Force Sensing Mouse with Movable Top Portion
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Solution Overview
Problem
Conventional input devices, such as mice, can only detect whether a force exceeding a threshold has been applied, failing to determine the actual amount of force applied, limiting their input range and functionality.
Innovation Solution
A force sensing input device with at least one force sensor and a top portion movably connected to a bottom portion, capable of exerting pressure on the sensor to obtain force data, allowing the determination of force amounts within a range, and optionally using touch-sensitive surfaces or multiple sensors to scale the data based on applied location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional binary selection elements are used, then the device structure remains simple, but the input range is limited to binary states only
Solution Approach 1:
The patent replaces conventional mechanical binary switches with force sensing technology that uses strain gauges and electronic sensors to detect continuous force variations. This substitution enables the device to capture analog force data across a spectrum rather than binary states, dramatically expanding input range while maintaining a relatively simple physical structure.
Solution Approach 2:
The invention changes the detection parameter from binary on/off states to continuous force magnitude measurements. By measuring the degree of force applied rather than merely detecting threshold exceedance, the system transforms the input parameter space from discrete to continuous, enabling nuanced control and broader input versatility.
2Measurement precision
If force sensing technology is implemented, then the measurement precision of force amount is improved, but the device complexity increases
Solution Approach 1:
The force sensing system is divided into modular components: strain gauge elements attached to mechanical levers, signal conditioning circuits, and processing software. This segmentation allows each component to be optimized independently and facilitates easier maintenance and calibration, managing complexity through functional decomposition.
Solution Approach 2:
The patent introduces intermediary elements such as mechanical levers that amplify small forces and strain gauges that transduce mechanical deformation into electrical signals. These intermediaries enable precise force measurement without requiring direct complex sensor integration, simplifying the overall system architecture while maintaining measurement accuracy.
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 a broader range of inputs by accurately measuring force amounts, enhancing user interaction with electronic devices through precise force detection and feedback mechanisms.
Implementation Method 1
The force sensor may include one or more cantilever beams. Such cantilever beams may include one or more strain gauges.
Data Source
AI summary
A force sensing input device (such as a force sensing mouse) includes at least one force sensor and at least one top portion movably connected to at least one bottom portion. When a force is applied to the top portion, the top portion exerts pressure on the force sensor. The force sensor obtains force data based upon the pressure. The amount of force applied to the top portion, within a range of force amounts, is determined from at least the force data. In this way, a broader range of inputs may be receivable from the force sensing input device as compared to input devices that merely detect whether or not a button or similar element has been pushed.