JP2016123045A - Information processing unit and control method therefor, computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for reducing the latency time until starting a service, when starting communication by other wireless communication system while being triggered by communication of certain wireless communication system.SOLUTION: An information processing unit acquires the identification information of object data by wireless communication of first communication system, from other information processing unit holding object data, starts connection of wireless communication by second communication system with other information processing unit, depending on the connection with other information processing unit by first communication system, determines whether or not the object data corresponding to the identification information can be acquired by other technique not using the second communication system, different from the technique for acquiring the object data from other information processing unit by second communication system, and acquires the object data by other technique, when a determination is made that the object data can be acquired by other technique before wireless communication by second communication system is enabled.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an information processing apparatus, a control method therefor, and a computer program, and more particularly to a technique for switching a communication method between devices capable of wireless communication using a plurality of communication methods.

  In recent years, near field communication such as NFC (Near Field Communication), IrDA (Infrared Data Association), and TransferJet (registered trademark) has begun to be used in mobile phones and the like. A user can transmit and receive data such as image data and addresses between mobile phones only by performing an operation of bringing mobile phones close to each other (Patent Document 1).

  There is also a technique for performing handover from NFC to a different wireless communication method such as wireless LAN communication or Bluetooth (registered trademark). By realizing a handover using NFC, it is possible to establish a high-speed communication path for Wi-Fi or Bluetooth (registered trademark) by simply bringing two mobile phones close to each other and transmit / receive large-capacity data (Patent Literature) 2, Patent Document 3).

JP 2007-221355 A JP 2009-207069 A JP 2011-182449 A

  When two devices are connected by a wireless LAN and perform IP (Internet Protocol) communication on the network, it takes about several seconds from the start of wireless connection to the completion of IP address assignment. Similarly, when implementing a service for performing large-capacity data communication on a wireless LAN using the NFC handover described above, there is a waiting time until the service is actually started after the devices are brought close to each other. For example, when an NFC connection between a mobile phone and a camera is used as a trigger to acquire captured images in the camera over a wireless LAN and display them in a list on the mobile phone, the user displays a list of the captured images after bringing the devices closer together. It is necessary to wait for several seconds until

  The present invention has been made in view of this problem, and provides a technique for reducing a waiting time until a service is started when communication by another wireless communication method is started using communication by a certain wireless communication method as a trigger. For the purpose.

In order to achieve the above object, an information processing apparatus according to the present invention comprises the following arrangement. That is,
An information processing apparatus that performs wireless communication using a first communication method and a second communication method,
First communication means for acquiring identification information of the object data from another information processing apparatus holding object data by wireless communication of the first communication method;
A second communication means for starting a wireless communication connection with the other information processing apparatus according to the second communication method in response to the connection with the other information processing apparatus according to the first communication method;
The object data corresponding to the identification information is acquired by another method that does not use the second communication method, which is different from the method of acquiring object data from the other information processing apparatus by wireless communication of the second communication method. Determining means for determining whether or not
An acquisition means for acquiring the object data by the other method when it is determined that the object data can be acquired by the other method before wireless communication of the second communication method is enabled; Is provided.

  ADVANTAGE OF THE INVENTION According to this invention, when starting the communication by another wireless communication system by using the communication by a certain wireless communication system as a trigger, the technique which reduces waiting time until a service is started can be provided.

1 is a system configuration diagram showing a configuration of a communication system. It is a block diagram which shows the function structure of a mobile telephone. It is a sequence chart which shows the processing sequence of an information processing system. It is a flowchart which shows the process sequence of the process which a mobile telephone performs.

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

(Communications system)
FIG. 1 is a system configuration diagram showing the configuration of the communication system of the present embodiment. 101 is a mobile phone, 102 is a digital camera, and 103 is an external server (server device). The external server 103 is arranged on the Internet and provides an image upload service and an image browsing service. The image upload service is a service for uploading image data to the external server 103 via the Internet. The image browsing service is a service for accessing the external server 103 via the Internet and acquiring uploaded image data. Examples of such services include YouTube and CIG (Canon Image Gate). Reference numeral 104 denotes a touch panel of the mobile phone 101, and reference numeral 105 denotes a touch panel of the digital camera 102. The touch panels 104 and 105 can perform screen display for the user and accept operation by the user. The mobile phone 101 and the digital camera 102 each have a computer (CPU: central processing unit) that controls the apparatus and a memory that stores a program executed by the computer.

