Patents by Inventor William J Ossmann

William J Ossmann 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).

  • Aperture control and apodization in a micro-machined ultrasonic transducer
    Patent number: 6381197
    Abstract: A micro-machined ultrasonic transducer (MUT) having aperture, elevation and apodization controlled by apparatus located on the same substrate as the transducer, or by bias voltage control applied to MUT elements, allows for an efficient and compact ultrasonic probe. The control apparatus may take the form of field effect transistors (FET's), micro-machined relays, or doped regions on the substrate, or any other apparatus that may be located on the same substrate as that of the transducer, or by bias voltage sources connected to the MUT elements.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: April 30, 2002
    Inventors: Bernard J Savord, William J Ossmann, Jie Chen, Michael P Anthony, Turuvekere R Gururaja, Stephen M Grenon
  • Micro-machined ultrasonic transducer array
    Patent number: 6314057
    Abstract: A plurality of applications for a micro-machined ultrasonic transducer (MUT) including an improved MUT array containing optimized transmit MUT elements and optimized receive MUT elements, a MUT array in which staggered MUT elements increase the sensitivity of the array, and a MUT array for multiple plane scanning.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: November 6, 2001
    Inventors: Rodney J Solomon, Bernard J Savord, William J Ossmann, Benjamin M Herrick
  • Circuit and method for exciting a micro-machined transducer to have low second order harmonic transmit energy
    Patent number: 6292435
    Abstract: A circuit and method for predistorting an input pulse to a micro-machined ultrasonic transducer (MUT) compensates for non-linearities in the transducer, thus allowing the transducer to provide a compensated output pressure wave having a low second order harmonic transmit energy. In another aspect of the invention, the output power of a MUT may be controlled.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: September 18, 2001
    Assignee: Agilent Technologies, Inc.
    Inventors: Bernard J Savord, William J Ossmann