Inventor
BUTTON DOUGLAS J
US35 patents
⚠️ This page may combine multiple inventors who share the name “BUTTON DOUGLAS J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HARMAN INT IND
28 patentsUS5748760AMay 5, 1998
Dual coil drive with multipurpose housing
HARMAN INT IND93 citations96
US5042072AAug 20, 1991
Self-cooled loudspeaker
HARMAN INT IND70 citations96
US7012345B2Mar 14, 2006
Electromagnetic motor with flux stabilization ring, saturation tips, and radiator
HARMAN INT IND16 citations92
US6774510B1Aug 10, 2004
Electromagnetic motor with flux stabilization ring, saturation tips, and radiator
HARMAN INT IND29 citations92
US7447318B2Nov 4, 2008
System for using digital signal processing to compensate for power compression of loudspeakers
HARMAN INT IND24 citations90
US6847726B2Jan 25, 2005
Shorting rings in dual-coil dual-gap loudspeaker drivers
HARMAN INT IND21 citations89
US6768806B1Jul 27, 2004
Shorting rings in dual-coil dual-gap loudspeaker drivers
HARMAN INT IND33 citations89
US7684574B2Mar 23, 2010
Reflective loudspeaker array
HARMAN INT IND16 citations83
US6952874B2Oct 11, 2005
Two-stage phasing plug system in a compression driver
HARMAN INT IND7 citations74
US9955260B2Apr 24, 2018
Asymmetrical passive group delay beamforming
HARMAN INT IND3 citations73
US9769560B2Sep 19, 2017
Manifold for multiple compression drivers with a single point source exit
HARMAN INT IND3 citations73
US9173035B2Oct 27, 2015
Dual coil moving magnet transducer
HARMAN INT IND4 citations73
US10381994B2Aug 13, 2019
Constrained nonlinear parameter estimation for robust nonlinear loudspeaker modeling for the purpose of smart limiting
HARMAN INT IND2 citations72
US10127921B2Nov 13, 2018
Adaptive correction of loudspeaker using recurrent neural network
HARMAN INT IND6 citations72
US10194238B2Jan 29, 2019
Baffle for line array loudspeaker
HARMAN INT IND4 citations70
US7095869B2Aug 22, 2006
Loudspeaker coil suspension system
HARMAN INT IND2 citations63
US7072481B2Jul 4, 2006
Two-stage phasing plug system in a compression driver
HARMAN INT IND3 citations63
US6801634B2Oct 5, 2004
Loudspeaker coil suspension system
HARMAN INT IND3 citations63
US11743633B2Aug 29, 2023
Nonlinear port parameters for vented box modeling of loudspeakers
HARMAN INT IND0 citations62
US11310586B2Apr 19, 2022
Nonlinear port parameters for vented box modeling of loudspeakers
HARMAN INT IND0 citations62
US10715913B2Jul 14, 2020
Neural network-based loudspeaker modeling with a deconvolution filter
HARMAN INT IND1 citations62
US10349195B1Jul 9, 2019
Constrained nonlinear parameter estimation for robust nonlinear loudspeaker modeling for the purpose of smart limiting
HARMAN INT IND1 citations62
US8014555B2Sep 6, 2011
Self-cooling electromagnetic transducer
HARMAN INT IND6 citations61
US10097917B2Oct 9, 2018
System for reducing response anomalies in an acoustic pathway
HARMAN INT IND0 citations52
US10425730B2Sep 24, 2019
Neural network-based loudspeaker modeling with a deconvolution filter
HARMAN INT IND0 citations51
US9860633B2Jan 2, 2018
Baffle for line array loudspeaker
HARMAN INT IND1 citations49
US9820046B2Nov 14, 2017
Compensation of air path distortions using backpropagation
HARMAN INT IND0 citations49
US10536774B2Jan 14, 2020
Constrained nonlinear parameter estimation for robust nonlinear loudspeaker modeling for the purpose of smart limiting
HARMAN INT IND0 citations41