KR20190009607A - Cloud server and method for rendering contents thereof - Google Patents

Abstract

A cloud server providing a cloud service for display receives content including a request to transfer content from an electronic device to a display device specified by an electronic device, renders received content in a predetermined document format, and transfers content in a document format to a display device.

Description

Cloud server and method for rendering contents in a cloud server and a cloud server

And how to render content on cloud servers and cloud servers.

Traditionally, printing or copying using devices such as printers and MFPs (MultiFunction Printers) has been performed on paper. However, in the future, many means are being studied to replace newspapers, books, and conference materials that have been made of paper, dreaming of an environment where people can live without paper. Meanwhile, in recent years, many people have owned at least one display device each. Particularly, a display device such as a TV is provided for each of most households and corporations, and electronic devices having display panels such as smart phones and tablet devices are widely used for various purposes such as business use, personal use, and education use . Thus, in this trend, much research has been sought as to what other means of printing can be the result of printing instead of a print result that can only be attributed to paper.

And to provide a method for rendering content on cloud servers and cloud servers. The present invention also provides a computer-readable recording medium on which a program for causing the computer to execute the method is provided. The technical problem to be solved by this embodiment is not limited to the above-described technical problems, and other technical problems may exist.

According to the first embodiment, it is possible to receive content including a request to transmit content from an electronic device to a designated display device, render the received content in a predetermined document format, and transmit the content of the document format to a display device Server.

According to a second embodiment, a method for providing a rendering service for a display is provided by a cloud server, the method comprising the steps of receiving content with a request to designate a display device from which content is to be transferred from the electronic device, In a predetermined document format, and transmitting the content of the document format to the designated display device.

According to a third embodiment, there is provided a computer-readable recording medium storing a program for causing a computer to execute the method.

1 is a diagram illustrating a cloud system for printing or copying content stored in a user terminal according to an exemplary embodiment of the present invention to a display screen of a TV.
2 is a view for explaining the types of electronic devices and the types of display devices that may exist on the cloud system.
3 is a diagram illustrating an example of utilizing the functionality of a display copy at remote offices in accordance with one embodiment.
4 is a diagram illustrating a detailed hardware configuration of a cloud according to an exemplary embodiment.
5 is a view for explaining a detailed operation of a cloud for performing a function of a display copy in a cloud system according to an embodiment.
6 is a diagram for explaining an operation of a cloud server for transmitting content including an attachment file to a display device according to an embodiment.
7 is a view for explaining an operation of a cloud server for transmitting a content including a hyperlink to a display device according to an embodiment.
FIG. 8 is a diagram for explaining a function of sharing content using an electronic code according to an embodiment.
9 is a flowchart illustrating an operation of transmitting a content to a display device using a security code according to an exemplary embodiment.
FIG. 10 is a diagram for explaining how an electronic device performs a function of a display copy when a content is transmitted by defining a virtual display device according to an embodiment.
11 is a view for explaining a process of performing a scan-to-display copy in an image forming apparatus according to an embodiment.
12 is a diagram for explaining a configuration of an electronic device according to an embodiment.
13 is a view for explaining a configuration of a display device according to an embodiment.
14 is a diagram for explaining a configuration of an image forming apparatus according to an embodiment.
15 is a diagram for explaining a cloud system using an image forming apparatus according to an embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as " comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a cloud system for printing or copying content stored in a user terminal according to an exemplary embodiment of the present invention to a display screen of a TV.

1, the cloud system 1 includes a cloud 10, an electronic device 20, and a display device 30. [ On the cloud system 1, the electronic device 20 and the display device 30 can be connected via the cloud 10. However, the cloud system 1 of FIG. 1 may include other general components not shown in FIG. 1, in addition to the above-described components.

The cloud 10 on the cloud system 1 may correspond to a server that performs various content processing such as storage, rendering, and transmission of the content. The cloud 10 may be implemented as a single server device or as a collection of server devices in which several server devices are logically connected.

The electronic device 20 on the cloud system 1 may correspond to, for example, a smart phone having mobile communication functions. That is, the electronic device 20 may correspond to a device that performs various functions to listen to content, store content, and transmit / receive content to other devices while the user is carrying it. Although the electronic device 20 is illustrated in FIG. 1 as being a smartphone, the electronic device 20 may be other types of devices such as a tablet device, a wearable watch device, a wearable eyeglass device, and the like. In addition, the cloud system 1 may include a computer such as a PC, a notebook computer, etc. instead of the electronic device 20 as a device for listening to the content, storing the content, and transmitting / receiving the content to other devices.

The display device 30 on the cloud system 1 may correspond to, for example, a TV. When the display device 30 corresponds to a TV, the display device 30 can function as a device for viewing a broadcast program received from a broadcaster. In addition, the display device 30 may include a function of displaying content on the Internet, a function of surfing the web, and the like, in addition to a broadcast program, such as recently released smart TV. 1, the display device 30 is exemplified as a TV, but not limited thereto, the display device 30 may include various devices having a display screen, for example, a smart phone, a tablet device, a PC, A notebook, a large format display (LFD), and the like.

That is, as shown in Fig. 1, the electronic device 20 on the cloud system 1 does not necessarily have to be a smart phone, and the display device 30 on the cloud system 1 does not necessarily have to be a TV. In other words, the roles of the electronic device 20 and the display device 30 on the cloud system 1 can be performed by various devices of other kinds not shown in Fig. 1 in addition to smart phones and TVs.

