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Daniel J. Marchok
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Buchanan, MI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Filter for impulse response shortening with additional spectral con...
Patent number
9,014,250
Issue date
Apr 21, 2015
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for interference suppression in orthogonal fre...
Patent number
8,934,457
Issue date
Jan 13, 2015
Tellabs Operations, Inc.
Samir Kapoor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for clock synchronization in a multi-point OFD...
Patent number
8,665,859
Issue date
Mar 4, 2014
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM/DMT/ digital communications system including partial sequence...
Patent number
8,547,823
Issue date
Oct 1, 2013
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time-domain equalization for discrete multi-tone systems
Patent number
8,315,299
Issue date
Nov 20, 2012
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM/DMT/digital communications system including partial sequence s...
Patent number
8,243,583
Issue date
Aug 14, 2012
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for clock synchronization in a multi-point OFD...
Patent number
8,139,471
Issue date
Mar 20, 2012
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Spectrally constrained impulse shortening filter for a discrete mul...
Patent number
8,102,928
Issue date
Jan 24, 2012
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for interference suppression in orthogonal fre...
Patent number
8,050,288
Issue date
Nov 1, 2011
Tellabs Operations, Inc.
Samir Kapoor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system tonal component maintenance techniques
Patent number
8,031,861
Issue date
Oct 4, 2011
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Communication system noise cancellation power signal calculation te...
Patent number
7,957,965
Issue date
Jun 7, 2011
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Time-domain equalization for discrete multi-tone systems
Patent number
7,916,801
Issue date
Mar 29, 2011
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
OFDM/DMT/digital communications system including partial sequence s...
Patent number
7,898,935
Issue date
Mar 1, 2011
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for clock synchronization in a multi-point OFD...
Patent number
7,616,553
Issue date
Nov 10, 2009
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for clock synchronization in a multi-point OFD...
Patent number
7,613,102
Issue date
Nov 3, 2009
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time domain equalization for discrete multi-tone systems
Patent number
7,440,498
Issue date
Oct 21, 2008
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Spectrally constrained impulse shortening filter for a discrete mul...
Patent number
7,430,242
Issue date
Sep 30, 2008
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system noise cancellation power signal calculation te...
Patent number
7,424,424
Issue date
Sep 9, 2008
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Systems and methods for switching multi-rate communications
Patent number
7,397,827
Issue date
Jul 8, 2008
Tellabs Operations, Inc.
Terrence J. Tanis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system tonal component maintenance techniques
Patent number
7,366,294
Issue date
Apr 29, 2008
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Audio enhancement communication techniques
Patent number
7,362,811
Issue date
Apr 22, 2008
Tellabs Operations, Inc.
Bruce E. Dunne
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Spectrally constrained impulse shortening filter for a discrete mul...
Patent number
7,254,178
Issue date
Aug 7, 2007
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Synchronization of echo cancellers in a voice processing system
Patent number
7,236,586
Issue date
Jun 26, 2007
Tellabs Operations, Inc.
Daniel J. Marchok
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Audio enhancement communication techniques
Patent number
7,158,572
Issue date
Jan 2, 2007
Tellabs Operations, Inc.
Bruce E. Dunne
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Communication system noise cancellation power signal calculation te...
Patent number
7,096,182
Issue date
Aug 22, 2006
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Consolidated voice activity detection and noise estimation
Patent number
7,039,181
Issue date
May 2, 2006
Tellabs Operations, Inc.
Daniel Marchok
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Synchronization of echo cancellers in a voice processing system
Patent number
7,003,097
Issue date
Feb 21, 2006
Tellabs Operations, Inc.
Daniel J. Marchok
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Apparatus and method for symbol alignment in a multi-point OFDM/DMT...
Patent number
6,950,388
Issue date
Sep 27, 2005
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital communication transmission techniques
Patent number
6,912,194
Issue date
Jun 28, 2005
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Spectrally interdependent gain adjustment techniques
Patent number
6,839,666
Issue date
Jan 4, 2005
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
Method And Apparatus For Interference Suppression In Orthogonal Fre...
Publication number
20160181693
Publication date
Jun 23, 2016
Tellabs Operations, Inc.
Samir Kapoor
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
APPARATUS AND METHOD FOR SYMBOL ALIGNMENT IN A MULTI-POINT OFDM/DMT...
