JP2012165075A - Communication device, communication system, control method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance security when additional information is added to image data and transmitted to other communication device.SOLUTION: The communication device functions as a first communication device which transmits image data to other communication device. The communication device includes a storage means for storing the image data, an addition means for adding additional information provided by a second communication device to the image data stored by the storage means, and a transmission means for transmitting the image data to which the additional information is added by the addition means, or the image data to which the additional information is not added by the addition means according to the fact whether or not the second communication device is connected with a predetermined network when the image data stored by the storage means is transmitted to a third communication device over the predetermined network.

Description

  The present invention relates to a communication device, a communication system, a control method, and a program.

  Many of images captured by an imaging device (for example, a digital camera, a mobile phone, a PDA, etc.) are stored in an Exif (Exchangeable image file format) format standardized by JEIDA. Information other than the image is added as additional information to the image stored in the Exif format. The additional information is automatically added by the imaging device at the time of imaging.

  Also, a method for transferring information to be added to Exif from a communication device (for example, a mobile phone) to the imaging device, and adding the transferred information to Exif in the imaging device is known (Patent Document 1). ).

JP 2009-60423 A

  Here, personal information (for example, e-mail address, name, etc.) may be added to the Exif of the captured image and transmitted. In this case, the image may be stolen by another person due to impersonation or illegal acquisition.

  In this way, when an image is stolen by another person, confidential information such as personal information added to the image is leaked. In addition, when the user unintentionally transfers an image to which confidential information such as personal information is added to another person, the user does not know the leakage of the information and informs the other person Will cross.

  The present invention has been made in view of the above problems, and an object thereof is to improve security when additional information is added to image data and transmitted to another communication apparatus.

  In order to solve the above-described problem, an aspect of the present invention is a communication device that functions as a first communication device that transmits image data to another communication device, the storage unit storing image data, Addition means for adding additional information provided by the second communication device to the image data stored by the storage means; and the image data stored by the storage means to the third communication device via a predetermined network. At the time of transmission, depending on whether or not the second communication device is connected to the predetermined network, the additional information is added by the adding means, or the additional information is added by the adding means. Transmission means for transmitting image data not added.

  ADVANTAGE OF THE INVENTION According to this invention, the security at the time of adding additional information to image data and transmitting to another communication apparatus can be improved.

The figure which shows an example of a structure of the communication system concerning one embodiment of this invention. The figure which shows an example of the hardware constitutions of the digital camera 10 shown in FIG. The figure which shows an example of the functional structure implement | achieved by the control part 46 shown in FIG. The figure which shows an example of the hardware constitutions of the mobile telephone 20 (mobile telephone 21 and 22) shown in FIG. The figure which shows an example of the functional structure implement | achieved by the control part 59 of the mobile telephone 21. FIG. The figure which shows an example of a functional structure implement | achieved by the control part 59 of the mobile telephone 22. FIG. The sequence chart which shows an example of the flow of a process of the communication system shown in FIG. 5 is a flowchart illustrating an example of a processing flow of the digital camera 10. The flowchart which shows an example of the flow of a process of the mobile telephone. The flowchart which shows an example of the flow of a process of the mobile telephone. The flowchart which shows an example of the flow of a process of the mobile telephone. 5 is a flowchart illustrating an example of a processing flow of the digital camera 10. The flowchart which shows an example of the flow of a mobile telephone 21 process. The flowchart which shows an example of the flow of a process of the mobile telephone.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a diagram showing an example of a configuration of a communication system according to an embodiment of the present invention.

  A digital camera 10 and a mobile phone 20 (21, 22) are communicably connected to a communication system via a predetermined communication network (in this embodiment, a wireless local area network (LAN) 30). Yes. These terminals communicate with each other using ad hoc communication in a wireless LAN (also referred to as a wireless network) constructed by the mobile phone 21. Although details will be described later, each terminal has a built-in computer.

  Here, the digital camera 10 functions as a first communication device and captures various images. In the digital camera 10, the captured image is stored in the Exif format, and imaging information and the like are added to the image as additional information. In the present embodiment, a digital camera will be described as an example of the first communication device, but the present invention is not limited to this. Specifically, any device that can store an image and can add the above-described additional information to the image may be used, for example, a mobile phone, a portable music player, a PDA (Personal Digital Assistance), a PC, or the like. good.

  The mobile phone 20 functions as a communication device and performs communication using the wireless LAN 30. In the present embodiment, a mobile phone will be described as an example of a communication device, but the present invention is not limited to this. Specifically, any device having a communication function may be used. For example, a PC (Personal Computer), a portable music player, a PDA, or the like may be used.

  Here, in the present embodiment, the personal information held in the mobile phone 21 is transferred to the digital camera 10, and the digital camera 10 adds the personal information to the Exif of the captured image and transfers it to the mobile phone 22. The case where it does is demonstrated.

  That is, in the present embodiment, the mobile phone 21 functions as a provider that provides personal information of the user who owns the mobile phone 21 to other terminals (second communication device). In addition, the mobile phone 22 functions as a transmission destination of personal information for receiving from the digital camera 10 an image to which the personal information of the user holding the mobile phone 21 is added (third communication device).

  In the present embodiment, personal information (mobile phone number, name, email address, etc.) is described as an example of confidential information (confidential information). However, the present invention is not limited to this.

  The above is the description of an example of the configuration of the communication system according to the present embodiment, but this configuration can be changed as appropriate. For example, FIG. 1 shows a case where one mobile phone 21, one mobile phone 22, and one digital camera 10 are provided, but it is needless to say that a plurality of these terminals may be provided.

