Method and system for updating a stored data value in a non-volatile memory
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United States of America Patent
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Oct 12, 2010
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app pub date -
Jun 3, 2008
filing date -
Oct 4, 2007
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Abstract
The invention provides a method of updating a stored data value in a non-volatile memory. The method includes reading the stored data value from the non-volatile memory; reading a stored differential value from a volatile memory; receiving an updated data value; calculating a calculated differential value from the difference between the updated data value and the sum of the stored data value and the stored differential value; comparing the calculated differential value with a threshold differential value; and writing the updated data value to the non-volatile memory if the calculated differential value exceeds the threshold differential value. The invention further provides a related memory system.
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