KR20190064539A - Method and Device for annotating a web page - Google Patents

Abstract

Disclosed are a method for sharing presentation data, interaction, and annotation information among devices, and a device thereof. According to one embodiment of the present invention, the method comprises the steps of: converting presentation data into at least one image; transmitting the at least one converted image to a second device; displaying the at least one image and transmitting identification information of the displayed image to the second device; adding annotation data to the displayed image based on a user input; and transmitting annotation information about the added annotation data to the second device. The second device displays an image corresponding to the identification information of the image on a screen of the second device and displays the annotation information on the image disposed in the second device. According to the present invention, meeting materials can be rapidly shared.

Description

Method and device for annotating a web page "

The present invention relates to a method and apparatus for sharing presentation data between devices used by a plurality of users. Specifically, the present invention relates to sharing a document and the like used in a presentation, and synchronizing an interaction such as annotation, memo, and the like added to the document, page change, and the like.

Conventionally, a method of sharing a presentation is generally divided into a lecturer and a learner, or a host and a participant. Even if both directions are used, the variety of usability and the ability of many users to participate together are limited. There is no inconvenience of sharing large-volume announcements and no history and management of annotation of presentation.

As the types of smart devices have diversified and their usage has increased, there have been many cases in which each content is represented on the screen of each smart device. The tendency to share and experience with other users is also increasing. There is also a tendency to easily and intuitively share interactions that occur in meetings, meetings, and lecture rooms.

The present invention seeks to provide users who use the device with a meeting or a user experience that is appropriate for the participants in the representation of the user with multiple users. Converting conference materials into images, transferring and sharing them quickly, and sharing paperless notes and annotations added during the conference, it is possible to implement a paperless office. .

It also provides Smart Sync, which synchronizes the annotation information added during the conference without any additional process even if it is added to the ongoing conference.

According to another aspect of the present invention, there is provided a method of sharing presentation data with a second device, the method comprising: converting presentation data into at least one image; Transmitting the transformed at least one image to a second device; Displaying at least one image and transmitting identification information of the displayed image to a second device; Adding annotation data to the displayed image based on user input; And transmitting annotation information on the annotation data to the second device, wherein the image identification information is used by the second device to display an image corresponding to the image identification information on the screen of the second device And annotation information may be used by the second device to display annotation information for the image displayed on the second device.

Further comprising transmitting the identification information of the switched image to the second device when the displayed image is switched to another image, wherein the switched image identification information includes an image corresponding to the image identification information On the screen.

In addition, the above-described method may further comprise: receiving annotation information generated by the second device from the second device; And displaying annotation data included in the received annotation information for the displayed image.

Also, in the case of transmitting the annotation information to the second device, when the recording mode of the first device is the private memo mode, the annotation information is prevented from being transmitted to the second device, And in the case of a public writing mode, annotation information may be transmitted to the second device.

A method for sharing presentation data with a first device for solving the above-mentioned problems is a method for sharing presentation data with a first device by using at least one of presentation data converted from at least one image and identification Receiving information; Displaying an image corresponding to the image identification information among the received at least one image on the screen of the second device; Receiving annotation information from a first device; And displaying annotation data on the image displayed on the screen of the second device based on the received annotation information, wherein the received annotation information is displayed on the screen of the first device based on user input of the first device And annotation data added to the displayed image.

In addition, the above-described method may further comprise: receiving image identification information converted from the first device; And displaying the image corresponding to the switched image identification information on the screen of the second device, wherein the switched image identification information includes information indicating that the switched image is displayed on the screen of the first device when the display is switched to another image And information indicating the information to be transmitted.

When the view mode of the second device is a private view mode, only the annotation data based on the user input of the second device is displayed in the step of displaying the annotation data in the above-described method, The annotation data based on the user input of the second device and the annotation data based on the annotation information received from the first device are displayed together when the view mode of the second device is the public view mode .

If the view mode of the second device is a user view mode, annotation data included in the annotation information received from the first device according to the setting of the user view mode may be displayed.

