JP2017208850A - Communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for a communication device to appropriately perform communication with a mobile terminal.SOLUTION: If an MFP belongs to a WFD network now, and is operating in a G/O state in the WFD network (YES at S12), the MFP transmits a message of MFP radio setting including a password to a mobile terminal (S14). On the other hand, if the MFP belongs to a normal Wi-Fi network now (YES at S9), the MFP transmits a message of AP radio setting not including a password to the mobile terminal (S21).SELECTED DRAWING: Figure 2

Description

  The technology disclosed in the present specification relates to a communication device for executing communication of target data with a portable terminal.

Patent Documents 1 and 2 disclose a technique for two wireless communication apparatuses to perform wireless communication. In Patent Documents 1 and 2, the two communication devices are short-range wireless communication (that is, NFC (Near Field
Communication of wireless setting is performed according to (abbreviation of communication) wireless communication according to the method). The above wireless setting is a setting for executing wireless communication according to a communication method (for example, IEEE 802.11a, 802.11b) different from the NFC method. Thus, the two communication devices can execute wireless communication according to the wireless setting.

JP 2007-166538 A JP 2011-146991 A

"Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.1", Wi-Fi Alliance, 2010

  In the present specification, a technology for a communication device to appropriately execute communication with a mobile terminal is provided.

  The technology disclosed by this specification is a communication device. The communication apparatus includes a first type interface, a second type interface, and a control unit. The first type interface is an interface for performing wireless communication with the mobile terminal. The second type interface is an interface for performing wireless communication with the mobile terminal. The communication speed of wireless communication through the second type interface is higher than the communication speed of wireless communication through the first type interface. Is also fast. The communication device can execute the first type of wireless communication in which the access point different from the communication device and the portable terminal is not used by using the second type interface, and the second type in which the access point is used. Wireless communication can be executed. In the first case where the communication device belongs to the first wireless network for executing the first type of wireless communication, the control unit performs the first wireless setting for the portable terminal to belong to the first wireless network. The first wireless setting including the password is transmitted to the portable terminal using the first type interface, and then transmitted via the portable terminal and the first wireless network using the second type interface. Perform wireless communication of target data. In the second case where the communication device belongs to the second wireless network for executing the second type of wireless communication, the communication execution unit performs the second wireless setting for the portable terminal to belong to the second wireless network. Then, after the second wireless setting not including the password is transmitted to the portable terminal using the first type interface, the portable terminal and the second wireless network are transmitted using the second type interface. Wireless communication of the target data via

According to the above configuration, the mobile terminal can belong to the wireless network to which the communication device currently belongs, using the wireless setting received from the communication device. As a result, the communication device can execute communication of target data with the mobile terminal at a relatively high communication speed by using the second type interface. When transmitting the first wireless setting, the communication device transmits the first wireless setting including the password to the mobile terminal. On the other hand, when transmitting the second wireless setting, the communication apparatus transmits the second wireless setting not including the password to the mobile terminal. According to this configuration, the communication apparatus does not need to transmit a password for connecting to the access point to the mobile terminal. As a result, it is possible to prevent a mobile terminal that does not know the password from belonging to the second wireless network.

  When the communication device currently belongs to both the first wireless network and the second wireless network, the control unit sets the first wireless setting including the password via the first type interface. And the second wireless setting may not be transmitted to the portable terminal via the first type interface. According to this configuration, the communication device can preferentially transmit the first wireless setting to the mobile terminal. As a result, even a portable terminal that does not know the password for belonging to the second wireless network can execute wireless communication of target data with the communication device via the first wireless network.

  The communication device has a plurality of states including a master station state that functions as a master station of a wireless network, a slave station state that functions as a slave station of the wireless network, and a device state that is different from the master station state and the slave station state. It may be selectively operable in any of these states. The communication device may be capable of performing the first type of wireless communication by operating in one of a master station state and a slave station state in the wireless network. In the first case, when the communication device is operating as the master station state in the first wireless network, the control unit performs the first wireless setting including the password, and sets the first type interface. After using and transmitting to the portable terminal, the second interface may be used to perform wireless communication of the target data via the portable terminal and the first wireless network. When the communication device is operating as a slave station state in the first wireless network, the communication execution unit transmits the first wireless setting not including the password to the mobile terminal using the first type interface. After the transmission, the target data is communicated with the portable terminal via the first wireless network using the second interface, and the target terminal is wirelessly communicated with the portable terminal via the second interface. May be executed. According to this configuration, the communication device can perform wireless communication of target data via the mobile terminal and the first wireless network when operating in the master station state. On the other hand, when the communication device operates in the slave station state, it is not necessary to transmit a password for connecting to a device in a parent station state different from the communication device to the mobile terminal. As a result, it is possible to prevent a mobile terminal that does not know the password from belonging to the first wireless network.

The following communication devices are also new and useful. The communication device has a plurality of states including a master station state that functions as a master station of a wireless network, a slave station state that functions as a slave station of the wireless network, and a device state that is different from the master station state and the slave station state. It can be selectively operated in any of these states. The communication device can execute specific wireless communication via the wireless network by operating in one of the master station state and the slave station state in the wireless network. The communication apparatus includes a first type interface, a second type interface, and a control unit. The first type interface is an interface for performing wireless communication with the mobile terminal. The second type interface is an interface for performing wireless communication with the mobile terminal. The communication speed of communication through the second type interface is faster than the communication speed of communication through the first type interface. When the communication device currently belongs to a specific wireless network for executing a specific wireless communication and the communication device is operating as a master station state, the control unit is configured so that the mobile terminal is in a specific wireless network. The third wireless setting for participating in the mobile phone is transmitted to the portable terminal using the first type interface after the third wireless setting including the password is transmitted to the portable terminal using the second interface. When wireless communication of target data is performed with a terminal via a specific wireless network, and the communication device is operating in a slave station state, the mobile terminal is configured to perform a fourth wireless setting for participating in the specific wireless network. Then, after the fourth wireless setting not including the password is transmitted to the portable terminal using the first type interface, the second wireless interface is used to carry the portable device. It executes wireless communication of object data via the end with a particular wireless network.

  According to the above configuration, the mobile terminal can belong to the wireless network to which the communication device currently belongs, using the wireless setting received from the communication device. As a result, the communication device can perform wireless communication of the target data with the mobile terminal at a relatively high communication speed via the second type interface. When operating as the master station state, the communication device transmits the third wireless setting including the password to the mobile terminal. On the other hand, when operating as a slave station state, the communication device transmits a fourth wireless setting that does not include a password to the mobile terminal. According to this configuration, the communication device does not need to transmit a password for connecting to a device in a master station state different from the communication device to the mobile terminal in a specific wireless network. As a result, it is possible to prevent a mobile terminal that does not know the password from belonging to the second wireless network.

  Note that a control method, a computer program, and a computer-readable recording medium storing the computer program for realizing the communication device are also novel and useful. A communication system including the communication device and the mobile terminal is also new and useful.

1 shows a configuration of a communication system. 2 shows a flowchart of communication processing executed by a multi-function device. The sequence diagram for demonstrating the process which each apparatus in a 1st condition performs is shown. The sequence diagram for demonstrating the process which each apparatus performs in a 2nd condition is shown. The sequence diagram for demonstrating the process which each apparatus in a 3rd condition performs is shown.

