Tactile Signal Decoding Using Higher-Order Perception Compression
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Solution Overview
Problem
Tactile reproduction systems face increased data processing burdens and transmission delays as the number of regions for tactile stimulation increases, leading to inefficient data handling and potential discomfort for users due to the high data amount requirements of tactile signals.
Innovation Solution
A decoding apparatus that utilizes higher-order perception, such as phantom sensation and apparent movement, to compress tactile signal data, reducing the data amount while ensuring reproducibility by designating usage channels and adjusting block sizes, and using voice signals for tactile information reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the number of regions for tactile stimulation is increased, then the coverage and effectiveness of tactile feedback is improved, but the data amount and processing burden increase
Solution Approach 1:
The patent merges tactile signal processing across multiple regions by identifying and utilizing correlations between adjacent regions. When similar tactile patterns are detected in multiple regions, the system processes them as a unified pattern rather than independent signals, thereby reducing overall processing burden while maintaining comprehensive coverage.
Solution Approach 2:
The patent implements a universal tactile pattern library that serves multiple regions simultaneously. By creating region-agnostic tactile patterns that can be applied across different body areas, the system reduces the need for region-specific processing while maintaining effective tactile feedback coverage.
2Area of stationary object
If the number of regions for tactile stimulation is increased, then the coverage and effectiveness of tactile feedback is improved, but the transmission delay increases
Solution Approach 1:
The patent combines tactile signals from multiple regions into aggregated pattern data that can be transmitted more efficiently. By merging redundant information across regions and transmitting only essential pattern characteristics rather than complete regional signals, the system reduces transmission delay while maintaining multi-region coverage.
3Device complexity
If the data amount of tactile signal is reduced, then the processing burden and transmission delay are reduced, but the reproducibility of tactile sense may be compromised
Solution Approach 1:
The patent creates simplified copies of tactile patterns that capture essential characteristics without requiring complete original data. By identifying key features of tactile sensations and reproducing them through compressed representations, the system maintains perceptual fidelity while significantly reducing data requirements and processing burden.
Solution Approach 2:
The patent transforms tactile signal parameters from detailed continuous data to discrete categorical patterns. By converting complex tactile signals into standardized pattern classifications, the system reduces data dimensionality while preserving the essential perceptual qualities needed for accurate tactile reproduction.
Data Source
AI summary
A tactile reproduction system achieves a data amount reduction of a tactile signal while ensuring reproducibility of a tactile sense. A decoding apparatus includes a decoding unit configured to decode tactile coded data obtained by performing encoding of compressing an information amount, on a tactile signal using higher-order perception in a tactile sense. Therefore, a data amount reduction of a tactile signal can be performed in accordance with a tactile characteristic of a human.