Patents by Inventor Daniel E. Daugherty

Daniel E. Daugherty 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).

  • Patent number: 7519883
    Abstract: A first scan data is received at a first scan chain and a representation of the first scan data is subsequently provided from the first scan chain to a second scan chain to test the second scan chain in response to a first value at a first bond pad. The first scan chain is bypassed to receive the first scan data at the second scan chain in response to a second value at the first bond pad.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: April 14, 2009
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Daniel E. Daugherty, Brett A. Tischler, Steven J. Kommrusch
  • Patent number: 7187598
    Abstract: A system device receives a first data signal and a first strobe signal from a dual-data-rate (DDR) memory. A first delay value representative of a delay to a predetermined phase location of the first strobe signal is determined. The first delay is adjusted based on a first offset value to generate a first adjusted delay value used to delay the first strobe signal. A first edge of a first pulse of the first delayed strobe signal is used to latch a first data value of the first data signal.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: March 6, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Daniel E. Daugherty, Ronald Scott Hathcock, Steven J. Kommrusch