Invention Grant
US08812939B2 Soft decoding systems and methods for flash based memory systems
有权
用于基于闪存的存储器系统的软解码系统和方法
- Patent Title: Soft decoding systems and methods for flash based memory systems
- Patent Title (中): 用于基于闪存的存储器系统的软解码系统和方法
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Application No.: US13358203Application Date: 2012-01-25
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Publication No.: US08812939B2Publication Date: 2014-08-19
- Inventor: Xueshi Yang , Gregory Burd
- Applicant: Xueshi Yang , Gregory Burd
- Applicant Address: BB St. Michael
- Assignee: Marvell World Trade Ltd.
- Current Assignee: Marvell World Trade Ltd.
- Current Assignee Address: BB St. Michael
- Main IPC: H03M13/00
- IPC: H03M13/00 ; H03M13/03

Abstract:
Systems and methods for decoding data using a decoder that includes a primary decoder and an auxiliary decoder are provided. A codeword is retrieved from a storage device. A primary decoder attempts to decode the codeword using hard data associated with the codeword. If the primary decoder fails, an indication of the failure may be received by a decoder controller, which activates an auxiliary decoder. The auxiliary decoder attempts to decode the codeword using either hard data or soft data associated with the codeword. The primary decoder is designed to consume less power, consume less silicon area, and have a higher throughput than the auxiliary decoder. The primary decoder is configured to have a higher probability of successfully decoding a codeword, stored in the storage device, in the first attempt to decode the codeword, than failing and requiring the auxiliary decoder to decode the codeword.
Public/Granted literature
- US20120198314A1 SOFT DECODING SYSTEMS AND METHODS FOR FLASH BASED MEMORY SYSTEMS Public/Granted day:2012-08-02
Information query
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