JP2005123922A - Electronic camera and its display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic camera and its display method for retrieving and displaying services compatible with peripheral devices before the processing regarding the services is performed in the electronic camera which directly transmits/receives data with the peripheral devices. <P>SOLUTION: A DSC (digital still camera) directly transmits/receives the data with the peripheral devices. The DSC has a memory 12 in which a virtual file to be created corresponding to every service which the DSC supports and file information about a retrieved virtual file to be transmitted from the peripheral devices when the virtual file corresponding to services which the peripheral device supports from a file stored in the memory 12 is retrieved in the peripheral device are stored and a display part 9 which displays the service according to the file information of the virtual file stored in the memory 12, etc. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electronic camera that directly transfers data to and from a peripheral device without going through a personal computer (hereinafter referred to as “PC”), and more particularly to an electronic camera that searches and displays a service that can be handled with the peripheral device. .

Conventionally, there is a system that directly transfers data between an electronic camera and a peripheral device without using a PC.
For example, a digital still camera (hereinafter referred to as DSC) having an interface conforming to IEEE (Institute of Electrical and Electronics Engineers) 1394 is directly connected to a printer, and image data stored in the internal memory of the DSC is transferred to the printer. And a system for directly connecting a DSC having an interface conforming to IEEE 1394 and a storage device to transfer image data stored in the internal memory of the DSC to the storage device and storing it (Patent Literature) 1 etc.).

However, in these systems, because the specifications differ depending on the manufacturer and model, the combination of apparatuses is limited such as a specific DSC and a dedicated printer, a specific DSC and a dedicated storage device, and the like.
In view of such circumstances, in recent years, there has been a movement to directly standardize and establish various services at an application level by directly connecting an image input device and an image output device, and CIPA (Camera & Imaging) Products Association) Standard DC-001-2003 Digital Photo Solutions for Imaging Devices (hereinafter simply referred to as DC-001-2003) directly connects a DSC and a printer, and prints an image obtained by shooting without using a PC. Direct print service has been standardized. As a result, if the DSC and the printer conform to DC-001-2003, a direct print service can be performed between any DSC and the printer without being restricted by the manufacturer or model. It was.
JP 2003-78844 A

  By the way, the above-mentioned DC-001-2003 standardizes a direct print service in which a DSC and a printer are directly connected and an image is printed without using a PC. It is not standardized.

  For this reason, in DC-001-2003, the devices connected to each other are negotiated by the operation of discovery whether or not the devices connected to each other are devices compliant with DC-001-2003. If it is detected that the device conforms to DC-001-2003, the processing related to the direct print service can be executed.

  Therefore, in such a discovery operation, when a peripheral device (for example, storage) that does not comply with the DSC that conforms to DC-001-2003 is connected, the device to which the DSC is connected is DC If it is detected that the device conforms to -001-2003, the DSC may recognize the peripheral device as a printer and perform inappropriate processing.

  In view of the above circumstances, the present invention searches and displays a service that can be handled with a peripheral device before processing related to the service is performed in an electronic camera that directly transmits and receives data to and from the peripheral device. It is an object of the present invention to provide an electronic camera and a display method thereof.

  In order to achieve the above object, an electronic camera according to a first aspect of the present invention is an electronic camera that directly transmits and receives data to and from a peripheral device, and is created for each service supported by the electronic camera. A first storage unit storing a virtual file to be stored, and the peripheral device when a virtual file corresponding to a service supported by the peripheral device is retrieved from the file stored in the first storage unit in the peripheral device. A second storage means for storing file information of the virtual file corresponding to the searched service transmitted from the apparatus, and a service corresponding to the file information of the virtual file stored in the second storage means. Display means for displaying.

According to the above configuration, when a service that can be handled between the electronic camera and the peripheral device is searched, the searched service is displayed on the display unit of the electronic camera.
Further, in the electronic camera according to the second aspect of the present invention, in the first aspect described above, when a request for deleting file information of a virtual file corresponding to a service supported by the peripheral device is made from the peripheral device, Alternatively, when the interface with the peripheral device is disconnected, the display means displays the end of service.

According to this configuration, when the above-mentioned file information deletion request is made, for example, when the service is terminated, or when the interface with the peripheral device is disconnected, the fact that the service is terminated is displayed on the display means of the electronic camera. Is done.
An electronic camera according to a third aspect of the present invention is configured such that, in the first or second aspect, the service is one or both of a print service and a storage service.

