Programmable Haptic Devices Compensating Audio-Haptic Interference
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Solution Overview
Problem
Conventional haptic feedback systems in gaming and virtual reality devices often suffer from interference between audio and haptic outputs, leading to suboptimal user experiences, especially when using integral speakers versus connected audio accessories like headphones.
Innovation Solution
A system that varies haptic effects based on the connectivity status of audio output accessories, adjusting the control signals for haptic output devices to generate different haptic effects when audio is output through headphones or integral speakers, ensuring stronger effects with connected accessories and weaker effects with integral speakers to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If haptic effects are strengthened to provide more immersive feedback, then user immersion is improved, but audio-haptic interference increases
Solution Approach 1:
The system dynamically adjusts haptic effect strength based on audio output conditions. When integral speakers are detected, the system automatically reduces haptic effect intensity to minimize interference, whereas connected audio accessories allow stronger haptic effects. This dynamic adaptation resolves the contradiction by making haptic strength conditional rather than fixed.
Solution Approach 2:
The system changes the parameter of haptic effect strength based on audio output device detection. By monitoring whether integral speakers or connected accessories are in use, the system modifies haptic parameters in real-time, allowing strong effects when interference is minimal and weak effects when interference would be problematic.
2Object-affected harmful factors
If haptic effects are weakened to reduce audio-haptic interference, then interference is reduced, but user immersion deteriorates
Solution Approach 1:
Rather than permanently weakening haptic effects, the system dynamically adjusts their strength based on audio output conditions. Connected audio accessories trigger strong haptic effects for full immersion, while integral speakers trigger reduced effects to minimize interference. This conditional approach ensures immersion is maintained when possible.
Solution Approach 2:
The system changes haptic effect parameters based on detected audio output device type. When connected accessories are detected, haptic parameters are set to maximum for immersion. When integral speakers are detected, parameters are reduced to minimize interference. This parameter adaptation resolves the contradiction contextually.
3Device complexity
If a single haptic effect profile is used for all audio output configurations, then device complexity is reduced, but haptic optimization is compromised
Solution Approach 1:
The haptic control system is designed to universally handle multiple audio output configurations through a single intelligent controller. The system detects audio device type and automatically selects appropriate haptic profiles, providing multi-functionality without requiring separate physical haptic systems for each audio configuration.
Solution Approach 2:
A single haptic control system dynamically adapts its behavior based on audio output conditions. Rather than requiring multiple fixed haptic systems, one dynamic system adjusts its output characteristics in real-time based on detected audio device type, maintaining simplicity while achieving optimization.
Data Source
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AI summary
A system includes a processor, an audio display, and a haptic peripheral including a haptic output device. The audio display includes a speaker and a headphone connector. The haptic output device is configured to receive a control signal from the processor and output a haptic effect to the haptic peripheral in response to the control signal from the processor. The processor is configured to vary the control signal for the haptic output device depending on an audio output accessory connectivity status of the audio display such that the haptic output device generates and applies a first haptic effect if the audio display is connected to an audio output accessory in order to output audio through the headphone connector and the haptic output device generates and applies a second haptic effect if the audio display is not connected to an audio output accessory in order to output audio through the speaker.