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公开(公告)号：US11462128B2
公开(公告)日：2022-10-04
申请号：US16657972
申请日：2019-10-18
发明人： Robert LiKamWa , Shahabedin Sagheb , Alireza Bahremand , Byron Lahey , Frank Wencheng Liu , Assegid Kidane
摘要： A haptic feedback system to stimulate physical sensation of handling a fluid in virtual spaces. The system includes a physical vessel containing a solid object and mechanical means to move the solid object therein, a virtual reality module to track a position of the physical vessel and a corresponding virtual vessel, logic to simulate a fluid contained in the virtual vessel based on the tracked position of the virtual vessel, logic to calculate coordinates of a center of gravity for the simulated fluid based on the tracked position of the virtual vessel, logic to translate the calculated coordinates of the center of gravity for the simulated fluid into cylindrical coordinates to which to move the solid object in the physical vessel, and logic to send instructions to the mechanical means to move the solid object in the physical vessel based on the cylindrical coordinates to shift the weight of the physical vessel in accordance with the center of gravity of the simulated fluid in the virtual vessel.
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公开(公告)号：US20200160750A1
公开(公告)日：2020-05-21
申请号：US16657972
申请日：2019-10-18
发明人： Robert LiKamWa , Shahabedin Sagheb , Alireza Bahremand , Byron Lahey , Frank Wencheng Liu , Assegid Kidane
摘要： A haptic feedback system to stimulate physical sensation of handling a fluid in virtual spaces. The system includes a physical vessel containing a solid object and mechanical means to move the solid object therein, a virtual reality module to track a position of the physical vessel and a corresponding virtual vessel, logic to simulate a fluid contained in the virtual vessel based on the tracked position of the virtual vessel, logic to calculate coordinates of a center of gravity for the simulated fluid based on the tracked position of the virtual vessel, logic to translate the calculated coordinates of the center of gravity for the simulated fluid into cylindrical coordinates to which to move the solid object in the physical vessel, and logic to send instructions to the mechanical means to move the solid object in the physical vessel based on the cylindrical coordinates to shift the weight of the physical vessel in accordance with the center of gravity of the simulated fluid in the virtual vessel.
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公开(公告)号：US20240269336A1
公开(公告)日：2024-08-15
申请号：US18553089
申请日：2022-04-01
申请人： Alireza BAHREMAND , Richard GERKIN , Mason MANETTA , Jessica LAI , Robert LIKAMWA , Brian SMITH , Christy SPACKMAN , ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
发明人： Alireza Bahremand , Richard Gerkin , Mason Manetta , Jessica Lai , Robert LiKamWa , Brian Smith , Christy Spackman
CPC分类号： A61L9/125 , A61M21/02 , A63F13/28 , G05D11/13 , A61L2209/11 , A61L2209/134 , A61M2021/0016 , A61M2021/005
摘要： Described herein are systems, methods, and apparatuses for implementing olfactory delivery in virtualized environments using an olfactory delivery engine. Mimicking physical odor sensations virtually can present users with a real-time odor synthesis that approximates what users would smell in a virtual environment, e.g., as they walk around in virtual reality. A novel Smell Engine is described herein which includes: (i) a Smell Composer framework that allows developers to configure odor sources in virtual space, (ii) a Smell Mixer that dynamically estimates the odor mix that the user would smell, based on diffusion models and relative odor source distances, and (iii) a Smell Controller that coordinates an olfactometer to physically present an approximation of the odor mix to the user's mask from a set of odorants channeled through controllable flow valves. Experimental results show that the Smell Engine can help measure a subject's olfactory detection threshold and improve their ability to precisely localize odors in the virtual environment, as compared to existing trigger-based solutions. Other related embodiments are disclosed.
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