公开(公告)号：US11042308B2

公开(公告)日：2021-06-22

申请号：US16742811

申请日：2020-01-14

Applicant: MACRONIX International Co., Ltd.

Inventor： Wei-Chen Wang ,  Ping-Hsien Lin ,  Tse-Yuan Wang ,  Yuan-Hao Chang ,  Tei-Wei Kuo

IPC: G06F3/06 ,  G06F16/901 ,  G06F12/10

Abstract: A memory management method includes: performing a bloom filtering operation on a plurality of logic block addresses to determine a read and written frequency of each of the logic block addresses; setting a first program/erase (P/E) cycle threshold and a second P/E cycle threshold value, wherein the first P/E cycle threshold value is smaller than the second P/E cycle threshold value; dividing each of physical memory blocks into a first type memory block, a second type memory block or a third type memory block according to the first P/E cycle threshold value and the second P/E cycle threshold value; and, allocating each of the logic block addresses to the first type memory block, the second type memory block or the third type memory block according to the read and written frequency of corresponding logic block addresses.

公开(公告)号：US20210158160A1

公开(公告)日：2021-05-27

申请号：US17096575

申请日：2020-11-12

Applicant: MACRONIX International Co., Ltd.

Inventor： Wei-Chen Wang ,  Shu-Yin Ho ,  Chien-Chung Ho ,  Yuan-Hao Chang

IPC: G06N3/08 ,  G06N3/04 ,  G06F3/06

Abstract: An operation method of an artificial neural network is provided. The operation method includes: dividing input information into a plurality of sub-input information, and expanding kernel information to generate expanded kernel information; performing a Fast Fourier Transform (FFT) on the sub-input information and the expanded kernel information to respectively generate a plurality of frequency domain sub-input information and frequency domain expanded kernel information; respectively performing a multiplying operation on the frequency domain expanded kernel information and the frequency domain sub-input information to respectively generate a plurality of sub-feature maps; and performing an inverse FFT on the sub-feature maps to provide a plurality of converted sub-feature maps for executing a feature extraction operation of the artificial neural network.

公开(公告)号：US20190034118A1

公开(公告)日：2019-01-31

申请号：US15662348

申请日：2017-07-28

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Hung-Sheng Chang ,  Hsiang-Pang Li ,  Yuan-Hao Chang ,  Tei-Wei Kuo

IPC: G06F3/06

Abstract: A data management method for a memory device includes: counting a system time; when at least a part of a block of the memory device is accessed or refreshed or programmed at first time, assigning a block number of the block to point to a maximum remaining retention time; when a first downgrade trigger time reaches, assigning the block number to point from the maximum remaining retention time to a medium remaining retention time; when a second downgrade trigger time reaches, assigning the block number to point from the medium remaining retention time to a minimum remaining retention time; and once the block number points to the minimum remaining retention time, refreshing the block and assigning the block number to point to the maximum remaining retention time.

公开(公告)号：US20170147217A1

公开(公告)日：2017-05-25

申请号：US15093841

申请日：2016-04-08

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Hung-Sheng Chang ,  Yu-Ming Chang ,  Hsiang-Pang Li ,  Yuan-Hao Chang ,  Tei-Wei Kuo

IPC: G06F3/06 ,  G11C16/34 ,  G11C16/10

CPC classification number: G06F3/064 ,  G06F3/0619 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0679 ,  G11C11/5628 ,  G11C16/10 ,  G11C16/3427 ,  G11C2211/5641 ,  G11C2211/5648

Abstract: A data allocating method includes steps of: determining whether data to be written into a physical memory block is hot data or cold data; when the data is hot data, according to a hot data allocating order, searching at least one first empty sub-block from the physical memory block to allocate the data; when the data is cold data, according to a cold data allocating order, searching at least one second empty sub-block from the physical memory block to allocate the data.

公开(公告)号：US20160154593A1

公开(公告)日：2016-06-02

申请号：US14811970

申请日：2015-07-29

Applicant: MACRONIX INTERNATIONAL CO., LTD.

Inventor： Hung-Sheng Chang ,  Hsiang-Pang Li ,  Chun-Ta Lin ,  Yuan-Hao Chang ,  Tei-Wei Kuo

IPC: G06F3/06

CPC classification number: G06F3/0673 ,  G06F3/0608 ,  G06F3/061 ,  G06F3/064 ,  G06F3/0641

Abstract: A memory system is provided. The memory system includes a memory controller and a first memory block. The first memory block is configured to store a first data from a top of the first memory block in a top-down fashion. The first memory block is configured to store a first metadata corresponding to the first data from a bottom of the first memory block in a bottom-up fashion. The first data forms a first data area. The first metadata forms a first metadata area. And a first continuous space is formed between a bottom of the first data area and a top of the first metadata area.

Abstract translation: 提供了一种存储系统。 存储器系统包括存储器控制器和第一存储器块。 第一存储块被配置为以自顶向下的方式存储来自第一存储器块的顶部的第一数据。 第一存储器块被配置为以自下而上的方式存储来自第一存储器块的底部的与第一数据相对应的第一元数据。 第一数据形成第一数据区。 第一个元数据形成第一个元数据区域。 并且在第一数据区域的底部和第一元数据区域的顶部之间形成第一连续空间。