Invention Grant
- Patent Title: Data removal marking in a memory device
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Application No.: US16959064Application Date: 2019-12-31
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Publication No.: US11409462B2Publication Date: 2022-08-09
- Inventor: Huachen Li , Xu Zhang , Zhong Xian Li , Xinghui Duan , Xing Wang , Tian Liang
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Schwegman Lundberg & Woessner, P.A.
- International Application: PCT/CN2019/130387 WO 20191231
- International Announcement: WO2021/134431 WO 20210708
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F12/02 ; G06F12/0882

Abstract:
Devices and techniques for data removal marking in a memory device are described herein. A delete command can be received at the memory device. A count of data portions in the delete command can be compared to determine whether the count is below a threshold. In response to determining that the count of data portions is below the threshold, the data portions can be written to a buffer. When a buffer full event is detected, a segment of an L2P data structure can be loaded into working memory of the memory device. Then, each record in the segment of the L2P data structure that has a corresponding entry in the buffer can be updated to mark the data as removable (e.g., invalid).
Public/Granted literature
- US20210405918A1 DATA REMOVAL MARKING IN A MEMORY DEVICE Public/Granted day:2021-12-30
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