Patents by Inventor Anatoly V. Fridland

Anatoly V. Fridland 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