CN102222207A - Method for realizing networking by switching 3G data card working modes in Linux system - Google Patents
Method for realizing networking by switching 3G data card working modes in Linux system Download PDFInfo
- Publication number
- CN102222207A CN102222207A CN201110133883XA CN201110133883A CN102222207A CN 102222207 A CN102222207 A CN 102222207A CN 201110133883X A CN201110133883X A CN 201110133883XA CN 201110133883 A CN201110133883 A CN 201110133883A CN 102222207 A CN102222207 A CN 102222207A
- Authority
- CN
- China
- Prior art keywords
- data card
- mode
- switching
- interface
- mode switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Telephonic Communication Services (AREA)
Abstract
The invention relates to a method for realizing networking by switching 3G data card working modes in a Linux system. The method is designed for solving inconvenience caused to users by switching 3G data card working modes in the Linux system. The method in the invention realizes that a 3G data card used in a WINDOWS system can be conveniently driven under the Linux system without being debugged by users or even modifying a kernel code, so that the users who do not know characteristics of Linux and the 3G data card can conveniently use the 3G data card to go on line under the Linux system.
Description
Technical field
The invention belongs to wireless communication technology field, relate to a kind of conversion method of 3G data card mode of operation, particularly in linux system, realize the method for networking by switching 3G data card mode of operation.
Background technology
The 3G data card is meant and is applied to computer and adopts the 3G (Third Generation) Moblie technology to insert the equipment of internet.Technical standard 3G data card according to 3G network is divided into 3 classes: WCDMA data card, TD data card, CDMA card of surfing Internet.The 3G data card is an equipment that is used for by 3G mobile communications network visit Internet, and the same with mobile phone, it also needs to use SIM card.General mobile phone also has the function of data card, only mobile phone is many individual phonetic function, many hardware and some application software such as screen, keyboard we can say that mobile phone is simplified to one has only data communication function to data card exactly, do not have screen, do not have a kind of equipment of keyboard.
The 3G data card uses as a kind of modulator-demodular unit, the data signal modulation of the PPP form that it sends computer here sends to the machine station of mobile radio communication on radio carrier, conversely the wireless signal demodulation that receives is come out to be reduced into the PPP information bag and pass to computer.
Present 3G data card on the market is in the majority with USB interface, all be to be designed for above the WINDOWS operating system, use for the ease of the user, the 3G data card is designed to following working method: at first, when data card has just injected PC, it shows as a CD-ROM equipment, and this CD-ROM comprises, and a cover moves automatically, automatic installed software, and this software comprises driving, reaches dialing supervisory routine etc.When this cover running software and after installing, it can discern the 3G data card that inserts automatically, and in the USB interface of this 3G data card, write some special orders, force this 3G data card to carry out the switching of mode of operation, be converted into a modem device, this modem device both can also can carry out dial-up connection by the application program of above-mentioned automatic installation with the dial-up program dial-up connection internet of WINDOWS.
Data card producer generally is not provided at the driver under the Linux for various reasons, makes data card use under the Linux environment and is restricted.
Using the 3G data card at present under Linux, mainly need finish the work of two aspects, is the mode of operation of switching the 3G data card on the one hand, is to carry out the PPP dialing in addition on the one hand.For the mode of operation of switching the 3G data card, the project that has some to increase income, this intermediate item all works in the user's space of Linux, by usbfs file system access usb interface, switch, and the driver that the use kernel carries often needs manual ID number of giving this driver adding new equipment as driving, that is to say that needing to revise code could use, thereby make troubles to the user.On the market, it is very fast that producer releases the speed of new 3G data card, and these projects of increasing income newly do not go out the support of 3G card to these.These projects a lot of functions of depending on desktop Linux operating system could be worked in addition, are unfavorable for the use in all kinds of embedded Linux systems such as ustomer premises access equipment CPE.For carrying out the PPP dialing, then can use general PPP related software to carry out.
Summary of the invention
The present invention is switched the inconvenience that 3G data card mode of operation is brought to the user in order to solve in linux system, designed in linux system by switching the method that 3G data card mode of operation realizes networking, can easily the 3G data card that is used for the WINDOWS system be driven under linux system, debug and need not the user, more do not need the code of kernel is made amendment, thus make to Linux, and the uncomprehending user of characteristic of 3G data card also can under linux system, use the online of 3G data card easily.
