JP2018036703A - Information processing device, control method thereof, information processing system and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for saving a labor when same format data is sent to an external unit.SOLUTION: A control part 101 of a digital camera 100 acquires identification information from a smartphone 200, and when being requested to send image data which the control part stores by the smartphone 200, determines whether or not, the identification information acquired from the smartphone 200 is registered in itself. The control part 101 sends image data according to a first image format to the smartphone 200 when the identification information of the smartphone 200 is registered, and sends image data according to a second image format different from the first image format, to the smartphone 200 when the identification information of the smartphone 200 is not registered.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information processing apparatus, its control method, an information processing system, and a program, and in particular, transmits predetermined data held by a first information processing apparatus from a first information processing apparatus to a second information processing apparatus. Regarding technology.

  Some digital cameras have a function of transmitting image data stored therein to an external device such as a smartphone by short-range wireless communication. When image data is transmitted to an external device, there is a demand for switching the image data size, file format, and the like according to the transmission destination of the image data. For example, there is a demand to send image data of a group photograph taken at a travel destination in a large size for editing to its own external device, while sending it to a small size for viewing to an external device of another person. On the other hand, a technique has been proposed that enables image data to be transmitted in a different image format for each transmission destination by associating the image format with the email address of the transmission destination of the image data and registering it in the digital camera. (See Patent Document 1).

JP 2005-227911 A

  However, in the technique described in Patent Document 1, it is necessary to manually set a transmission destination and an image format corresponding to the transmission destination for each transmission destination. Therefore, there is a problem that it takes time to send image data of the same image format to a plurality of other external devices.

  An object of the present invention is to provide a technique that saves time and labor when transmitting data of the same format to an external device.

  The information processing apparatus according to the present invention establishes communication via a communication unit that communicates with an external device, a registration unit that registers identification information of the external device, a storage unit that stores predetermined data, and the communication unit. Acquisition means for acquiring the identification information of the external device, and whether the external device identification information is registered in the registration means when the transmission of the data stored in the storage means is requested from the external device. When it is determined that the identification information of the external device that has requested transmission of the data is registered in the registration unit, the data according to the first format is transmitted to the external device, Transmission means for transmitting data according to a second format different from the first format to the external device when it is determined that the identification information of the external device is not registered in the registration unit. Features .

  ADVANTAGE OF THE INVENTION According to this invention, the effort at the time of transmitting the data of the same format to an external device can be saved, and usability (usability) can be improved.

It is a figure which shows schematic structure of the digital camera in embodiment of this invention. It is a block diagram which shows schematic structure of a smart phone. It is a flowchart of the process in which a digital camera registers a smart phone. It is a figure which shows an example of the image browsing screen displayed on the display part of a smart phone. It is a flowchart of the process in which a smart phone receives image data from a digital camera. It is a flowchart of the process which a digital camera transmits image data to a smart phone. It is a figure which shows the example of the transmission image format table which the digital camera preserve | saved. It is a figure which shows an example of UI for changing the image format of the image data which a smart phone receives with a smart phone.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, an information processing system including a first information processing apparatus and a second information processing apparatus having a configuration capable of bidirectional communication will be described. And each apparatus in the case of transmitting the image data (image file) image | photographed with the digital camera to a smart phone on the assumption that a 1st information processing apparatus is a digital camera and a 2nd information processing apparatus is a smart phone. The control will be described. However, the first information processing apparatus and the second information processing apparatus according to the present invention are not limited to such an example.

  First, the configuration of a digital camera as the first information processing apparatus will be described. FIG. 1A is a front perspective view showing a schematic configuration of a digital camera 100 which is an example of an information processing apparatus according to an embodiment of the present invention. FIG. 1B is a rear perspective view showing a schematic configuration of the digital camera 100. FIG. 1C is a schematic block diagram illustrating a hardware configuration of the digital camera 100. As shown in FIG. 1A, an imaging unit 102 including a lens and the like is provided on the front surface of the digital camera 100, and a release switch 105a is provided on the upper surface of the digital camera 100. As shown in FIG. 1B, a menu button 105b, a direction key 105c, a touch panel 105d, a communication button 105e, and a display unit 106 are provided on the back surface of the digital camera 100. The touch panel 105d includes a display unit 106. It is provided above.

  As shown in FIG. 1C, the digital camera 100 includes a control unit 101, an imaging unit 102, a nonvolatile memory 103, a work memory 104, an operation unit 105, a display unit 106, a storage medium 110, and a first communication unit. 111, a second communication unit 112, and a short-range wireless communication unit 114. The control unit 101 includes a CPU, executes a program stored in the non-volatile memory 103 according to an input signal, and controls operations and processes of each unit constituting the digital camera 100, thereby controlling the entire digital camera 100. I do. Note that the control unit 101 may be a dedicated processor such as an ASIC that implements all or part of the processing of each unit constituting the digital camera 100 by a logic circuit. Further, instead of a configuration in which the control unit 101 performs overall control of the digital camera 100, a configuration in which overall control of the digital camera 100 is realized by a plurality of pieces of hardware sharing processing. Good.

