Multi-control Stylus with Lateral and Axial Switches
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Solution Overview
Problem
Styluses lack the multi-control functionality of computer mice, and existing attempts to enhance styluses with buttons or force sensors are either inconvenient to use or fail to replicate mouse functions effectively.
Innovation Solution
A stylus design incorporating lateral and axial switches, along with a force sensor, allowing for independent control signals to be sent to an electronic device, enabling functions like 'click to select' and 'hold to drag' through relative motion and force application, with haptic and audible feedback for user confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external buttons are added to the stylus housing, then control functionality is improved, but ease of operation deteriorates because users must change their grip to activate buttons
Solution Approach 1:
The patent introduces a new dimension of control by adding lateral (side-to-side) switching capability perpendicular to the traditional axial (push-in) direction. This allows button activation through lateral motion of the stylus tip against the surface, enabling users to maintain their natural grip while accessing multiple control functions through different directional pressures.
2Adaptability or versatility
If a single axial force sensor is added to the stylus, then control functionality is improved, but device complexity increases without duplicating computer mouse functions
Solution Approach 1:
The patent segments the force sensing capability into multiple independent sensors: axial force sensors for push-in detection and lateral force sensors for side-to-side detection. This segmentation allows each sensor type to handle specific directional inputs, collectively replicating the multi-button functionality of a computer mouse while maintaining manageable system complexity through modular sensor architecture.
3Adaptability or versatility
If lateral and axial switches with force sensors are integrated, then control inputs similar to computer mouse are achieved, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing a unified stylus system where lateral switches, axial switches, and force sensors work together to provide multiple control inputs. This universal design allows a single stylus device to replicate various computer mouse functions including click, drag, and context-menu operations through different combinations of lateral and axial motions, reducing the need for multiple separate devices.
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 the stylus to provide multiple control inputs similar to a computer mouse, enhancing usability and interaction with graphical user interfaces by allowing precise positional control and force-sensitive inputs.
Implementation Method 1
A lateral switch internal to the stylus body is responsive to relative lateral motion between the tip and the stylus body
Implementation Method 2
An axial switch internal to the stylus body is responsive to axial motion of the tip relative to the stylus body
Implementation Method 3
A force sensor internal to the stylus body is responsive to force applied to the tip
Data Source
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AI summary
The present disclosure provides for a stylus 100 having at least one switch 112 located within the stylus body 102 and activated by relative lateral motion 120 between the stylus tip 106 and the stylus body 102. Haptic or audible feedback may be provided to a user when a switch, or combination of switches, changes state. The stylus may also include an axial switch 114 and an axial force sensor 124.