  Reference numeral 106 denotes close proximity wireless communication as the first communication method. By bringing the mobile phone 101 and the digital camera 102 close to each other, peer-to-peer communication can be performed via the proximity wireless communication 106. Proximity wireless communication 106 includes contactless IC card wireless communication using electromagnetic induction, NFC (Near Field Communication), communication using an induction electric field, etc., with a maximum communication speed of several hundred kbps and a communication range of several centimeters. Within meters. The close proximity wireless communication 106 performs wireless communication complying with the NFC standard. However, for example, it is possible to perform communication using other close proximity wireless communication such as infrared communication (IrDA) or Transfer Jet, or other wireless communication methods. Anyway. Further, the close proximity wireless communication 106 may use a Bluetooth Low Energy (BLE) system defined by Bluetooth 4.0. The close proximity wireless communication 106 may use a communication method with a short communication distance or a slower communication speed than a communication method used by the short distance wireless communication 107 described later.

  Reference numeral 107 denotes short-range wireless communication as the second communication method. The short-range wireless communication 107 can perform direct wireless communication between the mobile phone 101 and the digital camera 102 or wireless communication via a relay device such as an AP (Access Point). The short-range wireless communication 107 includes communication using a wireless LAN conforming to the IEEE802.11 series or Bluetooth (registered trademark), and the communication speed is a maximum of several hundreds Mbps, and the communicable range is within several tens of meters. When communication by the short-range wireless communication 107 is started, encryption and authentication are performed by setting wireless parameters including information such as an encryption method, an encryption key, an authentication method, and an authentication key, and communication can be performed safely. Specific examples include WPA (Wi-Fi Protected Access) standardized by the Wi-Fi Alliance. It should be noted that encryption / authentication may be performed by other methods, or encryption / authentication may not be performed depending on the application / use situation. By the short distance wireless communication 106 and the short distance wireless communication 107, when the distance to the communication partner apparatus is within a predetermined range, a one-to-one wireless link can be established and data communication can be performed.

  Reference numeral 108 denotes public wireless communication as a third communication method, which is wireless communication for the mobile phone 101 to connect to the external server 103 via the Internet. The public wireless communication 108 may be any communication method as long as it is wireless communication that enables Internet access. Typical examples include 3G mobile phone networks, Wi-Fi hot spots, and communication using home wireless LAN.

  In the above-described configuration, a case will be described in which image data is transmitted from the digital camera 102 to the mobile phone 101 via the short-range wireless communication 107 using the proximity wireless communication 106 as a trigger. In this embodiment, it is determined whether a thumbnail image or the like of image data to be transmitted is stored in the mobile phone 101 according to the connection by the close proximity wireless communication 106, and when stored, the thumbnail image is displayed on the touch panel 104. To be selectable. For this reason, even when it takes time to start communication by the short-range wireless communication 107, it is possible to reduce the waiting time until the service is started after the devices are brought close to each other.

  In the present embodiment, an example in which the mobile phone 101 and the digital camera 102 are used as an information processing apparatus that performs wireless communication will be described, but the type of device is not limited thereto. For example, any information processing apparatus capable of wireless communication, such as a personal computer (PC), a tablet terminal, or a smartphone, can be used.

(mobile phone)
FIG. 2 is a block diagram showing a functional configuration of the mobile phone 101. Each component in FIG. 2 is realized by a computer (CPU) of the mobile phone 101 executing a computer program. However, all or part of the components of the mobile phone 101 may be realized by dedicated hardware (semiconductor circuit or the like).