  The imaging unit 102 includes a lens, an imaging device, a signal processing circuit, an A / D converter, and the like. The light beam incident through the lens forms an image on the image sensor, and the image sensor converts the optical image into an electric signal. The electric signal is subjected to noise reduction processing and the like and then A / D converted to obtain image data (a photographed image). Digital data). The image data is temporarily stored in a buffer memory that is a part of the work memory 104, subjected to predetermined image processing by the control unit 101, and then stored in the storage medium 110. Note that image processing on image data acquired by the imaging unit 102 may be performed by a dedicated circuit instead of the control unit 101.

  The nonvolatile memory 103 is, for example, an EEPROM that can be electrically erased and stored. The nonvolatile memory 103 stores various programs such as an OS (operating system) that is basic software executed by the control unit 101 and an application that realizes an applied function in cooperation with the OS. A transmission image format table, which will be described later, is also stored in the nonvolatile memory 103. The work memory 104 is, for example, a DRAM or the like, and includes a buffer memory that temporarily stores image data of a captured image and an image display memory of the display unit 106, and is also used as a work area of the control unit 101. Is done.

  The operation unit 105 is a button, a switch, or the like used for receiving an instruction for the digital camera 100 from a user. The release switch 105a, menu button 105b, direction key 105c, touch panel 105d, and communication button 105e shown in FIGS. 1A and 1B are a part of the operation unit 105. The communication button 105 e is an operation unit for instructing the control unit 101 to start and end communication between the digital camera 100 and the external device via the first communication unit 111. Here, “external device” refers to a device other than the digital camera 100, and when viewed from the digital camera 100, the smartphone 200 can be regarded as one of the external devices. The operation unit 105 also includes a power button for switching on / off the power of the digital camera 100 and a playback button for instructing a playback display process on the display unit 106 for image data stored in the storage medium 110.

  The display unit 106 is a liquid crystal display or the like. The display unit 106 displays a setting menu for various functions of the digital camera 100, a viewfinder image at the time of shooting, a shot image, characters for interactive operation, and the like. Note that the display unit 106 is not necessarily built in the digital camera 100. The digital camera 100 may be connected to at least an internal or external display device and has a display control function for controlling the display of the connected display device. The storage medium 110 stores image data of captured images. The digital camera 100 only needs to have at least means for accessing the storage medium 110, and the storage medium 110 may be built in the digital camera 100 or detachable from the digital camera 100. Good.

  The first communication unit 111 is one of communication interfaces for communicating with an external device. The digital camera 100 can transmit / receive data to / from an external device via the first communication unit 111. In the present embodiment, the first communication unit 111 includes an interface for performing communication with an external apparatus using a wireless LAN, which is one of communication methods conforming to the IEEE 802.11 standard. The control unit 101 controls the first communication unit 111 to realize wireless communication with an external device using a wireless LAN.

  The second communication unit 112 is one of communication interfaces for communicating with an external device. The digital camera 100 can transmit / receive data to / from an external device via the second communication unit 112. For example, the digital camera 100 can transmit the identification data held in the nonvolatile memory 103 to the external device via the second communication unit 112. In the present embodiment, the second communication unit 112 includes an interface for performing wireless communication with an external device using Bluetooth (registered trademark), which is a communication method in conformity with the IEEE 802.15.1 standard. The control unit 101 controls the second communication unit 112 to realize wireless communication with an external device using Bluetooth (registered trademark).

  Note that the second communication unit 112 has at least one operation mode of the peripheral mode or the central mode. By operating the second communication unit 112 in the peripheral mode, the digital camera 100 can operate as a client device when performing wireless communication using Bluetooth (registered trademark). In addition, when the digital camera 100 operates as a client device, it is possible to communicate with an external device that is in a central mode. Authentication of an external device that communicates with the digital camera 100 can be performed by performing pairing in advance using a known technique, and unique information of the paired external device is held in the nonvolatile memory 103. .

  The short-range wireless communication unit 114 includes, for example, an antenna for wireless communication and a modem circuit and a communication controller for processing a wireless signal. The short-range wireless communication unit 114 outputs a modulated wireless signal from an antenna and demodulates the wireless signal received by the antenna, thereby realizing non-contact short-range communication according to the ISO / IEC 18092 standard (NFC) To do. The control unit 101 controls the short-range wireless communication unit 114 to realize wireless communication with an external device.

  Next, the configuration of a smartphone as the second information processing apparatus will be described. FIG. 2 is a schematic block diagram illustrating a hardware configuration of the smartphone 200. The smartphone 200 includes a control unit 201, an imaging unit 202, a nonvolatile memory 203, a work memory 204, an operation unit 205, a display unit 206, a storage medium 210, a microphone 215, and a speaker 216. The smartphone 200 also includes a first communication unit 211, a second communication unit 212, a public communication network connection unit 213, and a short-range wireless communication unit 214.

