Memory controller, memory system, recording and reproducing...

Details Memory controller, memory system, recording and reproducing... Memory controller, memory system, recording and reproducing...

2011-05-03

2011-05-03

Pham, Ly D (Department: 2827)

Static information storage and retrieval

Floating gate

Particular biasing

C365S185180, C365S185230

Reexamination Certificate

active

07936609

ABSTRACT:
A memory system has a memory unit that is made of memory cells, each of which assumes a record state with a threshold voltage according to data. If an inverter has performed reverse processing on a data sequence so as to make the number of the memory cells in a predetermined record state great based on a count of a counter in a record operation, the memory system sets a flag added to the data sequence to indicate that the reverse processing has been performed, and performs re-reverse processing on the data sequence to which the flag indicating that the inverter has performed the reverse processing is added in a reproducing operation.

REFERENCES:
patent: 6288935 (2001-09-01), Shibata et al.
patent: 2005/0078519 (2005-04-01), Shiga
patent: 2006/0259716 (2006-11-01), Moschopoulos
patent: 2008/0101131 (2008-05-01), Lee et al.
patent: 2001-93288 (2001-04-01), None

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