Haptic Signal Conversion Using Device-Independent Intermediate Representation
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Solution Overview
Problem
Haptic presentation technologies are often device-dependent, requiring creators to account for device characteristics, leading to increased workload and potential deviation from intended haptic expressions.
Innovation Solution
A conversion device and method that converts haptic signals into an intermediate representation using parameters independent of the output device, allowing for efficient data storage and transmission, and a decoding device that generates optimized haptic signals based on device characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If haptic signals are created considering device characteristics, then the haptic expression accurately reflects the creator's intention, but the work load on the creator increases
Solution Approach 1:
The patent introduces an intermediate representation signal as a mediator between the creator's haptic signal and the actual device output. The conversion device automatically translates the creator's intent (intermediate representation) into device-specific parameters, eliminating the need for creators to manually account for device characteristics while ensuring accurate haptic expression.
Solution Approach 2:
The patent replaces the manual process of adapting haptic signals to device characteristics with an automated conversion system. The conversion device uses algorithms to automatically adjust signal parameters based on device characteristics, substituting the creator's manual work with computational processing.
2Manufacturing precision
If haptic signals are device-specific, then the haptic output matches the intended expression, but the data efficiency and adaptability decrease
Solution Approach 1:
The patent creates a universal intermediate representation signal that can be applied across multiple different haptic devices. This device-independent representation serves as a universal format that can be converted to various device-specific formats, enabling the same haptic expression to work on different hardware platforms.
Solution Approach 2:
The intermediate representation acts as a universal intermediary format that bridges different device ecosystems. Instead of creating separate device-specific signals for each platform, the patent uses this common intermediate format as a mediator that can be converted to any target device's specific parameters.
3Reliability
If haptic signals are converted to device-specific parameters, then the output matches device capabilities, but the data storage and transmission efficiency decrease
Solution Approach 1:
The patent extracts the essential haptic intent from the original device-specific signal and represents it in a compressed intermediate format. By taking out only the necessary information (attack, harmonic component, noise component ratios) and representing it parameterically, the system reduces data size while maintaining the ability to accurately reproduce haptic effects on target devices.
Data Source
AI summary
A conversion device (100) according to one aspect of the present disclosure includes: an acquisition unit (131) that acquires a conversion source signal to be a source of a haptic signal; and a conversion unit (132) that converts the conversion source signal acquired by the acquisition unit into an intermediate representation signal represented by at least one parameter. For example, the conversion unit separates the conversion source signal into elements constituting the conversion source signal, and converts the separated signal into the intermediate representation signal.