  The control unit 201 performs overall control of the smartphone 200 by executing a predetermined program in accordance with the input signal and controlling operations and processes of each unit of the smartphone 200. Instead of the configuration in which the control unit 201 performs overall control of the smartphone 200, a configuration in which a plurality of pieces of hardware share processing may be employed. The imaging unit 202 converts the optical image of the light beam incident on the lens into an electrical signal by the imaging element, and generates image data that is digital data by performing A / D conversion after the noise reduction processing. The image data is temporarily stored in the work memory 204 and then stored in the storage medium 210 through predetermined image processing by the control unit 201.

  The nonvolatile memory 203 is an EEPROM or the like that can be erased and stored electrically. The nonvolatile memory 203 stores various programs such as an OS that is basic software executed by the control unit 201 and an application that realizes an applied function in cooperation with the OS. The nonvolatile memory 203 stores a camera control application program for communicating with the digital camera 100. The work memory 204 is, for example, a DRAM or the like, includes an image display memory for the display unit 206, and is also used as a work area for the control unit 201.

  The operation unit 205 receives an instruction for the smartphone 200 from the user. The operation unit 205 includes a power button for turning on / off the power of the smartphone 200, a touch panel provided on the display unit 206, and the like. The display unit 206 displays captured images, characters for interactive operations, and the like. The storage medium 210 stores various data such as image data generated by the smartphone 200 and various data such as image data acquired from the outside. In the present embodiment, the storage medium 210 can store image data transmitted from the digital camera 100 via the first communication unit 211. The storage medium 210 may be detachable from the smartphone 200 or may be built in.

  Each of the first communication unit 211 and the second communication unit 212 is a communication interface for communicating with an external device. The “external device” herein refers to a device other than the smartphone 200, and when viewed from the smartphone 200, the digital camera 100 can be regarded as one of the external devices. In the present embodiment, the first communication unit 211 includes an interface capable of performing communication with the first communication unit 111 of the digital camera 100 using a wireless LAN in accordance with the IEEE 802.11 standard. In the present embodiment, the second communication unit 212 can wirelessly communicate with the second communication unit 112 of the digital camera 100 using Bluetooth (registered trademark) in accordance with the IEEE 802.15.1 standard. Includes interface. The control unit 201 realizes wireless communication with the digital camera 100 by controlling the first communication unit 211 and the second communication unit 212.

  The public communication network connection unit 213 is an interface used when performing public wireless communication, and the smartphone 200 communicates with a user of another device or between other devices via the public communication network connection unit 213. Data communication. During a call, the control unit 201 inputs and outputs an audio signal via the microphone 215 and the speaker 216. The short-range wireless communication unit 214 outputs a modulated wireless signal from the antenna, and demodulates the wireless signal received by the antenna, thereby performing non-contact short-range communication according to the ISO / IEC 18092 standard (NFC). Realize. When the short-range wireless communication unit 214 receives a data read request from another device, the short-range wireless communication unit 214 outputs response data based on the data stored in the nonvolatile memory 203.

  In the present embodiment, the short-range wireless communication unit 214 is a communication unit for realizing communication with the short-range wireless communication unit 114 of the digital camera 100 and is used for processing an antenna and a wireless signal for wireless communication. It has a modem circuit and a communication controller. The smartphone 200 operates in the card reader mode, the card writer mode, and the P2P mode defined by the NFC standard through the short-range wireless communication unit 214, and mainly acts as an initiator. In contrast, the digital camera 100 mainly acts as a target via the short-range wireless communication unit 114.

  Next, a communication form between the digital camera 100 and the smartphone 200 will be described. The digital camera 100 and the smartphone 200 communicate directly with each other without using other access points. For example, when the digital camera 100 forms a wireless LAN network as a simple access point and operates as a simple access point, the digital camera 100 starts to periodically transmit a beacon signal. The smartphone 200 detects a beacon signal and participates in the wireless LAN network formed by the digital camera 100. Then, the digital camera 100 and the smartphone 200 establish communication between devices through processing such as mutual device discovery and device capability acquisition, thereby enabling data transmission / reception between the devices.

  However, the digital camera 100 and the smartphone 200 include a plurality of communication units as described above. Therefore, the establishment of communication between the digital camera 100 and the smartphone 200 is not limited to the case of wireless LAN between the first communication units 111 and 211. Communication between the digital camera 100 and the smartphone 200 may be established by Bluetooth (registered trademark) between the second communication units 112 and 212. Communication between the digital camera 100 and the smartphone 200 may be established by NFC between the short-range wireless communication units 114 and 214. The image data in the digital camera 100 can be transmitted to the smartphone 200 via established communication.

  When communication between the digital camera 100 and the smartphone 200 is established, the smartphone 200 can start a camera control application. The user of the smartphone 200 can request the digital camera 100 to browse thumbnails of images stored in the digital camera 100 and transmit image data to the smartphone 200 through the UI of the camera control application. When the digital camera 100 receives a transmission request for image data from the smartphone 200, the digital camera 100 acquires the identification information of the smartphone 200. Then, the digital camera 100 switches the image format and transmits the image data to the smartphone 200 according to whether or not the acquired identification information is registered in the digital camera 100. The digital camera 100 can hold the identification information of the external device in the nonvolatile memory 103.

