JP2017055366A - Communication device, control method therefor and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the use of an image having image quality sufficient for a service, by an operation from mobile equipment.SOLUTION: A communication device, which receives a reduction image, generated from a related image imaged by a camera and having an embedded ID indicative of a camera which images and records the related image, includes: search means for searching for a camera having the ID embedded in the reduction image, using first communication means; and display control means for displaying an image and information on a display unit. When displaying a reduction image list generated from each related image imaged by one or a plurality of cameras, the display control means displays a reduction image, of which camera having the ID can successfully be found in the search by the search means, and a reduction image of which camera cannot be found, in a mode which a user can distinguish therebetween.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a communication device, a communication device control method, and a program, and more particularly to a communication device capable of communicating with an external device.

  There are conventional use cases in which images taken with a digital camera are printed on paper for viewing or viewed on a PC. In recent years, with the spread of smartphones, there are use cases in which captured images are captured and viewed on smartphones, or uploaded to an image sharing site or SNS on a network to share captured images among a plurality of users. is increasing.

  In addition, as disclosed in Patent Document 1, there is a use case in which an image that can be used on a smartphone is printed from the smartphone via a network. In these use cases, when it is desired to use image data captured by a digital camera, the image data needs to be once taken into a smartphone.

JP 2002-26895 A

However, smartphones often have less storage capacity than PCs. Therefore, the storage capacity may be saved by reducing the resolution and size of the captured image. In such a case, there is a possibility that the image quality is not sufficient in the usage scene as in Patent Document 1.
In view of the above-described problems, an object of the present invention is to make it possible to use an image having sufficient image quality for service by an operation from a portable device.

  The communication apparatus according to the present invention is a communication apparatus that receives a reduced image created from a related image captured by a camera and embedded with an ID indicating a camera that has captured and recorded the related image. It has a search means for searching for a camera having an embedded ID using the first communication means, and a display control means for displaying an image or information on the display section, and was photographed by one or a plurality of cameras. When displaying a list of the reduced images created from the related images, the display control unit is configured to detect a reduced image that the camera having the ID can detect and a reduced image that cannot be detected in the search by the search unit. Is characterized in that it is displayed in a manner that can be distinguished by the user.

  According to the present invention, it is possible to use an image with sufficient image quality for service by an operation from a portable device.

It is a block diagram which shows the structure of the digital camera of 1st Embodiment thru | or 3rd Embodiment. It is a block diagram which shows the structure of the portable terminal of 1st Embodiment thru | or 3rd Embodiment. It is a sequence chart which shows cooperation operation | movement with the portable terminal at the time of imaging | photography of the camera of 1st Embodiment thru | or 3rd Embodiment. It is a figure which shows the example of the picked-up image of 1st Embodiment thru | or 3rd Embodiment. It is a sequence chart which shows search operation by the portable terminal and camera of 1st Embodiment. It is a figure which shows the example of the image list display in the portable terminal of 1st Embodiment. It is a sequence chart which shows cooperation operation | movement with the camera at the time of performing utilization of an image from a portable terminal of 1st Embodiment thru | or 3rd Embodiment. It is a flowchart which shows the operation | movement of the image list display in the portable terminal of 1st Embodiment. It is a flowchart which shows operation | movement of the portable terminal at the time of performing utilization of an image from a portable terminal of 1st Embodiment thru | or 3rd Embodiment. It is a flowchart which shows operation | movement of the camera of 1st Embodiment. It is a sequence chart which shows search operation by the portable terminal and camera of 2nd Embodiment. It is a figure which shows the example of the file list in 2nd Embodiment. It is a figure which shows the example of the image list display in the portable terminal of 2nd Embodiment. It is a flowchart which shows the operation | movement of the image list display in the portable terminal of 2nd Embodiment thru | or 3rd Embodiment. It is a flowchart which shows operation | movement of the camera of 2nd Embodiment thru | or 3rd Embodiment. It is a figure which shows the example of the file list in 3rd Embodiment. It is a figure which shows the example of the image list display in the portable terminal of 3rd Embodiment.

<First Embodiment>
A first embodiment in which the present invention is implemented in a digital camera and a portable terminal as an example of a communication apparatus to which the present invention is applied will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a configuration example of a digital camera according to the present embodiment.
In FIG. 1, the photographic lens 101 captures a subject image, limits the amount of light to a predetermined amount by the diaphragm 102, and then forms the subject image on the image sensor 103.

  The subject image formed on the image sensor 103 is digitized by the A / D converter 104, and gamma correction, white balance correction, noise reduction processing, and the like are performed by the image processing unit 105. Thereafter, the data is output to the data bus 106 as uncompressed image data and image display data, and stored in the working memory (DRAM) 111.

  The liquid crystal panel 109 is a display unit that displays images and various types of information. The liquid crystal driver 110 functions as an electronic viewfinder by converting the image display data stored in the working memory (DRAM) 111 into a liquid crystal display signal, sequentially transferring it to the liquid crystal panel 109, and displaying it. Display can be made.

