Invention Grant
- Patent Title: Dynamic multi-stage decoding
-
Application No.: US15789890Application Date: 2017-10-20
-
Publication No.: US10558522B2Publication Date: 2020-02-11
- Inventor: Jun Tao , Niang-Chu Chen , Mark Joseph Dancho , Xiaoheng Chen
- 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: Morgan, Lewis & Bockius LLP
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G06F11/10 ; H03M13/11 ; G11C29/52 ; H03M13/00 ; G11C29/02 ; H03M13/37

Abstract:
Methods and systems for decoding raw data may select a preliminary read-level voltage from a sequence of read-level voltages based on a decoding success indicator and execute a preliminary hard decoding operation to decode raw data read from a plurality of memory cells using the preliminary read-level voltage. If the preliminary hard decoding operation is successful, the decoded data from the hard decoding operation is returned. If the preliminary hard decoding operation is unsuccessful, a multi-stage decoding operation may be executed to decode raw data read from the plurality of memory cells using the sequence of read-level voltages, and returning decoded data from the multi-stage decoding operation upon completion of the multi-stage decoding operation. The decoding success indicator is maintained based on results of the preliminary hard decoding operation or the multi-stage decoding operation.
Public/Granted literature
- US20190121691A1 DYNAMIC MULTI-STAGE DECODING Public/Granted day:2019-04-25
Information query