The step of displaying the image corresponding to the converted image identification information on the screen of the second device may further include a step of, when the second device is in the page asynchronous mode, displaying, on the basis of the converted image identification information received from the first device, And switching the displayed image based on the user input of the second device when the second device is in the page synchronous mode.

According to an aspect of the present invention, there is provided an apparatus comprising: a data conversion unit for converting presentation data into at least one image; A display unit for displaying a predetermined image of at least one of the converted images on the screen of the first device; An input interface for receiving annotation data; An information processing unit for generating annotation information including image identification information and annotation data of the displayed image; And a communication unit for transmitting the converted at least one image, image identification information, and annotation information to the second device, wherein the image identification information indicates that the second device displays the image corresponding to the image identification information on the screen of the second device And the annotation information is used to indicate that the second device is used to display the annotation information on the image displayed on the second device.

According to another aspect of the present invention, there is provided an information processing apparatus including: a communication unit for receiving at least one image from a first device, identification information of an image displayed on a screen of a first device, and annotation information; And a display unit displaying an image corresponding to the image identification information among the received at least one image on the screen of the second device and displaying annotation data on the image displayed on the screen of the second device, And annotation data added to the image displayed on the screen of the first device based on the user input of the first device.

According to an embodiment of the present invention, the presentation data can be converted into an image and shared so that the conference data can be quickly shared. Also, prior to the transmission of all the presentation data, the necessary data can be distributed at the beginning of the meeting, so that the meeting can be started and proceeded promptly.

According to an embodiment of the present invention, since the annotation is shared between the devices, there is an effect of alleviating the necessity of separately preparing minutes and records.

According to an embodiment of the present invention, even if a page synchronization with a host device is in progress, the user can cancel the synchronization mode at any time and search for necessary data.

1 shows a presentation data sharing system according to an embodiment of the present invention.
2 is a diagram illustrating a screen for configuring a meeting room according to an embodiment of the present invention.
FIG. 3 illustrates a method of sharing presentation data according to an embodiment of the present invention. Referring to FIG.
3A shows that the first device 110 transmits the presentation data to the second device 120 without any conversion.
FIG. 3B shows that the first device 110 converts the presentation data into a predetermined format and transmits the converted data to the second device 120. FIG.
4 shows a method of converting presentation data into an image in the case where the presentation data includes main contents, a script, footnotes or the like.
5 shows a method for sharing annotation information among the devices constituting the system.
6 shows a method of controlling the synchronization of annotation data or controlling the display of annotation data according to the mode.
Figure 7 illustrates page synchronization in accordance with an embodiment of the present invention.
8 illustrates a presentation data sharing system according to another embodiment of the present invention.
9 is a diagram illustrating a configuration of a host device according to an embodiment of the present invention.
10 is a diagram illustrating a configuration of a participant device according to an embodiment of the present invention
11 is a flow diagram illustrating a method for a host device according to an embodiment of the present invention to transmit presentation data, annotation data, and information needed by a participant device to synchronize displayed pages.
12 is a flowchart illustrating a method of synchronizing a participant device with a host device based on data received from the host device in accordance with an embodiment of the present invention.

1 shows a presentation data sharing system according to an embodiment of the present invention. Referring to FIG. 1, the first device 110 functions as a host device. The presentation data displayed on the first device 110 is transmitted to a plurality of devices constituting the system such as the second device 120, the third device 130, and the Nth device 190. The presentation data may be transmitted to another device in the same format as the presentation data of the first device 110 without any additional processing, and may be transmitted in a converted format such as an image file or a pdf file.

The same contents are displayed on the screen of the devices constituting the system unless there is a special situation. Specifically, the screens of all the devices are synchronized based on the display of the first device 110 serving as the host device. It is possible to set the display of another device not functioning as a host device to be displayed through a separate setting. For example, if a user of the third device 130 has appropriate data, the reference device synchronized to the user of the first device 110 or the moderator of the conference, for example, ) To the third device 130, as shown in FIG. Described in terms of the device, the reference device change request of the synchronization screen can be transmitted to the host device at the third device 130, and the reference device can be changed by accepting the request at the host device. Conversely, it is also possible to change the reference device by transmitting a change request from the first device 110 to the third device 130, and accepting it from the third device 130. The method is not limited to the above-described method, and various methods may be possible.

