Strain-Based Sensor Configuration for Mobile Press Differentiation
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Solution Overview
Problem
Mobile communication devices face challenges in differentiating between intended and unintended presses due to seamless side walls made of metal, which affect the accuracy and reliability of strength and position determination, especially with added sliding functions.
Innovation Solution
Incorporating a cut slot and additional sensors in the mid-frame of the mobile communication device, parallel to the press region, to detect side wall deformations caused by external forces, improving the differentiation between intended and unintended presses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seamless side wall structure is used to improve water resistance, then the device achieves better water resistance, but the sensor cannot differentiate between intended and unintended presses
Solution Approach 1:
The patent introduces a cut slot that divides the seamless side wall structure into segments. This cut slot allows the sensor to detect deformation differences between intended presses (within the press region) and unintended presses (outside the press region), thereby resolving the contradiction between maintaining water resistance through seamless structure and achieving accurate press differentiation.
2Measurement precision
If additional sensors are added in the cut slot, then the accuracy of strength and position determination is improved, but the device complexity increases
Solution Approach 1:
The cut slot acts as an intermediary structure that enables the additional sensors to be integrated into the existing seamless side wall design. The cut slot provides a pathway for the sensors while maintaining the overall structural integrity and water resistance, thus allowing improved measurement precision without proportionally increasing device complexity.
3Measurement precision
If the cut slot extends longer than the press region, then the sensor can differentiate unintended presses more effectively, but the manufacturing complexity increases
Solution Approach 1:
The cut slot is designed to extend beyond the press region boundaries to create distinct detection zones. This segmentation approach allows the sensor to differentiate between presses within the intended press region and those outside it. The extended length provides additional detection capability while maintaining manufacturability through standard cutting processes.
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
Enhances the accuracy and reliability of strength and position determination by differentiating intended from unintended presses, thereby optimizing sensor configuration.
Implementation Method 1
strain-based sensor configuration... multiple sensors provided inside the cut slot. The multiple sensors are configured to detect a side wall deformation caused by an external force
Data Source
AI summary
Strain-based sensor configuration in a mobile communication device is provided. In embodiments disclosed herein, a cut slot and an additional sensor(s) are added in a mid-frame of the mobile communication device, in addition to an existing sensor(s) in the mid-frame. The additional sensor(s) can help differentiate an unintended press from an intended press to thereby improve accuracy and reliability in determining strength and position of the press.