JP2013093829A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve performance pertaining control of connection to a camera.SOLUTION: A smart phone CPU 60 establishes connection to one digital camera or a desired camera among two or more non-connected digital cameras. The smart phone CPU 60 also establishes connection to an issue source of a connection possibility notice when the connection possibility notice issued from one non-connected digital camera or either one of two or more non-connected digital cameras is received by a communication I/F 64. The smart phone CPU 60 also requests a pause to one digital camera or a digital camera satisfying predetermined conditions among two or more digital cameras, for which connection has been established, and connection to the digital camera at the request destination is cancelled in relation to request processing.

Description

  The present invention relates to an electronic device, and more particularly to an electronic device connected to an electronic camera.

  An example of this type of electronic device is disclosed in Patent Document 1. According to this background art, a single photographing camera terminal is connected to each of one or more operation / confirmation terminals via a wireless interface. The photographing camera terminal transmits through image data obtained from the camera unit to the operation / confirmation terminal, and the operation / confirmation terminal displays an image based on the through image data received from the photographing camera terminal on the display unit. When the operation / confirmation terminal is operated, operation information is transmitted from the operation / confirmation terminal to the photographing camera terminal. The photographing camera terminal controls the camera unit according to the operation information received from the operation / confirmation terminal. As a result, it is possible to perform photographing after confirming that the photographing target is in the intended state.

JP 2008-199460 A

  However, in the background art, since a camera driven by a battery is generally connected to the terminal by a wireless interface that consumes a large amount of battery, the battery is often consumed at a faster pace than the operator expects. For this reason, the battery may be consumed until the voltage supply to the camera becomes impossible, and the wireless connection may be unexpectedly disconnected. Therefore, since the connection with the camera becomes unstable, there is a limit to the performance related to the connection control with the camera.

  Therefore, a main object of the present invention is to provide an electronic apparatus capable of improving performance related to connection control with a camera.

  The electronic device according to the present invention (50: reference numeral corresponding to the embodiment; the same applies hereinafter) is a first establishing means (S111˜) for establishing a connection with a desired camera among one or more cameras in a disconnected state. S125, S131 to S147, S351 to S363), second to establish connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras that are not connected Establishing means (S341, S113 to S125, S131 to S147, S351 to 363), one or two or more cameras whose connection is established by the first establishing means and / or the second establishing means, to a camera that satisfies a predetermined condition Request means (S391 to S395, S405 to S411) for requesting suspension and release means (S397, S413) for releasing the connection of the request means with the request destination in relation to the processing of the request means.

  Preferably, the predetermined condition includes a remaining amount condition that the remaining battery level is below a reference.

  Preferably, the predetermined condition includes an operation condition that a pause operation is performed.

  More preferably, a remaining amount receiving unit (S387, S401) for receiving a remaining amount notification indicating the remaining amount of battery from one or more cameras established by the first establishing unit and / or the second establishing unit, and Remaining amount display means (S373 to S375, S383 to S385, S389, S403) for displaying remaining amount information indicating the remaining battery level based on the remaining amount notification received by the remaining amount receiving unit is further provided.

  Preferably, the specific notification is issued from the camera that has returned from the hibernation state.

  Preferably, image receiving means (S173) for receiving image data output from each of the one or more cameras established by the first establishing means and / or the second establishing means, and received by the receiving means Image display means (S193) for displaying an image based on the image data is further provided.

  The connection control program according to the present invention is a first establishment step (S111 to S125) for establishing a connection with a desired camera among one or more cameras in an unconnected state in the processor (60) of the electronic device (50). , S131 to S147, S351 to S363), the second establishment for establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state Step (S341, S113 to S125, S131 to S147, S351 to 363), one or two or more cameras whose connection is established by the first establishment step and / or the second establishment step, are paused on the camera that satisfies the predetermined condition Connection control to execute request steps (S391 to S395, S405 to S411) requesting and release steps (S397, S413) to release the connection with the request destination of the request step in connection with the processing of the request step It is a program.

  The connection control method according to the present invention is a connection control method executed by the electronic device (50), and a first establishment step for establishing a connection with a desired camera among one or more cameras in a non-connected state. (S111 to S125, S131 to S147, S351 to S363), establishes connection with the issuer of the specific notification in response to the specific notification issued from any one or more of the unconnected cameras The second establishment step (S341, S113 to S125, S131 to S147, S351 to 363), the first establishment step and / or one or two or more cameras whose connections are established by the second establishment step, satisfy the predetermined condition A request step (S391 to S395, S405 to S411) for requesting the camera to pause, and a release step (S397, S413) for releasing the connection with the request destination of the request step in connection with the processing of the request step.

  An external control program according to the present invention is an external control program supplied to an electronic device (50) including a processor (60) that executes processing according to an internal control program stored in a memory (62), and is in a disconnected state. A first establishment step (S111 to S125, S131 to S147, S351 to S363) for establishing a connection with a desired camera among one or more cameras, either one or more cameras in a disconnected state A second establishing step (S341, S113 to S125, S131 to S147, S351 to 363), a first establishing step and / or a step of establishing a connection with the issuer of the specific notification in response to the specific notification issued from one A request step (S391 to S395, S405 to S411) for requesting a camera that satisfies a predetermined condition among one or more cameras whose connection is established in the second establishment step, and connection with a request destination of the request step To process the requested step Releasing step of releasing by continuous a (S397, S413) in cooperation with the internal control program for execution by the processor, an external control program.

  An electronic device (50) according to the present invention includes a fetch unit (64) that fetches an external control program, and a processor that executes processing according to the external control program fetched by the fetch unit and the internal control program stored in the memory (62) The external control program is a first establishment step (S111 to S125, S131 to S147) for establishing a connection with a desired camera among one or more cameras in a disconnected state. , S351 to S363), a second establishing step (S341, S363) for establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state. S113 to S125, S131 to S147, S351 to 363), requesting a pause of a camera that satisfies a predetermined condition among one or more cameras that are connected by the first establishment step and / or the second establishment step The request steps (S391 to S395, S405 to S411) and the release steps (S397, S413) for releasing the connection with the request destination of the request step in connection with the processing of the request step are executed in cooperation with the internal control program It corresponds to a program.

  According to the present invention, when the camera whose connection is established by the first establishing means satisfies the predetermined condition, the requesting means requests the camera to pause, and the releasing means releases the connection with the request destination. When the disconnected camera returns from the hibernation state and issues a specific notification, the connection with the issuer is established by the second establishing means. Thus, connection / disconnection with the camera is adaptively controlled in consideration of satisfaction / non-satisfaction of the predetermined condition. This improves the performance related to connection control with the camera.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is a block diagram which shows an example of a structure of the digital camera which forms the camera system of this Example. It is a block diagram which shows another example of a structure of the digital camera which forms the camera system of this Example. It is a block diagram which shows an example of a structure of the smart phone which forms the camera system of this Example. It is an illustration figure which shows an example of the connection aspect of the digital camera shown in FIG. 1 or FIG. 2 and the smart phone shown in FIG. FIG. 3 is an illustrative view showing one example of a configuration of a register applied to the digital camera shown in FIG. 1 or FIG. 2. (A) is an illustration figure which shows an example of a structure of the search register applied to the smart phone shown in FIG. 3, (B) is an illustration figure which shows an example of a structure of the connection register applied to the smart phone shown in FIG. is there. It is an illustration figure which shows an example of the registration state of a search register. It is an illustration figure which shows an example of the group menu displayed on the LCD monitor of a smart phone. It is an illustration figure which shows a part of communication process between a single digital camera and a single smart phone. It is an illustration figure which shows a part of communication process between a single digital camera and a some smart phone. (A) is an illustration figure which shows an example of the registration state of the connection register | resistor RGSTc provided in the smart phone, (B) is an illustration figure which shows an example of the display state of the LCD monitor provided in the smart phone. (A) is an illustration figure which shows another example of the registration state of the connection register | resistor RGSTc provided in the smart phone, (B) is an illustration figure which shows another example of the display state of the LCD monitor provided in the smart phone. . (A) is an illustration figure which shows another example of the registration state of the connection register | resistor RGSTc provided in the smart phone, (B) is an illustration figure which shows another example of the display state of the LCD monitor provided in the smart phone. . It is an illustration figure which shows another example of the display state of the LCD monitor provided in the smart phone. FIG. 3 is a flowchart showing a part of the operation of the camera CPU shown in FIG. 1 or FIG. 2. It is a flowchart which shows a part of other operation | movement of camera CPU shown in FIG. It is a flowchart which shows a part of other operation | movement of camera CPU shown in FIG. 1 or FIG. FIG. 5 is a flowchart showing still another part of the operation of the camera CPU shown in FIG. 1 or FIG. It is a flowchart which shows a part of other operation | movement of camera CPU shown in FIG. It is a flowchart which shows a part of other operation | movement of camera CPU shown in FIG. 1 or FIG. FIG. 5 is a flowchart showing still another part of the operation of the camera CPU shown in FIG. 1 or FIG. It is a flowchart which shows a part of operation | movement of smart phone CPU shown in FIG. It is a flowchart which shows another part of operation | movement of smart phone CPU shown in FIG. It is a flowchart which shows a part of other operation | movement of smart phone CPU shown in FIG. FIG. 10 is a flowchart showing yet another portion of the operation of the smartphone CPU shown in FIG. 3. It is a flowchart which shows another part of operation | movement of smart phone CPU shown in FIG. It is a flowchart which shows the part of operation | movement of smart phone CPU shown in FIG. It is a block diagram which shows an example of a structure of the digital camera which forms the camera system of the other Example of this invention. It is a block diagram which shows another example of a structure of the digital camera which forms the camera system of the other Example of this invention. It is an illustration figure which shows an example of a structure of the residual amount register | resistor applied to the digital camera of the other Example of this invention. It is an illustration figure which shows an example of a structure of the camera battery register applied to the smart phone of the other Example of this invention. It is an illustration figure which shows an example of a battery residual amount display screen. It is an illustration figure which shows the order of each process execution of a digital camera and a smart phone. It is a flowchart which shows a part of operation | movement of camera CPU applied to the other Example of this invention. It is a flowchart which shows a part of other operation | movement of camera CPU applied to the other Example of this invention. It is a flowchart which shows a part of other operation | movement of camera CPU applied to the other Example of this invention. It is a flowchart which shows a part of operation | movement of smart phone CPU applied to the other Example of this invention. It is a flowchart which shows a part of other operation | movement of smart phone CPU applied to the other Example of this invention. It is a flowchart which shows a part of other operation | movement of smart phone CPU applied to the other Example of this invention. It is a flowchart which shows a part of others of operation | movement of smart phone CPU applied to the other Example of this invention. It is a flowchart which shows a part of other operation | movement of smart phone CPU applied to the other Example of this invention. It is a block diagram which shows the basic composition of one Example of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
[Basic configuration]

  Referring to FIG. 42, the electronic apparatus of this embodiment is basically configured as follows. The first establishment means 1 establishes a connection with a desired camera among one or more cameras in a disconnected state. The second establishment means 2 establishes a connection with the issuer of the specific notification in response to the specific notification issued from any one of one or two or more cameras that are in a disconnected state. The request unit 3 requests the camera that satisfies the predetermined condition among the one or more cameras established by the first establishment unit 1 and / or the second establishment unit 2 to pause. The release unit 4 releases the connection with the request destination of the request unit 3 in connection with the processing of the request unit 3.

