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1. (WO2015119629) MEMS DUAL COMB DRIVE

Pub. No.:    WO/2015/119629    International Application No.:    PCT/US2014/015441
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Sun Feb 09 00:59:59 CET 2014
IPC: H04R 3/06
H04R 19/02
Applicants: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Inventors: MARGALIT, Mordehai
Title: MEMS DUAL COMB DRIVE
Abstract:
Techniques described herein generally include methods and systems related to a speaker device comprises a planar oscillation element configured to generate an ultrasonic acoustic signal, a shutter element, a first comb drive, and a second comb drive. The shutter element is configured to cover an opening that is positioned to receive the ultrasonic acoustic signal to modulate the ultrasonic acoustic signal such that an audio signal is generated. The first comb drive is coupled to the shutter element and configured to displace the shutter element in a first direction and the second comb drive is coupled to the shutter element and configured to displace the shutter element in a second direction.