KR20190080472A - Method of generating content data, content data structure, and collaboration method based on content data - Google Patents

Abstract

A content data generation method can be performed in a content data generation system including an electronic pen, an infrared camera, and a content data generation device. According to the present invention, the content data generation method comprises the steps of: periodically sensing infrared points emitted from the electronic pen and pointing on a first area through the infrared camera; generating a plurality of pieces of coordinate information for the infrared points based on a reference coordinate system preset for the first area; and setting continuous coordinate information provided continuously from among the plurality of pieces of coordinate information as a first event object, and generating first content data corresponding to the first event object by layering basic information, detailed information, and coordinate information of the first event object.

Description

TECHNICAL FIELD [0001] The present invention relates to a content data generation method, a content data structure, and a content data based collaborative method,

The present invention relates to a content data generation technique, and more particularly, to a content data generation method for generating content data based on coordinate values of points input from outside, a method for generating content data, Structure and content data based collaborative methods.

As the science and technology developed, the lessons that were written and written in chalk on the blackboard were transformed into smart lessons by using various electronic equipments. Classes with electronic equipment can easily produce images, videos and other materials needed for classes, and students can find necessary materials through web surfing during class.

In addition, by recording videos with video cameras, students can view classes again at any time. Even if they can not participate in classes, they can watch recorded video clips. With the development of smart phones and PDAs, I can take classes.

Among the various learning materials, the electronic board is similar to the large-sized tablet, which can be used as an electronic pen to enhance the convenience and usefulness of lectures.

On the other hand, the electronic board stores the plan (or written characters, figures, etc.) in the image form or stores only the point coordinates included in the written contents. When the form writing is stored in the form of an image, the capacity of the form writing data is relatively large, and the writing form is not displayed clearly by enlarging or reducing the writing form. If the writing form data includes only the point coordinates, It is difficult to edit a figure.

Korean Registered Patent No. 1,530,476 (Announced 2015.16.19) Electronic board system using infrared sensor Korean Registered Patent No. 1,378,318 (Announcement of Mar. 28, 2014) Electronic board system using infrared camera Korean Registered Patent No. 0,764,312 (October 10, 2007 announcement) Network conference system, attending authentication method and presentation method

An object of the present invention is to provide a content data generation method for generating content data that is easy to edit and manage.

It is an object of the present invention to provide a content data structure that is easy to edit and manage.

An object of the present invention is to provide a method of content-data-based collation.

In order to accomplish the above object, a content data generation method according to embodiments of the present invention may be performed in a content data generation system including an electronic pen, an infrared camera, and a content data generation device. The method of generating content data includes: periodically sensing infrared points pointed out on the first area on the first area through the infrared camera; Generating a plurality of coordinate information for the infrared points based on a predetermined reference coordinate system corresponding to the first area; And setting consecutive coordinate information continuously provided from among the coordinate information as a first event object, layering the basic information, the detailed information, and the coordinate information of the first event object to form a first And generating content data.

According to an embodiment, the step of generating the first content data may include storing the generation time information of the continuous coordinate information and the continuous coordinate information in correspondence with each other in a third level area of the first content data; Storing detailed information of the first event object in a second level area of the first content data; And storing basic information of the first event object in a first level area of the first content data.

According to an embodiment of the present invention, the basic information of the first event object includes at least one of an event type information, an image index information, a playback time information of a media linked to the first event object, Index information can be obtained.

According to an embodiment, the detailed information of the first event object includes at least one of the event index information, starting point coordinate information of the continuous coordinate information, end point coordinate information of the continuous coordinate information, , Event color information, point thickness information, and correction information indicating whether or not a correction has been made to the first event object.

According to an embodiment, the step of generating the coordinate information may include generating change information for a second event object corresponding to the second content data, when the generated second content data is selected .

According to an embodiment, the change information of the second event object may include at least one of event index information, event type information, modification event type information, modification start point coordinate information, modification end point information, area information of the modified second event object, Angle information.

In order to achieve one object of the present invention, a content data generation method according to embodiments of the present invention is a content data generation apparatus that generates content data based on coordinate information on a two-dimensional plane sequentially provided from the outside . The content data generation method may further include setting consecutive coordinate information provided successively among the coordinate information as a first event object, associating generation time information of the continuous coordinate information and the continuous coordinate information, In a third level region of the second level; Storing detailed information of the first event object in a second level area of the first content data; And storing basic information of the first event object in a first level area of the first content data.

