Tactile Processing Device for Discrete Sensation Reproduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies fail to accurately represent and reproduce the discrete tactile sensations a person experiences over time, as they combine various feels into a single tactile feature quantity vector, leading to excessive information and loss of important tactile details.
Innovation Solution
A tactile processor that includes a movement measuring section, physical measuring section, and physical-psychological transformation section to generate a tactile feature quantity based on the measured physical properties and hand movement, allowing for adaptive sensing and display of tactile sensations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If various tactile feels are combined into a single tactile feature quantity vector, then comprehensive tactile information is captured, but information redundancy increases and important tactile details are lost
Solution Approach 1:
The patent segments the tactile feature quantity vector into multiple discrete tactile sensation components corresponding to different hand movement states. Instead of treating tactile feedback as a single aggregated vector, the system divides it into distinct sensation types (e.g., pressure, texture, temperature) that are processed and transmitted separately, thereby reducing redundancy while preserving critical tactile details.
Solution Approach 2:
The patent extracts only the minimum required tactile information necessary to reproduce the essential tactile sensation. By identifying and extracting key tactile features from the full tactile feature quantity vector, the system transmits only the most important tactile data, eliminating excessive information while maintaining accurate tactile reproduction.
2Reliability
If discrete tactile sensations over time are accurately represented, then tactile realism is improved, but processing complexity increases
Solution Approach 1:
The patent implements a dynamic tactile processing system that adapts to different hand movement states in real-time. The system dynamically adjusts which tactile sensation components are processed and transmitted based on the current movement state, allowing accurate representation of discrete tactile sensations over time while managing processing complexity through state-dependent optimization.
3Productivity
If minimum required tactile information is processed, then processing efficiency is improved, but actuator control precision may be reduced
Solution Approach 1:
The patent changes the parameter representation of tactile information by transforming the tactile feature quantity vector into discrete tactile sensation components. This parameter transformation allows the system to process minimum required tactile information efficiently while maintaining the precision needed for accurate tactile reproduction through optimized parameter encoding and transmission.
Data Source
AI summary
The present invention provides a technique for sensing and reproducing various feels, which a person gets discretely over a period of time, by time sequential sensing.A tactile processor includes: a movement measuring section for determining a status of contact between a person and an object; a physical measuring section for measuring a physical property value of the object; and a physical-psychological transformation section for generating a tactile feature quantity based on the physical property value that has been measured by the physical measuring section and on the weight of the physical property of an arbitrary object. The weight is variable according a status of contact between the person and the arbitrary object and is calculated based on not only a physical property value representing the status of contact between the person and the arbitrary object but also a tactile feature quantity representing a feel that the person gets when touching the arbitrary object.