David RAMSDEN

Person

Wall, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for measuring processing delays of voice-over IP devices
- Patent number 9,485,352
- Issue date Nov 1, 2016
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for measuring processing delays of voice-over IP devices
- Patent number 9,160,842
- Issue date Oct 13, 2015
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods, apparatus and articles of manufacture to cancel echo for c...
- Patent number 8,938,066
- Issue date Jan 20, 2015
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Eliminating false audio associated with VoIP communications
- Patent number 8,917,639
- Issue date Dec 23, 2014
- AT&T Intellectual Property I, L.P.
- James H. James
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods to measure the performance of a de-jitter buffer
- Patent number 8,755,411
- Issue date Jun 17, 2014
- AT&T Intellectual Property I, L.P.
- Bing Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Eliminating false audio associated with VoIP communications
- Patent number 8,730,852
- Issue date May 20, 2014
- AT&T Intellectual Property I, L.P.
- James James
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods, apparatus and articles of manufacture to detect echo durin...
- Patent number 8,577,019
- Issue date Nov 5, 2013
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for measuring processing delays of voice-over IP devices
- Patent number 8,503,311
- Issue date Aug 6, 2013
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Methods, apparatus and articles of manufacture to cancel echo for c...
- Patent number 8,452,002
- Issue date May 28, 2013
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing echo cancellation in a network
- Patent number 8,391,126
- Issue date Mar 5, 2013
- AT&T Intellectual Property I, L.P.
- James James
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for evaluating adaptive jitter buffer performance
- Patent number 8,125,918
- Issue date Feb 28, 2012
- AT&T Intellectual Property I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods to measure the performance of a de-jitter buffer
- Patent number 8,089,992
- Issue date Jan 3, 2012
- AT&T Intellectual Property I, L.P.
- Bing Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for identifying a fault in a communication path
- Patent number 7,899,639
- Issue date Mar 1, 2011
- AT&T Intellectual Property I, L.P.
- Wallace F. Smith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
End-to-end connection packet loss detection algorithm using power l...
- Patent number 7,602,732
- Issue date Oct 13, 2009
- AT&T Intellectual Property II, L.P.
- Bing Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for identifying echo sources in a communicatio...
- Patent number 7,516,033
- Issue date Apr 7, 2009
- AT&T Intellectual Property I, L.P.
- Wallace F. Smith
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
End-to-end connection packet loss detection algorithm using power l...
- Patent number 7,050,400
- Issue date May 23, 2006
- AT&T Corp.
- Bing Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for making nonintrusive noise and speech level...
- Patent number 6,002,762
- Issue date Dec 14, 1999
- AT&T Corp.
- David Beaumont Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interactive measurement system and method for telecommunication net...
- Patent number 5,875,230
- Issue date Feb 23, 1999
- AT&T Corp.
- John Thomas Ganley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Nonintrusive measurement of echo power and echo path delay present...
- Patent number 5,793,864
- Issue date Aug 11, 1998
- AT&T Corp.
- David Beaumont Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Nonintrusive speech level and dynamic noise measurements
- Patent number 5,216,702
- Issue date Jun 1, 1993
- AT&T Bell Laboratories
- David B. Ramsden
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Method for Measuring Processing Delays of Voice-Over IP Devices
- Publication number 20160014269
- Publication date Jan 14, 2016
- AT&T INTELLECTUAL PROPERTY I, L.P.
- David RAMSDEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELIMINATING FALSE AUDIO ASSOCIATED WITH VoIP COMMUNICATIONS
- Publication number 20140219427
- Publication date Aug 7, 2014
- AT&T INTELLECTUAL PROPERTY I, L.P.
- James H. James
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for Measuring Processing Delays of Voice-Over IP Devices
- Publication number 20130322282
- Publication date Dec 5, 2013
- AT&T INTELLECTUAL PROPERTY I, L.P.
- David RAMSDEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO CANCEL ECHO FOR C...
- Publication number 20130243184
- Publication date Sep 19, 2013
- AT&T INTELLECTUAL PROPERTY I, L.P.
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEMS AND METHODS TO MEASURE THE PERFORMANCE OF A DE-JITTER BUFFER
- Publication number 20120076030
- Publication date Mar 29, 2012
- Bing Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING ECHO CANCELLATION IN A NETWORK
- Publication number 20110149815
- Publication date Jun 23, 2011
- James James
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ELIMINATING FALSE AUDIO ASSOCIATED WITH VoIP COMMUNICATIONS
- Publication number 20110142033
- Publication date Jun 16, 2011
- AT&T Intellectual Property I, L.P.
- James James
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO DETECT ECHO DURIN...
- Publication number 20110096916
- Publication date Apr 28, 2011
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEMS AND METHODS TO MEASURE THE PERFORMANCE OF A DE-JITTER BUFFER
- Publication number 20110075577
- Publication date Mar 31, 2011
- Bing Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO CANCEL ECHO FOR C...
- Publication number 20110069829
- Publication date Mar 24, 2011
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR EVALUATING ADAPTIVE JITTER BUFFER PERFORMANCE
- Publication number 20100142388
- Publication date Jun 10, 2010
- DAVID RAMSDEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for Measuring Processing Delays of Voice-Over IP Devices
- Publication number 20100142513
- Publication date Jun 10, 2010
- David Ramsden
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR IDENTIFYING A FAULT IN A COMMUNICATION PATH
- Publication number 20090161835
- Publication date Jun 25, 2009
- AT&T Intellectual Property I, L.P.
- WALLACE SMITH
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR IDENTIFYING ECHO SOURCES IN A COMMUNICATIO...
- Publication number 20070299622
- Publication date Dec 27, 2007
- SBC Knowledge Ventures, L.P.
- WALLACE SMITH
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