  Next, an example of the hardware configuration of the digital camera 10 shown in FIG. 1 will be described with reference to FIG.

  The digital camera 10 includes a wireless LAN antenna 41a, a wireless LAN antenna control unit 41, a wireless LAN communication processing unit 42, an output unit 43, an imaging unit 44, a lens 45, a control unit 46, and a storage unit 47. The power supply unit 48 and the input unit 49 are provided.

  The wireless LAN antenna control unit 41 controls the wireless LAN antenna 41a. The wireless LAN communication processing unit 42 performs communication using the wireless LAN 30 communication network via the wireless LAN antenna 41 a and the wireless LAN antenna control unit 41. The imaging unit 44 performs imaging through the lens 45. The power supply unit 48 supplies power to each component unit.

  The control unit 46 is realized by, for example, a CPU (Central Processing Unit) or the like, and comprehensively controls the operation of each component unit. The storage unit 47 is realized by a RAM (Random Access Memory), a ROM (Read Only Memory), an external storage device (for example, a memory card), and the like, and stores various types of information (for example, a program). For example, one or a plurality of images captured by the digital camera 10 are stored in the recording unit 47.

  The output unit 43 is realized by, for example, an LCD (Liquid Crystal Display), an LED (Light Emitting Diode), or the like, and outputs (displays) various information to the user. The input unit 49 is realized by, for example, a touch panel or buttons, and inputs an instruction from the user into the apparatus.

  Here, an example of a functional configuration realized in the control unit 46 illustrated in FIG. 2 will be described with reference to FIG. Each configuration in the control unit 46 is realized, for example, by the CPU reading and executing a program stored in the ROM or the like. Of course, a part or all of the configuration in the control unit 46 may be realized by a dedicated hardware configuration.

  In the control unit 46, a wireless LAN communication control unit 71, a registration unit 72, a transmission unit 76, a personal information addition unit 79, and a terminal confirmation unit 80 are realized as functional configurations.

  The wireless LAN communication control unit 71 controls communication via the wireless LAN 30. More specifically, it functions as a driver for performing various controls of wireless LAN communication conforming to the IEEE802.11 series and a protocol related to wireless LAN communication.

  The registration unit 72 registers various information in the storage unit 47 and the like. The registration unit 72 includes a provider registration unit 73, a personal information registration unit 74, and a destination information registration unit 75. The provider registration unit 73 registers the identification information of the personal information provider terminal (mobile phone 21). The identification information may be anything as long as it can identify the providing terminal.

  The personal information registration unit 74 registers the provided personal information. In this embodiment, a case where a MAC address is registered will be described. The destination information registration unit 75 registers the destination information of the personal information destination terminal (mobile phone 22).

  The transmission unit 76 determines whether or not to add personal information to an image transmitted to an image transmission destination terminal, and a destination (specified by the personal information provider terminal (mobile phone 21)) ( And an image transmission unit 78 that transmits the captured image to the transmission destination). Note that the image transmission unit 78 may transmit an image without adding personal information depending on the determination result of the determination unit 77.

  The personal information adding unit 79 adds personal information to the captured image. Whether or not to add personal information to the image is determined based on the determination result of the determination unit 77. The terminal confirmation unit 80 confirms whether or not the connection destination terminal is a valid terminal. That is, it is confirmed whether or not the connection destination terminal is not impersonation. In the present embodiment, it is confirmed whether or not the terminal is a valid terminal by performing authentication processing.

  Next, an example of the hardware configuration of the mobile phone 20 (mobile phones 21 and 22) shown in FIG. 1 will be described with reference to FIG.

  The mobile phone 20 includes a public wireless antenna 51a, a public wireless antenna control unit 51, a public wireless communication processing unit 52, an output unit 53, an input unit 54, a call unit 55, a microphone 56, a control unit 59, The storage unit 60 and the power supply unit 61 are provided. The mobile phone 20 is also provided with a wireless LAN antenna 57a, a wireless LAN antenna control unit 57, a wireless LAN communication processing unit 58, a short-range wireless antenna 62a, a short-range wireless antenna control unit 62, and a short-range wireless communication processing unit 63. It is done.

  The public wireless antenna control unit 51 controls the public wireless antenna 51a. The public wireless communication processing unit 52 performs communication using a public communication network (for example, a mobile phone network) via the public wireless antenna 51a and the public wireless antenna control unit 51. Communication by the public wireless communication processing unit 52 is performed in accordance with, for example, the IMT (International Mobile Telecommunication) standard, the LTE (Long Term Evolution) standard, or the like.

  The wireless LAN antenna control unit 57 controls the wireless LAN antenna 57a. The wireless LAN communication processing unit 58 performs communication using the wireless LAN 30 communication network via the wireless LAN antenna 57 a and the wireless LAN antenna control unit 57.

  The short-range wireless antenna control unit 62 controls the short-range wireless antenna 62a. The short-range wireless communication processing unit 63 performs communication using a short-range communication network via the short-range wireless antenna 62a and the short-range wireless antenna control unit 62. Examples of the near field communication network include (for example, NFC (Near Field Communication), IrDA (Infrared Data Association)) and the like.

  The power supply unit 61 supplies power to each component unit. The call unit 55 inputs voice (voice signal) from the user through the microphone 56 into the apparatus and processes the voice signal. The control unit 59 is realized by a CPU or the like, for example, and comprehensively controls the operation of each component unit. The storage unit 60 is realized by a RAM, a ROM, or the like, and stores various types of information (for example, programs).