When the camera whose connection is established by the first establishment unit 1 satisfies the predetermined condition, the request unit 3 requests the camera to pause, and the release unit 4 releases the connection with the request destination. When the disconnected camera returns from the hibernation state and issues a specific notification, the connection with the issuer is established by the second establishing means 2. Thus, connection / disconnection with the camera is adaptively controlled in consideration of satisfaction / non-satisfaction of the predetermined condition. This improves the performance related to connection control with the camera.
[Example]

  The camera system of this embodiment includes one or more digital cameras 10 each configured as shown in FIG. 1 or 2 and one or more smartphones 50 each configured as shown in FIG. And formed by. Each of the digital camera 10 and the smartphone 50 has a short-range wireless communication function according to the AdHoc method or the Wi-FiDirect method. Note that the short-range wireless communication is executed by the communication I / F 42 shown in FIG. 1 or 2 and the communication I / F 64 shown in FIG.

  When the digital camera 10 and the smartphone 50 are turned on, the camera operation function of the smartphone 50 is activated, and the smartphone 50 is moved to the vicinity of the digital camera 10, live image data representing a scene photographed by the digital camera 10 is obtained. It is transferred to the smartphone 50 by short-range wireless communication (see FIG. 4). When a zoom operation is performed on the smartphone 50, a zoom instruction is given to the digital camera 10 by short-range wireless communication, and the zoom magnification is changed in response thereto. Further, when an imaging operation is performed on the smartphone 50, an imaging instruction is given to the digital camera 10 by short-range wireless communication. Still image data representing a scene at the time when an imaging instruction is given is transferred from the digital camera 10 to the smartphone 50 by short-range wireless communication.

  The digital camera 10 shown in FIG. 1 is assumed to be taken by a general consumer and photograph a desired scene at home or travel destination. In contrast, the digital camera 10 shown in FIG. 2 is assumed to be installed at a plurality of positions in a tourist spot such as a theme park and observe fixed points. Therefore, in comparison with the digital camera 10 shown in FIG. 1, the key input device 34, the LCD driver 28, and the LCD monitor 30 are omitted in the digital camera 10 shown in FIG.

  The digital camera 10 shown in FIG. 2 is mounted on a radio controlled car, a radio controlled airplane, a rock climber's helmet or an animal, or embedded in a ball for ball games in order to shoot an unusual scene. Also good. The digital camera 10 shown in FIG. 2 may also be installed in a refrigerator for managing cold objects, or attached to a security guard's flashlight for photographing the security area.

  Referring to FIG. 1 or 2, digital camera 10 includes a zoom lens 12, a focus lens 14, and a diaphragm mechanism 16 that are driven by drivers 20a, 20b, and 20c, respectively. The optical image that has passed through these members is irradiated onto the imaging surface of the imaging device 18 and subjected to photoelectric conversion. As a result, a charge representing the scene captured on the imaging surface is generated.

  The camera CPU 32 executes a plurality of tasks including a camera-side imaging control task, a camera-side display control task, a response processing task, a camera-side connection control task, and a camera-side communication control task in parallel on the multitask OS. It is. Control programs corresponding to these tasks are stored in the flash memory 40. The camera side display control task is omitted in the digital camera 10 shown in FIG.

  When the power is turned on, the camera side imaging control task instructs the driver 20d to repeat the exposure operation and the charge readout operation in order to start the moving image capturing process. In response to a vertical synchronization signal Vsync periodically generated from an SG (Signal Generator) (not shown), the driver 20d exposes the imaging surface and reads out the charges generated on the imaging surface in a raster scanning manner. From the imaging device 18, raw image data based on the read charges is periodically output.

  The camera processing circuit 22 performs processing such as color separation, white balance adjustment, and YUV conversion on the raw image data output from the imaging device 18, and the YUV format image data generated thereby is stored in the SDRAM 26 through the memory control circuit 24. Write in the YUV image area 26a.

  In the digital camera 10 shown in FIG. 1, the camera side display control task instructs the LCD driver 28 to start the moving image display process. The LCD driver 28 repeatedly reads out the image data stored in the YUV image area 26a through the memory control circuit 24, and drives the LCD monitor 30 based on the read image data. As a result, a live image representing a scene captured on the imaging surface is displayed on the monitor screen.

  The image data created by the camera processing circuit 22 is also given to the camera CPU 32. The camera-side imaging control task performs simple AE processing on the given image data to calculate an appropriate EV value, and sets the aperture amount and the exposure time that define the calculated appropriate EV value in the drivers 20c and 20d, respectively. As a result, the brightness of the image data is adjusted appropriately.

  When the zoom button 34z provided in the key input device 34 illustrated in FIG. 1 is operated, the camera side imaging control task instructs the driver 20a to execute the zoom process. The zoom lens 12 is moved in the zoom-in direction or the zoom-out direction by the driver 20a, thereby changing the magnification of the image data.

  When the shutter button 34 sh provided in the key input device 34 shown in FIG. 1 is operated, the camera side display control task instructs the LCD driver 28 to interrupt the moving image display process. As a result, the display on the LCD monitor 30 is updated from the live image to the black image.

  On the other hand, the camera-side imaging control task performs strict AE processing on the image data output from the camera processing circuit 22 to calculate the optimum EV value, and sets the aperture amount and exposure time defining the calculated optimum EV value to the driver 20c. And 20d, respectively. The brightness of the image data is adjusted to an optimum value. Subsequently, the camera-side imaging control task executes AF processing with reference to the high-frequency component of the image data output from the camera processing circuit 22. The focus lens 14 is placed at the focal point by the driver 20b, and thereby the sharpness of the image data is improved.

  When the AF process is completed, the camera-side imaging control task executes the still image capturing process and commands the memory I / F 36 to execute the recording process. One frame of image data representing the scene at the time when the AF process is completed is saved in the still image area 26b of the SDRAM 26 by the still image capturing process. The memory I / F 36 instructed to execute the recording process reads the image data saved in the still image area 26 b through the memory control circuit 24 and records an image file containing the read image data on the recording medium 38. .

  The camera-side display control task instructs the LCD driver 28 to resume the moving image display process after the recording process is completed. The LCD driver 28 resumes reading the image data stored in the YUV image area 26a, and as a result, the display on the LCD monitor 30 is returned to the live image.

  With reference to FIG. 3, smartphone 50 includes an antenna 52 for mobile communication and a wireless communication module. If the transmitted / received data is call voice data, the received voice is output from the speaker 56 and the transmitted voice is captured by the microphone 58. If the transmission / reception data is image data, this data is processed under the control of the smartphone CPU 60.

  The target image data is written into the SDRAM 68 through the memory control circuit 66. The LCD driver 70 reads the image data stored in the SDRAM 68 through the memory control circuit 66, and drives the LCD monitor 72 based on the read image data. As a result, a corresponding image is displayed on the monitor screen. A touch operation on the monitor screen is detected by a touch sensor 78. The detection result is given to the smartphone CPU 60, and different processes are executed under the control of the smartphone 60 according to the mode of the touch operation.

  The smartphone CPU 60 is also a processor that executes a plurality of tasks in parallel on the multitask OS. As tasks to be executed, a search processing task, a phone side connection control task, a phone side communication control task, a phone side display control task, and a phone side imaging control task are prepared. Control programs corresponding to these tasks are stored in the flash memory 62.

  In the smartphone 50, the search processing task executes a process for initializing the search register RGSTs and a process for issuing a response request shown in FIG. 6A every time a search cycle (= 10 seconds) arrives. The issued response request describes its own phone ID, and the response request is issued from the communication I / F 64 by the broadcast method.

  When the response request is received by the communication I / F 42 of the digital camera 10, the response processing task returns an ACK through the communication I / F 42. The returned ACK describes the camera ID for identifying itself and the requesting phone ID. The digital camera 10 belongs to one of a plurality of predefined groups, and a group ID for identifying the group to which the digital camera 10 belongs is assigned to the digital camera 10. This group ID is added to the camera ID described in ACK in an expanded manner.

  When the ACK describing its own phone ID is received by the communication I / F 64 of the smartphone 50, the search processing task extracts the camera ID described in the received ACK, and uses the extracted camera ID as the search register RGSTs. Register with. The group ID added to the camera ID in an expanded manner is registered in the search register RGSTs corresponding to the camera ID.

  The camera ID and group ID are registered in the search register RGSTs, for example, as shown in FIG. According to FIG. 7, camera IDs “CM_A” to “CM_H” are described in eight columns of the register RGSTs, respectively. Further, a group ID “GP_X” is assigned to each of the camera IDs “CM_A” to “CM_D”, a group ID “GP_Y” is assigned to each of the camera IDs “CM_E” to “CM_F”, and a camera ID “CM_G” is assigned. A group ID “GP_Z” is assigned to each of “˜CM_H”.

  When at least one camera ID is registered in the search register RGSTs in this way, the phone side connection control task instructs the LCD driver 70 to display the group menu. The LCD driver 70 detects one or more group IDs from the search register RGSTs, and displays the detected group IDs on the LCD monitor 72 as a group menu.

  When the camera ID and group ID are registered in the search register RGSTs as shown in FIG. 7, the group menu is displayed on the LCD monitor 72 as shown in FIG. The group menu is formed by three items “group X”, “group Y”, and “group Z”.

  When a touch operation (= group selection operation) for selecting one of the displayed group IDs is detected by the touch sensor 78, the phone side connection control task initializes the connection register RGSTc shown in FIG. And issues a connection request through the communication I / F 64. The issued connection request describes its own phone ID and specification information, and further describes one or more camera IDs described in the search register RGSTs corresponding to the selected group ID. As the specification information, for example, the resolution of the LCD monitor 72 is assumed.

