Invention Grant
- Patent Title: Adaptive desaturation in min-sum decoding of LDPC codes
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Application No.: US14808793Application Date: 2015-07-24
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Publication No.: US09755666B2Publication Date: 2017-09-05
- 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
- US20170026055A1 ADAPTIVE DESATURATION IN MIN-SUM DECODING OF LDPC CODES Public/Granted day:2017-01-26
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