As for the displayed screen, the user of the host device can add additional records of various types. For example, you can emphasize specific content with underlining, or insert annotations. You can insert a separate chart or delete specific content. Such various edits are synchronized with other devices constituting the system and displayed on the screen of each device. Hereinafter, this type of additional record will be collectively referred to as annotation data.

Specifically, when the device receives the above-described additional record through a user input interface such as a keypad, a touch pad, a stylus, and an S pen, annotation information including annotation data is generated. And transmits the generated annotation information to another device constituting the system. Each device that has received the annotation information displays annotation data such as underlines, memos, and annotations on the screen of each device based on the annotation information. When the specification of the device is not the same as that of the host device, the annotation data can be synchronized through a predetermined conversion operation such as resizing or color change.

The user of the host device can change the contents displayed on the screen. For example, when the presentation data is composed of a plurality of pages, it can be moved from the current page to the next page, the previous page, or a page corresponding to a specific page number. In the following description, a page can be interpreted as an image. Or enlarge the displayed image, or move the image somewhat in a predetermined direction. The host device that receives such input via the input interface transmits information to another device to cause the corresponding operation to be performed. For example, if the page has been changed, identification information indicating the changed page can be transmitted. These identification information may be referred to as user interaction information. The device that has received the user interaction information displays a corresponding page based on this information.

The system performing the series of processes described in connection with FIG. 1 does not require a server. Internet, Intranet, Wi-Fi, WiBro environment, and the like. If the device can transmit and receive data using a communication network, it can be applied to communication environments such as 3G and 4G.

The present invention is particularly useful in systems configured with smart devices. Smart devices include smart phones, tablets, and smart TVs with various screen resolutions. Also, the host device is a general PC, but the second, third, and Nth devices may be smart devices or notebooks (laptops). The system according to an embodiment of the present invention can be applied to most devices that can use a certain network, and is not limited to the above-described example.

2 is a diagram illustrating a screen for configuring a meeting room according to an embodiment of the present invention. The user can select a New Meeting Room (210) to open a new meeting room. The opened meeting room may have various numbers depending on the setting of the user. The meeting room may be open to all accessible devices, and may be restricted to the public by setting a password or the like. In addition, if the number of available devices is limited and the number of available devices is exceeded, participation of other users may be limited or may not appear on the screen of FIG. When the user newly opens a meeting room, the user's device functions as a host device.

In FIG. 2, the already established meeting rooms such as Math Studies 220, Refresh 230, and Class 214 240 are also shown. The device that opened the meeting room and the devices participating in the meeting room constitute the system according to the embodiment of the present invention described in FIG.

The interface described in Fig. 2 may be provided through the operating system of the device, an application, or the like. In addition, a series of processes for constructing and participating in a meeting room may be omitted in some cases. For example, if the user device is operating in a predetermined mode, it can detect the host device and automatically construct a system for data, annotation data, and interaction synchronization. Such an embodiment may be useful in the case of a conference or the like in an independent space. Also, the user who participated in the meeting room can receive and synchronize all the annotation information from the beginning of the conference even if the user participated in the meeting room after the lapse of a predetermined time without participating from the start of the meeting or lecture.

FIG. 3 illustrates a method of sharing presentation data according to an embodiment of the present invention. Referring to FIG. The presentation data described in this specification is not limited to data of a typical presentation format such as a power point, a keynote, and the like. The presentation data may also include various document files, web pages, and image files. In the case of a lecture based solely on a form without a separate document, the presentation data may be a blank image to which annotation data is applied.