David RAMSDEN

Person

Patents Grantslast 30 patents

Method for measuring processing delays of voice-over IP devices

Method for measuring processing delays of voice-over IP devices

Methods, apparatus and articles of manufacture to cancel echo for c...

Eliminating false audio associated with VoIP communications

Systems and methods to measure the performance of a de-jitter buffer

Eliminating false audio associated with VoIP communications

Methods, apparatus and articles of manufacture to detect echo durin...

Method for measuring processing delays of voice-over IP devices

Methods, apparatus and articles of manufacture to cancel echo for c...

Method and apparatus for providing echo cancellation in a network

Method and apparatus for evaluating adaptive jitter buffer performance

Systems and methods to measure the performance of a de-jitter buffer

Method and apparatus for identifying a fault in a communication path

End-to-end connection packet loss detection algorithm using power l...

Method and apparatus for identifying echo sources in a communicatio...

End-to-end connection packet loss detection algorithm using power l...

Method and apparatus for making nonintrusive noise and speech level...

Interactive measurement system and method for telecommunication net...

Nonintrusive measurement of echo power and echo path delay present...

Nonintrusive speech level and dynamic noise measurements

Patents Applicationslast 30 patents

Method for Measuring Processing Delays of Voice-Over IP Devices

ELIMINATING FALSE AUDIO ASSOCIATED WITH VoIP COMMUNICATIONS

Method for Measuring Processing Delays of Voice-Over IP Devices

METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO CANCEL ECHO FOR C...

SYSTEMS AND METHODS TO MEASURE THE PERFORMANCE OF A DE-JITTER BUFFER

METHOD AND APPARATUS FOR PROVIDING ECHO CANCELLATION IN A NETWORK

ELIMINATING FALSE AUDIO ASSOCIATED WITH VoIP COMMUNICATIONS

METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO DETECT ECHO DURIN...

SYSTEMS AND METHODS TO MEASURE THE PERFORMANCE OF A DE-JITTER BUFFER

METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO CANCEL ECHO FOR C...

METHOD AND APPARATUS FOR EVALUATING ADAPTIVE JITTER BUFFER PERFORMANCE

Method for Measuring Processing Delays of Voice-Over IP Devices

METHOD AND APPARATUS FOR IDENTIFYING A FAULT IN A COMMUNICATION PATH

METHOD AND APPARATUS FOR IDENTIFYING ECHO SOURCES IN A COMMUNICATIO...