US Patent Application 17937334. MEMORY SYSTEM, MEMORY CONTROLLER AND OPERATING METHOD THEREOF FOR DETERMINING GARBAGE COLLECTION VICTIM BLOCK simplified abstract

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MEMORY SYSTEM, MEMORY CONTROLLER AND OPERATING METHOD THEREOF FOR DETERMINING GARBAGE COLLECTION VICTIM BLOCK

Organization Name

SK hynix Inc.

Inventor(s)

Jung Woo Kim of Icheon (KR)

MEMORY SYSTEM, MEMORY CONTROLLER AND OPERATING METHOD THEREOF FOR DETERMINING GARBAGE COLLECTION VICTIM BLOCK - A simplified explanation of the abstract

This abstract first appeared for US patent application 17937334 titled 'MEMORY SYSTEM, MEMORY CONTROLLER AND OPERATING METHOD THEREOF FOR DETERMINING GARBAGE COLLECTION VICTIM BLOCK

Simplified Explanation

The patent application describes a memory system that includes a memory device and a memory controller.

  • The memory device has multiple memory blocks, each containing multiple pages.
  • The memory controller is responsible for managing the memory blocks and pages.
  • The memory controller identifies "super memory blocks" that consist of two or more memory blocks.
  • It calculates the number of valid pages in each super memory block.
  • It determines a victim block for garbage collection based on the minimum valid page count and the average valid page count of the super memory blocks.
  • The dispersion of valid page counts within the memory block groups in the super memory blocks is used to determine the victim block.


Original Abstract Submitted

A memory system may include a memory device including a plurality of memory blocks each including a plurality of pages and a memory controller. The memory controller may be configured to determine a plurality of super memory blocks each including two or more of the plurality of memory blocks, calculate valid page counts of each of the plurality of super memory blocks, and determine a victim block for garbage collection based on a minimum value among the valid page counts of the plurality of super memory blocks and average value of the valid page counts of the plurality of super memory blocks. Furthermore, a dispersion of valid page counts of memory block groups within the super memory blocks may be used to determine the victim block.

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