The electronic device 20 may store photographs taken by a camera module included in the electronic device 20, collected via the Internet, or received from another user. In addition, the electronic device 20 can display the pictures 1010 and 1020 to the user of the electronic device 20 through the display screen. According to the cloud system 1 of the present embodiment, the user can print or copy the photographs 1010 and 1020 stored in the electronic device 20 to the display screen of the display device 30. In other words, the electronic device 20 can output the photograph stored in the electronic device 20 to the display screen of the display device 30. [

More specifically, the electronic device 20 transmits the photo files associated with the photos 1010 and 1020 stored in the electronic device 20 to the cloud 10. The cloud 10 converts the file format of the received photo file into a predetermined document file format that the display device 30 can display. That is, the cloud 10 converts the photo file into a photo file of a specific document file format that can be displayed by the display device 30. [ The specific file format that the cloud 10 transforms may include, for example, a Portable Document Format (PDF) or an XPS document file.

The cloud 10 transmits the photo files 1010 and 1020 to the display device 30. The display device 30 can complete the operation of the display copy requested from the electronic device 20 by displaying the received photo files 1010 and 1020 on the display screen.

In this embodiment, the term "display copy" refers to the content stored in any source device (e.g., electronic device 20) as the display of at least one target device (e.g., display device 30) It is a function to display on the screen and can be widely defined. More specifically defined for the term "display copy ", a" display copy "means that, when a source device (electronic device 20) transmits content to the cloud 10, the cloud 10 sends the received content (E.g., the display device 30) is rendered / transformed from the cloud 10 into a predetermined document file format that can be displayed by the target device (the display device 30) Quot; may refer to a series of cloud service processes that receive content in a file format and display the content on a display screen. Further, the term "display copy" may also be defined to include the functions and operations of the various cloud services to be processed in the cloud system 1, which will be described below.

In other words, the display copy is displayed through the rendering / conversion process of the content by involvement of the cloud 10 in conformity with the display format of the target device. In this case, the content is directly transferred from the source device to the target device, Is simply displayed.

The display copy also differs from display mirroring technology. In general, display mirroring is different from the concept of the display copy of the present embodiment, since it means only a technology for controlling the display of the same screen like a mirror between different display devices.

The display copy is defined as a function to output the content stored in the source device (electronic device 20) to the content 1030 and 1040 on the display screen of the target device (display device 30), as described above . Thus, the display copy can be understood to be a paradigm different from hard copy or soft copy.

2 is a view for explaining the types of electronic devices and the types of display devices that may exist on the cloud system.

Referring to FIG. 2, electronic devices 500 and target devices 600 on the cloud system 1 may be interconnected via a cloud 10.

The electronic devices 500 may include an electronic device 20 (smart phone), an electronic device 51 (tablet device), a PC 52, a notebook 53, an image forming device 54, and the like. All of the electronic devices 500 are devices having various functions for controlling content such as a function of storing contents such as photographs, moving pictures, document files, a function of editing contents, a function of transmitting contents to other devices Various other devices as well as the electronic device 20 (smart phone), the electronic device 51 (tablet device), the PC 52, the notebook 53, the image forming device 54 shown in Fig. 3 .

The target devices 600 include an electronic device 21 (smart phone), a display device 30 (TV), an image forming device 55, an electronic device 62 (tablet device), a notebook computer 63, (64), and the like. All of the target devices 600 are devices having a display screen, and have a function of displaying contents such as photographs, moving pictures, document files, and the like. However, the target devices 600 include the electronic device 21 (smart phone), the display device 30 (TV), the display device 61 (LFD), the electronic device 62 ), The notebook computer 63, the PC 64, and various other devices.

3 is a diagram illustrating an example of utilizing the functionality of a display copy at remote offices in accordance with one embodiment.

3, it is assumed that the user A who uses the electronic device 20 works in the Seoul office and the user B who uses the display device 30 works in the New York office.

In the Seoul office, the user A can store the WORD document 3001 related to the minutes on the electronic device 20. [ Then, user A may wish to display a WORD document 3004 in user B who works in New York office. Here, the user A may desire to be displayed on the display device 30 used by the user B, rather than merely transmitting the WORD document 3001 in the user B. That is, the user A may desire to display the WORD document 3001 stored in the electronic device 20 on the display device 30 used by the user B. [ This may be the case where, for example, a user A who works in a Seoul office and a user B who works in a New York office proceed in a video conference in real time.

The electronic device 20 transmits the document file 3002 ("minutes.doc") corresponding to the stored WORD document 3001 to the cloud 10.

The cloud 10 renders / converts the document file 3002 ("minutes.doc") into a document format, such as PDF or XPS, of a file that the display device 30 can display. In general, the display device 30 such as a TV can not display the contents of each page of a document file such as a MicroSoft Word file, a MicroSoft PowerPoint file, etc., so that rendering / conversion processing by the cloud 10 is required . Thus, in the present invention, a document can be converted into a general document file format. The document format can be read or printed by the operating system, and can include a standard file format of the digital document in which the font, image, graphics, and document type of the original document are maintained.

The cloud 10 transmits the document file 3003 ("minutes.pdf") generated by the rendering / conversion to the display device 30.

The display device 30 displays each page 3004 of the document file 3003 ("minutes.pdf") received via the display screen. Thus, the user B can view and share the WORD document 230 stored in the electronic device 20 by the display copy requested by the user A on the display screen. Also, since the converted file 3003 retains the font, image, graphic, and document type of the original document, the user B selects the desired word (s) in each page 3004 of the document file 3003 Or search for photos.

3, a display copy function is performed between a remote Seoul office and a New York office. However, if the electronic device 20 and the display device 30 are connected to each other via the cloud 10, The function of the display copy as described above can be performed.

4 is a diagram illustrating a detailed hardware configuration of a cloud according to an exemplary embodiment.

4, the cloud 10 may include an API server 11, a rendering server 12, a control server 13, an authentication server 14, and a storage server 15. However, the cloud 10 of FIG. 4 may be implemented by additionally including other components not shown in FIG. 4, in addition to the above-described components.

