Patents Assigned to ASI
  • Patent number: 5990837
    Abstract: A rugged telephone antenna device for transmitting a short pulse duration signal of predetermined radio frequency that eliminates a trailing antenna resonance signal. The device includes a flexible or protected gas filled tube; a voltage source for developing an electrically conductive path along a length of the tube corresponding to a resonant wavelength multiple of the predetermined radio frequency; and a signal transmission source coupled to the tube for supplying a radio frequency signal to the conductive path for antenna transmission. A method for transmitting a short pulse signal without a trailing residual signal is also provided.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: November 23, 1999
    Assignee: ASI
    Inventors: Elwood G. Norris, David W. O'Bryant