Patents Assigned to Ixo, Inc.
  • Electronic telephone interface circuit
    Patent number: 4465903
    Abstract: An electronic telephone interface circuit having a simplified, inductorless electronic gyrator circuit which also functions as an amplifying impedance convertor, and further having passive current and voltage limiting protection devices and an extremely fast active current limiting circuit. The system is particularly suitable for coupling a high impedance electronic system to a telephone communications system, and is adapted to permit the interface circuit and the electronic system to be powered solely from the telephone system.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: August 14, 1984
    Assignee: Ixo, Inc.
    Inventor: Andrew C. Barber