Patents by Inventor Raj S. Acharya

Raj S. Acharya 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).

  • Method and apparatus for diagnosing the state of a machine
    Patent number: 5251151
    Abstract: A method and apparatus for diagnosing the mechanical condition of a machine. The method of the invention includes the following steps: sensing a reference vibrational signal of the machine; creating a reference set of events from the reference vibrational signal of the machine; saving the reference set of events; sensing a test vibrational signal of the machine; creating a test set of events from the test vibrational signal of the machine; and, comparing the test set of events with the reference set of events to determine the mechanical condition of the machine. The invention further includes a method of extracting a set of events from a vibrational signal of a machine wherein a subset of the events corresponds to a physical action of the machine. The invention also includes a method of determining a set of clustered events for a machine from a plurality of sets of events, wherein each of the sets has a number of events therein.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: October 5, 1993
    Assignee: Research Foundation of State Univ. of N.Y.
    Inventors: Victor Demjanenko, David M. Benenson, Soon Y. Park, Selwyn Wright, Andres Soom, Raj S. Acharya, Mehrdad Soumekh