Speaker having improved sound-radiating function to both directions
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 4, 2009
Grant Date -
Dec 8, 2005
app pub date -
May 16, 2005
filing date -
May 25, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A speaker having an improved sound-radiating function to both directions is provided. The speaker includes a magnetic circuit unit, a voice coil, and an auxiliary vibrating plate and a primary vibrating plate sequentially arranged from a forward direction. The voice coil vibrates toward a backward direction and a forward direction due to interaction with the magnetic circuit unit. The auxiliary vibrating plate is cone-shaped and has a damping function. The primary vibrating plate is also cone-shaped. Central necks of the primary vibrating plate and the auxiliary vibrating plate are fixed on the voice coil, respectively. The auxiliary vibrating plate is enlarged toward a forward direction and the primary vibrating plate is enlarged toward a backward direction.
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