  When the connection request issued from the smartphone 50 is received by the communication I / F 42 of the digital camera 10, the camera side connection control task executes an authentication process on the received connection request. If the connection with the requesting smartphone 50 is approved as a result of the authentication processing, the camera side connection control task transmits an ACK in which the camera ID of the camera and the requesting phone ID are described through the communication I / F 42. .

  Subsequently, the camera-side connection control task extracts the request source phone ID and specification information from the connection request, and registers the extracted phone ID and specification information in the register RGST1 shown in FIG. Furthermore, when the number of phone IDs registered in the register RGST1 is updated from “0” to “1”, the camera-side connection control task notifies other tasks of establishment of the connection with the smartphone 50.

  Upon receiving this notification, the camera-side display control task interrupts the display of the live image on the LCD monitor 30. The display on the LCD monitor 30 is updated from a live image to a black image in response to the connection with the smartphone 50.

  The camera side connection control task also issues a response request through the communication I / F 42 every time the confirmation cycle (= 5 seconds) arrives. The issued response request describes its own camera ID and one or more phone IDs registered in the register RGST1.

  When this response request is received by the communication I / F 64 of the smartphone 50, the phone side connection control task determines that the phone ID that matches its own phone ID and the camera that matches any camera ID registered in the connection register RGSTc. An ACK is returned only when the ID is described in the response request. The returned ACK describes its own phone ID and the requesting camera ID.

  In the digital camera 10, the camera-side connection control task refers to the reception status of the ACK returned in this way, and specifies the smartphone 50 that can no longer maintain the connection. The identified phone ID and specification information of the smartphone 50 are deleted from the register RGST1.

  As a result of the deletion, when the number of phone IDs registered in the register RGST1 is updated from “1” to “0”, the camera side connection control task notifies the other task of the release of the connection with the smartphone 50. Upon receiving this notification, the camera-side display control task resumes displaying the live image on the LCD monitor 30. The display on the LCD monitor 30 is updated from a black image to a live image in response to the release of the connection with the smartphone 50.

  A live image representing a scene captured by the digital camera 10 is displayed on the LCD monitor 72 of the connected smartphone 50 (details will be described later). When a disconnection operation specifying the displayed live image is performed, the phone side connection control task issues a disconnection request in which the camera ID for identifying the transmission source of the specified live image and its own phone ID are described. It transmits through communication I / F64. The camera ID that identifies the transmission source of the designated live image is then deleted from the connection register RGSTc.

  When the non-connection request issued from the smartphone 50 is received by the communication I / F 42 of the digital camera 10, the camera-side connection control task deletes the request source phone ID and specification information from the register RGST1. When the number of phone IDs registered in the register RGST1 is updated from “1” to “0”, the display of the live image on the LCD monitor 30 is resumed as described above.

  When at least one phone ID is registered in the register RGST1, the camera side communication control task instructs the communication I / F 42 to start the moving image transfer process. The camera-side communication control task also selects a specification representing the minimum quality from one or more specifications registered in the register RGST1, and sets the transfer image quality conforming to the selected specification in the communication I / F 42. The transfer quality set in the communication I / F 42 is updated every time the description of the register RGST1 is updated in the range where the number of registered camera IDs is “1” or more.

  The communication I / F 42 periodically reads the image data stored in the YUV image area 26a through the memory control circuit 24, and adjusts the quality of the read image data with reference to the transfer image quality set as described above. Then, the image data having the adjusted quality is transferred to the smartphone 50 as live image data. Note that the broadcast method is adopted as the transfer method. Further, one or more camera IDs registered in the register RGST1 are embedded in the live image data to be transferred. When the description of the register RGST1 is updated, the camera ID embedded in the live image data is also updated.

  Therefore, when the single digital camera 10 and the single smartphone 50 are connected to each other, the live image data is transferred from the digital camera 10 to the smartphone 50 in the manner shown in FIG. Further, when the single digital camera 10 and each of the plurality of smartphones 50, 50,... Are connected to each other, the live image data is transferred from the digital camera 10 to the smartphone 50 in the manner shown in FIG.

  When at least one camera ID is registered in the connection register RGSTc, the phone side communication control task starts reception of live image data in which a camera ID matching the camera ID described in the connection register RGSTc is embedded. A corresponding command is given to the communication I / F 64. The phone side communication control task also measures the reception intensity of the live image data received by the communication I / F 64 (strictly, the intensity of the radio wave corresponding to the live image data) for each transmission source (= for each camera ID), The arrangement of the received live image data is determined for each transmission source (= each camera ID). According to the determined arrangement, the live image data is arranged in descending order of the measured reception intensity.

  The live image data received by the communication I / F 64 is given to the memory control circuit 66. The memory control circuit 66 writes the given live image data in the SDRAM 68 with reference to the arrangement determined in the above manner.

  The phone-side communication control task also detects the transmission source of live image data (= live image data that cannot be received) whose reception intensity is equal to or less than the reference every time the confirmation cycle (= 3 seconds) arrives. The camera ID that identifies the detected transmission source is deleted from the connection register RGSTc. The reception mode of the live image data by the communication I / F 64 reflects the description of the connection register RGSTs after the deletion process. The reception of live image data is stopped when the number of camera IDs registered in the connection register RGSTc is updated from “1” to “0”.

  When the reception of live image data is started by the phone side communication control task, the phone side display control task instructs the LCD driver 70 to start displaying the live image. The LCD driver 70 reads the live image data stored in the SDRAM 68 through the memory control circuit 66 and drives the LCD monitor 72 based on the read live image data. As a result, one or more live images are displayed on the monitor screen in the order according to the reception intensity.

  When four digital cameras 10, 10,... Belonging to the group X are connected to the smartphone 50, the camera ID is described in the connection register RGSTc, for example, as shown in FIG. When the reception intensity of the live image data received by the communication I / F 64 decreases in the order of “CM_A” → “CM_B” → “CM_C” → “CM_D”, the four live images LV_A, LV_B, LV_C, and LV_D are: It is displayed on the LCD monitor 72 in the manner shown in FIG.

  The live image LV_A is an image based on live image data in which the camera ID “CM_A” is embedded, and the live image LV_B is an image based on live image data in which the camera ID “CM_B” is embedded. The live image LV_C is an image based on live image data in which the camera ID “CM_C” is embedded, and the live image LV_D is an image based on live image data in which the camera ID “CM_D” is embedded.

  Thereafter, when the reception intensity of the live image data in which the camera ID “CM_B” is embedded is lower than the reception intensity of the live image data in which the camera ID “CM_D” is embedded, the display state of the LCD monitor 72 is as shown in FIG. The state is updated to the state of FIG. According to FIG. 12B, the four live images are arranged in the order of LV_A → LV_C → LV_D → LV_B. At this time, the description of the connection register RGSTc remains the same (see FIG. 11A).

  However, if the reception intensity of the live image data in which the camera ID “CM_B” is embedded is below the reference at the time of the next confirmation cycle, the camera ID “CM_B” is obtained from the connection register RGSTc as shown in FIG. Deleted. As a result of the deletion, reception of live image data in which the camera ID “CM_B” is embedded is stopped, and the live image LV_B disappears from the LCD monitor 72 as shown in FIG.

  When an operation for selecting any one of the live images displayed on the LCD monitor 72 (= image selection operation) is performed, the phone side display control task instructs the LCD driver 70 to enlarge the selected live image. The LCD driver 70 executes processing according to the command, and as a result, the selected live image is enlarged. When the selection canceling operation is performed in the enlarged display state, the phone side display control task instructs the LCD driver 70 to end the enlarged display. The LCD driver 70 executes processing according to the command, and as a result, the size of the enlarged live image is returned to the original size.

  When an operation for selecting the live image LV_A is performed in the state shown in FIG. 13B, the live image LV_A is enlarged and displayed as shown in FIG. The enlarged live image LV_A disappears from the LCD monitor 72 in response to the selection cancellation operation. The display state returns from the state of FIG. 14 to the state of FIG.

  When the display of the live image is started by the phone-side display control task, the phone-side imaging control task starts accepting a zoom operation and an imaging operation. Here, the zoom operation corresponds to an operation of pinching in or out of a desired live image, and the imaging operation corresponds to an operation of touching the desired live image twice in succession.

  When a zoom operation is performed on a desired live image displayed on the LCD monitor 72, the phone side imaging control task issues a zoom instruction through the communication I / F 64. In the issued zoom instruction, zoom magnification information according to the pinch-in operation or pinch-out operation, the camera ID of the source of the desired live image, and the own phone ID are described.

  When the zoom instruction issued from the smartphone 50 is received by the communication I / F 42, the camera-side imaging control task determines that the camera ID described in the zoom instruction matches the own camera ID and the phone described in the zoom instruction. The zoom process is executed on the condition that the ID matches any phone ID registered in the register RGST1. The zoom lens 12 is moved in the zoom-in direction or the zoom-out direction by the driver 20a. As a result, the magnification of the desired live image displayed on the LCD monitor 72 of the smartphone 50 changes.

  When an imaging operation is performed on a desired live image displayed on the LCD monitor 72, the phone-side imaging control task issues an imaging instruction through the communication I / F 64. In the issued imaging instruction, the camera ID of the transmission source of the desired live image and the own phone ID are described. The imaging instruction is transmitted to the digital camera 10 in the manner shown in FIG. 9 or FIG. The phone side imaging control task also instructs the LCD driver 70 to interrupt the display of a desired live image after issuing the imaging instruction. As a result, the desired live image is updated to a black image.

  By updating the display image from the live image to the black image, the user of the smartphone 50 can visually recognize that the imaging instruction has been issued. When the still image acquired from the digital camera 10 is displayed on the LCD monitor 70 for preview, if the display of the black image is omitted, the display on the LCD monitor 70 is updated from the live image to the still image, This may confuse the user of the smartphone 50. The display of the black image also brings an advantage of avoiding confusion of the user of the smartphone 50 when displaying a still image as a preview.

  When the imaging instruction issued from the smartphone 50 is received by the communication I / F 42, the camera-side imaging control task causes the camera ID described in the imaging instruction to match the own camera ID and the phone described in the imaging instruction. A series of processes including a strict AE process, an AF process, and a still image capturing process is executed on condition that the ID matches one of the phone IDs registered in the register RGST1.

