Abstract: A haptic actuator includes mechanical links defining a first J-trajectory and mechanical links defining a second J-trajectory as well as a motor coupled to the mechanical links so as to synchronously accelerate a first mass over the first J-trajectory and a second mass over the second J-trajectory. During a first time interval, reactive forces of the first mass accelerating substantially balance reactive forces of the second mass accelerating and during a second time interval reactive forces of the first mass accelerating do not substantially balance reactive forces of the second mass accelerating. This un-balanced condition results in a tap signal being produced.
Type:
Grant
Filed:
October 29, 2018
Date of Patent:
July 14, 2020
Assignee:
Vibrant Composites Inc.
Inventors:
Pratheev Sabaratnam Sreetharan, Michael Karpelson