Skymedi Corporation

Fu-Ja Shone

Yung-Li Ji

Chin-Nan Yen

Chih-Nan Yen

Yu-Mao Kao

Hsin-Hsien Wu

Chih Nan Yen

Chih-Wei Tsai

Chuang Cheng

Wen-Lin Chang

Shih Chieh Tai

Shih-Chieh Tai

Satashi Sugawa

Chung-Chiang Chew

A nonvolatile storage device buffers multiple write commands and selects one or more therefrom according to a choosing policy to execute in priority, so as to increase the probability of continuously executing write commands corresponding to an identical smallest erasable unit, thereby reducing the frequency of backup, erasing and copyback operations and improving the efficiency of the nonvolatile storage device.

Nonvolatile storage device with NCQ supported and writing method for a nonvolatile storage device

A non-volatile memory system and a method for reading data therefrom are provided. The data comprises a first sub-data and a second sub-data. The non-volatile memory system comprises a first storage unit and a second storage unit, adapted for storing the two sub-data respectively. The first storage unit reads a first command from the controller, and stores the first sub-data temporarily as the first temporary sub-data according to the first command. The second storage unit reads a second command from the controller, and stores the second sub-data temporarily as the second temporary sub-data according to the second command. The first temporary sub-data is read from the first storage unit. Then, the first storage unit reads a third command from the controller. The second temporary sub-data is also read from the second storage unit while reading the third command. The time for reading data from the non-volatile memory system is reduced.

Non-volatile memory system and method for reading and storing sub-data during partially overlapping periods

A virtual SATA port multiplier and a virtual SATA device are provided for a SATA system. The virtual SATA port multiplier uses a SATA physical layer for data transfer between it and a SATA host, and a non-physical layer for direct data transfer between it and the virtual SATA device. Since the data transfer between the virtual SATA port multiplier and the virtual SATA device is not carried out by way of SATA physical layers, no physical layer circuits are required accordingly, thereby reducing the manufacturing cost, power consumption and hardware size of the SATA system.

Virtual SATA port multiplier, virtual SATA device, SATA system and data transfer method in a SATA system

A nonvolatile memory system has a controller chip connected to a memory medium and several nonvolatile memory chips. The memory medium stores program codes for the controller chip to distribute an operation of the nonvolatile memory chips upon an instruction over time, so as to decentralize the peak current caused by the operation and thereby improve the stability of the system.

Nonvolatile memory system and method of decentralizing the peak current in a nonvolatile memory system

A non-volatile memory device, and a method for accessing the non-volatile memory device are provided. The non-volatile memory device is connected to a host via a bus. The non-volatile memory device comprises an MCU. By independently processing the particular commands using only the auxiliary circuit, the MCU can cease to operate, thus saving power. By setting the bus into power saving mode when the non-volatile memory device is busy, the host and the non-volatile memory device would not communicate mutually, thus, saving power.

Non-volatile memory device, and method of accessing a non-volatile memory device

A flash memory system includes a path selector to determine to write to a non-volatile memory, a volatile memory or both the non-volatile memory and the volatile memory when the flash memory system is to write data. A record is stored in the non-volatile memory which is updated the status of the non-volatile memory after each one or more writing operations. When the flash memory system is powered on after a power loss, it could be recovered to a command executed prior to the power loss or to any checkpoint prior to the power loss by using the record.

Logged-based flash memory system and logged-based method for recovering a flash memory system

The block groups of a multiple data channel flash memory storage device are detected for defective blocks. The block group containing any defective blocks is divided into subgroups, each of which contains only defective blocks or only good blocks. The subgroups containing only good blocks are selected to establish a new block group having the same amount of blocks as that of the original block groups.

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Hsinchu, Taiwan

Fu-Ja Shone