Patents by Inventor Darrell Donaldson

Darrell Donaldson 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).

  • Enhanced clock forwarding data recovery
    Patent number: 6977979
    Abstract: A phase and edge aligned local clock signal is generated in a data-receiving unit by deriving the local clock signal from a forwarded clock signal received from a transmitting unit. The local clock signal is a delayed replica of the forwarded clock signal, such that the receiving unit maintains synchronism between the local clock signal and the forwarded clock signal. Thus, transfers from an input latch to other components in the receiving unit can be effected in step with the receipt of data in the input latch.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: December 20, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Hartwell, Darrell Donaldson