3A shows that the first device 110 transmits the presentation data to the second device 120 without any conversion. FIG. 3B shows that the first device 110 converts the presentation data into a predetermined format and transmits the converted data to the second device 120. FIG. According to the presentation data sharing method shown in FIG. 3A, it is useful when all the devices included in the system are the same model or devices that support shared presentation data. It is also useful when the network environment is sufficient to transmit the capacity of the presentation data. In the case where the presentation data is transmitted without conversion, generally, the presentation data can not be executed in each device before the completion of the data transmission. However, when the presentation data is converted into the image file and transmitted, It is possible to display sequentially transmitted image files. It is advantageous that the part corresponding to the first part of the conference data is transmitted first and the rest part is transmitted while the conference is proceeding.

However, it is not always guaranteed that the devices constituting the system are all the same or different models, and models supporting the presentation data. Since almost all devices support image files, in this case, the first device 110 may convert the presentation data into the format of the image file and transmit it to the second device 120.

There are various methods for converting the presentation data into the format of the image file. Basically, contents corresponding to one page of presentation data can be converted into one image. Or contents included in two pages of the presentation data can be converted into one image. This conversion ratio can be determined in consideration of the resolution of the presentation data and the resolution of the device. For example, if presentation data has a ratio of 1: 1 in width and height, and the device has a ratio of 2: 1 in width and height, then one image is converted to include presentation data corresponding to two pages May be appropriate.

4 shows a method of converting presentation data into an image in the case where the presentation data includes main contents, a script, footnotes or the like. The conference organizer or the speaker presenting a specific topic may provide a script or memo in addition to the contents to be shown to the participants. In this case, the presentation data includes the main content that all participants can view, and the script content that only the user of the host device can view.

A general presentation file 410 such as a PowerPoint includes main content 412, a script 414, and a slide list 416. When the host device converts the presentation file into an image and transmits the image to another device, the host device can convert only the content included in the main content 412 into an image and transmit the image.

Even if the presentation data is the general document file 420, the user can add contents corresponding to the script contents by utilizing footnotes or memo functions. In this case, when the host device converts the presentation file into an image and transmits it to other devices, the host device converts only the content included in the main content 422 into an image and transmits the image, and the contents corresponding to the script content 424 It can be displayed only on the host device.

The presentation data converted into an image can be managed as a page. The page information may be image identification information. For example, when the page information is a value indicating three pages, an image having image identification information of three can be displayed. By displaying an image having the same image identification information as the image displayed on the host device in all devices included in the system, page synchronization can be implemented. This will be described in detail with reference to FIG.

The devices constituting the system may have different resolutions. For example, the first device 110 may have a resolution of 1024x768, the second device 120 may have a resolution of 960x480, and the third device 130 may have a resolution of 800x600. The image obtained by converting the presentation data based on the first device 110 functioning as the host device may not be appropriately displayed in other devices. When each device receives the image generated by the first device 110, it can resize the received image based on the resolution of each device. Alternatively, after receiving the resolution information of the device constituting the system in the first device, and converting the presentation data into an image of a size that can be appropriately displayed in all the devices constituting the system based on the received information, It is also possible to transmit to the device.

5 shows a method for sharing annotation information among the devices constituting the system. The annotation data herein includes all data that can be represented on the display of the device using a user input interface, such as underline, highlight highlight, annotation, figure, chart, post-it, For example, if a user of the first device highlights a particular portion of the presentation using the input interface to the displayed presentation data, the first device 110 generates annotation information based on the user's input. The generated annotation information is transmitted to all the devices constituting the system, such as the second device 120. The second device 120 or the like displays the annotation data based on the received annotation information. This allows you to implement Smart Sync.

The annotation information may be in various forms. For example, when emphasizing a specific portion, image information such as color, thickness, length, and transparency applied to emphasize the portion can be transmitted to another device. In the case of extracting a text of a specific part separately in a post-on format and making a memo, annotation information can be generated by using information and text data necessary for displaying the post-it. When a specific picture or diagram is selected by the first device, information on the corresponding picture or diagram can be generated as annotation information and transmitted to another device. The annotation information may also include other information needed to display the annotation data appropriately on the device. For example, there may be a page, image identification information, specification information including resolution of the device, time when the annotation data is input, information on the input order, and the like. And may include identification information of the device that generated the annotation information.