The image size conversion circuit 107 converts the image size of the uncompressed image data stored in the working memory (DRAM) 111 according to the still image resolution setting set in the main body. For example, when the setting is “M size” and “Aspect 4: 3”, the uncompressed image data (3888 × 2592 pixels) of “L size” and “Aspect 3: 2” is converted into 2592 × 1944 pixels, and the working memory (DRAM) is restored. ) 111.
When the setting is “L” and “Aspect 3: 2”, the circuit does not perform conversion. In addition, this circuit also creates a reduced image (640 × 480 pixels) for viewing on a portable terminal described later.

The encoding circuit 108 compresses and encodes the stored non-compressed image data as a JPEG still image and a RAW still image, generates encoded data, and stores the encoded data in the working memory (DRAM) 111 again.
The recording medium 112 is a memory card composed of a NAND flash memory and a flash controller that can be attached to and detached from the digital camera body. In the present embodiment, the file is formatted with a FAT (File Allocation Table) file system.

The encoded data described above is filed and recorded on the recording medium 112 in accordance with the format.
The Wi-Fi transmission / reception unit 114 performs communication with a mobile terminal (to be described later) through the Wi-Fi antenna 113, and transmits / receives image data, control signals, and the like. The Bluetooth (registered trademark) transmission / reception unit 116 performs small-capacity communication with a mobile terminal (to be described later) through the Bluetooth antenna 115 and transmits / receives control signals and the like. Further, this block can operate even when the digital camera body is in a sleep state in which the operation is stopped and power consumption is reduced.

The operation circuit 117 is a circuit that accepts an operation through an operation key (not shown) performed by a user, a release key for instructing shooting of a still image, a mode switch for setting a digital camera mode such as a shooting mode and a playback mode, And setting keys for various setting items.
A control circuit (CPU) 118 executes a program stored in a ROM 119 described later. The program here is a program for executing various sequences described later in the present embodiment, and realizes each process of the present embodiment described later. Further, display control is also performed by controlling the liquid crystal driver 110 and the like. The ROM 119 is an electrically erasable / recordable nonvolatile memory, and stores the above-described program, setting contents of the main body, and the like.

FIG. 2 is a block diagram illustrating a configuration example of the mobile terminal according to the present embodiment.
In the portable terminal, the liquid crystal panel 201 is a display unit that displays images and various types of information. The liquid crystal driver 202 converts image display data stored in the working memory (DRAM) 203 into a liquid crystal display signal and supplies the liquid crystal display signal to the liquid crystal panel 201.

A working memory (DRAM) 203 provides a working memory space for developing image data received from a digital camera, and also provides a space as a video memory for displaying on the liquid crystal panel 201.
The touch panel 204 is a touch panel that is integrated with the liquid crystal panel 201. When the touch panel driver 205 detects the touch operation of the user at the position of the software switch displayed on the liquid crystal panel 201, it serves as a switch that receives various operations from the user.

  The recording medium 206 records the received JPEG still image or RAW still image for storage. A Wi-Fi transmission / reception unit 208 provided as a second communication unit performs communication according to the Wi-Fi (IEEE802.11g) standard with the above-described digital camera via the Wi-Fi antenna 207, and an image Send and receive data and control signals. Also, the Bluetooth transmission / reception unit 210 provided as the first communication unit performs small-capacity communication according to Bluetooth (Bluetooth 4.0) with the digital camera through the Bluetooth antenna 209, and transmits and receives control signals and the like. To do. The Wi-Fi transmission / reception unit 208 can perform higher-speed communication than the Bluetooth transmission / reception unit 210.

  The ROM 212 is an electrically erasable / recordable nonvolatile memory, and stores an OS, a program, and the like of the control circuit (CPU) 211. Here, the program is a program for executing various sequences described later in the present embodiment, and realizes each process of the present embodiment described later. The control circuit (CPU) 211 also performs display control by controlling the liquid crystal driver 202 and the like.

  In the present embodiment, an example of operation with three digital cameras and one portable terminal will be described. Note that CAM_001, CAM_002, and CAM_003 are set as identification camera names (IDs) for the three digital cameras (hereinafter referred to as cameras), respectively.

FIG. 3 is a sequence chart at the time of camera photographing in the present embodiment, and FIG. 4 is a diagram illustrating an example of an image photographed by three cameras and transmitted to the mobile terminal. Communication in the sequence chart of FIG. 3 is Wi-Fi communication.
In S301, shooting is performed by the camera 1 (CAM_001).
In S302, a file “IMGA0001.JPG” obtained by converting the captured image into a JPEG format and “IMGA0001.CR2” that is a RAW file of the captured image are recorded on the recording medium 112 in the camera 1.

  Next, in S303, a reduced image obtained by reducing the photographed image to 640 × 480 pixels is transmitted to the mobile terminal. This image is 401 in FIG. 4 and is “IMGA0001” as the image number (JPEG file name) of the captured image (main image) stored in the camera 1 as information associated with the reduced image at the time of transmission in S303. Information is sent. In addition, since the RAW image is stored simultaneously with the JPEG image as the main body information indicating the storage location of the captured image, the file name “IMGA0001.CR2” and the image resolution “3888 × 2592” of the captured image are included. Sent.

