Tactile Feedback Waveform Editing for Sensory Accuracy
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Solution Overview
Problem
It is difficult to accurately express one's own concept of tactile sensation through visual information, requiring editing of control signals to align them with the intended tactile sensation.
Innovation Solution
A tactile feedback apparatus with a display unit, storage unit, vibration actuator, and waveform editing unit that allows users to edit waveform information expressing tactile sensations by comparing visual and tactile experiences, using a wearable device with a vibration actuator and display unit to coordinate visual and tactile sensations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual information is used to express tactile sensation, then the tactile sensation can be shared and communicated, but the accuracy of expressing the tactile sensation concept deteriorates
Solution Approach 1:
The system provides real-time tactile feedback through the vibration actuator while the user edits the waveform information. The user can feel the actual tactile sensation produced by the waveform and compare it with their intended sensation, allowing iterative adjustment and refinement of the waveform parameters to achieve accurate expression of the tactile sensation concept.
Solution Approach 2:
The user directly interacts with the waveform information by manipulating visual elements on the display, and the system automatically translates these visual manipulations into waveform changes that produce corresponding tactile sensations. This self-service approach allows the user to intuitively adjust the tactile sensation parameters without requiring complex editing tools or expert knowledge.
2Measurement precision
If waveform information is edited to match imagined tactile sensation, then tactile sensation accuracy improves, but the time required for editing increases
Solution Approach 1:
The system replaces complex mechanical or manual editing processes with intuitive visual manipulation on a display screen. Users interact with waveform information by manipulating visual representations (such as adjusting parameters on a graph or manipulating visual elements), which the system automatically translates into precise waveform changes, eliminating the need for complex manual adjustment tools.
Solution Approach 2:
The system allows users to directly adjust waveform parameters (such as frequency, amplitude, duration, and pattern) through intuitive controls on the display. By changing these parameters visually and immediately experiencing the corresponding tactile sensation through the vibration actuator, users can rapidly iterate and refine the waveform to match their imagined tactile sensation, significantly reducing editing time compared to traditional methods.
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 intuitive editing of waveform information to match the user's imagined tactile sensation, effectively coordinating visual and tactile processing for accurate tactile feedback.
Implementation Method 1
a vibration actuator that provides a user with a tactile sensation based on vibration
Data Source
AI summary
A tactile feedback apparatus includes a display unit that displays a visual object, a storage unit that stores waveform information expressing a tactile sensation of the visual object, a vibration actuator that provides a user with a tactile sensation based on vibration, and a waveform editing unit that edits the waveform information. The vibration actuator vibrates based on the waveform information in a case in which a targeted area of the user's body for the tactile feedback by the vibration actuator comes into contact with the visual object. The waveform editing unit updates the waveform information stored in the storage unit based on an operation associated with completion of the editing.