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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 5

Patent Number Title Of Patent Date Issued
8627920 Folded horn enclosure with inter-channel reflex-porting Jan. 14, 2014
8428284 Loudspeaker with passive low frequency directional control Apr. 23, 2013
8422713 Spherically housed loudspeaker system Apr. 16, 2013
8422714 Speaker with acoustic chamber Apr. 16, 2013
8333261 Compact subwoofer cabinet Dec. 18, 2012
8151929 Acoustic waveguide vibration damping Apr. 10, 2012
8132642 Speaker system Mar. 13, 2012
8130994 Waveguide Mar. 6, 2012
8104569 Speaker cabinet system Jan. 31, 2012
8094842 Loudspeaker system and loudspeaker enclosure Jan. 10, 2012
8014545 Ceiling or wall-mounted loudspeaker system with anti-diffraction wave launch device Sep. 6, 2011
8002078 Acoustic waveguide vibration damping Aug. 23, 2011
7878296 Speaker embodying a stereo sound Feb. 1, 2011
7845462 Wide frequency range horn with modular method for reducing diffraction effects Dec. 7, 2010
7813770 Speaker module design Oct. 12, 2010
7766122 Acoustic energy projection system Aug. 3, 2010
7760895 Virtual sound imaging loudspeaker system Jul. 20, 2010
7711135 Sounding device May. 4, 2010
7669692 Sound diffuser Mar. 2, 2010
7621369 Acoustic energy projection system Nov. 24, 2009
7584820 Acoustic radiating Sep. 8, 2009
7565948 Acoustic waveguiding Jul. 28, 2009
7520368 Horizontally folded reflex-ported bass horn enclosure Apr. 21, 2009
7513332 Convertible folded horn enclosure with improved compactness Apr. 7, 2009
7463746 Narrow opening electroacoustical transducing Dec. 9, 2008
7296653 Sound control apparatus Nov. 20, 2007
7263387 Speaker module design Aug. 28, 2007
7207413 Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems Apr. 24, 2007
7201252 Loudspeaker systems Apr. 10, 2007
7123725 High intensity infrasonic tunable resonant acoustic test cell Oct. 17, 2006
RE39330 Speaker system and a method for improving sound quality thereof Oct. 10, 2006
7093688 Structure for preventing the generation of standing waves and a method for implementing the same Aug. 22, 2006
6886658 Loudspeaker enclosure system May. 3, 2005
6860363 Planar acoustic waveguide Mar. 1, 2005
6820718 Acoustic reproduction device with improved directional characteristics Nov. 23, 2004
6758303 Electronic device having a multi-mode acoustic system and method for radiating sound waves Jul. 6, 2004
6755277 Speaker resonance voicebox Jun. 29, 2004
6705426 Acoustic diffuser and method of production Mar. 16, 2004
6675932 Speaker housing configured to minimize standing waves and resonate above the frequency range of transducers Jan. 13, 2004
6643377 Audio output system and method therefor Nov. 4, 2003
6634455 Thin-wall multi-concentric sleeve speaker Oct. 21, 2003
6603862 Spherical loudspeaker system Aug. 5, 2003
6597797 Spherical loudspeaker system with enhanced performance Jul. 22, 2003
6578660 Speaker enclosure venturi expander Jun. 17, 2003
6568502 Sounder, speaker and sound head using the sounder May. 27, 2003
6520282 Sound enhancement mechanism for speaker sound system Feb. 18, 2003
6516072 Loudspeaker Feb. 4, 2003
6502662 Speaker having a hemispherical vibrator Jan. 7, 2003
6435301 Apparatus for the redistriabution of acoustic energy Aug. 20, 2002
6425456 Hollow semicircularly curved loudspeaker enclosure Jul. 30, 2002

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