Vibration Control System Frequency Domain Synthesis
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Solution Overview
Problem
Existing vibration control systems for game processing struggle to effectively synthesize and provide a balanced vibratory stimulus to users, as the combination of vibrations from multiple sources can exceed the maximum displacement of the vibrator, leading to an inability to express intended vibratory experiences.
Innovation Solution
A vibration control system that synthesizes vibration data from multiple sources using methods such as selection and addition schemes, allowing for the designation of vibration waveforms in both time and frequency domains, and correcting frequency dependency to ensure a consistent and intended sensory impulse is provided to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vibration data from multiple sources is combined to provide rich vibratory stimulus, then the vibratory experience becomes more expressive, but the combination exceeds the maximum displacement of the vibrator, leading to loss of intended vibratory expression
Solution Approach 1:
The patent changes the parameter representation from time domain to frequency domain, allowing vibration data to be processed and synthesized by combining frequency components rather than directly adding time-domain waveforms. This enables control of the combined vibration to stay within maximum displacement limits while maintaining expressive vibratory content through frequency-based synthesis.
2Adaptability or versatility
If vibration waveforms are synthesized from multiple sources, then the vibratory stimulus becomes more diverse, but the synthesis process becomes complex and difficult to control
Solution Approach 1:
The patent replaces direct mechanical addition of vibration waveforms (time domain synthesis) with frequency domain processing. By transforming vibration data to the frequency domain, the synthesis process becomes more manageable through spectral analysis and frequency component combination, reducing the complexity of controlling multiple vibration sources while maintaining waveform diversity.
Data Source
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AI summary
A vibration control system includes first vibration command generation means (1104) for generating first vibration data defined by a combination of a first frequency and a first amplitude, second vibration command generation means (1104) for generating second vibration data defined by a combination of a second frequency and a second amplitude, vibration data synthesis means (1105) for outputting third vibration data defined by a combination of a third frequency and a third amplitude when the first vibration data and the second vibration data are input, and vibration control means (1106) for causing a terminal to vibrate based on the third vibration data. The vibration data synthesis means includes first amplitude determination means for determining the third amplitude by adding the first amplitude and the second amplitude to each other and frequency determination means for determining a frequency within a range from the first frequency to the second frequency as the third frequency.