Furthermore, when shooting is performed by the camera 1 in S304, a file “IMGA0002.JPG” obtained by converting the captured image to JPEG on the recording medium 112 in the camera 1 and “IMGA0002”, which is a RAW file of the captured image, in S305. .CR2 "is recorded.
In S306, a reduced image obtained by reducing the photographed image to 640 × 480 pixels is transmitted to the mobile terminal. This image is 402 in FIG. 4 and is “IMGA0002” as the image number (JPEG file name) of the captured image (main image) stored in the camera 1 as information associated with the reduced image at the time of transmission in S306. Information is sent. Further, since the RAW image is stored simultaneously with the JPEG image as the main body information indicating the storage location of the captured image, the file name “IMGA0002.CR2” and the image resolution “3888 × 2592” of the captured image are included. Sent.

In S307, shooting is performed by the camera 3 (CAM_003). Next, in S308, the file “IMGC0001.JPG” in which the photographed image is converted to JPEG and “IMGC0001.CR2” that is the RAW file of the photographed image are recorded on the recording medium 112 in the camera 3.
In S309, a reduced image obtained by reducing the photographed related image to 640 × 480 pixels is transmitted to the mobile terminal. This image is 403 in FIG. 4 and is “IMGC0001” as the image number (JPEG file name) of the captured image (main image) stored in the camera 3 as information associated with the reduced image at the time of transmission in S309. Information is sent. In addition, since the RAW image is stored simultaneously with the JPEG image as the main body information indicating the storage location of the captured image, the file name “IMGC0001.CR2” and the image resolution “2592 × 1944” of the captured image are included. Sent.

In S310, shooting is performed by the camera 2 (CAM_002). Next, in S <b> 311, a file “IMGB0001.JPG” obtained by converting the captured image into a JPEG format and “IMGB0001.CR2”, which is a RAW file of the captured image, are recorded on the recording medium 112 in the camera 2.
Next, in S312, a reduced image obtained by reducing the photographed image to 640 × 480 pixels is transmitted to the mobile terminal. This image is 404 in FIG. 4 and is “IMGB0001” as the image number (JPEG file name) of the captured image (main image) stored in the camera 2 as information associated with the reduced image at the time of transmission in S312. Information is sent. Also, “CAM — 002” is stored as main body information indicating the location where the captured image is stored, and the RAW image is stored at the same time as the JPEG image. Information is sent.
In the present embodiment, by repeating this operation, as shown in FIG. 4, eight still images are taken by three cameras, and the reduced images (hereinafter, thumbnails) are transferred to the mobile terminal. .

Hereinafter, an operation of displaying a list of captured still images in the mobile terminal will be described. In the present embodiment, a case will be described in which the camera 2 is turned off or the camera 2 does not exist within the communication range with the communication terminal.
In FIG. 5, when the mobile terminal is instructed to display a list screen of captured images by operating the mobile terminal by the user in step S <b> 501, a search is performed as to whether the cameras 1 to 3 are in a communicable state by the mobile terminal. Is done. This search is performed by communication using Bluetooth Low Energy. In this embodiment, the camera operates as a “peripheral” that supports one connection, and the mobile terminal connects to a plurality of peripherals and operates as a “central” that manages the connection.

FIG. 5 is a sequence chart showing the above-described search operation.
In FIG. 5, S500a to S500f are advertisement packets sent from the camera 1. The advertisement is a connection request from the peripheral to the central, and information called a characteristic is sent from the peripheral to the advertisement packet at regular time intervals.

  The characteristic includes a device name “CAM — 001” indicating the transmission source. The Bluetooth transmitting / receiving unit 116 is configured to receive power from a main battery that drives the camera regardless of whether the power of the camera body is ON or OFF. With this configuration, the advertisement packet is transmitted from the camera regardless of whether the power source of the main body is ON or OFF. S500g to S500l are advertisement packets sent from the camera 3, and the characteristic includes a device name “CAM_003” indicating the transmission source.

When the user activates the image viewer software in the list display mode on the portable terminal in S501, the scanning operation by the Bluetooth transmitting / receiving unit 210 of the portable terminal is started in S502.
Thereafter, an advertisement packet from CAM_001 is received at S503, and an advertisement packet from CAM_003 is received at S504. Thereby, it is confirmed in a portable terminal that the camera 1 and the camera 3 exist in the range which can be wirelessly communicated.

FIG. 6 is an example of an image viewer list display on a portable terminal.
In FIG. 6, reference numeral 601 denotes IMGA0001. A thumbnail image of CR2 (401 in FIG. 4), 602 is IMGA0002. A thumbnail image of CR2 (402 in FIG. 4), 603 is IMGC0001. It is a thumbnail image of CR2 (403 in FIG. 4).
604 is IMGB0001. A thumbnail image of CR2 (404 in FIG. 4), 605 is IMGB0002. A thumbnail image of CR2 (405 in FIG. 4), 606 is IMGA0003. It is a thumbnail image of CR2 (406 in FIG. 4).
607 is IMGA0004. A thumbnail image of CR2 (407 in FIG. 4), 608 is IMGC0002. It is a thumbnail image of CR2 (408 in FIG. 4).

