Phison Electronics Corporation

Chien-Fu Lee

Ming-Chou Wu

Jiunn-Yeong Yang

Tsung-Lin Wu

Te-Chang Tsui

A data protecting method and a memory storage device are provided. The data protecting method includes reading a first string from the rewritable non-volatile memory module to obtain a data string; performing a decoding operation based on the data string to obtain block information corresponding to a plurality of physical erasing units; inputting the block information to an error checking and correcting (ECC) circuit of the memory storage device to generate a second string; and storing the second string into the rewritable non-volatile memory module.

Data protecting method and memory storage device

A data accessing method and system for a memory storage apparatus are provided. The method includes: performing a near field communication between a memory storage apparatus and an electronic apparatus, and receiving a first password from the electronic apparatus by the memory storage device in the near field communication. The method also includes: recording the first password in a memory unit of the memory storage apparatus. The method further includes: when the memory storage apparatus is not connected to the electronic apparatus or a host in a predetermined time after the memory storage apparatus receives the first password, deleting the first password recorded in the memory unit; and when the first password recorded in the memory unit is the same as a second password in the memory storage apparatus, allowing the electronic apparatus or the host to access the memory storage apparatus by the memory storage apparatus.

Data accessing method and system and memory storage apparatus

A memory formatting method adapted to a memory storage apparatus is provided. The memory formatting method includes configuring a plurality of logical block addresses to be mapped to a portion of a plurality of physical blocks, generating a first file system data and a second file system data according to the size of the logical block addresses, and storing the first file system data into a first physical block, and the first physical block is mapped to a first logical block address among the logical block addresses. The memory formatting method also includes selecting a second physical block among the physical blocks, storing the second file system data into the second physical block, determining whether a format command is received, and when the format command is received, re-mapping the first logical block address to the second physical block.

Memory formatting method, memory controller, and memory storage apparatus

A controlling method of a rewritable non-volatile memory module, and a memory controller and a data transmission system using the same are provided. The controlling method includes following steps. A command is received from a host system. Whether the command is a configuration command is determined according to a command code of the command. A plurality of action information in the configuration command and an execution sequence corresponding to the action information are analyzed. The action information is executed according to the execution sequence. Each action information is configured to request the rewritable non-volatile memory module to execute a predetermined action. Thereby, the functionality of a memory storage device can be dynamically extended.

Controlling method, memory controller, and data transmission system

A file protecting method and system and a memory controller and a memory storage apparatus using the same are provided. The file protecting method includes performing a file protection enabling procedure for a file to generate an entry value backup according to at least one entry value corresponding to at least one cluster storing the file, which is recorded in a file allocation document, store the entry value backup in a secure storage area and change the entry value corresponding to the cluster storing the file in the file allocation document, wherein the file cannot be read according to the changed entry value. Accordingly, the file stored in the memory storage apparatus the can be effectively protected from being accessed by an un-authorized person.

File protecting method and system, and memory controller and memory storage apparatus thereof

A controller capable of preventing spread of computer viruses is provided. The controller includes a microprocessor unit, and a first interface unit, a second interface unit, a comparing unit and a filter unit which are coupled to the microprocessor unit. The first interface unit is coupled to a storage medium, and the second interface unit is coupled to a computer host. The comparing unit determines whether data read form the storage medium by the computer host is an automatic executing file. And, the filter unit replaces the read data with a predetermined data and transmit the predetermined data to the computer host when the read data is the automatic executing file. Accordingly, the controller is capable of preventing the spread of the computer viruses designed in an automatic executing file.

Controller capable of preventing spread of computer viruses and storage system and method thereof

A data access method for writing data into a storage apparatus is provided, wherein the storage apparatus has a storage unit, the storage unit has a partition, the storage property of the partition is set as a write protect mode and the storage apparatus is coupled to a host system having an operation system. The data access method includes transmitting a command from the host system to the storage apparatus through a human interface device path and setting the storage property of the first partition as a writable mode in response the command. The data access method also includes storing data into the partition by using built-in commands of the operation system. Accordingly, the data access method can write data into a partition that has been at the write protect mode when a user logins the operation system with a limited user authority mode.

Data access method and system, storage medium controller and storage system

A file executing method for executing a computer executable code set stored in a hidden storage area of a storage device in an operating system of a computer host is provided. The method includes connecting the storage device to the computer host and providing a loader for managing the computer executable code set. The method also includes running the loader in a main memory of the computer host, requesting the operating system to allocate a first address segment in the main memory for running the loader, loading the computer executable code set from the hidden storage area into the first address segment by using the loader, transforming the computer executable code set into an executable content of the operation system by using the loader and storing the executable content into the first address segment; and establishing a derivative execution procedure by using the loader to execute the executable content.

Method and system for executing a file stored in a hidden storage area of a storage device

A memory configuring method for a memory storage apparatus is provided, wherein a rewritable non-volatile memory module of the memory storage apparatus has a plurality of physical blocks. The method includes receiving a plurality of query commands from a host system, identifying a pattern corresponding to the query commands and recognizing a type of an operating system executed on the host system. The method further includes configuring the rewritable non-volatile memory module according to the type of the operating system and announcing a configuration of the memory storage apparatus to the host system. Accordingly, the method can configure the non-volatile memory module according different operating systems, and thereby the memory storage apparatus can successfully receive commands and re-set according to user's demand.

Memory configuring method, memory controller and memory storage apparatus

A memory configuring method for a memory storage apparatus is provided, wherein a rewritable non-volatile memory module of the memory storage apparatus has a plurality of physical blocks. The method includes recording pattern information corresponding to a plurality of various operation system platforms in an initial session table. The method also includes receiving a plurality of handshaking query commands from a host system, identifying a pattern corresponding to the handshaking query commands and recognizing a type of an operation system executed on the host system according the pattern corresponding to the handshaking query commands and the patter information stored in the initial session table. The method further includes configuring the rewritable non-volatile memory module according to the type of the operation system and announcing a configuration of the memory storage apparatus to the host system. Accordingly, the method can configure the rewritable non-volatile memory module according different operation systems.

A memory storage device, a memory controller, and a virus scanning method are provided. In the method, a virus signature database recording a predetermined file segment and a corresponding virus signature is provided. A plurality of logical addresses is mapped to a part of a plurality of physical addresses in a rewritable non-volatile memory chip of the memory storage device, a host system accesses the logical addresses by using a file system including a file allocation table (FAT). At lease one binary code is received. The FAT is analyzed to identify a file segment containing the at least one binary code. If the file segment matches the predetermined file segment, the at least one binary code is not written into the memory storage device or transmitted back to the host system when the at least one binary code matches the virus signature corresponding to the predetermined file segment.

Memory storage device and memory controller and virus scanning method thereof

An application executing method for automatically executing an application stored in a storage unit of an external storage device in an operating system (OS) of a computer host is provided. The method includes dividing the storage unit into a first partition and a second partition; emulating the first partition as compact disc-read only memory (CR-ROM); storing a switch program in the first partition; and storing the application in the second partition. The method also includes providing only the first partition to be accessed by the OS and automatically executing the switch program by the OS to decouple and re-couple the external storage device to the computer host. Additionally, the method further includes providing only the second partition to be accessed by the OS and executing the application when the external storage device is re-coupled to the computer host.

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Yunlin County, Taiwan

Chien-Fu Lee