An electronic camera according to a fourth aspect of the present invention is configured such that, in the third aspect described above, the peripheral device that supports the storage service is an optical disk device.
A display method of an electronic camera according to a fifth aspect of the present invention is a display method of an electronic camera that directly transmits and receives data with a peripheral device, and is created for each service supported by the electronic camera. A virtual file is stored in a first storage unit, and when a virtual file corresponding to a service supported by the peripheral device is searched from the file stored in the first storage unit in the peripheral device, the peripheral device The file information of the virtual file corresponding to the searched service to be transmitted is stored in the second storage unit, and the service corresponding to the file information of the virtual file stored in the second storage unit is displayed.

According to the above configuration, when a service that can be handled between the electronic camera and the peripheral device is searched for, as in the first aspect described above, the searched service is displayed on the electronic camera.
The electronic camera display method according to a sixth aspect of the present invention is the electronic camera display method according to the fifth aspect, wherein when the request for deleting the file information of the virtual file corresponding to the service supported by the peripheral device is made from the peripheral device, Alternatively, when the interface with the peripheral device is disconnected, a message indicating the end of service is displayed.

  According to this configuration, in the same manner as in the second aspect described above, the service is terminated when the file information deletion request is made because the service is terminated, or when the interface with the peripheral device is disconnected. Is displayed on the electronic camera.

  According to the present invention, in an electronic camera that directly transmits and receives data to and from a peripheral device, a service that can be handled with the peripheral device can be searched and displayed before processing related to the service is performed. It becomes possible.

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are block diagrams showing an example of a digital still camera (DSC) that is an electronic camera and a peripheral device according to an embodiment of the present invention. FIG. 1 is a diagram in which the peripheral device is a printer. Reference numeral 2 denotes a peripheral device that is a storage device (hereinafter referred to as “storage”).

In this embodiment, DSC is applied as an example of an electronic camera, but it is also possible to apply a camera having a moving image shooting function.
In the example of FIG. 1, the DSC 1 transmits and receives data directly to and from the printer 2 via a USB (Universal Serial Bus) cable 3.

  In the DSC 1, the control unit 4 includes a direct operation unit 7 including a service search unit 5, a discovery unit 6, and the like, and comprehensively controls the operation of each unit of the DSC 1. The service search unit 5 performs a process related to a search for a service that can be handled with a peripheral device connected to the DSC 1. The discovery unit 6 detects whether or not the peripheral device connected to the DSC 1 is a direct operation device.

The direct operation device is a device that can directly operate the peripheral device using the UI (user interface) of the DSC 1 when the DSC 1 and the peripheral device are directly connected. Peripheral device.
The direct operation unit 7 transfers and handles data related to services that can be handled with the direct operation device connected to the DSC 1. The imaging unit 8 captures a subject to generate an imaging signal and performs various image processing to create image data. The display unit 9 displays a service that can be handled with the peripheral device, service end, image data, a user interface screen, and the like. The operation unit 10 includes an operation switch or the like for inputting an instruction regarding the operation of the DSC 1. The recording medium 11 stores image data created by the imaging unit 8. The memory 12 stores a virtual file created for each service supported by the DSC 1, file information of a virtual file transmitted from a peripheral device, information for controlling the operation of each part of the DSC 1, and the like.

In the present embodiment, the virtual file created for each service supported by the DSC 1 and the file information of the virtual file transmitted from the peripheral device are both stored in the memory 12. It is also possible to store the data in the memory.
The USB communication IF 13 is an interface that conforms to the USB standard and transmits / receives data to / from a connected device.

  In the printer 2, the control unit 14 includes a direct operation unit 17 including a service search unit 15, a discovery unit 16, and the like, and comprehensively controls the operation of each unit of the printer 2. The service search unit 15 performs processing related to a search for a service that can be handled with the DSC 1 connected to the printer 2. The discovery unit 16 detects whether or not the DSC 1 connected to the printer 2 is a direct operation device. The direct operation unit 17 transfers and handles data related to a service that can be handled with the direct operation device connected to the printer 2. The memory 18 stores a virtual file created corresponding to a print service supported by the printer 2, information for controlling the operation of each unit of the printer 2, and the like. The printing unit 19 performs image printing based on the image data. The USB communication IF 20 is an interface conforming to the USB standard that transmits and receives data to and from a connected device.