  When the still image capturing process is completed, the camera side communication control task instructs the communication I / F 42 to transfer the still image data acquired thereby. The communication I / F 42 reads the still image data saved in the still image area 26b through the memory control circuit 24, and transfers the read still image data to the issuer of the imaging instruction. Here, the unicast method is adopted as the transfer method, and the phone ID of the issuer of the imaging instruction is embedded in the transferred still image data.

  When the still image data from the issue destination of the imaging instruction is received by the communication I / F 64, the phone side imaging control task instructs the memory I / F 74 to record the received still image data. The received still image data is recorded in the flash memory 74 in a file format by the memory I / F 74. When the recording is completed, the phone side imaging control task gives the LCD driver 70 resumption of display of the interrupted live image. As a result, display of a desired live image is resumed.

  When the shutter button 34sh is operated in a state where the digital camera 10 and the smartphone 50 are connected, the still image data acquired by the still image capturing process is recorded on the recording medium 38 by the memory I / F 42.

  In relation to the processing of the camera CPU 32, the camera side imaging control task is configured as shown in FIG. 15, the camera side display control task is configured as shown in FIG. 16, and the response processing task is configured as shown in FIG. The camera side connection control task is configured as shown in FIGS. 18 to 19, and the camera side communication control task is configured as shown in FIGS. Here, the task priority decreases in the order of camera-side imaging control task → camera-side communication control task → camera-side display control task → response processing task → camera-side connection control task. As described above, the camera-side display control task shown in FIG. 16 is omitted in the digital camera 10 shown in FIG.

  Referring to FIG. 15, in step S1, the moving image capturing process is started. As a result, raw image data representing a scene captured on the imaging surface is periodically output from the imaging device 18, and corresponding YUV format image data is periodically output from the camera processing circuit 22.

  In step S3, an imaging instruction (a camera ID that matches the camera ID of the camera and a phone ID that matches any phone ID registered in the register RGST1 is issued by operating the shutter button 34sh or from the smartphone 50). It is determined whether or not a logical sum condition that the communication I / F 42 is received) is satisfied. If a determination result is NO, it will progress to step S5 and will perform a simple AE process. As a result, the brightness of the image data output from the camera processing circuit 22 is adjusted appropriately.

  In step S7, the zoom button 34z is operated or a zoom instruction issued from the smartphone 50 (a camera ID that matches the own camera ID and a phone ID that matches any phone ID registered in the register RGST1). It is determined whether or not a logical OR condition that the communication I / F 42 is received) is satisfied. If the determination result is NO, the process directly returns to step S3, whereas if the determination result is YES, the zoom process is performed in step S9, and then the process returns to step S3. As a result of the zoom process, the zoom lens 12 moves in the zoom-in direction or the zoom-out direction, and the magnification of the image data output from the camera processing circuit 22 changes.

  If the decision result in the step S3 is YES, a strict AE process is executed in a step S11, and an AF process is executed in a step S13. The brightness of the image data is adjusted to an optimum value by the strict AE process, and the sharpness of the image data is improved by the AF process. When the process of step S13 is completed, a still image capturing process is executed in step S15. One frame of image data representing a scene at the time when AF processing is completed is saved as still image data from the YUV image area 26a to the still image area 26b.

  In step S17, it is determined whether or not the trigger for updating the determination result in step S3 from NO to YES is an operation of the shutter button 34sh. If the determination result is NO, that is, if the trigger is an imaging instruction from the smartphone 50, the process directly returns to step S3. On the other hand, if the determination result is YES, that is, if the trigger is an operation of the shutter button 34sh, the memory I / F 36 is commanded to execute the recording process in step S19.

  The memory I / F 36 reads the still image data saved in the still image area 26b through the memory control circuit 24 and records an image file containing the read still image data on the recording medium 38. When the recording process is completed, the process returns to step S3.

  Referring to FIG. 16, in step S21, the moving image display process is started. As a result, a live image representing a scene captured on the imaging surface is displayed on the LCD monitor 30. In step S23, it is determined whether or not the shutter button 34sh has been operated. In step S25, it is determined whether or not a connection with at least one smartphone 50 has been established. The determination process in step S25 is executed based on the notification issued in step S63 described later.

  When the determination result in step S23 is updated from NO to YES, the moving image display process is interrupted in step S27. The display on the LCD monitor 30 is updated from a live image to a black image. In step S29, it is determined whether or not the recording process in step S19 shown in FIG. 15 is completed. When the determination result is updated from NO to YES, the moving image display process is restarted in step S31, and then the process returns to step S23.

  When the determination result in step S25 is updated from NO to YES, the moving image display process is interrupted in step S23. The display on the LCD monitor 30 is updated from a live image to a black image, as described above. In step S35, it is determined whether or not the connection with all the smartphones 50, 50,. This determination processing is executed based on the notification issued in step S77 described later. When the determination result is updated from NO to YES, the process returns to step S23 through the process of step S31.

  With reference to FIG. 17, it is discriminate | determined by step S41 whether the response request | requirement was received by communication I / F42. When the determination result is updated from NO to YES, the process proceeds to step S43, and ACK is returned through the communication I / F 42. The received response request describes the phone ID that identifies the requesting smartphone 50, and the ACK returned in step S43 describes the camera ID that identifies itself and the requesting phone ID. When the return process is completed, the process returns to step S41.

  The digital camera 10 belongs to one of a plurality of predefined groups, and a group ID for identifying the group to which the digital camera 10 belongs is assigned to the digital camera 10. This group ID is added to the camera ID described in ACK in step S43 in an expanded manner.

  Referring to FIG. 18, in step S <b> 51, it is determined whether or not a connection request issued from a neighboring smartphone 50 has been received by the communication I / F 42. In the connection request, specification information indicating the specification of the requesting smartphone 50 is described in addition to the requested camera ID and the requesting phone ID. If the decision result in the step S51 is YES, an authentication process is executed in a step S53. In step S55, it is determined whether or not the connection with the requesting smartphone 50 has been approved based on the result of the authentication process. If the determination result is NO, the process returns to step S51, whereas if the determination result is YES, step S57. Proceed to

  In step S57, an ACK describing its own camera ID and the requesting phone ID is transmitted through the communication I / F 42. In step S59, the request source phone ID and specification information are extracted from the connection request, and the extracted phone ID and specification information are registered in the register RGST1. In step S61, it is determined whether or not the number of phone IDs registered in the register RGST1 is “1”. If the determination result is NO, the process returns to step S51, whereas if the determination result is YES, the process proceeds to step S63. . In step S63, the establishment of the connection with the smartphone 50 is notified to other tasks. When the notification is completed, the process returns to step S51.

  If the decision result in the step S51 is NO, it is judged in a step S65 whether or not at least one phone ID is registered in the register RGST1. If a determination result is NO, it will return to Step S51, and if a determination result is YES, it will progress to Step S67.

  In step S <b> 67, it is determined whether or not a non-connection request issued from the connected smartphone 50 is received by the communication I / F 42. In the non-connection request, the request source phone ID and the request destination camera ID are described. Whether or not the requesting smartphone 50 is connected to itself is determined based on the description in the register RGST1 and the phone ID described in the non-connection request.

  If a determination result is YES, it will progress to step S69 and will delete phone ID and specification information of a request origin from register | resistor RGST1. In step S71, it is determined whether or not the number of phone IDs registered in the register RGST1 is “0”. If a determination result is NO, it will return to step S51 as it is. On the other hand, if a determination result is YES, it will progress to step S73 and will notify cancellation | release of the connection with the smart phone 50 to another task. When the notification is completed, the process returns to step S51.

  If the determination result in step S67 is NO, it is determined in step S75 whether or not a confirmation cycle (= 5 seconds) has come. If a determination result is YES, it will progress to step S77 and will issue a response request through communication I / F42. The issued response request describes its own camera ID and one or more phone IDs registered in the register RGST1.

  The smartphone 50 having the same phone ID as the phone ID described in the response request returns an ACK by the process of step S165 described later. In the returned ACK, the return source phone ID and the return destination camera ID are described. In step S79, referring to the reception status of the ACK returned in this manner, the smartphone 50 that cannot maintain the connection is specified. The identified phone ID and specification information of the smartphone 50 are deleted from the register RGST1 in step S69.

  With reference to FIG. 20, it is discriminate | determined by step S81 whether the connection with the at least 1 smart phone 50 was established. This determination process is executed based on the notification issued in step S63 described above. When the determination result is updated from NO to YES, the process proceeds to step S83 to command the communication I / F 42 to start the moving image transfer process. In step S85, a specification representing the minimum quality is selected from one or more specifications registered in the register RGTS1, and in step S87, a transfer image quality that conforms to the specification selected in step S85 is set in the communication I / F 42. To do.

  The communication I / F 42 periodically reads the image data stored in the YUV image area 26a through the memory control circuit 24, and adjusts the quality of the read image data with reference to the transfer image quality set in step S87. Then, the image data having the adjusted quality is transferred to the smartphone 50 as live image data. Note that the broadcast method is adopted as the transfer method. Further, one or more camera IDs registered in the register RGST1 are embedded in the live image data to be transferred. When the description of the register RGST1 is updated, the camera ID embedded in the live image data is also updated.

  In step S89, it is determined whether or not the description of the register RGST1 has been updated. In step S95, it is determined whether or not an imaging instruction has been given. Note that the imaging instruction to be noticed in step S95 is an instruction in which a camera ID that matches its own camera ID and a phone ID that matches any phone ID registered in the register RGST1 are described.

  If the determination result of step S89 is YES, it will be discriminate | determined based on the notification issued by the above-mentioned step S77 whether the connection with the smart phone 50 was cancelled | released. If a determination result is NO, it will return to Step S85, and if a determination result is YES, it will progress to Step S93. In step S93, the communication I / F 42 is commanded to stop moving image transfer processing, and then the process returns to step S81. As a result of the processing in step S93, the communication I / F 42 stops the broadcast transfer of live image data.

  When the determination result in step S95 is updated from NO to YES, it is determined in step S97 whether or not the above-described still image capturing process in step S15 is completed. When the determination result is updated from NO to YES, the process proceeds to step S99, and the communication I / F 42 is commanded to transfer the still image data to the issuer of the imaging instruction. The communication I / F 42 reads the still image data saved in the still image area 26b through the memory control circuit 24, and transfers the read still image data to the issuer of the imaging instruction. Here, the unicast method is adopted as the transfer method, and the phone ID that issued the imaging instruction is described in the transferred still image data. In step S101, it is determined whether or not the transfer of the still image data is completed. If the determination result is updated from NO to YES, the process returns to step S89.