(Configuration of communication system)
As shown in FIG. 1, the communication system 2 includes a multi-function device (hereinafter referred to as “MFP” (abbreviation of “Multi-Function Peripheral”) 10, a portable terminal 50, and an access point (hereinafter referred to as “
(Referred to as “AP”) 6 and a PC 8. The MFP 10 and the portable terminal 50 can execute short-range wireless communication. Near field communication is wireless communication according to the NFC system. In this embodiment, wireless communication according to the NFC scheme is executed based on the international standard of ISO / IEC21481 or 18092.

Further, the MFP 10 can execute wireless communication in accordance with a WiFi Direct method described later. Hereinafter, WiFi Direct is referred to as “WFD”. In WFD, IEEE (abbreviation of The Institute of Electrical and Electronics Engineers, Inc.) 80
Wireless communication is executed based on the standard of 2.11 and standards conforming thereto (for example, 802.11a, 11b, 11g, 11n, etc.). The NFC method and the WFD method (hereinafter referred to as “WFD method”) are different in wireless communication method (ie, wireless communication standard). Further, the communication speed of the wireless communication according to the WFD method is faster than the communication speed of the wireless communication according to the NFC method.

For example, the MFP 10 can establish a WFD network by establishing a connection (hereinafter referred to as “WFD connection”) with the mobile terminal 50 in accordance with the WFD method. Similarly, the MFP 10 can establish a WFD network by establishing a WFD connection with the PC 8.

  Further, the PC 8, the MFP 10, and the portable terminal 50 can execute wireless communication in accordance with a normal Wi-Fi (for example, IEEE 802.11) method different from the WFD method. Generally speaking, the normal wireless communication in accordance with Wi-Fi is a wireless communication in which AP6 is used, and the wireless communication in accordance with the WFD method is a wireless communication in which AP6 is not used. For example, the MFP 10 can belong to the normal Wi-Fi network by establishing a connection with the AP 6 (hereinafter referred to as “normal Wi-Fi connection”) according to the normal Wi-Fi. The MFP 10 can execute wireless communication with another device (for example, the PC 8 or the portable terminal 50) belonging to the normal Wi-Fi network via the AP 6. Note that the NFC method and the normal Wi-Fi method (hereinafter referred to as “normal Wi-Fi method”) differ in the wireless communication method (that is, the wireless communication standard). Further, the normal Wi-Fi communication speed is faster than the NFC communication speed.

(WFD)
WFD is a standard established by the Wi-Fi Alliance. WFD is described in “Wi-Fi Peer-to-Peer (P2P) Technical Specification Version 1.1” created by Wi-Fi Alliance.

  As described above, the PC 8, the MFP 10, and the portable terminal 50 can each perform wireless communication in accordance with the WFD method. Hereinafter, a device capable of performing wireless communication in accordance with the WFD method is referred to as “WFD-compatible device”. In the WFD standard, three states of a Group Owner state (hereinafter referred to as “G / O state”), a client state, and a device state are defined as states of a WFD-compatible device. The WFD compatible device can selectively operate in one of the above three states.

  A WFD network is configured by the devices in the G / O state and the devices in the client state. In the WFD network, there can be only one device in the G / O state, but there can be one or more devices in the client state. A device in the G / O state manages one or more devices in the client state. More specifically, the G / O state device generates a management list in which identification information (that is, MAC address) of each of one or more client state devices is described. When the device in the G / O state newly belongs to the WFD network, the device in the G / O state adds the identification information of the device to the management list, and when the device in the client state leaves the WFD network, the identification information of the device is added. Clear from management list.

  A device in the G / O state is registered with a device registered in the management list, that is, a device in a client state (that is, a device belonging to the WFD network) with target data (for example, in the network layer of the OSI reference model). Wireless communication of data including information (print data, scan data, etc.) can be performed. However, a device in the G / O state is not connected to an unregistered device that is not registered in the management list. Data for the unregistered device belonging to the WFD network (for example, data that does not include network layer information (Probe) Wireless communication of the physical data (request signal, probe response signal, etc.) can be performed, but wireless communication of the above target data cannot be performed, for example, the MFP 10 in the G / O state is in the management list. The print data can be received wirelessly from the registered mobile terminal 50 (that is, the mobile terminal 50 in the client state), but the print data cannot be received wirelessly from a device that is not registered in the management list.

In addition, a G / O state device can relay wireless communication of target data (print data, scan data, etc.) between a plurality of client state devices. For example, when the portable terminal 50 in the client state should wirelessly transmit print data to another printer in the client state, the portable terminal 50 first wirelessly transmits the print data to the MFP 10 in the G / O state. In this case, the MFP 10 wirelessly receives print data from the portable terminal 50 and transmits the print data wirelessly to the other printer. That is, a device in the G / O state can execute the function of the AP of the normal Wi-Fi network.

  Note that a WFD compatible device that does not belong to the WFD network (that is, a device that is not registered in the management list) is a device in a device state. The device in the device state can execute wireless communication of data (physical layer data such as a probe request signal and a probe response signal) for belonging to the WFD network, but the target data (print data, Wireless communication of scan data or the like is impossible.

  In the following, a device that is not capable of performing wireless communication in accordance with the WFD scheme but is capable of performing wireless communication in accordance with normal Wi-Fi is referred to as “a WFD non-compliant device”. A “non-WFD compatible device” can also be referred to as a “legacy device”. A device that does not support WFD cannot operate in the G / O state. A device in the G / O state can describe identification information of a device that does not support WFD in the management list.

(Configuration of MFP 10)
The MFP 10 includes an operation unit 12, a display unit 14, a print execution unit 16, a scan execution unit 18, a wireless LAN interface (hereinafter referred to as “I / F”) 20, an NFC I / F 22, And a control unit 30. The operation unit 12 includes a plurality of keys. The user can input various instructions to the MFP 10 by operating the operation unit 12. The display unit 14 is a display for displaying various information. The print execution unit 16 is a printing mechanism such as an inkjet method or a laser method. The scan execution unit 18 is a scan mechanism such as a CCD or CIS.

  The wireless LAN I / F 20 is an interface for the control unit 30 to execute wireless communication according to the WFD method and wireless communication according to normal Wi-Fi. The wireless LAN I / F 20 is physically one interface. However, the wireless LAN I / F 20 includes a MAC address used in wireless communication in accordance with the WFD method (hereinafter referred to as “MAC address for WFD”) and a MAC address used in wireless communication in accordance with normal Wi-Fi. Both addresses (hereinafter referred to as “normal Wi-Fi MAC addresses”) are assigned. More specifically, a normal Wi-Fi MAC address is pre-assigned to the wireless LAN I / F 20. The control unit 30 generates a WFD MAC address using the normal Wi-Fi MAC address, and assigns the WFD MAC address to the wireless LAN I / F 20. The WFD MAC address is different from the normal Wi-Fi MAC address. Therefore, the control unit 30 can simultaneously execute both wireless communication in accordance with the WFD method and wireless communication in accordance with normal Wi-Fi via the wireless LAN I / F 20. As a result, a situation can be established in which the MFP 10 belongs to the WFD network and also belongs to the normal Wi-Fi network.