On the other hand, in the example of FIG. 2, the DSC 1 transmits and receives data directly to and from the storage 21 via the USB cable 3.
The configuration of the DSC 1 is as shown in FIG.
In the storage 21, the control unit 22 includes a direct operation unit 25 including a service search unit 23, a discovery unit 24, and the like, and comprehensively controls operations of the respective units of the storage 21. The service search unit 23 performs processing related to a search for a service that can be handled with the DSC 1 connected to the storage 21. The discovery unit 24 detects whether the DSC 1 connected to the storage 21 is a direct operation device. The direct operation unit 25 transfers and handles data related to a service that can be handled with the direct operation device connected to the storage 21. The memory 26 stores virtual files created corresponding to storage services supported by the storage 21, information for controlling the operation of each part of the storage 21, and the like. The recording medium 27 stores image data. The USB communication IF 28 is an interface conforming to the USB standard that transmits and receives data to and from a connected device.

The storage 21 is, for example, an optical disk device. In this case, the recording medium 27 is an optical disk (optical disk) such as a CD-RW, MO, DVD-RAM, or the like.
1 and 2, the DSC 1 operates as a USB device, and the printer 2 and the storage 21, which are peripheral devices, operate as a USB host device.

Next, the communication protocol architecture between the DSC 1 and the printer 2 and between the DSC 1 and the storage 21 will be described with reference to FIGS.
FIG. 3 is a diagram illustrating an example of a communication protocol architecture between the DSC 1 and the printer 2.

  In the figure, the direct operation application layer 31, the direct operation layer 32, and the PTP transport layer 33 of the DSC 1 correspond to the above-described direct operation unit 7, the physical communication layer 34 corresponds to the above-described USB communication IF 13, and the discovery 35 Corresponding to the discovery unit 6 described above, the service search 36 corresponds to the service search unit 5 described above.

  On the other hand, the direct operation application layer 37, the direct operation layer 38, and the PTP transport layer 39 of the printer 2 correspond to the direct operation unit 17, the physical communication layer 40 corresponds to the USB communication IF 20, and the discovery 41 corresponds to the above. The service search 42 corresponds to the service search unit 15 described above.

  As described above, in the communication protocol architecture between the DSC 1 and the printer 2, USB is used as the physical communication layers 34 and 40, and PTP (Picture Transfer Protocol) is used as the communication protocol of the transport layers 33 and 39 thereon. Used. This PTP is a protocol mainly used for image transfer in DSC. Further, direct operation layers 32 and 38 for realizing a direct operation are provided above the PTP transport layers 33 and 39, and between the PTP transport layers 33 and 39 and the direct operation layers 32 and 38. Are provided with discovery 35, 41 and service search 36, 42 as software components. In addition, the direct operation application layers 31 and 37 which are the uppermost layers are provided with a storage server 43 / client 44 and a print server 45 / client 46 which are software components. The storage server 43 / client 44 supports the function of transferring image data of DSC 1 to the printer 2, and the storage server 43 transfers image data in response to a request from the storage client 44. The print server 45 / client 46 supports a function of printing image data, and the print server 45 prints image data in response to a request from the print client 46.

On the other hand, FIG. 4 is a diagram illustrating an example of a communication protocol architecture between the DSC 1 and the storage 21.
In the figure, the configuration of each layer of DSC 1 is as already described.
On the other hand, the direct operation application layer 47, direct operation layer 48, and PTP transport layer 49 of the storage 21 correspond to the direct operation unit 25, the physical communication layer 50 corresponds to the USB communication IF 28, and the discovery 51 corresponds to the above. The service search 52 corresponds to the service search unit 23 described above.

  As described above, in the communication protocol architecture between the DSC 1 and the storage 21, USB is used as the physical communication layers 34 and 50, and PTP is used as the communication protocol of the transport layers 33 and 49 thereon. In addition, direct operation layers 32 and 48 for realizing direct operation are provided above the PTP transport layers 33 and 49, and between the PTP transport layers 33 and 49 and the direct operation layers 32 and 48. Are provided with discovery 35, 51 and service search 36, 52 as software components. In addition, the direct operation application layers 31 and 47 which are the uppermost layers are provided with a storage server 43 / client 54 and a storage server 55 / client 56 which are software components. The storage server 43 / client 54 supports the function of transferring the image data of DSC 1 to the storage 21, and the storage server 43 transfers the image data in response to a request from the storage client 54. The storage server 55 / client 56 supports the function of transferring the image data in the storage 21 to the DSC 1 and the function of operating the image data in the storage 21. The storage server 55 is requested by the storage client 56. In response to this, the image data is transferred and the image data in the storage 21 is manipulated.

