Method and system for managing partitions in a storage device

1. A mass storage device, comprising:

re-programmable non-volatile memory cells, the memory cells being arranged in a plurality of blocks of memory cells that are erasable together and which are connected together in a plurality of series strings to define rows of memory cells for storing data, wherein the memory cells are divided into at least two memory partitions including a first memory partition and a second memory partition, and each memory partition has a system area and a data area; and

a memory controller embedded within the mass storage device and coupled to access the re-programmable non-volatile memory cells, the memory controller adapted to receive data via a logical interface from an external host system;

wherein the memory controller is adapted to re-allocate memory storage space from the first memory partition to the second memory partition using a mapping table, wherein the mapping table includes a virtual block address for each of the first memory partition and the second memory partition, wherein memory storage space re-allocated from the first memory partition to the second memory partition appears contiguous to the external host.

2. The mass storage device of claim 1 , wherein the mapping table further includes a logical block address for each of the first memory partition and the second memory partition, wherein the mapping table maps the virtual block addresses to the logical block addresses.

3. The mass storage device of claim 1 , wherein the memory controller re-allocates memory storage space from the first memory partition to the second memory partition when the second memory partition is either full or has reached a threshold value.

4. The mass storage device of claim 2 , wherein the virtual block address and the logical block address of the first memory storage partition are the same before the memory storage space is re-allocated from the first memory partition to the second memory partition, and the virtual block address and the logical block address of the first memory storage partition are different after the memory storage space is re-allocated from the first memory partition to the second memory partition.

5. The mass storage device of claim 1 , wherein the system area for each of the first memory partition and the second memory partition includes storage space to store File Allocation Table (“FAT”) entries, wherein the FAT entries for the first memory partition and the second memory partition are adjusted when free memory space is allocated from the first memory partition to the second memory partition.

6. The mass storage device of claim 1 , wherein a file name entry in a directory is adjusted when free memory space is allocated from the first memory partition to the second memory partition.

7. The mass storage device of claim 1 , wherein the mass storage device is a flash memory device.

8. The mass storage device of claim 1 , wherein the mass storage device is a non-volatile memory storage device.

9. The mass storage device of claim 1 , wherein the external host system comprises one of a computer, a telephone, a personal digital assistant (PDA), a digital still camera, a digital movie camera, and a portable audio player.

10. The mass storage device of claim 7 , wherein the flash memory device includes one of a CompactFlash (CF) card, a MultiMediaCard (MMC) card, a Secure Digital (SD) card, a miniSD card, a Memory Stick card, and a TransFlash card.

11. The mass storage device of claim 1 , wherein the logical interface comprises a Universal Serial Bus (USB) interface.

12. A mass storage device, comprising:

non-volatile memory cells including a first memory partition and a second memory partition; and

a memory controller embedded within the mass storage device and coupled to access the non-volatile memory cells, the memory controller adapted to receive data via a logical interface from an external host device;

wherein the memory controller is adapted to re-allocate memory storage space from the first memory partition to the second memory partition by using a mapping table,

wherein the mapping table includes a logical block address and a virtual block address for each of the first memory partition and the second memory partition, wherein the memory storage space re-allocated from the first memory partition to the second memory partition appears contiguous to the external host device.

13. The mass storage device of claim 12 , wherein the external host device comprises one of a computer, a telephone, a personal digital assistant (PDA), a digital still camera, a digital movie camera, and a portable audio player.

14. The mass storage device of claim 12 , wherein the mass storage device is a flash memory device.

15. The mass storage device of claim 14 , wherein the flash memory device includes one of a CompactFlash (CF) card, a MultiMediaCard (MMC) card, a Secure Digital (SD) card, a miniSD card, a Memory Stick card, and a TransFlash card.

16. The mass storage device of claim 12 , wherein the virtual block address and the logical block address of the first memory storage partition are the same before the memory storage space is re-allocated from the first memory partition to the second memory partition, and the virtual block address and the logical block address of the first memory storage partition are different after the memory storage space is re-allocated from the first memory partition to the second memory partition.

17. A mass storage device, comprising:

non-volatile memory cells including a first memory partition and a second memory partition; and

a memory controller embedded within the mass storage device and coupled to access the non-volatile memory cells, the memory controller adapted to receive data via a logical interface from a host device;

wherein the memory controller is adapted to re-allocate memory storage space from the first memory partition to the second memory partition by using a mapping table;

wherein the mapping table includes a logical block address and a virtual block address for each of the first memory partition and the second memory partition;

wherein the memory storage space re-allocated from the first memory partition to the second memory partition appears contiguous to the host device; and

wherein the virtual block address and the logical block address of the first memory storage partition are the same before the memory storage space is re-allocated from the first memory partition to the second memory partition, and the virtual block address and the logical block address of the first memory storage partition are different after the memory storage space is re-allocated from the first memory partition to the second memory partition.