The technical solution used in the present invention is: the method that realizes networking in linux system by switching 3G data card mode of operation, the mode of operation that this method is used for inserting the 3G data card of computing machine switches to modem state to realize networking by the CD-ROM state, key is: set up the mode switch administration module in computing machine, with the serial port drive program module of virtual file as user interface, and first memory, collect various 3G data card mode of operation handover configurations information, and set up concordance list, the corresponding index record of a kind of 3G data card, comprise in every index record: call number, the PID of 3G data card, VID number, and the required configuration information of mode switch, in first memory, the detailed step of the method for above-mentioned switching 3G data card mode of operation realization networking is as follows with above-mentioned index table stores:
A, 3G data card and computing machine by usb mouth physical connection after, the mode switch administration module receives the insertion information of 3G data card, judges whether to possess the condition that mode of operation is switched then, if carry out step B; If not, skip to step G;
B, mode switch administration module obtain the PID, and VID number of the 3G data card of insertion from the usbfs file system, utilize above-mentioned PID again, and from first memory, retrieve the required handover information of mode switch of 3G data card correspondence for VID number as index information, if do not retrieve, skip to step C; If retrieve corresponding switching record, skip to step e;
C, with the operation of delivering from godown of 3G data card, whether success of mode switch administration module judgment task mode switch then if not, skips to step D; If skip to step G;
D, utilize the configuration information in every record of handover configurations file to switch successively, with first can successfully realize in the record that mode of operation switches PID, and VID number PID, and replace for VID number with this 3G data card, thereby generate a new switching index record, and this recording storage to first memory, skip to step F;
E, mode switch administration module write the configuration information of gained by the usbfs file system to the usb of 3G data card interface, carry out mode of operation and switch, if handover success then jumps to F, if switch unsuccessfully, jump to H;
F, mode switch administration module obtain the PID of the 3G data card after the switching by the usbfs file system, VID information, and gained PID, VID information are write in the virtual document interface of serial port drive module, make the serial port drive module to discern to carry out 3G data card after mode of operation is switched;
G,, computer search realizes networking if, starting relevant dial-up program to modulator-demodular unit;
H, the mode switch flow process finishes, deactivates.
The invention has the beneficial effects as follows: technical scheme of the present invention has solved the 3G data card at Linux
In making under the environment, switch the problem of described 3G data card mode of operation inconvenience, according to present operating position, described scheme is suitable for all 3G data cards on the market, accomplish that described system just can switch to modem state to the mode of operation of this data card by the CD-ROM state as long as described 3G data card is inserted the USB interface of moving described system hardware.
Description of drawings
Fig. 1 is the process flow diagram of the inventive method.
Embodiment
In linux system, realize the method for networking by switching 3G data card mode of operation, the mode of operation that this method is used for inserting the 3G data card of computing machine switches to modem state to realize networking by the CD-ROM state, importantly: in computing machine, set up the mode switch administration module, with the serial port drive program module of virtual file as user interface, and first memory, collect various 3G data card mode of operation handover configurations information, and set up concordance list, the corresponding index record of a kind of 3G data card, comprise in every index record: call number, the PID of 3G data card, VID number, and the required configuration information of mode switch, in first memory, the detailed step of the method for above-mentioned switching 3G data card mode of operation realization networking is as follows with above-mentioned index table stores:
A, 3G data card and computing machine by usb mouth physical connection after, the mode switch administration module receives the insertion information of 3G data card, judges whether to possess the condition that mode of operation is switched then, if carry out step B; If not, skip to step G;
B, mode switch administration module obtain the PID, and VID number of the 3G data card of insertion from the usbfs file system, utilize above-mentioned PID again, and from first memory, retrieve the required handover information of mode switch of 3G data card correspondence for VID number as index information, if do not retrieve, skip to step C; If retrieve corresponding switching record, skip to step e;
C, with the operation of delivering from godown of 3G data card, whether success of mode switch administration module judgment task mode switch then if not, skips to step D; If skip to step G;
D, utilize the configuration information in every record of handover configurations file to switch successively, with first can successfully realize in the record that mode of operation switches PID, and VID number PID, and replace for VID number with this 3G data card, thereby generate a new switching index record, and this recording storage to first memory, skip to step F;
E, mode switch administration module write the configuration information of gained by the usbfs file system to the usb of 3G data card interface, carry out mode of operation and switch, if handover success then jumps to F, if switch unsuccessfully, jump to H;
F, mode switch administration module obtain the PID of the 3G data card after the switching by the usbfs file system, VID information, and gained PID, VID information are write in the virtual document interface of serial port drive module, make the serial port drive module to discern to carry out 3G data card after mode of operation is switched;
G,, computer search realizes networking if, starting relevant dial-up program to modulator-demodular unit;
H, the mode switch flow process finishes, deactivates.
