Noise reducing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 14, 2004
Issued Date -
N/A
app pub date -
Jun 21, 2001
filing date -
Apr 17, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A module adapted for use in a noise reduction headset earcup has an enclosure having walls separating an interior of the enclosure from an exterior of the enclosure outside the earcup. There is a driver with a diaphragm. A port connects the interior and exterior. An acoustically resistive opening connects the interior and exterior in parallel with the port.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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