Patents by Inventor Sameer Gadre

Sameer Gadre 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).

  • Error concealment
    Patent number: 8631295
    Abstract: A method and apparatus for selectively replacing damaged portions of a data stream. The method comprises analyzing the data stream to identify damaged portions therein; selecting a damaged portion for replacement; and replacing the selected damaged portion. The selected damaged portion is selected for replacement in dependence on a rate of replacement, the rate of replacement being that at which previous portions of the data stream have been replaced.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: January 14, 2014
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Xuejing Sun, Sameer Gadre, Scott Plude
  • Error Concealment
    Publication number: 20130159805
    Abstract: A method and apparatus for selectively replacing damaged portions of a data stream. The method comprises analyzing the data stream to identify damaged portions therein; selecting a damaged portion for replacement; and replacing the selected damaged portion. The selected damaged portion is selected for replacement in dependence on a rate of replacement, the rate of replacement being that at which previous portions of the data stream have been replaced.
    Type: Application
    Filed: November 20, 2012
    Publication date: June 20, 2013
    Inventors: Xuejing Sun, Sameer Gadre, Scott Plude
  • Error concealment
    Patent number: 8316267
    Abstract: A method and apparatus for selectively replacing damaged portions of a data stream. The method comprises analyzing the data stream to identify damaged portions therein; selecting a damaged portion for replacement; and replacing the selected damaged portion. The selected damaged portion is selected for replacement in dependence on a rate of replacement, the rate of replacement being that at which previous portions of the data stream have been replaced.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: November 20, 2012
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Xuejing Sun, Sameer Gadre, Scott Plude
  • Signal pitch period estimation
    Patent number: 8185384
    Abstract: A method and apparatus for estimating the pitch period of a signal. The method includes identifying a first candidate pitch period by performing a search only over a first range of potential pitch periods. The method further includes determining a second candidate pitch period by dividing the first candidate pitch period by an integer, wherein the second candidate pitch period is outside the first range of potential pitch periods. The method further includes selecting as the estimate of the pitch period of the signal the smaller of the candidate pitch periods that is such that portions of the signal separated by that candidate pitch period are well correlated.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: May 22, 2012
    Assignee: Cambridge Silicon Radio Limited
    Inventors: Xuejing Sun, Sameer Gadre
  • Error Concealment
    Publication number: 20100281321
    Abstract: A method and apparatus for selectively replacing damaged portions of a data stream. The method comprises analyzing the data stream to identify damaged portions therein; selecting a damaged portion for replacement; and replacing the selected damaged portion. The selected damaged portion is selected for replacement in dependence on a rate of replacement, the rate of replacement being that at which previous portions of the data stream have been replaced.
    Type: Application
    Filed: May 1, 2009
    Publication date: November 4, 2010
    Applicant: CAMBRIDGE SILICON RADIO LIMITED
    Inventors: Xuejing Sun, Sameer Gadre, Scott Plude
  • Signal Pitch Period Estimation
    Publication number: 20100268530
    Abstract: A method and apparatus for estimating the pitch period of a signal. The method includes identifying a first candidate pitch period by performing a search only over a first range of potential pitch periods. The method further includes determining a second candidate pitch period by dividing the first candidate pitch period by an integer, wherein the second candidate pitch period is outside the first range of potential pitch periods. The method further includes selecting as the estimate of the pitch period of the signal the smaller of the candidate pitch periods that is such that portions of the signal separated by that candidate pitch period are well correlated.
    Type: Application
    Filed: April 21, 2009
    Publication date: October 21, 2010
    Applicant: CAMBRIDGE SILICON RADIO LIMITED
    Inventors: Xuejing Sun, Sameer Gadre