公开(公告)号：US10810121B2

公开(公告)日：2020-10-20

申请号：US16239535

申请日：2019-01-04

Applicant: PHISON ELECTRONICS CORP.

Inventor： Chien-Wen Chen ,  Ting-Wei Lin

IPC: G06F12/02 ,  G06F12/06 ,  G06F12/1045 ,  G06F3/06 ,  G06F12/12

Abstract: A data merge method for a rewritable non-volatile memory module including a plurality of physical units is provided according to an exemplary embodiment of the disclosure. The method includes: obtaining a first logical distance value between a first physical unit and a second physical unit among the physical units, and the first logical distance value reflects a logical dispersion degree between at least one first logical unit mapped by the first physical unit and at least one second logical unit mapped by the second physical unit; and performing a data merge operation according to the first logical distance value, so as to copy valid from a source node to a recycling node.

公开(公告)号：US09983805B1

公开(公告)日：2018-05-29

申请号：US15655895

申请日：2017-07-21

Applicant: PHISON ELECTRONICS CORP.

Inventor： Chien-Wen Chen ,  Yi-Chang Hsieh

IPC: G11C7/00 ,  G06F3/06 ,  G06F12/02

CPC classification number: G06F3/0616 ,  G06F3/0619 ,  G06F3/065 ,  G06F3/0652 ,  G06F3/0679 ,  G06F12/0253 ,  G06F2212/7205

Abstract: A memory management method, and a memory control circuit unit and a memory storage apparatus using the same are provided. The method includes recording a valid data count of each physical erasing unit, and identifying a plurality of first physical erasing units, wherein the valid data count of each first physical erasing unit is between a first predetermined value and a second predetermined value. The method also includes selecting a physical erasing unit from the first physical erasing units for performing a garbage collection operation if the number of the first physical erasing units meets a predetermined condition.

公开(公告)号：US10310739B2

公开(公告)日：2019-06-04

申请号：US15690286

申请日：2017-08-30

Applicant: PHISON ELECTRONICS CORP.

Inventor： Chien-Wen Chen ,  Che-Yueh Kuo

IPC: G06F12/00 ,  G06F3/06 ,  G06F12/02

Abstract: A memory management method is provided according to an exemplary embodiment of the disclosure. The method includes: obtaining a valid data parameter based on a valid data amount of valid data stored in a plurality of physical erasing units, and obtaining a first threshold value based on the valid data parameter. The method also includes: obtaining a first determination parameter based on a number of a plurality of first physical erasing units, and the first physical erasing units are physical erasing units being programmed for storing data by using a single-page programming mode. The method further includes: performing a garbage collection operation if the first determination parameter is greater than the first threshold value.

公开(公告)号：US20190012080A1

公开(公告)日：2019-01-10

申请号：US15690286

申请日：2017-08-30

Applicant: PHISON ELECTRONICS CORP.

Inventor： Chien-Wen Chen ,  Che-Yueh Kuo

IPC: G06F3/06 ,  G06F12/02

Abstract: A memory management method is provided according to an exemplary embodiment of the disclosure. The method includes: obtaining a valid data parameter based on a valid data amount of valid data stored in a plurality of physical erasing units, and obtaining a first threshold value based on the valid data parameter. The method also includes: obtaining a first determination parameter based on a number of a plurality of first physical erasing units, and the first physical erasing units are physical erasing units being programmed for storing data by using a single-page programming mode. The method further includes: performing a garbage collection operation if the first determination parameter is greater than the first threshold value.

公开(公告)号：US20200133844A1

公开(公告)日：2020-04-30

申请号：US16239535

申请日：2019-01-04

Applicant: PHISON ELECTRONICS CORP.

Inventor： Chien-Wen Chen ,  Ting-Wei Lin

IPC: G06F12/02 ,  G06F12/06 ,  G06F12/1045 ,  G06F12/12 ,  G06F3/06

Abstract: A data merge method for a rewritable non-volatile memory module including a plurality of physical units is provided according to an exemplary embodiment of the disclosure. The method includes: obtaining a first logical distance value between a first physical unit and a second physical unit among the physical units, and the first logical distance value reflects a logical dispersion degree between at least one first logical unit mapped by the first physical unit and at least one second logical unit mapped by the second physical unit; and performing a data merge operation according to the first logical distance value, so as to copy valid from a source node to a recycling node.