Patents by Inventor James C. H. Thi

James C. H. Thi 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).

  • Patent number: 8750493
    Abstract: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaptation is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: June 10, 2014
    Assignee: Broadcom Corporation
    Inventors: James C. H. Thi, Theodore F. Rabenko
  • Patent number: 8718091
    Abstract: A method and system of processing sampled voice packets from a voice packet sender for transmission over a bit-rate sampled data transmission system, such as by a cable modem over a cable modem termination system, to a voice packet recipient. Unsolicited grant arrivals in response to a request from the voice packet sender coupled to the cable modem are determined. The storing of sampled voice packets is synchronized with the unsolicited grant arrivals. Upon receipt of an unsolicited grant arrival, currently stored sampled voice packets are transmitted to the cable modem for further transmission to the voice packet recipient over the cable modem termination system.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: May 6, 2014
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton, Jr.
  • Publication number: 20130236004
    Abstract: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaptation is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Application
    Filed: April 29, 2013
    Publication date: September 12, 2013
    Applicant: Broadcom Corporation
    Inventors: James C.H. Thi, Theodore F. Rabenko
  • Patent number: 8433060
    Abstract: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaption is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: April 30, 2013
    Assignee: Broadcom Corporation
    Inventors: James C. H. Thi, Theodore F. Rabenko
  • Patent number: 8254404
    Abstract: In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: August 28, 2012
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, David Hartman, James C. H. Thi
  • Publication number: 20100309935
    Abstract: A method and system of processing sampled voice packets from a voice packet sender for transmission over a bit-rate sampled data transmission system, such as by a cable modem over a cable modem termination system, to a voice packet recipient. Unsolicited grant arrivals in response to a request from the voice packet sender coupled to the cable modem are determined. The storing of sampled voice packets is synchronized with the unsolicited grant arrivals. Upon receipt of an unsolicited grant arrival, currently stored sampled voice packets are transmitted to the cable modem for further transmission to the voice packet recipient over the cable modem termination system.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 9, 2010
    Applicant: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C.H. Thi, John D. Horton, JR.
  • Publication number: 20100266118
    Abstract: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaption is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 21, 2010
    Applicant: Broadcom Corporation
    Inventors: James C.H. THI, Theodore F. Rabenko
  • Patent number: 7801176
    Abstract: A method and system of processing sampled voice packets from a voice packet sender for transmission over a bit-rate sampled data transmission system, such as by a cable modem over a cable modem termination system, to a voice packet recipient. Unsolicited grant arrivals in response to a request from the voice packet sender coupled to the cable modem are determined. The storing of sampled voice packets is synchronized with the unsolicited grant arrivals. Upon receipt of an unsolicited grant arrival, currently stored sampled voice packets are transmitted to the cable modem for further transmission to the voice packet recipient over the cable modem termination system.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: September 21, 2010
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton, Jr.
  • Publication number: 20100191525
    Abstract: In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation.
    Type: Application
    Filed: October 16, 2009
    Publication date: July 29, 2010
    Applicant: Broadcom Corporation
    Inventors: Theodore F. RABENKO, David Hartman, James C.H. Thi
  • Patent number: 7747002
    Abstract: An exemplary embodiment of the present invention is directed toward a method and system for cancelling line echo in the presence of a known secondary audio signal. Filter adaption is enabled in the presence of a known secondary audio source such as the sound of a computer game, a music signal or other secondary audio sources that would otherwise prevent echo cancellation due to an apparent double talk condition. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: June 29, 2010
    Assignee: Broadcom Corporation
    Inventors: James C. H. Thi, Theodore F. Rabenko
  • Patent number: 7701954
    Abstract: In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: April 20, 2010
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, David Hartman, James C. H. Thi
  • Patent number: 7190704
    Abstract: A method for communicating information is disclosed wherein a time slot is allocated in a time division multiple access system for a transmission from a subscriber to a headend. Synchronization of a clock of the subscriber with respect to a clock of the headend is enhanced using a message transmitted from the headend to the subscriber which is indicative of an error in a subscriber transmission time with respect to the time slot. A feedback loop process is used to determine at least one of fractional symbol timing correction and carrier phase correction of a transmission from the subscriber to the headend. Filter coefficients are generated at the headend from a ranging signal transmitted from the subscriber to the headend and transmitting the filter coefficients from the headend to the subscriber, the filter coefficients being used by the subscriber to compensate for noise in a transmission from the subscriber to the headend.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: March 13, 2007
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton, Jr., Thomas J. Quigley, Lisa V. Denney, Jonathan S. Min, Christopher R. Jones, Henry Samueli, Fang Lu, Feng Chen, Sean F. Nazareth
  • Patent number: 7023868
    Abstract: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, a voice synchronizer, an Ethernet MAC, and a USB controller to provide high performance and robust operation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: April 4, 2006
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, David Hartman, James C. H. Thi
  • Patent number: 6996128
    Abstract: A method and system of processing sampled voice packets from a voice packet sender for transmission over a bit-rate sampled data transmission system, such as by a cable modem over a cable modem termination system, to a voice packet recipient. Unsolicited grant arrivals in response to a request from the voice packet sender coupled to the cable modem are determined. The storing of sampled voice packets is synchronized with the unsolicited grant arrivals. Upon receipt of an unsolicited grant arrival, currently stored sampled voice packets are transmitted to the cable modem for further transmission to the voice packet recipient over the cable modem termination system.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: February 7, 2006
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton, Jr.