In the steps A, whether the mode switch administration module exists the determination methods of the 3G data card that need carry out the mode of operation switching to be: detect the new SB equipment that inserts and whether have the interface of storage class or the interface of serial ports type, if have the interface of storage class, do not have the interfacing equipment of serial ports type, then there is the 3G data card that need carry out the mode of operation switching in expression, if have the interface of storage class, the interface that also there is the serial ports type in the while, then there is not the 3G data card that need carry out the mode of operation switching in expression.
Among the step C, whether the mode switch administration module carries out mode of operation and switches whether successful determination methods is: detect original USB device and disappear, and the new USB device that has the serial ports style interface whether occurs, if, then the expression switching is unsuccessful, and if not, then expression is switched unsuccessful.
In the steps A, the mode switch administration module realizes that the process of reception 3G data card insertion incident is as follows: the usb drive system of Linux detects the 3G data card and inserts incident, transmission information notice hot plug disposal system, hot plug disposal system forwarding information is to the mode switch administration module.
The concordance list of storing in the described first memory is the renewal of finishing content by WEB interface or TR069 interface.
The present invention in the specific implementation, at first, switch required configuration information for the various 3G data card mode of operations in the first memory and set up concordance list, the corresponding index record of a kind of 3G data card comprises in every index record: PID, the VID of call number, 3G data card number, and the required configuration information of mode switch, with above-mentioned index table stores in first memory, standby, in addition, above-mentioned PID is the product identifiers of 3G data card, and VID is the manufacturer identifier of 3G data card; If the usb drive system of linux kernel has detected the 3G data card and has inserted incident, netlink socket mechanism photos and sending messages by Linux is given the hot plug disposal system that runs on user's space, this system filtration is to the part incident, forwarding information is given the mode switch administration module again, the mode switch administration module detects the interface type of this USB device, if detect the interface that has storage class, and the interface that does not have the serial ports type, represent that then this 3G data card is operated in the CD-ROM state, need carry out the switching of mode of operation, if have the interface of storage class, the interface that also has simultaneously the serial ports type, represent that then this 3G data card is operated in the duty of modulator-demodular unit, need not to carry out again the switching of mode of operation, can directly carry out the PPP dialup networking.
The process of carrying out the mode of operation switching is: the mode switch administration module obtains the PID of 3G data card from the usbfs file system, and VID number, utilize above-mentioned PID again, and VID number required configuration information of mode switch as retrieval 3G data card correspondence in the concordance list of index information from first memory, if do not retrieve, with the operation of delivering from godown of this 3G data card, because all giving tacit consent to the order of supporting to deliver from godown, most of 3G data card carries out the switching of mode of operation, operation all can't complete successfully switching if deliver from godown, that just attempts adopting the method for traversal, promptly switch with the handover configurations information in every in the concordance list in the first memory index record successively, first can successfully be realized PID in the index record that mode of operation switches, and VID number PID with this 3G data card, and VID number replacement generates a new record, and this recording storage to first memory, re-using this 3G data card next time just can directly utilize this configuration information to switch, because the handoff procedure of the 3G data card of the same chip business chip of same employing all is similar, it only is the manufacturer identifier of being correlated with, the product identifiers difference, so we can adopt traversal, be applied on the new 3G data card after all known changing methods are more changed relevant identifier, basically can both find a suitable method, the process of this traversal a bit for a long time, sometimes need the requirement user to plug the 3G data card, therefore, when specific implementation, can point out the user, want to carry out this step operation; If retrieve corresponding configuration record, the mode switch administration module uses the configuration information record that retrieves to send relevant switching command by the usbfs file system to usb equipment, check to have original PID by the usbfs file system then, whether the usb equipment of VID also exists, if there is no, then check the new USB device that serial line interface whether newly occurred having, if such equipment is arranged, show handover success, need to obtain the PID of new USB device then by the usbfs file system, VID and other information needed write the virtual document interface of serial port drive module to these information, allow described this USB device of serial port drive module drive; After dialer software retrieves modulator-demodular unit, just can start the PPP dialing and realize networking.
