Method and apparatus to write tag using near field communication

1. A method of writing a near field communication (NFC) tag using a mobile terminal, the method comprising:

extracting, by the mobile terminal from information transmitted by an image forming apparatus when establishing a wireless connection with the image forming apparatus, a value of the information corresponding to a field of a data structure of the NFC tag, the establishing of the wireless connection being separate from NFC tagging;

generating tag information including the extracted value by arranging the extracted value according to the data structure; and

writing the tag information to the NFC tag through NFC tagging,

wherein information about the data structure of the NFC tag is previously stored in the mobile terminal.

2. The method of claim 1 , wherein the extracted value comprises at least one of a device identifier, a device model name, a device capability, or a wireless connection type.

3. The method of claim 1 , further comprising:

discovering one or more candidate devices capable of performing an image forming job under control of a mobile application that is currently executed;

selecting one of the discovered one or more candidate devices as the image forming apparatus; and

establishing the wireless connection with the image forming apparatus.

4. The method of claim 3 ,

wherein, in the discovery of the one or more candidate devices, at least one of an Internet protocol (IP) address, a device model name, or a device identifier of the candidate devices is collected according to wireless connection signaling of the candidate devices or an access point (AP) connected to the candidate devices, and

wherein the extracted value includes at least one of the IP address, the device model name, or the device identifier of the candidate device selected as the image forming apparatus.

5. The method of claim 3 ,

wherein the establishing of the wireless connection comprises performing response signaling including obtaining device capability of the image forming apparatus with respect to wireless connection signaling of the image forming apparatus or an access point (AP) connected to the image forming apparatus, and

wherein the extracting of the value of the information corresponding to the field of the data structure of the NFC tag comprises extracting the device capability of the image forming apparatus obtained through the wireless connection.

6. The method of claim 1 , wherein the generating of the tag information further comprises:

obtaining a field value different from the extracted value through a mobile application that controls the image forming apparatus to perform an image forming job; and

arranging the field value different from the extracted value according to the data structure.

7. The method of claim 6 ,

wherein the field value different from the extracted value comprises at least one of an application identifier or application installation information, and

wherein the application identifier and the application installation information are respectively used to automatically execute or install the mobile application in a predetermined NFC device when the NFC tag is NFC tagged by the predetermined NFC device.

8. The method of claim 1 , further comprising:

obtaining an authentication code needed to establish the wireless connection with the image forming apparatus; and

encrypting the authentication code,

wherein the encrypted authentication code is arranged in the tag information.

9. The method of claim 1 , wherein, regarding a position in the data structure of the NFC tag corresponding to an authentication code needed to establish the wireless connection with the image forming apparatus, the writing of the tag information comprises one of writing a random value, writing a null value, or skipping writing.

10. The method of claim 1 , further comprising:

updating firmware (FW) of the image forming apparatus as the mobile terminal or the image forming apparatus accesses a FW providing server,

wherein the updated FW automates Wi-Fi protected setup (WPS) authentication between the image forming apparatus and a predetermined NFC device that obtains an authentication code included in the tag information written to the NFC tag.

11. The method of claim 1 , further comprising:

setting an authentication code of the wireless connection with the image forming apparatus in firmware (FW) of the image forming apparatus as the mobile terminal or the image forming apparatus accesses a web page provided by a web server included in the image forming apparatus,

wherein the authentication code is written at a position in the data structure of the NFC tag.

12. The method of claim 1 , further comprising:

switching a mode from a write mode to a read mode when the writing of the tag information is completed;

obtaining the tag information written to the NFC tag through NFC tagging in the read mode;

switching the mode back to the write mode and receiving an input of a new authentication code when authentication of the wireless connection with the image forming apparatus fails; and

writing the new authentication code to the NFC tag through NFC tagging in the write mode.

13. A non-transitory computer readable recording medium having recorded thereon a program to execute the method of claim 1 .

14. A mobile terminal to write a near field communication (NFC) tag, the mobile terminal comprising:

a transceiver to establish a wireless connection between the mobile terminal and an image forming apparatus;

at least one processor to:

extract, from information transmitted by the image forming apparatus when establishing the wireless connection with the image forming apparatus, a value of the information corresponding to a field of a data structure of the NFC tag, the establishing of the wireless connection being separate from NFC tagging,

arrange the extracted value according to the data structure, and

generate tag information including the extracted value; and

an NFC module to write the tag information to the NFC tag through NFC tagging,

wherein information about the data structure of the NFC tag is previously stored in the mobile terminal.

