corner member is designed to be separable and replaceable. When the corner member becomes worn out, it can be discarded and a new corner member can be attached to the housing, restoring the original erasing performance without needing to replace the entire electronic eraser.
3Adaptability or versatility
If pressure detection is added to the electronic eraser, then erasing intensity can be controlled, but device complexity increases
Solution Approach 1:
The pressure detector serves multiple functions: it detects the pressing force applied by the user and also generates erasing signals based on the detected pressure. This multi-functionality reduces the need for separate components and simplifies the overall device structure.
Solution Approach 2:
The pressure detection function and erasing signal generation are merged into a single integrated system. The pressure detector both senses the user's pressing force and directly controls the erasing operation, eliminating the need for separate control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise and intuitive erasure of handwriting on electronic devices, mimicking traditional pencil erasers by adjusting the erasure area and intensity based on user-applied pressure, ensuring consistent performance and reducing wear on the eraser.
Implementation Method 1
an electronic pen unit that includes a core body and a pressure detector that, in operation, detects a pressure applied to the core body
Data Source
AI summary
Disclosed here is an electronic eraser includes an electronic pen unit that includes a core body and a pressure detector that, in operation, detects a pressure applied to the core body and that sends an erasing signal including pressure information detected by the pressure detector, a housing having a substantially rectangular parallelepiped shape, and a corner member that is integral with the housing, is separable from the housing, and has a square pyramid shape having a triangular side surface configuring a part of a bottom surface of the housing. The core body is inserted into a portion of a central axis coincident with a perpendicular line drawn from a vertex of the corner member to a bottom surface of the corner member, and the electronic pen unit is obliquely arranged in the housing, so that the corner member is slidable and movable in a direction of the central axis.