07388781 is referenced by 166 patents and cites 9 patents.

To store a plurality of input bits, the bits are mapped to a corresponding programmed state of one or more memory cells and the cell(s) is/are programmed to that corresponding programmed state. The mapping may be many-to-one or may be an “into” generalized Gray mapping. The cell(s) is/are read to provide a read state value that is transformed into a plurality of output bits, for example by maximum likelihood decoding or by mapping the read state value into a plurality of soft bits and then decoding the soft bits.

Title
Multi-bit-per-cell flash memory device with non-bijective mapping
Application Number
11/540560
Publication Number
7388781 (B2)
Application Date
October 2, 2006
Publication Date
June 17, 2008
Inventor
Idan Alrod
Tel Aviv
IL
Eran Sharon
Rishon Lezion
IL
Simon Litsyn
Giv'at Shmuel
IL
Agent
Mark M Friedman
Assignee
Sandisk IL
IL
IPC
G06F 13/00
G06F 12/00
G11C 16/06
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