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Class Information
Number: 381/73.1
Name: Electrical audio signal processing systems and devices > Sound or noise masking
Description: Subject matter which utilizes sound to reduce the distractive influences of unwanted sound or other audible noise.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8107639 System and method for a sound masking system for networked workstations or offices Jan. 31, 2012
8094829 Method for processing sound data Jan. 10, 2012
8059828 Audio privacy method and system Nov. 15, 2011
8050931 Sound masking system and masking sound generation method Nov. 1, 2011
8043203 Method and device for tinnitus therapy Oct. 25, 2011
8019092 Aural device with white noise generator Sep. 13, 2011
7995214 Apparatus and method for recording the shape of an ear section Aug. 9, 2011
7974714 Intelligent electronic appliance system and method Jul. 5, 2011
7936885 Audio/video reproducing systems, methods and computer program products that modify audio/video electrical signals in response to specific sounds/images May. 3, 2011
RE42093 Active audio compressing in telecommunication Feb. 1, 2011
7877062 Mobile phone and ambient noise filtering method used in the mobile phone Jan. 25, 2011
7854697 Tinnitus rehabilitation device and method Dec. 21, 2010
7813822 Intelligent electronic appliance system and method Oct. 12, 2010
7804964 Device for protecting the hearing from loud MRT sounds Sep. 28, 2010
7787876 Method and system for mobile call testing using contactless ring detection Aug. 31, 2010
7778829 Real time monitoring and control for audio devices Aug. 17, 2010
7736297 Tinnitus rehabilitation device and method Jun. 15, 2010
7697699 Method of and apparatus for reducing noise Apr. 13, 2010
7664274 Enhanced acoustic transmission system and method Feb. 16, 2010
7613307 Active sound reduction apparatus and active noise insulation wall having same Nov. 3, 2009
7599927 Method for searching content particularly for extracts common to two computer files Oct. 6, 2009
7552050 Speech recognition system and method utilizing adaptive cancellation for talk-back voice Jun. 23, 2009
7548854 Architectural sound enhancement with pre-filtered masking sound Jun. 16, 2009
7492911 Noise reducing device Feb. 17, 2009
7471797 Networked sound masking system with centralized sound masking generation Dec. 30, 2008
7460675 Auto-adjusting sound masking system and method Dec. 2, 2008
7457422 Method and implementation for detecting and characterizing audible transients in noise Nov. 25, 2008
7435228 High fidelity hearing restoration Oct. 14, 2008
7352870 Active sound muffler and active sound muffling method Apr. 1, 2008
7302066 Method for eliminating an unwanted signal from a mixture via time-frequency masking Nov. 27, 2007
7260163 Noise blanker using an adaptive all-pole predictor and method therefor Aug. 21, 2007
7231037 Active audio compressing in telecommunication Jun. 12, 2007
7194094 Sound masking system Mar. 20, 2007
7181021 Apparatus for acoustically improving an environment Feb. 20, 2007
7181022 Audio watermarking to convey auxiliary information, and media embodying same Feb. 20, 2007
7106868 Active noise control for vehicle door noise Sep. 12, 2006
7088828 Methods and apparatus for providing privacy for a user of an audio electronic device Aug. 8, 2006
7039478 Method and system for authoring a soundscape for a media application May. 2, 2006
6950526 Sound masking and paging system Sep. 27, 2005
6888945 Personal sound masking system May. 3, 2005
6823176 Audio artifact noise masking Nov. 23, 2004
6816599 Ear level device for synthesizing music Nov. 9, 2004
6798887 Key click masker and method for masking key clicks Sep. 28, 2004
6758304 Tuned Helmholtz resonator using cavity forcing Jul. 6, 2004
6690800 Method and apparatus for communication operator privacy Feb. 10, 2004
6682472 Tinnitus rehabilitation device and method Jan. 27, 2004
6611196 System and method for providing audio augmentation of a physical environment Aug. 26, 2003
6608549 Virtual interface for configuring an audio augmentation system Aug. 19, 2003
6594365 Acoustic system identification using acoustic masking Jul. 15, 2003
6584138 Coding process for inserting an inaudible data signal into an audio signal, decoding process, coder and decoder Jun. 24, 2003

1 2 3 4

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