Patents by Inventor K. R. Ananda Murthy

K. R. Ananda Murthy 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).

  • ELF communications system using HVDC transmission line as antenna
    Patent number: 3993989
    Abstract: An extremely low frequency (ELF) Communication System is disclosed for worldwide communication from land to receiving stations thousands of miles away using the existing DC power transmission lines of the Pacific Intertie power transmission system as the antenna. An ELF communication system requires a very long uninterrupted antenna or a series of long parallel antennas. The transmission lines of the Pacific Intertie DC power system lend themselves to be used as the required long antenna for the disclosed ELF system. The DC lines together with the associated ELF transmitter and coupling devices comprise the global ELF communication system disclosed herein.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: November 23, 1976
    Assignee: TRW Inc.
    Inventors: Gedaliahu Held, K. R. Ananda Murthy