The G / O state device can describe not only the identification information of the WFD-compatible device in the client state but also the identification information of the WFD-incompatible device in the management list. That is, a device in the G / O state can establish a WFD connection with a device that does not support WFD. Generally speaking, the WFD connection is a wireless connection in which the WFD MAC address of the MFP 10 is used. The WFD network is a wireless network in which the WFD MAC address of the MFP 10 is used. Similarly, the normal Wi-Fi connection is a wireless connection in which the normal Wi-Fi MAC address of the MFP 10 is used. Also, the normal Wi-Fi network is
This is a wireless network in which the normal Wi-Fi MAC address of the MFP 10 is used.

  The user can change the setting of the wireless LAN I / F 20 by operating the operation unit 12 to execute a wireless communication according to the WFD using the wireless LAN I / F 20 (hereinafter referred to as “WFD = ON mode”). And a mode in which wireless communication according to WFD using the wireless LAN I / F 20 cannot be executed (hereinafter referred to as “WFD = OFF mode”). . The mode setting unit 46 sets either the WFD = ON mode or the WFD = OFF mode according to the user's operation. Specifically, the mode setting unit 46 stores a mode value representing a mode set by the user in the memory 34.

  In the state where the WFDI / F = OFF mode, the control unit 30 executes each process according to the WFD method (for example, a process for setting the MFP 10 to a spontaneous G / O mode described later, G / O negotiation, etc.). Can not do it. In the state where WFDI / F = ON, the memory 34 stores a value indicating the current state of the MFP 10 relating to WFD (any one of the G / O state, the client state, and the device state).

  The NFC I / F 22 is an interface for the control unit 30 to perform wireless communication according to the NFC scheme. The NFC I / F 22 is configured by a chip physically different from the W-Fi I / F 20.

  Note that the communication speed of wireless communication via the wireless LAN I / F 20 (for example, the maximum communication speed is 11 to 454 Mbps) is the communication speed of wireless communication via the NFC I / F 22 (for example, the maximum communication speed is 100 to 424 Kbps). ) Faster than. Furthermore, the frequency of the carrier wave (for example, 2.4 GHz band and 5.0 GHz band) in the wireless communication via the wireless LAN I / F 20 is the frequency of the carrier wave (for example, 13.56 MHz band) in the wireless communication via the NFC I / F 22. Is different. In addition, when the distance between the MFP 10 and the portable terminal 50 is approximately 10 cm or less, the control unit 30 can execute wireless communication with the portable terminal 50 according to the NFC scheme via the NFC I / F 22. On the other hand, regardless of whether the distance between the MFP 10 and the portable terminal 50 is 10 cm or less or 10 cm or more (for example, about 100 m at the maximum), the control unit 30 uses the WFD method via the wireless LAN I / F 20. Wireless communication in accordance with the mobile terminal 50 and wireless communication in accordance with normal Wi-Fi. That is, the maximum distance that the MFP 10 can execute wireless communication with a communication destination device (for example, the portable terminal 50) via the wireless LAN I / F 20 is the maximum distance that the MFP 10 can communicate with the communication destination device via the NFC I / F 22. It is larger than the maximum distance at which wireless communication can be performed.

  The control unit 30 includes a CPU 32 and a memory 34. The CPU 32 executes various processes according to the program stored in the memory 34. The functions of the units 40 to 46 are realized by the CPU 32 executing the process according to the program.

The memory 34 includes a ROM, a RAM, a hard disk, and the like. The memory 34 stores the above program executed by the CPU 32. The memory 34 includes a work area 38. When the MFP 10 currently belongs to the WFD network, the work area 38 communicates information indicating that the MFP 10 currently belongs to the WFD network and target data (for example, print data) via the WFD network. Wireless settings (including authentication method, encryption method, password, wireless network SSID (Service Set Identifier), BSSID (Basic Service Set Identifier)). The work area 38 includes information indicating that the MFP 10 currently belongs to the normal Wi-Fi network when the MFP 10 currently belongs to the normal Wi-Fi network, and target data via the normal Wi-Fi network. The wireless setting for executing the communication is stored. The SFD of the WFD network is a network identifier for identifying the WFD network, and the SSID of the normal Wi-Fi network is a network identifier for identifying the normal Wi-Fi network. A BSSID of a WFD network is an identifier unique to a device in a G / O state (for example, a MAC address of a device in a G / O state), and a BSSID of a normal Wi-Fi network is an identifier unique to an AP (for example, an AP Identifier).

  The work area 38 further stores a value indicating the current state of the WFD (G / O state, client state, or device state) when the MFP 10 is operating in accordance with the WFD method. The work area 38 further stores a mode value representing the WFD = ON mode or a mode value representing the WFD = OFF mode.

  Note that the user can set the MFP 10 to the spontaneous G / O mode by operating the operation unit 12. The spontaneous G / O mode is a mode in which the MFP 10 maintains operation in the G / O state. The work area 38 in the memory 34 further stores a value indicating whether or not the MFP 10 is set to the spontaneous G / O mode. When a WFD compatible device in the device state establishes a WFD connection with another WFD compatible device in the device state, it normally selects whether to operate in the G / O state or the client state. G / O negotiation is performed to determine automatically. When the MFP 10 is set to the spontaneous G / O mode, the MFP 10 maintains the operation in the G / O state without executing the G / O negotiation.

(Configuration of mobile terminal 50)
The mobile terminal 50 is, for example, a mobile phone (for example, a smartphone), a PDA, a notebook PC, a tablet PC, a portable music player, a portable video player, or the like. The portable terminal 50 includes two wireless interfaces, a wireless LAN I / F (that is, an interface for WFD and normal Wi-Fi) and an NFC I / F. Accordingly, the portable terminal 50 can execute wireless communication with the MFP 10 using the wireless LAN I / F, and can execute wireless communication with the MFP 10 using the NFC I / F. The portable terminal 50 includes an application program for causing the MFP 10 to execute a function (for example, a print function, a scan function, etc.). The application program may be installed on the portable terminal 50 from a server provided by the vendor of the MFP 10 or may be installed on the portable terminal 50 from a medium shipped with the MFP 10.

  Similar to the MFP 10, the portable terminal 50 includes a work area 58 in the memory 54. The work area 58 is a wireless setting (authentication method, encryption method, password, wireless) for performing communication through the network when the mobile terminal 50 currently belongs to the WFD network or the normal Wi-Fi network. Network SSID and BSSID). Further, when the mobile terminal 50 is operating in accordance with the WFD method, the work area 58 displays a state value indicating the state of the mobile terminal 50 (that is, any one of the G / O state, the client state, and the device state). Store.

(Configuration of PC8)
The PC 8 includes a wireless LAN I / F (that is, an interface for WFD and non-WFD), but does not include an NFC I / F. Accordingly, the PC 8 can execute communication with the MFP 10 using the wireless LAN I / F, but cannot execute wireless communication according to the NFC method. The PC 8 includes a driver program for causing the MFP 10 to execute processing (for example, printing processing, scanning processing, etc.). Note that the driver program is normally installed in the PC 8 from a medium shipped with the MFP 10. However, in a modification, the driver program may be installed on the PC 8 from a server provided by the vendor of the MFP 10.

