ENCODING A DATA WORD FOR WRITING THE ENCODED DATA WORD IN A MULTI-LEVEL SOLID STATE MEMORY

摘要

A method for encoding a data word for writing an encoded data word in N cells of a solid state memory. Each of the N cells can be programmed in one of q nominal levels. The method includes encoding the data word as a codeword of a first codeword type having q symbol values or as a codeword of a second codeword type having (q-d) symbol values, dε[1, . . . , q−1], depending on a state of the N cells.