  A proximity wireless communication unit 201 performs the above-described proximity wireless communication 106. The proximity wireless communication unit 201 automatically establishes the proximity wireless communication 106 when detecting a device that can communicate within the communication range. The proximity wireless communication unit 201 obtains identification information of the object data from another information processing apparatus (the digital camera 102 in the present embodiment) that holds the object data by proximity wireless communication as the first communication method. It functions as a communication means. As will be described later, in this embodiment, an example in which image attached information such as a thumbnail image is acquired as object data will be described, but the object data may be any kind of data and is not limited to image attached information. For example, the object data may be moving image data or text data.

  A short-range wireless communication unit 202 performs the short-range wireless communication 107 described above. The short-range wireless communication unit 202 establishes a short-range wireless connection with this device by designating a communicable device existing within the communication range or by being designated from a communicable device. The short-range wireless communication unit 202 starts a short-range wireless communication connection as the second communication method with the other information processing apparatus in response to the connection with the other information processing apparatus through the proximity wireless communication. It functions as a second communication means.

  A public wireless communication unit 203 performs the public wireless communication 108 described above. When the public wireless communication unit 203 detects that its own device is within the public wireless communication range, it automatically establishes the public wireless communication 108. The public wireless communication unit 203 functions as a third communication unit that performs public wireless communication as a third communication method. Reference numeral 204 denotes a message transmission / reception unit that transmits / receives a message to / from a partner apparatus via the proximity wireless communication 106.

  Reference numeral 205 denotes a message generation unit that generates a message to be transmitted to the counterpart apparatus by the message transmission / reception unit 204. The message generated by the message generation unit 205 includes two types of messages: a handover request message for requesting the partner apparatus to start handover, and an image ID request message for requesting transmission of image attached information held by the partner apparatus. Note that the message generation unit 205 may include the content of the image ID request message as an information element of the handover request message.

  Handover is a process of requesting the start of the short-range wireless communication 107 via the close-range wireless communication 106. When NFC is used as the close proximity wireless communication 106, an NFC Forum standard called NFC Connection Handover can be applied. In NFC Connection Handover, when communicating in the P2P mode of NFC, a handover request message and a handover response message are exchanged between both devices. On the other hand, when communicating in the reader / writer mode, a handover response message is read from the NFC tag, thereby handing over to another communication medium such as Wi-Fi or Bluetooth (registered trademark). In this embodiment, a case where a handover request message is transmitted is described as in the case of the P2P mode. However, handover may be performed by receiving a handover response message as in the case of the reader / writer mode. When Wi-Fi is used as the short-range wireless communication 107, it conforms to WSC (Wi-Fi Simple Configuration) Out-of-Band Interface specifications standardized by the Wi-Fi Alliance.

  The image ID is information for identifying the image data, and is information included in the image attached information as the object data of the present embodiment. The image ancillary information is metadata of image data, and includes information such as shooting date / time, thumbnail image data (compressed image data for list display use), and image ID. In addition, when the image data and the image attached information are stored in the external server 103, a URL (Uniform Resource Locator) indicating the storage location may be included. Further, the URL may be included in the information acquired from the counterpart device by the image ID request message. Such a URL functions as information for identifying a server device that holds object data. Note that the image ancillary information may include recordable metadata defined by EXIF (Exchangeable Image File Format) as information other than the above.

  Reference numeral 206 denotes a storage unit that stores image data and image attached information. The type of information that can be recorded in the storage unit 206 is not particularly limited. A handover control unit 207 executes the above-described handover process.

  Reference numeral 208 denotes an image ID determination unit that determines whether or not the image attached information that is newly received from the counterpart apparatus has been stored in the storage unit 206. Specifically, the storage unit obtains the image ID of the image data scheduled to be received from the counterpart apparatus via the proximity wireless communication 106 and compares it with the image ID of the image attached information stored in the storage unit 206. Whether or not it is stored in 206 is determined.

