Patents by Inventor Donald J. Eivers

Donald J. Eivers 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: 4763124
    Abstract: A hybrid controller is used to control a plurality of relays, within a switching matrix, for effecting connection of an equipment under test to at least one of a plurality of test instruments. To do so, the hybrid controller utilizes latch drivers which are capable of driving 24 relays simultaneously. To check whether or not the correct relay is activated, drivers are used to sense the statuses of the relays and forward the information to a central processing unit for comparison. The drivers are controllably actuated by a decoder means, which in turn is controlled by the central processor.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: August 9, 1988
    Assignee: Grumman Aerospace Corporation
    Inventors: Eddie T. Kovacs, Donald J. Eivers
  • Patent number: 4719459
    Abstract: The signal distribution function in a signal distribution system is performed in a switching matrix under the control of a hybrid controller. With respect to the switching matrix, there are approximately 120-140 available interface I/O connections such that an equipment under test can be selectively connected to any one of a plurality of test instruments. The relays within the switching matrix are selectively activated such that a signal path connecting the equipment under test to a particular test instrument can be accomplished with a minimum amount of switching path conflicts.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: January 12, 1988
    Assignee: Grumman Aerospace Corporation
    Inventors: Eddie T. Kovacs, Donald J. Eivers
  • Patent number: 4300207
    Abstract: A multiple matrix switching system for use in connecting a unit under test to one or more external instruments which may either provide a signal input to the unit under test or measure the output of the unit under test is disclosed. Matrix switching allows connections between the unit under test and each external instrument to be effected with only two switching elements. Switching system control to select a signal path is accomplished by means of a microprocessor which resolves switching path conflicts through switching system status monitoring.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: November 10, 1981
    Assignee: Grumman Aerospace Corporation
    Inventors: Donald J. Eivers, Eddie J. Kovacs