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Patent Assignment Details

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Reel/Frame:	035837/0052			Pages:	6
		Recorded:	06/15/2015
Attorney Dkt #:	ACOUSTIC MERGER
Conveyance:	MERGER (SEE DOCUMENT FOR DETAILS).

Total properties: 38

Patent #:	5412734	Issue Dt:	05/02/1995	Application #:	08120187	Filing Dt:	09/13/1993
Title:	APPARATUS AND METHOD FOR REDUCING ACOUSTIC FEEDBACK

Patent #:	5649019	Issue Dt:	07/15/1997	Application #:	08432094	Filing Dt:	05/01/1995
Title:	DIGITAL APPARATUS FOR REDUCING ACOUSTIC FEEDBACK

Patent #:	6111957	Issue Dt:	08/29/2000	Application #:	09109847	Filing Dt:	07/02/1998
Title:	APPARATUS AND METHOD FOR ADJUSTING AUDIO EQUIPMENT IN ACOUSTIC ENVIRONMENTS

Patent #:	6252967	Issue Dt:	06/26/2001	Application #:	09234731	Filing Dt:	01/21/1999
Title:	REDUCING ACOUSTIC FEEDBACK WITH DIGITAL MODULATION

Patent #:	6798881	Issue Dt:	09/28/2004	Application #:	09326864	Filing Dt:	06/07/1999
Publication #:	US20010040963	Pub Dt:	11/15/2001
Title:	NOISE REDUCTION CIRCUIT FOR TELEPHONES

Patent #:	6625286	Issue Dt:	09/23/2003	Application #:	09336008	Filing Dt:	06/18/1999
Title:	PRECISE AMPLITUDE CORRECTION CIRCUIT

Patent #:	6421443	Issue Dt:	07/16/2002	Application #:	09360211	Filing Dt:	07/23/1999
Title:	ACOUSTIC AND ELECTRONIC ECHO CANCELLATION

Patent #:	6166573	Issue Dt:	12/26/2000	Application #:	09361014	Filing Dt:	07/23/1999
Title:	HIGH RESOLUTION DELAY LINE

Patent #:	6255877	Issue Dt:	07/03/2001	Application #:	09401348	Filing Dt:	09/21/1999
Title:	WIDE RANGE, VARIABLE PHASE SHIFT CIRCUIT

Patent #:	6278785	Issue Dt:	08/21/2001	Application #:	09401349	Filing Dt:	09/21/1999
Title:	ECHO CANCELLING PROCESS WITH IMPROVED PHASE CONTROL

Patent #:	6301364	Issue Dt:	10/09/2001	Application #:	09413675	Filing Dt:	10/06/1999
Title:	TAGGING ECHOES WITH LOW FREQUENCY NOISE

Patent #:	6608898	Issue Dt:	08/19/2003	Application #:	09413677	Filing Dt:	10/06/1999
Title:	BAND PASS AND NOTCH FILTERS FOR ECHO REDUCTION WITH LESS PHASE DISTORTION

Patent #:	6891809	Issue Dt:	05/10/2005	Application #:	09435374	Filing Dt:	11/05/1999
Title:	BACKGROUND COMMUNICATION USING SHADOW OF AUDIO SIGNAL

Patent #:	6268766	Issue Dt:	07/31/2001	Application #:	09466313	Filing Dt:	12/17/1999
Title:	BAND PASS FILTER FROM TWO NOTCH FILTERS

Patent #:	6963642	Issue Dt:	11/08/2005	Application #:	09476468	Filing Dt:	12/30/1999
Title:	BAND-BY-BAND FULL DUPLEX COMMUNICATION

Patent #:	6931124	Issue Dt:	08/16/2005	Application #:	09482229	Filing Dt:	01/13/2000
Title:	SOFT MUTE CIRCUIT

Patent #:	6404278	Issue Dt:	06/11/2002	Application #:	09482293	Filing Dt:	01/13/2000
Publication #:	US20020000875	Pub Dt:	01/03/2002
Title:	SEPARATION OF PLURAL BAND PASS FILTERS

Patent #:	6492865	Issue Dt:	12/10/2002	Application #:	09491998	Filing Dt:	01/26/2000
Title:	BAND PASS FILTER FROM TWO FILTERS

Patent #:	6404279	Issue Dt:	06/11/2002	Application #:	09492015	Filing Dt:	01/26/2000
Publication #:	US20020000874	Pub Dt:	01/03/2002
Title:	BAND PASS FILTER WITH IMPROVED GROUP DELAY

Patent #:	7046792	Issue Dt:	05/16/2006	Application #:	09803551	Filing Dt:	03/09/2001
Publication #:	US20020126836	Pub Dt:	09/12/2002
Title:	TRANSMIT/RECEIVE ARBITRATOR

Patent #:	7295976	Issue Dt:	11/13/2007	Application #:	10056826	Filing Dt:	01/25/2002
Publication #:	US20030142831	Pub Dt:	07/31/2003
Title:	VOICE ACTIVITY DETECTOR FOR TELEPHONE