  Next, transmission control of image data from the digital camera 100 to the smartphone 200 will be described below by taking as an example the case of transmitting image data of a still image (captured image). However, even video data of a moving image (captured video) can be handled in the same manner as still image data. In the following description, the identification information of the smartphone 200 registered in the digital camera 100 may be referred to as “the smartphone 200 is registered” or “the registered smartphone 200” as appropriate.

  A process in which the digital camera 100 acquires and registers identification information of the smartphone 200 will be described. FIG. 3 is a flowchart of processing in which the digital camera 100 acquires and registers identification information of the smartphone 200. Each process illustrated in the flowchart of FIG. 3 is realized by the control unit 101 developing a program stored in the nonvolatile memory 103 in the work memory 104 and controlling the operation of each unit of the digital camera 100.

  When communication between the digital camera 100 and the smartphone 200 is established, the control unit 101 transmits an identification information acquisition request to the smartphone 200 in step S <b> 301. The identification information of the smartphone 200 is, for example, a model name (model) and a serial number of the smartphone 200. However, the identification information is not limited to this, and may be, for example, a Mac address of the smartphone 200, a user name or a nickname arbitrarily given to the smartphone 200 by the user, or a combination thereof.

  When receiving the acquisition request in step S301, the smartphone 200 transmits its identification information to the digital camera 100. Therefore, in step S <b> 302, the control unit 101 determines whether identification information has been received from the smartphone 200. Control unit 101 waits until identification information is received from smartphone 200 (NO in S302), and if it is determined that identification information is received from smartphone 200 (YES in S302), the process proceeds to step S303.

  In step S303, the control unit 101 determines whether or not the identification information received in step S302 has been registered. If the control unit 101 determines that the identification information received in step S302 has been registered (YES in S303), the control unit 101 terminates this process, and determines that the identification information received in step S302 is unregistered ( The process proceeds to step S304. In step S <b> 304, the control unit 101 displays on the display unit 106 a screen (UI: user interface) for inquiring the user whether or not to register the identification information of the communicating smartphone 200. The display in step S304 includes a touch item for accepting selection of “register” and “not register” in addition to the inquiry message.

  In step S305, the control unit 101 determines whether registration of the smartphone 200 has been selected. If the digital camera 100 determines that registration of the smartphone 200 is selected (YES in S305), the process proceeds to step S306, and if it is determined that registration of the smartphone 200 is not selected (NO in S305), This process is terminated. In step S <b> 306, the control unit 101 holds the identification information of the smartphone 200 received in step S <b> 302 in the nonvolatile memory 103. As a result, the smartphone 200 is registered in the digital camera 100, and this process ends.

  In the flow of FIG. 3, a message is displayed in step S <b> 304, and it is determined whether or not to register the identification information of the smartphone 200 according to the user determination. However, the present invention is not limited to this, and the identification information acquired in step S302 may be automatically registered when a specific communication or operation occurs. For example, when a pairing process is performed between the digital camera 100 and the smartphone 200 using Bluetooth (registered trademark), the control unit 101 may automatically register the identification information of the smartphone 200. In this case, when the pairing process is completed, the process of step S301 is started. When the determination of step S303 is “NO”, the process of step S306 is performed without performing steps S304 to S305. Similarly, when the communication by the short-range wireless communication is established between the digital camera 100 and the smartphone 200, the identification information of the smartphone 200 may be automatically registered in the digital camera 100. In the flow of FIG. 3, the control unit 101 of the digital camera 100 acquires the identification information after communication with the smartphone 200 is established. However, the identification information may be acquired at a different timing. For example, it may be a flow in which the control unit 101 acquires, as identification information, data exchanged during device discovery or capability exchange before connection is established.

  Next, an overview of a camera control application that operates on the smartphone 200 and an image storage process on the smartphone 200 will be described. Since the digital camera 100 generally manages body data of image data of a captured image and related data including a thumbnail thereof, when storing image data of a captured image, the image data (image file) includes an image ID. Is uniquely assigned. Then, the nonvolatile memory 103 holds an image ID list in which all image IDs assigned to individual image files are listed. Therefore, when the camera control application is activated on the smartphone 200, the control unit 201 transmits a thumbnail acquisition request for image data in the image ID list to the digital camera 100 prior to the image data acquisition request. When the smartphone 200 acquires a thumbnail from the digital camera 100 in response to the thumbnail acquisition request, the smartphone 200 displays an image browsing screen that is a list display screen of the acquired thumbnails on the display unit 206, and the image data to be acquired by the user of the smartphone 200. Encourage selection.

  FIG. 4 is a diagram illustrating an example of an image browsing screen displayed on the display unit 206 of the smartphone 200. In the thumbnail display area 401 of the image browsing screen, thumbnails acquired from the digital camera 100 are displayed. When the thumbnail displayed in the thumbnail display area 401 is touched by the user, the control unit 201 displays the selection mark 402 superimposed on the touched thumbnail to clearly indicate that it is in the selected state. When the display area of the thumbnail on which the selection mark 402 is displayed is touched again, the selected state of the thumbnail is canceled and the selection mark 402 is not displayed. In some cases, the number of acquired thumbnails is larger than the number that can be displayed in the thumbnail display area 401 at one time. In this case, for example, a thumbnail can be shifted by a flick operation on the display unit 206 (touch panel), and a non-displayed thumbnail can be displayed in the thumbnail display area 401.

