- Patent Title: Suspending and resuming a read operation for a non-volatile memory
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Application No.: US15948560Application Date: 2018-04-09
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Publication No.: US10922013B2Publication Date: 2021-02-16
- Inventor: Revanasiddaiah Prabhuswamy Mathada , Saugata Das Purkayastha , Anantharaj Thalaimalaivanaraj , Nisha Padattil Kuliyampattil
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Loza & Loza, LLP
- Agent Gabriel Fitch
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G11C11/56 ; G11C16/26

Abstract:
The disclosure relates in some aspects to suspending a read for a non-volatile memory (NVM) device. For example, a lower priority read may be suspended to enable a higher priority read to occur. Once the higher priority read completes, the lower priority read is resumed. To improve the efficiency of the read suspension, the lower priority read may be suspended once data sensing at a current level of the NVM device completes. The data for each level that has already been sensed is then stored so that this data does not need to be sensed again. Once the lower priority read is resumed, the data sensing starts at the next level of the NVM device. The data output for the lower priority read thus includes the stored data for any levels read before the read is suspended, along with the data from the levels read after the read is resumed.
Public/Granted literature
- US20190310795A1 SUSPENDING AND RESUMING A READ OPERATION FOR A NON-VOLATILE MEMORY Public/Granted day:2019-10-10
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