15. The mobile terminal of claim 14 , wherein the extracted value the at least one processor extracts from the collected information comprises at least one of a device identifier, a device model name, a device capability, or a wireless connection type.

16. The mobile terminal of claim 14 , wherein the transceiver:

discovers one or more candidate devices capable of performing an image forming job under control of a mobile application that is currently executed,

selects one of the discovered candidate devices as the image forming apparatus, and

establishes the wireless connection with the image forming apparatus.

17. The mobile terminal of claim 16 ,

wherein the transceiver collects at least one of an internet protocol (IP) address, a device model name, or a device identifier of the one or more candidate devices according to wireless connection signaling of the candidate devices or an access point (AP) connected to the candidate devices, and

wherein the at least one processor extracts at least one of the IP address, the device model name, or the device identifier of the candidate device selected as the image forming apparatus.

18. The mobile terminal of claim 16 ,

wherein the transceiver performs response signaling including obtaining device capability of the image forming apparatus with respect to the wireless connection signaling of the image forming apparatus or an access point (AP) connected to the image forming apparatus, and

wherein the at least one processor extracts the device capability of the image forming apparatus obtained through the wireless connection.

19. The mobile terminal of claim 14 , wherein the at least one processor:

obtains a field value different from the extracted value through a mobile application that controls the image forming apparatus to perform an image forming job, and

arranges the field value different from the extracted value according to the data structure.

20. The mobile terminal of claim 19 ,

wherein the field value different from the extracted value comprises at least one of an application identifier or application installation information, and

wherein the application identifier and the application installation information are respectively used to automatically execute or install the mobile application in a predetermined NFC device when the NFC tag is NFC tagged by the predetermined NFC device.

21. The mobile terminal of claim 14 , further comprising a user interface to obtain an authentication code needed to establish the wireless connection with the image forming apparatus,

wherein the at least one processor generates the tag information by encrypting the authentication code and arranging the encrypted authentication code in the tag information.

22. The mobile terminal of claim 14 , wherein, regarding a position in the data structure of the NFC tag corresponding to an authentication code needed to establish the wireless connection with the image forming apparatus, the NFC module writes a random value, writes a null value, or skips writing.

23. The mobile terminal of claim 14 ,

wherein the at least one processor updates firmware (FW) of the image forming apparatus as the mobile terminal or the image forming apparatus accesses a FW providing server, and

wherein the updated FW automates Wi-Fi protected setup (WPS) authentication between the image forming apparatus and a predetermined NFC device that obtains an authentication code included in the tag information written to the NFC tag.

24. The mobile terminal of claim 14 ,

wherein the at least one processor sets an authentication code of the wireless connection with the image forming apparatus in firmware (FW) of the image forming apparatus as the mobile terminal or the image forming apparatus accesses a web page provided by a web server included in the image forming apparatus, and

wherein the authentication code is written at a position in the data structure of the NFC tag.

25. The mobile terminal of claim 14 , wherein the NFC module, at a request of the at least one processor:

switches a mode from the write mode to a read mode when the writing of the tag information is completed,

obtains the tag information written to the NFC tag through NFC tagging in the read mode,

switches the mode back to the write mode and receives an input of a new authentication code when authentication of the wireless connection with the image forming apparatus fails, and

writes the new authentication code to the NFC tag through NFC tagging in the write mode.

26. A system comprising:

a mobile terminal;

an image forming apparatus; and

a near field communication (NFC) tag,

wherein the image forming apparatus:

establishes a wireless connection with the mobile terminal according to a wireless connection request of the mobile terminal, and

outputs a personal identification number (PIN) value set in firmware (FW) of the image forming apparatus, and

wherein the mobile terminal:

extracts, from information transmitted by the image forming apparatus when establishing the wireless connection with the image forming apparatus, a value of the information corresponding to a field of a data structure of the NFC tag, the establishing of the wireless connection being separate from NFC tagging,

arranges the extracted value according to the data structure,

generates tag information including the extracted value, and

writes the tag information to the NFC tag,

wherein information about the data structure of the NFC tag is previously stored in the mobile terminal.