Patent #:	6847930	Issue Dt:	01/25/2005	Application #:	10057104	Filing Dt:	01/25/2002
Publication #:	US20030142812	Pub Dt:	07/31/2003
Title:	ANALOG VOICE ACTIVITY DETECTOR FOR TELEPHONE

Patent #:	6754337	Issue Dt:	06/22/2004	Application #:	10057160	Filing Dt:	01/25/2002
Publication #:	US20030142813	Pub Dt:	07/31/2003
Title:	TELEPHONE HAVING FOUR VAD CIRCUITS

Patent #:	6904146	Issue Dt:	06/07/2005	Application #:	10138615	Filing Dt:	05/03/2002
Publication #:	US20030206624	Pub Dt:	11/06/2003
Title:	FULL DUPLEX ECHO CANCELLING CIRCUIT

Patent #:	6928160	Issue Dt:	08/09/2005	Application #:	10215959	Filing Dt:	08/09/2002
Publication #:	US20040028217	Pub Dt:	02/12/2004
Title:	ESTIMATING BULK DELAY IN A TELEPHONE SYSTEM

Patent #:	6990194	Issue Dt:	01/24/2006	Application #:	10441724	Filing Dt:	05/19/2003
Publication #:	US20040234069	Pub Dt:	11/25/2004
Title:	DYNAMIC BALANCE CONTROL FOR TELEPHONE

Patent #:	7570937	Issue Dt:	08/04/2009	Application #:	10645360	Filing Dt:	08/21/2003
Publication #:	US20050041798	Pub Dt:	02/24/2005
Title:	COMFORT NOISE GENERATOR

Patent #:	7031461	Issue Dt:	04/18/2006	Application #:	10756227	Filing Dt:	01/12/2004
Publication #:	US20050152534	Pub Dt:	07/14/2005
Title:	ROBUST ADAPTIVE FILTER FOR ECHO CANCELLATION

Patent #:	7492889	Issue Dt:	02/17/2009	Application #:	10830652	Filing Dt:	04/23/2004
Publication #:	US20050240401	Pub Dt:	10/27/2005
Title:	NOISE SUPPRESSION BASED ON BARK BAND WIENER FILTERING AND MODIFIED DOBLINGER NOISE ESTIMATE

Patent #:	7649988	Issue Dt:	01/19/2010	Application #:	10868989	Filing Dt:	06/15/2004
Publication #:	US20050278171	Pub Dt:	12/15/2005
Title:	COMFORT NOISE GENERATOR USING MODIFIED DOBLINGER NOISE ESTIMATE

Patent #:	7454010	Issue Dt:	11/18/2008	Application #:	10979969	Filing Dt:	11/03/2004
Title:	NOISE REDUCTION AND COMFORT NOISE GAIN CONTROL USING BARK BAND WEINER FILTER AND LINEAR ATTENUATION

Patent #:	7555117	Issue Dt:	06/30/2009	Application #:	11180004	Filing Dt:	07/12/2005
Publication #:	US20070025282	Pub Dt:	02/01/2007
Title:	PATH CHANGE DETECTOR FOR ECHO CANCELLATION

Patent #:	8126706	Issue Dt:	02/28/2012	Application #:	11298865	Filing Dt:	12/09/2005
Publication #:	US20070136053	Pub Dt:	06/14/2007
Title:	MUSIC DETECTOR FOR ECHO CANCELLATION AND NOISE REDUCTION

Patent #:	8538008	Issue Dt:	09/17/2013	Application #:	12313622	Filing Dt:	11/21/2008
Publication #:	US20100128868	Pub Dt:	05/27/2010
Title:	Acoustic echo canceler using an accelerometer

Patent #:	8565446	Issue Dt:	10/22/2013	Application #:	12657002	Filing Dt:	01/12/2010
Title:	ESTIMATING DIRECTION OF ARRIVAL FROM PLURAL MICROPHONES

Patent #:	8565414	Issue Dt:	10/22/2013	Application #:	12930171	Filing Dt:	12/30/2010
Publication #:	US20110150210	Pub Dt:	06/23/2011
Title:	DISTRIBUTED VAD CONTROL SYSTEM FOR TELEPHONE

Patent #:	10015589	Issue Dt:	07/03/2018	Application #:	13199593	Filing Dt:	09/02/2011
Title:	Controlling speech enhancement algorithms using near-field spatial statistics

Patent #:	9674626	Issue Dt:	06/06/2017	Application #:	14454576	Filing Dt:	08/07/2014
Title:	Apparatus and Method for Measuring Relative Frequency Response of Audio Device Microphones

Assignor

ACOUSTIC TECHNOLOGIES, INC.

Exec Dt:

06/04/2015

Assignee

CIRRUS LOGIC INC.

800 W. 6TH STREET

AUSTIN, TEXAS 78701

Correspondence name and address
	STEVEN LIN
	CIRRUS LOGIC INC.
	800 W. 6TH STREET
	AUSTIN, TX 78701

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