Invention Grant
- Patent Title: Method of operating decoder for reducing computational complexity and method of operating data storage device including the decoder
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Application No.: US16229153Application Date: 2018-12-21
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Publication No.: US10700714B2Publication Date: 2020-06-30
- Inventor: Dong Min Shin , Beom Kyu Shin , Heon Hwa Cheong , Jun Jin Kong , Hong Rak Son , Yeong Geol Song , Se Jin Lim
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Volentine, Whitt & Francos, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@33bdf462
- Main IPC: H03M7/40
- IPC: H03M7/40 ; H03M13/39 ; H03M13/11

Abstract:
A method of operating a decoder, which has variable nodes and check nodes, includes receiving variable-to-check (V2C) messages from the variable nodes using a first check node among the check nodes. The number of messages having a specific magnitude among the V2C messages is counted. The magnitude of a check-to-variable (C2V) message to be transmitted to a first variable node, among the variable nodes, is determined based on the count value and the magnitude of a V2C message of the first variable node.
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