Stylus Integrating Touch and Compressive Force Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing styluses and tactile input devices limit users to specific input options and require adjusting their grip to operate additional input components, restricting natural input capabilities.
Innovation Solution
Integration of both touch input and compressive force sensors into a stylus, allowing for simultaneous detection of touch and force inputs at the user's natural grip location, enabling expanded input capabilities without the need for additional devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple input components are added to expand input capabilities, then input versatility is improved, but device complexity and grip adjustment requirements increase
Solution Approach 1:
The patent combines touch input sensors and compressive force sensors into a single integrated sensor assembly within the stylus housing. This merging of multiple sensing functions into one unified component structure reduces overall device complexity while maintaining expanded input capabilities through multiple sensor types working together.
Solution Approach 2:
The stylus housing serves multiple functions: it provides structural support, houses the sensor assembly, and acts as the interaction surface for both touch and compressive force inputs. This multi-functionality eliminates the need for separate components for each input type, reducing complexity while maintaining versatility.
2Adaptability or versatility
If additional input components are added to expand input options, then input versatility is improved, but ease of operation deteriorates due to grip adjustment requirements
Solution Approach 1:
By merging touch and compressive force sensors into the same spatial location within the stylus, the patent enables both input types to be activated simultaneously without requiring the user to shift grip position. This eliminates the need for grip adjustment while providing expanded input options.
Solution Approach 2:
The stylus design allows the single grip position to naturally serve multiple input functions. The user's natural grip simultaneously activates both touch and compressive force sensors, making the system self-sufficient without requiring additional grip adjustments for different input types.
3Ease of operation
If touch and force sensors are integrated at the grip location, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The stylus housing is designed as a universal structure that integrates both sensor types within its walls. This multi-functional housing design provides built-in positioning features and mounting structures that simplify sensor alignment during assembly, reducing the impact of manufacturing precision requirements.
Solution Approach 2:
The sensor assembly is segmented into modular components that can be independently positioned and calibrated within the housing. This segmentation allows for adjustable positioning mechanisms that can compensate for manufacturing tolerances, enabling accurate sensor placement without requiring extremely tight manufacturing precision.
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 users to provide a range of inputs, including taps, slides, and compressive gestures, at the natural grip location, enhancing interaction with electronic devices by interpreting these inputs as specific commands or settings changes.
Implementation Method 1
the touch sensor may include multiple capacitive touch sensor elements distributed within the housing
Implementation Method 2
the force sensor may include multiple capacitive force sensor elements distributed within the housing
Data Source
AI summary
A stylus or other tactile-based input device can receive different types of tactile input from a user. The tactile input sensing functions can be performed by a touch input sensor, such as a capacitive sensing device, and a compressive force sensor, such as a capacitive gap sensor. A touch input sensor can be integrated into an input device in a low profile form and overlap the compressive force sensor so that both touch input and compressive force input can be detected in the same regions of the stylus. Both types of tactile input can be received at the user's natural grip location.