  The output unit 53 is realized by, for example, an LCD or LED, and outputs (displays) various information to the user. Note that the output unit 53 may be capable of outputting sound such as a speaker. The input unit 54 is realized by, for example, a touch panel or buttons, and inputs an instruction from a user into the apparatus.

  Next, an example of a functional configuration realized by the control unit 59 illustrated in FIG. 4 will be described with reference to FIGS. 5 and 6. Each configuration in the control unit 59 is realized, for example, by the CPU reading and executing a program stored in the ROM or the like. Of course, part or all of the configuration in the control unit 59 may be realized by a dedicated hardware configuration.

  Here, first, an example of a functional configuration realized by the control unit 59 in the mobile phone 21 will be described with reference to FIG.

  As a functional configuration, the control unit 59 of the mobile phone 21 includes a wireless LAN communication control unit 81, a public wireless communication control unit 82, a short-range wireless communication control unit 83, an information processing unit 84, and a connection terminal determination. The unit 89, the status notification unit 90, and the terminal confirmation unit 91 are realized.

  The wireless LAN communication control unit 81 controls communication via the wireless LAN 30. More specifically, it functions as a driver for performing various controls of wireless LAN communication conforming to the IEEE802.11 series and a protocol related to wireless LAN communication.

  The public wireless communication control unit 82 controls communication via the public communication network. More specifically, it functions as a driver for controlling various types of public wireless communication and a protocol related to public wireless communication.

  The near field communication control unit 83 controls communication via the near field communication network. More specifically, it functions as a driver for performing various controls for short-range wireless communication and a protocol for short-range wireless communication.

  The information processing unit 84 performs various processes related to personal information. The information processing unit 84 includes a provision destination registration unit 85, a personal information provision unit 86, a destination information registration unit 87, and a destination information provision unit 88. The provision destination registration unit 85 registers the identification information of the personal information provision destination terminal (digital camera 10). Similarly to the above, the identification information may be anything as long as it can identify the providing terminal. In this embodiment, a case where a MAC address is registered will be described.

  The personal information providing unit 86 provides personal information to a personal information providing terminal. The destination information registration unit 87 registers the destination information of the personal information destination terminal (mobile phone 22). The destination information providing unit 88 provides a personal information destination (transmission destination) to a personal information providing destination terminal (digital camera 10).

  The connection terminal determination unit 89 determines a terminal connected to the wireless network 30 constructed by the own terminal (mobile phone 21). The state notification unit 90 notifies the state of the terminal (mobile phone 21) in response to a notification (state check request) for checking the state of the mobile phone 21 from the digital camera 10. The terminal confirmation unit 91 confirms whether or not the connection destination terminal is a valid terminal. That is, it is confirmed whether or not the connection destination terminal is not impersonation. In the present embodiment, it is confirmed whether or not the terminal is a valid terminal by performing authentication processing.

  Next, an example of a functional configuration realized by the control unit 59 in the mobile phone 22 will be described with reference to FIG.

  The control unit 59 of the mobile phone 22 includes, as functional configurations, a wireless LAN communication control unit 81, a public wireless communication control unit 82, a short-range wireless communication control unit 83, an information processing unit 84, and an image receiving unit. 93 and the additional information determination unit 94 are realized. In addition, the same code | symbol is attached | subjected about the structure which performs the function similar to the structure shown in FIG. 5, and the description may be abbreviate | omitted.

  The image receiving unit 93 receives an image to which personal information is added from the digital camera 10. The image receiving unit 93 also receives an image with no personal information added.

  The additional information determination unit 94 determines whether or not personal information is added to the image received from the digital camera 10. In addition, the information processing unit 84 is provided with a personal information registration unit 92 that registers the personal information in the storage unit 60 or the like when an image to which personal information is added is sent from the digital camera 10.

  Here, an example of the flow of processing in the communication system shown in FIG. 1 will be described with reference to FIG.

  First, the mobile phone 21 shifts to the personal information provision registration mode based on, for example, a user instruction (S101). In this mode, registration of the personal information providing destination terminal (in this case, the digital camera 10) is performed.

  When this registration process is started, the mobile phone 21 first constructs the wireless network 30 (S102). After construction of the wireless network 30, the mobile phone 21 waits for connection with another terminal. Here, the digital camera 10 also shifts to the personal information provision registration mode based on, for example, a user instruction (S103). In this mode, registration of the personal information provider terminal (mobile phone 21) is performed.

  When this registration process is started, the digital camera 10 first searches for a surrounding wireless network, and performs a connection process to the searched wireless network. Here, it is assumed that the digital camera 10 performs a connection process to the wireless network 30 constructed by the mobile phone 21 in the process of S102 (S104).

  Here, when detecting the connection of the digital camera 10, the mobile phone 21 determines whether or not it is a valid terminal as a personal information providing destination. Also in the digital camera 10, as with the mobile phone 21, it is determined whether the terminal is a valid terminal as a personal information provider. Here, it is assumed that both the digital camera 10 and the mobile phone 21 are determined to be valid terminals.

  The mobile phone 21 and the digital camera 10 perform personal information registration processing (S105). In the personal information registration process, first, a registration process of a partner terminal as a personal information provider terminal and a personal information provider terminal is performed between the terminals. Here, for example, a MAC address is registered as identification information for identifying each other. In that case, the MAC address of the wireless LAN interface (wireless LAN communication processing units 42 and 58) may be used.

