Patents by Inventor Shazad Khalid

Shazad Khalid 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).

  • Tracking cells for a memory system
    Patent number: 7916552
    Abstract: Tracking cells are used in a memory system to improve the read process. The tracking cells can provide an indication of the quality of the data and can be used as part of a data recovery operation if there is an error. The tracking cells provide a means to adjust the read parameters to optimum levels in order to reflect the current conditions of the memory system. Additionally, some memory systems that use multi-state memory cells will apply rotation data schemes to minimize wear. The rotation scheme can be encoded in the tracking cells based on the states of multiple tracking cells, which is decoded upon reading.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: March 29, 2011
    Assignee: SanDisk Corporation
    Inventors: Daniel C. Guterman, Stephen J. Gross, Shazad Khalid, Geoffrey S. Gongwer
  • TRACKING CELLS FOR A MEMORY SYSTEM
    Publication number: 20100202199
    Abstract: Tracking cells are used in a memory system to improve the read process. The tracking cells can provide an indication of the quality of the data and can be used as part of a data recovery operation if there is an error. The tracking cells provide a means to adjust the read parameters to optimum levels in order to reflect the current conditions of the memory system. Additionally, some memory systems that use multi-state memory cells will apply rotation data schemes to minimize wear. The rotation scheme can be encoded in the tracking cells based on the states of multiple tracking cells, which is decoded upon reading.
    Type: Application
    Filed: April 20, 2010
    Publication date: August 12, 2010
    Inventors: Daniel C. Guterman, Stephen J. Gross, Shazad Khalid, Geoffrey S. Gongwer