Back to results
US 10,477,300 B2Granted
Air pulse generating element and sound producing device
AssigneexMEMS Labs, Inc.
InventorsDavid Hong, Chiung C. Lo, Jemm Yue Liang
Life of this patent
Estimating the term…
Abstract
An air pulse generating element, disposed in a sound producing device, includes a membrane, disposed within a chamber; and a plurality of valves, disposed by the membrane within the chamber, configured to seal a plurality of openings of the chamber in response to a plurality of valve control signals; wherein the membrane and the plurality of valves are all fabricated at a first layer.
Claims18
An air pulse generating element, disposed in a sound producing device, comprising:
- a membrane, disposed within a chamber;
- and a plurality of valves, disposed by the membrane within the chamber, configured to seal a plurality of openings of the chamber in response to a plurality of valve control signals;
- wherein the membrane and the plurality of valves are all fabricated at a first layer;
- wherein the plurality of valves comprises:
- a first valve, controlled by a first valve control signal, configured to seal a first opening of the chamber at a first time and to seal a second opening of the chamber at a second time:
- a second valve, controlled by a second valve control signal, configured to seal a third opening of the chamber at a third time and to seal a fourth opening of the chamber at a fourth time;
- wherein the first opening is formed on a first faceplate of the air pulse generating element, and the first faceplate is disposed at a second layer;
- wherein the second opening is formed on a second faceplate of the air pulse generating element, and the second faceplate is disposed at a third layer;
- wherein the third opening is formed on the first faceplate of the air pulse generating element;
- wherein the fourth opening is formed on the second faceplate of the air pulse generating element.
7 more elements
A sound producing device, comprising:
- a plurality of air pulse generating elements, wherein an air pulse generating element comprises:
- a membrane, disposed within a chamber;
- and a plurality of valves, disposed by the membrane within the chamber, configured to seal a plurality of openings of the chamber in response to a plurality of valve control signals;
- wherein the membrane and the plurality of valves are all fabricated at a first layer;
- wherein the plurality of valves comprises:
- a first valve, controlled by a first valve control signal, configured to seal a first opening of the chamber at a first time and to seal a second opening of the chamber at a second time;
- a second valve, controlled by a second valve control signal, configured to seal a third opening of the chamber at a third time and to seal a fourth opening of the chamber at a fourth time;
- wherein the first opening is formed on a first faceplate of the air pulse generating element, and the first faceplate is disposed at a second layer;
- wherein the second opening is formed on a second faceplate of the air pulse generating element, and the second faceplate is disposed at a third layer;
- wherein the third opening is formed on the first faceplate of the air pulse generating element;
- wherein the fourth opening is formed on the second faceplate of the air pulse generating element;
- and
- a control unit, configured to generate the plurality of valve control signals.
10 more elements
Dependencies are inferred from the claim text.