| |
 |
|
Class Information
Number: 381/345
Name: Electrical audio signal processing systems and devices > Electro-acoustic audio transducer > Having acoustic wave modifying structure > Acoustic enclosure
Description: Subject matter including a housing surrounding the electro-acoustic transducer wherein the housing is specifically configured to modify characteristics of sound emitted or received by the transducer.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6144751 |
Concentrically aligned speaker enclosure |
Nov. 7, 2000 |
| 6141428 |
Audio speaker system |
Oct. 31, 2000 |
| 6130951 |
Speaker having multiple sound bodies and multiple sound openings |
Oct. 10, 2000 |
| 6118883 |
System for controlling low frequency acoustical directivity patterns and minimizing directivity discontinuities during frequency transitions |
Sep. 12, 2000 |
| 6104823 |
Speaker system |
Aug. 15, 2000 |
| 6091829 |
Microphone apparatus |
Jul. 18, 2000 |
| 6038327 |
Electroacoustic transducer comprising a closing member for closing the rear volume of the transducer |
Mar. 14, 2000 |
| 6016099 |
Automatically active personal alert safety system |
Jan. 18, 2000 |
| 6002781 |
Speaker system |
Dec. 14, 1999 |
| RE36327 |
Electroacoustic transducer and method of fabricating the same |
Oct. 5, 1999 |
| 5933509 |
Band pass speaker |
Aug. 3, 1999 |
| 5917923 |
Satellitic compact electroacoustical transducing |
Jun. 29, 1999 |
| 5889875 |
Electroacoustical transducing |
Mar. 30, 1999 |
| 5883966 |
Portable telephone with a speaker having an improved acoustic characteristic |
Mar. 16, 1999 |
| 5875255 |
High power electroacoustic speaker system having wide band frequency response |
Feb. 23, 1999 |
| 5848173 |
Surroundless loudspeaker |
Dec. 8, 1998 |
| 5825900 |
Loudspeaker housing for video display appliance |
Oct. 20, 1998 |
| 5812689 |
Low-powered loud speaker provided with echo generator |
Sep. 22, 1998 |
| 5812686 |
Device for active simultation of an acoustical impedance |
Sep. 22, 1998 |
| 5809154 |
Ported loudspeaker system and method |
Sep. 15, 1998 |
| 5805708 |
Speaker system for computer |
Sep. 8, 1998 |
| 5802188 |
Integrated chassis and resonance component in an electronic device |
Sep. 1, 1998 |
| 5781642 |
Speaker system |
Jul. 14, 1998 |
| 5771302 |
Subwoofer--loudspeaker box |
Jun. 23, 1998 |
| 5742690 |
Personal multimedia speaker system |
Apr. 21, 1998 |
| 5734728 |
Portable sound speaker system and driving circuit therefor |
Mar. 31, 1998 |
| 5732140 |
Acoustic speaker system with expandable speaker enclosure |
Mar. 24, 1998 |
| 5727077 |
Electroacoustic transducer comprising a closing member |
Mar. 10, 1998 |
| 5710821 |
Audio communications system with built in expansion capability for a desktop computer |
Jan. 20, 1998 |
| 5689573 |
Frequency-dependent amplitude modification devices for acoustic sources |
Nov. 18, 1997 |
| 5689574 |
Integral sound module for a modular monitor |
Nov. 18, 1997 |
| 5674076 |
Hand-held sound generating device |
Oct. 7, 1997 |
| 5668882 |
Notebook computer speakers |
Sep. 16, 1997 |
| 5664020 |
Compact full-range loudspeaker system |
Sep. 2, 1997 |
| 5659155 |
Acoustical transducer enclosure |
Aug. 19, 1997 |
| 5657392 |
Multi-way speaker with a cabinet defining a midrange driver pyramidal compartment |
Aug. 12, 1997 |
| 5629987 |
Loudspeaker system with closed housing for improved bass reproduction |
May. 13, 1997 |
| 5621804 |
Composite loudspeaker apparatus and driving method thereof |
Apr. 15, 1997 |
| 5606297 |
Conical ultrasound waveguide |
Feb. 25, 1997 |
| 5606626 |
Speaker system with an anion generator and television using the speaker system |
Feb. 25, 1997 |
| 5590208 |
Speaker system |
Dec. 31, 1996 |
| 5588063 |
Personal multimedia speaker system |
Dec. 24, 1996 |
| 5584447 |
Noise control using a plate radiator and an acoustic resonator |
Dec. 17, 1996 |
| 5550921 |
Stereo sound source for portable computer |
Aug. 27, 1996 |
| 5524151 |
Electroacoustic transducer having a mask |
Jun. 4, 1996 |
| 5517573 |
Ported loudspeaker system and method with reduced air turbulence |
May. 14, 1996 |
| 5394478 |
Low frequency sound generation system for use in vehicular passenger compartments |
Feb. 28, 1995 |
| 5386479 |
Piezoelectric sound sources |
Jan. 31, 1995 |
| 5327507 |
Headphone apparatus |
Jul. 5, 1994 |
| 5317305 |
Personal alarm device with vibrating accelerometer motion detector and planar piezoelectric hi-level sound generator |
May. 31, 1994 |
|
|
|
