Multi-mode Haptic Actuator with Recoil and Vibration Motors
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Solution Overview
Problem
Conventional haptic actuators in interactive games and AR/VR experiences provide limited and homogeneous feedback, mainly through buzzing vibrations, failing to deliver immersive and varied haptic experiences.
Innovation Solution
A multi-mode haptic effects delivery system that includes a casing with a mass and driving mechanism, utilizing a combination of recoil and vibration motors, gear assemblies, and mass arresting mechanisms to generate both recoil and vibrational haptic effects, which can be delivered concurrently or selectively, enhancing the sensory experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional haptic actuators are used, then the device structure remains simple, but the haptic feedback variety and immersion are limited
Solution Approach 1:
The haptic actuator is divided into two independent motor systems: a vibration motor for generating vibrational haptic effects and a recoil motor for generating recoil haptic effects. Each motor operates independently with its own control circuit, allowing the system to deliver different types of haptic feedback through separate mechanical pathways, thereby increasing haptic feedback variety while maintaining manageable device complexity through modular design
Solution Approach 2:
The control circuit is designed to selectively activate either the vibration motor, the recoil motor, or both simultaneously based on game events and haptic effect parameters. This multi-functional control capability allows a single haptic actuator assembly to deliver multiple types of haptic feedback (vibrational, recoil, or combined), enhancing adaptability without requiring separate dedicated actuators for each haptic mode
2Reliability
If multiple haptic modes are implemented, then the haptic feedback quality improves, but the control complexity increases
Solution Approach 1:
The control circuit receives haptic effect parameters from the processor that specify the desired haptic feedback type and characteristics. Based on these parameters, the control circuit selectively activates the appropriate motor (vibration, recoil, or both) and adjusts their operation to achieve the desired haptic effect quality, ensuring reliable delivery of diverse haptic feedback while maintaining straightforward control logic
Solution Approach 2:
The system pre-configures the control circuit with the ability to selectively activate different motor combinations based on anticipated game events and haptic effect requirements. This preliminary preparation of control pathways allows the system to quickly switch between haptic modes without complex real-time decision-making, reducing control complexity while maintaining high haptic feedback quality
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
The system provides a more immersive and varied haptic feedback experience by generating both recoil and vibrational modes, allowing for enhanced engagement in interactive games and AR/VR applications, with the capability to deliver these effects concurrently or separately.
Implementation Method 1
a vibration motor configured to generate one or more vibrational mode haptic effects
Implementation Method 2
a recoil motor configured to generate one or more recoil mode haptic effects... cause the mass to reciprocate and impact the impact surface
Data Source
AI summary
In one implementation, a multi-mode haptic effects delivery system includes an impact surface, a mass adjacent to the impact surface, and a driving mechanism configured to reciprocate the mass. The multi-mode haptic effects delivery system also includes a motor configured to generate a vibrational mode haptic effect. The driving mechanism configured to reciprocate the mass causes the mass to strike the impact surface so as to generate a recoil mode haptic effect. In one implementation, the driving mechanism is a gear assembly powered by the same motor used to generate the vibrational mode haptic effect.