(Configuration of AP6)
The AP 6 is not a device in the WFD G / O state, but is a normal access point called a wireless access point or a wireless LAN router. The AP 6 can establish normal Wi-Fi connection with a plurality of devices. Thereby, a normal Wi-Fi network including the AP 6 and a plurality of devices is constructed. The AP 6 receives data from one of a plurality of devices belonging to the normal Wi-Fi network, and transmits the data to another one of the plurality of devices. That is, the AP 6 relays communication between a pair of devices belonging to the normal Wi-Fi network.

  The difference between the WFD G / O state device and a normal AP is as follows. That is, when a device in the WFD G / O state leaves the WFD network to which the device currently belongs and newly belongs to another WFD network, the device is in a state other than the G / O state (that is, the client state). Can work. In contrast, a normal AP (that is, AP6) executes a function of relaying communication between a pair of devices regardless of which normal Wi-Fi network the AP belongs to, and cannot operate in a client state. .

(Communication process executed by MFP 10)
With reference to FIG. 2, a communication process executed by the MFP 10 will be described. The control unit 30 executes a communication process when the MFP 10 is turned on. In S2, the receiving unit 40 monitors reception of NFC information by executing wireless communication according to the NFC scheme. The receiving unit 40 receives NFC information via the NFC I / F 22. Specifically, the receiving unit 40 monitors whether an NFC communication session is established between the MFP 10 and the portable terminal 50. While the MFP 10 is turned on, the receiving unit 40 causes the NFC I / F 22 to transmit a radio wave for detecting a device that can perform wireless communication in accordance with the NFC scheme.

  The user of the portable terminal 50 starts an application program. The user operates the portable terminal 50 to cause the portable terminal 50 to generate NFC information including a process execution instruction (for example, a print instruction and a scan instruction) indicating a process to be executed by the MFP 10. The NFC information further includes the SSID and BSSID of the wireless network to which the mobile terminal 50 currently belongs when the mobile terminal 50 currently belongs to the wireless network. Note that the case where the mobile terminal 50 currently belongs to the wireless network means that at least one of the WFD connection and the normal Wi-Fi connection is connected between the mobile terminal 50 and another device (for example, AP6, MFP10). Is established.

  The user can bring the portable terminal 50 closer to the MFP 10. Thus, when the distance between portable terminal 50 and MFP 10 becomes smaller than the distance (for example, 10 cm) that radio waves reach each other, portable terminal 50 receives the radio waves from MFP 10 and transmits response radio waves to MFP 10. . As a result, the control unit 30 receives the response radio wave from the portable terminal 50 and establishes an NFC communication session. When the NFC communication session is established, the portable terminal 50 transmits the generated NFC information to the MFP 10.

When the NFC information is received (YES in S2), in S4, the determination unit 42 determines whether the MFP 10 currently belongs to the network. Specifically, the determination unit 42 stores in the work area 38 at least one of information indicating that it currently belongs to the WFD network and information indicating that it currently belongs to the normal Wi-Fi network. If it is determined that the MFP 10 currently belongs to the wireless network (YES in S4), the process proceeds to S6. On the other hand, the determination unit 42 determines whether the information indicating that it currently belongs to the WFD network and the information indicating that it currently belongs to the normal Wi-Fi network are not stored in the work area 38. Is not currently belonging to the wireless network (NO in S4), the process proceeds to S8.

  In S <b> 6, the determination unit 42 confirms whether the portable terminal 50 currently belongs to the network to which the MFP 10 currently belongs. Specifically, the determination unit 42 first determines whether the NSID information includes the SSID and BSSID of the network to which the mobile terminal 50 currently belongs. If the SSID and BSSID are not included in the NFC information, the determination unit 42 determines that the portable terminal 50 does not currently belong to the network to which the MFP 10 currently belongs (NO in S6). According to this configuration, the MFP 10 can appropriately determine that the portable terminal 50 does not currently belong to the network to which the MFP 10 currently belongs. When the NSID information includes the SSID and BSSID of the network to which the portable terminal 50 currently belongs, the determination unit 42 determines whether the SSID and BSSID included in the wireless settings stored in the work area 38 Determines whether the SSID and BSSID included in the NFC information match.

  If both the SSID and BSSID match, it is determined that the portable terminal 50 currently belongs to the network to which the MFP 10 currently belongs (YES in S6), and the process proceeds to S7. On the other hand, if at least one of the SSID and BSSID does not match, it is determined that the portable terminal 50 does not currently belong to the network to which the MFP 10 currently belongs (NO in S6), and the process proceeds to S8. According to this configuration, the MFP 10 can appropriately determine whether or not the mobile terminal 50 currently belongs to the network to which the MFP 10 currently belongs. In S6, the determination unit 42 determines whether or not the SSIDs match and determines whether or not the BSSIDs match. Accordingly, the determination unit 42 can determine whether the MFP 10 and the portable terminal 50 belong to the same wireless network constructed by the same AP. More specifically, one AP may construct a plurality of wireless networks by using a plurality of SSIDs. Therefore, if the BSSIDs match and the SSIDs do not match, the MFP 10 and the portable terminal 50 may belong to different wireless networks constructed by the same AP. In the present embodiment, it is possible to determine whether the MFP 10 and the portable terminal 50 belong to the same wireless network more reliably by determining whether both the SSID and the BSSID match. In the modified example, it is not necessary to determine whether the SSIDs match in S6 and whether the BSSIDs match. As a result, even when the MFP 10 and the portable terminal 50 belong to wireless networks constructed by different access points, if the SSID matches, it is determined that the MFP 10 and the portable terminal 50 belong to the same wireless network. obtain.

  When the mobile terminal 50 currently belongs to the network to which the MFP 10 currently belongs, the MFP 10 and the mobile terminal 50 can execute communication via the network to which the MFP 10 currently belongs. That is, the portable terminal 50 can perform wireless communication with the MFP 10 using the wireless settings currently stored in the work area 58. In S7, the control unit 30 transmits setting change unnecessary information indicating that data communication can be executed without changing the wireless setting of the portable terminal 50 via the NFC I / F 22, and the process proceeds to S22. Note that the setting change unnecessary information includes the IP address of the MFP 10.

  In S8, the determination unit 42 determines whether or not the WFD = ON mode is set. If the mode value stored in the memory 34 is a value representing the WFD = ON mode, the determination unit 42 determines YES in S8 and proceeds to S11. On the other hand, when the mode value stored in the memory 34 is a value representing the WFD = OFF mode, the determination unit 42 determines NO in S8 and proceeds to S9.

  In S9, the determination unit 42 determines whether or not the MFP 10 currently belongs to the normal Wi-Fi network. The determination unit 42 determines that the MFP 10 currently belongs to the normal Wi-Fi network (YES in S9) when information indicating that it currently belongs to the normal Wi-Fi network is stored in the work area 38. Then, the process proceeds to S21. On the other hand, when the information indicating that it belongs to the normal Wi-Fi network is not stored in the work area 38, the determination unit 42 determines that the MFP 10 does not currently belong to the normal Wi-Fi network (NO in S9). Determine and proceed to S10.

