Method for performing data shaping, and associated memory device and controller thereof

摘要

A method for performing data shaping is provided. The method is applied to a controller of a Flash memory, where the Flash memory includes a plurality of blocks. The method includes: according to contents of data to be written into or read from the Flash memory, generating/recovering an input seed of at least one randomizer/derandomizer; and utilizing the randomizer/derandomizer to generate a random function according to the input seed, for use of adjusting a plurality of bits of the data bit by bit. An associated memory device and a controller thereof are also provided.

主权项

1. A method for writing data into a Flash memory, the method being applied to a controller of the Flash memory, the Flash memory comprising a plurality of blocks, the method comprising:
according to contents of the data to be written into the Flash memory, utilizing at least one seed generator to generate an input seed of at least one randomizer; utilizing the randomizer to generate a random function according to the input seed, using the random function to perform data shaping upon the data by adjusting a plurality of bits of the data to generate shaped data; writing the shaped data into the Flash memory; wherein the data comprises a plurality of portions; and the seed generator performs an exclusive OR (XOR) operation on corresponding bits of at least two portions of the plurality of portions to generate the input seed.