The implementation of the cloud 10 may vary. For example, if at least one of the API server 11, the rendering server 12, the control server 13, the authentication server 14, and the storage server 15 is a physically separate server device, ) Can be implemented by building a framework for virtualizing independent server devices into one server device and logically connecting each other. Alternatively, the cloud 10 is implemented as a single server device, and the API server 11, the rendering server 12, the control server 13, the authentication server 14, and the storage server 15 may be implemented as a software module or a hardware module Lt; RTI ID = 0.0 > a < / RTI > server device. That is, the implementation of the cloud 10 is not limited by any one.

The API server 11 is a server that acts as a gateway to allow a device existing outside the cloud 10 to access the cloud 10. The API server 11 may be a REST API (Rewritable State Transfer Application Programming Interface) module, a RESTful API modules, and the like, but are not limited thereto.

The API server 11 is also a standardized protocol server for transferring messages between different devices (for example, the electronic device 20 and the display device 30) via the cloud 10. For example, The API server 11 may be implemented as an open protocol based server, such as an Extensible Messaging and Presence Protocol (XMPP) server, but may be implemented as a server using other types of protocols.

Rendering server 12 renders the content sent from the source device (e.g., electronic device 20) to fit the display format of the target device (e.g., display device 20). That is, the rendering server 140 may correspond to a rendering engine that renders / transforms the content. As described above, the rendering server 12 may, for example, render / transform a WORD file ("minutes.doc") sent from the electronic device 20 to a general purpose document file . Described in detail, a printer driver is generally a language that can interpret a document file (for example, a doc file, a ppt file), an image file (for example, a JPG file or a GIF file) (PDL), but the rendering server 12 can display the content on the display device 30 and render / convert the content into a document file format that can maintain the original format.

The rendering server 12 may include a plurality of rendering modules corresponding to the format of the content file. The rendering server 12 may include a plurality of rendering modules corresponding to all file formats in which the content can be represented, such as an image file format, a document file format, a moving image file format, and the like. The rendering server 12 may convert the received content into a predetermined document format content using a rendering module corresponding to the file format of the content. The document format is a standard file format for digital documents that can be read or printed by the operating system and retains the font, image, graphics, and document format of the original document. For example, the document format is pdf or XPS format.

The control server 13 controls the functions and operations of the other servers in the cloud 10, namely, the API server 11, the rendering server 12, the authentication server 14 and the storage server 15, respectively. On the other hand, when the application is executed on the electronic device 20 and the display device 30 shown in Fig. 1 or the like, the control server 13 transmits information processed in the chat room, for example, a transmission / reception of a chat message, And so on.

The authentication server 14 is a server for authenticating a user connected to the cloud 10. For example, when authentication is required to transmit the content of the document file format to the display device 30, it can be authenticated through the authentication server. The authentication server 14 may be replaced with an external authentication server (LDAP, etc.).

The storage server 15 stores various information processed in the cloud 10, stores the content transmitted from the source device (the electronic device 20), or stores the rendered content.

On the other hand, the cloud 10 can be implemented as Iaas (Infrastructure as a Services) such as Amazon EC2 (Elastic Compute Cloud) and Amazon S3 (Simple Storage Service) provided by AWS (Amazon Web Services). Alternatively, the cloud 10 may be implemented in a form having a cloud architecture that is independently built for B2B (Business to Business) without depending on an Iaas company or a Platform as a Services (Paas) provider. That is, the architecture implementation of the cloud 10 is not limited by any one.

5 is a view for explaining a detailed operation of a cloud for performing a function of a display copy in a cloud system according to an embodiment.

The electronic device 20 transmits the various identification information of the display device 30 and the unique name of the display device 30 to the cloud 10 using the application to transmit the display device 30 to the cloud 10. [ . Here, the identification information of the display device 30 may include a MAC address, a serial number, an IP address, and the like of the display device 30. The unique name of the display device 30 may be a name May be a randomly set nickname. The electronic device 20 can also use the application to send the login information of the user of the electronic device 20 to the cloud 10 (web address (URL) of the API server 11). Thereafter, the electronic device 20 can log in to the cloud 10 using the user's login information.

The display device 30 can also receive various control information for displaying the content from the cloud 10 (control server 13) using the application. For example, the control information may include information about the display styles (display time, screen switching interval, etc.) of the content, the page number of the content to be displayed, and the like.

5, the content stored in the electronic device 20 can be displayed on the display screen of the display device 30 via the cloud 10. [

In step 501, the electronic device 20 designates the content to be requested and a display device to transmit the display copy to the API server 11. That is, the electronic device 20 shares the content with the cloud 10.

In step 502, the API server 11 transmits the content transmitted from the electronic device 20 to the control server 13. That is, the API server 11 shares the content with the control server 13.

In step 503, the control server 13 may control the storage server 15 so that the transferred content is stored in the storage server 15. [

In step 504, the control server 13 generates an instruction of a rendering operation for the content whose display copy is requested, and transmits an instruction of the rendering operation to the rendering server 12. Here, the rendering operation is for rendering / converting the file format of the content into a document file format that can be displayed on the display device 30. The rendering server 12 stores the received rendering job in a queue.

In step 505, the rendering server 12 requests the storage server 15 to transfer the content to be rendered, in the order of processing the rendering job stored in the queue.

In step 506, the storage server 15 transmits the content to be rendered to the rendering server 12.

In step 507, the rendering server 12 renders / converts the file format of the content transmitted from the electronic device 20 into a document file format that can be displayed on the display device 30. For example, you can render doc, pptx, xlsx, and other files to a file in the format pdf, xps, and so on.