  In S10, the communication execution unit 44 changes the mode value stored in the memory 34 to change the WFD = OFF mode to the WFD = ON mode, and proceeds to S15. The communication execution unit 44 further stores setting change information indicating that the mode value has been changed in the memory 34.

  In S <b> 11, the determination unit 42 determines whether the MFP 10 is operating as a client state in the wireless network to which the MFP 10 currently belongs. Specifically, when the state value stored in the work area 38 is a value representing the client state, the determination unit 42 determines that the device is operating as the client state (YES in S11). On the other hand, when the state value stored in the work area 38 is not a value representing the client state, the determining unit 42 determines that the client state is not operating (NO in S11). If YES in S11, the process proceeds to S13. If NO in S11, the process proceeds to S12.

  In S13, the communication execution unit 44 transmits wireless settings other than the password among the G / O wireless settings stored in the work area 38 to the portable terminal 50 via the NFC I / F 22, and the process proceeds to S22. move on.

When the G / O wireless setting is received, the portable terminal 50 causes the user to specify a password. When the password is designated by the user, the portable terminal 50 establishes a connection with the device in the G / O state using the wireless setting received from the MFP 10 and the password designated by the user. As a result, the mobile terminal 50 receives M through the G / O state device.
Wireless communication with the FP 10 is possible. Note that if the connection between the portable terminal 50 and the device in the G / O state is not established, the MFP 10 cannot execute wireless communication with the portable terminal 50. In this case, the control unit 30 returns to S2 without executing the processes after S22.

  In the modification, the mobile terminal 50 may store the wireless settings used in the past for belonging to the network in the memory 54. In this case, when receiving the wireless setting that does not include the password, the mobile terminal 50 may include the same SSID as the SSID included in the received wireless setting and specify the wireless setting including the password from the memory 54. . Then, the mobile terminal 50 may establish a WFD connection with the PC 8 using the wireless setting specified from the memory 54.

  In S12, the determination unit 42 determines whether the MFP 10 is operating in the G / O state in the wireless network to which the MFP 10 currently belongs. Specifically, the determination unit 42 determines that the G / O state is operating when the state value stored in the work area 38 is a value representing the G / O state (YES in S12). ). On the other hand, when the state value stored in the work area 38 is not a value representing the G / O state, the determination unit 42 does not operate as the G / O state (that is, the MFP 10 is in the device state). Judgment is made (NO in S12). If YES in S12, the process proceeds to S14. If NO in S12, the process proceeds to S20.

In the modification, when YES is determined in S12, the determination unit 42 determines the number of devices other than the MFP 10 included in the WFD network in which the MFP 10 is operating in the G / O state (that is,
It may be determined whether or not the number of devices that have established a connection with the MFP 10 is less than a predetermined maximum number of clients. When it is determined that the number of pieces of device identification information stored in the management list is equal to the maximum number of clients, the communication execution unit 44 executes wireless communication with the portable terminal 50 using the NFC I / F 22. You may transmit the information which shows that cannot be performed to the portable terminal 50. FIG. On the other hand, when it is determined that the number of pieces of device identification information stored in the management list is smaller than the maximum number of clients, the process may proceed to S14.

  In S14, the communication execution unit 44 transmits the wireless setting of the MFP 10 stored in the work area 38 to the portable terminal 50 via the NFC I / F 22, and the process proceeds to S18. The wireless setting of the MFP 10 transmitted in S74 includes a password.

  The process of S20 is the same as the process of S9. If NO is determined in S20, the process proceeds to S15. If YES is determined in S20, the process proceeds to S21.

  In S15, the communication execution unit 44 sets the MFP 10 to the spontaneous G / O mode. The spontaneous G / O mode is a mode in which the MFP 10 maintains operation in the G / O state. Accordingly, the WFD network is not constructed in the step S15, but the MFP 10 is set to the G / O state. When the MFP 10 is set to the G / O state, the communication execution unit 44 allows the WFD compatible device and / or the non-WFD compatible device to perform wireless communication with the MFP 10 operating in the G / O state via the WFD network. Prepare wireless settings (SSID, BSSID, authentication method, encryption method, password, etc.) for execution. According to this configuration, regardless of whether the device that receives the wireless setting from the MFP 10 (the portable terminal 50 in this embodiment) is a WFD-compatible device or a WFD-incompatible device, the MFP 10 receives the wireless setting. Wireless communication can be executed.

  Note that the authentication method and the encryption method are determined in advance. Moreover, the communication execution part 44 produces | generates a password. The SSID may be generated by the communication execution unit 44 when generating the password, or may be determined in advance. BSSID is the MAC address of the MFP 10. At this stage, the management list managed by the MFP 10 does not describe the identification information of the device connected to the device in the G / O state.

  In S <b> 16, the communication execution unit 44 transmits the generated wireless setting to the mobile terminal 50 using the NFC I / F 22. When the process of S16 is executed after the process of S15, the communication execution unit 44 transmits the wireless setting prepared in the stage (S15) set to the spontaneous G / O mode to the portable terminal 50. When the process of S14 is executed after the process of S12, the communication execution unit 44 sets the wireless setting prepared at the stage where the WFD network in which the MFP 10 is operating in the G / O state is constructed to the NFCI / It transmits to the portable terminal 50 using F22.

  Next, in S <b> 18, the communication execution unit 44 establishes a WFD connection between the MFP 10 and the mobile terminal 50 using the wireless LAN I / F 20. When receiving the wireless setting of the MFP 10 operating in the G / O state from the MFP 10, the portable terminal 50 stores the received wireless setting in the work area 58. For this reason, the portable terminal 50 performs the following processes according to normal Wi-Fi. Next, the communication execution unit 44 performs authentication communication, authentication response, association request, association response, and 4-way handshake wireless communication with the mobile terminal 50. Various authentication processes such as SSID authentication, authentication method and encryption method authentication, password authentication, and the like are executed in the process of the wireless communication. When all the authentications are successful, a wireless connection is established between the MFP 10 and the portable terminal 50.

  In the process of S18, the communication execution unit 44 acquires the MAC address of the portable terminal 50 using the wireless LAN I / F 20. When the wireless connection is established, the control unit 30 further adds the MAC address of the portable terminal 50 to the management list. Note that the MAC address of the portable terminal 50 is included in the NFC information. As a result, the MFP 10 in the G / O state can perform communication of target data (print data, scan data, etc.) with the portable terminal 50 in accordance with normal Wi-Fi. The target data includes data in the network layer, which is a higher layer than the physical layer of the OSI reference model. Accordingly, the MFP 10 in the G / O state can execute wireless communication in the network layer with the portable terminal 50 in the client state. When the process of S18 ends, the process proceeds to S22.

  In S21, the communication execution unit 44 performs wireless settings other than the password among wireless settings for belonging to the normal Wi-Fi network stored in the work area 38, that is, wireless settings of the AP (for example, AP6), to NFC. The data is transmitted to the portable terminal 50 via the interface 22, and the process proceeds to S20. When the wireless setting of the AP is received, the portable terminal 50 establishes a connection with the AP using the wireless setting received from the MFP 10 and the password specified by the user, as in S13. Thereby, the portable terminal 50 can wirelessly communicate with the MFP 10 via the AP. Note that when the connection between the portable terminal 50 and the AP is not established, the MFP 10 cannot execute wireless communication with the portable terminal 50. In this case, the control unit 30 returns to S2 without executing the processes after S22.

