US 8,275,932 B2Granted

Method for transmitting special commands to flash storage device

AssigneeSilicon Motion, Inc.

InventorWei-Qing Li

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Abstract

The invention provides a data storage system. In one embodiment, the data storage system comprises a host and a flash storage device. The host sends a series of first access commands for accessing a plurality of special files to the flash storage device. The flash storage device having the stored plurality of special files and a command-symbol mapping table, sequentially generates a plurality of first digits respectively corresponding to the special files accessed by the first access commands to obtain a first data stream, converts the first data stream to a plurality of first special commands according to the command-symbol mapping table, and performs operations according to the first special commands. Each of the special files corresponds to a digit, the command-symbol mapping table records a corresponding relationship between a plurality of symbols and a plurality of special commands, and each of the symbols comprises a plurality of digits.

Claims18

Dependent claims

A method for transmitting commands to a flash storage device, wherein the flash storage device is coupled to a host, comprising:

storing a plurality of predetermined files in the flash storage device, wherein each of the predetermined files corresponds to a digit;
storing a command-symbol mapping table in the flash storage device, wherein the command-symbol mapping table records a corresponding relationship between a plurality of symbols and a plurality of predetermined commands, and each of the symbols comprises a plurality of digits;
the host sending a series of first access commands for accessing the predetermined files to the flash storage device;
the flash storage device sequentially generating a plurality of first digits respectively corresponding to the predetermined files accessed by the first access commands to obtain a first data stream;
the flash storage device slicing the first data stream to generate a plurality of first symbols according to a digit number indicating the number of digits comprised by a symbol;
the flash storage device converting the first symbols to a plurality of first predetermined commands according to the command-symbol mapping table;
and
the flash storage device performing operations according to the first predetermined commands.

5 more elements

A flash storage device, coupled to a host, comprising:

a flash memory, storing a plurality of predetermined files and a command-symbol mapping table, wherein each of the predetermined files corresponds to a digit, the command-symbol mapping table records a corresponding relationship between a plurality of symbols and a plurality of predetermined commands, and each of the symbols comprises a plurality of digits;
and
a controller, receiving a plurality of access commands from the host, and when the access commands request the flash storage device to access the predetermined files, sequentially generating a plurality of first digits respectively corresponding to the predetermined files accessed by the access commands to obtain a first data stream, slicing the first data stream to generate a plurality of first symbols according to a digit number indicating the number of digits comprised by a symbol, converting the first symbols to a plurality of first predetermined commands according to the command-symbol mapping table, and performing operations according to the first predetermined commands.

A data storage system, comprising:

a host, sending a series of first access commands for accessing a plurality of predetermined files to a flash storage device;
and
the flash storage device, coupled to the host, storing the plurality of predetermined files and a command-symbol mapping table, sequentially generating a plurality of first digits respectively corresponding to the predetermined files accessed by the first access commands to obtain a first data stream, slicing the first data stream to generate a plurality of first symbols according to a digit number indicating the number of digits comprised by a symbol, converting the first symbols to a plurality of first predetermined commands according to the command-symbol mapping table, and performing operations according to the first predetermined commands,
wherein each of the predetermined files corresponds to a digit, the command-symbol mapping table records a corresponding relationship between a plurality of symbols and a plurality of predetermined commands, and each of the symbols comprises a plurality of digits.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 12/539,099Filed 11 Aug 2009
Priority: TW 98105069 A18 Feb 2009
Published: US 2010/0211722 A119 Aug 2010
Granted: 25 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G06F 12/0246
Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory: in block erasable memory, e.g. flash memory
G06F 2212/7201
Details relating to flash memory management: logical to physical mapping or translation of blocks or pages
G06F
Computing and data processing

Family

US 2010/0211722 A1Pre-grant publication · published 19 Aug 2010
US 8,275,932 B2This patent

From the US filing history. Foreign family members aren’t listed.

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