Patents by Inventor William George Daly

William George Daly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Loss of lock detector for master timing generator
    Patent number: 5719508
    Abstract: A digital loss of lock detection (LLD) device for a phase looked loop (PLL) generates a locked frequency signal synchronized with a reference frequency signal. The LLD comprises first to fifth latching means for detecting when the reference clock failed high/low, when the locked clock failed high/low and when the reference clock is outside the tracking range of the PLL. The first to fifth latching means provide respectively a first to fifth error signals for each type of the above faults.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: February 17, 1998
    Assignee: Northern Telecom, Ltd.
    Inventor: William George Daly