Pressure Gesture Input via Differential Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pressure sensing technologies in touch screens and devices lack efficient methods to differentiate and respond to multiple pressure inputs simultaneously, limiting the precision and functionality of gesture-based interactions.
Innovation Solution
A system that includes a pressure sensor and a controller capable of detecting both lower and higher pressure inputs simultaneously, calculating pressure differentials, and moving objects on a display based on these differentials, allowing for precise control of cursor movement, virtual object manipulation, and parameter adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensors detect only single pressure levels, then the device complexity is low, but the measurement precision and gesture differentiation capability are limited
Solution Approach 1:
The pressure sensing system is segmented into multiple independent pressure sensors arranged in an array, where each sensor detects pressure at a specific location. This segmentation enables the system to differentiate between multiple simultaneous pressure inputs by identifying their distinct spatial positions, thereby improving measurement precision without requiring a single complex sensor
Solution Approach 2:
The patent transitions from detecting only pressure magnitude to detecting pressure inputs across multiple spatial dimensions. By arranging pressure sensors in a two-dimensional array and utilizing the spatial coordinates (x, y positions) of pressure inputs, the system adds spatial dimensionality to the detection capability, enabling differentiation of multiple simultaneous presses through their positional information
2Adaptability or versatility
If the system responds to multiple pressure inputs simultaneously, then the gesture functionality is enhanced, but the difficulty of detecting and measuring increases
Solution Approach 1:
The pressure sensor array segments the detection task across multiple sensors, with each sensor independently detecting pressure at its location. This segmentation simplifies the measurement of multiple simultaneous inputs by distributing detection across independent sensor elements rather than requiring a single complex sensor to resolve all inputs
Solution Approach 2:
The system implements feedback by continuously monitoring pressure inputs across the sensor array and using the spatial pattern of detected pressures to identify and differentiate gesture types. The controller processes the feedback from multiple sensors simultaneously, comparing pressure magnitudes and positions to determine gesture intent, thereby enhancing adaptability while managing detection complexity through systematic feedback processing
Data Source
AI summary
A device may include a pressure sensor; a user interface including an input surface opposite to an underside of the user interface, where the underside is positioned near the pressure sensor; a controller; memory in communication with the controller and comprising programmed instructions that, when executed, cause the controller to detect a lower pressure input, simultaneously detect a higher pressure input, calculate a pressure differential between the lower pressure input and the higher pressure input, and move an object depicted in a display in communication with the controller based on the pressure differential.