Tracking cells for a memory system

Details Tracking cells for a memory system Tracking cells for a memory system

2007-06-26

2007-06-26

Choi, Woo H. (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S103000, C365S185200, C365S185030, C365S185090

Reexamination Certificate

active

10461244

ABSTRACT:
Tracking cells are used in a memory system to improve the read process. The tracking cells can provide an indication of the quality of the data and can be used as part of a data recovery operation if there is an error. The tracking cells provide a means to adjust the read parameters to optimum levels in order to reflect the current conditions of the memory system. Additionally, some memory systems that use multi-state memory cells will apply rotation data schemes to minimize wear. The rotation scheme can be encoded in the tracking cells based on the states of multiple tracking cells, which is decoded upon reading.

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