Invention Grant
- Patent Title: Haptic feedback using composite piezoelectric actuator
- Patent Title (中): 使用复合压电致动器的触觉反馈
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Application No.: US13775689Application Date: 2013-02-25
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Publication No.: US08878806B2Publication Date: 2014-11-04
- Inventor: Ali Modarres , Juan Manuel Cruz-Hernandez , Danny A. Grant , Christophe Ramstein
- Applicant: Immersion Corporation
- Applicant Address: US CA San Jose
- Assignee: Immersion Corporation
- Current Assignee: Immersion Corporation
- Current Assignee Address: US CA San Jose
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
An input/output device includes a touch sensitive layer configured to sense if an object touches the touch sensitive layer and to sense where the touch sensitive layer is contacted, a first electrode layer and second electrode layer, at least a portion of one of the first electrode layer and second electrode layer connected to at least a portion of the touch sensitive layer, and a composite piezoelectric layer connected between the first electrode layer and second electrode layer. The composite piezoelectric layer has a plurality of piezoelectric rods arranged in a polymer matrix. The polymer matrix provides the composite piezoelectric layer with a predetermined property. A drive circuit is configured to apply an alternating voltage to the first electrode layer and second electrode layer in response to the sensed object.
Public/Granted literature
- US20130162579A1 HAPTIC FEEDBACK USING COMPOSITE PIEZOELECTRIC ACTUATOR Public/Granted day:2013-06-27
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