In step 508, when the rendering is completed, the rendering server 12 stores the rendered content (general-purpose document files or compressed files of general-purpose document files) in the storage server 15.

In step 509, the API server 11 may receive content request and authentication information from the display device 30 specified by the electronic device 20. [ Alternatively, according to another embodiment, the API server 11 can request content from the display device while requesting authentication information.

In step 510, the API server 11 may transmit a request to the control server 13 to confirm the authentication information of the display device 30. [

In step 511, the control server 13 may request the authentication server 14 to confirm the authentication information of the display device 30. [

In step 512, the authentication server 14 can perform authentication of the display device 30 by comparing the authentication information previously stored with the authentication information received from the display device 30. When the authentication is confirmed, the authentication server 14 May transmit to the control server 13 that the authentication information has been confirmed.

In step 513, the control server 13 may request the storage server 15 to transmit the rendered content.

In step 514, the storage server 15 may transmit the rendered content to the display device 30. At this time, the storage server 15 can provide the storage device 15 with a storage directory, for example, a web address (URL), to which the application of the display device 30 can access the display device 30. Then, the display device 30 can access the web address (URL) and download the rendered content.

In step 515, the display device 30 is controlled such that the content requested to be displayed on the display screen of the display device 30 is displayed.

6 is a diagram for explaining an operation of a cloud server for transmitting content including an attachment file to a display device according to an embodiment.

6, the electronic device 20 sends the requested document file ("My Documents.pptx") 610 to the rendering server 12 with a display copy. As described above, it can be assumed that the document file 610 created with Microsoft PPTX (R) software corresponds to a file format that can not be displayed directly on the display device 30. [

A document file ("My Documents.pptx") 610 may contain the contents of a total of three pages 611, 612 and 613. For example, in the document file 610, the contents of the first page 611 may correspond to the photograph, and the contents of the second and third pages 612 and 613 may correspond to the essay. Also, a document file ("My Documents.pptx") 610 may include an attachment ("A.docx") in the document. It can be assumed that the attached file corresponds to a file format that can not be displayed directly on the display device 30. [

The rendering server 12 can check whether the attached file is inserted by extracting the document file ("My Documents.pptx") 610 and checking whether there is an emgeddings folder for each format. If you unzip the file, you can check the link information of the attached file, and you can check which page of the document file the attached file is linked to.

The rendering server 12 renders / converts each of the pages 611, 612, and 613 of the document file 610 to fit the display format of the display device 30. For example, the rendering server 12 may render / convert each of the pages 1611, 1612, and 1613 of the document file 1610 to a document file format (PDF, XPS, etc.). The rendering server 12 may also render / convert the attachment ("A.docx") associated with the page 1613 to a document format.

Thereafter, the rendering server 12 may generate each of the rendered / translated pages 621, 622, and 623 and the attachment 614 as a single content file ("My Documents.pdf") 620 have.

The rendering server 12 transmits the content file ("My Documents.pdf") 620 of the converted document format to the display device 30. [ The display device 30 can complete the display copy requested from the electronic device 20 by displaying the document content of each of the pages 621, 622 and 623. At this time, when the display of the specific page (for example, page 3 623) is commanded from the control server 13, the display device 30 can display the commanded specific page (third page 623) first have.

Further, when the display device 30 selects the attachment file ("A.pdf") from the user, the rendered attachment file can be displayed on the screen.

7 is a view for explaining an operation of a cloud server for transmitting a content including a hyperlink to a display device according to an embodiment.

7, the electronic device 20 transmits the requested document file ("My Documents.pptx") 710 to the rendering server 12 with a display copy. A document file ("My Documents.pptx") 710 may contain the contents of a total of two pages 711 and 712. Also, a document file ("My Documents.pptx") 710 may include a hyperlink (" http://www.samsung.com ") 713 in the document.

Among the document formats, pdf, xps, doc, ppt, xls, pptx, docx, xlsx etc. can contain hyperlinks in the document. A hyperlink is an icon, image, or text that, when clicked, leads to another part of the current page or to a completely different page. A hyperlinked document rendered as an image file or a document file may be less useful when a hyperlinked document is displayed because a hyperlinked document can not be maintained through the rendering of printing the document. Therefore, there is a need to convert the hyperlink information into a hyperlink format that can be used in a general purpose document file so that the hyperlink can be maintained in the converted document.

The rendering server 12 may parse the document file to determine whether hyperlink information is included in the document. The rendering server 12 may parse the document file ("My Documents.pptx") 710 to verify the hyperlink 713 and then convert it to hyperlink information that can be used in the document format of pdf or xps.

The rendering server 12 renders / converts each of the pages 711 and 712 of the document file 710 into the content of the document format so as to conform to the display format of the display device 30. [ For example, the rendering server 12 may render / convert each of the pages 711 and 712 of the document file 710 to a document file format (PDF, XPS, etc.). The rendering server 12 also converts the hyperlink 713 included in the page 712 into a hyperlink 723 of a form that can be used in the general purpose document file format (PDF, XPS, etc.) ("My Documents.pdf") 720 by inserting a hyperlink into the second page 712.

The rendering server 12 transmits a content file ("My Documents.pdf") 720 of the converted document format to the display device 30. [ The display device 30 may complete the requested display copy from the electronic device 20 by displaying the document content of each of the pages 721 and 722. [ At this time, when the display of the specific page (for example, the second page 722) is commanded from the control server 13, the display device 30 can display the specified specific page (second page 722) first have.

In addition, when the display device 30 selects the hyperlink 723 from the user, it can display a job connected to the hyperlink 723. [ That is, if the electronic device 20 has accessed the web page through the hyper link 713, the display device 30 can access the same web page through the hyper link 723. [

FIG. 8 is a diagram for explaining a function of sharing content using an electronic code according to an embodiment.