  In this embodiment, the image ID determination unit 208 acquires the image IDs of all the image data held by the counterpart device as a list and compares the image IDs with the image attached information of the storage unit 206 for each image ID. You may use the method of. For example, only the image ID of the newly captured image data may be acquired from the counterpart device and compared with the image attached information in the storage unit 206. Also, the date and time when the close proximity wireless communication 106 was previously started is stored with the counterpart device, and when the communication is newly started, only the image ID of the image data generated (or acquired) after the stored date and time is received. You may acquire from an apparatus. Alternatively, flag information indicating untransferred / transferred may be held as image ancillary information, and when close proximity wireless communication 106 is started, it may be determined whether or not the information has been stored by checking this flag.

  In the present embodiment, all the image attached information recorded in the storage unit 206 is set as a comparison target. However, the image attached information to be compared may be narrowed down by some method. For example, a device ID (device identification information) for identifying the counterpart device is stored in association with the image attachment information, and only the image attachment information associated with the device ID acquired through the proximity wireless communication 106 is used as a comparison target. Also good. In the present embodiment, all the image IDs acquired from the counterpart device are searched from the storage unit 206. However, the search target image IDs may be narrowed down using some method. For example, image IDs corresponding to the upper limit number of image attached information that can be displayed on the touch panel 104 may be searched. In this embodiment, when the close proximity wireless communication 106 is started, the image ID comparison / determination process is always performed. However, whether or not the image ID comparison / determination process is performed depending on whether there is a connection history with the counterpart apparatus. May be switched. In this way, it is determined whether or not the object data such as the thumbnail image corresponding to the image identification information and the device identification information can be obtained as a substitute, and the object data is determined according to the result of the decision by the substitute acquisition method. Can be obtained. Thereby, it is possible to effectively narrow down object data to be searched, and display a list of object data at high speed and appropriately.

  Reference numeral 209 denotes an acquisition method determination unit that determines an acquisition method of image attached information. The acquisition method determination unit 209 determines whether the image attached information can be acquired via the close proximity wireless communication 106 or the public wireless communication 108 before the handover process by the handover control unit 207 is completed. Specifically, when NFC is used for the close proximity wireless communication 106, it is determined that acquisition is possible if the partner apparatus can communicate in the P2P mode of NFC, and it is determined that acquisition is not possible if communication is not possible in the P2P mode. . Further, even when the partner apparatus is an NFC tag, if unstored image attached information is present in the memory area of the NFC tag, it is determined that acquisition is possible. In this embodiment, whether or not the image attached information can be acquired is determined, but whether or not image data or thumbnail image data can be acquired may be determined.

As described above, in the present embodiment, the image ID determination unit 208 and the acquisition method determination unit 209 acquire object data by another method different from the method of acquiring object data from other information processing apparatuses through short-range wireless communication. It is determined whether or not it can be performed. As will be described later, examples of other methods different from the method of acquiring object data without using the short-range wireless communication 107 include the following.
A method of reading out and acquiring object data corresponding to identification information from the storage unit 206 provided in the mobile phone 101.
A method of acquiring object data corresponding to identification information from an external server device by public wireless communication 108.
A method of acquiring object data corresponding to identification information from the digital camera 102 by the proximity wireless communication 106.
However, other methods that do not use the short-range wireless communication 107 are not limited to those described here, and any method that can acquire object data before wireless communication by the short-range wireless communication 107 is possible. Various techniques can also be used. As will be described later, when the object control data can be acquired by another method before the short-range wireless communication 107 becomes possible, the handover control unit 207 acquires the object data by the other method. Thereby, even when it takes time to connect the short-range wireless communication 107 such as a wireless LAN, the mobile phone 101 can acquire the object data corresponding to the image to be transmitted at high speed according to the proximity wireless communication. It is possible to display thumbnail images and the like at high speed. Therefore, even when handing over to a wireless communication medium that takes time to connect, it is possible to start a communication service at high speed without impairing the user experience.

  A touch panel control unit 210 controls the touch panel 104 of the mobile phone 101. The touch panel control unit 210 has functions of controlling screen display of the touch panel 104 and detecting operation of the touch panel 104 from the user.

