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Class Information
Number: 381/413
Name: Electrical audio signal processing systems and devices > Electro-acoustic audio transducer > Electromagnetic (e.g., dyynamic) > Magnetic circuit > Having damping
Description: Subject matter including a sound or vibration absorbing means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7403632 |
Audio speaker utilizing an unanchored magnet for primary force generation |
Jul. 22, 2008 |
| 7224817 |
Loudspeaker |
May. 29, 2007 |
| 7130441 |
Speaker system having processing circuitry |
Oct. 31, 2006 |
| 7082208 |
Speaker assembly having plural drivers |
Jul. 25, 2006 |
| 7035419 |
Anti-resonant structure for speakers |
Apr. 25, 2006 |
| 6968071 |
Speaker having magnetic member installed on diaphragm |
Nov. 22, 2005 |
| 6914998 |
Speaker apparatus |
Jul. 5, 2005 |
| 6810126 |
Planar magnetic transducer |
Oct. 26, 2004 |
| 6738490 |
Loudspeaker with independent magnetic dampening and excursion control |
May. 18, 2004 |
| 6654477 |
Receiver and method of construction |
Nov. 25, 2003 |
| 6574346 |
Bass reproduction speaker apparatus |
Jun. 3, 2003 |
| 6539097 |
Multi-functional vibration actuator |
Mar. 25, 2003 |
| 6466682 |
Vibration speaker |
Oct. 15, 2002 |
| 6385327 |
Device having two coaxially disposed bodies which are movable relative to one another along a translation axis |
May. 7, 2002 |
| 6192136 |
Inertial vibration transducers |
Feb. 20, 2001 |
| 6041131 |
Shock resistant electroacoustic transducer |
Mar. 21, 2000 |
| 5923769 |
Electroacoustic transducer |
Jul. 13, 1999 |
| 5878150 |
Damper for a loudspeaker and a method for producing the same |
Mar. 2, 1999 |
| 5862242 |
Speaker |
Jan. 19, 1999 |
| 5003610 |
Whole surface driven speaker |
Mar. 26, 1991 |
| RE32785 |
Audio-frequency electromechanical vibrator |
Nov. 15, 1988 |
| 4354067 |
Audio-band electromechanical vibration converter |
Oct. 12, 1982 |
| 3956599 |
Dome loudspeaker |
May. 11, 1976 |
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