Ravi Chandran

Person

Naperville, IL, US

People

Patents Grantslast 30 patents

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
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
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
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
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
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
Method and apparatus for scheduling packetized data flows in a cale...
- Patent number 7,167,485
- Issue date Jan 23, 2007
- Tellabs Operations, Inc.
- Terry J. Hrabik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
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
Spectrally interdependent gain adjustment techniques
- Patent number 6,839,666
- Issue date Jan 4, 2005
- Tellabs Operations, Inc.
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Communication system clock synchronization techniques
- Patent number 6,771,590
- Issue date Aug 3, 2004
- Tellabs Operations, Inc.
- Daniel J. Marchok
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Relative noise ratio weighting techniques for adaptive noise cancel...
- Patent number 6,766,292
- Issue date Jul 20, 2004
- Tellabs Operations, Inc.
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Speech presence measurement detection techniques
- Patent number 6,671,667
- Issue date Dec 30, 2003
- Tellabs Operations, Inc.
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and apparatus for adaptively suppressing noise
- Patent number 6,591,234
- Issue date Jul 8, 2003
- Tellabs Operations, Inc.
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Communication system noise cancellation power signal calculation te...
- Patent number 6,529,868
- Issue date Mar 4, 2003
- Tellabs Operations, Inc.
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Spectrally interdependent gain adjustment techniques
- Patent number 6,523,003
- Issue date Feb 18, 2003
- Tellabs Operations, Inc.
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Synchronization of voice boundaries and their use by echo canceller...
- Patent number 6,522,746
- Issue date Feb 18, 2003
- Tellabs Operations, Inc.
- Daniel J. Marchok
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Apparatus and method for clock synchronization in a multi-point OFD...
- Patent number 6,122,246
- Issue date Sep 19, 2000
- Tellabs Operations, Inc.
- Daniel J. Marchok
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

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
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
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
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
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
Communication system tonal component maintenance techniques
- Publication number 20050131678
- Publication date Jun 16, 2005
- Ravi Chandran
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
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
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
Method and apparatus for scheduling packetized data flows in a cale...
- Publication number 20030112750
- Publication date Jun 19, 2003
- Terry J. Hrabik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Synchronization of echo cancellers in a voice processing system
- Publication number 20030053618
- Publication date Mar 20, 2003
- Tellabs Operations, Inc.
- Daniel J. Marchok
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Ravi Chandran

Person

Patents Grantslast 30 patents

Apparatus and method for clock synchronization in a multi-point OFD...

Apparatus and method for clock synchronization in a multi-point OFD...

Communication system tonal component maintenance techniques

Communication system noise cancellation power signal calculation te...

Apparatus and method for clock synchronization in a multi-point OFD...

Apparatus and method for clock synchronization in a multi-point OFD...

Communication system noise cancellation power signal calculation te...

Systems and methods for switching multi-rate communications

Communication system tonal component maintenance techniques

Audio enhancement communication techniques

Synchronization of echo cancellers in a voice processing system

Method and apparatus for scheduling packetized data flows in a cale...

Audio enhancement communication techniques

Communication system noise cancellation power signal calculation te...

Synchronization of echo cancellers in a voice processing system

Spectrally interdependent gain adjustment techniques

Communication system clock synchronization techniques

Relative noise ratio weighting techniques for adaptive noise cancel...

Speech presence measurement detection techniques

Method and apparatus for adaptively suppressing noise

Communication system noise cancellation power signal calculation te...

Spectrally interdependent gain adjustment techniques

Synchronization of voice boundaries and their use by echo canceller...

Apparatus and method for clock synchronization in a multi-point OFD...

Patents Applicationslast 30 patents

APPARATUS AND METHOD FOR CLOCK SYNCHRONIZATION IN A MULTI-POINT OFD...

Apparatus and method for clock synchronization in a multi-point OFD...

Communication system tonal component maintenance techniques

COMMUNICATION SYSTEM NOISE CANCELLATION POWER SIGNAL CALCULATION TE...

SYSTEMS AND METHODS FOR SWITCHING MULTI-RATE COMMUNICATIONS

Apparatus and method for clock synchronization in a multi-point OFD...

Audio enhancement communication techniques

Communication system noise cancellation power signal calculation te...

Synchronization of echo cancellers in a voice processing system

Communication system tonal component maintenance techniques

Apparatus and method for clock synchronization in a multi-point OFD...

Systems and methods for switching multi-rate communications

Communication system noise cancellation power signal calculation te...

Audio enhancement communication techniques

Spectrally interdependent gain adjustment techniques

Method and apparatus for scheduling packetized data flows in a cale...

Synchronization of echo cancellers in a voice processing system