Patents by Inventor Swetha Kannan

Swetha Kannan 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).

  • Application of wavelet transform filtering for processing data signals from optical data storage devices
    Patent number: 7974170
    Abstract: An optical data recovery system including an optical receiver configured to receive light reflected from an optical medium and produce modulated data, a processing unit configured to transform the modulated data into a series of transform coefficients respectively identifying frequencies of the modulated data at respective times, and the processing unit is configured to identify from the series of transform coefficients defect coefficients associated with positions in the modulated data where the modulated data is corrupted.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: July 5, 2011
    Assignee: The Arizona Board of Regents on Behalf of The University of Arizona
    Inventors: Thomas Dean Milster, Swetha Kannan
  • Application of wavelet transform filtering for processing data signals from optical data storage devices
    Publication number: 20080285413
    Abstract: An optical data recovery system including an optical receiver configured to receive light reflected from an optical medium and produce modulated data, a processing unit configured to transform the modulated data into a series of transform coefficients respectively identifying frequencies of the modulated data at respective times, and the processing unit is configured to identify from the series of transform coefficients defect coefficients associated with positions in the modulated data where the modulated data is corrupted.
    Type: Application
    Filed: January 14, 2008
    Publication date: November 20, 2008
    Applicant: THE ARIZONA BD OF REG ON BEHALF OF THE UNIV OF AZ
    Inventors: Thomas Dean Milster, Swetha Kannan