(Processing sequence)
Hereinafter, the processing sequence of this embodiment will be described with reference to the sequence chart of FIG. The initial state is a state in which the mobile phone 101 and the digital camera 102 are disposed at a sufficiently long distance where communication by the close proximity wireless communication 106 cannot be performed, but wireless connection by the close proximity wireless communication unit 201 can be performed according to the close proximity. In addition, the mobile phone 101 is in a state where public wireless communication 108 is possible using the mobile phone network. In this state, when the user brings the distance between the mobile phone 101 and the digital camera 102 within a predetermined communication range, the proximity wireless communication 106 is started (F301). When the close proximity wireless communication 106 is established, the mobile phone 101 transmits a handover request message and an image ID request message to the digital camera 102 via the close proximity wireless communication 106. As a result, the wireless parameter information necessary for the connection of the short-range wireless communication 107 and the image ID held by the digital camera 102 are acquired (F302).

  The cellular phone 101 and the digital camera 102 start the handover process (F303). At this time, it is assumed that it takes several seconds until the short-range wireless communication 107 is started after the handover process is completed. Until the handover process is completed, image ancillary information corresponding to the acquired image ID is searched from the storage unit 206 in order to display a list of images held by the counterpart device (digital camera 102) on the touch panel 104 (F304). ). When a plurality of image IDs are acquired in the process of F302, a search is performed for all acquired image IDs.

  If there is an image ID that does not exist in the storage unit 206 as a result of the search, it is determined whether or not the image ancillary information of this image ID can be acquired via the proximity wireless communication 106 or the public wireless communication 108 (F305). When it is determined that the image can be acquired via the close proximity wireless communication 106, the image attached information corresponding to the image ID is acquired from the digital camera 102 using the close proximity wireless communication 106 and recorded in the storage unit 206 (F306). If it is determined that the image can be acquired via the public wireless communication 108, the image attached information corresponding to the image ID is acquired from the external server 103 using the public wireless communication 108 and recorded in the storage unit 206 (F307). As described above, the external server 103 is identified by a URL or the like.

  When the image attached information corresponding to all the image IDs is recorded in the storage unit 206, a list of image attached information is displayed on the touch panel 104 (F308). Thereafter, when the handover process is completed and the short-range wireless communication 107 is started (F309), the user can select an image from the list displayed on the touch panel 104. When an image is selected by the user, image data of the selected image is acquired from the digital camera 102 via the short-range wireless communication 107 (F310).

(Processing procedure)
Hereinafter, the operation of the present embodiment will be described with reference to FIG. FIG. 4 is an operation flowchart showing a processing procedure of processing executed by the mobile phone 101. Each step in FIG. 4 is executed by a CPU (not shown) of the mobile phone 101 by controlling operations based on a computer program. The initial state is a state where communication by the close proximity wireless transfer 106 is not started. When the proximity wireless communication unit 201 of the mobile phone 101 detects that the digital camera 102 exists within the communication range of the proximity wireless communication 106, the proximity wireless communication 106 is started (S401).

  Next, the message transmission / reception unit 204 transmits the handover request message and the image ID acquisition message generated by the message generation unit 205 to the digital camera 102 by the close proximity wireless communication unit 201 and receives a response from the digital camera 102 (S402). . The response from the digital camera 102 includes wireless parameter information necessary for starting the short-range wireless communication 107. In the present embodiment, the short-range wireless communication 107 is started using the wireless parameter. However, when the wireless parameter is not used, other information may be used. For example, when a wireless LAN is used as the short-range wireless communication 107, a network identifier can be included in such information. Further, the response from the digital camera 102 includes an image ID of image data stored in the digital camera 102. As described above, a plurality of image IDs may be used.

  Next, the handover control unit 207 starts connection of the near field communication 107 as a handover process (S403). Since the handover process takes about several seconds from the start to completion, it is performed in parallel in the background of the process of this flowchart.