Publication number
20140112402
Publication date
Apr 24, 2014
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Filter For Impulse Response Shortening With Additional Spectral Con...
Publication number
20130208778
Publication date
Aug 15, 2013
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
APPARATUS AND METHOD FOR CLOCK SYNCHRONIZATION IN A MULTI-POINT OFD...
Publication number
20120219044
Publication date
Aug 30, 2012
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Spectrally constrained impulse shortening filter for a discrete mul...
Publication number
20120183034
Publication date
Jul 19, 2012
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method And Apparatus For Interference Suppression In Orthogonal Fre...
Publication number
20120134435
Publication date
May 31, 2012
Tellabs Operations, Inc.
Samir Kapoor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TIME-DOMAIN EQUALIZATION FOR DISCRETE MULTI-TONE SYSTEMS
Publication number
20110293053
Publication date
Dec 1, 2011
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OFDM/DMT/DIGITAL COMMUNICATIONS SYSTEM INCLUDING PARTIAL SEQUENCE S...
Publication number
20110116571
Publication date
May 19, 2011
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for clock synchronization in a multi-point OFD...
Publication number
20100104035
Publication date
Apr 29, 2010
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication system tonal component maintenance techniques
Publication number
20090129582
Publication date
May 21, 2009
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
COMMUNICATION SYSTEM NOISE CANCELLATION POWER SIGNAL CALCULATION TE...
Publication number
20090024387
Publication date
Jan 22, 2009
Tellabs Operations, Inc.
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
SPECTRALLY CONSTRAINED IMPULSE SHORTENING FILTER FOR A DISCRETE MUL...
Publication number
20090022216
Publication date
Jan 22, 2009
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for symbol alignment in a multi-point OFDM/DMT...
Publication number
20080298483
Publication date
Dec 4, 2008
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SYSTEMS AND METHODS FOR SWITCHING MULTI-RATE COMMUNICATIONS
Publication number
20080259963
Publication date
Oct 23, 2008
Tellabs Operations, Inc.
Terrence J. Tanis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OFDM/DMT/digital communications system including partial sequence s...
Publication number
20080144487
Publication date
Jun 19, 2008
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for clock synchronization in a multi-point OFD...
Publication number
20080144731
Publication date
Jun 19, 2008
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SPECTRALLY CONSTRAINED IMPULSE SHORTENING FILTER FOR A DISCRETE MUL...
Publication number
20070230562
Publication date
Oct 4, 2007
Tellabs Operations, Inc.
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Audio enhancement communication techniques
Publication number
20070064817
Publication date
Mar 22, 2007
Tellabs Operations, Inc.
Bruce E. Dunne
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication system noise cancellation power signal calculation te...
Publication number
20060247923
Publication date
Nov 2, 2006
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Synchronization of echo cancellers in a voice processing system
Publication number
20060098808
Publication date
May 11, 2006
Tellabs Operations, Inc.
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for symbol alignment in a multi-point OFDM/DMT...
Publication number
20060034166
Publication date
Feb 16, 2006
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Time domain equalization for discrete multi-tone systems
Publication number
20040258146
Publication date
Dec 23, 2004
Tellabs Operations, Inc., a Delaware corporation
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OFDM/DMT/ digital communications system including partial sequence...
Publication number
20040246890
Publication date
Dec 9, 2004
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Apparatus and method for clock synchronization in a multi-point OFD...
Publication number
20040184484
Publication date
Sep 23, 2004
Daniel J. Marchok
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Systems and methods for switching multi-rate communications
Publication number
20040120360
Publication date
Jun 24, 2004
Terrence J. Tanis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Spectrally constrained impulse shortening filter for a discrete mul...
Publication number
20040091056
Publication date
May 13, 2004
Tellabs Operations, Inc. a Delaware corporation
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication system noise cancellation power signal calculation te...
Publication number
20030220786
Publication date
Nov 27, 2003
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Audio enhancement communication techniques
Publication number
20030152152
Publication date
Aug 14, 2003
Bruce E. Dunne
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Spectrally interdependent gain adjustment techniques
Publication number
20030135364
Publication date
Jul 17, 2003
Ravi Chandran
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Time domain equalization for discrete multi-tone systems
Publication number
20030128752
Publication date
Jul 10, 2003
Tellabs Operations, Inc. a Delaware corporation
Gopal Harikumar
H04 - ELECTRIC COMMUNICATION TECHNIQUE