Loudspeaker with coaxial magnetic circuit for high-pitch sound and low-pitch sound
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 11, 2003
Grant Date -
Nov 6, 2003
app pub date -
May 6, 2002
filing date -
May 6, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention comprises a supporting stand provided with an enlarged opening in a front and a damper in a rear for adhering to the sound coil. A magnetic circuit supported by a cylinder and connecting to the supporting stand and both ends of the magnetic circuit are provided with movement-accommodating space; first sound coil provided in the movement-accommodating space on one end of the space on the other end of the magnetic circuit; first diaphragm provided in an inner rim of the enlarged opening and adhering to the first sound coil; and second diaphragm provided in the inner rim of magnetic circuit; first diaphragm provided in an inner sound coil. Thereby allowing the magnetic circuit to be installed in front of the supporting stand; and thus high-pitch sound and low-pitch sound simultaneously output from a single device.
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