If the devices constituting the system are of the same model or the user interface for inputting annotation data is compatible through an operating system or an application, the annotation information may be information on the input command. For example, when a predetermined annotation is added to the first device 110, the first device 110 generates information on the annotation as an image and transmits the annotation information to the second device 120 or the like, When the annotation is added to the second device 120, the input information is transmitted to the second device 120. The second device 120 inputs an annotation as same as that performed in the first device based on the received annotation data information.

Unless the devices constituting the system are of the same model, each device may have a difference in resolution. The annotation data such as annotations created on the basis of the first device 110 as the host device may be too large or too small to be displayed on the second device 120 as it is. Therefore, when the host device generates the annotation information based on the collected device information, when the annotation data is displayed in the resolution of the device receiving the annotation information, Information can be generated. Alternatively, when the second device 120 receives the annotation information from the first device, the annotation data can be reconstructed by resize or the like so that the annotation data is appropriately displayed on the second device 120 based on the resolution and the like. Means that the presentation data and annotation data displayed on the first device 110 are displayed on the second device 120 in the identity range.

The annotation information may include information on the time when the annotation data is input. The annotation data can be stored with a temporal history using the recording time information. In addition, annotation data can be sequentially undo or redo. Each annotation data can be managed separately based on the recording time information, and users of each device can selectively display or selectively store smart synced annotation data with the host device.

The displayed annotation data can be adjusted in its display position by user input. In particular, if it is annotation data such as added post-it or chart, which does not emphasize specific text or a specific part, it can adjust the position according to the preference of the display user.

6 shows a method of controlling the synchronization of annotation data or controlling the display of annotation data according to the mode. A menu for setting the annotation data synchronization and / or annotation data display mode change, i.e. the annotation data setting menu 620, may be located on a part of the screen 610 of the device displaying the presentation data. A setting mode of the setting menu 620 may be a recording mode 622, and a setting mode of a view mode 624 may be located at the bottom of the setting menu 620.

The recording mode 622 will be described. When the recording mode 622 indicates a private memo, annotation data input by the user in this state is displayed only on the corresponding device. That is, annotation information is not transmitted to another device. In this case, however, annotation information including recording time point information for re-execution / cancellation of annotation data can be generated. If the recording mode 622 indicates a public writing, the device generates annotation information based on the user input, and the generated annotation information is transmitted to the other device. Each device that has received the annotation information displays the annotation data on the screen of the device based on the received information. In other words, the shared write state is that smart synchronization is active.

The viewing mode 624 is described. When the view mode 624 is in a public view state, all synchronized annotation data is displayed. The annotation data of all the devices input in the state in which the recording mode 622 is the shared writing is displayed. However, if the view mode 624 is in the private view state, only the annotation data input from the input interface of the device is displayed. Annotation data based on annotation information received at another device is not displayed.

Although described in terms of a specific device of the system or all the devices constituting the system, the above description may be applied to each device. For example, the recording mode 622 can be set for each device. A user of a specific device can designate a device to receive annotation information input by the user. Also, in the view mode 624, the user of the specific device can view only the annotation data of the device he / she wants to view. For example, when a meeting is performed using one embodiment of the present invention, only annotation data of designated devices can be selectively displayed by designating only the devices of the presenter and specific important participants. As another example, a lecture can be made using a smart board or the like, by utilizing an embodiment of the present invention. At this time, the host device (professor) can receive the annotation data synchronization request of the specific device from another specific device (student) included in the system. Alternatively, a specific device can be designated and the annotation data of the device can be synchronized. Optionally, all of the annotation data may be synchronized and may be synchronized to receive the request or to remake the device from a specified point in time. When the host device accepts a request or designates a specific device, the annotation data input from the specific device is synchronized to all the devices constituting the system.

Such annotation data can be stored in various ways. All annotation data can be stored separately with recording time information. Or annotation data such as memo, annotation, underline, etc. of each page can be stored as one image. Such an annotation data image can be separately stored with the background image being transparent. Alternatively, the state in which the image converted from the presentation data and the annotation data are combined may be stored as one image. In addition, the presentation data itself may be stored by adding annotation data of the page to each page of the presentation data before conversion to an image. Such images, and thus presentation data, can be stored not only in the storage space of the device but also in a separate storage medium, a server, a file cloud, and the like.