  In relation to the processing of the smartphone CPU 60, the search processing task is configured as shown in FIG. 22, the phone side connection control task is configured as shown in FIGS. 23 to 24, and the phone side communication control task is shown in FIG. The phone side display control task is configured as shown in FIG. 26, and the phone side imaging control task is configured as shown in FIG.

  Referring to FIG. 22, in step S111, it is determined whether or not a search cycle (= 10 seconds) has come. When the determination result is updated from NO to YES, the search register RGSTs is initialized in step S113, and a response request describing its own phone ID is issued in step S115. The response request is issued in a broadcast manner through the communication I / F 64.

  In step S117, it is determined whether or not an ACK describing its own phone ID has been received by the communication I / F 64. In step S119, it is determined whether or not a timeout has occurred. If the determination result of step S119 is NO, it will return to step S117, and if the determination result of step S119 is YES, it will return to step S111.

  If the determination result in step S117 is YES, the return source ID described in the received ACK is extracted in step S121, and it is determined in step S123 whether or not the extracted return source ID is a camera ID. If a determination result is NO, it will return to step S117, and if a determination result is YES, it will progress to step S125. In step S125, the extracted camera ID is registered in the search register RGSTs. The group ID added to the camera ID in an expanded manner is registered in the register RGST2 corresponding to the camera ID. When registration is completed, the process returns to step S111.

  Referring to FIG. 23, in step S131, it is determined whether or not at least one camera ID is registered in search register RGSTs. If the determination result is YES, the LCD driver 70 is commanded to display a group menu in step S133. The LCD driver 70 detects one or more group IDs from the search register RGSTs, and displays the detected group IDs on the LCD monitor 72 as a group menu.

  In step S137, it is determined whether or not a touch operation (= group selection operation) for selecting any one of the displayed group IDs has been performed based on the output of the touch sensor 78. If the determination result is YES, step S137 is performed. While the process proceeds to S139, if the determination result is NO, the process returns to Step S131. If the determination result in step S131 is NO, the process advances to step S135 to instruct the LCD driver 70 to hide the group menu. As a result, the currently displayed group menu is hidden. When the process of step S135 is completed, the process returns to step S131.

  In step S139, the connection register RGSTc is initialized. In step S141, a connection request is issued through the communication I / F 64. The issued connection request describes its own phone ID and specification information, and further describes one or more camera IDs described in the search register RGSTs corresponding to the selected group ID. In step S143, it is determined whether or not an ACK describing its own phone ID has been received by the communication I / F 64. In step S145, it is determined whether or not a timeout has occurred. Note that the ACK noted in step S143 is an ACK returned in response to the connection request issued in step S141, and is distinguished from the ACK noted in step S117.

  If the determination result of step S145 is NO, it will return to step S143, and if the determination result of step S143 is YES, it will progress to step S147. In step S147, the camera ID described in the returned ACK is registered in the connection register RGSTc. Therefore, when a plurality of ACKs are returned in the period until timeout occurs, a plurality of camera IDs are registered in the connection register RGSTc.

  When the determination result in step S145 is updated from NO to YES, it is determined in step S149 whether or not at least one camera ID is registered in the connection register RGStc. If a determination result is NO, it will return to Step S131, and if a determination result is YES, it will progress to Step S151.

  In step S151, it is determined whether or not a disconnection operation has been performed. In step S159, it is determined whether or not the response request issued in step S77 described above has been received by the communication I / F 64. The non-connection operation is executed by designating one of one or two or more live images displayed on the LCD monitor 72 by processing in step S193 described later.

  If the determination result of step S151 is YES, it will progress to step S153 and will designate the digital camera 10 corresponding to the transmission source of the live image designated by the non-connection operation. In step S155, a non-connection request in which the camera ID of the designated digital camera 10 and its own phone ID are described is transmitted through the communication I / F 64. In step S157, the camera ID of the designated digital camera 10 is deleted from the connection register RGSTc. When the deletion is completed, the process returns to step S149.

  If the determination result in step S159 is YES, the camera ID described in the response request is detected in step S161. In step S163, it is determined whether or not the same camera ID as the detected camera ID is registered in the connection register RGSTc. If the determination result is NO, the process returns to step S149. If the determination result is YES, the process proceeds to step S165. move on. In step S165, an ACK describing its own phone ID and requesting camera ID is transmitted through the communication I / F 64. When the transmission is completed, the process returns to step S149.

  Referring to FIG. 25, in step S171, it is determined whether or not at least one camera ID is registered in connection register RGSTc. If the determination result is updated from NO to YES, the process proceeds to step S173. One or more digital cameras 10 registered in the connection register RGSTc start transmitting live image data through the process of step S83 described above. The transmitted camera ID is described in the transmitted live image data. In step S173, a corresponding command is sent to the communication I / F 64 in order to start receiving the live image data thus transmitted (live image data in which the camera ID matching the camera ID described in the connection register RGSTc is embedded). give.

  In step S175, the reception intensity of the live image data received by the communication I / F 64 (strictly, the intensity of the radio wave corresponding to the live image data) is measured for each transmission source (= each camera ID). In step S177, the arrangement of the received live image data is determined for each transmission source (= each camera ID). According to the determined arrangement, the live image data are arranged in descending order of the reception intensity measured in step S175.

  The live image data received by the communication I / F 64 is given to the memory control circuit 66. The memory control circuit 66 writes the given live image data in the SDRAM 68 with reference to the arrangement determined in step S177.

  In step S179, it is determined whether or not a confirmation cycle (= 3 seconds) has come. If the determination result is NO, the process returns to step S175, whereas if the determination result is YES, the process proceeds to step S181. In step S181, the digital camera 10 that transmits live image data whose reception intensity is equal to or lower than the reference (= live image data that cannot be received) is detected based on the measurement result in step S175. In step S183, the detected digital camera 10 camera is detected. The ID is deleted from the connection register RGSTc. The reception mode of the live image data by the communication I / F 64 reflects the description of the connection register RGSTs after the deletion process. In step S185, it is determined whether or not the number of camera IDs registered in the connection register RGSTc is “0”. If the determination result is NO, the process returns to step S175. If the determination result is YES, the process proceeds to step S187. move on. In step S187, the communication I / F 64 is instructed to stop receiving live image data, and then the process returns to step S171.

  Referring to FIG. 26, in step S191, it is determined whether or not reception of live image data is started by the process in step S173, and if the determination result is updated from NO to YES, the process proceeds to step S193. In step S193, a corresponding command is given to the LCD driver 70 to start displaying a live image. The LCD driver 70 reads the live image data stored in the SDRAM 68 through the memory control circuit 66 and drives the LCD monitor 72 based on the read live image data. As a result, one or more live images are displayed on the monitor screen in the order according to the reception intensity.

  In step S195, it is determined whether or not an image selection operation for selecting any one of the live images displayed on the monitor screen has been performed. If the determination result is NO, the process proceeds to step S203, and if the determination result is YES, the process proceeds to step S197. In step S197, the LCD driver 70 is instructed to enlarge the selected live image. The LCD driver 70 executes processing according to the command, and as a result, the selected live image is enlarged.

  In step S199, it is determined whether or not a selection canceling operation has been performed. If the determination result is NO, the process proceeds directly to step S203. If the determination result is YES, the LCD driver 70 is instructed to end enlargement display in step S201. To do. As a result of the processing in step S201, the size of the enlarged live image is returned to the original size. When the process of step S201 is completed, the process proceeds to step S203.

  In step S203, it is determined whether or not reception of live image data is stopped by the process of step S187. When the determination result is updated from NO to YES, the LCD driver 70 is commanded to stop displaying the live image in step S205, and then the process returns to step S191.

  Referring to FIG. 27, in step S211, it is determined whether or not live image display has been started by the process of step S193. When the determination result is updated from NO to YES, it is determined whether or not an imaging operation has been performed in step S213, and whether or not a zoom operation has been performed is determined in step S215. Here, the imaging operation corresponds to an operation of touching a desired live image twice in succession. The zoom operation corresponds to an operation for pinching in or pinching out a desired live image.

  When the determination result in step S215 is updated from NO to YES, the process proceeds to step S217, and a zoom instruction is issued to the transmission source of the desired live image. The zoom instruction is issued through the communication I / F 64. The issued zoom instruction describes zoom magnification information corresponding to the pinch-in operation or pinch-out operation, the camera ID of the issue destination, and the own phone ID. When the process of step S217 is completed, the process returns to step S211.

  If the determination result in step S213 is YES, an imaging instruction is issued to a desired live image transmission source. The imaging instruction is issued through the communication I / F 64, and the issued camera ID and the own phone ID are described in the issued imaging instruction. In step S221, a command corresponding to the LCD driver 70 is given to interrupt the display of a desired live image.

  In step S223, it is determined whether or not still image data from the issue destination of the imaging instruction has been received by the communication I / F 64. If the determination result is YES, the process proceeds to step S225 to instruct the memory I / F 74 to record the received still image data. The received still image data is recorded in the flash memory 74 in a file format by the memory I / F 74. When the recording is completed, the process proceeds to step S227. In step S227, a corresponding command is given to the LCD driver 70 in order to resume the display of the live image interrupted by the process of step S221. When the process of step S227 is completed, the process returns to step S211.

  As can be seen from the above description, in the smartphone 50, the smartphone CPU 60 searches for one or more digital cameras 10 that can be connected (S111 to S123), and determines one or more detected digital cameras 10 as one or more. Classify into two or more groups (S125, S131 to S133). When a group selection operation for selecting one of the classified one or two or more groups is performed, a connection is established with one or two or more digital cameras 10 belonging to the selected group (S137). , S141 ~ S147).

  The smartphone CPU 60 displays one or more live images output from the connected one or more digital cameras 10 on the LCD monitor 72 (S173, S193). The smartphone CPU 60 also changes the display mode of the live image every time the connection state with each digital camera 10 changes (S175 to S185), and further responds to an image selection operation for selecting one of the displayed live images. And change it (S195 to S197).

  The operability is improved by limiting the connected digital cameras 10 to a part of the digital cameras 10 based on the group selection operation. In addition, the display performance is improved by changing the display mode of the live image according to the connection state and / or the user operation.

  In the digital camera 10, the imaging device 18 repeatedly outputs raw image data corresponding to the optical image captured on the imaging surface. The camera CPU 32 transmits live image data based on the raw image data thus output to the plurality of smartphones 50, 50,... (S83), and receives a zoom instruction or an imaging instruction from any of the smartphones 50 (S3, S7). . The camera CPU 32 executes the zoom process according to the zoom instruction or the still image capturing process (camera side imaging control task) according to the imaging instruction in preference to the live image data transmission process (camera side communication control task) (S9, S15). . This improves the imaging performance.

