Memory system
First Claim
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1. A memory system comprising:
- a memory device configured to read out normal data from memory cells, and read out sampling data including N units of sampling data from the memory cells by use of a plurality of read voltages, the N units of sampling data being output N times with one unit of sampling data per time, N being a natural number greater than 1; and
a controller configured to generate probabilistic information, and update the probabilistic information based on the sampling data input from the memory device, and configured to perform an error correction operation, to correct errors in the normal data, by use of the updated probabilistic information,wherein the controller repeatedly updates the probabilistic information whenever at least one unit of the sampling data is input to the controller, andthe controller performs the error correction operation after the N units of sampling data are input from the memory device.
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Abstract
A memory system is provided. The memory system includes a memory device suitable for reading out data from memory cells by a plurality of read voltages having various levels, and a controller suitable for updating probabilistic information based on the read out data when the read out data is input to the controller, and performing an error correction operation by the updated probabilistic information, wherein the controller updates the probabilistic information a predetermined number of times that the memory device reads out the data.
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16 Claims
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1. A memory system comprising:
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a memory device configured to read out normal data from memory cells, and read out sampling data including N units of sampling data from the memory cells by use of a plurality of read voltages, the N units of sampling data being output N times with one unit of sampling data per time, N being a natural number greater than 1; and a controller configured to generate probabilistic information, and update the probabilistic information based on the sampling data input from the memory device, and configured to perform an error correction operation, to correct errors in the normal data, by use of the updated probabilistic information, wherein the controller repeatedly updates the probabilistic information whenever at least one unit of the sampling data is input to the controller, and the controller performs the error correction operation after the N units of sampling data are input from the memory device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A memory system comprising:
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a storage unit configured to store sampling data input from a memory device; a probabilistic information generator configured to generate probabilistic information, and update the probabilistic information based on the sampling data when the sampling data is stored in the storage unit; and an error correction block configured to perform an error correction operation on normal data, input from the memory device, for correcting errors in the normal data by the updated probabilistic information, wherein the probabilistic information generator updates the probabilistic information N times that the sampling data is input to the storage unit, N being a natural number greater than 1, and the error correction block performs the error correction operation after the probabilistic information generator updates the probabilistic information N times. - View Dependent Claims (13, 14, 15, 16)
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Specification