  In the display area 403 of the selected number provided on the upper side of the thumbnail display area 401, the number of thumbnails in the selected state is displayed. A save button 404 and a cancel button 405 are provided below the thumbnail display area 401. When the control unit 201 detects a touch on the save button 404, the control unit 201 requests the digital camera 100 to transmit image data corresponding to the selected thumbnail, and receives the requested image data. Save to. When detecting a touch on the cancel button 405, the control unit 201 cancels the thumbnail selection state.

  FIG. 5 is a flowchart of processing in which the smartphone 200 receives and stores image data from the digital camera 100. Each process illustrated in the flowchart of FIG. 5 is realized by the control unit 201 developing a program stored in the nonvolatile memory 203 in the work memory 204 and controlling the operation of each unit of the smartphone 200. When the control unit 201 detects that the save button 404 is touched in a state where at least one thumbnail is selected on the image browsing screen illustrated in FIG. 4, the control unit 201 starts the process of step S <b> 501.

  In step S501, the control unit 201 adds an image ID corresponding to the selected thumbnail to the requested image list. The request image list is a list of image IDs requested to be acquired from the digital camera 100. In step S502, the control unit 201 determines whether the requested image list is empty. If the requested image list is empty (YES in S502), the control unit 201 ends this process. If the requested image list includes at least one image ID (NO in S502), the control unit 201 advances the process to step S503.

  In step S <b> 503, the control unit 201 transmits an image data acquisition request to the digital camera 100 using the top image ID of the request image list. The digital camera 100 transmits the image data to the smartphone 200 in response to the image data acquisition request. In step S504, the control unit 201 determines whether the requested image data is received from the digital camera 100. The control unit 201 waits until reception of the requested image data is completed (NO in S504). If it is determined that reception of the requested image data is completed (YES in S504), the process proceeds to step S505. In step S505, the control unit 201 stores the image data received in step S504 in the storage medium 210. In step S506, the control unit 201 deletes the image ID corresponding to the image data saved in the storage medium 210 in step S505 from the request image list. Thereafter, the control unit 201 returns the process to step S502. As a result, the reception of the image data corresponding to all the image IDs in the request image list is completed, so that the request image list becomes empty, and the process of the flowchart of FIG. 5 ends.

  FIG. 6 is a flowchart of processing in which the digital camera 100 transmits image data to the smartphone 200. Each process shown in the flowchart of FIG. 6 is realized by the control unit 101 developing a program stored in the nonvolatile memory 103 in the work memory 104 and controlling the operation of each unit of the digital camera 100.

  In step S <b> 601, the control unit 101 determines whether an image data transmission request is received from the smartphone 200. The transmission request received by the control unit 101 in step S601 is the one transmitted from the smartphone 200 in step S501. When it is determined that the image data transmission request has not been received (NO in S601), the control unit 101 proceeds to step S607, and when it is determined that the image data transmission request has been received (YES in S601). The process proceeds to step S602. In step S602, the control unit 101 determines whether or not the smartphone 200 (identification information thereof) is registered in itself. When the control unit 101 determines that the smartphone 200 is registered (YES in S602), the process proceeds to step S603. When the control unit 101 determines that the smartphone 200 is not registered (NO in S602), the process proceeds to step S604. Proceed to

  In the present embodiment, the process of the flowchart of FIG. 3 is executed before the process of the flowchart of FIG. 6 is executed, and accordingly, the process is performed according to the determination result in step S305. The process proceeds to S604. On the other hand, there may be a case where the flowchart of FIG. 6 is executed without executing the processing of the flowchart of FIG. For example, after communication between the digital camera 100 and the smartphone 200 is established, a case where the identification information of the smartphone 200 is included in the image data transmission request and transmitted is conceivable. In this case, if the smartphone 200 has been registered, the process proceeds to step S603. On the other hand, if the smartphone 200 is not registered, the determination in step S602 may be “NO”, or the process of the flowchart in FIG. 3 is performed, and the process proceeds to step S603 or step S604 according to the determination result of step S305 at that time. You may make it advance.

  Steps S <b> 603 and S <b> 604 are processes in which the control unit 101 determines the image format of the image data to be transmitted to the smartphone 200 based on the transmission image format table stored in the nonvolatile memory 103. The transmission image format table stores a first image format that is adopted when the smartphone 200 is registered and a second image format that is adopted when the smartphone 200 is not registered. The control unit 101 reads out the corresponding image format. A specific example of the transmission image format table will be described later.

