JP2009284320A - Image display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that, while which and how many copies of image are printed is decided instantly at the unveiling of photographs such as at a home party or the like in some cases, a taken image can not be printed out if a camera is re-connected to a printer when the camera is connected to a liquid crystal projector to display the taken image, and that the display of the liquid crystal projector is also interrupted during the printing. <P>SOLUTION: It is assumed that a liquid crystal projector and a camera is connected. On that basis, a function that relays a printing request from the camera to the liquid crystal projector is added. Thereby, a sequential operation to print out a desired image by a printer with confirming the image on the liquid crystal projector can be achieved by only an operation of the camera. In addition, the function that relays the printing request is achieved by adjusting output performance of both output equipments of the liquid crystal projector and the printer, thereby the output equipment can be switched arbitrarily on the camera side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display device.

  Images taken with a digital camera are recorded as digital data on a recording medium in the digital camera. In general, such a recording medium is inserted into a display device such as a projector or a television to display a photographed image so that a relative or an acquaintance can enjoy watching the displayed image. Operations such as switching of the display image and rotation of the display image are performed by a remote controller of the display device.

  On the other hand, regardless of the manufacturer, there is a direct printing function capable of printing by directly connecting a digital camera and a printer and operating the digital camera. The direct printing function is realized by mounting a standard called PictBridge (registered trademark) on digital cameras and printers.

  The direct printing function allows the user to print an image desired by displaying an image to be printed on the display unit of the digital camera and operating a print start button or the like. It is also possible to print the desired image by the user in advance and print the designated image group. When printing is designated, a DPOF file “AUTPRINT.MRK” describing the contents designated for printing is recorded on the recording medium of the digital camera. When printing a print-designated image, the contents described in the DPOF file are interpreted and the printer prints.

  Recently, a liquid crystal projector corresponding to the PictBridge standard has been devised. Use cases include connecting a liquid crystal projector to a camera, transferring an image held by the camera to the liquid crystal projector, and displaying the image. At this time, if there is an image to be printed in the camera, the desired image cannot be printed unless the camera is disconnected from the liquid crystal projector and reconnected to the printer.

As an example of the above, Patent Document 1 below can be cited.
JP 2006-157324 A

  When presenting a photo at a home party or the like, it is often determined on the spot which image is to be printed. When a liquid crystal projector and a camera are connected by PictBridge and a captured image is displayed, the captured image cannot be printed unless the camera is reconnected to the printer. In addition, the display of the liquid crystal projector is interrupted during that time.

  Therefore, consider adding a PictBridge device function in addition to the PictBridge host function to connect the camera to the liquid crystal projector and connecting the liquid crystal projector to a PictBridge compatible printer.

  In addition, a function for relaying the print request from the camera to the printer is added to the liquid crystal projector. By doing so, a series of operations of printing a favorite image with a printer while checking the image with a liquid crystal projector can be realized only by operating the camera.

In order to solve the above problems, an image display device according to the present invention provides:
First communication means with the image recording device;
A second communication means with the image printing apparatus;
Storage means for storing information received from the image recording device;
Output destination management means for associating the display capability held by the image display apparatus and the print capability held by the printing apparatus with the output destination of the image;
Display capability switching means for switching the display capability of the image display device as necessary;
Display capability camouflaging means for camouflaging the printing capability of the printing apparatus received from the second communication unit as the display capability of the image display apparatus with respect to the first communication unit;
An image display device comprising:

  In the present invention, in the configuration in which the image recording device and the image display device are connected, and the image display device and the image printing device are connected to each other, the output destination of the image held in the image recording device only by the operation from the image recording device is displayed as an image. It is possible to arbitrarily switch between an apparatus and an image printing apparatus.

  Next, details of the present invention will be described in accordance with the description of the embodiments.

  FIG. 1 is a diagram showing a general configuration of a liquid crystal projector according to an embodiment of the present invention. Hereinafter, the configuration of the liquid crystal projector in the embodiment of the present invention will be described.

  Reference numeral 100 denotes a liquid crystal projector according to the present embodiment.

  Reference numeral 109 denotes a system control circuit that controls the entire liquid crystal projector 100, and reference numeral 101 denotes a memory that temporarily stores constants, variables, images, and the like for operation of the system control circuit 109. Reference numeral 102 denotes an electrically erasable / recordable nonvolatile memory in which a firmware program of the system control circuit 109 is recorded. Capability information notified to the digital camera by the liquid crystal projector 100 can be recorded here.

  Reference numeral 103 denotes an operation unit for inputting various operation instructions of the system control circuit 109. The operation unit 103 includes one or a combination of a switch, a dial, a touch panel, pointing by eye-gaze detection, a voice recognition device, and the like. Reference numeral 120 denotes a remote control light receiving unit for inputting various operation instructions of the system control circuit 109, and can receive remote control keys from an infrared remote controller attached to the liquid crystal projector 100.

  Reference numeral 104 denotes a power supply control means, which includes a DC-DC converter, a switch circuit that switches a block to be energized, etc., detects an AC adapter, and based on the detection result and an instruction from the system control circuit 109, the DC-DC converter And a necessary voltage is supplied to each part including the fan for a necessary period. Reference numeral 105 denotes power supply means including an AC adapter.

  Reference numeral 106 denotes a USB interface for connecting to a digital camera, a USB memory, or the like using USB. Reference numeral 121 denotes a USB interface for connecting to a printer or the like using USB. Reference numeral 107 denotes a communication interface for network connection. It is possible to notify a system that centrally manages the liquid crystal projector of a state such as a failure of the liquid crystal projector.

