Patents Assigned to James C. Wray
  • Telephone line called number recognizer
    Patent number: 4998273
    Abstract: A party-like telephone line with plural numbers having distinguishable ringing signals on a single line is automatically connected to a facsimile or other telephone connected device for receiving incoming messages upon sensing a predetermined ring sequence with an interface, counter, timers, and comparator.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: March 5, 1991
    Assignee: James C. Wray
    Inventor: Robert H. Nichols