  In step S603, the control unit 101 reads the image format when the smartphone 200 is registered from the transmission image format table and sets it as the image format to be transmitted. On the other hand, in step S604, the control unit 101 reads the image format when the smartphone 200 is not registered from the transmission image format table and sets it as the image format to be transmitted. In steps S603 and S604, the image format set in each step may be displayed on the display unit 106 of the digital camera 100, whereby the user of the digital camera 100 determines the image format of the image data to be transmitted. It can be easily grasped. At that time, whether or not the smartphone 200 has been registered may be displayed together with the display unit 106.

  In step S605 after step S603 or step S604, the control unit 101 reads out the image data that is the target of the image data acquisition request received in step S601. In step S605, the control unit 101 converts the read image data into the image format set in step S603 or step S604. Specifically, it is necessary among processing such as processing for developing RAW image data into JPEG image data, image data format conversion processing, resizing processing, signature information addition processing for image data, and digital watermark embedding in an image. The predetermined processing is executed. However, such conversion processing is not performed when the read image data is in the set image format.

  In step S606, the control unit 101 transmits the image data processed in step S605 to the smartphone 200. Thereafter, in step S607, the control unit 101 determines whether disconnection of communication with the smartphone 200 is detected. The disconnection of communication may be executed on the digital camera 100 side, requested from the smartphone 200, or executed on the smartphone 200 side. For example, when the communication button 105e of the digital camera 100 is pressed while communication with the smartphone 200 is established, the control unit 101 detects that communication has been disconnected. The disconnection of communication is not limited to the operation of the communication button 105e, but may be automatically performed by the control unit 101 when the non-operation state of the digital camera 100 continues for a certain period of time. The control unit 101 detects that the communication with the smartphone 200 has been disconnected also when the smartphone 200 is turned off or when the camera control application is terminated. When it is determined that the communication has been disconnected (YES in S607), the control unit 101 terminates this process. When it is determined that the communication has not been disconnected (NO in S607), the control unit 101 returns the process to step S601.

  In step S605 described above, the digital camera 100 performs necessary image processing. However, the smartphone 200 may perform necessary image processing. For example, the image data may be transmitted in step S606, the image processing instruction may be transmitted to the smartphone 200, and the image data after the image data conversion processing is performed by the smartphone 200 may be stored in the storage medium 210. . Further, necessary image processing may be executed by an external image processing apparatus that is connected to the digital camera 100 so as to be communicable with the smartphone 200.

  FIG. 7 is a diagram illustrating an example of a transmission image format table used in steps S603 and S604. In the transmission image format table, “request type” indicates the file format of the image data requested to be transmitted. The digital camera 100 reads the image format used in step S605 from the transmission image format table depending on the request type and whether the smartphone 200 is registered or not registered. In the transmission image format table, the transmission file format, the maximum value of the long side size, the moving image frame rate, and the signature are defined as the setting items of the image format. The maximum value of the long side size is the maximum size of the number of long side pixels of the image. The moving image frame rate is the maximum frame rate when the original image is a moving image file. Note that the setting items of the image format are not limited to these.

  For example, when there is a transmission request for a RAW format still image from an unregistered smartphone 200, in step S604, the control unit 101 sets file format: JPG file, long side size: 800 pixels, and signature addition: yes. Is read. In step S605, the control unit 101 performs JPEG conversion (RAW development) of the RAW image data, reduces the image so that the long side becomes 800 pixels, and embeds a digital watermark (electronic signature) in the image. Thereafter, the control unit 101 transmits the image data generated in step S605 to the smartphone 200 in step S606. The digital watermark can be embedded with the serial number of the digital camera 100, the date and time of image data shooting, the owner name registered in the digital camera 100, and the like. For example, when there is a transmission request for a still image in the RAW format from the registered smartphone 200, in step S603, file format: RAW file, long side size: original, and signature addition: none are set. At this time, since the original image data satisfies the image format to be transmitted, the control unit 101 transmits the stored image data to the smartphone 200 in step S606 without performing image processing in step S605.

  In the transmission image format table, when image data is transmitted to the registered smartphone 200, a setting value for not converting the image data may be held as a default value. As a result, the original image data is always transmitted to the registered smartphone 200. On the other hand, when transmitting image data to an unregistered smartphone 200, a setting value to be converted into image data that is considered appropriate for browsing may be held as a default value.

  The various values held in the transmission image format table may be freely settable or changeable by the user of the digital camera 100. Further, the digital camera 100 may transmit image format information to the smartphone 200, and the smartphone 200 may be configured to display the received image format information on the display unit 206. In addition, the digital camera 100 may notify the smartphone 200 whether the setting can be changed, so that the smartphone 200 can change the image format. For example, only when the smartphone 200 is registered in the digital camera 100, the digital camera 100 notifies the smartphone 200 that the setting can be changed. Thereby, it becomes possible to change the setting value of the image format only from the registered smartphone 200.

  FIG. 8 is a diagram illustrating an example of a user interface (UI) displayed on the display unit 206 of the smartphone 200 in order to change the image format of image data received from the digital camera 100 in the smartphone 200. The UI in FIG. 8 is displayed on the display unit 206 when the smartphone 200 is registered in the digital camera 100 and is notified from the digital camera 100 to the smartphone 200 after the determination in step S602.

