Synchronizing Vibration and Sound Signals for Tactile Feedback
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Solution Overview
Problem
Current technologies require significant time and effort to adjust parameters like amplitude and phase for generating a vibration signal that matches a desired tactile feedback, especially when synchronized with sound signals, to create a realistic sensation in devices like game controllers, which can be cumbersome and time-consuming.
Innovation Solution
An information processing apparatus that acquires and synchronizes vibration and sound signals from real objects, allowing for easy recording and association of these signals to enhance tactile feedback, including a signal acquisition unit, a control unit for synchronization, and a recording unit to store the synchronized signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a vibration signal is generated by applying signal processing to a reference signal, then a tactile feedback can be produced, but it requires significant time and effort to adjust parameters like amplitude and phase to match the desired tactile sensation
Solution Approach 1:
The patent applies preliminary action by pre-recording actual vibration signals and corresponding sound signals from real objects before use. Instead of generating vibration signals through complex signal processing during the feedback process, the system captures and stores authentic vibration data in advance, which can be directly reused when tactile feedback is needed, eliminating the time-consuming parameter adjustment process.
Solution Approach 2:
The patent uses copying by recording and storing actual vibration signals from real objects, creating accurate copies of the original tactile sensations. These copied vibration signals are then associated with corresponding sound signals and can be directly applied for tactile feedback, avoiding the need to generate new signals through parameter adjustment of reference signals.
2Reliability
If a vibration signal is generated based on a reference signal, then tactile feedback can be produced, but extensive parameter adjustments are needed to synchronize the vibration signal output timing with the sound signal output timing
Solution Approach 1:
The patent applies preliminary action by pre-recording vibration signals and sound signals together in a synchronized manner during the signal acquisition phase. The control unit associates these signals with each other while maintaining their temporal relationship, so that when playback occurs, the synchronization is already established, eliminating the need for complex real-time parameter adjustments.
Solution Approach 2:
The patent uses feedback by recording actual vibration signals from real objects that naturally occur in synchronization with their corresponding sound signals. This authentic feedback loop captures the true temporal relationship between vibration and sound, which is then stored and reused, avoiding the need for artificial synchronization through complex signal processing.
3Adaptability or versatility
If signal processing is applied to generate vibration signals, then tactile feedback can be created, but the process becomes time-consuming and effort-intensive
Solution Approach 1:
The patent applies preliminary action by pre-capturing a library of actual vibration signals from various real objects during normal operation or dedicated recording sessions. These pre-recorded signals are stored and associated with corresponding sound signals, creating a ready-to-use library that can be directly applied for tactile feedback without requiring real-time signal processing, thus significantly improving efficiency.
Solution Approach 2:
The patent uses copying by creating and storing authentic copies of vibration signals from real objects. Instead of generating new vibration signals through processing reference signals, the system copies and reuses actual vibration data that has already been captured, maintaining high adaptability while dramatically improving productivity.
Data Source
AI summary
There is provided an information processing apparatus including an acquisition unit configured to acquire a vibration signal that indicates a detected vibration of a prescribed real object and a sound signal that indicates a collected sound from the real object, a control unit configured to synchronize the acquired vibration signal with the acquired sound signal, and associate the vibration signal and the sound signal with each other, the vibration signal and the sound signal having been synchronized, and a recoding unit configured to record the vibration signal and the sound signal which have been associated with each other.