公开(公告)号：US08996959B2

公开(公告)日：2015-03-31

申请号：US13716360

申请日：2012-12-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Uk Jung ,  Dong-Gil Lee ,  Jin-Yeong Kim

IPC: G11C29/42 ,  G06F11/10 ,  G06F12/00 ,  G06F12/02 ,  G11C29/54

CPC classification number: G06F11/10 ,  G06F11/1008 ,  G06F12/00 ,  G06F12/0246 ,  G06F2212/7205

Abstract: During a garbage collection process for a non-volatile memory device of a storage device, an adaptive copy-back method selectively performs either an external or an internal copy-back operation in view of certain performance conditions for a storage device. The external copy-back operation is performed when a number of error-corrected bits per unit size of read data exceeds a given threshold value, and the internal copy-back operation is performed when the number of error-corrected bits does not exceed the threshold value.

Abstract translation: 在存储装置的非易失性存储装置的垃圾收集处理期间，自适应复制方法根据存储装置的某些性能条件选择性地进行外部或内部复制操作。 当读取数据的每单位大小的错误校正位的数量超过给定的阈值时，执行外部复制操作，并且当纠错位的数量不超过阈值时执行内部复制操作 值。