Patents Assigned to ADC DLS Systems, Inc.
  • Enhanced AC immunity in ground fault detection
    Patent number: 7443308
    Abstract: A method for reducing the occurrence of false ground fault detections in a central office terminal is provided. The method includes generating a no-fault signal when no ground current is detected, delaying generation of a fault signal when ground current is detected at least for the duration of an expected pulse in AC induced signal, and when the ground current persists for a sufficient period, generating a signal indicating a fault condition.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: October 28, 2008
    Assignee: ADC DLS Systems, Inc.
    Inventors: William J. Fox, Michael Carter