Force Wave Selection for Consistent User-Specific Haptic Feedback
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Solution Overview
Problem
Existing vibration devices struggle to provide a force sense that suits individual user preferences, as perception of vibration intensity varies among users, leading to inconsistent and uncomfortable experiences.
Innovation Solution
A force wave determination device and method that includes a candidate information acquisition unit, modulation unit, vibration generation unit, and determination unit to generate and select force waves tailored to user preferences, ensuring consistent and comfortable haptic experiences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the intensity of vibration is changed to adapt to different users, then the vibration strength can be adjusted, but the perceived force sense remains inconsistent across users due to individual perception differences
Solution Approach 1:
The system dynamically adjusts vibration parameters by switching between multiple pre-defined force wave patterns (sine wave, triangle wave, sawtooth wave, square wave) based on user feedback. This dynamic adaptation allows the vibration device to evolve from static intensity adjustment to dynamic waveform selection, resolving the contradiction between adaptability and consistency.
Solution Approach 2:
The invention changes multiple vibration parameters simultaneously including waveform type, frequency, and intensity. By modulating these parameters together through envelope functions and allowing user selection among different force wave candidates, the system achieves both individualized adaptation and consistent perceptual quality.
2Adaptability or versatility
If multiple vibration parameters are adjusted to suit user preferences, then user satisfaction improves, but the system complexity increases
Solution Approach 1:
The vibration control is segmented into distinct force wave patterns (sine, triangle, sawtooth, square waves) with different characteristics. Each pattern represents a discrete segment of the vibration parameter space, making the complex adjustment process manageable through pattern selection rather than continuous parameter tuning.
Solution Approach 2:
The system incorporates user feedback through selection operations where users choose their preferred vibration pattern from multiple candidates. This feedback mechanism guides the determination unit to select the most suitable force wave, simplifying the complexity by using user preference as the control signal rather than requiring complex automated adjustment algorithms.
Data Source
AI summary
Disclosed herein are systems and methods for force wave determination. A method includes receiving both first candidate information indicating a first candidate force wave as a candidate of a force wave and second candidate information indicating a second candidate force wave as a different candidate of the force wave; modulating the first candidate force wave and the second candidate force wave by the envelope based on the first candidate information and the second candidate information, respectively, to generate a first waveform signal and a second waveform signal; configuring the target object to generate a first candidate vibration based on the first waveform signal and a second candidate vibration based on the second waveform signal, respectively; receiving a selection of one of the first candidate vibration and the second candidate vibration; and determining the force wave based on the selection.