  Next, the image ID determination unit 208 determines whether there is any image ancillary information corresponding to the image ID acquired in S402 that has not been recorded in the storage unit 206 (S404). This determination is performed by comparing the image ID acquired in S402 with the image ID of the image stored in the storage unit 206 and evaluating whether or not they match, but other information may be used for the evaluation. Good. For example, in S402, information on the update date and time of the image may be acquired in addition to the image ID. In S404, it may be determined that the image has been recorded when the image ID and the update date and time match. Thus, the latest thumbnail image can be acquired and displayed even when the image identified by the same image ID is updated. If it is determined that there is image attached information that is not recorded in the storage unit 206 (YES in S404), the process proceeds to S405. On the other hand, if it is determined that it does not exist, that is, all the image attached information is already stored in the storage unit 206 (NO in S404), the process proceeds to S408, and the image attached information is displayed in a list on the touch panel 104. .

  In step S <b> 405, the acquisition method determination unit 209 determines whether or not this image attached information can be acquired from the digital camera 102 via the short-range wireless communication 107. For example, the acquisition method determination unit 209 confirms whether or not the handover process started in S403 has been completed, and determines that the image attached information can be acquired via the short-range wireless communication 107 if it has been completed. . Further, when the handover process is not completed, it is determined that acquisition is impossible. When performing IP (Internet Protocol) communication with the digital camera 102 via the short-range wireless communication 107, it is determined whether or not the image attached information can be acquired depending on whether the IP address assignment has been completed. Also good.

  When it is determined that the image attachment information can be acquired via the short-range wireless communication 107 (YES in S405), the image attachment information is acquired from the digital camera 102 via the short-range wireless communication 107 (S406), and the storage unit This image attached information is stored in 206 (S407). Further, the image attached information corresponding to the image ID acquired in S403 is displayed as a list on the touch panel 104 (S408).

  On the other hand, if it is determined that the image attached information cannot be acquired via the short-range wireless communication 107 (NO in S405), the process proceeds to S409. In S409, the acquisition method determination unit 209 can acquire the image attachment information from the digital camera 102 via the proximity wireless communication 106, or can the image attachment information be acquired from the external server 103 via the public wireless communication 108. , Is determined. If it is determined that the image attachment information can be acquired using any of the above methods (YES in S409), the image attachment information is acquired using a method capable of acquiring the image attachment information (S406).

  The determination in S409 may be performed according to the amount of object data to be acquired. For example, when the data amount of the object data to be acquired is smaller than a predetermined value, it is determined that the object data can be acquired via the proximity wireless communication 106, and when it is larger than the predetermined value, the object data is acquired via the proximity wireless communication 106 Not determined as possible. The determination in S409 may be performed according to the data type of the object data to be acquired. For example, when the type of object data to be acquired is text data, it is determined that the object data can be acquired via the proximity wireless communication 106. If the type of object data to be acquired is image data or moving image data, it is not determined that the object data can be acquired via the proximity wireless communication 106.

  The determination in S409 may be performed according to whether or not the URL information of the external server 103 for acquiring the object data to be acquired is received together with the identification information via the close proximity wireless communication 106. For example, when the URL information of the external server 103 for acquiring the object data is received, it is determined that the object data can be acquired from the external server 103 via the public wireless communication 108. Further, for example, when URL information of the external server 103 for acquiring object data is not received, it is not determined that the object data can be acquired from the external server 103 via the public wireless communication 108.

  The determination in S409 may be performed according to the state of the mobile phone 101. For example, when the public wireless communication 108 is available (for example, when the mobile phone 101 is within the public wireless communication 108 range), it is determined that the object data can be acquired from the external server 103 via the public wireless communication 108. For example, it may be performed according to the state of the mobile phone 101. For example, when the public wireless communication 108 is not available (for example, when the mobile phone 101 is outside the public wireless communication 108 range), it is not determined that the object data can be acquired from the external server 103 via the public wireless communication 108. As the state of the other mobile phone 101, the determination in S409 may be performed using the battery capacity, the communication speed of the public wireless communication 108, and the like.

  If the handover process started in S403 is completed while the acquisition process is being performed, the acquisition process is interrupted, and the acquisition process is switched to a method of acquiring this image attached information via the short-range wireless communication 107. May be resumed. That is, when the short-range wireless communication 107 becomes possible before the acquisition of the object data by another alternative method is completed, the acquisition by the other method is interrupted, and the short-range wireless communication 107 uses the digital camera 102 to Acquisition of object data may be resumed. Thereby, the mobile phone 101 can acquire object data held in the digital camera 102 instead of the storage unit 206 and the external server 103.

