US 12,455,697 B2
Memory system and operating method thereof for allocating and storing meta data
Duck Joo Lee, Gyeonggi-do (KR)
Assigned to SK hynix Inc., Gyeonggi-do (KR)
Filed by SK hynix Inc., Gyeonggi-do (KR)
Filed on Jul. 21, 2023, as Appl. No. 18/356,219.
Claims priority of application No. 10-2023-0014332 (KR), filed on Feb. 2, 2023.
Prior Publication US 2024/0264757 A1, Aug. 8, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/064 (2013.01) [G06F 3/0658 (2013.01); G06F 3/0604 (2013.01); G06F 3/0679 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A memory system comprising:
a memory device including a plurality of memory blocks each including a plurality of pages; and
a memory controller configured to:
allocate, to a meta page among the plurality of pages, a first region including regions configured to store plural pieces of meta data respectively according to types of the plural pieces of meta data, and a second region configured to store additional meta data corresponding to at least one meta data among the plural pieces of meta data, and
control the memory device to store the plural pieces of meta data and the additional meta data in the first region and the second region, respectively,
wherein the second region includes:
an additional meta data storage region of which a size is determined based on the additional meta data corresponding to the plural pieces of meta data; and
a head region configured to store size information which is associated with the additional meta data, and
wherein the memory controller controls the memory device to store the additional meta data in the additional meta data storage region.