Patent ID: 11892466
Assignee: QUALCOMM TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A voice accelerometer device comprising:
a sensor device having a resonance frequency of at least 3 kHz, the sensor device comprising:
a substrate;
a spacer layer supported over a first surface of the substrate; and
at least one tapered cantilever beam element having a base portion that is supported over the substrate and spaced from the substrate by the spacer layer, wherein the at least one tapered cantilever beam element tapers in width from the base portion to a first portion of the at least one tapered cantilever beam element, and wherein the at least one tapered cantilever beam element includes a first piezoelectric layer and a pair of electrically conductive layers disposed on opposing surfaces of the first piezoelectric layer, wherein the at least one tapered cantilever beam element has an electrical discontinuity in at least one of the pair of electrically conductive layers that provides an electrically active portion of the at least one tapered cantilever beam element and an electrically inactive portion of the at least one tapered cantilever beam element; and

a detector circuit configured to receive an output signal from the sensor device and produce an output signal.