  In the UI of FIG. 8, information held in the transmission image format table of the digital camera 100 is displayed in the information display area 801 as initial information. The user of the smartphone 200 can select the type of image data to be received by touching the switching tab 802. In FIG. 8, a still image (RAW) is selected. Various buttons for changing setting values are arranged in the information display area 801. A format selection button 803 switches the transmission file format. The size button 804 sets the maximum value of the long side size. A signature button 805 switches presence / absence of an electronic signature. If the received image data is moving image data, a change button for changing the frame rate is further arranged in the information display area 801. If the setting reflection button 806 arranged below the information display area 801 is touched after the setting value is changed by various buttons displayed in the information display area 801, the control unit 201 causes the change value (new Set value) to the digital camera 100. The control unit 101 of the digital camera 100 updates the transmission image format table based on the notification from the smartphone 200, and starts the process of step S605.

  When the user of the digital camera 100 registers only his / her external device in the digital camera 100, the user of the digital camera 100 matches the user of the external device. In this case, as described above, there is no inconvenience even if the transmission image format table of the digital camera 100 is updated from the registered smartphone 200. Note that only some of the items displayed in the information display area 801 may be changed from the smartphone 200.

  On the other hand, even if the smartphone 200 is not registered in the digital camera 100, the information held in the transmission image format table of the digital camera 100 may be displayed on the display unit 206 of the smartphone 200. In this case, in the smartphone 200, the setting change is not possible, or the items that can be changed are restricted, and the range (value) that can be set in the items that can be changed at that time is restricted. May be.

  Further, the control unit 101 of the digital camera 100 may notify the smartphone 200 by changing an item or a range of values that can be changed depending on whether the smartphone 200 has been registered or not registered. For example, when the smartphone 200 is not registered, the maximum value of the long side size of a still image can be changed only at 600 pixels or less, so that the change to a large image size cannot be performed. In addition, the setting value changed by the smartphone 200 may be held and used only while communication is established between the digital camera 100 and the smartphone 200. In this case, even if the setting of the image format is changed on the smartphone 200, the control unit of the digital camera 100 does not change the setting of the transmission image format table held by itself. Thereby, the setting change of the image format on the smartphone 200 can be temporarily permitted, and the setting value by the user of the digital camera 100 can be held.

  As described above, in the present embodiment, the first information processing apparatus (digital camera 100) has means for registering identification information of the second information processing apparatus (smart phone 200), and has established communication. It is determined whether the second information processing apparatus is registered or not registered. Then, the first information processing apparatus switches the data format to be transmitted to the second information processing apparatus according to the determination result, converts the data format, size, etc. as necessary, and performs the second information processing. Send to device. Accordingly, the user of the first information processing apparatus registers only his / her second information processing apparatus in the first information processing apparatus, so that the first information processing apparatus changes to the second information processing apparatus. It is possible to save the trouble of setting the format of data to be transmitted to each second information processing apparatus. In addition, the data format is automatically switched and transmitted to the second information processing apparatus according to whether or not the second information processing apparatus as the data transmission destination is the user of the first information processing apparatus. can do.

  Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included.

  For example, in the above description, a digital camera is taken up as the first information processing apparatus according to the present invention. However, the first information processing apparatus is not limited to this, and may be, for example, a digital video camera, a mobile phone or a smartphone having a shooting function, a game machine, a music player, a tablet terminal (tablet PC), a personal computer, or the like. Good. Moreover, the smart phone was taken up as a 2nd information processing apparatus which can communicate with a 1st information processing apparatus. However, the second information processing apparatus is not limited to this, and may be various electronic devices such as a mobile phone, a tablet terminal (tablet PC), a personal computer, and a digital camera. Furthermore, in the above-described embodiment, image data is taken up as data to be transmitted from the first information processing apparatus to the second information processing apparatus. However, the present invention is not limited to this, and the data to be transmitted is music data, document data, or the like. Even so, the present invention can be applied.

  Furthermore, in the above embodiment, the first communication unit 111 included in the digital camera 100 is configured to communicate with an external device via a wireless LAN. However, the present invention is not limited to this, and the digital camera 100 may be configured to include a first communication unit 111 that performs communication with an external device via infrared communication or wired LAN, for example. Similarly, the second communication unit 112 included in the digital camera 100 is not limited to Bluetooth (registered trademark), and may be, for example, a wireless LAN or infrared communication of the IEEE 802.11 standard. However, the first communication unit 111 and the second communication unit 112 perform communication using different communication methods. The configuration of the first communication unit 211 and the second communication unit 212 of the smartphone 200 can be changed in the same manner as the first communication unit 111 and the second communication unit 112 of the digital camera 100. The first communication unit 211, the second communication unit 212, and the public communication network connection unit 213 of the smartphone 200 do not need to be configured by independent hardware, for example, have a configuration in which one antenna is also used. Is possible.

