Mechanical Acceleration Haptics Mixing for Concurrent Events
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Solution Overview
Problem
Haptic feedback systems lack standardized techniques to handle concurrent haptic events that fully or partially overlap in a time domain, leading to inconsistent user experiences and degraded waveform quality across different devices.
Innovation Solution
A haptics mixer component that receives and combines multiple concurrent and asynchronous haptic events, generating a mixed haptics signal in a mechanical acceleration domain that preserves timing and synchronization information, and outputs a PCM voltage signal to haptic actuators, facilitating consistent behavior across platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple concurrent haptic events are processed without standardized mixing techniques, then device complexity increases and handling becomes difficult, but haptic signal quality and user experience consistency deteriorate
Solution Approach 1:
The patent introduces a haptics mixer component as an intermediary that receives multiple concurrent haptic events and combines them into a single mixed haptic signal. This mediator handles the complexity of concurrent event processing while maintaining signal quality, resolving the contradiction by centralizing the mixing function in a dedicated component that applies standardized techniques.
Solution Approach 2:
The haptics mixer transforms multiple haptic signals by changing their parameters (amplitude, frequency, timing) to create a combined output signal. By adjusting these parameters systematically, the mixer maintains high signal quality while processing multiple concurrent events, thus improving ease of operation without sacrificing precision.
2Device complexity
If haptic events are combined without preserving timing information, then device complexity is reduced, but synchronization accuracy and user experience consistency worsen
Solution Approach 1:
The haptics mixer performs preliminary timing analysis and synchronization of multiple haptic events before combining them. By pre-processing the timing information and establishing a synchronized timeline, the system maintains accurate timing relationships in the mixed output without requiring complex real-time adjustment mechanisms, thus reducing overall device complexity while preserving synchronization precision.
3Reliability
If standardized haptics mixing techniques are implemented, then user experience consistency improves, but adaptability to different haptic devices decreases
Solution Approach 1:
The haptics mixer is designed with universal functionality that allows it to handle multiple types of haptic events and adapt to different haptic device characteristics. It implements standardized mixing techniques that work across various device types while maintaining user experience consistency, thus achieving both reliability and adaptability through a multi-functional design.
Data Source
AI summary
In some aspects, an electronic device may receive a plurality of haptic signals associated with a plurality of haptic events, wherein the plurality of haptic events overlap in a time domain. The electronic device may generate a mixed haptics signal that combines the plurality of haptic signals in a mechanical acceleration domain, wherein the mixed haptics signal preserves timing or synchronization information associated with the plurality of haptic signals. The electronic device may generate an output stream to be provided to a haptic actuator, wherein the output stream includes a pulse code modulation (PCM) voltage signal based on the mixed haptics signal that combines the plurality of haptic signals. Numerous other aspects are described.