Docket #: S17-113
Grabity: A Virtual Reality Controller that Simulates Weight and Stiffness
Stanford researchers in the SHAPE lab have patented a virtual reality, haptic device called 'Grabity' that simulates weight, stiffness, and torque. Grabity uses two linear resonant actuators (LRA) attached adjacent to the fingers to simulate stiffness and buoyancy of virtual objects while grasping. Unlike existing devices, this efficient method provides realistic mass perception making it ideal for virtual and augmented reality and gaming applications.
Stage of Development - Prototype
Inventors have successfully built and demonstrated the prototype device. (See the following video demonstration.)
Applications
- Haptics for gaming, virtual reality and augmented reality
Advantages
- First haptic device to provide the perception of weight
- Efficient method - uses only two LRAs with bearings and brake modules
- More realistic and immersive VR experience - simulates grasping forces, weight, buoyancy, and stiffness
Publications
- Choi, I., Culbertson, H., Miller, M. R., Olwal, A., & Follmer, S. (2017, October). Grabity: A wearable haptic interface for simulating weight and grasping in virtual reality. In Proceedings of the 30th Annual ACM Symposium on User Interface Software and Technology (pp. 119-130).
- Choi, I., Follmer, S., & Culbertson, H. (2021). U.S. Patent No. 11,036,299. Washington, DC: U.S. Patent and Trademark Office.
Related Links
Patents
- Published Application: 20190011401
- Issued: 10852872 (USA)
- Issued: 11,036,299 (USA)
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