Patents by Inventor Gursimran Kashyap

Gursimran 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).

  • Patent number: 12360890
    Abstract: Aspects of a storage device are provided including zone-based GC in a ZNS. The storage device includes a NVM and a controller. The NVM includes first blocks, second blocks, and third blocks. The controller creates a first superblock including the first blocks, a second superblock including the second blocks, and a third superblock including the third blocks. The controller allocates a first sub-drive including the first superblock for storing data overwrites and a second sub-drive including the second and third superblocks for storing sequential data in the NVM. During GC for superblocks respectively including data for a specific zone, the controller relocates written data for this zone from the first and third superblocks to the second superblock while refraining from relocating data associated with other zones from the first superblock to the second superblock. As a result, storage device cost, overprovisioning, and WAF may be reduced.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: July 15, 2025
    Assignee: Sandisk Technologies, Inc.
    Inventors: Aakar Deora, Navin Kochar, Sampath Kumar Raja Murthy, Gursimran Kashyap
  • Publication number: 20240160562
    Abstract: Aspects of a storage device are provided including zone-based GC in a ZNS. The storage device includes a NVM and a controller. The NVM includes first blocks, second blocks, and third blocks. The controller creates a first superblock including the first blocks, a second superblock including the second blocks, and a third superblock including the third blocks. The controller allocates a first sub-drive including the first superblock for storing data overwrites and a second sub-drive including the second and third superblocks for storing sequential data in the NVM. During GC for superblocks respectively including data for a specific zone, the controller relocates written data for this zone from the first and third superblocks to the second superblock while refraining from relocating data associated with other zones from the first superblock to the second superblock. As a result, storage device cost, overprovisioning, and WAF may be reduced.
    Type: Application
    Filed: July 7, 2023
    Publication date: May 16, 2024
    Inventors: Aakar DEORA, Navin Kochar, Sampath Kumar Raja Murthy, Gursimran Kashyap