  However, it has been confirmed that communication with the camera 2 cannot be performed by searching. That is, the original image of the thumbnail 604, IMGB0001. The original image of CR2 and thumbnail 605 is IMGB0002. It is impossible to obtain CR2 from the mobile terminal. In order to notify the user of the situation, icons 609 and 610 indicating that the thumbnails cannot be used are superimposed on the thumbnail and displayed in a manner that allows the user to distinguish the icons.

FIG. 8 is a flowchart showing the operation of the mobile terminal in the sequence chart of FIG. Each operation (step) shown in the flowchart of FIG. 8 is realized by the control circuit (CPU) 211 developing and executing the control program stored in the ROM 212 in the work memory (DRAM) 203.
In S801, the mobile terminal starts to operate, and in S802, the user activates the image viewer software in the list display mode on the mobile terminal (S501 in the sequence chart of FIG. 5).
In S803, the advertisement packet scan is started, and a scan timer for managing the scan timeout is started.

In step S804, the Bluetooth channel is set to 1.
In step S805, the control circuit (CPU) 211 determines whether or not the advertisement packet has been received on the channel. If reception is successful, the ID signal included in the advertisement packet is detected and detected in step S806. Create a list of assigned numbers.
In S807, the control circuit (CPU) 211 detects whether or not the Bluetooth channel has reached the final channel. If not, the channel number is incremented by 1 in S808, and the process returns to S805.

  When the advertisement packet reception is attempted for all the channels in this way, the control circuit (CPU) 211 detects whether or not the scan timer has elapsed for 10 seconds or more in S809. If not detected, the process returns to S804 again. If detected, the scan is terminated. In other words, the scan operation is performed in such a manner that all of the Bluetooth channels are repeatedly tried to receive the advertisement packet for 10 seconds (so far, S502 to S504 in the sequence chart of FIG. 5).

In step S810, the created ID list is referred to. In the present embodiment, it can be seen that the advertisement packet including the information of “CAM — 001” and “CAM — 003” has been received.
In S811, the thumbnail list shown in FIG. 6 is displayed, and in S812, display control is performed to superimpose icons 609 and 610 indicating that they cannot be used.

The user has the file IMGA0001. When the thumbnail 601 is touched to print the CR2 image, the operation of the sequence chart shown in FIG. 7 is started.
In FIG. 7, S700a to S700f are advertisement packets transmitted from the camera 1. S700g to S700o are advertisement packets sent from the camera 3. File IMGA0001. It is known that CR2 is stored in CAM_001. Therefore, after the user selects an image and issues a print instruction in S701, the mobile terminal receives the advertisement packet transmitted by the camera 1 in S702, and responds to the camera 1 in S703. Send a signal.

  In the configuration of the present embodiment, any advertisement packet that does not include the characteristic of “CAM — 001” can be used as the advertisement packet transmitted by the camera 1. This is because the source of the target file is known on the mobile terminal side. The response signal includes a characteristic instructing to turn on the power of the camera body. When the power of the camera 1 is turned on in S704, the process of turning on the power from the camera is performed in S705. A startup completion notification indicating completion is sent.

  In step S <b> 706, a response signal is further transmitted to the camera 1. The response signal includes a characteristic instructing to switch to Wi-Fi connection, and the connection by Wi-Fi is performed between the mobile terminal and the camera 1 in S707. Note that Wi-Fi connection in the present embodiment uses Wi-Fi direct connection that does not require an access point, and subsequent communication is performed by Wi-Fi. When the connection is completed, the image file IMGA0001. A command requesting transmission of CR2 is transmitted.

In S709, the camera 1 sends the image file IMGA0001. CR2 is transmitted.
In S710, the Wi-Fi direct connection destination with the mobile terminal is changed to a printer.
In S711, IMGA0001. The CR2 is developed, the developed image converted into a data format that can be printed by the printer is transmitted to the printer, and printing is executed in the printer.

FIG. 9 is a flowchart showing the operation of the mobile terminal in the sequence chart of FIG. Each operation (step) shown in the flowchart of FIG. 9 is realized by the control circuit (CPU) 211 developing and executing a control program stored in the ROM 212 in the work memory (DRAM) 203.
In step S901, the mobile terminal starts operating. In step S902, the user operates the file IMGA0001. To print the CR2 image, the user touches the thumbnail 601 (S701 in the sequence chart of FIG. 7), and performs a print instruction operation. In S903, advertisement packet scanning is started.

In step S904, the Bluetooth channel is set to 1.
In step S905, the control circuit (CPU) 211 determines whether an advertisement packet has been received on the channel. If the reception is successful, the ID signal included in the advertisement packet is detected in S906, and the detected ID is stored in the file IMGA0001. The control circuit (CPU) 211 detects whether or not it matches “CAM — 001” that is the storage source of CR2. If they do not match, the channel number is incremented by 1 in S908, and the process returns to S905.

If an ID match is detected in S907 (so far, S702 in the sequence chart of FIG. 7), the process proceeds to S909.
In S909, a response including a characteristic instructing to turn on the power of the camera body is transmitted to the camera 1 (S703 in the sequence chart of FIG. 7).
Further, in S910, a response including a characteristic instructing switching to the Wi-Fi connection is transmitted to the camera 1 (S706 in the sequence chart of FIG. 7).

