Patent ID: 6757783
Filing Date: 2004-06-29
Classification: G06F,G06K

Abstract:
A portable storage medium, based on USB standard, connected to a USB port of a host computer applying UFI protocol, comprising:a USB connector through which the storage medium is physically connected to the USB port of the host computer; at least one nonvolatile flash memory for storing data transmitted from the host computer; a program storage for storing a predetermined operation program based on USB and UFI; and a controller for controlling the entire operation of the storage medium based on the predetermined operation program stored in the program storage, wherein the predetermined operation program of the program storage includes a memory processing block for checking and updating header block information of the flash memory, a device recognition processing block for transmitting device descriptor information and interface descriptor information for loading a UFI driver to the host computer, and a UFI processing block for generating predetermined UFI response packets by UFI commands sent from the host computer to transmit them to the host computer.