Referring to FIG. 8, the electronic device 20 may request insertion of an electronic code when transmitting content to the cloud 10. The electronic device 20 sends a document file ("My Documents.doc") 801 containing a request for insertion of the electronic code to the rendering server 12. For example, a document file ("My Documents.doc") 801 may include image content 802.

The cloud 10 renders / transforms the image content 802 included in the document file 801 into the content of the document format in conformity with the predetermined document format, and renders / transforms the content 804 into the document format 804 of the document format. The electronic code 805 corresponding to the content of the document format can be generated and inserted into the content 803 of the document format. The electronic code 805 is a QR code or bar code. The electronic code 805 includes identification information (MAC address, serial number, IP address, etc.) of the electronic device 20, an address where the content 803 of the document format is stored, identification information of the content 803 of the document format, can do.

The cloud 10 may transmit the content 803 of the document format in which the electronic code 805 is inserted to the display device 30. [

The display device 30 can display the content of the document format in which the electronic code 805 is included. That is, the electronic code 805 can be displayed on the screen of the display device 30. [

The other display device 21 can scan an electronic tag displayed on the display device 30 using a camera module, a bar code reader, an electronic tag recognition device, or the like. The other display device 21 can be connected to the cloud 10 in which the content 803 of the document format is stored by scanning the electronic tag 805. [

The cloud 10 may transmit the content ("My Documents.pdf") 806 of the rendered document format to another display device 21 connected to the cloud 10 by scanning the electronic tag 805. [ At this time, the cloud 10 can transmit the content ("My Documents.pdf") 806 of the document format in which the electronic tag is not inserted or the content 805 of the document format in which the electronic tag is inserted. The content of the document format ("My Documents.pdf") 806 has been transmitted by the electronic device 20 and may include rendered image content 804.

The other display device 21 can display the content ("My Documents.pdf") 806 of the document format received from the cloud 10. [

When the other display device 21 receives the content of the inserted document format in which the electronic tag 805 is inserted, the content may be shared by another display device.

9 is a flowchart illustrating an operation of transmitting a content to a display device using a security code according to an exemplary embodiment.

In step 901, the electronic device 20 designates the display device 30 to receive the content to the cloud 10, and can set the authentication method necessary for browsing the content to the cloud by setting the setting method. The authentication method is an authentication procedure required for the display device 30 to display the content received from the cloud 10. [ For example, the authentication method may include ID / PW input, fingerprint input, pin code input, device authentication, release code authentication method, and the like.

In step 901, the electronic device 20 can transmit the content in which the authentication method using the security code is set to the cloud 10.

In step 902, the cloud 10 may issue a security code for identifying the content, for example, a personal identification number (PIN) code.

In step 903, the cloud 10 may send a security code to the electronic device 20. [ The security code may be provided to the user by being displayed on the screen of the electronic device 20 or displayed to the user through another device owned by the user of the electronic device 20. [

In step 904, the cloud 10 may render / convert the content including the electronic code information into the content of the document format.

In step 905, the cloud 10 may request the security code to the display device 30 designated by the electronic device 10. [ For example, the cloud 10 can control the security code input window to be displayed on the screen of the display device 30. [

In step 906, the user of the display device 30 can input the electronic code issued by the cloud 10 using the user interface means of the display device 30 or the remote controller. At this time, the application of the display device 30 can transmit the identification information of the display device 30 including the MAC address, the IP address, and the serial number of the display device 30 and the inputted security code to the cloud 10.

In step 907, the cloud 10 may compare the received security code with the issued security code, and may transmit the content of the document format rendered to the display device 30 when the security codes match.

In step 908, the display device 30 can display the content of the received document format.

According to another embodiment, the cloud 10 may transmit the content of the encrypted document format to the display device 30. [ The display device 30 may input the security code to browse the content of the rendered document format. If the input security code is equal to the security code issued by the cloud 10, the display device 30 can display the content of the document format.

FIG. 10 is a diagram for explaining how an electronic device performs a function of a display copy when a content is transmitted by defining a virtual display device according to an embodiment.

In step 1001, the electronic device 20 can transmit the content without designating the display device. That is, the electronic device 20 can transmit the content to the cloud 10 while designating the virtual display device.

In step 1002, the cloud 10 may issue a security code for identifying the content, for example, a personal identification number (PIN) code.

In step 1003, the cloud 10 may transmit the security code to the electronic device 20. [ The security code may be provided to the user by being displayed on the screen of the electronic device 20 or displayed to the user through another device owned by the user of the electronic device 20. [

In step 1004, the cloud 10 may render / convert the content including the electronic code information into the content of the document format.

In step 1005, an unspecified device, such as image forming device 55, may request content from the cloud 10.

In step 1006, the cloud 10 may request the security code to the image forming apparatus 55 not specified by the electronic device 10. [ For example, the cloud 10 can control the security code input window to be displayed on the screen of the image forming apparatus 55. [

In step 1007, the user of the image forming apparatus 55 can input the electronic code issued by the cloud 10 using the user interface means of the image forming apparatus 55 or the remote controller. At this time, the application of the image forming apparatus 55 transmits the identification information of the image forming apparatus 55 including the MAC address, the IP address, and the serial number of the image forming apparatus 55, and the inputted security code to the cloud 10 .

In step 1008, the cloud 10 may compare the received security code with the issued security code, and may transmit the content of the document format rendered by the image forming apparatus 55 when the security codes match.

In step 1009, the image forming apparatus 55 can display the content of the received document format.

According to another embodiment, the cloud 10 may transmit the content of the encrypted document format to the image forming apparatus 55 which is an unspecified device. The image forming apparatus 55 can input a security code for browsing the content of the rendered document format. If the input security code is the same as the security code issued by the cloud 10, the image forming apparatus 55 can display the content of the document format.