Figure 7 illustrates page synchronization in accordance with an embodiment of the present invention. The presentation data can be converted into an image, and the presentation data converted into an image can be managed as a page. The page information may be image identification information. When the seventh page is displayed on the first device 110 as the host device, the first device 110 transmits image identification information corresponding to the seventh page to each device. Each device synchronizes the page corresponding to the received image identification information.

Page synchronization can be activated / deactivated depending on the settings of the device. For example, even if the pages of the first device 110 are changed to 7 pages in the case where the third device 130 sets page synchronization to OFF (page synchronous mode), the page of the third device does not change, Lt; / RTI > The remaining devices whose page synchronization is set to ON display the same page 7 as the page of the first device 110. [

Describes the process of smart synchronization for annotation data in the state that page synchronization is off (page asynchronous mode). The third device 130 continuously receives the annotation information from the first device 110 even when the third device 130 has released the page synchronization or keeps the smart synchronization. The annotation information may include image information displayed in the background when the annotation data is input, or corresponding page information. The third device 130 synchronizes the annotation data based on the page information. That is, when the first device 110 inserts a specific note on the seventh page, annotation information is generated based on the contents of the note, and is transmitted to all devices included in the system. Similarly, in the second device 120 displaying seven pages, annotation data is displayed suitably for each device from the received annotation information. However, since the third device 130 displays three pages, even if comment data is generated for seven pages, the third device 130 is not displayed on the screen of the third device 130. [ When page synchronization of the third device 130 is activated, that is, when the third device 130 is turned on, the same page as the first device 110 is displayed on the third device 130, and the comment data is displayed in the same manner.

8 illustrates a presentation data sharing system according to another embodiment of the present invention. The system 800 includes a host device 810, a clerk device 820, and an attendee device 830. The host device 810 is also displayed with a script associated with the presentation data. At this time, only the portion corresponding to the presentation data can be converted into an image and transmitted to the participant device 830. When the host device performs an interaction such as a page turn, the same interaction is reflected in real time to all the participant devices 830. Since the script is displayed on the host device 810, the presenter using the host device 810 can proceed to the conference by referring to the script. At this time, if the volume up / down button or the predetermined gesture of the host device 810 or voice recognition is possible, the page can be moved using a specific voice such as "Next ". In the clerk device 820, a comment or memo made through the system 800 may be input. The annotation information generated in the clerk device 820 may be transmitted to other devices constituting the system and shared.

9 is a diagram illustrating a configuration of a host device according to an embodiment of the present invention. The following description of the apparatuses and methods described in Figs. 9 to 12 will not be repeated. 9, a first device 110 according to an embodiment of the present invention includes a data conversion unit 910, an information processing unit 920, a display unit 930, a communication unit 940, and an input interface 950 . The data conversion unit converts the presentation data into an image. The communication unit 940 transmits the converted image to the second device when the image is converted. The data conversion unit 910 may convert the images in the order of the start page to the last page of the presentation data. The communication unit 940 can transmit the order in which the conversion is completed, or the image in which the page of the presentation data takes precedence. The display unit 930 displays a predetermined image among the converted images on a screen or the like. An image corresponding to the first page of the presentation data may be displayed. The predetermined image may be set separately by the user, or may be a presentation image that has been performed last, or an image subsequent to the presentation image. The information processing unit 920 generates identification information of the displayed image, and the communication unit 940 transmits the identification information to the second device 120. The second device 120 displays a corresponding image of the received converted image on the screen of the second device 120 based on the received image identification information.

Input interface 950 receives annotation data for the displayed image from the user. The information processing unit 920 may generate annotation information including information necessary for expressing annotation data in the second device. The display unit 930 displays the annotation data on the image displayed on the screen, and the communication unit 940 transmits the annotation information to the second device 120. [

When the image displayed on the screen of the first device is changed on the display unit 930, the information processing unit 920 newly generates image identification information on the changed image and receives the image identification information to the second device 120. If the newly received image identification information does not correspond to the image being displayed in the second device 120, the second device 120 can switch the display to the image indicated by the newly received image identification information .

