Tactile Pattern Music Generator Using Fabric Matrix Actuators
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Solution Overview
Problem
Current devices for music playback lack the ability to convert electronically stored music into tactile outputs that can be sensed or felt, providing limited tactile sensations for the listener.
Innovation Solution
A tactile pattern player comprising a matrix of actuators that convert electronic data into electrical impulses, producing patterned tactile sensations when integrated into clothing, allowing users to feel music through retractable protrusions, contractions, electric stimuli, or temperature changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional audio playback devices are used, then music can be heard through speakers, but tactile sensations are limited or indirect
Solution Approach 1:
The device divides the fabric into a matrix of discrete actuator locations, with each actuator independently controllable to produce tactile events at specific positions. This segmentation allows precise tactile representation of audio information across multiple spatial locations simultaneously.
Solution Approach 2:
The invention adds a spatial dimension to audio playback by distributing tactile actuators across a two-dimensional fabric matrix. Instead of single-point vibration, the system creates tactile patterns across the surface area of the fabric, adding spatial localization to the temporal audio signal.
2Loss of information
If a matrix of tactile actuators is integrated into fabric, then tactile representation of audio data is achieved, but device complexity increases
Solution Approach 1:
The fabric integrates multiple functions into a single wearable item: audio playback, tactile feedback generation, and spatial pattern creation. The same fabric structure serves as both the substrate for actuators and the medium for tactile delivery, eliminating separate components.
Solution Approach 2:
The system combines the audio playback function with tactile feedback delivery in a single integrated fabric device. The actuators are embedded within the fabric structure itself, merging the transducer array with the wearable substrate into one unified system.
3Ease of operation
If retractable protrusions are used for tactile output, then tactile events are produced, but manufacturing complexity increases
Solution Approach 1:
The patent replaces complex mechanical protrusion mechanisms with simpler electroactive materials that change shape in response to electrical signals. This substitution eliminates the need for moving mechanical parts while achieving the same tactile output effect.
Solution Approach 2:
The system changes the physical state or shape of actuator materials through electrical stimulation rather than mechanical actuation. Electroactive polymers or shape memory materials change their dimensional parameters (expansion, contraction, bending) in response to electrical fields, simplifying the actuation mechanism.
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
Enables users to perceive audio data as tactile events on their body, enhancing the music listening experience by providing a new form of tactile feedback that mimics musical notes and vocals.
Implementation Method 1
The discernible tactile sensations or events may, for example, be alternately created by retractable protrusions, contractible matrix cells, electric or temperature stimuli
Implementation Method 2
The discernible tactile sensations or events may, for example, be alternately created by retractable protrusions, contractible matrix cells, electric or temperature stimuli
Data Source
AI summary
A device that produces patterned tactile sensations or events discernible to human touch from micro-actuators housed in a fabric, or other pliable material, where such actuated sensations or events are discernible by a user donning the fabric. The device is configured to convert electronically stored music or audio data into a sequence of patterned tactile sensations or events in a matrix across the fabric, providing a tactile representation of the music or audio data to the user. The discernible tactile sensations or events may alternately comprise retractable physical features, electric stimuli, and/or combinations of these.