Next, operations of the above-described DSC 1 and peripheral devices (such as the printer 2 or the storage 21) will be described.
FIG. 5 is a diagram showing an example of the operation flow.
In the figure, when the DSC 1 and the peripheral device are connected via the USB cable 3 (S1), first, negotiation is performed as to whether or not they are PTP compatible devices, and if they are PTP compatible devices, a PTP connection is established. (S2).

  Next, negotiation is performed to determine whether the devices are directly operating devices (S3). If they are direct operation devices, a service search according to the present invention is then performed (S4). In this service search, if a service that can be handled between the DSC 1 and the peripheral device can be searched, then a direct operation connection is established by direct operation connection establishment processing (S5). After establishing the direct operation connection, it becomes possible to execute processing (printing or storing) related to a service that can be handled between the DSC 1 and the peripheral device (S6).

In this operation flow, the discovery (S3) and the service search (S4) are separate processes. However, these processes can be performed as one process.
FIG. 6 is a diagram showing an operation flow when a service that can be handled between the DSC 1 and the peripheral device is searched in the above-described operation flow, and particularly shows a process (S4) relating to the service search in detail. It is a thing.

In the figure, the processing of S1 to S3 is as described above.
In the process related to the service search in S4, first, a file identifier number request signal is transmitted from the peripheral device to the DSC 1 (S4a). Upon receiving this, DSC1 creates a virtual file corresponding to each service supported by the DSC1 (S4b) and stores it in the memory 12.

  In this embodiment, if the service supported by the DSC 1 is a print service, a virtual file corresponding to the print service is displayed. If the service is a storage service, a virtual file corresponding to the storage service is set or the print service is printed. In the case of the storage service, both virtual files are created and stored in the memory 12. These virtual files may be empty files with a file size of 0, and may be created anytime before the subsequent S4c is started.

  When the virtual file is created and stored in the memory 12 as described above, subsequently, a file provided corresponding to each of the files stored in the memory 12 as a response to the file identifier count request in S4a described above. The number of identifiers is transmitted from the DSC 1 to the peripheral device (S4c).

Subsequently, a file identifier list request signal is transmitted from the peripheral device to the DSC 1 (S4d), and as a response, the aforementioned list of file identifiers is transmitted from the DSC 1 to the peripheral device (S4e).
Subsequently, the peripheral device searches for a virtual file corresponding to the service supported by the peripheral device based on the file identifier list acquired in S4e described above in order to detect services that are mutually supported with DSC1. Processing is performed (S4f, S4g, S4h).

  In this embodiment, when the service supported by the peripheral device is the print service (when the peripheral device is the printer 2), the virtual file corresponding to the print service is the storage service (when the peripheral device is a storage device). The virtual file corresponding to the storage service, or the print file and the storage service (when the peripheral device is a device having a printer function and a storage function, for example) The corresponding virtual file and the virtual file corresponding to the storage service are searched.

  In this virtual file search process, for each file identifier in the acquired file identifier list, a signal requesting file information of the file corresponding to the file identifier is transmitted from the peripheral device to the DSC 1 (S4g), and as a response, Corresponding to the service supported by the peripheral device while the process in which the file information (including the file name) is transmitted from the DSC 1 to the peripheral device (S4h) is repeated for the number of file identifiers acquired in S4c. The file information including the same file name as the virtual file to be searched is searched (S4f).

In this embodiment, by searching for such file information, a virtual file corresponding to a service supported by the peripheral device is searched.
In this virtual file search process, when file information including the same file name as the virtual file corresponding to the service supported by the peripheral device is searched, the peripheral device supports each other with the DSC 1. As a service, a service corresponding to the file (virtual file) related to the searched file information is detected (S4i).

In this manner, when services mutually supporting the DSC 1 are detected, a virtual file corresponding to each service supported by the peripheral device is created (S4k), and the peripheral device memory (the memory 18 of the printer 2 or the Stored in the memory 26 of the storage 21.
In this embodiment, when the service supported by the peripheral device is the print service (when the peripheral device is the printer 2), the virtual file corresponding to the print service is the storage service (when the peripheral device is a storage device). The virtual file corresponding to the storage service, or the print file and the storage service (when the peripheral device is a device having a printer function and a storage function, for example) A corresponding virtual file and a virtual file corresponding to the storage service are created and stored in the memory. These virtual files may be empty files with a file size of 0, and may be created anytime before the subsequent S4l is started.