  When the registration process is completed, the mobile phone 21 transmits personal information to the digital camera 10. In this case, the mobile phone 21 transmits information such as the telephone number, name, and mail address of the user who owns the mobile phone 21 as the personal information (S106).

  The digital camera 10 that has received the personal information stores the personal information in the storage unit 47, for example. At that time, for example, the received personal information and the identification information of the personal information provider terminal are stored in association with each other.

  When the personal information is stored, the digital camera 10 terminates the personal information provision registration mode (S108) after performing a disconnection process from the wireless network 30 (S107). Also in the cellular phone 21, after the personal information is transmitted, the construction of the wireless network 30 is terminated and the personal information provision registration mode is terminated (S109). Through the above processing, terminal identification information and personal information are registered between the digital camera 10 and the mobile phone 21.

  Next, the flow of processing when registering information for identifying each other as destination information in the image providing source terminal (mobile phone 21) and destination terminal (mobile phone 22) to which personal information is added will be described.

  In this process, first, the mobile phone 21 performs a registration process of an image transmission destination (destination) terminal (mobile phone 22) to which personal information is added. The mobile phone 21 shifts to the destination information registration mode based on, for example, a user instruction (S110). The mobile phone 22 also shifts to the destination information registration mode based on the user's instruction or the like (S111).

  When the destination information registration process is started, the mobile phone 21 activates short-range wireless communication and waits for a connection from the mobile phone 22. In the mobile phone 22, short-range wireless communication is activated and a connection from the mobile phone 21 is awaited. At this time, the user brings the short-range wireless antennas 62a of the mobile phone 21 and the mobile phone 22 close to each other. Thereby, both terminals are connected to each other by short-range radio. When the connection process is started, each of the mobile phones 21 and 22 performs a destination information registration process (S112).

  In the destination information registration process, for example, the mobile phone 22 transmits the MAC address of the wireless LAN interface (wireless LAN communication processing unit 58) to the mobile phone 21 as identification information of the terminal (mobile phone 22). In addition, the mobile phone 21 transmits the MAC address of the wireless LAN interface (wireless LAN communication processing unit 58) to the mobile phone 22 as identification information of the own terminal (mobile phone 21). Note that the communication parameters of the wireless network 30 constructed by the mobile phone 21 are also transmitted to the mobile phone 22 during the destination information registration process.

  When the destination information registration process is completed, the mobile phone 21 stores the identification information of the mobile phone 22 as the destination information, and ends the destination information registration mode (S113). The mobile phone 22 also saves the identification information of the mobile phone 21 as destination information, saves the communication parameters of the wireless network 30, and ends the destination information registration mode (S114).

  Next, a processing flow when an image with personal information added from the digital camera 10 is transmitted to the mobile phone 22 will be described.

  In this process, first, the mobile phone 21 shifts to the personal information provision mode based on, for example, a user instruction (S115). After shifting to the personal information provision mode, the mobile phone 21 constructs the wireless network 30 (S116). After that, it waits for a terminal connection.

  Here, the digital camera 10 shifts to the image transmission mode based on a user instruction or the like (S117). After shifting to the image transmission mode, the digital camera 10 performs connection processing to the wireless network 30 (S118).

  Further, the mobile phone 22 shifts to the image reception mode based on a user instruction or the like (S119). After shifting to the image reception mode, the cellular phone 22 also performs connection processing to the wireless network 30 (S120). After the connection process, the mobile phone 22 waits to receive image data.

  Here, the digital camera 10 transmits a state confirmation request to the mobile phone 21 in order to confirm whether or not the personal information providing source terminal is in the personal information providing mode (S121). The mobile phone 21 transmits a state confirmation response to the digital camera 10 as a response to the request (S122). This response includes information indicating whether or not the mode is shifted to the personal information provision mode (in this case, the mode is shifted to the personal information provision mode). Thereby, the digital camera 10 recognizes that the mobile phone 21 is shifting to the personal information providing mode.

  Furthermore, the mobile phone 21 transmits the destination information to the digital camera 10. That is, information indicating the personal information provider (mobile phone 22) is transmitted (S123). In this embodiment, identification information (such as a MAC address) of the mobile phone 22 is transmitted as destination information.

  Here, the digital camera 10 adds personal information to the image and transmits it to the mobile phone 22. In the digital camera 10, if the mobile phone 21 is not in the personal information provision mode, for example, an image without personal information is transmitted to the mobile phone 22.

  The mobile phone 22 that has received the image to which the personal information is added performs a registration process for the personal information (S125). In the registration process, for example, registration of the telephone number, name, and mail address of the user who owns the mobile phone 21 is performed.

  Next, a flowchart showing a flow of processing in each terminal shown in FIG. 1 will be described with reference to FIGS.

  First, an example of the processing flow of the digital camera 10 in the personal information provision registration mode will be described with reference to FIG. That is, the flow of processing when registering identification information and personal information of the mobile phone 21 in the digital camera 10 will be described.

  The digital camera 10 registers a personal information provider terminal (mobile phone 21). In this registration, the user instructs the digital camera 10 to shift to the personal information provision registration mode via the input unit 49 (YES in S201). This instruction is performed, for example, when the user selects an item such as “Register personal information provider terminal” from the menu.

  The digital camera 10 shifts to the personal information provision registration mode (S202), and the wireless LAN communication control unit 71 determines whether or not the communication parameters of the wireless network 30 have been set. This determination is performed based on, for example, whether or not the wireless network communication parameters have been set in the storage unit 47 of the digital camera 10.

