Can with the mobile phone external memory module of computer interaction
Technical field
A kind of can with the mobile phone external memory module of computer interaction, use and to relate to mobile phone, palm PC (PAD), notebook and desktop computer etc., belong to the information equipment technical field.
Technical background
The development that the hyundai electronics infotech is advanced by leaps and bounds brings great convenience for people's life, work, and only short more than ten years are used in the exploitation of mobile phone (hereinafter to be referred as mobile phone), uses from a few peoples that almost everybody has now; Develop into online, send short messages, send out and receive Email, fax, take a picture, listen MP3, teleview and the application of other many coal bodies or the like from simple communication function.But along with the high speed development of application technology, the bottleneck that the capacity of storer has become mobile phone technique to further develop.Some manufacturers adopt the method that strengthens mobile phone EMS memory to solve problem, become big but the unfavorable problem of bringing is a volume, and it is stupid that external form becomes; For example commercial mobile phone external form on the market is just big many than regular handset external form, " ugly many ".Communicating by letter between mobile phone and the computer need be installed the special software that mobile-phone manufacturers provide on computers in addition, and be pretty troublesome in the use, and therefore in fact few people carry out this interaction.
Summary of the invention
Purpose of the present invention provides a kind of data external memory module that can use with the mobile phone of computer interaction; This design is to consider different cellphone subscribers, though often the software that uses is inequality, but these files are not constantly all to need to be installed on the mobile phone EMS memory, but just can use these relatively large files when needing, so bulky mass storage need not be designed in mobile phone again, but jumbo storer is designed to module in addition, large data is stored in the module, carry, by wireless network or data line and mobile phone realization two-way interaction, and on module, designed USB interface, and realized two-way interaction by this interface and desk-top or notebook, carry out exchanges data; When the USB mouth on the module is connected with desk-top or notebook, the module automatic cutout is connected with the data of mobile phone, when the USB mouth is connected with desk-top or notebook when being disconnected, when data line interface was inserted data port in the mobile phone, data chainning can be connected with mobile phone again automatically.On mobile phone or computing machine, can both read, write, delete the file in the module.
Technical scheme of the present invention is achieved like this: the external storage modular structure mainly is made up of the USB interface of the microprocessor MCU of mass storage, control system work, controlled data channel switch, metadata cache, standard; When adopting the data line connectivity scenario, the data line and a socket thereof that can be connected with the mobile phone memory socket is arranged on the module; When adopting the short-distance wireless communication scheme, increase wireless sending and receiving module, antenna, controlled time-sequence control module on the module; The FPDP of microprocessor MCU (I/O) is connected with the data port of mass storage; The D of microprocessor MCU
+, D
-Mouthful, the both positive and negative polarity of MCU power supply respectively with the USB interface in D
+, D
-The both positive and negative polarity of groove, power supply connects; The 3.3V power output of microprocessor MCU is connected with storer, or adopts outside DC-DC power transfer module to provide power supply to storer; And the both positive and negative polarity of the working power of data channel switch is connected with power positive cathode in the USB interface; The time-sequence control module when access hole of the control mouth difference control store of microprocessor MCU, data channel switch mouth, metadata cache mouth, wireless transmission and the work of wireless sending and receiving module; When the USB interface of module was connected with computer, microprocessor MCU control data censor key blocked automatically with the data of mobile phone and is connected, and set up and the communicating by letter of computer.
Mass storage can be a micro hard disk, also can be " flash memory " class chip, and when adopting hard disk to make storer, modular structure increases a lithium battery, for system provides power supply; When storer adopted " flash memory " class chip, modular structure can be without external battery.
She Ji beneficial effect is like this: 1, and the whole moulding of mobile phone still can have the light and handy outward appearance of fashion as existing mobile phone, has also realized the purpose of operation mass file on mobile phone simultaneously; 2, by module, mobile phone can with any computing machine interaction with USB interface, the specific drivers of mobile phone need not be installed again, use simple; 3, on mobile phone or computing machine, can both read, write, delete the file in the module.
Description of drawings
Fig. 1 is electric functional-block diagram.
Fig. 2 is a structure outside drawing of opening shell.
Among Fig. 2, data-interface (1), USB interface (2), microprocessor MCU (3), buffer memory (4), storer (5), data channel switch (6), circuit board (7), housing (8), data line (9).
Embodiment
Figure (2) is the module example structure that adopts data line to be connected with mobile phone, the storer that adopts is high capacity " flash memory ", and whole hardware system is by data-interface (1), USB interface (2), microprocessor MCU (3), buffer memory (4), storer (5), data channel switch (6), circuit board (7), housing (8), data line (9) is formed, and its electric theory diagram is seen Fig. 1.As the microprocessor MCU (3) of main control chip, by the operation of data bus control total system, its FPDP (I/O) is connected with storer (5) data port; The D of microprocessor MCU (3)
+, D
-The both positive and negative polarity interface of mouth, power supply and the D in the USB interface
+, D
-The both positive and negative polarity of groove, power supply connects; The power output of microprocessor MCU (3) is connected with storer (5), or adopts outside DC-DC power transfer module to provide power supply to storer; And the power positive cathode in the working power both positive and negative polarity of data channel switch (6) and the USB interface is connected; The control mouth of microprocessor MCU (3), the work of the read-write of control store, data channel switch (6) conversion respectively, when the USB interface on the module (2) and desk-top or notebook (PC) when being connected, microprocessor MCU (3) control data censor key (6), data chainning is switched, the module automatic cutout is connected with the data of mobile phone, only carries out two-way interaction and exchanges data with computer; When USB interface (2) disconnected with being connected of desk-top or notebook, in the time of in the data port in data line (9) passes through data-interface (1) insertion mobile phone, data chainning can be connected with mobile phone again automatically.On mobile phone or computing machine, can both read, write, delete the file data in the module.Do not need to install again the specific drivers of mobile phone on computers, more not be used under the interface of this special software and operate, only need open the drive of representing this module, open corresponding file again, adopt then and duplicate, method such as dilatory can both write data easily, and having made things convenient for computing machine is not very skilled people's use.
During use, after the USB interface (2) of module and computing machine successful connection, microprocessor MCU (3) is the control data censor key automatically, with data chainning by with being connected of mobile phone, switch to and being connected of computing machine; Open " my computer " of computing machine then, find " portable hard drive ", click is opened, set up corresponding file, as Music music, Pictures picture, Ebooks e-book, Java apps program (recreation) etc., the document copying of needs is got final product in corresponding file,, can directly move these programs or deletion if data was just arranged in the file originally.When disconnect with being connected of computing machine after, data line (9) is inserted in mobile phone the corresponding interface by data-interface (1), data chainning just can find corresponding file in the column accordingly from being dynamically connected, and work such as can move, delete, duplicate; For example file copy that can the data in the mobile phone EMS memory, photo, video recording etc. are bigger is in the module in the corresponding file; Or, play games etc. at the pleasant to the ear MP3 of Music music.Because during the corresponding document in the operation module, module is one of them storer on the mobile phone, does not occupy the memory headroom resource of mobile phone, therefore realized the external of mass storage.
As adopt wireless mode and mobile communication, as long as increase radio chipsets, as " RF " RF-wise of " bluetooth " chipset, Wi-Fi agreement, the two is operated in the 2.40-2.483GHz frequency range, and has the RF storage unit that receives and transmit; Front end has antenna, and antenna can be installed on the housing.