11 is a view for explaining a process of performing a scan-to-display copy in an image forming apparatus according to an embodiment.

Referring to FIG. 11, the cloud system includes a cloud 10, an image forming apparatus 54, and a display apparatus 30. The image forming apparatus 54 and the display apparatus 30 on the cloud system 1 can be connected via the cloud 10. [ Compared with the cloud system 1 of Fig. 1, the cloud system of Fig. 32 is an image forming apparatus 54, not the electronic device 20, as a source device for requesting a display copy. Thus, instead of requiring a display copy for the content stored in electronic device 20 as described above, the cloud system of Figure 32 can request a display copy of the document scanned by image forming device 54 have.

More specifically, the image forming apparatus 54 scans the document 1101 to generate scan data 1102 and transmits the scan data 1102 to the cloud 10. The cloud 10 converts the file format of the received scan data 1102 into a document file format that the display device 30 can display. That is, the cloud 10 converts the scan data 1102 into scan data 1103 in a document file format of a predetermined document file format that can be displayed by the display device 30. [

The cloud 10 transmits the scan data 1103 to the display device 30. The display device 30 can display the received scan data 1103 on the display screen 1104 and complete the operation of the display copy requested from the image forming device 54. [

As described above, the function of outputting the document scanned by the image forming apparatus 54 on the display screen of the display device 30 in the cloud system can be defined in terms of "Scan-to-DisplayCopy" have. Alternatively, such a function may be replaced with another term having a similar meaning to "Scan-to-DisplayCopy ".

12 is a diagram for explaining a configuration of an electronic device according to an embodiment.

12, the electronic device 20 may include a user interface unit 201, a control unit 202, and a network interface unit 203. [

The user interface unit 201 can display pictures, documents, images or videos of a photo gallery application installed in the electronic device 20. [ Also, the user interface unit 201 can display web pages running in the web browsing application, images included in the web page, and can display attached documents, attached pictures, mail body, etc. of the mail application Can be displayed. Furthermore, the display unit 201 can display a chat room screen, chat messages, and the like of a messenger application installed in the electronic device 20, and can display a print application capable of performing a function of a display copy. That is, the user interface unit 201 can display various execution screens of applications installed in the electronic device 20 and contents provided by the applications.

The user interface unit 201 can receive a user input for selecting various kinds of contents in a running application or a user input for creating a content (document).

Further, the electronic device 20 can use the user interface unit 201, and the display device 30 can set output options as display settings. For example, it is possible to set the screen display area, the screen display magnification, the display screen, the N-up, the orientation of the paper, whether the color is monochrome.

The display setting of the screen display area is a setting related to the position of the area where the content is to be displayed or the position of the blank area. For example, the display device 30 can set a top margin, a bottom margin, a left margin, and a right margin as display settings of a screen display area. The content requested for display copy may be displayed in the remaining area except for the margin area.

The display setting of the screen display magnification is a setting related to the ratio of the area occupied by the content to be displayed on the screen of the display device 30. [ For example, when the screen display magnification is 80%, only 80% of the entire screen of the display device 30 is set as the area in which the content is to be displayed, and the remaining 20% is set as the blank area. For example, when the screen display area is set to the upper margin and the screen display magnification is set to 80%, the display device 30 sets 20% of the upper part of the entire screen as a blank area, and 80% Is set as an area to be displayed.

N-up means a page of a document to be displayed on the screen of the display device 30. [ For example, when the N-up of the content is set to three, three documents included in the content may be displayed on the screen of the display device 30.

The electronic device 20 can designate the display device 30 by inputting the ID of the display device 30 using the user interface unit 201. [ The electronic device 20 can also use the user interface unit 201 to determine the type of the display device 30 and the authentication method when the content is transmitted to the cloud 10, The authentication method, and the number of display devices that can be shared per content.

The control unit 202 can control the overall operation of the electronic device 20. [ For example, the control unit 202 can execute a photo gallery application, a web browsing application, a mail application, a document creation application, and the like. Also, the control unit 202 can execute a messenger application, a print application, and the like. Accordingly, the user can use the applications executed by the control unit 202 to select the content to request the display copy through the user interface unit 201, or to directly create the content to request the display copy. On the other hand, the user can share content to request a display copy using a messenger application executed by the control unit 202 or a messenger application executed in the printer application.

The network interface unit 203 can transmit the content to the cloud 10 when a display copy of the content is requested. The network interface unit 203 may include one or more components that perform communication between the electronic device 20 and the cloud 10 or between the electronic device 20 and other external devices. For example, the network interface unit 203 may include a local communication unit, a mobile communication unit, and a broadcast receiving unit.

A short-range wireless communication unit includes a Bluetooth communication unit, a Bluetooth low energy (BLE) communication unit, a near field communication unit, a WLAN communication unit, a Zigbee communication unit, Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, an UWB (ultra wideband) communication unit, an Ant + communication unit, and the like.

The mobile communication unit transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data depending on a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The broadcast receiving unit receives broadcast signals and / or broadcast-related information from outside through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Depending on the implementation, the electronic device 20 may not include a broadcast receiver.

13 is a view for explaining a configuration of a display device according to an embodiment.

13, the display device 30 includes a display unit 301, an audio output unit 302, a control unit 303, a network interface unit 304, a memory 305, and a memory card connection unit 306 can do.

The display unit 301 may include various types such as a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT-LCD), an organic light emitting diode (OLED), a three dimensional display (3D display), an electrophoretic display Can be implemented.

When the display device 30 is a TV, the display unit 301 can display broadcast data. When the display device 30 is an LFD, the display unit 301 can display an advertisement, a guidance screen, broadcast data, have. 3, the display device 30 includes an electronic device 21 (smart phone), an electronic device 62 (tablet device), an image forming device 55, a notebook computer 63, a PC (64), etc., and thus can display execution screens of various applications.

