QSOUND LABS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G10L SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION 196
 
  
 
H04H BROADCAST COMMUNICATION 154
 
  
 
H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS 1106
 
  
 
H04S STEREOPHONIC SYSTEMS 130

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9443532 Noise reduction using direction-of-arrival informationJul 23, 13Sep 13, 16[G10L, H04R]
5974153 Method and system for sound expansionMay 19, 97Oct 26, 99[H04R, H04H]
5774556 Stereo enhancement system including sound localization filtersAug 07, 95Jun 30, 98[H04S]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0037,100 MULTI-MICROPHONE NOISE REDUCTION USING ENHANCED REFERENCE NOISE SIGNALAbandonedAug 05, 13Feb 06, 14[G10K]
2013/0121,498 NOISE REDUCTION USING MICROPHONE ARRAY ORIENTATION INFORMATIONAbandonedNov 11, 11May 16, 13[H04B, H04R]
2013/0083,948 AUTOMATIC AUDIO SWEET SPOT CONTROLAbandonedOct 04, 11Apr 04, 13[H04R]
2006/0182,284 System and method for processing audio data for narrow geometry speakersAbandonedFeb 15, 05Aug 17, 06[H04R]
7003119 Matrix surround decoder/virtualizerExpiredMar 31, 99Feb 21, 06[H04R]
6421446 Apparatus for creating 3D audio imaging over headphones using binaural synthesis including elevationExpiredDec 11, 98Jul 16, 02[H04R]
6236730 Full sound enhancement using multi-input sound signalsExpiredMay 19, 97May 22, 01[H04R]
6198826 Qsound surround synthesis from stereoExpiredApr 09, 98Mar 06, 01[H04R]
6195434 Apparatus for creating 3D audio imaging over headphones using binaural synthesisExpiredSep 11, 98Feb 27, 01[H04R]
5870481 Method and apparatus for localization enhancement in hearing aidsExpiredSep 25, 96Feb 09, 99[H04R]
5838800 Apparatus for enhancing stereo effect with central sound image maintenance circuitExpiredDec 11, 95Nov 17, 98[H04R]
5809149 Apparatus for creating 3D audio imaging over headphones using binaural synthesisExpiredSep 25, 96Sep 15, 98[H04S]
5371799 Stereo headphone sound source localization systemExpiredJun 01, 93Dec 06, 94[H04R]

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