Patents by Inventor Mostafa Fatemi-Booshehri

Mostafa Fatemi-Booshehri 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).

  • Vibroacoustic system for vibration testing
    Patent number: 7987718
    Abstract: Forces are applied to a device under test and its mechanical response is measured by a laser vibrometer (50). The forces are applied without making physical contact with the device by producing an acoustical force with an ultrasonic beam (54). One embodiment employs two confocal transducers (56, 58) that produce beams that flood the device. Drive signals modulate the ultrasonic beams to produce the desired forces, and the use on a plurality of ultrasonic beams enable selective excitation of different modes of vibration of the object (7).
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: August 2, 2011
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Thomas M. Huber, James F. Greenleaf, Mostafa Fatemi-Booshehri
  • Vibroacoustic System for Vibration Testing
    Publication number: 20080302187
    Abstract: Forces are applied to a device under test and its mechanical response is measured by a laser vibrometer (50). The forces are applied without making physical contact with the device by producing an acoustical force with an ultrasonic beam (54). One embodiment employs two confocal transducers (56, 58) that produce beams that flood the device. Drive signals modulate the ultrasonic beams to produce the desired forces, and the use on a plurality of ultrasonic beams enable selective excitation of different modes of vibration of the object (7).
    Type: Application
    Filed: December 16, 2005
    Publication date: December 11, 2008
    Applicant: Mayo Foundation for Medical Education and Research
    Inventors: Thomas M. Huber, James F. Greenleaf, Mostafa Fatemi-Booshehri
  • Confocal acoustic force generator
    Patent number: 5991239
    Abstract: An acoustic transducer has two separate elements which are driven by separate signal generators to produce two acoustic beams that focus at the same target location. The two acoustic beams interact at the target location to produce a beat force. The target location is moved to scan a subject by mechanically moving the acoustic transducer, or the two intersecting acoustic beams can be steered electronically to move the target location.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: November 23, 1999
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: Mostafa Fatemi-Booshehri, James F. Greenleaf
  • Acoustic force generation by amplitude modulating a sonic beam
    Patent number: 5921928
    Abstract: A force is produced within an object by an ultrasonic beam. The frequency of this force is equal to the frequency of a signal used to modulated the amplitude of the beam. The sonic waves produced by the object in response to the force can be used to detect the presence of objects or to image objects based on their mechanical properties. It can also be used to regenerate a desired audio signal in the object.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: July 13, 1999
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: James F. Greenleaf, Mostafa Fatemi-Booshehri
  • Acoustic force generator for detection, imaging and information transmission using the beat signal of multiple intersecting sonic beams
    Patent number: 5903516
    Abstract: A force is produced within an object by two intersecting ultrasonic beams. The frequency of this force is equal to the beat frequency of the two intersecting beams when their frequencies are made different, or the force may vary as a function of a baseband audio signal f(t) that is used to modulate one of the two beams. The sonic waves produced at the intersection of the two beams can be used to detect the presence of objects or to image objects based on their mechanical properties, or to regenerate desired audio signals at the intersection.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: May 11, 1999
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: James F. Greenleaf, Mostafa Fatemi-Booshehri