Patents Assigned to ATT Corp--Lucent Technologies Inc
  • Active ground compensation
    Patent number: 5869909
    Abstract: A ground voltage reduction device is connected between a neutral reference node and a ground node defined by two bypass capacitors of a blocking circuit. The ground voltage reduction device senses the voltage difference between the neutral reference node and the ground node and drives the ground node to reduce the voltage difference between a voltage of the ground node and a voltage of the neutral reference node.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: February 9, 1999
    Assignee: ATT Corp--Lucent Technologies Inc
    Inventors: Michael H. Silverberg, Woodson Dale Wynn