Interface for extending functionality of memory cards

摘要

A flash memory card, including a memory and a wireless modem for downloading remote directory listings and media files and streams over the Internet, and a driver for the flash memory card for managing a system of files and directories in the memory, and for invoking an action directed to the wireless modem, wherein the action is associated by the driver with a designated file system command.

主权项

1. An enhanced flash memory card, comprising:
a flash memory card, comprising:
a wireless modem for downloading remote directory listings, and media files and streams over the Internet; anda memory partitioned into physical data storage clusters; and a driver for said flash memory card (i) for managing a file allocation table (FAT) that stores information about physical and virtual data storage clusters, the physical clusters being mapped to real locations in said memory and the virtual clusters having addresses that are higher than the highest address of any real location in said memory, the FAT including stub files for remote directory listings and remote media files and streams, wherein the stub files point to virtual data clusters, (ii) for managing a download conversion map from virtual cluster numbers to pointers of remote media files and streams, and (iii) for storing downloaded directory listings and media files and streams in the physical data storage clusters.