Patent ID: 8667209
Filing Date: 2014-03-04
Classification: G06F

Abstract:
1. A non-volatile memory access method for accessing a plurality of physical blocks in a non-volatile memory chip, wherein each of the physical blocks has a plurality of physical pages, the non-volatile memory access method comprises: receiving an updated data for updating data stored in a first physical block, wherein the first physical block includes a plurality of specific physical pages, the specific physical pages includes a first physical page and a plurality of second physical pages, the data is stored in the first physical page and the second physical pages store valid data; determining whether there is enough space in the first physical block for writing the updated data and the valid data therein, wherein the updated data and the valid data are different; and if there is enough space in the first physical block for writing the updated data and the valid data therein, writing the updated data into a third physical page of the first physical block and directly copying the valid data from the second physical pages into a plurality of fourth physical pages of the first physical block.