Patents by Inventor Darcie J. Rankin

Darcie J. Rankin 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).

  • Memory device with programmable receivers to improve performance
    Patent number: 7646649
    Abstract: A memory system having a plurality of DRAMs which are selectively provided non-inverted or inverted signals. The DRAMs have the ability to accept non-inverted or inverted address/command signals from a register that drives a plurality of signals simultaneously. The system includes DRAM receivers with programmable input polarity and a register with programmable output polarity.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: January 12, 2010
    Assignee: International Business Machines Corporation
    Inventors: Bruce G. Hazelzet, Mark W. Kellogg, Darcie J. Rankin