Patents by Inventor Frederick C. Neumeyer

Frederick C. Neumeyer 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: 8345483
    Abstract: Methods and systems for addressing threshold voltage shifts of memory cells. A method includes reading a pattern of data from a first plurality of memory cells, comparing the read of the pattern of data with a known pattern of data using a reference, and if the read of the pattern of data and the known pattern of data do not match, adjusting the reference to find a reference level that results in a matching of a read of the pattern of data and the known pattern of data. Thereafter, trim sector data is read into a second plurality of memory cells using the adjusted reference level.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: January 1, 2013
    Assignee: Spansion LLC
    Inventors: Frederick C. Neumeyer, Greg Yancey, Pedro Sanchez, Iftekhar Rahman
  • Publication number: 20120188820
    Abstract: Methods and systems for addressing threshold voltage shifts of memory cells. A method includes reading a pattern of data from a first plurality of memory cells, comparing the read of the pattern of data with a known pattern of data using a reference, and if the read of the pattern of data and the known pattern of data do not match, adjusting the reference to find a reference level that results in a matching of a read of the pattern of data and the known pattern of data. Thereafter, trim sector data is read into a second plurality of memory cells using the adjusted reference level.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 26, 2012
    Inventors: Frederick C. NEUMEYER, Greg YANCEY, Pedro SANCHEZ, Iftekhar RAHMAN