  Furthermore, in the above-described embodiment, the configuration has been described in which the digital camera 100 forms a wireless LAN network as a simple access point, and the digital camera 100 and the smartphone 200 communicate directly. However, the present invention is not limited to this, and the digital camera 100 and the smartphone 200 may participate in a network formed by an external access point and transmit and receive data using a communication method such as an infrastructure mode for performing communication on the joined network. Good.

  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.

DESCRIPTION OF SYMBOLS 100 Digital camera 101 Control part 110 Storage medium 111 1st communication part 112 2nd communication part 114 Short-range wireless communication part 200 Smartphone 201 Control part 211 1st communication part 212 2nd communication part 214 Short-range wireless communication part

Claims (12)

A communication means for communicating with an external device;
Registration means for registering identification information of the external device;
Storage means for storing predetermined data;
Obtaining means for obtaining identification information of an external device with which communication has been established via the communication means;
A determination unit that determines whether or not the identification information of the external device is registered in the registration unit when transmission of data stored in the storage unit is requested from the external device;
When it is determined that the identification information of the external device that has requested transmission of the data is registered in the registration unit, data according to the first format is transmitted to the external device, and the identification information of the external device is An information processing apparatus comprising: a transmission unit configured to transmit data according to a second format different from the first format to the external device when it is determined that it is not registered in the registration unit. The acquisition means automatically acquires the identification information of the external device when communication with the external device is established,
The information processing apparatus according to claim 1, wherein the registration unit automatically registers identification information of the external apparatus. Having a display,
The registration unit displays a screen on the display unit for allowing the user of the information processing apparatus to select whether or not to register the identification information when the acquisition unit acquires the identification information from an external device. The information processing apparatus according to claim 1. When the format of the data requested to be transmitted from the external device is stored in the storage means is different from the first format or the second format, the data is converted to the first format or the second format. Further comprising a converting means for converting the data into the format 2;
The information processing apparatus according to claim 1, wherein the transmission unit transmits the data converted by the conversion unit to the external device. Notification means for notifying the external device of the first format when communication with an external device whose identification information is registered in the registration means is established;
2. The apparatus according to claim 1, further comprising: a changing unit configured to change the setting of the first format according to the notification when the notification of changing the setting of the first format is received from the external device. 5. The information processing apparatus according to any one of 4. The data is image data;
The information processing according to any one of claims 1 to 5, wherein each of the first format and the second format includes at least one of a file format, an image size, and an electronic signature embedding. apparatus. A communication means for communicating with an external device;
Request means for requesting the external device to transmit to the list of data stored in the external device via the communication means;
A selection means for selecting data to request transmission from the list of data acquired from the external device;
Transmitting means for transmitting a list of data selected by the selecting means to the external device;
Change means for notifying the external device of a change in setting of the format when receiving information from the external device regarding the format of the data when the external device transmits data in the list to the external device; An information processing apparatus comprising: An information processing system having a first information processing apparatus and a second information processing apparatus capable of bidirectional communication,
The first information processing apparatus includes:
Storage means for storing predetermined data;
Registration means for registering identification information of other devices capable of communication;
Obtaining means for obtaining identification information of the second information processing apparatus;
Determining whether or not the identification information of the second information processing apparatus is registered in the registration means when the second information processing apparatus requests transmission of data stored in the storage means Means,
When it is determined that the identification information of the second information processing apparatus is registered in the registration unit, data according to a first format is transmitted to the second information processing apparatus, and the second information processing is performed. Transmitting means for transmitting data according to a second format different from the first format to the second information processing device when it is determined that the identification information of the device is not registered in the registration means; Prepared,
The second information processing apparatus
Transmits its own identification information to the first information processing apparatus, and requests the first information processing apparatus to transmit a list of data stored in the storage means of the first information processing apparatus to itself. Request means;
Transmission means for selecting data requesting transmission from itself from the list of data acquired from the first information processing apparatus, and transmitting the selected list of data to the first information processing apparatus. An information processing system characterized by features. The first information processing apparatus includes:
Notification means for notifying the second information processing apparatus of the first format when it is determined that the identification information of the second information processing apparatus is registered in the registration means;
Change means for changing the setting of the first format according to the notification when receiving a notification of changing the setting of the first format from the second information processing apparatus;
The second information processing apparatus
And changing means for notifying the first information processing apparatus of a change in the setting of the first form when receiving information about the first form from the first information processing apparatus. The information processing system according to claim 8. A method for controlling an information processing apparatus,
Establishing communication with an external device;
Obtaining identification information of the external device;
Determining whether or not the identification information of the external device is registered in its storage means when the external device is requested to transmit data stored by the external device;
When it is determined that the identification information of the external device is registered in the storage unit, data according to the first format is transmitted to the external device, and the identification information of the external device is registered in the storage unit And a step of transmitting data according to a second format different from the first format to the external device when it is determined that there is no such information. Notifying the external device of the first format when it is determined that the identification information of the external device is registered in the storage means;
11. The method according to claim 10, further comprising: changing the setting of the first format according to the notification when the notification of changing the setting of the first format is received from the external device. Method for controlling the information processing apparatus.   12. A program for causing a computer to execute each step of the control method for the information processing apparatus according to claim 10 or 11.

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