  When the virtual file is created and stored in the memory in this way, the file information (including the file name) of the virtual file is subsequently transmitted from the peripheral device to the DSC 1 (S4l), and a file information transmission response is transmitted as a response. A signal is transmitted from the DSC 1 to the peripheral device (S4m). In the DSC 1, when the file information of the virtual file transmitted from the peripheral device is acquired, the file information is temporarily stored in the memory 12, and from the file information (file name, etc.), the connected peripheral device is connected. A service to be supported is detected, and the detected service is displayed on the display unit 9 (S4n).

  As described above, when a service that supports each other is detected between the DSC 1 and the peripheral device, the above-described direct operation connection establishment process is performed (S5), and both devices are directly operating devices. It is detected (S5a, S5b). Then, the process (print / store) relating to the detected service, which is the process of S6 described above, can be executed. For example, when a specific service is selected from the services displayed on the display unit 9 in S4n described above, processing related to the selected service can be executed (S6a). Thus, the user can use the desired service by selecting and instructing the desired service from the services displayed on the display unit 9.

Next, a display example of the display unit 9 when the service supported by the peripheral device is detected in S4n described above will be described.
FIG. 7A is a partial external view of the back surface of the DSC 1, and FIG. 7B is an enlarged view of the operation unit 10 provided on the back surface of the DSC 1.

As shown in FIG. 2A, on the back surface of the DSC 1, an LCD (Liquid Crystal Display) as the display unit 9 and an operation unit 10 are provided.
As shown in FIG. 5B, the operation unit 10 includes up and down keys 10a and 10b and left and right keys 10c and 10d for selecting an image displayed on the display unit 9, a detected service, and the like. An OK key 10e for confirming the selected one and a cancel key 10f for canceling the confirmed one are provided.

The display unit 9 normally displays a display as a general camera function, for example, a display according to a set shooting mode or playback mode. In S4n described above, a service supported by the peripheral device is provided. When detected, the following display is performed.
FIGS. 8A, 8B, 8C, and 8D are diagrams showing display examples of the display unit 9 when a service supported by the peripheral device is detected in S4n described above.

As shown in FIG. 5A, when the detected service is a print service (when the peripheral device is the printer 2), the item “print” is displayed on the display unit 9.
Also, as shown in FIG. 6B, when the detected service is a storage service (when the peripheral device is the storage 21), the item “Store” is displayed on the display unit 9. .

In addition, as shown in FIG. 8C, when the detected services are the print service and the storage service (when the peripheral device is a device having a printer function and a storage function, for example), the display unit The items “print” and “store” are displayed in FIG.
In addition, after the printer 2 (or storage 21) is connected to the DSC 1 and the display shown in (a) (or (b) of FIG. 6) is made, the storage 21 (or printer 2) is connected to the DSC 1 and the storage is performed in S4n. When a service (or print service) is detected, the display shown in FIG. 9C is performed as a result.

As shown in FIGS. 9A and 9B, when there is one display item, the user can use a service corresponding to the display item by simply pressing the OK button 10e.
Also, as shown in FIG. 5C, when there are a plurality of display items, the user selects the desired service item by pressing the up / down keys 10a and 10b and then presses the OK button 10e. The desired service can be used. When the user presses the up / down keys 10a and 10b to select a desired service item, the selected display item is highlighted so that it can be distinguished from other display items as shown in FIG. Is done. However, before the user selects a display item, a predetermined display item among the plurality of display items is highlighted.

  In the display examples of FIGS. 8A, 8B, 8C, and 8D, only the detected service items are displayed on the display unit 9, but all the DSC 1 supports. The service items may be displayed on the display unit 9, and the service items detected in S4n and the other service items may be displayed in different colors.

  For example, when the services supported by the DSC 1 are the print service and the storage service, and the service supported by the peripheral device is the print service (when the peripheral device is the printer 2), all the services supported by the DSC 1 Items "print" and "storage" are displayed on the display unit 9. Among them, the item "print" of the service (service supported by the peripheral device) detected in S4n and the item "storage" of other services are displayed. Are displayed in different colors.