10 is a diagram illustrating a configuration of a participant device according to an exemplary embodiment of the present invention. The participant device 120 can basically have the same configuration as the host device 110. [ That is, whether the device is a participant device or a host device does not depend on the role performed by the device but on the configuration of the device.

However, only the predetermined configuration among the configurations described with reference to Fig. 9 can serve as the participant device 120. [ The participant device 120 may include a communication unit 1040, and a display unit 1030. And may further include an input interface 1030. [

The communication unit 1040 receives image, image identification information, and annotation information from the first device. The image may be generated by converting the presentation data at the first device. The image identification information is identification information indicating an image displayed on the screen of the first device, and the annotation information includes information necessary for expressing annotation data on the screen of the second device. The display unit 1030 displays a predetermined image of the received image on the screen based on the image identification information, and displays the annotation data on the displayed image based on the annotation information.

In the case where the input interface unit 1050, the data conversion unit 1010, and the information processing unit 1020 are additionally included, the contents described in the above description, particularly FIGS. 1, 6, 7, and 9, It can be applied and is omitted.

11 is a flow diagram illustrating a method for a host device according to an embodiment of the present invention to transmit presentation data, annotation data, and information needed by a participant device to synchronize displayed pages.

Referring to FIG. 11, the host device converts the presentation data into an image (step 1110), displays a predetermined image among the converted images on the screen, and transmits the image to the second device (step 1120). The identification information for the displayed predetermined image is generated and transmitted to the second device (step 1130). When the user inputs the comment on the displayed image (1140), the comment information is generated and transmitted to the second device 1150)

12 is a flowchart illustrating a method of synchronizing a participant device with a host device based on data received from the host device in accordance with an embodiment of the present invention.

12, in step 1210, the participant device receives image and image identification information from the host device, and displays an image corresponding to the image identification information among the images received in step 1220. [ When the annotation information is received in step 1230, step 1240 displays the annotation data included in the annotation information on the displayed image.

The block diagrams disclosed herein may be construed to those skilled in the art to conceptually represent circuitry for implementing the principles of the present invention. Likewise, any flow chart, flow diagram, state transitions, pseudo code, etc., may be substantially represented in a computer-readable medium to provide a variety of different ways in which a computer or processor, whether explicitly shown or not, It will be appreciated by those skilled in the art. Therefore, the above-described embodiments of the present invention can be realized in a general-purpose digital computer that can be created as a program that can be executed by a computer and operates the program using a computer-readable recording medium. 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 functions of the various elements shown in the figures may be provided through use of dedicated hardware as well as hardware capable of executing the software in association with the appropriate software. When provided by a processor, such functionality may be provided by a single dedicated processor, a single shared processor, or a plurality of individual processors, some of which may be shared. Also, the explicit use of the term " processor "or" control unit "should not be construed to refer exclusively to hardware capable of executing software and includes, without limitation, digital signal processor May implicitly include memory (ROM), random access memory (RAM), and non-volatile storage.

In the claims hereof, the elements depicted as means for performing a particular function encompass any way of performing a particular function, such elements being intended to encompass a combination of circuit elements that perform a particular function, Or any form of software, including firmware, microcode, etc., in combination with circuitry suitable for carrying out the software for the processor.

Reference throughout this specification to " one embodiment " of the principles of the invention and various modifications of such expression in connection with this embodiment means that a particular feature, structure, characteristic or the like is included in at least one embodiment of the principles of the invention it means. Thus, the appearances of the phrase " in one embodiment " and any other variation disclosed throughout this specification are not necessarily all referring to the same embodiment.

