Patents by Inventor Vincent J. Rosati

Vincent J. Rosati 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 of minimizing the aging and radiation induced frequency shifts of quartz oscillators
    Patent number: 5512863
    Abstract: The aging and radiation induced frequency shifts of quartz crystal oscillrs are minimized by using oscillator circuits in which the DC voltage applied to the quartz crystal is about zero. This results in reduced movement of impurity ions which generally cause such shifts.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: April 30, 1996
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John R. Vig, Vincent J. Rosati
  • Suppression of vibration effects on piezoelectric crystal resonators
    Patent number: 4453141
    Abstract: An active method and apparatus for suppressing or cancelling the effects of vibration on quartz crystal controlled oscillators by generating an electrical signal which is a replica of the vibration acting on the crystal resonator, which signal is thereafter properly phased and applied directly to the crystal electrodes which thereby operates to substantially eliminate unwanted vibration-induced sidebands in the signal output of the oscillator.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: June 5, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Vincent J. Rosati
  • Apparatus and method for the remote detection of vibrations of diffuse surfaces
    Patent number: 3952583
    Abstract: Apparatus and method for the remote detection of vibrations of diffuse surfaces. A beam of coherent light incident on a vibrating diffuse surface is scattered. A photodetector sees the scattering as a time-varying intensity distribution related to the vibration frequency of the surface. The detected time-varying intensity distribution is converted into time-varying electrical currents which can be rendered audible by using a loudspeaker or visual by using an oscilloscope.
    Type: Grant
    Filed: January 2, 1975
    Date of Patent: April 27, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Vincent J. Rosati