Patents by Inventor Kenneth D. Lyon

Kenneth D. Lyon 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).

  • Publication number: 20030151446
    Abstract: The present invention provides an analog frequency divider structure that receives an input signal at a selected frequency and generates an output signal at a fraction, e.g. one-half, of the input frequency. In one embodiment, the analog frequency divider structure is implemented as a MEMS device having a vibratory beam extending along a longitudinal axis between two fixed ends and a piezoelectric transducer coupled to the beam. The MEMS structure further includes a conductive layer disposed on at least a portion of the vibratory beam, which is capacitively coupled to a conductive electrode. A longitudinal excitation of the piezoelectric transducer can effect application of a periodic longitudinal deformation force to the vibratory beam. This deformation force causes the beam to vibrate in a transverse direction at its natural transverse vibrational frequency, which is selected to be a fraction of the input frequency.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 14, 2003
    Applicant: DATUM,INC.
    Inventors: Robert Lutwak, William J. Riley, Kenneth D. Lyon
  • Patent number: 6605849
    Abstract: The present invention provides an analog frequency divider structure that receives an input signal at a selected frequency and generates an output signal at a fraction, e.g. one-half, of the input frequency. In one embodiment, the analog frequency divider structure is implemented as a MEMS device having a vibratory beam extending along a longitudinal axis between two fixed ends and a piezoelectric transducer coupled to the beam. The MEMS structure further includes a conductive layer disposed on at least a portion of the vibratory beam, which is capacitively coupled to a conductive electrode. A longitudinal excitation of the piezoelectric transducer can effect application of a periodic longitudinal deformation force to the vibratory beam. This deformation force causes the beam to vibrate in a transverse direction at its natural transverse vibrational frequency, which is selected to be a fraction of the input frequency.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: August 12, 2003
    Assignee: Symmetricom, Inc.
    Inventors: Robert Lutwak, William J. Riley, Jr., Kenneth D. Lyon