Dynamic Vibration Amplitude Control for Game Haptic Feedback

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Solution Overview

Problem

Conventional game systems with haptic feedback struggle to effectively manage vibration amplitudes during prolonged events, leading to discomfort and inadequate sensing of secondary events occurring during ongoing actions.

Innovation Solution

Incorporating a waveform information generator that adjusts vibration waveform amplitudes based on event duration and changes in event states, allowing for amplitude reduction over time and simultaneous vibration feedback for secondary events, thereby enhancing player sensation and reducing discomfort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the vibration amplitude is maintained at a high level during a continuing first event, then the player can clearly sense the ongoing event, but the player experiences discomfort and cannot sense secondary events occurring during the first event

Engineering Contradiction:
Improvesensing capabilityVSAvoiddiscomfort
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The vibration amplitude is dynamically adjusted based on the duration of the first event. The waveform information generator reduces the amplitude of the vibration waveform corresponding to the first event as time progresses, while simultaneously enabling vibration waveforms for secondary events to occur during the first event. This dynamic adjustment allows the system to adapt vibration characteristics to different event states, resolving the contradiction between maintaining clear event sensing and avoiding player discomfort.

Inventive Principle:
Principle #15Dynamics

2Object-affected harmful factors

If the vibration amplitude is reduced over time during a continuing first event, then the player experiences less discomfort, but the player may lose awareness that the first event is still ongoing

Engineering Contradiction:
ImprovediscomfortVSAvoidevent status awareness
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The system employs periodic vibration patterns where the amplitude is reduced over time during continuing events, but maintains rhythmic characteristics that provide temporal feedback. This periodic action pattern helps maintain player awareness of ongoing events even as amplitude decreases, because the rhythmic nature of the vibration continues to signal event progression and status changes.

Inventive Principle:
Principle #19Periodic action

3Measurement precision

If the vibration waveform amplitude is adjusted based on event duration and state changes, then the player can sense event progression and secondary events, but the vibration control system becomes more complex

Engineering Contradiction:
Improveevent sensing precisionVSAvoidvibration control complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The waveform information generator implements feedback mechanisms that monitor event duration and state changes, then automatically adjust vibration waveform amplitudes accordingly. This feedback-based control allows the system to respond dynamically to game events without requiring complex manual intervention, as the system self-regulates vibration parameters based on real-time event detection and timing information.

Inventive Principle:
Principle #23Feedback

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

This configuration enables players to better feel the progression of events through nuanced vibration feedback, reducing discomfort from sustained vibrations and improving the perception of secondary events, while maintaining a high frame rate for smooth gameplay.

Implementation Method 1

a vibration unit configured to vibrate on the basis of the vibration waveform information

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS10661162B2Game system, non-transitory storage medium having stored therein game program, game apparatus, and game method
Publication Date: 2020.05.26 NINTENDO CO LTD
  • US10661162B2 patent drawing
  • US10661162B2 patent drawing
  • US10661162B2 patent drawing

AI summary

A game system includes operation units, a game processing unit that performs game processing on the basis of operation onto the operation units, a waveform information generator that generates vibration waveform information representing a vibration waveform corresponding to a first event that occurs in the game processing, and vibration units that vibrate on the basis of the vibration waveform information. In a case where the first event continues, the waveform information generator generates the vibration waveform information such that the amplitude of the vibration waveform decreases in accordance with the lapse of time.