Patents by Inventor Jothiram Vivekanandan

Jothiram Vivekanandan 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: 6721678
    Abstract: A velocity determination system determines a three dimensional velocity of an object wherein the three dimensional velocity comprises a radial velocity and a transverse velocity. A velocity determination system receives a first signal from the object. The velocity determination system then receives a second signal from the object. The velocity determination system then correlates the first signal and the second signal. The velocity determination system determines the radial velocity based on a ratio of the correlation of the first signal and the second signal. The velocity determination system then determines a transverse velocity based on a ratio of the correlation of the first signal and the second signal in a forward mode and a backward mode along a transverse direction.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: April 13, 2004
    Assignee: University Corporation for Atmospheric Reserch
    Inventors: Guifu Zhang, Jothiram Vivekanandan, Richard J. Doviak
  • Patent number: 6536948
    Abstract: A method, software, and system determines temperature of a physical medium using remote measurements. One example of a physical medium is a cloud. A receiver receives at least one first received signal from an interaction of at least one first transmitted electromagnetic signal with the physical medium. A processing system then determines the at least one first received signal information based on the at least one first received signal. The processing system then determines the temperature of the physical medium based on the at least one first received signal information.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: March 25, 2003
    Assignee: University Corporation for Atmospheric Research
    Inventors: Jothiram Vivekanandan, Guifu Zhang
  • Patent number: 5777481
    Abstract: A radiometer system detects naturally occurring atmospheric microwave radiation in three bands at approximately 20, 30, and 90 GHz. Signals representing radiation intensity at each of these bands is converted into a brightness temperature and used as a system input to a processing system that yields system outputs including the atmospheric ice water path, liquid water path, and water vapor content. A parameterized radiative transfer model is used to quantify radiation emanating from the atmosphere. The applied signal processing technique provides measurement of the total ice column in the atmosphere, and simultaneously provides accurate measurement of water vapor and liquid water. A calibration technique enhances the accuracy of ice detection measurements by correcting for the effects of absorptive atmospheric components, such as water vapor and liquid water.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: July 7, 1998
    Assignee: University Corporation for Atmospheric Research
    Inventor: Jothiram Vivekanandan