When the Wi-Fi connection with the camera is established in S911 (S707 in the sequence chart of FIG. 7), the process proceeds to S912.
In S912, the file IMGA0001. A command instructing to transmit CR2 is transmitted to the camera 1 (S708 in the sequence chart of FIG. 7), and in S913, the file IMGA0001. Receive CR2.

At S914, the Wi-Fi direct connection destination with the camera is changed to the printer (S710 in the sequence chart of FIG. 7).
Next, at S915, IMGA0001. After developing CR2, the developed image converted into a data format that can be printed by the printer is transmitted to the printer, and printing is executed by the printer (S711 in the sequence chart of FIG. 7). Thereafter, the process ends in S916.

FIG. 10 is a flowchart showing the operation of the camera in the sequence charts of FIGS. 5 and 7 according to the present embodiment. Each operation (step) shown in the flowchart of FIG. 10 is realized by the control circuit (CPU) 118 developing the control program stored in the ROM 119 in the work memory (DRAM) 111 and executing it.
In FIG. 10, when the operation is started in S1001 (the camera body power is in the OFF state), the operation of the Bluetooth transmitting / receiving unit 116 is started in S1002. Thereafter, in S1003, transmission of the advertisement packet is started. Thereafter, in S1004, a response from the mobile terminal to the transmitted advertisement is received.

  In S1005, the control circuit (CPU) 118 determines whether or not the response has been successfully received. If the response has not been received, the process returns to S1003. In the operation of the sequence chart of FIG. 5, since the mobile terminal does not transmit a response even when it receives an advertisement from the camera, the operation of the camera only repeats the operations of S1003 to S1005.

If the control circuit (CPU) 118 determines that the response has been successfully received, it detects in S1006 whether or not an instruction to turn on the camera body is written in the response. If not, the process returns to S1003.
If it is detected (S703 in the sequence chart of FIG. 7), the camera body is turned on (S704 in the sequence chart of FIG. 7). Then, after the activation is completed, a notification of activation completion is transmitted from the camera to the portable terminal in S1007 (S705 in the sequence chart of FIG. 7).

In S1008, the response is received again (S706 in the sequence chart of FIG. 7).
In 1009, the control circuit (CPU) 118 determines whether or not the response has been successfully received. If the response has not been received, the process returns to S1008. If the control circuit (CPU) 118 determines that the response has been successfully received, the control circuit (CPU) 118 determines whether or not an instruction to switch to the Wi-Fi connection is included in the response in S1010. To detect. When detected, in S1011, connection by Wi-Fi is started between the portable terminal and the camera 1 (S707 in the sequence chart of FIG. 7).
In S1012, a command from the portable terminal is received (S708 in the sequence chart of FIG. 7), and the image file specified by the command is transmitted by Wi-Fi (S709 in the sequence chart of FIG. 7).

  According to the configuration of the present embodiment, when displaying a list of digital camera images on the mobile terminal side, the source of the original image is confirmed, and whether or not communication with the source device is possible on the spot is confirmed. The availability of the original image is displayed in addition to the image list. For this reason, when using the original image from the mobile terminal side, there is an effect that it becomes easy for the user to grasp the availability.

  In the present embodiment, the image file received from the camera is used to transmit the image from the portable terminal to the printer for printing. In addition to this, the image is transmitted from the portable terminal to the image server and shared among a plurality of users, or the image is transmitted from the portable terminal to the large-screen TV so that the image can be viewed on a large screen. It can also be applied to a configuration in which an image file is used by another device.

<Second Embodiment>
A second embodiment in which the present invention is implemented in a digital camera and a portable terminal as an example of a communication apparatus to which the present invention is applied will be described with reference to the drawings.
The block diagram which shows the structural example of the digital camera (henceforth a camera) of this embodiment, the block diagram which shows the structural example of a portable terminal, the sequence chart at the time of camera photography, The figure which shows the example of the image transmitted to the portable terminal Is the same as FIG. 1 to FIG. 4 described in the first embodiment. The portable terminal of this embodiment creates a file list of the format shown in FIG. 12A every time a reduced image shown in S303, S306, etc. in FIG. 3 is received, and saves it together with the shooting information shown in FIG. Yes.

Hereinafter, an operation for displaying a list of still images taken by the mobile terminal will be described. In the present embodiment, a case will be described in which the camera 2 is turned off or does not exist within the communication range with the communication terminal.
In FIG. 11, when display of a list screen of captured images is instructed on the mobile terminal by the operation of the mobile terminal by the user in S <b> 1101, the mobile terminal determines whether the cameras 1 to 3 are in a communicable state. Explored. This search is performed by communication using Bluetooth Low Energy. In this embodiment, the camera operates as a “peripheral” that supports one connection, and the mobile terminal connects to a plurality of peripherals and operates as a “central” that manages the connection.

FIG. 11 is a sequence chart showing a search operation by the mobile terminal and the camera.
In FIG. 11, S1100a to S1100f are advertisement packets sent out by the camera 1. The advertisement is a connection request from the peripheral to the central, and information called a characteristic is sent from the peripheral to the advertisement packet at regular time intervals. The characteristic includes a device name “CAM — 001” indicating the transmission source. The Bluetooth transmitting / receiving unit 116 is configured to receive power from a main battery that drives the camera regardless of whether the power of the camera body is ON or OFF.

