Haptic Waveform Extraction via Basic Frequency and Envelope
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Solution Overview
Problem
Current haptic feedback systems face challenges in providing realistic tactile texture waveforms efficiently and cost-effectively, particularly in generating immersive physical feedback with high computational load.
Innovation Solution
A haptic waveform storage and generation system that includes a sensor to measure tactile texture signals, a waveform extraction unit to calculate basic frequency and extract envelopes, and a library storage unit to store and label haptic waveform information, allowing for the generation of tactile texture waveforms with reduced data size and computational load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If haptic feedback systems generate tactile texture waveforms using traditional methods, then realistic haptic feedback is achieved, but computational load increases and cost increases
Solution Approach 1:
The patent extracts only the essential features (basic frequency and envelope) from the original tactile texture signal, separating these key parameters from the complete signal data. This extraction approach maintains the core haptic characteristics while eliminating redundant information, thereby reducing computational load and storage requirements without sacrificing feedback realism
Solution Approach 2:
The patent creates simplified copies of haptic waveform information by representing complex tactile signals through basic frequency and envelope parameters. These parameter-based copies reproduce the essential haptic texture characteristics without requiring storage or processing of the full original signal, thus reducing computational complexity while maintaining feedback quality
2Reliability
If haptic waveform information is stored in detailed form, then high fidelity is achieved, but data size increases and storage cost increases
Solution Approach 1:
The patent extracts only the essential features (basic frequency and envelope) from the original tactile texture signal, separating these key parameters from the complete signal data. This extraction approach maintains the core haptic characteristics while eliminating redundant information, thereby reducing computational load and storage requirements without sacrificing feedback realism
Solution Approach 2:
The patent transforms the haptic waveform from a complex time-domain signal into a parameter-based representation using basic frequency and envelope characteristics. This parameter transformation reduces the data dimensionality while preserving the essential haptic texture information, achieving efficient storage with reduced data size
Data Source
AI summary
Provided is a haptic waveform storage system including a sensor configured to measure a target object to generate a sensing signal including tactile texture information, a waveform extraction unit configured to extract a basic frequency and an envelope from the sensing signal and generate haptic waveform information including information about the basic frequency and the envelope, and a library storage unit configured to store the haptic waveform information.