  If the communication parameter has not been set (NO in 203), the digital camera 10 performs the setting process of the wireless network 30 in the wireless LAN communication control unit 71 (S204). This setting process may be performed based on user input after prompting the user to input communication parameters, or may be performed using a communication parameter simple setting technique or the like. Note that communication parameters of a dedicated (for personal information provision registration mode) wireless network may be set in advance at the time of factory shipment. In that case, the processing of S203 and S204 is omitted.

  When the communication parameter has been set (YES in S203) or the communication parameter is set in the process of S204, the digital camera 10 searches the wireless network 30 in the wireless LAN communication control unit 71 (S205). For example, the wireless network 30 is searched using a network identifier (SSID: Service Set IDentifier).

  If the wireless network 30 is found as a result of the search (YES in S206), the digital camera 10 performs a connection process to the wireless network 30 in the wireless LAN communication control unit 71 (S207). Here, it is assumed that the wireless network 30 subjected to the connection process is a network constructed by a personal information providing source terminal (mobile phone 21).

  In this connection process, the digital camera 10 performs an authentication process with the terminal (cell phone 21) of the wireless network construction source in order to confirm whether or not the terminal confirmation unit 80 is a legitimate terminal. The authentication process is performed using, for example, a PIN code or a password. Further, the authentication process may be performed by determining a terminal connected within a certain period of time as a valid terminal. In this process, any method may be used as long as the validity of the terminal can be confirmed.

  When the connection processing to the wireless network 30 is completed, the digital camera 10 performs personal information registration processing in the personal information registration unit 74. Specifically, the identification information (for example, MAC address) of the personal information provider terminal (mobile phone 21) is received, and the identification information is registered in the storage unit 47 (S208).

  Here, the digital camera 10 waits to receive personal information from the personal information provider terminal (mobile phone 21). When the personal information is received (YES in S209), the digital camera 10 causes the personal information registration unit 74 to associate the received personal information with the identification information of the personal information providing source terminal and store it in the storage unit 47 (S210). ).

  After storing the personal information, the digital camera 10 performs a disconnection process from the wireless network 30 in the wireless LAN communication control unit 71 (S211), and then ends the personal information provision registration mode (S212).

  Next, an example of the processing flow of the mobile phone 21 in the personal information provision registration mode will be described with reference to FIG. That is, the flow of processing when registering identification information of the digital camera 10 in the mobile phone 21 will be described.

  The mobile phone 21 registers a personal information providing terminal (digital camera 10). In this registration, the user instructs the mobile phone 21 to shift to the personal information provision registration mode via the input unit 54 (YES in S301). This instruction is performed, for example, when the user selects an item such as “registration of personal information providing terminal” from the menu.

  The mobile phone 21 shifts to the personal information provision registration mode (S302), and the wireless LAN communication control unit 81 constructs the wireless network 30 (S303). This wireless network may be constructed as a dedicated wireless network (for personal information provision registration mode). Specifically, a network may be constructed using a network identifier (SSID) for personal information provision registration mode. In the wireless network, communication is performed using an encryption key / encryption method for the personal information provision registration mode.

  After construction of the wireless network 30, the mobile phone 21 waits for connection with another terminal (S304). Here, if there is a connection request from the digital camera 10 (YES in S304), the mobile phone 21 authenticates with the digital camera 10 in order to confirm whether or not the terminal confirmation unit 91 is a valid terminal. Processing is performed (S305). As described above, the authentication process is performed using, for example, a PIN code or a password.

  As a result of authentication, if it is determined that the terminal is not a legitimate terminal (NO in S306), the mobile phone 21 terminates the construction of the wireless network 30 in the wireless LAN communication control unit 81 (S309) and sets the personal information provision registration mode. The process ends (S310). On the other hand, when it is determined that the terminal is a legitimate terminal (YES in S306), the mobile phone 21 uses the provision destination registration unit 85 to obtain identification information (for example, MAC address) of the personal information provision destination terminal (digital camera 10). The identification information is received and registered in the storage unit 60.

  When the registration process is completed, the mobile phone 21 transmits personal information to the digital camera 10 in the personal information providing unit 86 (S308). After transmitting the personal information, the mobile phone 21 ends the construction of the wireless network 30 in the wireless LAN communication control unit 81 (S309) and ends the personal information provision registration mode (S310).

  Next, an example of the processing flow of the mobile phone 21 in the destination information registration mode will be described with reference to FIG. That is, the flow of processing when registering a destination terminal (transmission destination terminal) of an image with personal information added thereto in the mobile phone 21 will be described.

  The mobile phone 21 registers an image destination terminal (mobile phone 22). In this registration, the user instructs the mobile phone 21 to shift to the destination information registration mode via the input unit 54 (YES in S401). This instruction is performed, for example, by the user selecting an item such as “Register destination of personal information added image” from the menu.

  The mobile phone 21 shifts to the destination information registration mode (S402), and activates short-range wireless communication (such as the short-range wireless antenna 62a) in the short-range wireless communication control unit 83 (S403). Then, it waits for connection from another terminal (in this case, the mobile phone 22) (NO in S404). Here, the user brings the short-range wireless antenna 62a in the mobile phone 21 and the mobile phone 22 closer. Thereby, both terminals are connected to the short-range wireless network.

  When the connection of another terminal (mobile phone 22) is detected in this way (YES in S404), the mobile phone 21 performs destination information registration processing in the destination information registration unit 87 (S405). Specifically, the MAC address of the wireless LAN interface (wireless LAN communication processing unit 58) is received as identification information of the mobile phone 22. Also, the MAC address of the wireless LAN interface (wireless LAN communication processing unit 58) is transmitted to the mobile phone 22 as identification information of the own terminal (mobile phone 21). That is, identification information is exchanged with each other.