  In addition, when it is determined that the image attached information can be acquired using both the proximity wireless communication 106 and the public wireless communication 108, the image acquisition by the two communications may be processed in parallel. Further, the time required for the acquisition process may be shortened by reducing the weight of the image attached information. For example, by compressing thumbnail image data or omitting information that is not displayed in step S408 from the image attachment information, the image attachment information to be communicated can be reduced in weight. The processing after S407 after the acquisition of the image attached information is completed is the same as described above.

  When it is determined that the image attached information cannot be acquired by either the close proximity wireless communication 106 or the public wireless communication 108 (NO in S409), only the image attached information existing in the storage unit 206 among the image IDs acquired in S403 is displayed on the touch panel 104. Are displayed in a list (S408).

  As described above, in this embodiment, not only the short-range wireless communication 107 but also alternative acquisition such as reading a thumbnail image from the storage unit 206 is used together. As a result, it is possible to shorten the time until the thumbnail images that can be acquired after the devices are brought closer to each other are displayed as a list. Therefore, it is possible to select an image without waiting for the user, and operability can be improved. In addition, by performing parallel image acquisition using the close proximity wireless communication 106 and the public wireless communication 108, the time required for the image attachment information acquisition processing can be shortened and operability can be improved. Also, by reducing the weight of the image attachment information such as using a compressed data format, the time required for the image attachment information acquisition process can be shortened and the operability can be improved. In addition, by storing the device ID of the counterpart device and comparing it with the device ID acquired at the start of the proximity wireless communication 106, the range of the image attached information in the storage unit 206 to be compared with the acquired image ID is narrowed down. The time required for the comparison process of the image ID determination unit 208 can be shortened.

  In the present embodiment, when object data is acquired with the start of the proximity wireless communication 106 as a trigger, an object data acquisition method using the proximity wireless communication 106, the short-range wireless communication 107, and the public wireless communication 108 is selected. Can do. In the conventional example, when object data is acquired as a trigger for close proximity wireless communication, it is necessary to acquire object data after performing handover to short distance wireless communication. Therefore, it is only possible to acquire object data using short-distance wireless communication that takes about several seconds to complete the assignment of the IP address, and the convenience of the user is impaired. In contrast to such a conventional example, in the present embodiment, an acquisition method can be selected according to object data to be acquired, and user convenience can be improved.

  In the present embodiment, the case where only the image attachment information is acquired from the counterpart apparatus has been described. However, the image data itself may be acquired in the same manner as the image attachment information. In this case, the image ID determination unit 208 searches the storage unit 206 for image attached information and image data corresponding to the image ID acquired from the counterpart device. In the present embodiment, an example in which thumbnail images are displayed in a list so as to be selectable among image attached information has been described. However, other information such as an image name, an image acquisition date and time, and an acquisition location are displayed in a selectable manner. However, the operability can be improved and the user experience can be improved.

  Further, information for identifying the owner of the partner device may be acquired from the partner device, and a method of acquiring only the image attached information and a method of acquiring the image data may be switched according to the owner identification information. That is, if the owners match, the image data may be acquired, and if the owners do not match, only the image attachment information may be acquired. Thereby, when the owners of the mobile phone 101 and the digital camera 102 match, the image data of the digital camera 102 can be shared with the mobile phone 101 only by bringing the devices closer to each other. When the owners of the devices are different from each other, only necessary image data can be shared after the devices are brought close to each other. As described above, by switching the image sharing method by the owner of the proximity target device, it is possible to appropriately manage the image data according to the rights relationship of the device. Note that a device ID may be used instead of the above-described owner identification information. In this case, a list of device IDs of devices owned by the owner of the mobile phone 101 is registered in the mobile phone 101 in advance, and the other device has the same ownership depending on whether or not the device ID of the other device is included in this list. It can be determined whether or not it is the property of the person.

