Non-volatile memory device and data access circuit and data access method
AssigneeTranscend Information, Inc.
InventorChun-Yu Hsieh
Life of this patent
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Abstract
A non-volatile memory device, a data access circuit and a data access method are provided. The non-volatile memory device includes a main controller, a plurality of sub-controllers and a plurality of memory blocks. The sub-controllers are coupled to the main controller and are used to execute the tasks assigned by the main controller. The memory blocks are respectively coupled to the corresponding sub-controllers. The main controller is used to divide a received main data into a plurality of sub-data, and the sub-data are respectively saved in the memory blocks through corresponding sub-controllers. Therefore, the data access speed of the non-volatile memory device is substantially speeded-up.
Claims14
A non-volatile memory device, comprising:
- a main controller;
- a plurality of sub-controllers, coupled to the main controller for executing tasks assigned by the main controller;
- and
- a plurality of memory blocks, respectively coupled to the sub-controllers,
- wherein the main controller is used to divide a received main data into a plurality of first sub-data and the first sub-data are respectively saved in the memory blocks through the sub-controllers;
- wherein the main controller also saves a backup of the first sub-data in a different memory block than that used to store the first sub-data.
A data access circuit adapted to a non-volatile memory having a plurality of memory blocks, the data access circuit comprising:
- a main controller;
- and
- a plurality of sub-controllers, respectively coupled to the memory blocks,
- wherein the main controller is used to divide a received main data into a plurality of first sub-data and the first sub-data are respectively saved in the memory blocks through the sub-controllers;
- wherein the main controller also saves a backup of the first sub-data in a different memory block than that used to store the first sub-data.
A data access method, adapted to a non-volatile memory having a plurality of memory blocks and each of the memory blocks having a plurality of sub-memory blocks, the data access method comprising:
- receiving a main data;
- dividing the main data into a plurality of first sub-data and respectively saving the first sub-data into the memory blocks;
- and
- saving a backup of the first sub-data in a different memory block than that used to store the first sub-data.
Dependencies are inferred from the claim text.