Samsung Electronics Co., Ltd.

Jungsoo Chung

Jaehong Kim

Hong Rak Son

Junjin Kong

Kijun Lee

Sejin Lim

Changkyu Seol

Pilsang Yoon

Seonghyeog Choi

A random data reading method of a nonvolatile memory device includes receiving an initial seed corresponding to a selected page of the nonvolatile memory device and relative location information of read-requested random data in the selected page. The method further includes generating a seed for randomizing the random data by subjecting the initial seed and the location information to a finite field arithmetic operation, and de-randomizing the random data based on a random sequence generated from the seed.

Nonvolatile memory device and nonvolatile memory system and random data read method thereof

A method generating program data to be stored in a nonvolatile memory device comprises randomizing the program data, and processing the randomized program data to reduce a frequency of at least one data state among the randomized program data.

Generation of program data for nonvolatile memory

In a memory system, a memory controller includes a randomizer and a seed controller. The seed controller provides a seed to the randomizer and includes; a first register block performing a first cyclic shift operation using a first parameter related to the nonvolatile memory device, a second register block performing a second cyclic shift operation using a second parameter related to the nonvolatile memory device, and a seed generating block generating the seed from the first and second cyclic shift results.

Memory system controller having seed controller using multiple parameters

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Seoul, South Korea

Jungsoo Chung