Patents by Inventor Mohamed Abbas

Mohamed Abbas 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).

  • Noise suppression in PWM-driven DC motor
    Patent number: 5857060
    Abstract: A system for reducing Radio Frequency Interference (RFI) produced by motors which are powered by Pulse Width Modulation (PWM). It is believed that the PWM induces radiation at the PWM frequency and harmonics. The invention shields power cables which carry the PWM pulsed current, and provides capacitive shunting of one of the cables to ground.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: January 5, 1999
    Assignee: ITT Automotive Electrical Systems, Inc.
    Inventors: James Elliott, Mohamed Abbas, John R. Suriano, Thomas W. Holmes
  • Noise suppression in PWM-driven DC motor
    Patent number: 5838877
    Abstract: A system for reducing Radio Frequency Interference (RFI) produced by motors which are powered by Pulse Width Modulation (PWM). It is believed that the PWM induces radiation at the PWM frequency and harmonics. The invention shields power cables which carry the PWM pulsed current, and provides capacitive shunting of one of the cables to ground.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: November 17, 1998
    Assignee: ITT Automotive Electrical Systems, Inc.
    Inventors: James Elliot, Mohamed Abbas, John R. Suriano, Thomas W. Holmes