Patents by Inventor James H. James
James H. James has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9412396Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: November 25, 2015Date of Patent: August 9, 2016Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Publication number: 20160078885Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: ApplicationFiled: November 25, 2015Publication date: March 17, 2016Inventors: Bing Chen, James H. James
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Patent number: 9224405Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: March 13, 2015Date of Patent: December 29, 2015Assignee: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Bing Chen, James H. James
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Publication number: 20150187372Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: ApplicationFiled: March 13, 2015Publication date: July 2, 2015Inventors: Bing Chen, James H. James
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Patent number: 9008326Abstract: The performance of an echo canceller is assessed using a) a test signal launched from originating test equipment and b) a simulated echo of the test signal launched from terminating test equipment. The launch of the simulated echo signal is timed in such a way that it arrives at the tandem echo canceller(s) at a particular point in time relative to the arrival of the test signal, at the tandem echo canceller(s), when the tandem echo canceller(s) is (are) not able to cancel the simulated echo signal. The latter thus arrives uncanceled at the target echo canceller. The launch of the simulated echo signal is further timed in such a way that it arrives at the target echo canceller at a point in time relative to the arrival of the test signal, at the target echo canceller, when the target echo canceller is able to cancel the simulated echo signal.Type: GrantFiled: October 15, 2012Date of Patent: April 14, 2015Assignee: AT&T Intellectual Property I, L.P.Inventors: James H. James, Wallace F. Smith, Jr.
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Patent number: 9009034Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: November 12, 2014Date of Patent: April 14, 2015Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Publication number: 20150073782Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Inventors: Bing Chen, James H. James
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Patent number: 8917639Abstract: Embodiments are directed to eliminating false audio using an egress gateway in a communications network. At least one false audio packet is received by an egress gateway. The false audio packet includes false audio. A DTMF packet is received by the egress gateway. The DTMF packet is received subsequent to the at least one false audio packet. The false audio in the false audio packet is replaced with a substitute signal by the egress gateway.Type: GrantFiled: April 10, 2014Date of Patent: December 23, 2014Assignee: AT&T Intellectual Property I, L.P.Inventors: James H. James, Allen Mollica, David Ramsden
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Patent number: 8909519Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: March 10, 2014Date of Patent: December 9, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Publication number: 20140219427Abstract: Embodiments are directed to eliminating false audio using an egress gateway in a communications network. At least one false audio packet is received by an egress gateway. The false audio packet includes false audio. A DTMF packet is received by the egress gateway. The DTMF packet is received subsequent to the at least one false audio packet. The false audio in the false audio packet is replaced with a substitute signal by the egress gateway.Type: ApplicationFiled: April 10, 2014Publication date: August 7, 2014Applicant: AT&T Intellectual Property I, L.P.Inventors: James H. James, Allen Mollica, David Ramsden
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Publication number: 20140195228Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: ApplicationFiled: March 10, 2014Publication date: July 10, 2014Applicant: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Bing Chen, James H. James
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Patent number: 8731184Abstract: Test equipment including a signal generator and a method of generating a test signal associated with an overall frequency band are disclosed. Also disclosed is a method of using the test signal to test an echo canceller. The method of generating the test signal includes generating a first time segment associated with a first frequency sub-band of the overall frequency band and generating a second time segment associated with a second frequency sub-band of the overall frequency band. The second frequency sub-band is higher than the first frequency sub-band. The method further includes generating a time gap segment separating the first time segment and the second time segment.Type: GrantFiled: May 15, 2012Date of Patent: May 20, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Patent number: 8705455Abstract: The present invention is a system and method for packetizing actual noise signals, typically background noise, received by an access gateway from a speaking party and transmitting these packetized noise signals via a network to an egress gateway. The egress gateway converts the packetized noise signal into noise signals suitable for output and transmits the output noise signals to a listening party. When the access gateway detects that no voice signal is being received and only a noise signal is being received for a predetermined period of time, the access gateway instructs the egress network to continually transmit output noise signals to the listening party and ceases to transmit packetized noise signals to the egress gateway.Type: GrantFiled: March 1, 2013Date of Patent: April 22, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: James H. James, Joshua Hal Rosenbluth
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Patent number: 8700390Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: October 7, 2013Date of Patent: April 15, 2014Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Publication number: 20140039886Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: ApplicationFiled: October 7, 2013Publication date: February 6, 2014Applicant: AT&T INTELLECTUAL PROPERTY II, L.P.Inventors: Bing Chen, James H. James
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Patent number: 8577674Abstract: A Voice Activity Detection/Silence Suppression (VAD/SS) system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: December 12, 2012Date of Patent: November 5, 2013Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Patent number: 8391313Abstract: The present invention is a system and method for packetizing actual noise signals, typically background noise, received by an access gateway from a speaking party and transmitting these packetized noise signals via a network to an egress gateway. The egress gateway converts the packetized noise signal into noise signals suitable for output and transmits the output noise signals to a listening party. When the access gateway detects that no voice signal is being received and only a noise signal is being received for a predetermined period of time, the access gateway instructs the egress network to continually transmit output noise signals to the listening party and ceases to transmit packetized noise signals to the egress gateway.Type: GrantFiled: December 28, 2009Date of Patent: March 5, 2013Assignee: AT&T Intellectual Property II, L.P.Inventors: James H James, Joshua Hal Rosenbluth
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Patent number: 8346543Abstract: A VAD/SS system is connected to a channel of a transmission pipe. The channel provides a pathway for the transmission of energy. A method for operating a VAD/SS system includes detecting the energy on the channel, and activating or suppressing activation of the VAD/SS system depending upon the nature of the energy detected on the channel.Type: GrantFiled: March 17, 2011Date of Patent: January 1, 2013Assignee: AT&T Intellectual Property II, L.P.Inventors: Bing Chen, James H. James
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Patent number: 8295501Abstract: The performance of an echo canceller is assessed using a) a test signal launched from originating test equipment and b) a simulated echo of the test signal launched from terminating test equipment. The launch of the simulated echo signal is timed in such a way that it arrives at the tandem echo canceller(s) at a particular point in time relative to the arrival of the test signal, at the tandem echo canceller(s), when the tandem echo canceller(s) is (are) not able to cancel the simulated echo signal. The latter thus arrives uncanceled at the target echo canceller. The launch of the simulated echo signal is further timed in such a way that it arrives at the target echo canceller at a point in time relative to the arrival of the test signal, at the target echo canceller, when the target echo canceller is able to cancel the simulated echo signal.Type: GrantFiled: December 15, 2008Date of Patent: October 23, 2012Assignee: AT&T Intellectual Property I, L.P.Inventors: James H James, Wallace F. Smith, Jr.
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Publication number: 20120230474Abstract: Test equipment including a signal generator and a method of generating a test signal associated with an overall frequency band are disclosed. Also disclosed is a method of using the test signal to test an echo canceller. The method of generating the test signal includes generating a first time segment associated with a first frequency sub-band of the overall frequency band and generating a second time segment associated with a second frequency sub-band of the overall frequency band. The second frequency sub-band is higher than the first frequency sub-band. The method further includes generating a time gap segment separating the first time segment and the second time segment.Type: ApplicationFiled: May 15, 2012Publication date: September 13, 2012Applicant: AT&T CORP.Inventors: Bing Chen, James H. James