  Note that, according to the processing in steps S75 to S79 and S69 shown in FIG. 19, the phone ID is deleted from the register RGST1 when the communication between the digital camera 10 and the smartphone 50 becomes poor due to temporary deterioration of the communication environment. Will be. Such a situation can be avoided by repeatedly issuing a response request and deleting the phone ID from the register RGST1 when no ACK is returned for any response request.

  Further, in this embodiment, the multitask OS and control programs corresponding to a plurality of tasks executed thereby are stored in advance in the flash memories 40 and 62, respectively. However, a part of the control program may be prepared as an internal control program in each of the flash memories 40 and 62 from the beginning, while another part of the control program may be acquired from the external server as an external control program. In this case, the external control program is acquired through each of the communication I / Fs 42 and 64. Further, the above-described operation is realized by cooperation of the internal control program and the external control program.

  In this embodiment, the process executed by each of the camera CPU 32 and the smartphone CPU 60 is divided into a plurality of tasks as described above. However, each task may be further divided into a plurality of small tasks, and a part of the divided plurality of small tasks may be integrated with other tasks. Further, when each task is divided into a plurality of small tasks, all or part of the tasks may be acquired from an external server.

Furthermore, the camera system of this embodiment can be modified as follows. Further, the following twenty-three modifications and the above-described embodiments may be integrated into one modification within a consistent range. That is, a modification in which the following twenty-three modifications and the above-described embodiment are integrated within a consistent range corresponds to the twenty-fourth modification.
[Modification 1]

A plurality of digital cameras 10, 10,... Are installed in a sightseeing spot, and the smartphone 50 is carried by a traveler who has visited this sightseeing spot. Each digital camera 10 is provided with an LED. The LCD monitor 72 of the smartphone 50 displays one or more camera IDs that identify each connectable digital camera 10 at a stage before connection. When one of the displayed camera IDs is selected by a traveler's operation, the LED of the digital camera 10 corresponding to the selected camera ID emits light. The digital camera 10 to be connected can be confirmed before connection, and the operability is improved.
[Modification 2]

The plurality of digital cameras 10, 10,... Have different specifications (imaging mode, live image data frame rate, still image data resolution, optical zoom magnification, electronic zoom capability, ISO sensitivity, white balance type, camera shake function, etc. And is present in a state where it can be connected to the smartphone 10. When initially connected to the smartphone 50, each digital camera 10 transmits its specification information to the smartphone 50. The smartphone 50 identifies the highest quality setting that can be set by any of the plurality of connected digital cameras 10, 10,..., And requests the plurality of digital cameras 10, 10,. As a result, common and high-quality live image data can be received from the plurality of digital cameras 10, 10,.
[Modification 3]

A single digital camera 10 is connected to a plurality of smart phones 50, 50,. The digital camera 10 is provided with an LED. The LED emission mode (= flashing period and / or emission color) is adjusted to be different depending on the number of smartphones 50, 50... Connected to the digital camera 10. The connection status (= congestion degree) of the smartphone 50 can be grasped using the LED light emission mode as a clue.
[Modification 4]

  When an imaging operation is performed toward the smartphone 50 connected to the digital camera 10, time information, position information, and altitude information at the time of the operation are detected by the smartphone 50. The detected time information, position information, and altitude information are described in an imaging instruction issued in response to the imaging operation. The digital camera 10 that has received the imaging instruction assigns time information, position information, and altitude information described in the imaging instruction to still image data created in response to the imaging instruction. There is no need to provide a clock circuit, a GPS device, and an altimeter in the digital camera 10.

Further, even when shooting environment information such as the orientation of the smartphone 50 at the time when the imaging operation is performed and the weather at the shooting location is detected using the function of the smartphone 50, the detected shooting environment information is described in the imaging instruction. Good. In this case, the shooting environment information described in this way is additionally allocated to the still image data.
[Modification 5]

The digital camera 10 is provided with a clock circuit that measures the local time. The local time measured by the clock circuit is assigned to the still image data created in response to the operation of the shutter button 34sh. When the digital camera 10 is connected to the smartphone 50, the standard time detected by the smartphone 50 is notified to the digital camera 10. The digital camera 10 calculates a difference between the notified local time and the notified standard time, and corrects the local time assigned to the still image data based on the calculated difference. As a result, a standard time is assigned to the still image data.
[Modification 6]

The smartphone 10 is connected to a plurality of digital cameras 10, 10,... Having different optical system specifications (aperture setting range, focus adjustment range, zoom magnification variable range). Each digital camera 10 notifies the smartphone 10 of optical system specifications and optical settings (aperture amount, number of focus steps, and number of zoom steps). The notification of the optical setting is executed every time the optical setting is changed. The smartphone 10 displays the notified specifications and optical settings on the LCD monitor 72 in a manner that allows comparison between cameras. The operability when adjusting the optical settings of the connected digital camera 10 is improved. As for the diaphragm, more preferably, the structure of the diaphragm mechanism such as the number of diaphragm blades and the shape of the diaphragm is additionally notified to the smartphone 50 as part of the specifications of the optical system.
[Modification 7]

As a zoom operation on the smartphone 50, an operation of defining a desired rectangular frame on the live image displayed on the LCD monitor 72 by a touch operation is assumed. If the rectangular frame defined by the touch operation has a distortion, the distortion is corrected to define an accurate rectangular frame. The zoom instruction issued to the digital camera 10 describes zoom magnification information for enlarging a part of the live image belonging to the rectangular frame thus defined. This improves the operability related to zooming.
[Modification 8]

Assume that a plurality of smartphones 50, 50,... Are connected to a single digital camera 10. The digital camera 10 assigns an identification number according to the connection order to each connected smartphone 50. The identification number assigned to the destination smartphone 50 is added to the live image data transferred from the digital camera 10 to each smartphone 50. In the live image displayed on the LCD monitor 72 of the smartphone 50, outer frame characters having different colors are multiplexed according to the identification numbers added in this way.
[Modification 9]

Assuming that a plurality of live images respectively transmitted from the plurality of digital cameras 10 are displayed on the LCD monitor 72, when any one of the live images is touched, the display of the touched live image is interrupted. Other live images are enlarged using the space secured by the interruption. As a result, it is possible to suppress the load applied to live image communication and to effectively use the LCD monitor 72.
[Modification 10]

  Assume that a plurality of smartphones 50, 50,... Are connected to a single digital camera 10. Each smartphone 50 notifies the digital camera 10 of imaging conditions (white balance, image finishing, image size, etc.) of the digital camera 10.

The digital camera 10 manages the notified imaging conditions for each smartphone 50. For example, for a certain smartphone 50, white balance: auto / image finishing: vivid / compressed image size: 16 MB, and for other smartphones 50, white balance: sunlight / image finishing: landscape / compressed image size: 2M Management that uses bytes is considered. When an imaging instruction is issued from any of the smartphones 50, the digital camera 10 acquires still image data with quality according to the imaging conditions notified from the issuing smartphone 50. Thereby, the quality of still image data can be adjusted adaptively.
[Modification 11]

  In a general digital camera including the above-described embodiment, when the smartphone 50 is connected, the battery consumption increases as compared to when the smartphone 50 is not connected. Based on this, the digital camera 10 may periodically issue battery remaining amount information to the connection-target smartphone 50, and may suspend the system when a suspension request is received from the smartphone 50. In addition, when the remaining amount of the battery increases due to charging, the digital camera 10 issues a connection enable notification to the smartphone 50 and receives a connection request from the smartphone 50. On the other hand, the smartphone 50 connected to the digital camera 10 displays the remaining battery level issued from the digital camera 10 on the LCD monitor 72 and pauses the digital camera 10 according to the operation of the operator of the smartphone 50 or the remaining battery level. Issue a request.

  In this case, the digital camera 10 shown in FIGS. 28 and 29 is used in place of the digital camera 10 shown in FIGS. Referring to FIGS. 28 and 29, digital camera 10 is provided with a battery 102, a power supply circuit 104, a SW group 106, and a voltage detection circuit 106.

  The power supply circuit 104 generates a plurality of DC power supplies each indicating a different voltage value based on the battery 102. A part of the plurality of generated DC power supplies is directly supplied to the sub CPU 44, and another part of the generated plurality of DC power supplies is supplied to the entire system via the main power switch 50. Therefore, while the sub CPU 44 is always activated, the elements constituting the entire system are activated / stopped in response to the on / off of the main power switch 50.

  When a power-on operation is performed by the power button 28 pw on the key input device 28, the sub CPU 44 controls the main power switch 50 to activate the entire system including the main CPU 26. The DC power output from the battery 102 is supplied to the power supply circuit 104. The power supply circuit 104 converts the DC power supplied from the battery 102 and generates a plurality of DC power supplies each having a different voltage value. The plurality of generated DC power supplies are supplied to the entire system through the SW group 106.

  When the power-on operation is performed, a part of the DC power generated by the power supply circuit 104 is supplied to the camera CPU 32, thereby starting the camera CPU 32. The camera CPU 32 periodically detects the remaining battery level through the voltage detection circuit 106 under the power control task.

  In this case, the digital camera 10 is provided with a remaining amount register RGSTr shown in FIG. The remaining amount register RGSTr corresponds to a register for holding the remaining amount of battery detected by the voltage detection circuit 106. The smartphone 50 is provided with a camera battery register RGSTb shown in FIG. The camera battery register RGSTb corresponds to a register for holding battery remaining amount information transmitted from the digital camera 10, and registers the camera ID of the transmission source and the remaining battery amount.

  In this modification, when the battery remaining amount display start operation is performed by the operator of the smartphone 50, the remaining battery amount display screen shown in FIG. On the battery remaining amount display screen, based on the battery remaining amount information transmitted from each of the digital cameras 10 connected to the smartphone 50, an icon indicating the remaining battery amount of the digital camera 10 is displayed together with each camera ID. The operator of the smartphone 50 can refer to the displayed remaining battery level, for example, specify the digital camera 10 with a low remaining battery level, and perform a pause operation to pause the designated digital camera 10.

