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公开(公告)号：US20190318590A1
公开(公告)日：2019-10-17
申请号：US15955446
申请日：2018-04-17
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY , FACEBOOK, INC.
Inventor： Osama R. BILAL , Vincenzo COSTANZA , Chiara DARAIO , Frances LAU , Ali ISRAR
IPC: G08B6/00
Abstract: A haptic device can be realized with a single acoustic actuator controlling multiple unit cells by having the unit cells be composed of cantilever arms with different resonant frequencies. The unit cells can be further improved by having the cantilever arms be in a spiral shape, and more specifically an Archimedes spiral shape.
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