  Even in the case where the colors are displayed in this way, the user simply presses the OK button 10e as in the display examples of FIGS. 8 (a), (b), (c), and (d) described above. By pressing the up / down keys 10a and 10b to select a desired service item and then pressing the OK button 10e, the desired service can be used. However, in this case, the user cannot select items other than the service (service supported by the peripheral device) detected in S4n among the service items supported by the DSC 1.

FIGS. 9A, 9B, 9C, and 9D are diagrams illustrating another display example of the display unit 9 when a service supported by the peripheral device is detected in the above-described S4n.
FIG. 6A is a diagram showing icons displayed on the display unit 9 in accordance with the detected service. The icon 61 indicates an icon displayed when the detected service is a print service, and the icon 62 indicates an icon displayed when the detected service is a storage service.

As shown in FIG. 6B, when the detected service is a print service (when the peripheral device is the printer 2), an icon 61 corresponding to the print service is displayed on the display unit 9. The
Further, as shown in FIG. 5C, when the detected service is a storage service (when the peripheral device is the storage 21), an icon 62 corresponding to the storage service is displayed on the display unit 9. Is displayed.

  Also, as shown in FIG. 4D, when the detected services are the print service and the storage service (when the peripheral device is a device having a printer function and a storage function, for example), the print service And an icon 62 corresponding to the storage service are displayed on the display unit 9.

  Note that after the printer 2 (or storage 21) is connected to the DSC 1 and the display shown in FIG. 5B (or (c)) is displayed, the storage 21 (or printer 2) is connected to the DSC 1 and the storage is performed in S4n. Even when a service (or print service) is detected, the display shown in FIG.

As shown in FIGS. 7B and 7C, when there is one icon, the user can use the service corresponding to the displayed icon by simply pressing the OK button 10e. .
As shown in FIG. 4D, when there are a plurality of icons, the user selects the desired service icon by pressing the left and right keys 10c and 10d, and then presses the OK button 10e. A desired service can be used. When the user presses the left / right keys 10c and 10d to select a desired service item, the selected icon is highlighted so that it can be distinguished from other icons. However, before the user selects an icon, a predetermined icon among the plurality of icons is highlighted.

FIG. 10 shows the display example described using FIGS. 8A, 8B, 8C, and 9D, and FIGS. 9A, 9B, 9C, and 9D. It is the figure which showed the example of a display when combining with the example of a display demonstrated.
The display example of FIG. 10 shows the case where the print service and the storage service are detected in S4n described above, or after the printer 2 (or storage 21) is connected to the DSC 1 and the print service (or storage service) is detected in S4n. Furthermore, a display example when the storage 21 (or printer 2) is connected to the DSC 1 and the storage service (or print service) is detected in S4n is shown, and the detected service items “print”, “store”, In this example, icons 61 and 62 corresponding to the detected services are displayed at the same time. However, when the user selects a desired service in this display example, it is performed by selecting an item of the desired service as described with reference to FIGS. 8 (c) and 8 (d).

  Further, even when the service item and the corresponding icon are displayed at the same time, all the service items supported by the DSC 1 and the corresponding icons are displayed on the display unit 9 and detected therein. It is also possible to display the service item (service supported by the peripheral device) and an icon corresponding to the item, and the other service item and the corresponding icon in different colors. Also in this case, the user simply presses the OK button 10e or the up / down keys 10a, 10b, as in the example of FIGS. 8 (a), (b), (c), (d) described above. The desired service can be used by depressing and selecting an item of the desired service and then pressing the OK button 10e. However, also in this case, the user cannot select items other than the detected service item (service supported by the peripheral device) among the service items supported by the DSC 1.

Subsequently, an operation when the IF (interface) is disconnected or the service is terminated after the above-described S6 is performed, for example, the connection of the USB cable 3 is disconnected.
FIG. 11A shows the operation when the IF is disconnected, and FIG. 11B shows the operation when the service ends. In FIGS. 4A and 4B, the processes before S5 are omitted.

As shown in FIG. 4A, after IF, when the IF is disconnected after the connection of the USB cable 3 is disconnected after S6, the DSC 1 detects the end of the service, thereby indicating the end of the service. Is displayed on the display unit 9 (S7a).
Also, as shown in FIG. 5B, when the service is terminated after S6, the peripheral device requests DSC 1 to delete the file information of the virtual file corresponding to the terminated service (S6). S8a). That is, a file information deletion request signal is transmitted from the peripheral device to DSC 1 (S8b). Note that the file information of the virtual file that is the target of the deletion request is the file information of the virtual file that was created in S4k of FIG. 6 described above, transmitted to DSC1 in S4l, and stored in the memory 12 in S4n.

