Patents by Inventor Ashish Pal Singh Ghai

Ashish Pal Singh Ghai 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: 10564861
    Abstract: Aspects of the disclosure provide for reducing a temperature of one or more non-volatile memory (NVM) dies of a solid state drive (SSD). The methods and apparatus detect a temperature of one or more NVM dies of a plurality of NVM dies of the SSD, the plurality of NVM dies including at least one parity NVM die, and determine that the one or more NVM dies is overheated when the detected temperature is at or above a threshold temperature. If the detected temperature is at or above the threshold temperature, the methods and apparatus redirect parity data designated for the at least one parity NVM die to the one or more overheated NVM dies. By repurposing the one more overheated NVM dies to store the parity data, the repurposed dies will experience less activity, and therefore, generate less heat without throttling or reducing the workload capability of the dies.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 18, 2020
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Daniel Joseph Linnen, Dongxiang Liao, Jagdish Machindra Sabde, Avinash Rajagiri, Ashish Pal Singh Ghai, Abhinav Anand
  • Publication number: 20190317672
    Abstract: Aspects of the disclosure provide for reducing a temperature of one or more non-volatile memory (NVM) dies of a solid state drive (SSD). The methods and apparatus detect a temperature of one or more NVM dies of a plurality of NVM dies of the SSD, the plurality of NVM dies including at least one parity NVM die, and determine that the one or more NVM dies is overheated when the detected temperature is at or above a threshold temperature. If the detected temperature is at or above the threshold temperature, the methods and apparatus redirect parity data designated for the at least one parity NVM die to the one or more overheated NVM dies. By repurposing the one more overheated NVM dies to store the parity data, the repurposed dies will experience less activity, and therefore, generate less heat without throttling or reducing the workload capability of the dies.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 17, 2019
    Inventors: Daniel Joseph Linnen, Dongxiang Liao, Jagdish Machindra Sabde, Avinash Rajagiri, Ashish Pal Singh Ghai, Abhinav Anand
  • Patent number: 9036416
    Abstract: Data, normally read using a page-by page read process, can be recovered from memory cells connected to a broken word line by performing a sequential read process. To determine whether a word line is broken, both a page-by page read process and a sequential read process are performed. The results of both read processes are compared. If the number of mismatches between the two read processes is greater than a threshold, it is concluded that there is a broken word line.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: May 19, 2015
    Assignee: SANDISK TECHNOLOGIES INC.
    Inventors: Nima Mokhlesi, Lanlan Gu, Ashish Pal Singh Ghai, Deepak Raghu