公开(公告)号：US20200310666A1

公开(公告)日：2020-10-01

申请号：US16365695

申请日：2019-03-27

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Wen-Long Wang

IPC: G06F3/06 ,  G06F9/54

Abstract: A method for performing data-accessing management in a storage server and associated apparatus such as a host device, a storage device, etc. are provided. The method includes: in response to a client request of writing a first set of data into the storage server, utilizing the host device within the storage server to trigger broadcasting an internal request corresponding to the client request toward each storage device of a plurality of storage devices within the storage server; and in response to the internal request corresponding to the client request, utilizing said each storage device of the plurality of storage devices to search for the first set of data in said each storage device to determine whether the first set of data has been stored in any storage device, for controlling the storage server completing the client request without duplication of the first set of data within the storage server.

公开(公告)号：US20200051623A1

公开(公告)日：2020-02-13

申请号：US16656533

申请日：2019-10-17

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Hsiao-Te Chang ,  Wen-Long Wang

IPC: G11C11/56 ,  G11C16/26 ,  G06F3/06 ,  G11C16/08

Abstract: A method for performing memory access includes: performing a first sensing operation corresponding to a first sensing voltage and performing at least a second sensing operation corresponding to a second sensing voltage to respectively generate a first digital value of a Flash cell of a Flash memory and a second digital value of the Flash cell of the Flash memory; using the first digital value, the second digital value, and charge distribution statistics information of the Flash memory to obtain soft information of a bit stored in the Flash cell, wherein the soft information corresponds to a threshold voltage of the Flash cell; and using the soft information to perform soft decoding.

公开(公告)号：US09627050B2

公开(公告)日：2017-04-18

申请号：US15213419

申请日：2016-07-19

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Hsiao-Te Chang ,  Wen-Long Wang

IPC: G11C16/04 ,  G11C11/56 ,  G11C16/26 ,  G06F3/06 ,  G11C16/08

CPC classification number: G11C11/5642 ,  G06F3/0604 ,  G06F3/0622 ,  G06F3/0629 ,  G06F3/0638 ,  G06F3/0679 ,  G11C11/5628 ,  G11C16/08 ,  G11C16/26

Abstract: A memory access module for performing memory access management of a storage device including a plurality of storage cells includes: sensing means for performing a plurality of sensing operations respectively corresponding to a plurality of different sensing voltages in order to generate at least a first digital value of a storage cell, wherein each subsequent sensing operation corresponds to a sensing voltage which is determined according to a result of the previous sensing operation; processing means for using the first digital value to obtain soft information of a bit stored in the storage cell; and decoding means for using the soft information to perform soft decoding.

公开(公告)号：US09239685B2

公开(公告)日：2016-01-19

申请号：US14327580

申请日：2014-07-10

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Hsiao-Te Chang ,  Wen-Long Wang

IPC: G11C16/06 ,  G06F3/06 ,  G11C11/56 ,  G11C16/26

CPC classification number: G11C11/5642 ,  G06F3/0604 ,  G06F3/0622 ,  G06F3/0629 ,  G06F3/0638 ,  G06F3/0679 ,  G11C11/5628 ,  G11C16/08 ,  G11C16/26

Abstract: A method for accessing a memory includes: utilizing a Flash memory to perform a plurality of sensing operations with a plurality of different sensing voltages respectively corresponding to the plurality of sensing operations; according to the plurality of sensing operations, generating a first digital value of a Flash cell of the Flash memory; according to the plurality of sensing operations and the first digital value, generating at least a second digital value of the Flash cell; and obtaining soft information of the Flash cell according to the second digital value. The first digital value and the second digital value are used for determining information of a same bit stored in the Flash cell, a number of possible bit(s) of the Flash cell directly corresponds to a number of possible states of the Flash cell, and the obtained soft information is used for performing soft decoding.

Abstract translation: 一种用于访问存储器的方法包括：利用闪速存储器执行多个感测操作，所述感测操作具有分别对应于所述多个感测操作的多个不同感测电压; 根据所述多个感测操作，产生所述闪存的闪存单元的第一数字值; 根据所述多个感测操作和所述第一数字值，生成所述闪存单元的至少第二数字值; 并根据第二数字值获取闪存单元的软信息。 第一数字值和第二数字值用于确定存储在闪存单元中的相同位的信息，闪存单元的可能位的数量直接对应于闪存单元的可能状态的数量，以及 所获得的软信息用于执行软解码。

公开(公告)号：US08867270B2

公开(公告)日：2014-10-21

申请号：US13944866

申请日：2013-07-17

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Hsiao-Te Chang ,  Wen-Long Wang

IPC: G11C16/04

CPC classification number: G11C11/5642 ,  G06F3/0604 ,  G06F3/0622 ,  G06F3/0629 ,  G06F3/0638 ,  G06F3/0679 ,  G11C11/5628 ,  G11C16/08 ,  G11C16/26

Abstract: A method for performing memory access management includes: with regard to a same Flash cell of a Flash memory, receiving a first digital value outputted by the Flash memory, requesting the Flash memory to output at least one second digital value, wherein the first digital value and the at least one second digital value are utilized for determining information of a same bit stored in the Flash cell, and a number of various possible states of the Flash cell correspond to a possible number of bit(s) stored in the Flash cell; based upon the second digital value, generating/obtaining soft information of the Flash cell, for use of performing soft decoding; and controlling the Flash memory to perform sensing operations by respectively utilizing a plurality of sensing voltages that are not all the same, in order to generate the first digital value and the second digital value.

