Patents by Inventor Katherine Kwan

Katherine Kwan 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).

  • Efficient buffer allocation for current and predicted active speakers in voice conferencing systems
    Publication number: 20050025073
    Abstract: A method and computer program product allows for the efficient allocation of buffers (e.g., first-in first-out (FIFO) queues) for current and predicted active speakers in voice conferencing systems. The method and computer program product, implemented by a server hosting an audio conference for a plurality of speakers, minimizes the loss of audio data for speakers as they switch from “non-active” to “active” status. This is accomplished by employing a set of active speaker buffers and a set of predicted active speaker buffers. The predicted active speaker buffers maintain a collection of the most recent x packets or m milliseconds of “non-active” speaker audio data, and transfer a portion of the data from the predicted active speaker buffers to the active speaker buffers as speakers become “active” speakers.
    Type: Application
    Filed: April 26, 2004
    Publication date: February 3, 2005
    Inventor: Katherine Kwan
  • Deblocking filter for encoder/decoder arrangement and method with divergence reduction
    Patent number: 6404361
    Abstract: According to one aspect of the disclosure, the present invention provides methods and arrangements for the removal or reduction of divergence artifacts between a transmitting codec and a receiving codec. One of a number of implementations includes using a deblocking filter in an inverse transformer loop and selectively disabling the filter upon certain conditions.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: June 11, 2002
    Assignee: Netergy Microelectronics, Inc.
    Inventors: Barry D. Andrews, Stephane Bryant, May Shu-Pei Chiang, Ruili Hu, Katherine Kwan, Paul Ning, Paul A. Voois, Bryan R. Martin
  • Deblocking filter for encoder/decoder arrangement and method with divergence reduction
    Publication number: 20010020906
    Abstract: According to one aspect of the disclosure, the present invention provides methods and arrangements for the removal or reduction of divergence artifacts between a transmitting codec and a receiving codec. One of a number of implementations includes using a deblocking filter in an inverse transformer loop and selectively disabling the filter upon certain conditions.
    Type: Application
    Filed: December 11, 2000
    Publication date: September 13, 2001
    Inventors: Barry D. Andrews, Stephane Bryant, May Shu-Pei Chiang, Ruili Hu, Katherine Kwan, Paul Ning, Paul A. Voois, Bryan R. Martin
  • Deblocking filter for encoder/decoder arrangement and method with divergence reduction
    Patent number: 6215425
    Abstract: According to one aspect of the disclosure, the present invention provides methods and arrangements for the removal or reduction of divergence artifacts between a transmitting codec and a receiving codec.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: April 10, 2001
    Assignee: Netergy Networks, Inc.
    Inventors: Barry D. Andrews, Stephane Bryant, May Shu-Pei Chiang, Ruili Hu, Katherine Kwan, Paul Ning, Paul A. Voois
  • Deblocking filter for encoder/decoder arrangement and method with divergence reduction
    Patent number: 6160503
    Abstract: According to one aspect of the disclosure, the present invention provides methods and arrangements for the removal or reduction of divergence artifacts between a transmitting codec and a receiving codec. One of a number of implementations includes using a deblocking filter in an inverse transformer loop and selectively disabling the filter upon certain conditions.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: December 12, 2000
    Assignee: 8.times.8, Inc.
    Inventors: Barry D. Andrews, Stephane Bryant, May Shu-Pei Chiang, Ruili Hu, Katherine Kwan, Paul Ning, Paul A. Voois, Bryan R. Martin