  An image processing circuit 108 digitally converts a JPEG image read from a digital camera, a USB memory, or the like into an RGB signal composed of three color signals of red (R) / green (G) / blue (B).

  Reference numeral 111 denotes a projector video signal processing circuit that performs signal processing for converting a digitized RGB signal into a signal suitable for the projector apparatus. Examples of such signal processing include interlaced progressive conversion processing, frame rate conversion processing, and resolution conversion processing. A frame memory 110 is used for signal processing when the projector video signal processing circuit 111 converts the signal into a signal suitable for the projector, and can record an RGB signal of one frame or more. A signal level adjustment circuit 112 adjusts the output from the projector video signal processing circuit 111 to a signal level suitable for the projection image projected by the projector apparatus. A liquid crystal driver 113 drives the liquid crystal panel 117 based on the output signal of the signal level adjustment circuit 112.

  Reference numeral 116 denotes a lamp, which is a light source for projecting a projection image on the screen 119. Reference numeral 105 denotes power supply means for supplying power to the lamp 116. A lamp driving circuit (ballast) 115 generates a stable high voltage to be supplied to the lamp 116 from the electric power supplied from the power supply means 105. An R / G / B color filter is bonded to the liquid crystal panel 117, and the light projected from the lamp 116 is transmitted and blocked in accordance with the RGB image. The lens group 118 forms the RGB color images that have passed through the liquid crystal panel 117 on the screen 119 and changes the size of the projected image. The screen 119 provides a projection surface on which a video signal is imaged.

  FIG. 2 is a diagram illustrating a configuration of a digital camera, a liquid crystal projector, and a printer in the embodiment of the present invention.

  The liquid crystal projector 100 is connected to the digital camera 200 via a USB cable 202 inserted into the USB interface 106. The liquid crystal projector 100 is also connected to the printer 201 via a USB cable 203 inserted into the USB interface 121. Although not shown, the digital camera 200 has a recording medium that holds a captured image and a USB interface, and is equipped with a function that allows the user to select and print a captured image when connected to a printer. Similarly, the printer 201 has a paper discharge port for discharging printed paper and a USB interface, and is equipped with a function for printing a transmitted captured image when connected to a digital camera.

  Note that the communication medium of the system constructed in this embodiment is not limited to USB, but may be a wired / wireless LAN, Bluetooth, or the like, and this embodiment does not depend on the form of the system to be constructed.

  Hereinafter, based on the system configuration of the digital camera, the liquid crystal projector, and the printer, in the present embodiment, the liquid crystal projector and the digital camera, and the liquid crystal projector and the printer are connected. A method for printing an image held by a digital camera with a printer by relaying to a projector will be described.

  In the present invention, not only the image held by the digital camera is printed from the printer via the liquid crystal projector, but also the output destination of the image is arbitrarily divided between the liquid crystal projector and the printer.

  Control of the liquid crystal projector based on the following description is executed by a firmware program existing on the nonvolatile memory 102 of FIG.

  FIG. 26 is a diagram showing the configuration requirements of the liquid crystal projector in the embodiment of the present invention. A first communication unit 2600, a second communication unit 2601, a first / second storage unit 2602, an output capability synthesis unit 2603, an output destination switching unit 2605, an association unit 2604, and an output unit 2606 are included. The first communication unit 2600 communicates with the digital camera 200. In addition, data communicated with the digital camera 200 is notified to the first storage unit 2602, and an image output request from the camera 200 is notified to the association unit 2604. The second communication unit 2601 performs communication with the printer 201. In addition, Capability information of the liquid crystal projector 100 and the printer 201 is notified to the second storage unit 2602. As described above, the first / second storage unit 2602 stores the information transferred from the camera 200 by the first communication unit, and stores the Capability information of the liquid crystal projector 100 and the printer 201 by the second communication unit. . The output capability combining unit 2603 reads the Capability information of the liquid crystal projector 100 and the printer 201 (here, Capability information for determining the output destination is paperSizes) from the second storage unit, and combines the paperSizes for determining the output destination. To notify the first communicator of the synthesis result of Capability. The associating unit 2604 receives the Capability synthesis result from the output capability synthesizing unit 2603, associates whether the output destination of each paperSizes value is the printer 201 or the liquid crystal projector 100 itself, and further issues an output request from the camera 200. The output destination is determined from the paperSizes received through the first communication means and set in the output request, and notified to the output destination switching means. The output destination switching unit 2605 transmits information necessary for image display corresponding to the output destination to the corresponding output destination (second communication unit 2601 or output unit 2606) based on the designation from the association unit 2604. The output unit 2606 is a unit for the liquid crystal projector 100 to display an image.

  FIG. 3 is a view showing the back surface of the digital camera 200 according to the embodiment of the present invention.

  On the back side, a switch 300, a direct print button 301, a SET button 302, an up / down / left / right button 303, a MENU button 304, and a liquid crystal monitor 305 are provided.

  The changeover switch 300 is a switch for switching a mode for performing photographing or displaying a photographed image.

  A direct print button 301 is a button used when printing an image displayed on the liquid crystal monitor 305 by direct printing. Direct printing is a function for printing an image displayed on the liquid crystal monitor 305, and there are two types of printing methods: pressing the direct print button 301 or operating from the screen shown in FIG. The difference between the two types of printing methods is that only one display image can be set for printing with the former method, whereas a plurality of display images can be printed with the latter method.

  When connected to the liquid crystal projector, the lamp of the direct print button 301 is turned on. When the direct print button 301 is pressed, a direct print processing screen shown in FIG. 5 is displayed.

