Patents Examined by Elio DiVito
  • Current regulated pulse dialer with memory retention circuit
    Patent number: 4527016
    Abstract: A current regulated pulse dialer circuit including a memory for storing predetermined sequences of telephone numbers, for use in a loop powered pulse dialing telephone. A first current source is connected to an electronic pulse dialer to provide a high impedance across the telephone line during transmission and interpulse pause conditions and a second current source is connected to an electronic pulse dialer to maintain the integrity of information stored in the memory portion of the dialer circuitry.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: July 2, 1985
    Assignee: GTE Business Communication Systems Inc.
    Inventor: John D. Sublette