If system uses in network client terminal device CPE, then the technical program provides the interface of a TR069, be used for upgrading the concordance list that described first memory is stored with the WEB interface, the concordance list of storing in the described first memory is the renewal of finishing content by WEB interface or TR069 interface.
Claims (5)
1. in linux system, realize the method for networking by switching 3G data card mode of operation, the mode of operation that this method is used for inserting the 3G data card of computing machine switches to modem state to realize networking by the CD-ROM state, it is characterized in that: in computing machine, set up the mode switch administration module, with the serial port drive program module of virtual file as user interface, and first memory, collect various 3G data card mode of operation handover configurations information, and set up concordance list, the corresponding index record of a kind of 3G data card, comprise in every index record: call number, the PID of 3G data card, VID number, and the required configuration information of mode switch, in first memory, the detailed step of the method for above-mentioned switching 3G data card mode of operation realization networking is as follows with above-mentioned index table stores:
A, 3G data card and computing machine by usb mouth physical connection after, the mode switch administration module receives the insertion information of 3G data card, judges whether to possess the condition that mode of operation is switched then, if carry out step B; If not, skip to step G;
B, mode switch administration module obtain the PID, and VID number of the 3G data card of insertion from the usbfs file system, utilize above-mentioned PID again, and from first memory, retrieve the required handover information of mode switch of 3G data card correspondence for VID number as index information, if do not retrieve, skip to step C; If retrieve corresponding switching record, skip to step e;
C, with the operation of delivering from godown of 3G data card, whether success of mode switch administration module judgment task mode switch then if not, skips to step D; If skip to step G;
D, utilize the configuration information in every record of handover configurations file to switch successively, with first can successfully realize in the record that mode of operation switches PID, and VID number PID, and replace for VID number with this 3G data card, thereby generate a new switching index record, and this recording storage to first memory, skip to step F;
E, mode switch administration module write the configuration information of gained by the usbfs file system to the usb of 3G data card interface, carry out mode of operation and switch, if handover success then jumps to F, if switch unsuccessfully, jump to H;
F, mode switch administration module obtain the PID of the 3G data card after the switching by the usbfs file system, VID information, and gained PID, VID information are write in the virtual document interface of serial port drive module, make the serial port drive module to discern to carry out 3G data card after mode of operation is switched;
G,, computer search realizes networking if, starting relevant dial-up program to modulator-demodular unit;
H, the mode switch flow process finishes, deactivates.
2. the method that in linux system, realizes networking according to claim 1 by switching 3G data card mode of operation, it is characterized in that: in the steps A, whether the mode switch administration module exists the determination methods of the 3G data card that need carry out the mode of operation switching to be: detect the interface whether new SB equipment that inserts exists storage class, or the interface of serial ports type, if have the interface of storage class, the interfacing equipment that does not have the serial ports type, then there is the 3G data card that need carry out the mode of operation switching in expression, if have the interface of storage class, the interface that yet has simultaneously the serial ports type, then there is not the 3G data card that need carry out the mode of operation switching in expression.
3. the method that in linux system, realizes networking according to claim 1 by switching 3G data card mode of operation, it is characterized in that: among the step C, whether the mode switch administration module carries out mode of operation and switches whether successful determination methods is: detect original USB device and disappear, and whether the new USB device that has the serial ports style interface appears, if, then the expression switching is unsuccessful, and if not, then expression is switched unsuccessful.
4. the method that in linux system, realizes networking according to claim 1 by switching 3G data card mode of operation, it is characterized in that: in the steps A, the mode switch administration module realizes that the process of reception 3G data card insertion incident is as follows: the usb drive system of Linux detects the 3G data card and inserts incident, transmission information notice hot plug disposal system, hot plug disposal system forwarding information is to the mode switch administration module.