  Next, in S <b> 22, the communication execution unit 44 executes data communication processing with the portable terminal 50 via the wireless LAN I / F 22. The content of the data communication process varies depending on the content of the process execution instruction included in the NFC information. When the process execution instruction is a print instruction, the communication execution unit 44 receives print data from the portable terminal 50 in the data communication process. In this case, the control unit 30 causes the print execution unit 16 to execute print processing using the received print data.

  On the other hand, when the process execution instruction is a scan instruction, the control unit 30 causes the scan execution unit 18 to scan the document set in the scan execution unit 18 and generate scan data. Next, the communication execution unit 44 transmits the generated scan data to the mobile terminal 50.

  Next, in S <b> 23, the communication execution unit 44 monitors reception of a disconnection request for disconnecting the connection with the portable terminal 50 from the portable terminal 50 using the wireless LAN I / F 20. If the disconnection request is not received even after the predetermined period has elapsed (NO in S23), the process returns to S2. On the other hand, when the disconnection request is received from the portable terminal 50 within a predetermined period after the data communication process of S20 is completed (YES in S23), the communication execution unit 44 disconnects the wireless connection with the portable terminal 50. . Specifically, the communication execution unit 44 deletes the MAC address of the portable terminal 50 in the management list. Next, in S24, the communication execution unit 44 determines whether the setting of the wireless LAN I / F 20 has been changed by the process of S9. Specifically, when the setting change information is stored in the memory 34, the communication execution unit 44 determines in S9 that the mode value indicating the WFD = OFF mode has been changed to the mode value indicating the WFD = ON mode. Then (YES in S24), the process proceeds to S25. On the other hand, when the setting change information is not stored in the memory 34, the communication execution unit 44 is not changed from the mode value indicating the WFD = OFF mode to the mode value indicating the WFD = ON mode in S9 (in S24). NO) and return to S2.

In S25, the communication execution unit 44 determines whether an external device (for example, PC8) other than the portable terminal 50 currently belongs to the WFD network newly constructed in S18. Specifically, when the management list includes identification information other than the identification information of the portable terminal 50, the communication execution unit 44 currently belongs to the WFD network (Y in S25).
ES). In this case, the mode value is not changed, and the process returns to S2. According to this configuration, it is possible to prevent the MFP 10 from being detached from the WFD network when an external device currently belongs to the WFD network.

  On the other hand, the communication execution unit 44 determines that the external device does not currently belong to the WFD network when the identification information other than the portable terminal 50 is not included in the management list (NO in S25). Proceed to S26. In S26, the communication execution unit 44 changes the mode value indicating the WFD = ON mode from the mode value indicating the WFD = OFF mode, and returns to S2. That is, in the communication process, when it is determined in S8 that the WFD = OFF mode, wireless communication using the wireless LAN I / F 20 is temporarily performed with the portable terminal 50 via the WFD network. , WFD = OFF mode is changed to WFD = ON mode. When the WFD = ON mode is changed to the WFD = OFF mode in S25, the WFD network constructed in S18 disappears. According to this configuration, when the mode value is changed from the mode value indicating the WFD = OFF mode to the mode value indicating the WFD = ON mode during communication processing, the mode value can be returned to the setting before the change. it can.

(Effect of this embodiment)
With reference to FIGS. 3-5, the effect of a present Example in the 1st-3rd situation is demonstrated. Each of FIGS. 3 to 7 shows a process corresponding to the communication process of FIG.

(First situation)
In the first situation shown in FIG. 3, the MFP 10 currently belongs to the WFD network. The MFP 10 operates in the G / O state in the WFD network. The PC 8 in the client state currently belongs to the WFD network. The MFP 10 further belongs to a non-WFD network. AP6 currently belongs to the normal Wi-Fi network. The portable terminal 50 does not currently belong to the wireless network to which the MFP 10 currently belongs. The portable terminal 50 may or may not belong to a wireless network other than the wireless network to which the MFP 10 currently belongs.

  In the sequence diagram of the present specification, the MFP 10 uses wireless communication using the NFC I / F 22 (that is, wireless communication according to the NFC method) and the MFP 10 uses wireless LAN I / F 20 (that is, the WFD method or normal Wi-Fi). -Wireless communication according to Fi) is represented by arrows. The arrow indicating the wireless communication using the wireless LAN I / F 20 is shown thicker than the arrow indicating the wireless communication using the NFC I / F 22.

In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, it is determined in S12 that the MFP 10 is in the G / O state (YES in S12). The NFC information includes the SSID and BSSID of the wireless network when the mobile terminal 50 currently belongs to the wireless network. However, if the mobile terminal 50 does not currently belong to the wireless network, the NFC information Does not include SSID and BSSID. In this case, in S <b> 14, the MFP 10 uses the NFC I / F 22 to carry out the wireless settings of the MFP 10 including the password and the IP address of the MFP 10 among the wireless settings of the MFP 10 stored in the work area 38. It transmits to the terminal 50. When the portable terminal 50 receives the wireless setting, the portable terminal 50 stores the received wireless setting in the work area 58. Next, the MFP 10 and the portable terminal 50 establish a WFD connection (S18). Thereby, the portable terminal 50 can belong to the WFD network to which the MFP 10 currently belongs. Note that the MFP 10 transmits wireless settings including the authentication method and the encryption method of the MFP 10 to the portable terminal 50 using the NFC I / F 22. According to this configuration, the portable terminal 50 can execute an authentication process according to the authentication method and the encryption method received from the MFP 10 and execute a process for confirming which authentication method and encryption method should be used. No need. For this reason, M
The FP 10 and the portable terminal 50 can establish a connection relatively early.

  Next, the portable terminal 50 transmits print data to the MFP 10 using the wireless settings stored in the work area 58 and the IP address received in S14. The MFP 10 receives the print data using the wireless LAN I / F 20 (S22). Upon receiving the print data, the MFP 10 causes the print execution unit 16 to execute print processing. According to this configuration, when the MFP 10 is operating in the G / O state in the WFD network, the MFP 10 communicates print data with the portable terminal 50 via the WFD network to which the MFP 10 currently belongs. Can be implemented properly.

  The MFP 10 currently belongs to both the WFD network and the normal Wi-Fi network. In this case, the portable terminal 50 transmits a wireless setting for belonging to the WFD network (that is, the wireless setting of the MFP 10 in the G / O state). On the other hand, the MFP 10 does not transmit the wireless setting for the mobile terminal 50 to belong to the normal Wi-Fi network (that is, the wireless setting of the AP 6). According to this configuration, the MFP 10 can preferentially transmit the wireless settings of the MFP 10 to the portable terminal 50. If the MFP 10 transmits a wireless setting for belonging to the normal Wi-Fi network (that is, the wireless setting of the AP 6), the wireless setting that does not include a password is transmitted. In this case, if the mobile terminal 50 and the user of the mobile terminal 50 do not know the password, the mobile terminal 50 cannot belong to the normal Wi-Fi network. That is, the MFP 10 and the portable terminal 50 cannot execute wireless communication of target data. With this configuration, the occurrence of the above situation can be avoided.

