Patent ID: 9478298
Filing Date: 2016-10-25
CPC Classification: G06F,G11C

Claim Text:
1. A method of reading data in a memory system including a non-volatile memory device, the method comprising: reading first data stored in a first block of the non-volatile memory device using a first read scheme in response to a first read command, wherein the first read scheme is capable of detecting/correcting an error in the first data; upon determining an uncorrected error in the first data, setting the first block as a first temporary bad block, and reading second data stored in the first temporary bad block using a second read scheme different from the first read scheme in response to a second read command, wherein the second read scheme is capable of detecting/correcting an error in the second data; upon determining an uncorrected error in the second data, setting the first temporary bad block as a bad block; and reading the first data stored in the first block using one of the first read scheme and the second read scheme according to the setting of the first block in response to the second read command.