Active noise cancellation system, arrangement, and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 26, 2009
Grant Date -
Oct 13, 2005
app pub date -
Apr 2, 2004
filing date -
Apr 2, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Noise of a noise-producing object may be at least partially cancelled by a system that emits sound at a polarity substantially opposite to a polarity of detected noise and includes a member having elements disposed in the vicinity of a noise-producing object, some of the elements may be configured to emit noise, and some of the elements may be configured to detect noise and where a signal indicative of the detected noise may be received by a controller which sends a signal to cause at least some of the elements to emit sound at a polarity substantially opposite that of the detected noise, and includes an analyzer to determine when detected noise is indicative of one or more conditions of the noise producing object.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully