Device and method for saving wireless data

Abstract

The invention discloses a device for saving wireless data, which comprises a wireless transmission unit, a data saving control unit and a data saving unit, wherein the wireless transmission unit is used for creating connection and a data channel between the device and an external data processing system; the wireless transmission unit comprises a wireless receiver, a wireless emitter and a protocol processing unit; the protocol processing unit is used for analyzing data packets from the external data processing system; the data saving unit is used for saving data to realize an external storage function of the external data processing system; the data saving control unit is used for communicating with the wireless transmission unit and controlling read-write operation of the data saving unit; the data saving control unit comprises a first interface exchanging data with the wireless transmission unit and a second interface communicating with the data saving unit; and the device further comprises a system interface unit exchanging data with the external data processing system, and an identification code unit connected with the data saving control unit for identifying the identification code.

Description

[0001] This application is a divisional application of the Chinese patent application with the application number 200410007542.8 and the title of invention "wireless data storage device and method" submitted to the China Patent Office on February 27, 2004. technical field [0002] The invention relates to the transmission and processing of data information, in particular to an external storage device and method of a data processing system. Background technique [0003] Various data processing systems such as computers use various external storage devices to store large-capacity data, expand system processing capabilities, back up important files and / or share data. With the development of information technology, products such as floppy disks, removable hard disks, MO, CD-RW, ZIP disks, and FLASH (flash memory) storage devices have come out. [0004] However, the existing external storage devices all have certain defects. Among them, the capacity of the floppy disk is relativ...

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Problems solved by technology

[0007] Among them, FLASH mobile memory card is currently widely used in consumer electronic products such as digital cameras and MP3 players. The disadvantages are: first, electronic products need to provide some hardware interfaces to complete data access, and the increase of hardware interfaces will occupy electronic resources. The space of the product increases its cost; secondly, it cannot directly exchange data with the computer, and needs to exchange data with the computer through a special card reader, which is complicated to use and increases additional expenses, and the card reader is usually not compatible with all mobile memory cards; In addition, the use of the card reader is also inconvenient for those who require high portability

[0008] The USB flash drive of prior art adopts universal serial bus interface as the interface of exchanging data with computer, can directly exchange data with computer, but it also has defect: first, has the dependence to external device hardware, promptly if certain data processing The system needs to use a USB flash drive as an external storage device, so when there are many external storage devices, it must be equipped with a USB interface. For small wireless portable devices, it will take up too much space and increase costs; secondly, the convenience of using a USB flash drive There is still room for improvement, because frequent plugging and unplugging cannot be avoided when using a USB flash drive, and irregular operations are likely to destroy the data in the USB flash drive and even affect the USB flash drive hardware.

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