  When the file information deletion request signal is transmitted to the DSC 1, the DSC 1 deletes the file information corresponding to the file information deletion request signal from the memory 12 (S8c), and a file information deletion response as a response to the file information deletion request. A signal is transmitted from the DSC 1 to the peripheral device (S8d). In DSC1, when the deletion of the file information is finished, the end of the service is detected thereby, and the fact that the service is finished is displayed on the display unit 9 (S8e).

When there are a plurality of services detected in S4n described above, S8a to S8d are repeated for each service by the number of the services (S8f).
FIGS. 12A, 12B, and 12C are diagrams showing examples of display on the display unit 9 when the end of service is detected in S7a or S8e described above.

  As shown in FIG. 5A, when only the print service is detected in the above-mentioned S4n, the IF is disconnected or the print service ends and the file information of the virtual file corresponding to the print service is deleted. When the request signal is transmitted from the peripheral device to the DSC 1, “print service has been completed” is displayed on the display unit 9.

  In addition, as shown in FIG. 5B, when only the storage service is detected in the above-described S4n, the IF is disconnected or the storage service ends and the file information of the virtual file corresponding to the storage service When the deletion request signal is transmitted from the peripheral device to the DSC 1, “Storage service is completed” is displayed on the display unit 9.

  Also, as shown in FIG. 4C, when the print service and the storage service are detected in the above-described S4n, the IFs related to both services are disconnected, or both services are terminated and the print service is supported. When a deletion request signal for the file information of the virtual file to be processed and the file information of the virtual file corresponding to the storage service is transmitted to the DSC 1, “print / storage service has been completed” is displayed on the display unit 9.

FIGS. 13A, 13B, 13C, and 13D are diagrams illustrating another display example of the display unit 9 when the end of service is detected in S7a or S8e described above.
FIG. 6A shows a display example of the display unit 9 before the end of service is detected. This display example is the same as that shown in FIG. 9 (d).

  In this case, when the IF related to the print service is disconnected, or when the print service is terminated and the file information deletion request signal of the virtual file corresponding to the print service is transmitted to the DSC 1, it is shown in FIG. As described above, the icon 61 corresponding to the print service displayed on the display unit 9 disappears, and only the icon 62 corresponding to the storage service is displayed.

  Further, when the IF related to the storage service is disconnected, or when the storage service is ended and the file information deletion request signal of the virtual file corresponding to the storage service is transmitted to the DSC 1, as shown in FIG. In addition, the icon 62 corresponding to the storage service displayed on the display unit 9 disappears, and only the icon 61 corresponding to the print service is displayed.

  Also, if the IF relating to the print service and the storage service is disconnected, or the print service and the storage service are terminated, the request for deleting the file information of the virtual file corresponding to the print service and the file information of the virtual file corresponding to the storage service When the signal is transmitted to the DSC 1, neither the icon 61 corresponding to the print service nor the icon 62 corresponding to the storage service displayed on the display unit 9 is displayed as shown in FIG. 13 (d).

  In this embodiment, the virtual file corresponding to the service supported by the DSC 1 and the virtual file corresponding to the service supported by the peripheral device are created during the service search and stored in the memory. It is also possible to store in the memory in advance at the time of factory shipment.

In the present embodiment, the DSC 1 and the peripheral device support the print service, the storage service, or both services, but it is also possible to support one or more other services. .
In the present embodiment, the DSC 1 and the peripheral device are not limited to those described above. For example, as the DSC 1, a PDA (Personal Digital Assistant) having an electronic camera function, a mobile phone having an electronic camera function, or the like It is also possible to apply a FAX apparatus that supports a FAX service as a peripheral apparatus.

In this embodiment, data transmission / reception between the DSC 1 and the peripheral device is performed by wire. However, it is also possible to perform the transmission / reception by radio (light, sound wave, radio wave, etc.).
In this embodiment, the USB communication IF is applied as the physical communication layer of the DSC 1 and the peripheral device, but other communication IFs such as IEEE 1394 and LAN (Local Area Network) can be applied. Further, although PTP is applied as a transport layer communication protocol, other communication protocols can also be applied.

  Although the electronic camera and the display method thereof according to the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various improvements and modifications may be made without departing from the gist of the present invention. Of course.

