Patents by Inventor Mark F. Sarnowski

Mark F. Sarnowski 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).

  • Patent number: 7859245
    Abstract: An apparatus outputs a vital output for a processor including an output state. The apparatus includes a first input receiving the output state, two independent circuits each of which includes a second input electrically interconnected with the first input, a third input, a fourth input and an output including the output state. Each of the independent circuits repetitively monitors the output and the third and fourth inputs of a corresponding one of the independent circuits to confirm agreement therebetween. Each of two switches is controlled by the output of the corresponding one of the independent circuits. The switches cooperate to form the vital output. Each of two feedback circuits is between the output and the third input of the corresponding one of the independent circuits, and also between the output of the corresponding one of the independent circuits and the fourth input of the other one of the independent circuits.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: December 28, 2010
    Assignee: Ansaldo STS USA, Inc.
    Inventors: Mark F. Sarnowski, Kevin N. Wahila
  • Publication number: 20100270987
    Abstract: An apparatus outputs a vital output for a processor including an output state. The apparatus includes a first input receiving the output state, two independent circuits each of which includes a second input electrically interconnected with the first input, a third input, a fourth input and an output including the output state. Each of the independent circuits repetitively monitors the output and the third and fourth inputs of a corresponding one of the independent circuits to confirm agreement therebetween. Each of two switches is controlled by the output of the corresponding one of the independent circuits. The switches cooperate to form the vital output. Each of two feedback circuits is between the output and the third input of the corresponding one of the independent circuits, and also between the output of the corresponding one of the independent circuits and the fourth input of the other one of the independent circuits.
    Type: Application
    Filed: April 27, 2009
    Publication date: October 28, 2010
    Inventors: MARK F. SARNOWSKI, Kevin N. Wahila