  Referring to FIG. 33, from each of the digital cameras 10 connected to the smartphone 50, battery remaining amount information based on the detected battery remaining amount is periodically issued through the communication I / F 42. In addition to periodic transmission, battery remaining amount information is also issued when the detected remaining battery level is less than the threshold or when the change in the remaining amount exceeds the threshold. The issued battery remaining amount information describes its own camera ID, one or more phone IDs registered in the register RGST1, and the remaining battery amount registered in the remaining amount register RGSTr.

  When receiving the battery remaining amount information, the smartphone CPU 60 updates the registered content of the camera battery register RGSTb based on the received content regardless of whether or not the battery remaining amount display screen is being displayed.

  When there is a digital camera 10 whose remaining battery level is lower than the threshold value, a pause request is issued from the smartphone 50 through the communication I / F 64 regardless of whether the remaining battery level display screen is being displayed or not. publish. Similarly, when a pause operation is performed by the operator while the battery remaining amount display screen is displayed, a pause request is issued from the smartphone 50 through the communication I / F 64 to the digital camera 10 designated by the pause operation. Is done.

  The digital camera 10 that has received the pause request from the smartphone 50 sets the power supply to the entire system to a minimum by adjusting the SW group 106 after that, and shifts to the pause state.

  When the remaining battery level is recovered to a threshold value or more by charging the battery 102 while the system is in accordance with the suspension request from the smartphone 50, the digital camera 10 ends the suspension state and activates the system. After the system is restarted, a notification that connection is possible is issued through the communication I / F 42 to the smartphone 50 whose phone ID is described in the register RGST1 in order to notify that the connection is possible due to the recovery of the remaining battery level. .

  The smartphone 50 that has received the connectable notification issues a response request under the search processing task. When the digital camera 10 that has issued the connectable notification returns an ACK in response to the response request, the camera ID of the digital camera 10 is registered in the search register RGSTs as described above.

  The smartphone 50 also periodically searches for a newly registered digital camera 10 in the search register RGSTs. By this search, the digital camera 10 that issued the connection possible notification is detected, and a connection request is issued by the smartphone 50. When the digital camera 10 returns ACK in response to the connection request, the camera ID of the digital camera 10 is registered in the connection register RGSTc as described above, and the connection state of the smartphone 50 and the digital camera 10 is restored.

  In order to realize such processing, the camera CPU 32 executes the power control task shown in FIGS. 34 to 36 in parallel with other tasks. The power control task is executed with the lowest priority.

  The smartphone CPU 60 corrects a part of the flowchart shown in FIG. 22 and executes processing according to the flowchart shown in FIG. 37, and corrects a part of the flowchart shown in FIG. 24 and processes according to the flowchart shown in FIG. Execute. Further, the smartphone CPU 60 executes the camera power management task shown in FIGS. 39 to 41 in parallel with other tasks.

  Referring to FIG. 34, in step S301, flag FLG_b is initially set to “0”, and in step S303, it is determined whether or not it is a battery remaining amount confirmation cycle. If the determination result is NO, the process proceeds to step S305, and if the determination result is YES, the process proceeds to step S307. In step S305, it is determined whether or not a suspension request has been received from the smartphone 50. If the determination result in step S305 is NO, the process returns to step S303. If the determination result in step S305 is YES, the process proceeds to step S321.

  In step S307, the remaining battery level is detected through the voltage detection circuit 106. In step S309, it is determined whether or not the system is normally activated. If the determination result is NO, the process proceeds to step S327, and if the determination result is YES, it is determined in step S311 whether or not the battery remaining amount information issuance cycle.

  If the determination result in step S311 is YES, the process proceeds to step S317. If the determination result in step S311 is NO, it is determined in step S313 whether or not the remaining battery level detected in step S307 is below the threshold value TH1. If the determination result of step S313 is YES, it will progress to step S317, while if the determination result of step S313 is NO, it will progress to step S315.

  In step S315, it is determined whether or not the difference between the battery remaining amount detected last time registered in the battery remaining amount register RGSTr and the latest battery remaining amount detected in step S307 exceeds a threshold value TH2. If the determination result is YES, the process proceeds to step S317, while if the determination result is NO, the process proceeds to step S319.

  In step S317, battery remaining amount information is issued toward the smartphone 50 in which the phone ID is registered in the register RGST1. The issued battery remaining amount information describes the remaining battery amount detected in step S307 and the own camera ID. In step S319, the registration content of the remaining amount register RGSTr is updated based on the remaining battery amount detected in step S307.

  In step S321, other active tasks are stopped, and in step S323, the power supply to the entire system is set to a minimum by adjusting the SW group 106, and a transition is made to a dormant state. In step S325, the flag FLG_b is set to “1”, and then the process returns to step S303.

  In step S327, it is determined whether or not the remaining battery level detected in step S307 exceeds the threshold TH3. If the determination result is NO, the process returns to step S303, whereas if the determination result is YES, the process proceeds to step S329. In step S329, it is determined whether or not the flag FLG_b is set to “1”, that is, whether or not the system has entered the system hibernation state according to the hibernation request from the smartphone 50. If the determination result is NO, the process returns to step S303. On the other hand, if a determination result is YES, it will progress to Step S331.

  In step S331, the system in the hibernation state is activated. In step S333, in order to notify that the connection is possible due to the recovery of the remaining battery level, a connection enable notification is issued through the communication I / F 42 to the smartphone 50 whose phone ID is described in the register RGST1. In step S335, the flag FLG_b is set to “0”, and then the process returns to step S303.

  Referring to FIG. 37, if the determination result of step S111 is NO, the process proceeds to step S341. In step S341, it is determined whether or not a connectable notification is received from the digital camera 10. If the determination result is NO, the process returns to step S111, and if the determination result is YES, the process proceeds to step S113.

  Referring to FIG. 38, if the determination result of step S159 is NO, it is determined in step S351 whether or not the search cycle (= 5 seconds) has come. If the determination result is NO, the process returns to step S149, and if the determination result is YES, the process proceeds to step S353. In step S353, a new camera ID belonging to the group selected by the group selection operation is searched from the search register RGSTs. In step S355, it is determined whether or not a new camera ID has been detected. If the determination result is NO, the process directly returns to step S149, while if the determination result is YES, the process proceeds to steps S149 through S357 to S363. Return.

  In step S357, a connection request in which the own phone ID and specification information and the camera ID detected in step S353 are described is issued through the communication I / F 64. In step S359, it is determined whether or not an ACK describing its own phone ID has been received by the communication I / F 64. In step S361, it is determined whether or not a timeout has occurred.

  As described above, the ACK noted in step S359 is the ACK returned in response to the connection request issued in step S357, and is distinguished from the ACK noted in step S117.

  If the determination result of step S361 is NO, it will return to step S359, and if the determination result of step S359 is YES, it will progress to step S363. In step S363, the camera ID described in the returned ACK is registered in the connection register RGSTc. If the determination result of step S361 is updated by YES, it will return to step S149.

  Referring to FIG. 39, in step S371, it is determined whether or not a battery remaining amount display start operation has been performed by the operator of smartphone 50. If the determination result is NO, the process proceeds to step S387, while the determination result is YES. If there is, the process proceeds to step S373.

  In step S373, the battery remaining amount of the digital camera 10 is acquired with reference to the registered contents of the camera battery register RGSTb, and a battery remaining amount display screen is displayed on the LCD monitor 72 based on the acquired battery remaining amount in step S375.

  In step S377, it is determined whether or not a battery remaining amount display end operation has been performed by the operator of the smartphone 50. If the determination result is NO, the process proceeds to step S381, while if the determination result is YES, the battery remaining amount display screen is displayed. Is displayed on the LCD monitor 72 in step S379.

  In step S381, it is determined whether or not the camera battery register RGSTb has been updated. If the determination result is NO, the process proceeds to step S401. If the determination result is YES, the registration content of the camera battery register RGSTb is referred to and step S383 is performed. Thus, the remaining battery level of the digital camera 10 is acquired. The display of the remaining battery level is updated in step S385 based on the acquired remaining battery level, and then the process returns to step S377.

  In step S387, it is determined whether or not battery remaining amount information is received from the digital camera 10. If the determination result is NO, the process returns to step S371. If the determination result is YES, the battery remaining information is received. In step S389, the registered content of the camera battery register RGSTb is updated.

  In step S391, it is determined whether there is a digital camera 10 whose remaining battery level registered in the camera battery register RGSTb is lower than the threshold value TH4. If the determination result is NO, the process returns to step S371, while the determination result is YES. If so, the corresponding digital camera 10 is designated in step S393.

  In step S395, a pause request is issued to the digital camera 10 designated in step S393. The self-phone ID is described in the suspension request. For the digital camera 10 specified in step S393, the camera ID is deleted from the connection register RGSTc in step S397, and the remaining amount information is deleted from the camera battery register RGSTb in step S399. When the process of step S399 is completed, the process returns to step S371.

  In step S401, it is determined whether or not battery remaining amount information is received from the digital camera 10. If the determination result is NO, the process proceeds to step S407. If the determination result is YES, the battery remaining information is received. In step S403, the registered contents of the camera battery register RGSTb are updated.

  In step S405, it is determined whether there is a digital camera 10 whose remaining battery level registered in the camera battery register RGSTb is lower than the threshold value TH4. If the determination result is NO, the process proceeds to step S407, while the determination result is YES. If there is, the process proceeds to step S409.

  In step S407, it is determined whether or not a pause operation has been performed by the operator of the smartphone 50. If the determination result is NO, the process returns to step S377, whereas if the determination result is YES, the process proceeds to step S409. In step S409, the digital camera 10 corresponding to step S405 or step S407 is designated.

In step S411, a pause request is issued to the digital camera 10 designated in step S409. The self-phone ID is described in the suspension request. For the digital camera 10 specified in step S409, the camera ID is deleted from the connection register RGSTc in step S413, and the remaining amount information is deleted from the camera battery register RGSTb in step S415. When the process of step S415 is completed, the process returns to step S377.
[Modification 12]

In response to detection of anomalies in the vicinity of the digital camera 10 (input of an alarm from an alarm device, detection of movement in the visual field of the digital camera 10, change in surrounding sounds, detection of a specific subject such as a suspicious person or animal) Alternatively, the quality (frame rate and resolution) of live image data transferred from the digital camera 10 to the smartphone 50 is adjusted according to the time zone. The quality of the live image can be controlled adaptively.
[Modification 13]

It is assumed that a plurality of live images respectively transmitted from a plurality of digital cameras 10 are multi-displayed on the LCD monitor 72 of a single smartphone 50. When a touch operation or a pinch-in / out operation is simultaneously performed on at least two displayed live images, an imaging instruction or a zoom instruction is simultaneously issued to the transmission sources of the operated at least two live images. This improves operability.
[Modification 14]

  It is assumed that the live image transmitted from the digital camera 10 is displayed on the LCD monitor 72 of the smartphone 50, and the imaging operation is received in two stages on the displayed live image. Here, the first stage operation corresponds to an operation for instructing execution of the strict AE process and the AF process, and the second stage operation corresponds to an operation for instructing execution of a still image capturing process.

