Invention Grant
- Patent Title: Adaptive desaturation in min-sum decoding of LDPD codes
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Application No.: US15665501Application Date: 2017-08-01
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Publication No.: US10177786B2Publication Date: 2019-01-08
- Inventor: Yingquan Wu
- Applicant: Tidal Systems, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Tidal Systems, Inc.
- Current Assignee: Tidal Systems, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Brooks, Cameron & Huebsch, PLLC
- Main IPC: H03M13/11
- IPC: H03M13/11 ; H03M13/00

Abstract:
A system implements adaptive desaturation for the min-sum decoding of LDPC codes. Specifically, when an-above threshold proportion of messages from check nodes to variable nodes (CN-to-VN messages) are saturated to a maximum fixed-precision value, all CN-to-VN messages are halved. This facilitates the saturation of correct messages and boosts error correction over small trapping sets. The adaptive desaturation approach reduces the error floor by orders of magnitudes with negligible add-on circuits.
Public/Granted literature
- US20170331495A1 ADAPTIVE DESATURATION IN MIN-SUM DECODING OF LDPD CODES Public/Granted day:2017-11-16
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