Patents by Inventor Alex Zarubin

Alex Zarubin 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 and system for spurious and noise cancellation in a wireless transmitter
    Patent number: 6792250
    Abstract: A system and method for noise and spurious cancellation in a filter system having a phase shift network for attenuating and canceling an unwanted spurious RF signal component. A signal splitter splits an input signal into a primary and a secondary component. The phase shift network attenuates and phase shifts the secondary signal component by 180 degrees relative to the primary prefiltered signal in such a way that a sideband spur directly cancels with the filtered output primary signal in a subsequent combining stage.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 14, 2004
    Assignee: Mitsubishi Electric Corporation
    Inventor: Alex Zarubin