Patents by Inventor Richard Manning White

Richard Manning White 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 extracting derivatives from surface acoustic waves
    Patent number: 4056803
    Abstract: An interdigital electrode transducer mounted on an acoustic surface wave propagating medium having an output proportional to an Nth order derivative of the surface acoustic waves propagating in the medium. The Nth order derivative, where N is any real, positive number, is obtained by using a finite difference approximation. The transducer finger pairs are biphase coded and amplitude weighted in order to detect the proper combination of signal differences for the approximation and thereby indicate the desired derivative.
    Type: Grant
    Filed: November 14, 1975
    Date of Patent: November 1, 1977
    Assignee: The Regents of the University of California
    Inventors: Richard Manning White, Tzu-Hwa Hsu