  A SET button 303 is a button used when, for example, setting values are confirmed. When pressed in this state, a screen for direct designation printing shown in FIG. 4 is displayed. The up / down / left / right button 303 is used to move the cursor up / down / left / right when selecting a menu, or to display the next image or the previous image when a plurality of images are displayed.

  FIG. 4 is an example of a screen related to direct designation printing with the digital camera 200 according to the embodiment of the present invention.

  In direct designation printing, only the image designated in FIG. 3 is printed. The direct print setting information display 401 displays information on the set paper size, paper type, and layout.

  When the print button 400 is selected and the SET button 302 is pressed, a printing screen shown in FIG. 5 is displayed.

  FIG. 5 is an example of a direct print processing in-progress screen when the direct print button 301 is pressed on the digital camera 200 according to the embodiment of the present invention.

  When the direct print button 301 is pressed in FIG. 3, print processing is performed. It is displayed that the printing process is being performed.

  When the cancel button 500 is selected and the SET button 302 is pressed, a print processing cancel confirmation screen shown in FIG. 7 is displayed.

  FIG. 6 is an example of a print processing screen in the digital camera 200 according to the embodiment of the present invention.

  The printing process comment 600 displays that the printing process is being performed and the progress of the printing process. N indicates the number of sheets set as a whole.

  FIG. 7 is an example of a print processing cancellation confirmation screen in the digital camera 200 according to the embodiment of the present invention.

  When the cancel button 700 is selected and the SET button 302 is pressed, the printing process is canceled and the screen shown in FIG. 3 is restored.

  Select the continue button 701 and press the SET button 302 to continue the printing process.

  FIG. 8 is an example of an error screen on which printing can be resumed by the digital camera 200 according to the embodiment of the present invention.

  When the cancel button 800 is selected and the SET button 302 is pressed, the printing process is canceled and the screen shown in FIG. 3 is restored.

  After removing the cause of the error, select the Continue button 801 and press the SET button 302 to continue the printing process.

  FIG. 9 is an example of an error screen in which printing cannot be resumed with the digital camera 200 according to the embodiment of the present invention.

  When the cancel button 900 is selected and the SET button 302 is pressed, the screen display returns to that shown in FIG.

  FIG. 10 is a diagram showing a system model of DPS in the embodiment of the present invention.

  The DPS architecture for realizing the PictBridge standard is a server / client model, and there are Print Server 1001 / Print Client 1002 and Storage Client 1003 / Storage Server 1004. (Acronym for DPS: Digital Photo Solution for Imaging Device). Basically, each DPS operation is completed by a sequence in which the Server responds to the request from the Client and returns the result to the Client. Each DPS event is completed by a sequence in which the Client responds to the notification issued from the Server and returns a receipt confirmation to the Server.

  Specifically, the Print Server 1001 of the liquid crystal projector 100 responds in response to a print request from the Print Client 1002 of the digital camera 200. Subsequently, the storage client 1003 of the liquid crystal projector 100 requests image data to project an image, and the storage server 1004 of the digital camera 200 returns the image data. In response to the issuance notification of the DPS event such as the device status from the print server 1001 of the liquid crystal projector 100, the print client 1002 of the digital camera 200 returns a confirmation of the receipt of the DPS event.

  11, 27, and 28 are diagrams showing DPS commands and events in the embodiment of the present invention.

  All DPS commands and events are described in XML format.

  A command for confirming what service function the PictBridge-compatible device has is DPS_ConfigurePrintService, which describes the DPS version, vendor name, product name, serial number, and the like. Reference numeral 1101 denotes a command DPS_ConfigurePrintService (input) transmitted by the Print Client 1002. 1102 is configurePrintService (output) that the Print Server 1001 responds to the command, and the Result value is described.

  A command for inquiring the liquid crystal projector 100 about a settable capability is DPS_GetCapability (input) 1103. You can inquire about quality, paper size, paper type, file type, date printing, file name printing, image optimization, layout, fixedSize, and trimming capabilities. Reference numeral 1103 denotes a command DPS_GetCapability that the Print Client 1002 transmits to inquire about the paper size. A print server 1001 responds to the command 1104 and describes a Result value and a paper size (standard, L size, 2L size, etc.) that can be set in the liquid crystal projector.

  A command for requesting printing from the digital camera 200 is DPS_StartJob. The print request parameters include print settings and print information. In the print settings, contents (quality, paper size, paper type, file type, date printing, file name printing, image optimization, layout, fixedSize, and trimming) set by the user operation of the digital camera 200 are described. The print information describes an image file ID, the number of prints, and the like for one or more print images designated for printing. In order to set a plurality of prints of the same image in DPS_StartJob 405, the number of sheets to be printed may be specified with a <copies> tag subordinate to the <printInfo> tag. In addition, by describing a plurality of <printInfo> tags in the DPS_StartJob 1105, it is possible to set a plurality of prints of the same image. This is a command DPS_StartJob that the Print Client 1002 requests to print. Reference numeral 1106 denotes a print server 1001 responding to the command, and a Result value is described.

  A command for canceling printing from the digital camera 200 is DPS_AbortJob. Reference numeral 1111 denotes a command DPS_AbortJob that the Print Client 1002 transmits to cancel printing. Reference numeral 1112 denotes a print server 1001 responding to the command, in which a Result value is described.

  A command for resuming printing from the digital camera 200 is DPS_ContinueJob. Reference numeral 1113 denotes a command DPS_ContinueJob that the Print Client 1002 transmits to resume printing. Reference numeral 1114 denotes a response from the Print Server 1001 to the command, in which a Result value is described.