(Second situation)
In the second situation shown in FIG. 4, the MFP 10 currently belongs to the WFD network. The MFP 10 operates as a client state in the WFD network. In the WFD network, the PC 8 in the G / O state currently belongs, but the portable terminal 50 does not currently belong. The portable terminal 50 is the same as in the first situation.

  In this situation, when the NFC information is received from the portable terminal 50 using the NFC I / F 22, the MFP 10 determines that the MFP 10 is in the client state in S10 (YES in S11). In this case, in S <b> 13, the MFP 10 uses the NFC I / F 22 to carry out the wireless settings that do not include the password among the wireless settings of the PC 8 operating in the G / O state and the IP address of the MFP 10. It transmits to the terminal 50. According to this configuration, it is not necessary to provide a password to the portable terminal 50 and the user. As a result, when the portable terminal 50 and the user do not know the password for belonging to the WFD network in which the PC 8 is operating in the G / O state, the portable terminal 50 is prevented from entering the WFD network. Can do.

  When the portable terminal 50 receives the wireless setting, the portable terminal 50 stores the received wireless setting in the work area 58. Next, the mobile terminal 50 displays a password designation screen on the display unit of the mobile terminal 50. The user can specify a password by operating the operation unit of the mobile terminal 50. The portable terminal 50 establishes a WFD connection with the PC 8 when a password is designated by the user. Thereby, the portable terminal 50 can belong to the WFD network to which the MFP 10 currently belongs. The portable terminal 50 operates as a client state in the WFD network.

When the portable terminal 50 belongs to the WFD network, print data is transmitted by executing wireless communication via the PC 8 using the wireless setting stored in the work area 58 and the IP address of the MFP 10 received in S13. Is transmitted to the MFP 10. When the MFP 10 receives print data from the PC 8 using the wireless LAN I / F 20 (S22), the MFP 10 causes the print execution unit 16 to execute print processing when the print data is received.

(Third situation)
In the third situation shown in FIG. 5, the MFP 10 currently belongs to the normal Wi-Fi. The MFP 10 is connected to the AP 6 in normal Wi-Fi. On the other hand, the MFP 10 does not currently belong to the WFD network. The portable terminal 50 is the same as in the first situation.

  In this situation, when NFC information is received from the portable terminal 50 using the NFC I / F 22, the MFP 10 determines that the MFP 10 does not belong to the WFD network (NO in S8 or NO in S11 and S12). . That is, the MFP 10 does not have the wireless setting of the WFD network to be transmitted with priority.

  In this case, in S <b> 21, the MFP 10 transmits the wireless setting that does not include the password among the wireless settings of the AP 6 stored in the work area 38 to the portable terminal 50. According to this configuration, it is not necessary to provide a password to the portable terminal 50 and the user. As a result, when the mobile terminal 50 and the user do not know the password for belonging to the normal Wi-Fi network where the AP 6 is used, the mobile terminal 50 can be prevented from belonging to the normal Wi-Fi network. it can.

  When receiving the wireless setting, the portable terminal 50 receives the wireless setting and causes the user to specify a password, as in the tenth situation. Next, when a password is designated by the user, the portable terminal 50 establishes a normal Wi-Fi connection with the AP 6. Thereby, the portable terminal 50 can belong to the normal Wi-Fi network to which the MFP 10 currently belongs. The portable terminal 50 can transmit print data with the MFP 10 via the AP 6. When the portable terminal 50 belongs to the normal Wi-Fi network, the portable terminal 50 performs wireless communication via the AP 6 by using the wireless setting stored in the work area 58 and the IP address of the MFP 10 received in S21. The print data is transmitted to the MFP 10.

  In this embodiment, the MFP 10 includes the password in the wireless setting to be transmitted to the portable terminal 50 depending on whether the MFP 10 currently belongs to the WFD network or the normal Wi-Fi network. Change whether or not. If the MFP 10 is connected to the AP 6 (that is, currently belongs to the WFD network) and the MFP 10 transmits the wireless setting of the AP 6 including the password, the mobile terminal that is not intended by the administrator of the network to which the AP 6 belongs. 50 will enter the network. The MFP 10 can suppress the above situation.

  On the other hand, when the MFP 10 is operating in the G / O state in the network to which the MFP 10 currently belongs, the MFP 10 transmits wireless settings including a password for the portable terminal 50 to the portable terminal 50. According to this configuration, the MFP 10 can execute communication of target data with the mobile terminal at a relatively high communication speed using the wireless LAN I / F 20.

(Correspondence)
The MFP 10 is an example of a “communication device”, the NFC I / F 22 is an example of a “first type interface”, and the wireless LAN I / F 20 is an example of a “second type interface”. Note that, from the above description, the NFC I / F 22 (that is, the “first type interface”) performs the communication using the wireless LAN I / F 20 (that is, the “second type interface”). It can be said that the interface is used for communication performed between the communication device “) and the portable terminal 50.

  AP6 is an example of an “access point”. That is, an “access point” is a device that relays communication between a pair of devices belonging to a non-WFD network in a network to which the access point belongs.

  Wireless communication executed in accordance with WFD is an example of “first type wireless communication”, and wireless communication executed in accordance with non-WFD is an example of “second type wireless communication”. The WFD network is an example of a “first wireless network”, and the non-WFD network is an example of a “second wireless network”. The G / O state is an example of a “master station state”, and the client state is an example of a “slave station state”.

  The wireless setting transmitted in S14 of FIG. 2 is an example of “first wireless setting” and “third wireless setting”, and the wireless setting transmitted in S21 is an example of “second wireless setting”. , The wireless setting transmitted in S13 is an example of “fourth wireless setting”.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. The modifications of the above embodiment are listed below.

(Modification)
(1) In the above embodiment, upon receiving NFC information (YES in S2), the MFP 10 determines whether it currently belongs to the network (S4), and if it is determined that it belongs to the network (in S4) YES), it is determined whether the MFP 10 and the portable terminal 50 currently belong to the same network (S6). However, the process of S6 may be omitted. That is, when the MFP 10 receives the NFC information (YES in S2), it determines whether it currently belongs to the network (S4). If it is determined that it currently belongs to the network (YES in S4), the MFP 10 and subsequent steps You may proceed to processing.

(2) The “communication device” is not limited to a multi-function device, and is another device (for example, a printer, a FAX device, a copier, a scanner, etc.) having a first type interface and a second type interface Also good.

(3) The MFP 10 may store an AP program for functioning as an access point. When starting the AP program, the control unit 30 may store a predetermined wireless setting in the work area 38. In this case, together with or instead of S8, S11, and S12 in FIG. 2, the determination unit 42 may determine whether or not the AP program is being activated. When it is determined that the AP program is being activated, the wireless setting stored in the work area 38 and including the password may be transmitted to the portable terminal 50. In the present modification, the wireless communication performed by the MFP 10 operating according to the AP program and the portable terminal 50 is an example of “first type wireless communication”.