The sound output unit 302 outputs the audio of the broadcast data. The sound output unit 302 may output a sound signal related to a function (e.g., a call signal reception sound, a message reception sound, a notification sound) performed in the display device 30. [ The sound output unit 2012 may include a speaker, a buzzer, and the like.

The control unit 303 is hardware implemented with at least one processor and can control the overall functions and operations of the configurations in the display device 30. [

The control unit 303 may execute an agent application 35 for supporting a cloud service such as a display copy.

The network interface unit 304 can receive broadcast signals and / or broadcast-related information from outside through a broadcast channel such as a satellite channel or a terrestrial channel by using a broadcast receiving module. The network interface unit 304 can be connected to the Internet or an intranet by wired or wireless using a Wi-Fi module, an Ethernet module, or the like. The display device 30 can communicate with the cloud 10 using the network interface 304. [

The memory 305 may store programs for processing and control of the control unit 303 and may also store various data (e.g., broadcast data, advertisement data, applications, content (documents, Etc.). In particular, memory 305 may store an agent application 35 for supporting cloud services such as display copies. In addition, the memory 305 may store various identification information of the display device 30, a unique name of the display device 30, and the like. Here, the identification information of the display device 30 may include a MAC address, a serial number, an IP address, etc. of the network interface 304, and the unique name of the display device 30 may be used for the display device 30 It may be a nickname set by the user arbitrarily.

The memory 305 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory) , An optical disc, and the like.

The memory card connection unit 306 is hardware capable of connecting to external portable storages such as a USB (Universal Serial Bus) device, an SD card (Secure Digital Card), and the like. The memory card connection unit 306 can receive data stored in a USB device, an SD card, or the like from a USB device, an SD card, or the like.

The control unit 303 can complete the operation of the display copy by controlling the rendered content (the content of the document format) received from the cloud 10 to be displayed through the display unit 301. [ If the compressed file is received from the cloud 10, the control unit 303 decompresses the compressed file to extract the content of the document format, and the content of the extracted document format is displayed on the display unit 301 So that the operation of the display copy can be completed.

14 is a diagram for explaining a configuration of an image forming apparatus according to an embodiment.

The configurations of the image forming apparatus 54 shown in Fig. 14 may correspond to only the configurations related to the operation of the display copy, but are not limited thereto. Although not shown in Fig. 14, the image forming apparatus 54 shown in Fig. 14 may additionally include other general configurations. In addition, the operation of the image forming apparatus 54 described in the other drawings of this specification can be performed by the configurations of the electronic apparatus 54 shown in Fig.

The scanning unit 541 scans a document to generate scan data (a scanned image file or a scanned document).

The control unit 542 can control the overall functions of the image forming apparatus 54. [ For example, the control unit 542 may control the scanning operation of the scanning unit 541, control the display of information through the operation panel 542, process the information input through the operation panel 542, And the data transmission / reception of the interface unit 544 can be controlled. The control unit 542 can execute a print application, a messenger application, or the like, installed in the image forming apparatus 54, supporting a function of a scan-to-display copy.

Operation panel 542 displays a print application or messenger application that supports the function of a scan-to-display copy. When the scan by the scanning unit 541 is completed, the operation panel 542 displays a print application or a messenger application, thereby displaying a target device (for example, the display device 30) Can be displayed. The operation panel 542 may receive a user input specifying the target device (e.g., the display device 30) through such a user interface screen. That is, the operation panel 542 corresponds to the input / output hardware for displaying the information processed by the image forming apparatus 54 or receiving information from the user.

The network interface unit 544 may transmit the scan data (scan image file or scan document) to the cloud 10 when a scan-to-display copy is requested. The network interface 544 may also send information about the target device (e.g., the display device 30) of the scan-to-display copy to the cloud 10. The network interface unit 544 can access the Internet or the intranet by wire or wireless using wired / wireless communication means such as a Wi-Fi module, an Ethernet module and the like.

The display unit 545 may be formed of various types such as a liquid crystal display (LCD), a thin film transistor liquid crystal display (TFT-LCD), an organic light emitting diode (OLED), a three dimensional display (3D display), an electrophoretic display Can be implemented.

15 is a view illustrating an image forming apparatus according to an embodiment connected to a user terminal or a server.

As shown in FIG. 15, the user terminal 200 may include an input / output unit 210, a control unit 220, a communication unit 230, and a memory 240. The control unit 220 may control the image forming operation by executing the program stored in the memory 240 and transmitting the resulting signal or data to the image forming apparatus 100 through the communication unit 230. [ The user terminal 200 may include, for example, a smart phone, a tablet, a PC, a home appliance, a medical device, a camera, and a wearable device.

Meanwhile, the communication unit 130 is directly connected to the server 300 and can transmit and receive signals or data. Also, the communication unit 130 may be connected to the user terminal 200 through the server 300. That is, the communication unit 130 of the image forming apparatus 100 can transmit and receive signals or data to / from the communication unit 230 of the user terminal 200 through the server 300.

Various types of data such as programs and files such as an application can be installed and stored in the memory 140. [ The control unit 120 may access the data stored in the memory 140 and use the data or store the new data in the memory 140. [ Also, the control unit 120 may execute a program installed in the memory 140. [ In addition, the control unit 120 may install the application received from the outside via the communication unit 130 in the memory 140. [

The image forming operation unit 150 can perform an image forming operation such as printing, scanning, or faxing.

The image forming operation unit 150 is shown as including a printing unit 151, a scanning unit 152 and a facsimile unit 153. The image forming operation unit 150 may include only some of these components, And may further include a configuration for performing the operation.

