Patents by Inventor John J. Finnegan

John J. Finnegan 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).

  • System for increasing the capacity of existing local area networks that use shielded twisted wire pair medium
    Patent number: 5517487
    Abstract: The data communication capacity of an existing local area network (LAN) 10 that uses a shielded twisted wire pair 16 as its transmission medium may be increased with the addition of special frequency selective terminators 36 and single-ended transceivers 20. The single-ended transceivers 20 have two single-ended transmitter connections 42,44 to the two twisted wires 22,24 in the shielded twisted wire pair medium 16, respectively, and one single-ended receiver connection 46 to one of the two twisted wires 22,24 in the shielded twisted wire pair medium 16. The shielded twisted wire pair medium 16 is terminated by the special frequency selective terminators 36 which provide transmission line impedance matching over the signal bandwidth of a single-ended data channel, while providing a high impedance over the signal bandwidth of a differential data channel.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: May 14, 1996
    Assignee: Modicon, Inc.
    Inventors: Anatoly V. Fridland, John J. Finnegan, David J. Holigan
  • High temperature superconducting thin film structure and method of making
    Patent number: 4940693
    Abstract: The use of a highly stable, lattice-matched barrier layer grown epitaxially on a suitable substrate, and permitting the subsequent epitaxial growth of a thin high-temperature superconducting film with optimized properties.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: July 10, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Joel R. Shappirio, Thomas R. Aucoin, John J. Finnegan
  • Programmable controller
    Patent number: 4484303
    Abstract: An improved programmable controller having the ability to use two different data bases while presenting to the outside world a uniform word size. The programmable controller includes pipeline processing and hardware solution of a user control program in a network node format. A memory management scheme is provided allowing for the direct addressability of one-half million words by utilization of a page register. The programmable controller can be incorporated into a network containing other programmable controllers. The programmable controller also incorporates a multi-task interrupt so that the processor can handle more than one job at any particular time. Input/output tasks are handled logically in the scan solving the user networks rather than being based upon a particular physical area of the controller memory.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: November 20, 1984
    Assignee: Gould Inc.
    Inventors: Salvatore R. Provanzano, Wilbert H. Aldrich, Robert A. D'Angelo, Emil P. Drottar, John J. Finnegan, Jr., James Heom, Lawrence W. Hill, Ronald D. Malcolm, Michael C. Nollet, Baruch S. Perlman, Michael B. Tressler, John E. Van Schalkwyk, Kincade N. Webb
  • Programmable controller
    Patent number: 4307447
    Abstract: An improved programmable controller having the ability to use two different data bases while presenting to the outside world a uniform word size. The programmable controller includes pipeline processing and hardware solution of a user control program in a network node format. A memory management scheme is provided allowing for the direct addressability of one-half million words by utilization of a page register. The programmable controller can be incorporated into a network containing other programmable controllers. The programmable controller also incorporates a multi-task interrupt so that the processor can handle more than one job at any particular time. Input/output tasks are handled logically in the scan solving the user networks rather than being based upon a particular physical area of the controller memory.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: December 22, 1981
    Assignee: Gould Inc.
    Inventors: Salvatore R. Provanzano, Wilbert H. Aldrich, Robert A. D'Angelo, Emil P. Drottar, John J. Finnegan, Jr., James Heom, Lawrence W. Hill, Ronald D. Malcolm, Michael C. Nollet, Baruch S. Perlman, Michael B. Tressler, John E. VanSchalkwyk, Kincade N. Webb
  • Programmable controller housing
    Patent number: D269605
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: July 5, 1983
    Assignee: Gould Inc.
    Inventors: Salvatore R. Provanzano, John J. Finnegan, Jr.