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Class Information
Number: 181/156
Name: Acoustics > Diaphragm and enclosure > Reflex baffle
Description: Subject matter wherein the vibrated means is substantially enclosed and a portion of a radiation wave from the rear of the vibrated means is propagated forward after a shift or modification of the wave.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8627920 Folded horn enclosure with inter-channel reflex-porting Jan. 14, 2014
8594360 Mounting structure for speaker and flat panel display Nov. 26, 2013
8483776 Acoustic path for a wireless communications device Jul. 9, 2013
8430201 Speaker enclosure Apr. 30, 2013
8430200 Speaker apparatus Apr. 30, 2013
8428284 Loudspeaker with passive low frequency directional control Apr. 23, 2013
8422714 Speaker with acoustic chamber Apr. 16, 2013
8397860 Speaker enclosure Mar. 19, 2013
8391528 Loudspeaker slotted duct port Mar. 5, 2013
8340337 Loudspeaker module Dec. 25, 2012
8327974 Sound enhancing apparatus Dec. 11, 2012
8311258 Headset Nov. 13, 2012
8256566 Speaker enclosure Sep. 4, 2012
8167083 Reconfigurable loudspeaker enclosure May. 1, 2012
8151929 Acoustic waveguide vibration damping Apr. 10, 2012
8139783 Speaker assembly arrangement for a vehicle and method of mounting a speaker Mar. 20, 2012
8130994 Waveguide Mar. 6, 2012
8094853 Speaker system and fitting device Jan. 10, 2012
8094842 Loudspeaker system and loudspeaker enclosure Jan. 10, 2012
8028792 Speaker apparatus Oct. 4, 2011
8019108 Speaker system Sep. 13, 2011
8014545 Ceiling or wall-mounted loudspeaker system with anti-diffraction wave launch device Sep. 6, 2011
8009846 Ultrasonic speaker and projector Aug. 30, 2011
8002078 Acoustic waveguide vibration damping Aug. 23, 2011
7928303 Insert for cajon drum Apr. 19, 2011
7870928 Bass reflex type speaker device Jan. 18, 2011
7845466 Sound generator with structurally and acoustically coupled sound radiation panel and method for manufacturing the same Dec. 7, 2010
7813770 Speaker module design Oct. 12, 2010
7789192 Loudspeaker port handle Sep. 7, 2010
7743878 Folded horn enclosure with unitary pathway Jun. 29, 2010
7711135 Sounding device May. 4, 2010
7686127 Acoustic chamber as part of adapter or appliance Mar. 30, 2010
7677354 Electronic apparatus having speaker unit incorporated therein Mar. 16, 2010
7654362 Speaker and method of outputting acoustic sound Feb. 2, 2010
7624839 Enclosure for symbiotic active/passive operation of an acoustic driver Dec. 1, 2009
7614479 Sound enhancement module Nov. 10, 2009
7610991 Speaker and method of outputting acoustic sound Nov. 3, 2009
7578367 Speaker set and electronic product incorporating the same Aug. 25, 2009
7578368 Speaker set for electronic product Aug. 25, 2009
7575095 Speaker Aug. 18, 2009
7556122 Upward-exhausting corner horn enclosure Jul. 7, 2009
7556121 Speaker set and mobile phone incorporating the same Jul. 7, 2009
7520368 Horizontally folded reflex-ported bass horn enclosure Apr. 21, 2009
7513332 Convertible folded horn enclosure with improved compactness Apr. 7, 2009
7506721 Convertible folded horn enclosure Mar. 24, 2009
7503422 Expandable speaker enclosure Mar. 17, 2009
7481295 Speaker system and speaker enclosure Jan. 27, 2009
7463746 Narrow opening electroacoustical transducing Dec. 9, 2008
7410029 Bass reflex type loudspeaker apparatus, loudspeaker box and image display apparatus Aug. 12, 2008
7350618 Multimedia speaker product Apr. 1, 2008

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