  Thereafter, the cellular phone 21 stores the received identification information of the cellular phone 22 in the storage unit 60 in the destination information registration unit 87 (S406). Thereafter, the cellular phone 21 ends the short-range wireless communication in the short-range wireless communication control unit 83 (S407) and ends the destination information registration mode (S408).

  Next, an example of the processing flow of the mobile phone 22 in the destination information registration mode will be described with reference to FIG. That is, the flow of processing when registering the image transmission source terminal (mobile phone 21) to which personal information is added in the mobile phone 22 will be described.

  The mobile phone 22 registers an image transmission source terminal (mobile phone 21). In this registration, the user instructs the mobile phone 22 to shift to the destination information registration mode via the input unit 54 (YES in S501). This instruction is performed, for example, when the user selects an item such as “registration reception of personal information added image” from the menu.

  After that, the mobile phone 22 shifts to the destination information registration mode and performs destination information registration processing and the like (S502 to S505) in the same manner as the mobile phone 21 described with reference to FIG. In this destination information registration process, the mobile phone 22 receives the communication parameters of the wireless network 30 constructed by the mobile phone 21 in addition to the destination information, and stores them in the storage unit 60 (S506, S507). . Thereafter, the mobile phone 22 ends the short distance wireless communication and ends the destination information registration mode (S508, S509).

  10 and 11, the case where near field communication is used at the time of destination information registration processing has been described, but it is not always necessary to use near field communication. That is, any communication may be used as long as each terminal can be reliably identified.

  Next, an example of the processing flow of the digital camera 10 in the image transmission mode will be described with reference to FIG. That is, the flow of processing when the digital camera 10 transmits an image with personal information added to the mobile phone 22 will be described.

  The digital camera 10 transmits an image added with personal information to the mobile phone 22 via the wireless network 30. In this process, the user instructs the mobile phone 22 to shift to the image transmission mode via the input unit 54 (YES in S601). This instruction is performed, for example, when the user selects an item such as “Send image” from the menu.

  The digital camera 10 shifts to the image transmission mode (S602) and searches the wireless network 30 in the wireless LAN communication control unit 71 (S603). More specifically, the wireless network 30 constructed by the mobile phone 21 is searched. Here, when the wireless network 30 is found (YES in S604), the digital camera 10 performs connection processing to the wireless network 30 in the wireless LAN communication control unit 71 (S605).

  When the connection process is completed, the digital camera 10 determines whether or not the personal information providing source terminal (mobile phone 21) exists in the wireless network in the determination unit 77. This determination is performed using the identification information acquired in the process shown in S208 of FIG. If there is no personal information provider terminal (mobile phone 21) (NO in S606), the digital camera 10 transmits an image in the image transmission unit 78 (S612), and then ends the image transmission mode (S613). ). On the other hand, if it exists (YES in S606), the digital camera 10 transmits a state confirmation request to the terminal in order to confirm the state of the personal information providing source terminal in the transmission unit 76 (S607). As described above, the status confirmation request is transmitted to confirm whether or not the personal information providing source terminal is in the personal information provision mode.

  When the state confirmation response is received (YES in S608), the digital camera 10 analyzes the state confirmation response message in the determination unit 77. Then, it is determined whether or not the personal information provider terminal (mobile phone 21) is shifting to the personal information provision mode. That is, the digital camera 10 determines whether or not the mobile phone 21 is in a mode state in which transmission of personal information is permitted.

  As a result of the determination, if the personal information provision mode is not set (NO in S609), the digital camera 10 transmits the image in the image transmission unit 78 (S612), and then ends the image transmission mode (S613). On the other hand, in the personal information provision mode (YES in S609), the digital camera 10 waits for receiving destination information. In the present embodiment, identification information (such as a MAC address) of the mobile phone 22 is received as destination information.

  When receiving the destination information (YES in S610), the digital camera 10 adds the personal information to the image in the personal information adding unit 79 (S611), and then becomes the destination indicated by the destination information in the image transmitting unit 78. The image is transmitted to the terminal (S612). Thereafter, the digital camera 10 ends the image transmission mode (S613).

  Note that the processing in the digital camera 10 described above is merely an example, and can be changed as appropriate. For example, after receiving the destination information in the process of S610, the determination unit 77 may determine whether the terminal serving as the destination exists in the wireless network connected in the process of S605. In this case, if there is no corresponding terminal, the image transmission process may be terminated, or the image may be transmitted without adding personal information.

  Further, it is not always necessary to determine whether or not the personal information providing source terminal is in the personal information providing mode in S609. That is, in the process of S606, when it is determined that there is a personal information providing source terminal, the process may proceed to S610 without performing the processes of S607 to S609.

  Next, an example of the processing flow of the mobile phone 21 in the personal information provision mode will be described with reference to FIG. That is, the flow of processing when the mobile phone 21 transmits an image with personal information added from the digital camera 10 to the mobile phone 22 will be described.

  The mobile phone 21 performs processing for transmitting an image with personal information added from the digital camera 10 to the mobile phone 22 via the wireless network 30. In this process, the user instructs the mobile phone 21 to shift to the personal information providing mode via the input unit 54 (YES in S701). This instruction is performed, for example, when the user selects an item such as “permit provision of personal information” from the menu. Note that the mobile phone 21 may automatically shift to the personal information provision mode after completion of the destination information registration process without any user operation.

