Patents by Inventor Abhilash R. Kashyap

Abhilash R. Kashyap 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).

  • On-chip copy with data folding in three-dimensional non-volatile memory array
    Patent number: 10635585
    Abstract: In an on-chip copy process, performed by a storage device, data is copied from a plurality of Single Level Cell (SLC) blocks of non-volatile three-dimensional memory (e.g., 3D flash memory) in a respective memory die to a Multilevel Cell (MLC) block of the same memory die. A copy of source data from a respective SLC block is interleaved with a copy of source data from one or more other SLC blocks in the memory die to produce interleaved source data. Each source data copy that is interleaved is rotated by an offset assigned to the respective SLC block from which the source data is copied, and each respective SLC block in the plurality of SLC blocks is assigned a distinct offset. Each distinct set of the interleaved source data is written to a distinct respective MLC page of the MLC block.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 28, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Abhilash R. Kashyap, Gautam A. Dusija, Deepak Raghu, Chris Nga Yee Yip
  • On-Chip Copy with Data Folding in Three-Dimensional Non-Volatile Memory Array
    Publication number: 20190354478
    Abstract: In an on-chip copy process, performed by a storage device, data is copied from a plurality of Single Level Cell (SLC) blocks of non-volatile three-dimensional memory (e.g., 3D flash memory) in a respective memory die to a Multilevel Cell (MLC) block of the same memory die. A copy of source data from a respective SLC block is interleaved with a copy of source data from one or more other SLC blocks in the memory die to produce interleaved source data. Each source data copy that is interleaved is rotated by an offset assigned to the respective SLC block from which the source data is copied, and each respective SLC block in the plurality of SLC blocks is assigned a distinct offset. Each distinct set of the interleaved source data is written to a distinct respective MLC page of the MLC block.
    Type: Application
    Filed: June 15, 2018
    Publication date: November 21, 2019
    Inventors: Abhilash R. Kashyap, Gautam A. Dusija, Deepak Raghu, Chris Nga Yee Yip