Measuring and testing – Vibration – Sensing apparatus
Reexamination Certificate
2003-08-20
2008-11-04
Williams, Hezron E. (Department: 2856)
Measuring and testing
Vibration
Sensing apparatus
C073S655000, C381S312000, C381S313000, C381S328000, C029S896210, C398S134000
Reexamination Certificate
active
07444877
ABSTRACT:
A directionally-sensitive device for detecting and processing vibration waves includes an array of polymeric optical waveguide resonators positioned between a light source, such as an LED array, and a light detector, such as a photodiode array. The resonators which are preferably oriented substantially perpendicularly with respect to incoming vibration waves, vibrate when a wave is detected, thus modulating light signals that are transmitted between the light source and the light detector. The light detector converts the modulated light into electrical signals which, in a preferred embodiment, are used to drive either the speaker of a hearing aid or the electrode array of a cochlear implant. The device is manufactured using a combination of traditional semiconductor processes and polymer microfabrication techniques.
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Bachman Mark
Coffey Patrick
Li Guann-Pyng
Xu Tao
Zeng Fan-Gang
Buyan Robert D.
Miller Rose M
Stout, Uxa Buyan & Mullins, LLP
The Regents of the University of California
Williams Hezron E.
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