  An event for notifying the printing status from the liquid crystal projector 100 is DPS_NotifyJobStatus, which describes the progress of printing, the total number of prints, and the like. Reference numeral 1108 denotes an event DPS_NotifyJobStatus that the Print Server 1001 transmits to notify the printing status. Reference numeral 1107 denotes a print client 1002 responding to the command, in which a Result value is described.

  The event for notifying the device status of the liquid crystal projector 100 from the liquid crystal projector 100 is DPS_notifydeviceStatus, printing status such as idle / printing / pause, error contents such as image file, Capability change presence, new print job accepted Information such as whether or not it is possible is described. Reference numeral 1110 denotes an event DPS_NotifyDeviceStatus that the Print Server 1001 transmits to notify the device status. Reference numeral 1109 denotes a print client 1002 responding to the command, and a Result value is described.

  A command for obtaining a file ID of a necessary image from the liquid crystal projector 100 is DPS_GetFileID, and an image file path and the like are described. Reference numeral 1121 denotes a command DPS_GetFileID transmitted by the Storage Client 1004 to acquire an image file ID. Reference numeral 1120 denotes a response from the Storage Server 1003 to the command, in which a Result value and the file ID are described.

  A command for obtaining necessary image file information from the liquid crystal projector 100 is DPS_GetFileInfo. Reference numeral 1123 denotes a command DPS_GetFileInfo transmitted by the Storage Client 1004 to acquire image file information, which describes the file ID of the image whose information is to be acquired. Reference numeral 1122 denotes a response to the command from the Storage Server 503, which describes the Result value, the file type, file size, thumbnail format, and thumbnail size of the image.

  A command for acquiring a necessary image from the liquid crystal projector 100 is DPS_GetFile. Reference numeral 1125 denotes a command DPS_GetFile transmitted by the Storage Client 1004 to acquire an image, which describes the file ID of the image whose information is to be acquired. Reference numeral 1124 denotes a response from the storage server 1003 to the command, in which a Result value and the size of the acquired image are described. Although not shown, there is also a command DSP_GetPartialFile that acquires an image by dividing it. DPS_GetPartialFile may be used instead of DPS_GetFile.

  FIG. 12 is a sequence diagram of the reacquisition method when the Capability information of the liquid crystal projector in the embodiment of the present invention changes.

  As 1201, when the Capability of the liquid crystal projector 100 changes, the Print Server 1001 issues a DPS event DPS_NotifyDeviceStatus 1109 to the Print Client 1002. At this time, the value of CapabilityChanged, which is one of the parameters of DPS_NotifyDeviceStatus 1109, is True. In 1202, the Storage Server issues DPS_GetCapability 1103 to the Storage Client and acquires the Capability of the liquid crystal projector 100.

  FIG. 13 is a diagram showing a connection sequence of the camera, the liquid crystal projector, and the printer in the embodiment of the present invention. Although the sequence is slightly different depending on whether the camera or the printer is connected to the liquid crystal projector first, FIG. 13 shows a sequence connected from the printer.

  First, when the liquid crystal projector and the printer are connected, the DPS Discovery 1309 shown in FIG. 14 flows to establish the connection at the DPS level. Next, DPS_ConfigurePrintService 1101 flows, and DPS_GetCapability 1103 notifies Capability of the printer 201 to the second communication means (1307) of the liquid crystal projector 100 1312. The second communication unit 1307 notifies the capability combining unit 1303 of the capability of the printer 201 1313. Then, the capacity combining unit 1303 combines 1315 Capability (here, paperSizes) that is an output destination determination condition so as not to overlap between the Capability stored in the liquid crystal projector 100 itself and the Capability of the printer 201. . Next, the capability combining unit 1303 requests the association unit 1304 to associate 1316 each value of the paperSizes of the liquid crystal projector 100 and the printer 201 with the output destination device. The associating unit 1304 reads the Capability information of both devices from the storage unit 1306 and associates the paperSizes merged in 1317 and 1315 with the output destination, and the capability combining unit 1303 changes the Capability to the first communication unit 1302. This is notified 1318. In association 1303, paperSizes standardized by the PictBridge standard is set as the paperSize of the printer 201, and paperSizes expanded by the vendor is set as the paperSize of the liquid crystal projector 100. Thereafter, 1304 receives the DPS_startJob 1105 from the camera 200, and associates the printer 201 as the output destination if the paperSizes set therein is a standard code, and if it is a vendor extension code, the liquid crystal projector 100. Thereafter, similarly to the connection of the printer 201, the DPS Discovery 1309 DPS_ConfigurePrintService 1101, DPS_GetCapability 1103, and the PTP operation flow, and the connection with the camera 200 is completed. In DPS_GetCapability 1103 when connecting to the camera 200, the camera 200 is notified of Capability information including paperSizes merged in 1315.

  FIG. 14 is a sequence diagram of DPS Discovery shown in FIG. 13 in the embodiment of the present invention. In the PictBridge standard, this DPS Discovery 1309 is performed after a PTP connection is established between both devices using a USB connection as a trigger. Both the liquid crystal projector 100 and the digital camera 200 employ PTP (PTP is an acronym for Picture Transfer Protocol) as a communication protocol, the liquid crystal projector 100 operates as a PTP Initiator, and the digital camera 200 operates as a PTP Responder. . A PTP Initiator is a device that initiates a session and issues a PTP command to the Responder. A PTP Responder is a device that returns a response to a PTP command from a PTP Initiator.