5. according to claim 1 in linux system by switching the method that 3G data card mode of operation realizes networking, it is characterized in that: the concordance list of storing in the described first memory is the renewal of finishing content by WEB interface or TR069 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133883.XA CN102222207B (en) | 2011-05-23 | 2011-05-23 | Method for realizing networking by switching 3G data card working modes in Linux system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110133883.XA CN102222207B (en) | 2011-05-23 | 2011-05-23 | Method for realizing networking by switching 3G data card working modes in Linux system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102222207A true CN102222207A (en) | 2011-10-19 |
| CN102222207B CN102222207B (en) | 2014-03-19 |
Family
ID=44778755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110133883.XA Active CN102222207B (en) | 2011-05-23 | 2011-05-23 | Method for realizing networking by switching 3G data card working modes in Linux system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102222207B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830970A (en) * | 2012-08-10 | 2012-12-19 | 深圳市共进电子股份有限公司 | Hot-plug treatment method applicable to Linux embedded system |
| WO2013182166A1 (en) * | 2012-10-31 | 2013-12-12 | 中兴通讯股份有限公司 | Method and device for automatic, seamless network port switching |
| CN103514117A (en) * | 2012-06-21 | 2014-01-15 | 上海斐讯数据通信技术有限公司 | USB network card identifying method |
| CN103677888A (en) * | 2012-09-26 | 2014-03-26 | 上海斐讯数据通信技术有限公司 | USB network card recognition and configuration method |
| CN104125658A (en) * | 2014-08-07 | 2014-10-29 | 珠海迈科智能科技股份有限公司 | Networking method and system |
| CN104239241A (en) * | 2013-06-20 | 2014-12-24 | 华为终端有限公司 | Data card, data card switching method and device |
| CN104427521A (en) * | 2013-08-29 | 2015-03-18 | 深圳市共进电子股份有限公司 | Embedded type 3G (the third generation telecommunication) networking card working method and system |
| CN103473197B (en) * | 2013-09-04 | 2016-04-27 | 中国联合网络通信集团有限公司 | Gateway device and card of surfing Internet carry out adaptive method and apparatus |
| CN106375163A (en) * | 2016-08-29 | 2017-02-01 | 安徽皖通邮电股份有限公司 | High-speed PPP implementation method for wireless data card in Linux system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072435A (en) * | 2007-05-25 | 2007-11-14 | 上海银软信息科技有限公司 | Control method for automatically switching network multi-modes for wireless Internet card |
| CN101287208A (en) * | 2008-05-07 | 2008-10-15 | 重庆重邮信科（集团）股份有限公司 | Mode switching method and device for bi-mode wireless Internet surfing |
| US20100265880A1 (en) * | 2006-01-19 | 2010-10-21 | Markku Rautiola | Convert ip telephony network into a mobile core network |
-
2011
- 2011-05-23 CN CN201110133883.XA patent/CN102222207B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100265880A1 (en) * | 2006-01-19 | 2010-10-21 | Markku Rautiola | Convert ip telephony network into a mobile core network |
| CN101072435A (en) * | 2007-05-25 | 2007-11-14 | 上海银软信息科技有限公司 | Control method for automatically switching network multi-modes for wireless Internet card |
| CN101287208A (en) * | 2008-05-07 | 2008-10-15 | 重庆重邮信科（集团）股份有限公司 | Mode switching method and device for bi-mode wireless Internet surfing |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103514117A (en) * | 2012-06-21 | 2014-01-15 | 上海斐讯数据通信技术有限公司 | USB network card identifying method |
| CN102830970A (en) * | 2012-08-10 | 2012-12-19 | 深圳市共进电子股份有限公司 | Hot-plug treatment method applicable to Linux embedded system |
| CN102830970B (en) * | 2012-08-10 | 2016-04-27 | 深圳市共进电子股份有限公司 | A kind of hot-swap processing method being applicable to Linux embedded system |
| CN103677888A (en) * | 2012-09-26 | 2014-03-26 | 上海斐讯数据通信技术有限公司 | USB network card recognition and configuration method |
| CN103677888B (en) * | 2012-09-26 | 2018-09-28 | 上海斐讯数据通信技术有限公司 | USB network card identifies configuration method |
| WO2013182166A1 (en) * | 2012-10-31 | 2013-12-12 | 中兴通讯股份有限公司 | Method and device for automatic, seamless network port switching |
| US10049070B2 (en) | 2013-06-20 | 2018-08-14 | Huawei Device Co., Ltd. | Data card, and data card switching method and apparatus |
