Patents by Inventor Evgeny Firsov

Evgeny Firsov 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).

  • Persistent storage device with NVRAM for staging writes
    Patent number: 9501398
    Abstract: A persistent storage device includes both persistent storage, which includes a set of persistent storage blocks, and NVRAM, and in particular a set of NVRAM blocks. The persistent storage device also typically includes a storage controller. The persistent storage device, in addition to responding to commands to write data directly to and to read data directly from persistent storage blocks is also configured to write data to specified NVRAM blocks (e.g., specified by a host NVRAM write command) and to transfer data from a specified NVRAM block to a specified persistent storage block. As a result, multiple writes to a particular persistent storage block can be replaced with multiple writes to an NVRAM block and a subsequent single write to the particular persistent storage block. This reduces the number of writes to persistent storage and also reduces the number of corresponding block erase operations.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 22, 2016
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Johann George, Aaron Olbrich, Brian O'Krafka, Darpan Dinker, Patrick Chiu, Evgeny Firsov
  • Persistent Storage Device with NVRAM for Staging Writes
    Publication number: 20140181373
    Abstract: A persistent storage device includes both persistent storage, which includes a set of persistent storage blocks, and NVRAM, and in particular a set of NVRAM blocks. The persistent storage device also typically includes a storage controller. The persistent storage device, in addition to responding to commands to write data directly to and to read data directly from persistent storage blocks is also configured to write data to specified NVRAM blocks (e.g., specified by a host NVRAM write command) and to transfer data from a specified NVRAM block to a specified persistent storage block. As a result, multiple writes to a particular persistent storage block can be replaced with multiple writes to an NVRAM block and a subsequent single write to the particular persistent storage block. This reduces the number of writes to persistent storage and also reduces the number of corresponding block erase operations.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 26, 2014
    Inventors: Johann George, Aaron Olbrich, Brian O'Krafka, Darpan Dinker, Patrick Chiu, Evgeny Firsov