The digital camera 10 increases the quality (frame rate and resolution) of the live image data when receiving an instruction in response to the first-stage operation, and based on the quality of the live image data after the acquisition of the still image data is completed. return. This improves the visibility of the subject during the period from the first stage operation to the second stage operation.
[Modification 15]

Assume that one or more smartphones 50 are connected to the digital camera 10. At this time, the connectable smartphone 50 is limited to the smartphone 50 of the user who is within the field of view of the digital camera 10. Thereby, the operation of the digital camera 10 can be opened to only some users. The limitation is performed by the following method.
(Method 1)
Procedure 1: The smart phone 50 registers a user's face image.
Procedure 2: The smartphone 50 adds the registered face image to the connection request transmitted to the digital camera 10.
Procedure 3: The digital camera 10 searches a face part that matches the face image added to the connection request from the visual field, and establishes a connection with the requesting smartphone 50 when the matching face part is detected.
(Method 2)
Procedure 1: The smartphone 10 issues a connection request to the digital camera 50.
Procedure 2: The digital camera 10 transmits an authentication code such as a QR code (registered trademark) or a light emission pattern code to the smartphone 50.
Procedure 3: The smartphone 50 outputs the received authentication code. If the authentication code is a QR code (registered trademark), a QR code (registered trademark) image is displayed on the LCD monitor 72. If the authentication code is a light emission pattern code, the LED is blinked with a specific light emission pattern.
Procedure 4: The digital camera 10 establishes a connection with the smartphone 50 when the authentication code is detected from the visual field (when a QR code (registered trademark) image or a specific light emission pattern appears in the visual field).
[Modification 16]

  Assume that a plurality of digital cameras 10,... Are connected to a single smartphone 50. When the batch zoom-in operation or the batch zoom-out operation is continuously performed on the smartphone 50, the smartphone 50 continuously issues a zoom-in instruction or a zoom-out instruction to each digital camera 10.

  However, the zoom magnification may be different between cameras before the batch zoom-in operation or the batch zoom-out operation is accepted (for example, the zoom magnification of a certain digital camera 10 is set to 3.0 times, and other zoom magnification is different). (When the zoom magnification of the digital camera 10 is set to 2.0). Based on this, a zoom-in instruction or a zoom-out instruction is issued as follows.

  If the accepted operation is a batch zoom-in operation, the zoom-in instruction is issued in advance to the digital camera 10 set to a low zoom magnification. If the accepted operation is a batch zoom-out operation, a zoom-out instruction is issued in advance to the digital camera 10 set to a high zoom magnification. Thus, when the difference in zoom magnification is resolved, a zoom-in instruction or a zoom-out instruction is issued to all the digital cameras 10 simultaneously.

When the zoom specifications are different between cameras, the zoom-in instruction or zoom-out instruction issuance period is adjusted so that the zoom magnification fluctuation amount per unit time is the same between the cameras.
[Modification 17]

  A plurality of smartphones 50, 50,... Are connected to the digital camera 10. The digital camera 10 acquires still image data in response to an imaging instruction issued from any of the smartphones 50, and creates screen nail image data based on the acquired still image data. At this time, the digital camera 10 adjusts the resolution of the screen nail image data with reference to the specification of the smartphone 50 that issued the imaging instruction. As a result, the resolution of the screen nail image data increases as the resolution of the LCD monitor 72 provided in the smartphone 50 increases, and decreases as the resolution of the LCD monitor 72 provided in the smartphone 50 decreases.

Note that the live image data may be transmitted to each smartphone 50 by the unicast method, and the resolution of the transmitted live image data may be adjusted according to the specification of the destination smartphone 50.
[Modification 18]

A plurality of smartphones 50, 50,... Are connected to the digital camera 10. When an imaging instruction is given from any one of the smartphones 50 to the digital camera 10, the digital camera 10 accepts an imaging instruction from another smartphone 50 for a predetermined time (= for example, 1 second) thereafter. The digital camera 10 transmits the still image data acquired in response to the first imaging instruction to the other smartphones 50 that issued the imaging instruction at a predetermined time after that in addition to the smartphone 50 that issued the first imaging instruction. To do.
[Modification 19]

As an imaging mode set in the digital camera 10, a manual mode and an auto mode are prepared. The manual mode corresponds to a mode in which the imaging conditions are adjusted according to a user operation on the smartphone 50, and the auto mode corresponds to a mode in which the imaging conditions are adjusted uniformly. When a single smartphone 50 is connected to the digital camera 10, the digital camera 10 permits the smartphone 50 to switch the imaging mode between the manual mode and the auto mode. On the other hand, when a plurality of smartphones 50, 50,... Are connected to the digital camera 10, the digital camera 10 prohibits switching of the imaging mode and selects the auto mode fixedly.
[Modification 20]

It is assumed that a plurality of digital cameras 10 capture a common scene, or a single digital camera 10 and a smartphone 50 having a camera function capture a common scene. At this time, imaging settings such as resolution are adjusted between the digital camera 10 and / or the smartphone 50 capturing a common scene. Three-dimensional image data representing a common scene is created based on image data output from the digital camera 10 and / or the smartphone 50 after such adjustment processing.
[Modification 21]

A plurality of digital cameras 10 are installed in a sightseeing spot, and a smartphone 50 is carried by a traveler who has visited the sightseeing spot. When the smartphone 50 is connected to at least one digital camera 10, each digital camera 10 takes an image at an optimal timing and / or angle of view, and the still image data acquired thereby is sent to the traveler's smartphone 50. Send. The optimal timing and / or angle of view also includes the timing and / or angle of view at which the traveler is captured.
[Modification 22]

A single digital camera 10 and a single smartphone 50 are connected to each other. When the shutter button 34sh of the digital camera 10 is operated and at the same time an imaging operation is performed on the smartphone 50, on condition that the digital camera 10 is moving (someone has the digital camera 10 in hand), The operation of the shutter button 34sh is accepted with priority. The digital camera 10 notifies the smartphone 50 that the imaging operation is prohibited or restricted.
[Modification 23]

  A single digital camera 10 and each of the plurality of smartphones 50, 50,... Are connected to each other. In an imaging instruction issued from a certain smartphone 50, a desired URL or address is described as transmission destination information. Still image data acquired by the digital camera 10 in response to the imaging instruction is captured by relaying any one of a plurality of smartphones 50, 50,... Connected to the digital camera 10 or other communication devices. It is sent to the desired URL or address described in the instruction.

  More preferably, in the imaging instruction, the smartphone 50 or the communication device to be relayed is described as relay device information. Still image data acquired by the digital camera 10 in response to an imaging instruction is transmitted to a desired URL or address via a relay device described in the imaging instruction.

DESCRIPTION OF SYMBOLS 10 ... Digital camera 18 ... Imaging device 22 ... Camera processing circuit 30, 72 ... LCD monitor 32 ... Camera CPU
38, 76 ... recording medium 40, 62 ... flash memory 42, 64 ... communication I / F
50 ... Smartphone 60 ... Smartphone CPU
102: Battery 108 ... Voltage detection circuit

Claims (10)

First establishing means for establishing connection with a desired camera among one or more cameras in a disconnected state;
Second establishing means for establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state;
A request means for requesting a camera that satisfies a predetermined condition among one or more cameras established by the first establishment means and / or the second establishment means, and a request destination of the request means Electronic equipment comprising release means for releasing connection in connection with processing of said request means.   The electronic device according to claim 1, wherein the predetermined condition includes a remaining capacity condition that a remaining battery capacity is lower than a reference.   The electronic device according to claim 1, wherein the predetermined condition includes an operation condition that a pause operation is performed. Remaining amount receiving means for receiving a remaining amount notification indicating the remaining battery level from one or more cameras established by the first establishing means and / or the second establishing means, and received by the remaining amount receiving means The electronic device according to claim 3, further comprising: a remaining amount display unit that displays remaining amount information indicating the remaining battery amount based on the remaining amount notification.   The electronic device according to claim 1, wherein the specific notification is issued from a camera that has returned from a hibernation state. Image receiving means for receiving image data output from each of the one or more cameras established by the first establishing means and / or the second establishing means, and image data received by the receiving means The electronic device according to claim 1, further comprising image display means for displaying an image based on the above. In the processor of electronic equipment,
A first establishing step of establishing a connection with a desired camera among one or more cameras in an unconnected state;
A second establishment step of establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state;
A requesting step for requesting a camera that satisfies a predetermined condition among one or more cameras established by the first establishing step and / or the second establishing step, and a request destination of the requesting step; A connection control program for executing a release step for releasing connection in connection with the processing of the request step. A connection control method executed by an electronic device,
A first establishing step of establishing a connection with a desired camera among one or more cameras in an unconnected state;
A second establishment step of establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state;
A requesting step for requesting a camera that satisfies a predetermined condition among one or more cameras established by the first establishing step and / or the second establishing step, and a request destination of the requesting step; A connection control method comprising a release step of releasing a connection in connection with the processing of the request step. An external control program supplied to an electronic device including a processor that executes processing according to an internal control program stored in a memory,
A first establishing step of establishing a connection with a desired camera among one or more cameras in an unconnected state;
A second establishment step of establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state;
A requesting step for requesting a camera that satisfies a predetermined condition among one or more cameras established by the first establishing step and / or the second establishing step, and a request destination of the requesting step; An external control program for causing the processor to execute a release step of releasing a connection in connection with processing of the request step in cooperation with the internal control program. An electronic device including a capturing unit that captures an external control program, and a processor that executes processing according to the external control program captured by the capturing unit and the internal control program stored in a memory,
The external control program is
A first establishing step of establishing a connection with a desired camera among one or more cameras in an unconnected state;
A second establishment step of establishing a connection with the issuer of the specific notification in response to the specific notification issued from any one of the one or more cameras in the disconnected state;
A requesting step for requesting a camera that satisfies a predetermined condition among one or more cameras established by the first establishing step and / or the second establishing step, and a request destination of the requesting step; An electronic apparatus corresponding to a program that executes a release step of releasing a connection in association with the processing of the request step in cooperation with the internal control program.

Images