  First, in 1401, the PTP Initiator issues GetDeviceInfo to the PTP Responder in order to acquire information about the digital camera 200. The PTP command is composed of three phases, Command, Data, and Response. In addition, only the Data phase is not essential, and it differs for each command including the direction of data. Normally, data is transferred in the direction specified for each command, and the response to that is returned as a response.

  In 1402, the PTP Initiator issues an OpenSession to the PTP Responder to notify the start of the session.

  In 1403, the PTP Initiator issues GetNumObject to the PTP Responder, and acquires the number of scripts stored in the storage of the digital camera 200.

  In 1404, the PTP Initiator issues GetObjectHandles to the PTP Responder, and acquires the handle of the script stored in the storage of the digital camera 200.

  In 1405, the PTP Initiator issues GetObjectInfo to the PTP Responder, and acquires empty script file information DDISCVRY.DPS from the PTP Responder, thereby confirming that the digital camera 200 has the DPS function.

  In 1406, the PTP Responder is also notified of the empty script file information HDISCVRY.DPS from the Data phase of SendObjectInfo issued by the PTP Initiator, thereby confirming that the liquid crystal projector 100 has the DPS function. This completes the DPS Discovery 1309.

  FIG. 15 is a diagram showing an example of a connection sequence in the embodiment of the present invention. FIG. 15 shows a sequence connected from the camera.

  First, when the camera 200 is connected to the liquid crystal projector 100, DPS Discovery 1309, DPS_ConfigurePrintService 1101, and DPS_GetCapability 1103 flow in order, and PictBridge connection is completed. After that, when the liquid crystal projector 100 and the printer 201 are physically connected, DPS Discovery 1309, DPS_ConfigurePrintService 1101, and DPS_GetCapability 1103 sequentially flow, and the PictBridge connection is completed. Next, the Capability information of the printer 201 is notified from the second communication unit 1307 to the second storage unit 1306 and the capability combining unit 1303 (1501, 1502). When this is notified, in 1303, paperSizes are combined 1503 so as not to overlap between the Capability stored in the liquid crystal projector 100 and the Capability of the printer 201. Next, the capability composition unit 1303 requests the association unit 1304 to associate 1504 the paperSizes of the liquid crystal projector 100 and the printer 201 with the output destination device. The associating unit 1304 reads the paperSizes information of both devices from the first storage unit 1306, associates each Capability merged in 1505 and 1503 with its output destination, and the capability combining unit 1303 changes the Capability to the communication unit 1302. 1506 to notify that it has been done. When the Capability change is notified, the first communication unit 1302 issues a DPS_notifyDeviceStatus 1110 to the camera 200 and notifies that the Capability has been changed by using the parameter <CapabilityChanged>. As a result, DPS_GetCapability 1103 is issued from the camera 200 and the change in Capability is transmitted to the camera.

  FIG. 16 is a diagram showing a transfer sequence to the printer 201 according to the embodiment of the present invention.

  When the DPS_startJob 1105 is issued from the camera 200, the first communication unit 1302 notifies the association unit 1304 of the received parameter PaperSize of the DPS_startJob and makes an output destination inquiry 1601. Then, it is confirmed 1602 that the second communication means is not communicating, and when the output destination is the printer 201, the parameter of DPS_startJob 1105 is stored in the first storage means 1305 and a response of DPS_startJob 1105 is returned. Thereafter, the image information is acquired by DPS_GetFileInfo 1122, the image file is acquired by DPS_GetFile 1124, and the completion of image transfer is notified to the camera 200 by DPS_notifyDeviceStatus 1109. After that, the communication unit 1302 notifies the image transfer completion notification 1605 to the associating unit 1304, and the associating unit 1304 that has received the notification reads the parameter PaperSize of the DPS_startJob from the storage unit 1305 and outputs it based on it. , Specify the output destination to the output destination switching means 1610, and issue a transfer start request 1607. Then, the output destination switching unit 1610 issues an output request according to the output destination information received in 1607. If the output destination is the printer 201, the 1610 issues a print request 1611 to the second communication unit 1307. After that, communication is performed between the second communication unit 1307 and the printer, and a sequence for performing image transfer such as DPS_startJob 1105, DPS_GetFileInfo 1122, DPS_GetPartialFile 1126, and DPS_notifyDeviceStatus 1109 flows. Among them, in DPS_GetFileInfo 1122 and DPS_GetFile 1124, data relating to images is read from the first storage unit 1305 as 1608 and 1609, respectively.

  FIG. 17 is a diagram illustrating an example of a display sequence on the liquid crystal projector 100 according to the embodiment of the present invention.

  When the DPS_startJob 1105 is issued from the camera 200, the first communication unit 1302 notifies the association unit 1304 of the received parameter PaperSize of the DPS_startJob and makes an output destination inquiry 1702. When the output destination is the liquid crystal projector 100, the parameter of the DPS_startJob 1105 is stored in the storage unit 1305 and the response of the DPS_startJob 1105 is returned. Thereafter, the image information is acquired by DPS_GetFileInfo 1122, the image file is acquired by DPS_GetPartialFile 1126, and the completion of image transfer is notified to the camera 200 by DPS_notifyDeviceStatus 1109. After that, the communication means 1302 notifies the image transfer completion notice 1705 to the associating means 1304, and the associating means 1304 receiving it reads the parameter PaperSize of DPS_startJob from the first storage means 1305, and based on it. The output destination is confirmed, and a display request is notified to the output destination switching means 1610 1707. Thereafter, the output destination switching unit 1610 issues a display request 1708 to the display unit 1701 for the output request notification, and projects the transferred image on the screen 119.

  FIG. 18 is a diagram illustrating a sequence in which a communication error occurs between the camera 200 and the liquid crystal projector 100 according to the embodiment of the present invention.

