Patents by Inventor Ashish J. Khisti

Ashish J. Khisti 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).

  • Audio frame labeling to achieve unequal error protection for audio frames of unequal importance
    Patent number: 10354660
    Abstract: An endpoint device receives a sequence of audio frames. The endpoint device determines for each audio frame a respective importance level among possible importance levels ranging from a low importance level to a high importance level based on content in the audio frame indicative of the respective importance level. The endpoint device associates each audio frame with the respective importance level, to produce different subsets of audio frames associated with respective ones of different importance levels. The endpoint device, for each subset of audio frames, applies forward error correction to a fraction of audio frames in the subset of audio frames, wherein the fraction increases as the importance level of the audio frames in the subset increases, and does not apply forward error correction to remaining audio frames in the subset.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 16, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Ahmed Badr, Ashish J. Khisti, Wai-tian Tan, Michael A. Ramalho, John G. Apostolopoulos
  • AUDIO FRAME LABELING TO ACHIEVE UNEQUAL ERROR PROTECTION FOR AUDIO FRAMES OF UNEQUAL IMPORTANCE
    Publication number: 20180315431
    Abstract: An endpoint device receives a sequence of audio frames. The endpoint device determines for each audio frame a respective importance level among possible importance levels ranging from a low importance level to a high importance level based on content in the audio frame indicative of the respective importance level. The endpoint device associates each audio frame with the respective importance level, to produce different subsets of audio frames associated with respective ones of different importance levels. The endpoint device, for each subset of audio frames, applies forward error correction to a fraction of audio frames in the subset of audio frames, wherein the fraction increases as the importance level of the audio frames in the subset increases, and does not apply forward error correction to remaining audio frames in the subset.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Inventors: Ahmed Badr, Ashish J. Khisti, Wai-tian Tan, Michael A. Ramalho, John G. Apostolopoulos