Patents by Inventor Rick H. Hay

Rick H. Hay 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).

  • Fail-operational fault tolerant flight critical computer architecture and monitoring method
    Patent number: 5550736
    Abstract: A flight critical computer system for an aircraft includes dual independent lanes having two processors in each lane. The first lane has a primary processor and a redundant processor and provides a first command signal. The second lane includes a primary processor and a redundant processor and provides a second command signal. A first monitor compares the primary processor of the first lane with the primary processor of the second lane and generates first comparison signals as a function of disagreement therebetween. A second monitor compares the output signals of the redundant processor of the second lane and the primary processor of the first lane and generates second comparison signals as a function of disagreement therebetween. A third monitor compares the primary processor of the second lane with the redundant processor of the first lane and generates third comparison signals as a function of disagreement therebetween.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: August 27, 1996
    Assignee: Honeywell Inc.
    Inventors: Rick H. Hay, Clarence S. Smith, Robert D. Girts, Larry J. Yount