  When the DPS_startJob 1105 is issued from the camera 200, the communication unit 1302 notifies the association unit 1304 of PaperSize and makes an output destination inquiry 1801. If the output destination is the printer 201, the second communication unit 1307 confirms 1802 whether communication is currently being performed with the printer 201, the DPS_startJob 1105 parameters are stored in the first storage unit 1305, and the DPS_startJob 1105 Returns a response. Thereafter, image information is acquired by DPS_GetFileInfo 1122, and an image file is acquired by DPS_GetFile 1124. However, when an error is detected due to an abnormality in the content of the acquired file, the first communication unit 1302 sets an error code in the parameter of DPS_notifyDeviceStatus 1109 and notifies the camera 200 of it. Note that the error between the camera 200 and the liquid crystal projector is not limited to the file abnormality.

  FIG. 19 is a diagram showing a sequence in which an error occurs when there is a print request from the camera 200 during communication between the liquid crystal projector 100 and the printer 201 in the embodiment of the present invention.

  When the communication by PictBridge has already been performed between the second communication unit 1307 and the printer 201 (for example, DPS_GetPartialFile is being executed), the DPS_startJob 1105 prints an image from the camera 200 to print the image on the printer 201. When issued, the communication unit 1302 notifies the association unit 1304 of PaperSize and makes an output destination inquiry 1501. If the output destination is the printer 201, the communication unit 1307 confirms 1903 whether communication is currently being performed with the printer 201. If communication is in progress (not limited to PictBridge), not_execute is returned as a response to the DPS_startJob 1105. Then, the printer busy code is set in the parameter of DPS_notifyDeviceStatus 1109 to notify the camera 200. At this time, communication between the liquid crystal projector 100 and the printer 201 is not affected.

  FIG. 20 is a diagram illustrating a sequence in which a communication error occurs between the liquid crystal projector 100 and the printer 201 according to the embodiment of the present invention.

  As shown in 1105 to 1609 in FIG. 16, a print request is issued from the camera 200 to the printer 201, and an image file is transferred between the second communication unit 1307 and the printer 201. When an error occurs, the printer 201 issues a DPS_notifyDeviceStatus 1109 in which a vendor extended code is set as an error code to the second communication unit 1307. When the second communication unit 1307 receives the request, the association unit 1304 requests the first communication unit 1302 to issue an error notification to the camera 200. As a result, the first communication means notifies the camera 200 of an error using DPS_notifyDeviceStatus 1109.

  FIG. 21 is a rear view of the camera 200 in the present embodiment. Reference numeral 2100 denotes a shutter button, and the transfer mode 2101 indicates which mode is currently output to the liquid crystal projector 100 or the printer 200. The shutter button 2100 is effective when it includes a vendor extension operation of the liquid crystal projector when Capability is notified from the liquid crystal projector 100 to the camera 200. Every time 2100 is pressed, the display mode for the liquid crystal projector 100 and the print mode for the printer 201 are switched. Depending on the current mode, the display 2101 switches between “LCP” and “printer”. The display image to 305 can be switched by the left / right key of the up / down / left / right decision button 303. An output request can be issued by directly pressing the print button 301.

  Also, by pressing the SET button 302, a screen shown in FIG. 22 is displayed in which settings such as printing of a plurality of sheets can be made in the same way as when directly connecting to the printer 201.

  FIG. 22 is an example of a screen related to image output setting in the digital camera according to the embodiment of the present invention. FIG. 22 includes a printer transfer mode 2200, a direct print setting information display 2201, and an output button 2202. In the transfer mode 2200, “LCP” or “printer” corresponding to the current mode is displayed. The direct print setting information display 2201 displays information on the set paper size, paper type, and layout. The output button 2202 also displays either “transfer” or “print” according to the current mode.

  As described above, in this embodiment, the Capability PaperSize is used as information for determining the output destination when the liquid crystal projector 100 relays the print request to the printer 201. However, the present invention is not limited to this, and other Capabilities may be used.

  In this embodiment, a system including a camera, a liquid crystal projector, and a printer has been described. However, the present invention can also be applied to a device that displays an image, such as a television or an image viewer.

  In addition, the communication packet format used by each terminal for communication in forming the device connection, the operation member for displaying an image, and the like are not limited to the present embodiment.

  In this embodiment, in a system configuration in which the camera 200 and the liquid crystal projector 100 are connected and the liquid crystal projector 100 is also connected to the printer 201, images held by the camera by operation on the camera side are displayed on the liquid crystal projector 100 and the printer 201. The function to output simultaneously will be described.

  The configuration of the liquid crystal projector, the configuration of the liquid crystal projector and the digital camera, and the connection method in this embodiment are all the same as those in the first embodiment, and a description thereof will be omitted. The difference from the first embodiment is that the processing of the association means and the ability synthesis means is added.

  FIG. 23 is a diagram illustrating a combining method of the output capability combining means of the liquid crystal projector 100 in the present embodiment. Capability 2300 is the output capability used for determining the output destination in the present embodiment, and specifically here is paperSizes. The display device 2301 is the liquid crystal projector 100, the output device 2302 is the printer 201, and the combined Capability 2303 indicates the Capability notified to the camera 200 by the combined liquid crystal projector 100. As a way of looking at the table, ◯ 2309 indicates that the display device 2301 supports L-size paperSizes.