In this specification, the expression 'at least one of' in the case of 'at least one of A and B' means that only the selection of the first option (A) or only the selection of the second listed option (B) It is used to encompass the selection of options (A and B). As an additional example, in the case of 'at least one of A, B and C', only the selection of the first enumerated option (A) or only the selection of the second enumerated option (B) Only the selection of the first and second listed options A and B or only the selection of the second and third listed options B and C or the selection of all three options A, B, and C). Even if more items are listed, they can be clearly extended to those skilled in the art.

The present invention has been described with reference to the preferred embodiments.

It is to be understood that all embodiments and conditional statements disclosed herein are intended to assist the reader in understanding the principles and concepts of the present invention to those skilled in the art, It will be understood that the invention may be embodied in various other forms without departing from the spirit or essential characteristics thereof. 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 (15)

display;
A communication unit for communicating with at least one second device;
A memory for storing one or more instructions; And
A processor executing the one or more instructions stored in the memory; Lt; / RTI >
The processor, by executing the one or more instructions,
Transmitting the first data to the at least one second device such that the first data is displayed on the at least one second device connected through the communication unit while displaying the first data on the display,
The information for reflecting the change to the first data to the first data being displayed on the at least one second device via the communication unit as the change for the first data is performed, Device,
Receiving information for reflecting a change to the first data from the at least one second device through the communication unit as a change to the first data being displayed in the at least one second device is performed, And
And changes the first data being displayed on the display in accordance with the received information. 2. The apparatus of claim 1, wherein the processor is further configured to:
Receiving second data displayed on the at least one second device through the communication unit,
Displaying the received second data on the display,
A first device. 2. The apparatus of claim 1, wherein the processor is further configured to:
Converting the first data into an image file,
And transmitting the image file to the at least one second device via the communication unit.
A first device. The first device of claim 1, wherein the change to the first data comprises a change by a second record associated with the first data. 2. The first device of claim 1, wherein the change to the first data comprises a change by inserting an annotation associated with the first data. 2. The method of claim 1, wherein changing the first data comprises changing a page containing the first data to another page not including the first data,
Wherein the information transmitted from the first device to the at least one second device corresponding to changing the page to the different page comprises page identification information. 2. The apparatus of claim 1, wherein the processor executes the one or more instructions,
And displays data other than the first data together on the display while displaying the first data as main content on the display. A method for sharing data between devices,
Transmitting the first data to the at least one second device such that the first data is displayed on at least one second device connected to the first device while displaying first data on the first device;
Information for reflecting a change to the first data to the first data being displayed on the at least one second device as a change to the first data is performed by the first device, To a second device;
Receiving information for reflecting a change to the first data from the second device as a change to the first data being displayed on the at least one second device is performed; And
Changing the first data being displayed on the first device according to the received information,
To-device data sharing method. 9. The method of claim 8,
Receiving second data being displayed on the at least one second device; and
And displaying the received second data on the first device.
How to share information between devices. 9. The method of claim 8, wherein transmitting the first data to the at least one second device comprises converting the first data to an image file and transmitting to the at least one second device. How to share data between. 9. The method of claim 8, wherein the change to the first data being displayed in the first device includes a change in the additional record associated with the data. 9. The method of claim 8, wherein the changing of the first data being displayed on the first device includes a change by inserting an annotation related to the data. 9. The method of claim 8, wherein the changing of the first data being displayed on the first device comprises:
And changing a page containing the first data being displayed to another page that does not include the first data, wherein the step of changing the page from the first device to the at least one Wherein the information transmitted to the two devices comprises page identification information. 9. The method of claim 8, wherein the method further comprises displaying the first data in the first device as main content and displaying data other than the first data together in the first device. How to share data between. A computer-readable recording medium on which a program for implementing a method of sharing data between devices is recorded,
The method of sharing data between devices includes:
Transmitting the first data to the at least one second device such that the first data is displayed on at least one second device connected to the first device while displaying first data on the first device;
Information for reflecting a change to the first data to the first data being displayed on the at least one second device as a change to the first data is performed by the first device, To a second device;
Receiving information for reflecting a change to the first data from the second device as a change to the first data being displayed on the at least one second device is performed; And
Changing the first data being displayed on the first device according to the received information,
≪ / RTI > Recording medium.

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