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Class Information
Number: 381/89
Name: Electrical audio signal processing systems and devices > Having non-electrical feature (e.g., mounting) > Loudspeakers driven in given phase relationship
Description: Subject matter where there are a plurality of loudspeakers in the specific container which are driven such as that their output sound has a particular phase relationship.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7575095 |
Speaker |
Aug. 18, 2009 |
| 7571553 |
Control user interface for laundry appliances |
Aug. 11, 2009 |
| 7545946 |
Method and system for surround sound beam-forming using the overlapping portion of driver frequency ranges |
Jun. 9, 2009 |
| 7489787 |
Spa audio system |
Feb. 10, 2009 |
| 7477752 |
Loudspeaker system |
Jan. 13, 2009 |
| 7439873 |
Synthetically generated sound cues |
Oct. 21, 2008 |
| 7426278 |
Sound device provided with a geometric and electronic radiation control |
Sep. 16, 2008 |
| 7260228 |
Optimum driver spacing for a line array with a minimum number of radiating elements |
Aug. 21, 2007 |
| 7218240 |
Synthetically generated sound cues |
May. 15, 2007 |
| 7191022 |
Public addressing system |
Mar. 13, 2007 |
| 7139402 |
Sound reproduction device |
Nov. 21, 2006 |
| 7069061 |
Speaker assemblies and mobile terminals including the same |
Jun. 27, 2006 |
| 7039206 |
Dual diaphragm speaker |
May. 2, 2006 |
| 6985593 |
Baffle vibration reducing |
Jan. 10, 2006 |
| 6850623 |
Parametric loudspeaker with improved phase characteristics |
Feb. 1, 2005 |
| 6816598 |
Multiple driver, resonantly-coupled loudspeaker |
Nov. 9, 2004 |
| 6766033 |
Modular bass arraying |
Jul. 20, 2004 |
| 6764046 |
Ceiling speaker system of aircraft |
Jul. 20, 2004 |
| 6739424 |
Speaker system |
May. 25, 2004 |
| 6650758 |
Adaptive dual port loudspeaker implementation for reducing lateral transmission |
Nov. 18, 2003 |
| 6628790 |
Apparatus for on-ear operation and off-ear operation with two sound reproduction transducers |
Sep. 30, 2003 |
| 6556684 |
Spa audio system |
Apr. 29, 2003 |
| 6434240 |
Sound isolation cabinet using two sound sources to generate complimentary sound waves |
Aug. 13, 2002 |
| 6363157 |
Multiple element electroacoustic transducing |
Mar. 26, 2002 |
| 6359330 |
Optoelectronic module and method for stabilizing its temperature |
Mar. 19, 2002 |
| 6324052 |
Personal computing devices comprising a resonant panel loudspeaker |
Nov. 27, 2001 |
| 6181796 |
Method and system which drives left, right, and subwoofer transducers with multichannel amplifier having reduced power supply requirements |
Jan. 30, 2001 |
| 6150733 |
Method and device for influencing an impression which is subjectively perceived by an occupant of a vehicle, in particular of a passenger car, when the vehicle is being operated |
Nov. 21, 2000 |
| 6088459 |
Loudspeaker system with simulated baffle for improved base reproduction |
Jul. 11, 2000 |
| 6035051 |
Sound apparatus |
Mar. 7, 2000 |
| 6031921 |
Loudspeaker unit |
Feb. 29, 2000 |
| 5956411 |
Personal multimedia speaker system |
Sep. 21, 1999 |
| 5953432 |
Line source speaker system |
Sep. 14, 1999 |
| 5887068 |
Multi-driver in-phase bipolar array loudspeaker |
Mar. 23, 1999 |
| 5812686 |
Device for active simultation of an acoustical impedance |
Sep. 22, 1998 |
| 5807617 |
Hollow structural component |
Sep. 15, 1998 |
| 5796854 |
Thin film speaker apparatus for use in a thin film video monitor device |
Aug. 18, 1998 |
| 5793876 |
Method for the diffusion of a sound with a given density |
Aug. 11, 1998 |
| 5748753 |
High power audio subwoofer |
May. 5, 1998 |
| 5742690 |
Personal multimedia speaker system |
Apr. 21, 1998 |
| 5734728 |
Portable sound speaker system and driving circuit therefor |
Mar. 31, 1998 |
| 5721784 |
Asymmetrical driver for asymmetrical loudspeakers |
Feb. 24, 1998 |
| 5673329 |
Omni-directional loudspeaker system |
Sep. 30, 1997 |
| 5664020 |
Compact full-range loudspeaker system |
Sep. 2, 1997 |
| 5590214 |
Vertical array type speaker system |
Dec. 31, 1996 |
| 5588063 |
Personal multimedia speaker system |
Dec. 24, 1996 |
| 5561717 |
Loudspeaker system |
Oct. 1, 1996 |
| 5553147 |
Stereophonic reproduction method and apparatus |
Sep. 3, 1996 |
| 5537479 |
Dual-driver bass speaker with acoustic reduction of out-of-phase and electronic reduction of in-phase distortion harmonics |
Jul. 16, 1996 |
| 5533135 |
Crossover system |
Jul. 2, 1996 |
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