  With this configuration, the advertisement packet is transmitted from the camera regardless of whether the power source of the camera body is ON or OFF. S1100g to S1100l are advertisement packets sent from the camera 3, and the characteristic includes a device name “CAM_003” indicating the transmission source.

When the user activates the image viewer software in the list display mode on the portable terminal in S1101, the scanning operation by the Bluetooth transmission / reception unit 210 of the portable terminal is started in S1102.
Thereafter, when an advertisement packet from CAM_001 is received in S1103, a response signal is transmitted to the camera 1 that is transmitting the advertisement packet in S1104. The response signal includes a characteristic requesting transmission of the file list from the camera 1, and the file list transmitted from the camera 1 is received in S1105.

  This file list is shown in FIG. In this file list, when compared with the list in [CAM_001] in FIG. It can be seen that CR2 is gone. That is, the file is deleted after the image is captured, and the image file 406 in FIG. It can be seen that only JPG is usable.

  Thereafter, when an advertisement packet from CAM_003 is received in S1106, a response signal is transmitted to the camera 3 that is transmitting the advertisement packet in S1107. The response signal includes a characteristic requesting transmission of the file list from the camera 3, and the file list transmitted from the camera 3 is received in S1108.

  This file list is shown in FIG. In this file list, when compared with the list in [CAM_003] of FIG. CR2 and IMGC0002. You can see that JPG is gone. That is, it can be seen that the file has been deleted after the image was shot, and the image file 408 in FIG. 4 is in an unusable state.

Furthermore, since the advertisement packet including the information of CAM_002 has not been received, it is confirmed by the portable terminal that the camera 2 does not exist in a range where wireless communication is possible. That is, it can be seen that the image files 404 and 405 in FIG. 4 are unusable. The information so far is as follows.
For the image in FIG.
(A) 401, 402, 403, and 407 can use RAW images.
(B) 406 can only use JPEG images,
(C) Images 404, 405, and 408 cannot be used.

FIG. 13 is a diagram illustrating an example of a list display of the image viewer on the mobile terminal.
In FIG. 13, reference numeral 1301 denotes IMGA0001. Thumbnail image of CR2 (401 in FIG. 4), 1302 is IMGA0002. Thumbnail image of CR2 (402 in FIG. 4), 1303 is IMGC0001. It is a thumbnail image of CR2 (403 in FIG. 4).
1304 is IMGB0001. The thumbnail image of CR2 (404 in FIG. 4) 1305 is IMGB0002. A thumbnail image of CR2 (405 in FIG. 4) 1306 is IMGA0003. It is a thumbnail image of CR2 (406 in FIG. 4).
1307 is IMGA0004. Thumbnail image of CR2 (407 in FIG. 4), 1308 is IMGC0002. It is a thumbnail image of CR2 (408 in FIG. 4).

  However, it has been confirmed that communication with the camera 2 cannot be performed by searching. That is, the original image of the thumbnail 1304, IMGB0001. The original image of CR2 and thumbnail 1305 is IMGB0002. It is impossible to obtain CR2 from the mobile terminal. In order to notify the user of the situation, icons 1309 and 1310 indicating that the thumbnails cannot be used are superimposed on the thumbnail and displayed in a manner that allows the user to distinguish the thumbnails.

The original image of the thumbnail 1306 is IMGA0003. CR2 has the same content and image quality degradation. Since only JPG can be acquired from the mobile terminal, an icon 1311 indicating that the RAW image cannot be used is superimposed on the thumbnail.
As for the thumbnail 1308, the original image IMGC0002. CR2 and IMGC0002. Since both JPGs are deleted, they cannot be acquired from the mobile terminal. Therefore, an icon 1312 indicating that the image has been deleted is displayed superimposed on the thumbnail.

FIG. 14 is a flowchart showing the operation of the mobile terminal in the sequence chart of FIG. Each operation (step) shown in the flowchart of FIG. 14 is realized by the control circuit (CPU) 211 developing and executing the control program stored in the ROM 212 in the work memory (DRAM) 203.
In S1401, the mobile terminal starts to operate, and in S1402, the user activates the image viewer software in the list display mode on the mobile terminal (S1101 in the sequence chart of FIG. 11).
Next, in step S1403, advertisement packet scanning is started, and a scan timer for managing the scan timeout is started.

In S1404, the Bluetooth channel is set to 1.
In step S1405, the control circuit (CPU) 211 determines whether or not the advertisement packet has been received in the channel. If the reception is successful, the ID signal included in the advertisement packet is detected and detected in step S1406. Create a list of assigned numbers.

Further, in S1407, a response requesting a file list is transmitted to the camera (S1104 in the sequence chart of FIG. 11).
In S1408, the file list transmitted from the camera is received and acquired (S1105 in the sequence chart of FIG. 11).
Thereafter, in S1409, the control circuit (CPU) 211 detects whether or not the Bluetooth channel has reached the final channel. If not, the channel number is incremented by 1 in S1410, and the process returns to S1405. .