  The contents of this embodiment will be described. First, in the liquid crystal projector 100, a vendor code for simultaneous output is newly defined for each value of PaperSizes. For example, it is defined to be paired with a standard code such as L size for simultaneous output for L size and A4 for simultaneous output for A4. These simultaneous output codes do not appear as Capability when an output device such as the printer 201 is not connected, but the standard codes that are connected to the printer 201 and paired as described above are the printer 201. If this is the case, the Capability of the liquid crystal projector 100 is changed and the corresponding simultaneous output vendor code is added. At this time, when the liquid crystal projector 100 receives an output request in which the bender code for simultaneous output is specified with paperSizes from the camera 200, images specified by the liquid crystal projector 100 and the printer 201 are output simultaneously. When an output request specifying a standard code paired with the simultaneous output vendor code is received, an image is output only from the printer 201. When it is desired to output an image only to the liquid crystal projector 100, a vendor code other than the simultaneous output vendor code may be specified as in the first embodiment.

  Subsequently, the ability synthesis method in the present embodiment will be specifically described below.

  Basically, as in the first embodiment, the output destination is determined by whether Capability (hereinafter, PaperSizes is used as Capability) is a standard one or a vendor code. That is, if PaperSizes is a standard code, the output destination is the printer 201, and if PaperSizes is a vendor extension code, the output destination is the liquid crystal projector 100. In the case where both the display device 2301 and the output device 2302 correspond to each other as in the L size 2304, the code corresponds to the code after synthesis. The card 2306 corresponds to the printer 201, and this also corresponds to this code after composition. On the other hand, the postcard 2305 corresponds only to the liquid crystal projector 100, but this also corresponds to this code after composition. That is, if it corresponds to either the liquid crystal projector 100 or the printer 201, it corresponds to the code even after the ability synthesis. There are exceptions, however. It is a vendor extension code such as a simultaneous output L size 2307 that is specially defined in this embodiment. These codes are codes for simultaneously outputting images from the liquid crystal projector 100 and the printer 201. These codes are prepared for each type of paperSizes (defined as a pair such as L size and extended L size, A4 and extended A4). That is, when it is desired to simultaneously output the L size image to the liquid crystal projector 100 and the printer 201, the printer 201 needs to support the L size and the liquid crystal projector 100 corresponds to the L size 2307 for simultaneous output. Therefore, when the liquid crystal projector 100 corresponds to the extended postcard size as in 2308 and the printer 201 does not support the postcard size 2305, the post-capacity size for simultaneous output is not included in the paperSizes after the capability synthesis. Become. The above is the capability synthesis method that the capability synthesis means should have in this embodiment.

  Next, a method for associating association means in the present embodiment will be described. FIG. 24 is a diagram illustrating a method of associating Capability and output destination of the display device and output device in the present embodiment. Of the codes that are supported after composition, all the standard codes that are supported by the printer 201 are output from the printer 201 even after composition. However, when it is paired with a simultaneous output bender code such as L size for simultaneous output of the liquid crystal projector 100, it is also output from the liquid crystal projector 100 at the same time. Finally, a code that is only supported by the liquid crystal projector 100 is output only by the liquid crystal projector 100 after the composition. According to the above association rules, in FIG. 24, the L size corresponds to both the display device 2301 and the output device 2301, but since the L size is a standard code, it is output 2401 only from the output device 2301. The postcard 2305 is output from the display device because only the display device supports it. Since the card 2306 is a standard code, it is output 2403 from the output device. The simultaneous output L size 2307 is a vendor code, and the paired standard code is an L size. Since the output device 2302 corresponds to the L size, the simultaneous output L size 2307 can be used, and the combined output is both the display device 2301 and the output device 2302 2404. The simultaneous output postcard 2308 is a vendor code paired with the postcard 2305. Since the output device does not support the postcard 2305, the simultaneous output postcard 2308 cannot be used and is not supported as Capability after synthesis. The above is the association method of the association means in the present embodiment.

  FIG. 25 is a rear view of the camera 200 in the present embodiment. In the direct print setting information display 2500, information on the set paper size, paper type, and layout is displayed. In FIG. 25, the designated paper size is “L size simultaneous output”. This can be set by selecting from the paper setting button 2501 when the L size simultaneous output vendor code is usable. In addition, simultaneous output from the projector 100 and the printer 201 can be selected from the paper setting button 2501 regardless of the transfer mode 2200.

  As described above, by operating only operation members such as buttons of the digital camera, an image held by the digital camera can be simultaneously output to the liquid crystal projector and the printer. Further, although the Capability PaperSize is used as information for determining the output destination when the liquid crystal projector 100 relays the print request to the printer 201, the present invention is not limited to this, and other Capabilities may be used.

  In this embodiment, a system including a camera, a liquid crystal projector, and a printer has been described. However, the present invention can also be applied to a device that displays an image, such as a television or an image viewer.

  In addition, the communication packet format used by each terminal for communication in forming the device connection, the operation member for displaying an image, and the like are not limited to the present embodiment.

