Haptic Feedback System for Smooth Surface Interface Simulation
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Solution Overview
Problem
Conventional electronic devices with minimalistic user interfaces lack tactile and kinesthetic feedback, leading to user engagement issues and interaction breakdowns, such as difficulty in locating controls and differentiating between them.
Innovation Solution
The use of a tactile sensor system that combines touch tracking, force sensing, and haptic feedback to simulate physical interfaces, such as push-button and slider interfaces, on a smooth surface, providing users with tactile and kinesthetic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If physical interfaces (buttons, edges, indents, textures, protrusions, depressions) are removed to maintain a smooth surface, then aesthetics and manufacturing simplicity are improved, but tactile and kinesthetic feedback are lost, leading to degraded user experience and interaction breakdowns
Solution Approach 1:
The patent replaces mechanical physical interfaces (buttons, edges, indents, textures, protrusions, depressions) with an electronic haptic feedback system. The smooth surface maintains aesthetics while haptic actuators generate simulated tactile feedback through controlled vibrations and forces, substituting mechanical feedback with electronically controlled haptic effects.
Solution Approach 2:
The patent introduces haptic feedback as an intermediary between the user and the device interface. The haptic system acts as a mediator that translates touch interactions into tactile sensations, allowing users to perceive virtual interface elements through haptic feedback without requiring physical structural features.
2Ease of manufacture
If physical interfaces are removed to reduce manufacturing complexity and cost, then ease of manufacture is improved, but user engagement and interaction reliability deteriorate due to lack of tactile feedback
Solution Approach 1:
The patent replaces complex mechanical interface structures with a simplified smooth surface and electronic haptic feedback system. This substitution reduces manufacturing complexity while maintaining interaction reliability through programmable haptic effects that provide consistent tactile feedback for different interface elements.
Solution Approach 2:
The patent uses parameter changes in haptic feedback (amplitude, frequency, duration, pattern) to differentiate between various interface elements and states. By dynamically adjusting haptic parameters, the system provides reliable tactile distinction between buttons, sliders, and other controls without requiring physical structural differentiation.
3Device complexity
If a smooth surface interface is used, then device simplicity and aesthetics are improved, but user ability to locate and differentiate controls deteriorates
Solution Approach 1:
The patent uses haptic feedback patterns as a sensory signature for different interface elements, analogous to color coding. Each control element has distinctive haptic characteristics (vibration patterns, resistance, texture simulation) that allow users to locate and differentiate controls through tactile perception rather than visual or structural cues.
Solution Approach 2:
The haptic feedback system serves as an intermediary that provides spatial and tactile information about control locations and identities. The haptic mediator communicates interface element properties to the user's tactile sense, enabling detection and differentiation of controls on a smooth surface without visual or structural markers.
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
This approach enhances user experience by allowing users to interact with simulated physical interfaces that provide necessary feedback, improving engagement and reducing interaction breakdowns.
Implementation Method 1
a haptic feedback device to generate vibrations
Data Source
AI summary
Simulation of a physical interface utilizing touch tracking, force sensing, and haptic feedback is presented herein. A system tracks, via a touch sensing device of a tactile sensor of the system, a movement of a finger across the tactile sensor; in response to a location of the movement being determined to correspond to an interactive surface of the tactile sensor, the system generates, at the location, a first haptic feedback representing a defined type of simulated physical interface; based on the defined type of simulated physical interface, the system detects a force that has been applied to the tactile sensor; and in response to the force being determined to satisfy a defined force condition representing that an action is to be initiated, the system generates, via the interactive surface, a second haptic feedback representing that the action has been initiated by the system.