  • Patent number: 6985492
    Abstract: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: January 10, 2006
    Assignee: Broadcom Corporation
    Inventors: James C. H. Thi, David Hartman, Theodore F. Rabenko
  • Patent number: 6912209
    Abstract: A network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: June 28, 2005
    Assignee: Broadcom Corporation
    Inventors: James C. H. Thi, David Hartman
  • Patent number: 6834057
    Abstract: A method of processing sampled voice packets from a voice packet sender for transmission over a bit-rate sampled data transmission system, such as by a cable modem over a cable modem termination system, to a voice packet recipient. Unsolicited grant arrivals in response to a request from the voice packet sender coupled to the cable modem are determined. The storing of sampled voice packets is synchronized with the unsolicited grant arrivals. Upon receipt of an unsolicited grant arrival, currently stored sampled voice packets are transmitted to the cable modem for further transmission to the voice packet recipient over the cable modem termination system.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: December 21, 2004
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton, Jr.
  • Publication number: 20040252678
    Abstract: A method of processing sampled voice packets from a voice packet sender for transmission over a bit-rate sampled data transmission system, such as by a cable modem over a cable modem termination system, to a voice packet recipient. Unsolicited grant arrivals in response to a request from the voice packet sender coupled to the cable modem are determined. The storing of sampled voice packets is synchronized with the unsolicited grant arrivals. Upon receipt of an unsolicited grant arrival, currently stored sampled voice packets are transmitted to the cable modem for further transmission to the voice packet recipient over the cable modem termination system.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 16, 2004
    Applicant: BROADCOM CORPORATION
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton
  • Publication number: 20040163120
    Abstract: A method for communicating information is disclosed wherein a time slot is allocated in a time division multiple access system for a transmission from a subscriber to a headend. Synchronization of a clock of the subscriber with respect to a clock of the headend is enhanced using a message transmitted from the headend to the subscriber which is indicative of an error in a subscriber transmission time with respect to the time slot. A feedback loop process is used to determine at least one of fractional symbol timing correction and carrier phase correction of a transmission from the subscriber to the headend. Filter coefficients are generated at the headend from a ranging signal transmitted from the subscriber to the headend and transmitting the filter coefficients from the headend to the subscriber, the filter coefficients being used by the subscriber to compensate for noise in a transmission from the subscriber to the headend.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Applicant: Broadcom Corporation
    Inventors: Theodore F. Rabenko, James C. H. Thi, John D. Horton, Thomas J. Quigley, Lisa V. Denney, Jonathan S. Min, Christopher R. Jones, Henry Samueli, Fang Lu, Feng Chen, Sean F. Nazareth
  • Patent number: 6765931
    Abstract: In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with far end data termination devices via a hybrid fiber coaxial network and a cable modem termination system. The described network gateway combines a QAM receiver, a transmitter, a DOCSIS MAC, a CPU, a voice and audio processor, an Ethernet MAC, and a USB controller to provide high performance and robust operation.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: July 20, 2004
    Assignee: Broadcom Corporation
    Inventors: Theodore F. Rabenko, David Hartman, James C. H. Thi