The printing unit 151 can form an image on a recording medium by various printing methods such as an electrophotographic method, an inkjet method, a thermal transfer method, and a direct thermal method.

The scanning unit 152 irradiates the original with light, receives the reflected light, and reads the image recorded in the original. For example, a CCD (Charge Coupled Device) or a CIS (contact type image sensor) may be employed as the image sensor for reading an image from the original. The scanning unit 152 includes a flatbed structure in which the document is positioned at a fixed position and the image sensor is moved while reading an image, a document feeder in which the image sensor is positioned at a fixed position, ) Structure, and a composite structure thereof.

In the case of the fax unit 153, the configuration for scanning the image can be shared with the scanning unit 152, the configuration for printing the received file can be shared with the printing unit 151, , Or can receive a file from the outside.

The names of the components of the image forming apparatus 100 described above may vary. In addition, the image forming apparatus 100 according to the present disclosure may be configured to include at least one of the above-described elements, and some of the elements may be omitted or further include other additional elements.

Meanwhile, the user interface device 110 may have a unique control system. A control system and a memory for controlling a user interface (UI) provided by the user interface device 110 may be provided separately from the control unit 120 of the image forming apparatus 100 . The control system of the user interface device 110 may be provided with an OS (Operating System) for providing a UI and an application for supporting various functions.

The above-described embodiments of the present invention can be embodied in a general-purpose digital computer that can be embodied as a program that can be executed by a computer and operates the program using a computer-readable recording medium. In addition, the structure of the data used in the above-described embodiments of the present invention can be recorded on a computer-readable recording medium through various means. The computer-readable recording medium includes a storage medium such as a magnetic storage medium (e.g., ROM, floppy disk, hard disk, etc.), optical reading medium (e.g., CD ROM,

The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (20)

Receiving content containing a request to transfer content from an electronic device to a display device designated by the upper electronic device, rendering the received content in a predetermined document format, and transmitting the content of the document format to the display device , Cloud server. The method according to claim 1,
Wherein the rendering module converts the received content into a predetermined document format content using a rendering module corresponding to a file format of the content among the plurality of rendering modules. The method according to claim 1,
Wherein the document format is a standard file format of a digital document that can be read or printed by an operating system and maintained in fonts, images, graphics, and document formats of the original document. The method according to claim 1,
Identify an attachment included in the content, render the attachment in a predetermined document format, and insert the rendered attachment in the content of the document format. The method according to claim 1,
Identify a hyperlink contained in the content, convert the hyperlink into a format usable in the content of the document format, and insert the converted hyperlink into the content of the document format. The method according to claim 1,
Wherein the first display device transmits content of a document format including an electronic code corresponding to the information of the content of the document format to the first display device at the request of the electronic device, In response to a request from a second display device that has recognized the first display device, transmits the content of the document format to the second display device. The method according to claim 1,
Wherein when the electronic device designates the display device including the authentication method, the content of the document format is transmitted upon receiving the authentication information corresponding to the authentication method from the display device. The method according to claim 1,
When the electronic device designates a display device including a security code authentication method, a security code corresponding to information of the content of the document format is generated and transmitted to the electronic device, and after requesting the security code to the display device And transmits the content of the document format to the display device upon receiving the security code. The method according to claim 1,
Storing the content of the rendered document format of the content in a storage server when the electronic device designates a virtual display device and receiving a content request including user authentication information from an unspecified display device, And transmits the content of the document format to the device. The method according to claim 1,
A content list of at least one document format is transmitted in response to receiving a content list request including user authentication information from an unspecified display device and the content list of at least one document format is selected from the display device And requests authentication information corresponding to the content of the selected document format to the unspecified display device. The method according to claim 1,
An authentication method in the case of transmitting the content of the document format in the cloud server, an authentication method in the case of displaying the content of the document format in the display device, Wherein at least one of the output options of the content of the document format is set. The method according to claim 1,
When the electronic device is an image forming apparatus,
Wherein the image forming apparatus scans a document to generate scan data, selects a display device to which the scan data is to be transmitted using an application, and sets an output option of the scan data. A method of providing a service for a display of a cloud server,
The method comprising: receiving content including a request to transfer content from an electronic device to a display device specified by the electronic device;
Rendering the received content in a predetermined document format; and
And transmitting the content of the document format to the designated display device. 14. The method of claim 13,
Wherein the rendering comprises:
Wherein the cloud server converts the received content into a predetermined document format content using a rendering module corresponding to a file format of the content among a plurality of rendering modules. 14. The method of claim 13,
Wherein the document format is a standard file format of a digital document that can be read or printed by an operating system and wherein fonts, images, graphics, and document formats of the original document are maintained. 14. The method of claim 13,
Wherein the rendering comprises:
Confirming an attachment included in the content;
Rendering the attachment in a predetermined document format; and
And inserting the rendered attachment into the content of the document format. 14. The method of claim 13,
Wherein the rendering comprises:
Confirming a hyperlink included in the content;
Converting the hyperlink into a format usable in the content of the document format; and
And inserting the converted hyperlink into the content of the document format. 14. The method of claim 13,
Transmitting content of a document format including an electronic code corresponding to information of the content of the document format to a first display device at the request of the electronic device;
Responsive to a request of a second display device recognizing an electronic code of the content of the document format displayed on the first display device, transmitting the content of the document format to the second display device. The method according to claim 1,
Generating a security code corresponding to information of the content of the document format when the electronic device specifies a display device including a security code authentication method;
Transmitting the security code to the electronic device;
Requesting the security code to the display device;
And transmitting the content of the document format to the display device upon receiving the security code from the display device. A computer-readable recording medium storing a program for causing a computer to execute the method according to any one of claims 13 to 19.

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