It is a figure which shows the general structure of the liquid-crystal projector in embodiment of this invention. 1 is a diagram illustrating a system configuration of a digital camera, a liquid crystal projector, and a printer according to an embodiment of the present invention. It is the figure which showed the back surface of the digital camera 200 in embodiment of this invention. It is an example of the screen regarding the direct designation | designated printing with the digital camera 200 in embodiment of this invention. It is an example of a direct printing process in-progress screen when the direct printing button 301 is pressed on the digital camera 200 in the embodiment of the present invention. 6 is an example of a printing process screen in the digital camera 200 according to the embodiment of the present invention. It is an example of a print processing stop confirmation screen in the digital camera 200 in the embodiment of the present invention. It is an example of the error screen which can restart printing with the digital camera 200 in the embodiment of the present invention. 6 is an example of an error screen in which printing cannot be resumed by the digital camera 200 in the embodiment of the present invention. It is the figure which showed the system model of DPS in embodiment of this invention. It is the figure shown about the DPS command and event in embodiment of this invention. It is a sequence diagram of the reacquisition method when the Capability information of the liquid crystal projector in the embodiment of the present invention changes. It is a figure showing the connection sequence of the camera, liquid crystal projector, and printer in embodiment of this invention. FIG. 14 is a sequence diagram of DPS Discovery shown in FIG. 13 in the embodiment of the present invention. It is a figure showing the connection sequence in embodiment of this invention. FIG. 6 is a diagram illustrating a transfer sequence to a printer 201 in the embodiment of the present invention. It is a figure showing the display sequence to the liquid crystal projector 100 in embodiment of this invention. It is a figure showing the sequence in which a communication error generate | occur | produces between the camera 200 and the liquid crystal projector 100 in embodiment of this invention. FIG. 19 is a diagram showing a sequence in which an error occurs when there is a print request from the camera 200 during communication between the liquid crystal projector 100 and the printer 201 in the embodiment of the present invention. FIG. 6 is a diagram illustrating a sequence in which a communication error occurs between the liquid crystal projector 100 and the printer 201 in the embodiment of the present invention. FIG. 21 is a rear view of the camera 200 in the present embodiment. It is an example of the screen regarding the image output setting with the digital camera in the embodiment of the present invention. It is a figure showing the synthetic | combination method of the output capability synthetic | combination means which the liquid crystal projector 100 in a present Example has. It is the figure which showed the method of correlation of Capability and the output destination of the display apparatus and output device in a present Example. It is a figure of the back surface of the camera 200 in a present Example. It is the figure which showed the component requirements of the liquid crystal projector in embodiment of this invention. It is the figure shown about the DPS command and event in embodiment of this invention. It is the figure shown about the DPS command and event in embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Liquid crystal projector 101 Memory 102 Non-volatile memory 103 Operation part 104 Power supply control means 105 Power supply means 106 USB interface 107 Communication interface 108 Image processing circuit 109 System control circuit 110 Frame memory 111 Projector video signal processing circuit 112 Signal level adjustment circuit 113 Liquid crystal driver 115 Lamp drive circuit (ballast)
116 lamp 117 liquid crystal panel 118 lens group 119 screen 120 remote control light receiving unit 121 USB interface 200 digital camera 201 printer 202 USB cable 203 USB cable 300 changeover switch 301 direct print button (direct print button)
302 SET button 303 Up / down / left / right button 304 MENU button 305 LCD monitor 400 Print button 401 Direct print setting information display 500 Cancel button 600 Printing process comment 700 Cancel button 701 Continue button 800 Cancel button 801 Continue button 900 Cancel button 1001 Print Server
1002 Print Client
1003 Storage Client
1004 Storage Server
1101 configurePrintService (input)
1102 configurePrintService (output)
1103 getCapability (input)
1104 getCapability (output)
1105 startJob (input)
1106 startJob (output)
1107 notifyJobStatus (output)
1108 notifyJobStatus (input)
1109 notifyDeviceStatus (output)
1110 notifyDeviceStatus (input)
1111 abortJob (input)
1112 abortJob (output)
1113 continueJob (input)
1114 continueJob (output)
1120 getFileID (output)
1121 getFileID (input)
1122 getFileInfo (output)
1123 getFileInfo (input)
1124 GetFile (output)
1125 GetFile (input)
1126 GetPartialFile
1302 First communication means 1303 Output capability composition means 1304 Association means 1305 First storage means 1306 Second storage means 1307 Second communication means 1309 DPS Discovery
1610 output destination switching means 1701 display means 2100 shutter button 2101 transfer mode 2200 transfer mode 2201 direct print setting information display 2202 output button 2500 direct print setting information display 2501 paper setting button 2600 first communication means 2601 second communication means 2602 second 1/2 storage device 2603 Output capability combining means 2604 Associating means 2605 Output destination switching means

Claims (7)

A first communication means connected to the image recording device;
A second communication means connected to the image output device;
First storage means for temporarily storing information received from the image recording device;
Second storage means for temporarily storing the output capability of the image display device and the output capability of the image output device;
Ability combining means for combining the output ability of the image display device stored in the second storage means and the output ability of the image output device and notifying the first communication means;
Associating means for associating the output ability synthesized by the ability synthesizing means with the output destination;
Output destination switching means for switching the output capability specified by the output request from the image recording apparatus to a desired output destination based on the association means;
Display means for displaying an image transferred from the first communication means;
An image display device comprising: The association means includes
2. The image display according to claim 1, wherein output destinations of the present image display device and the image output device are distinguished by an output capability standardized by a standard or a specially defined output capability. apparatus. The association means includes
The image display apparatus according to claim 1, further comprising: associating both the main image display apparatus and the printing apparatus as output destinations with respect to one output capability. The capability synthesis means is
4. The apparatus according to claim 1, wherein when there is an overlapping capability between the output capabilities of the image display device and the image output device, only the common capability is supported as the output capability after synthesis. An image display device according to claim 1. The capability synthesis means is
If the output capability of the image display device and the image output device overlaps, the output capability of either device is supported as the combined output capability. The image display apparatus in any one of Claims 1-3.   6. The image recording apparatus is notified of an error when an image print request is received from the image recording apparatus during image transfer in the second communication means. The image display device described.   6. The image according to claim 1, wherein when an error occurs during image transfer in the second communication means, a specially defined error value is notified to the image recording apparatus. Display device.

Images