Patents Assigned to Digital Systems Group, Inc.
  • Computer telecommunications signalling interface
    Patent number: 5343516
    Abstract: A telecommunications signalling interface for computer systems is presented. Control and information signals from the telephone switch are received, decoded, and converted to a standard interface format for retransmission to the computer. Control and information signals from the computer are received and converted to a standard format for transmission to the telephone switch. The power supply for the device may be derived from the telephone network and the computer interface.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: August 30, 1994
    Assignee: Digital Systems Group, Inc.
    Inventors: David Callele, Donald Cruickshank