Samsung Electronics Co., Ltd.

Young Pil Song

Sung-Hyun Cho

Sang Won Jung

Ju-Young Lee

Jun Ho Ahn

Bum Hee Lee

In Tae Hwang

A memory device and a dynamic garbage collection method thereof are provided. The method includes receiving a minimum operating speed, ascertaining a reference valid page count ratio (VPC), using a maximum operating speed, the minimum operating speed, and a garbage collection speed, the reference VPC ratio being ascertained by the following formula 1 and determining whether to perform a garbage collection, using the reference VPC ratio and a current average VPC ratio. &#x3c;Formula 1&#x3e; Vr=Gp (Jp&#x2212;Mp)/(Jp*Mp+(Gp*(Jp&#x2212;Mp))) Here, Vr is the reference VPC ratio, Gp is the garbage collection speed, Jp is the maximum operating speed, and Mp is the minimum operating speed.

Method of dynamic garbage collection for a memory device based on valid page count (VPC), garbage collection speed, and maximum and minimum operating speeds

Growing community of inventors

Hwaseong-si, South Korea

Young Pil Song