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Class Information
Number: 181/155
Name: Acoustics > Diaphragm and enclosure > Reflector baffle
Description: Subject matter wherein the vibrated means is substantially enclosed and a portion of a radiation wave from in front of the vibrated means is deflected or modified.


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
5815589 Push-pull transmission line loudspeaker Sep. 29, 1998
5804774 Ported reflex horn Sep. 8, 1998
5802196 Speaker for radiating sound waves in all directions relative to a speaker supporting surface Sep. 1, 1998
5793001 Synchronized multiple transducer system Aug. 11, 1998
5784473 Sound system Jul. 21, 1998
5764782 Acoustic reflector Jun. 9, 1998
5764783 Variable beamwidth transducer Jun. 9, 1998
5739480 Speaker base for alternatively mounting different drivers Apr. 14, 1998
5734728 Portable sound speaker system and driving circuit therefor Mar. 31, 1998
5721401 Sub-woofer module Feb. 24, 1998
5675131 Speaker system and the same for television sets Oct. 7, 1997
5673329 Omni-directional loudspeaker system Sep. 30, 1997
5637840 Miniaturized high power speaker Jun. 10, 1997
5616892 Virtual imaging multiple transducer system Apr. 1, 1997
5532438 Acoustic imaging sound dome Jul. 2, 1996
5525767 High-performance sound imaging system Jun. 11, 1996
5485521 Audio mirror speaker Jan. 16, 1996
5451726 Omnidirectional speaker system Sep. 19, 1995
5446792 Reflection-type speaker apparatus Aug. 29, 1995
5418336 Sound output device May. 23, 1995
5402502 Sound output system Mar. 28, 1995
5359158 Ceiling-mounted loudspeaker Oct. 25, 1994
5327985 Acoustical transducer enclosure Jul. 12, 1994
5306880 Omnidirectional speaker system Apr. 26, 1994
5298690 Sound distributor with symmetry of revolution Mar. 29, 1994
5274709 Speaker device for television receiver Dec. 28, 1993
5268539 Acoustic apparatus Dec. 7, 1993
5268538 Hemispherically wide-radiating-angle loudspeaker system Dec. 7, 1993
5266752 Reflex folded horn speaker enclosure Nov. 30, 1993
5258584 Multiple auxiliary compound driver loudspeaker system Nov. 2, 1993
5250763 Acoustical equalization device system Oct. 5, 1993
5229555 Speaker system and TV with the same Jul. 20, 1993
5227591 Loudspeaker arrangement Jul. 13, 1993
5225639 Loudspeaker Jul. 6, 1993
5220608 Method and means for stereophonic sound reproduction Jun. 15, 1993
5216210 Loudspeaker system with passive sound reflective intensifier Jun. 1, 1993
5216209 Loudspeaker system and method for disbursing sounds waves Jun. 1, 1993
5194700 Louver structure with movable slats for a loudspeaker box Mar. 16, 1993
5189706 Acoustic apparatus Feb. 23, 1993
5187333 Coiled exponential bass/midrange/high frequency horn loudspeaker Feb. 16, 1993
5181301 Method of making a very compact audio warning system Jan. 26, 1993
5173942 Audio system operable in directional and non-directional modes Dec. 22, 1992
5144670 Sound output system Sep. 1, 1992
5115882 Omnidirectional dispersion system for multiway loudspeakers May. 26, 1992
5105905 Co-linear loudspeaker system Apr. 21, 1992
5086871 Omnidirectional electro-accoustical chamber Feb. 11, 1992
5031220 Mobile stereo speaker set Jul. 9, 1991
4991688 Audio speaker system Feb. 12, 1991
4984653 Loudspeaker arrangement Jan. 15, 1991
4979586 Acoustically shielded motorcycle helmet speaker enclosure Dec. 25, 1990

1 2 3 4


 
 
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