Patents by Inventor Andrew C. Jaw

Andrew C. Jaw 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).

  • Online performance monitoring and fault diagnosis technique for direct current motors as used in printer mechanisms
    Patent number: 5113489
    Abstract: A technique that performs both real time and online monitoring and fault diagnosis during the operation of mechanical equipment with at least one direct current motor. The method described includes the steps of selecting conditions of operation that correspond to acceptable equipment functioning, and monitoring these conditions continuously during the operation of the equipment. When a fault develops, the monitoring routine initiates a diagnosis subroutine which identifies the component causing the fault and establishes an error message to indicate the faulty component, prior to the initiation of equipment shutdown procedures.
    Type: Grant
    Filed: November 7, 1990
    Date of Patent: May 12, 1992
    Assignee: International Business Machines Corporation
    Inventors: Philip K. Cihiwsky, Andrew C. Jaw
  • Online performance monitoring and fault diagnosis technique for direct current motors as used in printer mechanisms
    Patent number: 4994986
    Abstract: A technique that performs both real time and online monitoring and fault diagnosis during the operation of mechanical equipment with at least one direct current motor. The method described includes the steps of selecting conditions of operation that correspond to acceptable equipment functioning, and monitoring these conditions continuously during the operation of the equipment. When a fault develops, the monitoring routine initiates a diagnosis subroutine which identifies the component causing the fault and establishes an error message to indicate the faulty component, prior to the initiation of equipment shutdown procedures.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: February 19, 1991
    Assignee: International Business Machines Corporation
    Inventors: Philip K. Cihiwsky, Andrew C. Jaw