Abstract: A system, a controller, and a method for data storage are provided. The system includes a first storage unit, a second storage unit, and a controller. The first storage unit comprises a single-layer structure for storing data, and the second storage unit comprises a multi-layer structure for storing data. The controller is coupled to the first storage unit, the second storage unit, and a host and controls the host to set the first storage unit as a master storage device and set the second storage unit as a slave storage device. As a result, the host can recognize the first storage unit and the second storage unit as two independent storage devices for storing data. Thereby, the data storage process can be simplified.

Abstract: The present invention discloses a data access method accomplished by the following steps of: creating a predetermined password; generating a first encryption key; encrypting data based on the first encryption key; prompting for the predetermined password upon receipt of an access request; decoding a header of the NAND flash memory based on a user-entered password; examining the header to determine whether a mapping between the user-entered password and the first encryption key is defined; and decrypting and outputting the data by a decryption key when the mapping between the user-entered password and the first encryption key is defined.

Abstract: A data writing method for a non-volatile memory and a storage system and a controller using the same are provided. The data writing method includes executing a non-volatile memory writing program pre-stored in the non-volatile memory on a host, managing data desired to be written through the non-volatile memory writing program, executing a write-enabling command to temporarily disable a write protection of the non-volatile memory and executing a write command through the non-volatile memory writing program to write the data in a writing unit not recorded with any data in the non-volatile memory, and re-enabling the write protection after completing the writing by executing a write-protecting command. Accordingly, it is possible to avoid damage to the non-volatile memory due to multiple writings which are not desired in the non-volatile memory.

Abstract: A system, a controller, and a method for data storage are provided. The system includes a first storage unit, a second storage unit, and a controller. The first storage unit comprises a single-layer structure for storing data, and the second storage unit comprises a multi-layer structure for storing data. The controller is coupled to the first storage unit, the second storage unit, and a host and controls the host to set the first storage unit as a master storage device and set the second storage unit as a slave storage device. As a result, the host can recognize the first storage unit and the second storage unit as two independent storage devices for storing data. Thereby, the data storage process can be simplified.

Abstract: The present invention discloses a data access method accomplished by the following steps of: creating a predetermined password; generating a first encryption key; encrypting data based on the first encryption key; prompting for the predetermined password upon receipt of an access request; decoding a header of the NAND flash memory based on a user-entered password; examining the header to determine whether a mapping between the user-entered password and the first encryption key is defined; and decrypting and outputting the data by a decryption key when the mapping between the user-entered password and the first encryption key is defined.

Abstract: The present invention discloses an integrating data processing system. The system includes a master device with a host interface for processing data, at least one NAND flash memory unit having a unit interface, and a flash memory controller. For controlling access to the NAND flash memory unit, the flash memory controller is provided with a first interface connected with the host interface of the master device, and a second interface connected with the unit interface of the NAND flash memory unit. The first interface is identical to the unit interface of the flash memory and the second interface is identical to the host interface of the master device. The master device can access the NAND flash memory unit via the flash memory controller thereby facilitating to fit in with the development of new flash memory device without upgrading the original master device.

Abstract: A device is proposed for transferring from a memory card interface to a USB (Universal Serial Bus) interface. There are a universal I/O device able to simulate signals from a memory card interface; a micro controller able to control the universal I/O device to access the data in the memory card and to generate a USB data package; a USB serial interface engine able to transfer the USB data package from the micro controller to a serial data stream; and a USB transfer/receive device able to connect to a USB storage device and to transfer the serial data stream to a USB electrical signal.

Abstract: A device installed in a computer system for protecting the program or data inside a programmable non-volatile memory. The device includes a first and a second combinatorial logic circuit, a delay circuit, a low-enable latching device with reset capability, an AND gate and a memory cell array. As soon as all the necessary system startup operations dictated by the BIOS program inside the memory cell array are executed and a specified memory read/write program that matches the preset internal parameters of a logic circuit is activated so that output from the AND gate is a logic ‘false’, the memory cell array is permanently locked in a non-programmable state, unless the power is turned off and then restarted again. There is no way for any software program to change the programming state of the memory cell array back to a re-programming state again. Hence, the device is an effective means of protecting the programs inside the memory from illegal tampering.

Abstract: A method for reducing the travel time for an optical pick-up and an apparatus thereof are provided to precisely control the tracking of said optical pick-up. The method comprises the steps of: (i) detecting the number of revolutions of the optical disc to determine the number of track-jumping signals produced in a unit time due to the rotation of the optical disc; and (ii) adding the number of track-jumping signals obtained in step(i) to the number of track-jumping signals detected in a unit time by the pick-up controller in the case that the optical pick-up moves outwardly, and subtracting the number of track-jumping signals obtained in step(i) from the number of track-jumping signals detected in a unit time by the pick-up controller in the case that the optical pick-up moves inwardly.