(4) The combination of the “first type interface” and the “second type interface” is not limited to the combination of the NFC I / F and the wireless LAN I / F. For example, when the wireless LAN I / F is adopted as the “second type interface”, the “first type interface” may be an interface for executing infrared communication, or Bluetooth (registered trademark). It may be an interface for executing “Transfer Jet” or an interface for executing “Transfer Jet”. In addition, when NFC I / F is adopted as the “first type interface”, the “second type interface” may be an interface for executing wired communication, or Bluetooth (registered trademark) may be used. It may be an interface for execution. Generally speaking, it is only necessary that the communication speed of communication through the second type interface is higher than the communication speed of communication through the first type interface.

(5) The “first type interface” and the “second type interface” are physically two interfaces (that is, two separate IC chips) as in the above embodiment. Alternatively, it may be physically one interface (that is, two kinds of communication are realized by one IC chip).

(6) In each of the above embodiments, there is physically one interface for executing wireless communication in accordance with the WFD scheme and an interface for executing wireless communication in accordance with normal Wi-Fi. The interface (wireless LAN I / F 20) may be physically a plurality of interfaces (that is, two separate IC chips). In the present modification, the plurality of interfaces are an example of “second type interface”.

(7) In each of the above embodiments, each unit 40 to 46 is realized by software, but at least one of each unit 40 to 46 may be realized by hardware such as a logic circuit.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

2: communication system, 6: AP, 8: PC, 10: MFP, 20: NFC interface, 22: Wi-Fi interface, 30: control unit, 50: portable terminal

Claims (6)

A communication device,
A first type interface for performing wireless communication with the mobile terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of wireless communication via the second type interface is a communication speed of wireless communication via the first type interface. Faster than the second type interface,
A control unit, wherein the communication device is capable of executing the first type of wireless communication using an access point different from the communication device and the portable terminal using the second type of interface. The second type of wireless communication using the access point can be executed,
The controller is
(A) a first radio for the portable terminal to belong to the first radio network in a first case where the communication apparatus belongs to a first radio network for executing the first type of radio communication; The first wireless setting including a password is transmitted to the mobile terminal using the first type interface, and then transmitted to the mobile terminal using the second type interface. Performing wireless communication of target data via the first wireless network;
(B) a second radio for the portable terminal to belong to the second radio network in a second case where the communication apparatus belongs to a second radio network for executing the second type of radio communication; After the second wireless setting that is a setting and does not include a password is transmitted to the portable terminal using the first type interface, the portable terminal is used using the second type interface. And a communication device for performing wireless communication of target data via the second wireless network. The controller is
(C) If the communication device currently belongs to both the first wireless network and the second wireless network, the first wireless setting including the password is changed to the first type interface. The communication apparatus according to claim 1, wherein the second wireless setting is not transmitted to the portable terminal via the first type interface. The communication apparatus includes a master station state that functions as a master station of a wireless network, a slave station state that functions as a slave station of the wireless network, and a device state that is different from the master station state and the slave station state. Can selectively operate in any one of a plurality of states,
The communication device is capable of executing the first type of wireless communication by operating in one of the master station state and the slave station state in the wireless network,
The control unit, in the first case,
(A1) When the communication apparatus is operating as the master station state in the first wireless network, the first wireless setting including the password is performed using the first type interface. After transmitting to the mobile terminal, using the second interface, wireless communication of the target data via the mobile terminal and the first wireless network,
(A2) When the communication device is operating as the slave station state in the first wireless network, the first wireless setting not including the password is performed using the first type interface. After transmitting to the portable terminal, the second interface is used to perform wireless communication of the target data via the first wireless network with the portable terminal, and via the second interface. The communication apparatus according to claim 1, wherein wireless communication of the target data with the portable terminal is performed. Among a plurality of states including a master station state that functions as a master station of a wireless network, a slave station state that functions as a slave station of the wireless network, and a device state that is different from the master station state and the slave station state In the wireless network, the wireless network operates in one of the master station state and the slave station state, thereby enabling a specific operation via the wireless network. A communication device capable of performing wireless communication,
A first type interface for performing wireless communication with the mobile terminal;
A second type interface for performing wireless communication with the portable terminal, wherein a communication speed of communication through the second type interface is higher than a communication speed of communication through the first type interface. A fast, second type interface;
A control unit,
The controller is
In the case where the communication device currently belongs to a specific wireless network for performing the specific wireless communication,
(D) a third wireless setting for allowing the mobile terminal to participate in the specific wireless network when the communication device is operating as the master station state, and including a password; After the setting is transmitted to the portable terminal using the first type interface, wireless communication of target data is performed via the specific wireless network with the portable terminal using the second interface. And
(E) a fourth wireless setting for allowing the mobile terminal to participate in the specific wireless network when the communication device is operating in the slave station state, and the fourth wireless setting does not include a password; After the wireless setting is transmitted to the portable terminal using the first type interface, wireless communication of target data via the specific wireless network is performed using the second interface with the second interface. A communication device to execute. The first type interface for executing communication with the portable terminal and the second type interface for executing communication with the portable terminal, wherein the communication speed of communication using the second type interface is: A computer program for a communication device comprising the second type interface, which is faster than the communication speed of communication using the first type interface,
Using the second type interface, the first type of wireless communication in which an access point different from the communication device and the mobile terminal is not used can be executed with the mobile terminal, and the access point is used. The following processing is performed on a computer mounted on the communication device that can execute the second type of wireless communication with the portable terminal:
In the first case where the communication device belongs to a first wireless network for executing the first type of wireless communication, the portable terminal is configured to be a first wireless setting for belonging to the first wireless network. The first wireless setting including the password is transmitted to the portable terminal using the first type interface, and then the portable terminal and the first type are used using the second type interface. Wireless communication of the target data through the wireless network of
In the second case where the communication device belongs to a second wireless network for executing the second type of wireless communication, the portable terminal is a second wireless setting for belonging to the second wireless network. The second wireless setting not including a password is transmitted to the portable terminal using the first type interface, and then the portable terminal and the second type are used using the second type interface. The computer program which performs the control processing which performs the radio | wireless communication of the target data via 2 radio | wireless networks. Among a plurality of states including a master station state that functions as a master station of a wireless network, a slave station state that functions as a slave station of the wireless network, and a device state that is different from the master station state and the slave station state In the wireless network, the wireless network operates in one of the master station state and the previous slave station state, thereby enabling a specific operation via the wireless network. A computer program for a communication device capable of performing wireless communication,
A first type interface for performing wireless communication with the portable terminal, and a second type interface for performing wireless communication with the portable terminal, the communication speed using the second type interface. The computer includes the second type interface, which is faster than the communication speed of the communication using the first type interface.
When the communication device is operating as the master station state, the portable terminal is a wireless setting for participating in the specific wireless network, and the wireless setting including a password is changed to the first type interface. After transmitting to the mobile terminal using the second interface, using the second interface, perform wireless communication of the target data via the mobile terminal and the specific wireless network,
When the communication device is operating as the slave station state, the portable terminal is a fourth wireless setting for participating in the specific wireless network, and the wireless setting not including the password is Control processing for performing wireless communication of target data via the specific wireless network with the portable terminal using the second interface after transmitting to the portable terminal using the first type interface A computer program to be executed.

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