  The mobile phone 21 shifts to the personal information provision mode (S702), and the wireless LAN communication control unit 81 constructs the wireless network 30 (S703). After constructing the wireless network 30, the mobile phone 21 waits for a terminal connection (NO in S704).

  When the connection of the terminal is detected (YES in S704), the mobile phone 21 is already registered in the connection terminal determination unit 89 as the personal information providing destination terminal (mobile phone 22) or the destination terminal (digital camera 10). It is determined whether or not.

  If it is not registered as any terminal (NO in S705), the mobile phone 21 forcibly performs a disconnection process on the connected terminal in the wireless LAN communication control unit 81 (S706). The process returns to S704 again. On the other hand, if registered as one of the terminals (YES in S705), the mobile phone 21 determines in the connection terminal determination unit 89 whether or not the connected terminal is a personal information providing destination terminal. Do. That is, it is determined whether or not the digital camera 10 is used. This determination is performed using the identification information acquired in the process of S307 in FIG.

  As a result of the determination, if it is not the personal information providing destination terminal (NO in S707), the mobile phone 21 proceeds to the process of S711. On the other hand, if it is a personal information providing destination terminal (YES in S707), the mobile phone 21 waits until a status confirmation request is sent from the terminal (NO in S708). When a status confirmation request is sent (YES in S708), the mobile phone 21 transmits a status confirmation response in response to the status notification unit 90 (S709). At this time, the mobile phone 21 transmits information indicating whether or not the mode is shifted to the personal information providing mode in the state confirmation response.

  After transmitting the status confirmation response, the mobile phone 21 transmits the destination information in the destination information providing unit 88. In this embodiment, identification information (such as a MAC address) of the mobile phone 22 is transmitted as destination information.

  Thereafter, the mobile phone 21 determines in the wireless LAN communication control unit 81 whether there is a terminal connected to the wireless network 30 constructed in the process of S703. If there is no connected terminal (NO in S711), the construction of the wireless network 30 is terminated (S712). The termination of the wireless network is not limited to this timing, and the wireless network 30 may be terminated when a timer exceeds a specified time using a timer or the like. After completing the construction of the wireless network 30, the mobile phone 21 ends the personal information provision mode (S713).

  Note that the processing in the mobile phone 21 described above is merely an example and can be changed as appropriate. For example, the mobile phone 21 may be able to select destination information to be provided. In this case, if there are a plurality of destination terminals, the user operates the mobile phone 21 to select the destination of the image to which the personal information is added. Thereby, only the selected destination information is transmitted to the digital camera 10 as the destination information.

  Next, an example of the processing flow of the mobile phone 22 in the image reception mode will be described with reference to FIG. That is, the flow of processing when the mobile phone 22 receives an image with personal information added from the digital camera 10 will be described.

  The mobile phone 22 receives an image added with personal information from the digital camera 10 via the wireless network 30. In this process, the user instructs the mobile phone 22 to shift to the image reception mode via the input unit 54 (YES in S801). This instruction is performed, for example, when the user selects an item such as “receive image” from the menu.

  The mobile phone 22 shifts to the image reception mode (S802) and searches the wireless network 30 in the wireless LAN communication control unit 81 (S803). More specifically, the wireless network 30 constructed by the mobile phone 21 is searched. When the wireless network 30 is found (YES in S804), the mobile phone 22 performs a connection process to the wireless network 30 in the wireless LAN communication control unit 81 (S805).

  When the connection process is completed, the mobile phone 22 waits for image reception (NO in S806). Here, when the mobile phone 22 receives the image at the image receiving unit 93 (YES in S806), the additional information determining unit 94 determines whether or not personal information is added to the image.

  If personal information is not added as a result of the determination (NO in S807), the cellular phone 22 ends the image reception mode (S809). On the other hand, if personal information has been added (YES in S807), the mobile phone 22 performs personal information registration processing in the personal information registration unit 92. Specifically, the telephone number, name, e-mail address, etc. of the user possessing the personal information provider terminal (mobile phone 21) is registered (S808). Thereafter, the mobile phone 22 ends the image reception mode (S809).

  Note that the processing in the mobile phone 22 described above is merely an example and can be changed as appropriate. For example, in the mobile phone 22, it may be determined whether or not an image transmission source terminal (mobile phone 21) exists in the wireless network when the wireless network is connected. In that case, the mobile phone 21 may be identified using the identification information (MAC address or the like) of the mobile phone 21 acquired at the time of registration of the destination information (see S505 in FIG. 11). If the mobile phone 21 exists, it can be determined that personal information is added to an image received from the mobile phone 21 via the digital camera 10.

  As described above, according to the present embodiment, a secure communication network (predetermined network) in which a destination is guaranteed when an image to which personal information of a user carrying the mobile phone 21 is added is transmitted from the digital camera 10. ). For this reason, security can be improved when personal information is added to an image and transmitted to another terminal.

  The above is an example of a typical embodiment of the present invention, but the present invention is not limited to the embodiment described above and shown in the drawings, and can be appropriately modified and implemented within the scope not changing the gist thereof. .

  For example, in the above description, the case where personal information is transmitted from the mobile phone 21 to the digital camera 10 in the personal information provision registration mode has been described, but the present invention is not limited thereto. For example, the personal information may be transmitted in the personal information provision mode. In this case, the personal information may be transmitted simultaneously with the destination information, or may be transmitted when the digital camera 10 registered as the personal information providing destination terminal is connected to the wireless network 30.

