Portable readable and writable memory with USB interface and its data management method

Abstract

There is a portable accessing memorizer which has a USB interface, it includes the outer shell and the control circuit in the shell, the control circuit includes USB interface, flash memory, CPU buffer memory; The CPU accomplishes address selecting and D / A conversion, its port connects to USB, flash mmeory, buffer memory. The CPU port also connects to infrared module or radio frequency identification module which has a inductive antenna. The invention has a big storage quantity, high reliability, it is portable, it not only can integrate radio frequency identification instruments or wireless receiving groupware, it is used as the communication interface of personal computer, but also can be a identificatino instrument of personal identity. On the other hand, it can encrypt the data perfectly and manage the accessing of data.

Description

technical field [0001] The invention relates to a readable and writable memory and a data management method thereof, in particular to a portable readable and writable memory with a USB interface and a data management method thereof. Background technique [0002] At present, in mobile storage devices, there is a common purpose that cannot be truly mobile for storage. Most of them are inconvenient to carry because of their large size, such as external hard disks, external recorders, ZIP, MO, etc. These devices can provide large-capacity storage But lack of mobility. As a portable memory, for example, a floppy disk, not only the dedicated drive takes up a large volume, but also consumes a lot of energy and noise, and because the floppy drive runs slowly, the storage space is small, and the reliability of data storage is low. In addition to its characteristics, because the floppy disk itself is a portable product, it is prone to physical damage during use, so the existing memor...

AI Technical Summary

Problems solved by technology

[0002] At present, in mobile storage devices, there is a common purpose that cannot be truly mobile for storage. Most of them are inconvenient to carry because of their large size, such as external hard disks, external recorders, ZIP, MO, etc. These devices can provide large-capacity storage but lack of mobility

As a portable memory, for example, a floppy disk, not only the dedicated drive takes up a large volume, but also consumes a lot of energy and noise, and because the floppy drive runs slowly, the storage space is small, and the reliability of data storage is low. In addition to its characteristics, because the floppy disk itself is a portable product, it is prone to physical damage during use, so the existing memory is already insufficient in practicality, but because of its low cost, there has been no high-efficiency and low-cost invention that can replace it. The advent of floppy drives and floppy disks also survived

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