  As described above, in the embodiment of the present invention, information necessary for starting a service is stored in advance in the device, and stored in advance when performing a handover from NFC to Wi-Fi, for example. Start the service with the information. For example, when Wi-Fi communication is newly started, if there is a shortage of information stored in advance, the information for the shortage is acquired by a method different from Wi-Fi and the service is started. For this reason, it is possible to reduce the waiting time until the services are started after the devices are brought close to each other.

<< Other Embodiments >>
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

201: Proximity wireless communication unit, 202: Short-range wireless communication unit, 203: Public wireless communication unit, 204: Message transmission / reception unit, 205: Message generation unit, 206: Storage unit, 207: Handover control unit, 208: Image ID determination Unit, 209: acquisition method determination unit, 210: touch panel control unit

Claims (12)

An information processing apparatus that performs wireless communication using a first communication method and a second communication method,
First communication means for acquiring identification information of the object data from another information processing apparatus holding object data by wireless communication of the first communication method;
A second communication means for starting a wireless communication connection with the other information processing apparatus according to the second communication method in response to the connection with the other information processing apparatus according to the first communication method;
The object data corresponding to the identification information is acquired by another method that does not use the second communication method, which is different from the method of acquiring object data from the other information processing apparatus by wireless communication of the second communication method. Determining means for determining whether or not
An acquisition means for acquiring the object data by the other method when it is determined that the object data can be acquired by the other method before wireless communication of the second communication method is enabled; An information processing apparatus comprising:   The information processing apparatus according to claim 1, wherein the other technique is a technique of reading out and acquiring object data corresponding to the identification information from a storage unit included in the information processing apparatus. Further comprising third communication means for performing wireless communication by a third communication method;
The information processing apparatus according to claim 1, wherein the other method is a method of acquiring object data corresponding to the identification information from a server device by wireless communication of the third communication method. The first communication means further acquires information for identifying the server device,
The information processing apparatus according to claim 3, wherein the acquisition unit acquires the object data from a server apparatus identified by the information.   The information according to claim 1, wherein the other method is a method of acquiring object data corresponding to the identification information from the other information processing apparatus by wireless communication of the first communication method. Processing equipment.   The acquisition unit interrupts the acquisition of the object data by the other method when wireless communication of the second communication method is possible before the acquisition of the object data by the other method is completed. The information processing apparatus according to claim 1, wherein the acquisition of the object data is resumed from the other information processing apparatus by wireless communication using the second communication method. The object data is a thumbnail image of image data,
The information processing apparatus according to claim 1, further comprising display means for displaying the acquired thumbnail image so as to be selectable.   The information processing apparatus according to claim 1, wherein the acquisition unit acquires the object data in a compressed data format. The first communication means further acquires device identification information for identifying the other information processing device,
The determination means determines whether the object data corresponding to the identification information and the device identification information can be acquired by the other method,
9. The acquisition unit according to claim 1, wherein the acquisition unit acquires the object data corresponding to the identification information and the device identification information by the other method according to a determination result of the determination unit. The information processing apparatus according to item 1. A control method for an information processing apparatus that performs wireless communication using a first communication method and a second communication method,
A first communication step of acquiring identification information of the object data from another information processing apparatus holding the object data by wireless communication of the first communication method;
A second communication step of starting a wireless communication connection with the other information processing apparatus according to the second communication method in response to the connection with the other information processing apparatus according to the first communication method;
The object data corresponding to the identification information is acquired by another method that does not use the second communication method, which is different from the method of acquiring object data from the other information processing apparatus by wireless communication of the second communication method. A determination step of determining whether or not it can be performed;
An acquisition step of acquiring the object data by the other method when it is determined that the object data can be acquired by the other method before wireless communication of the second communication method is enabled; and A method for controlling an information processing apparatus, comprising:   The computer program for functioning a computer as each means with which the information processing apparatus of any one of Claim 1 to 9 is provided. Receiving means for receiving identification information of object data from a communication partner device using a first communication method;
Selecting means for selecting whether to acquire the object data by a second communication method or a third communication method according to the identification information received by the receiving means and the state of the information processing apparatus;
An information processing apparatus.

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