  Thus, when reception of advertisement packets is attempted for all channels, the control circuit (CPU) 211 detects whether or not the scan timer has elapsed for 10 seconds or more in S1411. If not detected, the process returns to S1404 again. If detected, the scan is terminated. In other words, the scan operation is performed in such a manner that all of the Bluetooth channels are repeatedly tried to receive the advertisement packet for 10 seconds (so far, S1102 to S1103 in the sequence chart of FIG. 11).

  Thereafter, in S1412, the created ID list is collated with the file list received from the camera. As a result of the collation, in this embodiment, an advertisement packet including information of “CAM — 001” and “CAM — 003” has been received, and IMGA0003. CR2, IMGC0002. CR2 and IMGC0002. You can see that JPG is gone.

In S1413, the thumbnail list shown in FIG. 13 is displayed, and in S1414, icons 1309 to 1312 indicating whether or not images can be used are superimposed and displayed.
Thereafter, the user makes the file IMGA0001. The operation when the thumbnail 1301 is touched to print the CR2 image is the same as the operation of the sequence chart shown in FIG. 7 described in the first embodiment.

FIG. 15 is a flowchart showing the operation of the camera in the sequence chart of FIG. 11 of the present embodiment. Each operation (step) shown in the flowchart of FIG. 15 is realized by the control circuit (CPU) 118 developing the control program stored in the ROM 119 in the work memory (DRAM) 111 and executing it.
When the operation is started in S1501 (the camera body power is OFF), the operation of the Bluetooth transmitting / receiving unit 116 is started in S1502, and the transmission of the advertisement packet is started in S1503.
Thereafter, in S1504, a response from the portable terminal to the transmitted advertisement is received (S1104 or 1107 in the sequence chart of FIG. 11).

  In S1505, the control circuit (CPU) 118 determines whether or not the response has been successfully received. If the response has not been received, the process returns to S1503. If the control circuit (CPU) 118 determines that the response has been successfully received, the control circuit (CPU) 118 detects whether or not a file list request is included in the response in S1506. If it is detected, the file list is transmitted to the portable terminal in S1507 (S1105 or 1108 in the sequence chart of FIG. 11), and the process returns to S1503.

If the file list request is not included, in S1508, the control circuit (CPU) 118 detects whether or not an instruction to turn on the power of the camera body is written in the response. In the case, the process returns to S1503.
The operations after S1509 are the same as the operations after S1007 in the flowchart described with reference to FIG. 10 of the first embodiment.

  According to the configuration of the present embodiment, when displaying a list of images of the digital camera on the mobile terminal side, the source of the original image is confirmed, and whether or not communication with the source device is possible on the spot is possible. In addition, the latest file list is acquired from the storage source. As a result, since the availability of the original image and the deletion information of the image are displayed in addition to the image list, when using the original image from the mobile terminal side, the user can use the image at the highest quality in addition to the availability. There is an effect that it becomes easy to grasp the possibility.

  In this embodiment as well, as in the first embodiment, the image is received from the camera, and the image is transmitted from the portable terminal to the printer for printing. In addition to this, the image is transmitted from the portable terminal to the image server and shared among a plurality of users, or the image is transmitted from the portable terminal to the large-screen TV so that the image can be viewed on a large screen. It can also be applied to a configuration in which an image file is used by another device.

<Third Embodiment>
A third embodiment in which the present invention is implemented in a digital camera and a portable terminal as an example of a communication apparatus to which the present invention is applied will be described with reference to the drawings.
The block diagram which shows the structural example of the digital camera (henceforth a camera) of this embodiment, the block diagram which shows the structural example of a portable terminal, the sequence chart at the time of camera photography, The figure which shows the example of the image transmitted to the portable terminal Is the same as FIG. 1 to FIG. 4 described in the first embodiment. Further, the search for the camera by the portable terminal of the present embodiment is the same as the operation shown in the sequence chart of FIG. 11 described in the second embodiment.

In the sequence chart of FIG. 11, the file list transmitted from the camera 1 in S1105 is shown in FIG. 16A, and the file list transmitted from the camera 3 in S1108 is shown in FIG.
These file lists are compared with the file lists of [CAM_001] and [CAM_003] in FIG. Then, IMGA0003. CR2 and IMGA0003. JPG, and IMGC0002. CR2 and IMGC0002. You can see that JPG is gone.

The information that can be understood by the operation so far is as follows.
For the image in FIG.
(1) 406 and 408 can use only the thumbnail image of the portable terminal, and there is no original image.
(2) For 401, 402, 403, and 407, thumbnail images of portable terminals and original images in CAM_001 and CAM_003 can be used.
(3) 404 and 405 can use only the thumbnail image of the mobile terminal, the original image may be in CAM_002,
It is.