  Further, the mobile phone 21 may construct a dedicated wireless network (for transmitting personal information) for transmitting an image with personal information added thereto. In that case, the communication parameter of the dedicated wireless network is provided from the mobile phone 21 to the digital camera 10 during the registration process of personal information performed between the digital camera 10 and the mobile phone 21. Further, the communication parameter of the dedicated wireless network is provided from the mobile phone 21 to the mobile phone 22 at the time of registration processing of the destination information between the mobile phone 21 and the mobile phone 22. When a dedicated wireless network is constructed in this way, the risk of information leakage can be further reduced. Furthermore, when a dedicated wireless network is constructed, it is not necessary to confirm whether or not the mobile phone 21 is in the personal information provision mode (S607 to S609 shown in FIG. 12).

  Moreover, although the case where each terminal is connected to the wireless network 30 in the ad hoc format has been described in the above description, the present invention is not limited to this. For example, the mobile phone 21, the mobile phone 22, or another base station may construct a wireless LAN infrastructure type wireless network. That is, as long as each terminal can communicate via a wireless network, the connection format is not particularly limited.

  In the above description, the case where an image to which personal information is added is transmitted to the mobile phone 22 is described. However, the present invention is not limited to this. Any terminal can be used as long as it can confirm the legitimacy as a destination. For example, a destination WEB server or the like may be used. In that case, the mobile phone 21 connects to the Internet via a public communication network and confirms the validity of the WEB server. The validity can be confirmed using, for example, authentication based on a user ID or password, URL information, IP address information, or the like. Even in such a case, the risk of leakage of personal information can be reduced.

  In the above description, the description on how to select one or a plurality of images held in the digital camera 10 and add personal information is omitted, but the image selection method is not limited. For example, when there are a plurality of sheets, the user of the digital camera 10 may select them. In the digital camera 10, the latest image may be automatically selected. Furthermore, the mobile phone 21 may display an image stored in the digital camera 10 and allow the user to select it. In this case, information specifying the image is notified from the mobile phone 21 to the digital camera 10 via the wireless network 30. In addition, an image captured during connection to the wireless network 30 may be selected. Note that a plurality of images may be transmitted simultaneously.

  In the above description, the case where an image to which personal information is added is transmitted to one mobile phone 22 is described. However, the present invention is not limited to this. For example, when there are a plurality of destination terminals, images with personal information added or personal information not added may be simultaneously transmitted to the plurality of destination terminals.

  In the above description, which information (for example, only a telephone number is selected, etc.) to be added to an image among a plurality of types of information (for example, a telephone number, name, and email address) included in personal information. However, the method for selecting this information is not particularly limited. For example, the user of the mobile phone 21 or the digital camera 10 may select, or may be automatically specified by any one of the terminals.

  In the above description, the case where personal information is transmitted using an IEEE 802.11-compliant wireless LAN (wireless network) is described as an example, but the present invention is not limited thereto. For example, other wireless media such as wireless USB, MBOA, Bluetooth (registered trademark), UWB, and ZigBee may be used. Furthermore, a communication medium using a wired line such as a wired LAN may be used. Note that MBOA (Multi Band OFDM Alliance) and UWB (Ultra Wide Band) include wireless USB, wireless 1394, WINET, and the like.

(Other embodiments)
The present invention is also realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program. It is a process to be executed.

Claims (10)

A communication device that functions as a first communication device that transmits image data to another communication device,
Storage means for storing image data;
Adding means for adding additional information provided by the second communication device to the image data stored by the storage means;
When transmitting the image data stored by the storage means to a third communication device via a predetermined network, depending on whether or not the second communication device is connected to the predetermined network, And a transmission unit that transmits image data to which the additional information is added by the adding unit or image data to which the additional information is not added by the adding unit. The transmission means includes
The communication apparatus according to claim 1, wherein the image data is transmitted to the third communication apparatus specified by destination information transmitted from the second communication apparatus via the predetermined network. . The transmission means includes
The image data to which the additional information is added by the adding means is transmitted to the third communication device when the second communication device is connected to the predetermined network. 2. The communication device according to 2. The transmission means includes
The image data to which the additional information is not added by the adding unit is transmitted to the third communication device when the second communication device is not connected to the predetermined network. 4. The communication device according to any one of items 1 to 3. The additional information includes a plurality of types of information,
When transmitting an image with the additional information added, transmitting image data with the type of information designated by the second communication device among the plurality of types of information included in the additional information. The communication apparatus according to claim 1, wherein the communication apparatus is characterized. The transmission means includes
When the second communication device is connected to the predetermined network and the mode is a mode in which transmission of the additional information is permitted, the image data to which the additional information is added by the adding unit is transmitted to the third network. It transmits to a communication apparatus. The communication apparatus of any one of Claim 1 to 5 characterized by the above-mentioned. The transmission means includes
When the communication parameter notified in advance by the second communication device is used to connect to the predetermined network, the image data added with the additional information by the adding means is transmitted to the third communication device. The communication apparatus according to claim 1.   A communication system comprising the communication device according to claim 1, the second communication device, and the third communication device. A control method for a communication device having a storage means for storing image data and functioning as a first communication device for transmitting image data to another communication device,
An adding step of adding additional information provided by the second communication device to the image data stored by the storage unit;
When transmitting the image data stored by the storage means to a third communication device via a predetermined network, depending on whether or not the second communication device is connected to the predetermined network, And a transmitting step of transmitting image data to which the additional information is added in the adding step or image data to which the additional information is not added in the adding step.   The program for operating a computer as a communication apparatus of any one of Claim 1 to 7.

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