Patents by Inventor Stuart Jay Berkowitz

Stuart Jay Berkowitz 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).

  • Resonator tuning assembly and method
    Patent number: 6791430
    Abstract: A device and method for tuning a planar filter through a wide range of center frequencies are disclosed. The tuning assembly includes a superconductive tuning tip and an actuator configured and adapted to move the tuning tip through a sufficient range of distances from a resonator or a portion thereof to vary the resonant frequency of the resonator by at least about 10% of the untuned frequency in at least one increment of 0.01% or smaller. An actuator and a position-sensor can be employed in a closed loop feedback system to control the position of the tuning tips. The present invention also provides a method of tuning a filter that includes moving a tuning tip through a sufficient range of distances from a resonator to vary the resonant frequency of the resonator by at least about 10% in at least one increment of 0.01% or smaller.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: September 14, 2004
    Assignee: Conductus, Inc.
    Inventors: Valery Borzenets, Stuart Jay Berkowitz, Philip E. Blumenfeld, Nikolai Maltsev
  • Resonator tuning assembly and method
    Publication number: 20030122635
    Abstract: A device and method for tuning a planar filter through a wide range of center frequencies are disclosed. The tuning assembly includes a superconductive tuning tip and an actuator configured and adapted to move the tuning tip through a sufficient range of distances from a resonator or a portion thereof to vary the resonant frequency of the resonator by at least about 10% of the untuned frequency in at least one increment of 0.01% or smaller. An actuator and a position-sensor can be employed in a closed loop feedback system to control the position of the tuning tips.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: Valery Borzenets, Stuart Jay Berkowitz, Philip E. Blumenfeld, Nikolia Maltsev