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David Giesbrecht
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Vancouver, CA
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Patents Grants
last 30 patents
Information
Patent Grant
Noise reduction using direction-of-arrival information
Patent number
9,443,532
Issue date
Sep 13, 2016
QSOUND LABS, INC.
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
System for adaptive enhancement of speech signals
Patent number
8,566,086
Issue date
Oct 22, 2013
QNX Software Systems Limited
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Frequency extension of harmonic signals
Patent number
8,311,840
Issue date
Nov 13, 2012
QNX Software Systems Limited
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Reverberation estimation and suppression system
Patent number
8,284,947
Issue date
Oct 9, 2012
QNX Software Systems Limited
David Giesbrecht
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Periodic signal enhancement system
Patent number
8,170,879
Issue date
May 1, 2012
QNX Software Systems Limited
Rajeev Nongpiur
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Automated emergency detection and response
Patent number
8,063,764
Issue date
Nov 22, 2011
Toronto Rehabilitation Institute
Alex Mihailidis
G08 - SIGNALLING
Information
Patent Grant
System for limiting receive audio
Patent number
7,894,598
Issue date
Feb 22, 2011
Nuance Communications, Inc.
Gerhard Uwe Schmidt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Periodic signal enhancement system
Patent number
7,680,652
Issue date
Mar 16, 2010
QNX Software Systems (Wavemakers), Inc.
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Periodic signal enhancement system
Patent number
7,610,196
Issue date
Oct 27, 2009
QNX Software Systems (Wavemakers), Inc.
Rajeev Nongpiur
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
MULTI-MICROPHONE NOISE REDUCTION USING ENHANCED REFERENCE NOISE SIGNAL
Publication number
20140037100
Publication date
Feb 6, 2014
QSound Labs, Inc.
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
NOISE REDUCTION USING DIRECTION-OF-ARRIVAL INFORMATION
Publication number
20140023199
Publication date
Jan 23, 2014
QSound Labs, Inc.
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
NOISE REDUCTION USING MICROPHONE ARRAY ORIENTATION INFORMATION
Publication number
20130121498
Publication date
May 16, 2013
QSound Labs, Inc.
David Giesbrecht
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Frequency extension of harmonic signals
Publication number
20060293016
Publication date
Dec 28, 2006
HARMAN BECKER AUTOMOTIVE SYSTEMS, WAVEMAKERS, INC.
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
System and method for adaptive enhancement of speech signals
Publication number
20060293882
Publication date
Dec 28, 2006
Harman Becker Automotive Systems-Wavemakers, Inc.
David Giesbrecht
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
System for limiting receive audio
Publication number
20060126822
Publication date
Jun 15, 2006
Gerhard Uwe Schmidt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Reverberation estimation and suppression system
Publication number
20060115095
Publication date
Jun 1, 2006
Harman Becker Automotive Systems-Wavemakers, Inc.
David Giesbrecht
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Periodic signal enhancement system
Publication number
20060098809
Publication date
May 11, 2006
Harman Becker Automotive Systems-Wavemakers, Inc.
Rajeev Nongpiur
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Periodic signal enhancement system
Publication number
20060089958
Publication date
Apr 27, 2006
Harman Becker Automotive Systems-Wavemakers, Inc.
David Giesbrecht
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Periodic signal enhancement system
Publication number
20060089959
Publication date
Apr 27, 2006
Harman Becker Automotive Systems-Wavemakers, Inc.
Rajeev Nongpiur
G10 - MUSICAL INSTRUMENTS ACOUSTICS