| CN104239241A (en) * | 2013-06-20 | 2014-12-24 | 华为终端有限公司 | Data card, data card switching method and device |
| CN104239241B (en) * | 2013-06-20 | 2018-09-11 | 华为终端有限公司 | Data card, data card switching method and device |
| CN104427521A (en) * | 2013-08-29 | 2015-03-18 | 深圳市共进电子股份有限公司 | Embedded type 3G (the third generation telecommunication) networking card working method and system |
| CN104427521B (en) * | 2013-08-29 | 2019-01-22 | 深圳市共进电子股份有限公司 | Embedded 3G card of surfing Internet working method and system |
| CN103473197B (en) * | 2013-09-04 | 2016-04-27 | 中国联合网络通信集团有限公司 | Gateway device and card of surfing Internet carry out adaptive method and apparatus |
| CN104125658A (en) * | 2014-08-07 | 2014-10-29 | 珠海迈科智能科技股份有限公司 | Networking method and system |
| CN106375163A (en) * | 2016-08-29 | 2017-02-01 | 安徽皖通邮电股份有限公司 | High-speed PPP implementation method for wireless data card in Linux system |
| CN106375163B (en) * | 2016-08-29 | 2019-04-12 | 安徽皖通邮电股份有限公司 | The high speed PPP implementation method of wireless data card on a kind of linux system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102222207B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102222207B (en) | Method for realizing networking by switching 3G data card working modes in Linux system | |
| CN102411546B (en) | Method for implementing connected communication of 3G data cards in at least two operation modes | |
| CN101901111A (en) | Method and device for realizing automatic operation on mobile terminal | |
| CN101132288B (en) | Network long-range control method, system and device between terminals | |
| CN101562789B (en) | Method and device for integrating address list and instant messaging software | |
| CN102081502A (en) | Method for managing icons on standby interface of mobile terminal and mobile terminal | |
| CN103472974A (en) | Method and device for sharing application | |
| CN104717377A (en) | Mobile terminal scene mode switching method and device and mobile terminal | |
| EP2320328A1 (en) | Operation mode switching of data card and its control method, device and data card | |
| CN101833466A (en) | Terminal device and installing method of driver thereof | |
| CN104679581A (en) | Method and device for running program in background | |
| CN104731823A (en) | Multi-device document browsing method and device | |
| CN102073524B (en) | A kind of method of wireless communication terminal and self-starting thereof | |
| CN101621857B (en) | Operation control method of mobile communication terminal application and application manager | |
| CN101777032A (en) | Method and equipment for realizing USB endpoint multiplexing | |
| CN101374360A (en) | Multiport multiplexing method, apparatus and system | |
| EP1792472A1 (en) | System and method for backup and restoration | |
| CN107071765B (en) | Data receiving method and data receiving terminal | |
| CN101901157B (en) | Management software self-starting installation method and system | |
| CN104683215A (en) | Communication method and device of instant communication tool | |
| CN103092721A (en) | Application backing up method, electronic equipment and system | |
| CN104427521A (en) | Embedded type 3G (the third generation telecommunication) networking card working method and system | |
| CN101583177A (en) | Method for intelligently selecting and automatically dialing wireless wideband access network | |
| CN102932960A (en) | Exchange system and exchange method for electronic business cards | |
| CN101072414B (en) | Method and device for managing and protecting mobile terminal device information |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518000, Shenzhen, Guangdong province Nanshan District Shekou Nanhai Road 1019, 100 surplus medical instrument Park, two floor Applicant after: Shenzhen Gongjin Electronics Co., Ltd. Address before: 518000, Shenzhen, Guangdong province Nanshan District Shekou Nanhai Road 1019, 100 surplus medical instrument Park, two floor Applicant before: Shenzhen Gongjin Electronics Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SHENZHEN GONGJIN ELECTRONICS CO., LTD. TO: SHENZHEN GONGJIN ELECTRONIC CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |