JP2008087335A - Printer and cutout image display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique which permits the description of a moving image to be confirmed on the basis of moving image data without using a moving image reproduction module. <P>SOLUTION: The printer is connected to an image display device having a browser via a network, and has a moving image data acquisition section which acquires moving image data from a storage device, a cutout section which cuts out a static image from a moving image shown by moving image data and acquires a cutout static image, a browser screen transmission section which generates and transmits a first browser screen including the cutout static image to the image display device, and a printing section which prints a specified cutout static image when receiving a printing request specifying the cutout static image from the image display device. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for displaying the contents of a moving image based on moving image data.

  Conventionally, a moving image shot by a digital video recorder or the like is recorded as moving image data in a predetermined format such as MPEG-2 (Moving Picture Experts Group-2), and a digital television image is received based on the moving image data. In some cases, the image is reproduced on an image display device such as a computer. An example of an image display device that reproduces a moving image based on moving image data is a television receiver described in Patent Document 1 below.

JP 2004-15224 A

  An image display device capable of reproducing a moving image based on moving image data includes a moving image reproducing module for converting (decoding) the moving image data into data in a displayable format. For example, an image display apparatus capable of reproducing a moving image based on MPEG-2 format moving image data includes a decoder for expanding moving image data compressed by the MPEG-2 system as a moving image reproducing module. . Therefore, an image display device that does not include such a moving image reproduction module cannot reproduce a moving image based on moving image data.

  Further, even in an image display device including a moving image reproduction module, if a process other than moving image reproduction is preferentially executed and a hardware resource such as a CPU is in a high load state, the moving image There may occur a case where a moving image cannot be played back because sufficient hardware resources for the playback module to perform processing cannot be secured.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a technique that enables the content of a moving image to be confirmed based on moving image data without using a moving image playback module.

  In order to achieve the above object, the present invention provides a printing device connected to an image display device having a browser via a network, the moving image data acquisition unit acquiring moving image data from a storage device, and the moving image A cutout unit that cuts out a still image from a moving image represented by image data and generates a cutout still image; a browser screen transmission unit that generates a first browser screen including the cutout still image and transmits the first browser screen to the image display device; And a print processing unit that prints the specified cut-out still image upon receiving a print request specifying the cut-out still image from the image display device.

  In the printing apparatus of the present invention, a still image is cut out from a moving image, a first browser screen is generated and transmitted to the image display device, and thus the cut-out is performed by displaying the first browser screen with a browser included in the image display device. A still image can be displayed, and the user can check the content of the moving image without using the moving image playback module in the image display device. The user can also check the content of the moving image with the printed still image.

  In the printing apparatus, the browser screen transmission unit transmits a representative still image of the moving image represented by the moving image data stored in the storage device and the storage device before transmitting the first browser screen. A second browser screen that displays a mixture of still images represented by stored still image data is generated and transmitted to the image display device, and the browser screen transmission unit When any one of the representative still images is selected, the first browser screen including the clipped still image of the moving image corresponding to the representative still image is generated and transmitted to the image display device. May be.

  With this configuration, the user can easily check the still image and the moving image stored in the storage device by looking at the second browser screen. Further, the user can confirm the content of the moving image by a simple operation of selecting a representative still image on the second browser screen.

  In the printing apparatus, the cutout unit generates a plurality of cutout still images from the moving image data, and the browser screen transmission unit displays a plurality of first browser screens including the cutout still images as the image display. The images may be sequentially transmitted to the apparatus at predetermined intervals, and the image display apparatus may execute a slide show display of the plurality of cut-out images.

  With this configuration, the user can check the content of the moving image in detail by viewing the slide show on the first browser screen.

  In the printing apparatus, the first browser screen includes a control button for controlling the slide show display, and the first still image displayed from the representative still image and the still image displayed on the second browser screen. A selection button for selecting an image to be displayed on the browser screen.

  With this configuration, the user can select an image to be displayed on the first browser screen with a simple operation without returning from the first browser screen to the second browser screen.

  The present invention can be realized in various forms. For example, a cut-out image display method, a cut-out image display method, or a computer program for realizing the functions of a printing apparatus, and a recording in which the computer program is recorded It can be realized in the form of a medium, a data signal including the computer program and embodied in a carrier wave, and the like.

Hereinafter, the best mode for carrying out the present invention will be described in the following order based on examples.
A. First embodiment:
B. Second embodiment:
C. Third embodiment:
D. Variation:

A. First embodiment:
A1. Schematic configuration of network system:
FIG. 1 is an explanatory diagram schematically showing the configuration of a network system including a printer as an embodiment of the present invention. The network system 10 has a configuration in which a printer 100 and a digital television receiver (hereinafter referred to as “DTV”) 200 are connected to each other via a local area network 20. The local area network 20 may be a wired network such as IEEE802.3 or a wireless network such as IEEE802.11b / g / a.

  Both the printer 100 and the DTV 200 are network devices compatible with Universal Plug and Play (hereinafter referred to as “UPnP”, UPnP is a trademark of UPnP Implementers Corporation). Here, UPnP is an architecture that realizes connecting or disconnecting a network device to a network at an arbitrary timing. The UPnP network is composed of control points and devices. “Device” means a device that provides a service. In this specification, unless otherwise specified, “device” and “service device” are used as synonyms. A “control point” means a controller that detects and controls other devices on the network, and functions as a client for the service device. The network system 10 may include other network devices that support UPnP and other network devices that do not support UPnP.

  The printer 100 functions as a service device in the UPnP network and provides a print service to the control point. The printer 100 includes a CPU 110, an operation unit 120 such as buttons and a touch panel, a display unit 130 such as a liquid crystal monitor, a printer engine 140, a card interface (card I / F) 150, and a network interface (network I / F). 160 and an internal storage device 170 such as a ROM or a RAM. The printer engine 140 is a printing mechanism that performs printing based on print data. The card interface 150 is an interface that exchanges image data and the like with the memory card 154 inserted into the card slot 152. The network interface 160 has a function of mediating messages and data exchanged with other devices on the local area network 20.

  The internal storage device 170 of the printer 100 includes a network protocol control module 171, an HTTP server program (hereinafter referred to as “HTTP server”) 172, a print processing module 174, a still image cropping module 176, and a plurality of HTML files 178. And are stored. The network protocol control module 171 is a computer program for mediating messages and data with other devices on the network system 10 according to the UPnP protocol and other protocols. The HTTP server 172 is a computer program for responding an HTML file or the like in response to a request from a browser or the like. The print processing module 174 is a computer program for controlling the printer engine 140 to perform printing. The still image extraction module 176 is a computer program for functioning as an MPEG-2 decoder and for extracting still images at predetermined time intervals from a moving image obtained by decompression. The CPU 110 reads out and executes the network protocol control module 171, the HTTP server 172, the print processing module 174, and the still image extraction module 176 from the internal storage device 170, thereby performing a slide show display process described later. Note that the HTTP server 172 is also referred to as a Web server or a WWW server.

  The CPU 110 and the still image cutout module 176 correspond to a moving image data acquisition unit and a cutout unit in claims. Further, the CPU 110 and the HTTP server 172 correspond to a browser screen transmission unit in the claims, and the CPU 110 and the print processing module 174 correspond to a print processing unit in the claims.

  The DTV 200 functions as a control point in the UPnP network. The DTV 200 includes a CPU 210, an operation unit 220 such as a button, a remote control and a remote control light receiving unit, a display unit 230 such as a liquid crystal panel, a network interface (network I / F) 260, and an internal storage device 270 such as a ROM and a RAM. It is equipped with. The network interface 260 has a function of mediating messages and data exchanged with other devices on the local area network 20. The internal storage device 270 stores a Web browser program (hereinafter referred to as “Web browser”) 272. The web browser 272 is a computer program for acquiring an HTML file or the like via a network, and analyzing and displaying the acquired HTML file or the like. The CPU 210 reads out and executes the Web browser 272 from the internal storage device 270 to perform a slide show display process described later. Note that the DTV 200 does not include an MPEG-2 decoder and cannot reproduce a moving image based on moving image data compressed by the MPEG-2 method.

  Here, UPnP realizes various processes as described below using various protocols such as HTTPMU, HTTPPU, SOAP / HTTP, and HTTP.

(1) Addressing:
When a UPnP device (hereinafter simply referred to as “device”) is connected to a network, a network address (IP address) is acquired by addressing. For addressing, a DHCP server or Auto-IP is used. If a DHCP server is provided in the network, the device uses an IP address assigned by the DHCP server. If there is no DHCP server, the device determines its own address using an automatic IP addressing function called Auto-IP.

(2) Discovery (detection):
Discovery is a process in which the control point finds out where the device is. Discovery can be realized by the control point multicasting the discovery message, or can be realized by advertising the fact to the control point when the device joins the network. Discovery is performed using HTTPMU / SSDP or HTTPPU / SSDP. As a result of the discovery, the control point and the device can be processed peer-to-peer.

(3) Description:
Details of the device configuration are described in XML as a device description. The details of the device service are described in XML as a service description. These descriptions are owned by the device and provided to the control point. The control point can know the details of the device and service by referring to these descriptions.

(4) Control:
Control is a process in which a control point controls a device by transferring a control message including an action request to the device. Control is performed using HTTP / SOAP.

(5) Event:
When a predetermined event occurs, a service in the device notifies the control point of the occurrence of the event. A control point that receives notification of an event occurrence “subscribes” to the service. Events are forwarded to subscribing control points. Notification of an event is performed using HTTP / GENA.

(6) Presentation:
The presentation is a process of acquiring a presentation page whose control point is described in HTML from a URL (Uniform Resource Locator) for presentation registered in the device description. With this presentation, for example, the control point can display various states of the device.

  The present invention can also be applied to future versions of UPnP. As network type plug and play, any control point and device can communicate peer-to-peer by addressing (automatic IP address determination) and device discovery, and the control point and device exchange messages. If it is an architecture, the present invention can be applied to network type plug and play specifications other than UPnP. The present invention is not limited to network type plug and play, and can be applied to a configuration in which the printer 100 and the DTV 200 perform data communication using an arbitrary protocol.

A2. Slideshow display process:
2 and 3 are flowcharts showing the flow of the slide show display process in the network system 10 of the present embodiment. The slide show display process is based on the moving image data stored in the memory card 154 (FIG. 1) inserted in the card slot 152 of the printer 100, and a still image is cut out from the moving image represented by the moving image data. This is a process of executing a slide show display on the DTV 200 by sequentially switching and displaying still images.

  In the network system 10 (FIG. 1), before the slide show display process is started, both the printer 100 and the DTV 200 participate in the network system 10, and the presence and IP address of each other are obtained through UPnP addressing, discovery, and the like. It shall be recognized. Further, it is assumed that the DTV 200 recognizes the device configuration of the printer 100 as a device and the contents of the service through the UPnP description. Further, it is assumed that the memory card 154 (FIG. 1) in which moving image data and still image data are stored is inserted into the card slot 152 of the printer 100 before the slide show printing process is started.

  In step S110 (FIG. 2), the Web browser 272 (FIG. 1) of the DTV 200 requests the top page of the printer 100. This process is executed in response to an operation for requesting a printer top page via the operation unit 220 by the user, for example. In this embodiment, the top page of the printer 100 is a UPnP presentation page, and its URL is registered in the device description of the printer 100. Accordingly, the Web browser 272 requests a URL for presentation registered in the device description.

  In step S120, the HTTP server 172 (FIG. 1) of the printer 100 responds with the HTML file 178 of the top page of the printer 100 prepared in advance. As a result, the top page of the printer 100 is displayed on the display unit 230 of the DTV 200.

  FIG. 4 is an explanatory diagram showing an example of the printer top page displayed on the display unit 230 of the DTV 200 in step S120. The printer top page W1 includes an image list display menu button B11, a printer status display menu button B12, and a print setting menu button B13. The printer status display menu button B12 is a menu button for displaying the operating state of the printer 100 (whether there is an error, the remaining amount of ink, etc.). The print setting menu button B13 is a menu button for setting a paper size, a paper type, and the like when executing printing in the printer 100.

  When the user operates the operation unit 220 to select the image list display menu button B11, the Web browser 272 of the DTV 200 requests an image list in step S130. In addition to the URL of the image list page, the image list request includes a URL that causes the HTTP server 172 to activate the still image clipping module 176 (FIG. 1).

  In step 140, the still image clipping module 176 of the printer 100 reads MPEG-2 format moving image data from the memory card 154 and executes decompression processing, and the first I picture (intra-coded image) is stored in the internal storage device 170. Are stored in a predetermined area. This I picture is used as a representative still image for a moving image. In step S150, the list of images in which the HTTP server 172 of the printer 100 embeds the URL of each still image stored in the memory card 154 and the URL of the I picture stored in the internal storage device 170 in step S140. Responds to the HTML file 178 of the page.

  FIG. 5 is an explanatory diagram illustrating an example of an image list page. The image list page W2 includes image display areas f1 to f4 for displaying images (still images and moving images) in the memory card 154. Note that the URL of each image is only embedded in the image display areas f1 to f4 of the HTML file 178 describing the image list page W2. This image list page W2 corresponds to the second browser screen in the claims.

  In step S160, the Web browser 272 of the DTV 200 interprets the received HTML file 178, specifies the URL of the embedded image data, and requests image data. The Web browser 272 has a function of requesting image data when an HTML file in which the URL of the image data is embedded is received.

  In step S170, the HTTP server 172 of the printer 100 acquires image data of the requested URL from the memory card 154 and the internal storage device 170, and responds to the DTV 200. By processing the image data received by the Web browser 272 of the DTV 200, each image is displayed in the image display areas f1 to f4 in the image list page. In the example of FIG. 5, “PIC0001.jpg”, “PIC0002.jpg”, and “PC0212.jpg” are stored as still images in the memory card 154 (FIG. 1), and these three still images (thumbnail images). ) Are displayed in the image display areas f1, f2, and f4, respectively. Also, “ryoku.mpg”, which is MPEG-2 format data, is stored as a moving image in the memory card 154, and a representative still image of this moving image is displayed in the image display area f3.

  In the DTV 200, when the user operates the operation unit 220 to select the image display area f3 and presses the enter button, in step S180, the Web browser 272 of the DTV 200 selects the URL of the selected image (URL of the representative still image). Specify and request a slideshow display. In step S190, the HTTP server 172 of the printer 100 activates the still image extraction module 176 to execute still image extraction processing. When this still image cutout process is executed, the still image cutout module 176 functions as a CGI (Common Gateway Interface) program. In this still image cutout process, the still image cutout module 176 reads out and expands a moving image (ryoko.mpg) corresponding to the designated representative still image from the memory card 154, and at predetermined time intervals from the first frame. The still image is cut out and the still image data is stored in the internal storage device 170. Note that the predetermined time interval is 3 seconds in this embodiment. Then, the still image cutout module 176 gives a unique serial number (continuous number (hereinafter referred to as “continuous number N”) to each cut out still image.

  In step S200, the HTTP server 172 of the printer 100 searches the internal storage device 170 for still image data with a serial number N = 1, and uses the URL of the still image data as an HTML file of a slide show display page prepared in advance. Embed in 178. In step 210, the HTTP server 172 of the printer 100 responds with the HTML file 178 of the slide show display page in which the URL of the still image data (N = 1) is embedded. As a result, a slide show display page is displayed on the display unit 230 of the DTV 200.

  FIG. 6 is an explanatory diagram illustrating an example of a change in the slide show display page. 6A shows the slide show display page W3 when the serial number N is 1, and FIG. 6B shows the slide show display page W3 when the serial number N is 2. FIG. Shows the slide show display page W3 when the serial number N is 3, respectively. The slide show display page W3 includes a slide show display area f21, a stop button B31, a playback button B32, a print button B33, a fast forward button B34, and a rewind button B35. Note that when the step S210 is completed, no image is displayed in the slide show display area f21.

  The slide show display page W3 corresponds to the first browser screen in the claims, and a button group including a stop button B31, a play button B32, a print button B33, a fast forward button B34, and a rewind button B35 is provided. This corresponds to the control button in the claims.

  When the HTTP server 172 of the printer 100 responds with the HTML file 178 of the slide show display page in step S210, it designates that the request for the slide show display page should be reissued after a predetermined time (for example, 3 seconds) (refresh designation). Are embedded in the HTML file 178. The HTML file 178 of the slide show display page is displayed on the slide show display page so that the slide show display page is displayed on the display unit 230 of the DTV 200 in an appropriate size (for example, a size that does not need to be scrolled). The slide show display area f21 is prepared in advance so as to have an appropriate size for displaying an image.

  In step S220 (FIG. 2), the Web browser 272 of the DTV 200 interprets the received HTML file 178, specifies the URL of the embedded still image data (N = 1), and requests image data. In step S230, the HTTP server 172 of the printer 100 acquires the still image data of the requested URL from the internal storage device 170 and responds to the DTV 200. Then, by processing the image data received by the Web browser 272 of the DTV 200, as shown in FIG. 6A, a still image cut out with the serial number N = 1 in the slide show display area f21 in the slide show display page W3. Is displayed.

  In step S240, the Web browser 272 of the DTV 200 requests a slide show print page. This process is executed after the time (3 seconds) designated by the refresh designation of the HTML file 178 returned in step S210 has elapsed. That is, the Web browser 272 reissues the slide show display page request three seconds after receiving the slide show display page HTML file 178 in step S210.

  Next, in step S250 (FIG. 3), the HTTP server 172 of the printer 100 searches the internal storage device 170 for still image data having a serial number N = 2, and the URL of the still image data is prepared in advance. The slide show display page is embedded in the HTML file 178. Subsequent processes in steps S260 to S290 are the same as those in steps S210 to S240 described above. After step S280, a still image with a serial number N = 2 is displayed in the slide show display area f21 in the slide show display page W3 displayed on the display unit 230 of the DTV 200, as shown in FIG. 6B.

  Next, in step S300, the HTTP server 172 of the printer 100 searches the internal storage device 170 for still image data having a serial number N = 3, and sets the URL of the still image data as a slide show display page prepared in advance. The HTML file 178 is embedded. Subsequent processes in steps S310 to S330 are the same as those in steps S210 to S230 described above. After step S330, as shown in FIG. 6C, a still image with a serial number N = 3 is displayed in the slide show display area f21 in the slide show display page W3 displayed on the display unit 230 of the DTV 200.

  At this time, in the DTV 200, when the user operates the operation unit 220 and presses the print button B33 included in the slide show display page W3 (FIG. 6C), the Web browser 272 of the DTV 200 displays the print request URL and the print target still image. A print request including the URL is sent to the printer 100 (step S340). This print request URL is a URL that activates the print processing module 174 (FIG. 1) in the HTTP server 172 that has received the request. In order to be able to send such a print request, the HTTP server 172 prints on the print button B33 in the slide show display page in response to the HTML file 178 of the slide show display page (steps S210, S260, S310). The URL for starting the processing module 174 and the URL of the image data of the still image currently displayed are embedded. When realizing such still image printing, the print processing module 174 functions as a CGI program. Then, the print processing module 174 controls the printer engine 140 to print the designated print target still image (step S350).

  After step S350, each time a slide show display request is received from the DTV 200, the HTTP server 172 of the printer 100 increments the serial number N by 4, 5, 6, 6,. The HTML file 178 of the slide show display page in which the URL of the still image data is embedded is transmitted to the DTV 200. Therefore, on the slide show display page W3 displayed on the display unit 230 of the DTV 200, the still images cut out from the moving images every 3 seconds are sequentially switched and displayed every 3 seconds, and the slide show display is executed.

  When the stop button B31 shown in FIGS. 6A to 6C is pressed, the slide show display is stopped. In addition, when the playback button B32 is pressed while the slide show display is stopped, the slide show display is executed again. When the fast forward button B34 is pressed, the Web browser 272 of the DTV 200 transmits a slide show display request to the printer 100 even before a predetermined time (3 seconds) has elapsed, regardless of the refresh designation. Therefore, the still images in the next order are displayed in the slide show display area f21 of the slide show display page W3. Even when the rewind button B35 is pressed, a slide show display request is transmitted to the printer 100 regardless of the refresh designation. However, in such a slide show display request, it is specified that the serial number N is decremented by 1 unlike when the fast-forward button B34 is pressed. Therefore, the HTTP server 172 of the printer 100 decrements the serial number N by 1 and transmits the HTML file 178 of the slide show display page in which the URL of the previous still image is embedded to the DTV 200.

  After all the images are displayed as described above, when receiving the slide show display page request, the HTTP server 172 of the printer 100 responds with an HTML file 178 of a page indicating completion of the slide show display (step S400).

  FIG. 7 is an explanatory diagram showing an example of a still image display page displayed when a still image is selected on the image list page W2 shown in FIG. The still image display page W4 includes a still image display area f41, a print button B43, a rightward movement button B41, a leftward movement button B42, and a print button B43. The rightward movement button B41 and the leftward movement button B42 correspond to selection buttons in the claims.

  For example, when a still image displayed in the image display area f1 is selected on the image list page W2 (FIG. 5), the Web browser 272 of the DTV 200 designates the URL of the selected still image (PIC0001.jpg). Request a still image display. The HTTP server 172 of the printer 100 resizes the specified still image to a size that fits the still image display area f41 and stores it in the internal storage device 170. The still image display page in which the URL of the resized image data is embedded The HTML file 178 is transmitted to the DTV 200. The Web browser 272 of the DTV 200 interprets the received HTML file 178, specifies the URL of the embedded still image data, and requests image data. Then, the HTTP server 172 of the printer 100 transmits the designated image data to the DTV 200, and the still image “PIC0001.jpg” is displayed on the still image display page W4.

  As shown in FIG. 7, when the user presses the right direction movement button B41 while the still image “PIC0001.jpg” is displayed in the still image display region f41, the still image display region f41 includes In FIG. 5, the still image “PIC0002.jpg” that is adjacent to the right of the still image “PIC0001.jpg” is displayed. If the user presses the left movement button B42 while the still image “PIC0002.jpg” is displayed in the still image display area f41, the right side of the still image “PIC0002.jpg” in FIG. The still image “PIC0001.jpg” is displayed. When the user presses the right direction movement button B41 in a state where the still image “PIC0002.jpg” is displayed in the still image display area f41, as described above, the slide show display page W3 shown in FIG. Is displayed, and a slide show display process is executed.

  As described above, in the network system 10 of this embodiment, still image data cut out from a moving image by the printer 100 is transmitted to the DTV 200 at predetermined time intervals, and a slide show is displayed on the DTV 200. Therefore, even if the DTV 200 does not include the MPEG-2 decoder, the user can check the content of the moving image in the MPEG-2 format on the DTV 200. In addition, since the configuration is such that still images are transmitted from the printer 100 to the DTV 200 at predetermined intervals, the use band in the local area network 20 can be reduced compared to a configuration in which moving images are transmitted as streaming data.

B. Second embodiment:
FIG. 8 is an explanatory diagram showing a slide show display page in the second embodiment. This slide show display page W5 is different from the slide show display page W3 shown in FIG. 6 in that it includes a right direction move button B51 and a left direction move button B52, and the other configuration is the same as the slide show display page W3. It is. The procedure of the network system 10 and the slide show display process is the same as that of the first embodiment.

  The right direction movement button B51 is a button for performing the same operation as the right direction movement button B41 (FIG. 7) in the first embodiment, and the left direction movement button B52 is the same as the left direction movement button B42 (FIG. 7). It is a button for performing the same operation. When the user wants to view the images before or after the moving image “ryokou.mpg”, that is, the still images in the image display areas f2 and f4 of the image list page W2 (FIG. 5), the user displays the slide show display page W5. A still image can be selected by pressing the right direction movement button B51 or the left direction movement button B52. Then, the still image display page W4 shown in FIG. 7 is displayed on the display unit 230 of the DTV 200, and the selected still image is displayed in the still image display area f41.

  With this configuration, the user can select a still image and confirm the content by a simple operation without returning from the slide show display page W5 to the image list page W2.

C. Third embodiment:
FIG. 9 is an explanatory diagram schematically showing the configuration of the network system in the third embodiment. This network system 10a is different from the network system 10 in that a network protocol control unit 190 is provided instead of the network interface 160 of the printer 100 shown in FIG. . The procedure of the slide show display process in the present embodiment is the same as that in the first embodiment.

  In the printer 100a of the network system 10a, the function of performing communication by UPnP with the DTV 200 serving as a control point is independent as the network protocol control unit 190 from the printer main body unit 180 including other components. The network protocol control unit 190 and the printer main unit 180 are connected by a USB (Universal Serial Bus). The network protocol control unit 190 includes a CPU 192, an internal storage device 194 such as a ROM or a RAM, and a network interface 196. The CPU 192 executes various protocols of UPnP by executing programs stored in the internal storage device 194. By adopting such a configuration, it is possible to divide a part that performs protocol control in UPnP and a part that functions as a service device, and it is possible to improve design flexibility.

D. Variation:
In addition, elements other than the elements claimed in the independent claims among the constituent elements in each of the above embodiments are additional elements and can be omitted as appropriate. The present invention is not limited to the above-described examples and embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

D1. Modification 1:
In each of the embodiments described above, a still image is cut out every 3 seconds from the moving image, and the still image is sequentially transmitted to the DTV 200 every 3 seconds and displayed. However, the present invention is not limited to this. Alternatively, a still image can be cut out from the moving image at arbitrary time intervals, and the cut out still images can be sequentially transmitted to the DTV 200 at arbitrary time intervals and displayed. For example, a still image for every second may be cut out from the moving image and transmitted to the DTV 200 for display every second for display. By doing in this way, the content of a moving image can be confirmed in detail compared with the case where a still image every 3 seconds is cut out and displayed every 3 seconds. Further, for example, a still image every 4 seconds may be cut out from the moving image, and transmitted to the DTV 200 and displayed every 1 second. In this way, the user can confirm the content of the moving image in a shorter time than the recording time of the moving image.

D2. Modification 2:
In each embodiment described above, a plurality of still images are cut out by cutting out still images at predetermined time intervals from the moving image. However, the present invention is not limited to this, and one still image is obtained. It can also be configured to cut out. For example, it is possible to adopt a configuration in which only the first frame of a moving image or a frame located in the middle in time is cut out and transmitted to the DTV 200 for display. Even in such a configuration, the user can confirm the content of the moving image.

D3. Modification 3:
In each of the above-described embodiments, a still image cut out from a moving image is sequentially transmitted to the DTV 200 in the cut-out order and displayed, thereby realizing a slide show display in time series. However, the present invention is not limited to this, and a configuration may be adopted in which the cut out still images are transmitted to the DTV 200 and displayed in an arbitrary order. Specifically, the HTTP server 172 that has received the request from the Web browser 272 adds information indicating that the image data of each cut-out still image has been transmitted to the Web browser 272, and the Web browser 272 still receives the request. Alternatively, arbitrary still image data can be selected from still image data that has not been transmitted, and the URL of the still image data can be embedded in the HTML file 178. Even in such a configuration, the user can confirm the content of the moving image.

D4. Modification 4:
In each of the above-described embodiments, the moving image data is stored in the memory card 154. However, the present invention is not limited to this, and the moving image data is stored in an arbitrary storage device. You can also. Specifically, for example, a configuration stored in the internal storage device 170 may be employed. In addition, if the printers 100 and 100a are configured to include a drive such as a CD-ROM or DVD, a configuration in which moving image data is stored in a CD-ROM or DVD inserted in the drive may be employed. .

D5. Modification 5:
In each of the embodiments described above, the moving image data is assumed to be MPEG-2 format data. However, the present invention is not limited to this, and MPEG-1, MPEG-4, Motion-JPEG, etc. The present invention can be applied to any type of moving image data.

D6. Modification 6:
In the embodiment described above, a part of the configuration realized by hardware may be replaced with software, and conversely, a part of the configuration realized by software may be replaced by hardware. .

1 is an explanatory diagram schematically showing a configuration of a network system including a printer as one embodiment of the present invention. FIG. It is a flowchart (the 1) which shows the flow of the slide show display process in the network system 10 of a present Example. It is a flowchart (the 2) which shows the flow of the slide show display process in the network system 10 of a present Example. FIG. 10 is an explanatory diagram illustrating an example of a printer top page displayed on a display unit 230 in step S120. It is explanatory drawing which shows an example of an image list page. It is explanatory drawing which shows an example of the change of a slide show display page. FIG. 6 is an explanatory diagram showing a still image display page displayed when a still image is selected on the image list page W2 shown in FIG. It is explanatory drawing which shows the slide show display page in a 2nd Example. It is explanatory drawing which shows schematically the structure of the network system in a 3rd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,10a ... Network system 20 ... Local area network 100, 100a ... Printer 110 ... CPU
DESCRIPTION OF SYMBOLS 120 ... Operation part 130 ... Display part 140 ... Printer engine 150 ... Card interface 152 ... Card slot 154 ... Memory card 160 ... Network interface 170 ... Internal storage device 171 ... Network protocol control module 174 ... Print processing module 176 ... Still image cropping module 180: Printer main body 190: Network protocol control unit 192: CPU
194 ... Internal storage device 196 ... Network interface 200 ... DTV
210 ... CPU
DESCRIPTION OF SYMBOLS 220 ... Operation part 230 ... Display part 260 ... Network interface 270 ... Internal storage device f1 ... Image display area f3 ... Image display area W1 ... Printer top page W2 ... Image list page W3 ... Slideshow display page W4 ... Still image display page W5 ... Slideshow display page B11 ... Image list display menu button f21 ... Slideshow display area B12 ... Printer status display menu button B31 ... Stop button B13 ... Print setting menu button f41 ... Still image display area B41 ... Rightward movement button B32 ... Playback button B42 ... Left move button B51 ... Right move button B33 ... Print button B34 ... Fast forward button B35 ... Rewind button B43 ... Print button B52 ... Left move button

Claims (5)

A printing device connected to an image display device having a browser via a network,
A moving image data acquisition unit for acquiring moving image data from the storage device;
A cutout unit that cuts out a still image from the moving image represented by the moving image data and generates a cutout still image;
A browser screen transmission unit that generates a first browser screen including the cut-out still image and transmits the first browser screen to the image display device;
Upon receiving a print request designating the cut out still image from the image display device, a print processing unit that prints the designated cut out still image;
A printing apparatus comprising: The printing apparatus according to claim 1,
The browser screen transmission unit, before transmitting the first browser screen, a representative still image of a moving image represented by moving image data stored in the storage device, and a still image stored in the storage device A second browser screen that displays a mixture of the still image represented by the image data and transmits it to the image display device;
When the representative still image is selected on the second browser screen, the browser screen transmission unit includes the cutout still image of the moving image corresponding to the representative still image. Generate a screen and send it to the image display device;
Printing device. The printing apparatus according to claim 1 or 2,
The cutout unit generates a plurality of cutout still images from the moving image data,
The browser screen transmission unit sequentially transmits a plurality of first browser screens including each clipped still image to the image display device at predetermined intervals, and the image display device displays a slide show of the plurality of clipped images. Execute,
Printing device. The printing apparatus according to claim 3.
The first browser screen includes a control button for controlling the slide show display, and the display target on the first browser screen among the representative still image and the still image displayed on the second browser screen. A selection button for selecting an image to be
Printing device. In a printing apparatus connected to an image display apparatus having a browser via a network, a clipped image display method for cutting out and displaying a still image from a moving image,
(A) acquiring moving image data from the storage device;
(B) cutting out a still image from the moving image represented by the moving image data to generate a cut out still image;
(C) generating and transmitting a first browser screen including the cut out still image to the image display device;
A cut-out image display method comprising:

Images