Patents by Inventor Tom Hugh Shippey

Tom Hugh Shippey 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).

  • Non-volatile memory and method having block management with hot/cold data sorting
    Patent number: 9176864
    Abstract: A non-volatile memory organized into flash erasable blocks sorts units of data according to a temperature assigned to each unit of data, where a higher temperature indicates a higher probability that the unit of data will suffer subsequent rewrites due to garbage collection operations. The units of data either come from a host write or from a relocation operation. The data are sorted either for storing into different storage portions, such as SLC and MLC, or into different operating streams, depending on their temperatures. This allows data of similar temperature to be dealt with in a manner appropriate for its temperature in order to minimize rewrites. Examples of a unit of data include a logical group and a block.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: November 3, 2015
    Assignee: SANDISK TECHNOLOGIES, INC.
    Inventors: Sergey Anatolievich Gorobets, Alan David Bennett, Tom Hugh Shippey, Liam Michael Parker, Yauheni Yaromenka, Steven T. Sprouse, William S. Wu, Marielle Bundukin
  • Non-Volatile Memory and Method Having Block Management with Hot/Cold Data Sorting
    Publication number: 20120297122
    Abstract: A non-volatile memory organized into flash erasable blocks sorts units of data according to a temperature assigned to each unit of data, where a higher temperature indicates a higher probability that the unit of data will suffer subsequent rewrites due to garbage collection operations. The units of data either come from a host write or from a relocation operation. The data are sorted either for storing into different storage portions, such as SLC and MLC, or into different operating streams, depending on their temperatures. This allows data of similar temperature to be dealt with in a manner appropriate for its temperature in order to minimize rewrites. Examples of a unit of data include a logical group and a block.
    Type: Application
    Filed: May 10, 2012
    Publication date: November 22, 2012
    Inventors: Sergey Anatolievich Gorobets, Alan David Bennett, Tom Hugh Shippey, Liam Michael Parker, Yauheni Yaromenka, Steven T. Sprouse, William S. Wu, Marielle Bundukin