FIG. 17 is a diagram illustrating an example of a list display of the image viewer on the mobile terminal.
In FIG. 17, reference numeral 1701 denotes IMGA0001. A thumbnail image of CR2 (401 in FIG. 4), 1702 is IMGA0002. A thumbnail image of CR2 (402 in FIG. 4), 1703 is IMGC0001. It is a thumbnail image of CR2 (403 in FIG. 4).
1704 is IMGB0001. A thumbnail image of CR2 (404 in FIG. 4), 1705, IMGB0002. A thumbnail image of CR2 (405 in FIG. 4), 1706, IMGA0003. It is a thumbnail image of CR2 (406 in FIG. 4).
1707 is IMGA0004. A thumbnail image of CR2 (407 in FIG. 4), 1708 is IMGC0002. It is a thumbnail image of CR2 (408 in FIG. 4).

For each image, since the situations (1) to (3) described above are known, the following marks are superimposed on each thumbnail and displayed in a manner that can be discriminated by the user.
Since the original image file has been deleted on the camera side on the thumbnails 1706 and 1708, marks 1714 and 1716 indicating that the thumbnail image is used are superimposed when a print instruction is given.
Marks 1709, 1710, 1711, and 1715 indicating that a RAW file stored in each camera is used when a print instruction is issued are superimposed on the thumbnails 1701, 1702, 1703, and 1707. ).
The original RAW file may exist on the camera side on the thumbnails 1704 and 1705, but since communication is not possible, marks 1712 and 1713 indicating that thumbnail images are used when a print instruction is issued are superimposed. .. Corresponds to (3) above.

  Thereafter, the user makes a file IMGA0001. The operation when the thumbnail 1701 is touched to print the CR2 image is the same as the operation of the sequence chart shown in FIG. 7 described in the first embodiment.

  According to the configuration of the present embodiment, when displaying a list of images of the digital camera on the mobile terminal side, the source of the original image is confirmed, and whether or not communication with the source device is possible on the spot is possible. In addition, the latest file list is acquired from the save source. As a result, since the availability of the original image, the deletion information of the image, and the image file used for printing are displayed in addition to the image list, the user can grasp the print image quality when using the image from the mobile terminal side. There is an effect that it becomes easy to do.

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

201 Liquid crystal panel 202 Liquid crystal driver 203 Working memory (DRAM)
204 Touch Panel 205 Touch Panel Driver 206 Recording Medium 207 Wi-Fi Antenna 208 Wi-Fi Transmit / Receive Unit 209 Bluetooth Antenna 210 Bluetooth Transmit / Receive Unit 211 Control Circuit (CPU)
212 Operation circuit 213 ROM

Claims (9)

A communication device that receives a reduced image created from a related image captured by a camera and embedded with an ID indicating a camera that has captured and recorded the related image,
Search means for searching for a camera having an ID embedded in the reduced image using a first communication means;
Display control means for displaying images and information on the display unit,
When displaying a list of the reduced images created from the related images taken by one or a plurality of cameras,
In the search by the search means, the display control means displays a reduced image that can be detected by the camera having the ID and a reduced image that cannot be detected in a manner that can be distinguished by the user. Communication device.   The search means detects the ID included in the signal when the signal including the ID information indicating the camera is received by the first communication means, thereby detecting the presence of the camera having the ID and the The communication apparatus according to claim 1, wherein the communication apparatus confirms that the camera is in a communicable state. When the ID embedded in the reduced image can be detected by the search means,
The communication device according to claim 1, wherein the display control unit simultaneously performs display indicating that the related image can be used when displaying the reduced image. When the search unit cannot detect the ID embedded in the reduced image,
The communication apparatus according to claim 1, wherein the display control unit simultaneously performs display indicating that the related image cannot be used when the reduced image is displayed. An acquisition unit that acquires a file list of related images stored in the camera when a camera having an ID included in the reduced image is detected by the search unit;
A collation unit that collates the file list acquired by the acquisition unit and the reduced image stored in the communication device;
As a result of collation by the collation means, if there is a related image deleted in the camera,
The communication apparatus according to claim 1, wherein the display control unit displays that there is no related image corresponding to the reduced image. When the user specifies an arbitrary reduced image from the list of reduced images and is instructed to use the image,
The display control means searches for a camera in which the operation using the reduced image, the operation using the related image corresponding to the reduced image, or the related image corresponding to the reduced image is stored. 6. The communication apparatus according to claim 5, wherein display is performed in a manner that allows a user to determine whether or not an operation using the related image is performed by making the state capable of being performed. Having second communication means capable of performing higher-speed communication than the first communication means;
If the related image corresponding to the reduced image can be used by the search means or the collating means when an operation instruction using the image is performed by the user, the ID embedded in the reduced image 7. The communication apparatus according to claim 5, wherein a request is made to transmit a related image to a camera having a camera, and the related image is received by the second communication unit. A method for controlling a communication device that receives a reduced image created from a related image captured by a camera and embedded with an ID indicating a camera that has captured and recorded the related image,
A search step of searching for a camera having an ID embedded in the reduced image using a first communication means;
A display control step of displaying images and information on the display unit,
When displaying a list of the reduced images created from the related images taken by one or a plurality of cameras,
In the display control step, the reduced image that can be detected by the camera having the ID and the reduced image that cannot be detected in the search by the search step are displayed in a manner that can be distinguished by the user. A method for controlling a communication device.   A computer-readable program for causing a computer to function as each unit of the communication device according to any one of claims 1 to 7.