Abstract translation: 一种用于执行存储器存取管理的方法包括：关于闪速存储器的相同闪存单元，接收闪速存储器输出的第一数字值，请求闪速存储器输出至少一个第二数字值，其中第一数字值 并且所述至少一个第二数字值用于确定存储在所述闪存单元中的相同位的信息，并且所述闪存单元的多个可能状态的数量对应于所述闪存单元中存储的可能数量的位; 基于所述第二数字值，生成/获取所述闪存单元的软信息，以用于执行软解码; 以及通过分别利用不完全相同的多个感测电压来控制闪存以执行感测操作，以便产生第一数字值和第二数字值。

公开(公告)号：US12277966B2

公开(公告)日：2025-04-15

申请号：US18522128

申请日：2023-11-28

Applicant: Silicon Motion, Inc.

Inventor： Tsung-Chieh Yang ,  Hsiao-Te Chang ,  Wen-Long Wang

IPC: G11C11/56 ,  G06F3/06 ,  G11C16/08 ,  G11C16/26

Abstract: A method for performing memory access of a Flash cell of a Flash memory includes: performing a series of sensing operations respectively corresponding to a plurality of sensing voltages, wherein a sensing voltage of a specific sensing operation of the series of sensing operations has a sensing voltage determined according to a result of an initial sensing operation of the series of sensing operations; determining a threshold voltage of the Flash cell according to at least a digital value generated by the series of sensing operations; and using the determined threshold voltage to perform soft decoding of the Flash cell.

公开(公告)号：US20220301620A1

公开(公告)日：2022-09-22

申请号：US17832680

申请日：2022-06-05

Applicant: Silicon Motion, Inc.

Inventor： Tsung-Chieh Yang ,  Hsiao-Te Chang ,  Wen-Long Wang

IPC: G11C11/56 ,  G11C16/26 ,  G06F3/06 ,  G11C16/08

Abstract: A method for performing memory access of a Flash cell of a Flash memory includes: performing a plurality of sensing operations respectively corresponding to a plurality of sensing voltages to generate a first digital value and a second digital value of the Flash cell, the second digital value representing at least one candidate threshold voltage of the Flash cell; determining a threshold voltage of the Flash cell according to whether the at least one candidate threshold voltage is high or low; determining soft information of a bit stored in the Flash cell according to the threshold voltage of the Flash cell; and using the soft information to perform soft decoding.

公开(公告)号：US11209984B2

公开(公告)日：2021-12-28

申请号：US16278182

申请日：2019-02-18

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Wen-Long Wang

IPC: G06F3/06

Abstract: A method for performing data-compression management in a storage server may include: receiving data from a host device; performing entropy detection on a plurality of sets of partial data to generate entropy detection values of the plurality of sets of partial data, respectively; classifying the plurality of sets of partial data according to the entropy detection values of the plurality of sets of partial data, respectively, to perform data compression on at least one portion of the plurality of sets of partial data through a plurality of data compression modules, respectively, wherein the plurality of data compression modules correspond to different compression capabilities, respectively; and storing the plurality of sets of partial data into at least one storage device of the storage server and recording address mapping information of the plurality of sets of partial data, respectively. An associated apparatus is also provided.

公开(公告)号：US20210271650A1

公开(公告)日：2021-09-02

申请号：US17140147

申请日：2021-01-04

Applicant: Silicon Motion, Inc.

Inventor： Wen-Long Wang ,  Yu-Teng Chiu ,  Yi-Feng Lin

IPC: G06F16/215 ,  G06F9/54

Abstract: A method for performing deduplication management with aid of a command-related filter and associated apparatus are provided. The method may include: utilizing at least one program module among multiple program modules running on a host device within the storage server to control the storage server to write multiple sets of user data of a user of the storage server into a storage device layer of the storage server, and utilizing a fingerprint-based deduplication management module among the multiple program modules to create and store multiple fingerprints into a fingerprint storage of the storage server to be respective representatives of the multiple sets of user data at the storage server, for minimizing calculation loading regarding deduplication control; and utilizing the command-related filter to at least convert a set of commands into a single command to eliminate unnecessary command(s), for executing the single command rather than all of the set of commands.

公开(公告)号：US10884642B2

公开(公告)日：2021-01-05

申请号：US16365695

申请日：2019-03-27

Applicant: Silicon Motion Inc.

Inventor： Tsung-Chieh Yang ,  Wen-Long Wang

IPC: G06F3/06 ,  G06F9/54

Abstract: A method for performing data-accessing management in a storage server and associated apparatus such as a host device, a storage device, etc. are provided. The method includes: in response to a client request of writing a first set of data into the storage server, utilizing the host device within the storage server to trigger broadcasting an internal request corresponding to the client request toward each storage device of a plurality of storage devices within the storage server; and in response to the internal request corresponding to the client request, utilizing said each storage device of the plurality of storage devices to search for the first set of data in said each storage device to determine whether the first set of data has been stored in any storage device, for controlling the storage server completing the client request without duplication of the first set of data within the storage server.