1 is a block diagram illustrating an example of a DSC that is an electronic camera and a printer that is a peripheral device according to an embodiment of the present invention. FIG. 1 is a block diagram illustrating an example of a DSC that is an electronic camera and a storage that is a peripheral device according to an embodiment of the present invention. FIG. It is the figure which showed an example of the communication protocol architecture between DSC and a printer. It is the figure which showed an example of the communication protocol architecture between DSC and a storage. It is the figure which showed an example of the operation | movement flow of DSC and a peripheral device. FIG. 6 is a diagram illustrating an operation flow when a service that can be handled between a DSC and a peripheral device is searched in the operation flow of FIG. 5. (a) is a partial external view of the back surface of the DSC, and (b) is an enlarged view of an operation unit provided on the back surface of the DSC. (a), (b), (c), (d) is a diagram showing a display example of the display unit when a service supported by a peripheral device is detected in S4n. (a), (b), (c), (d) is a figure explaining the other example of a display of a display part when the service which a peripheral device supports is detected in S4n. Display examples described using FIGS. 8 (a), (b), (c), (d) and display examples described using FIGS. 9 (a), (b), (c), (d) It is the figure which showed the example of a display when combining. (a) is a diagram showing the operation when the IF is disconnected, and (b) is a diagram showing the operation when the service is terminated. (a), (b), (c) is the figure which showed the example of a display of a display part when service end is detected in S7a or S8e. (a), (b), (c), (d) is a figure explaining the other example of a display of a display part when service end is detected in S7a or S8e.

Explanation of symbols

1 DSC
2 Printer 3 USB cable 4 Control unit 5 Service search unit 6 Discovery unit 7 Direct operation unit 8 Imaging unit 9 Display unit 10 Operation unit 11 Recording medium 12 Memory 13 USB communication IF
14 Control unit 15 Service search unit 16 Discovery unit 17 Direct operation unit 18 Memory 19 Printing unit 20 USB communication IF
21 Storage 22 Control Unit 23 Service Search Unit 24 Discovery Unit 25 Direct Operation Unit 26 Memory 27 Recording Medium 28 USB Communication IF
31 Direct Operation Application Layer 32 Direct Operation Layer 33 PTP Transport Layer 34 Physical Communication Layer 35 Discovery 36 Service Search 37 Direct Operation Application Layer 38 Direct Operation Layer 39 PTP Transport Layer 40 Physical Communication Layer 41 Discovery 42 Service Search 43 Storage Server 44 Storage client 45 Print server 46 Print client 47 Direct operation application layer 48 Direct operation layer 49 PTP transport layer 50 Physical communication layer 51 Discovery 52 Service search 54 Storage client 55 Storage server 56 Storage client 61 Icon 62 Icon

Claims (6)

An electronic camera that sends and receives data directly to and from a peripheral device,
First storage means for storing a virtual file created corresponding to each service supported by the electronic camera;
A virtual corresponding to the searched service transmitted from the peripheral device when a virtual file corresponding to the service supported by the peripheral device is searched from the file stored in the first storage means in the peripheral device. Second storage means for storing file information of the file;
Display means for displaying a service corresponding to file information of the virtual file stored in the second storage means;
An electronic camera comprising: When a request to delete file information of a virtual file corresponding to a service supported by the peripheral device is issued from the peripheral device, or when the interface with the peripheral device is disconnected, the display means indicates that the service has ended. indicate,
The electronic camera according to claim 1. The service is one or both of a print service and a storage service.
The electronic camera according to claim 1, wherein the electronic camera is an electronic camera. The peripheral device supporting the storage service is an optical disc device;
The electronic camera according to claim 3. An electronic camera display method for directly sending and receiving data to and from a peripheral device,
Storing a virtual file created corresponding to each service supported by the electronic camera in the first storage unit;
The virtual device corresponding to the searched service transmitted from the peripheral device when a virtual file corresponding to the service supported by the peripheral device is searched from the file stored in the first storage unit in the peripheral device. Storing file information of the file in the second storage unit;
Displaying a service according to file information of the virtual file stored in the second storage unit;
An electronic camera display method characterized by the above. When a request to delete file information of a virtual file corresponding to a service supported by the peripheral device is issued from the peripheral device, or when the interface with the peripheral device is disconnected, a message indicating that the service has ended is displayed.
The display method of the electronic camera according to claim 5.

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