According to one embodiment,

In order to achieve an object of the present invention, a content data structure according to embodiments of the present invention may include a plurality of coordinate information corresponding to an event object. Wherein the content data structure comprises: a first level area for storing basic information of the event object; A second level area for storing detailed information of the event object; And a third level area for storing the coordinate information and the generation time information of the coordinate information in association with each other.

In order to accomplish one object of the present invention, a method of collaborating according to embodiments of the present invention is performed in a content data-based collaboration system including a first user terminal and a second user terminal interconnected via a network . The method includes: generating a collaboration server at the first user terminal; Connecting the second user terminal to the collaboration server via a client application; Transmitting content data including at least one of book form data and teaching material data from the first user terminal to the second user terminal when the connection of the second user terminal is normally performed; Periodically transmitting a plurality of point coordinates input to one of the first user terminal and the second user terminal to the other one of the first user terminal and the second user terminal; And sequentially dividing the plurality of point coordinates into a plurality of form data based on a discontinuous section of the plurality of point coordinates.

According to an embodiment, the step of transmitting the content data may include transmitting the content data using a packet structure including a header, content data, a tail, and block size information, Includes a total sum of the header size, the content size, and the tail size, and may have a fixed length.

According to another embodiment of the present invention, the step of transmitting the content data may include providing at least one of a publisher right and a tool usage right to the second user terminal, The method comprising the steps of: transmitting point coordinates input to a user terminal to the first user terminal; and, when the tool use right is granted, The second user terminal can restrict the modification to the author data by the first user terminal.

The method of generating content data according to embodiments of the present invention is a method of generating a content data structure by using a content data structure having a layered structure and storing the format information including not only coordinate information on the writer data but also moving / / Deletion, and the like, optimizing and storing the event information and the time at which the event occurs can facilitate management of the writing data.

The contents data structure according to the embodiments of the present invention can be easily edited and managed by layering and storing basic information, detailed information and coordinate information of the event object.

The collaborating method according to the embodiments of the present invention can prevent at least one of the authoring right and the right to use the tool from being set for each user to prevent modification or deletion of content data by any user, Presentation can be made possible.

1 is a diagram illustrating a collation system in accordance with embodiments of the present invention.
2A is a diagram showing an example of a server included in the collaboration system of FIG.
2B is a diagram illustrating an example of a user terminal included in the collaboration system of FIG.
3 is a block diagram showing an example of a content generation apparatus according to the embodiments of the present invention.
4A and 4B are views showing an example of a screen output from the content generation apparatus of FIG.
FIG. 5A is a diagram showing an example of content data generated by the content generation apparatus of FIG. 3; FIG.
5B is a diagram showing a structure of content data used in the content generating apparatus of FIG.
Figs. 6A to 6F are diagrams illustrating attributes included in the contents data structure of Fig. 5B.
7A and 7B are diagrams for explaining rights setting performed by the content generating apparatus of FIG.
8 is a flowchart showing a content data generation method according to the embodiments of the present invention.
9 is a flowchart showing an example of a content data generating method of FIG.
10 is a flow chart illustrating a method of collation according to embodiments of the present invention.
11A and 11B are diagrams showing an example of a packet used in the method of collation shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

(Or a content data generation system, a content data generation apparatus) according to embodiments of the present invention may include a plurality of points (for example, points pointed sequentially on a screen through an infrared camera, (E.g., a character object) on the basis of the points (the points sequentially sensed / inputted through the input device), layering the basic information, the detailed information and the coordinate information of the event object, Lt; / RTI > In addition, the collaboration system includes a host terminal (or server) and a client terminal (or a user terminal) interconnected via a network, and the points (or points corresponding to points) Content data) can be provided in real time in a manner that propagates or provides the presentation.

Hereinafter, a configuration for generating content data, a structure for generating generated content data, and a configuration for performing collation will be sequentially described.

Figure 1 is a diagram of a collation system according to embodiments of the present invention, Figure 2a is an illustration of a server included in the collation system of Figure 1, Figure 2b is a cross- FIG. 4 is a diagram illustrating an example of a user terminal included in the system of FIG.

1 and 2A, a collaborative system 100 (or a content data generation system) includes a server 110 (or a content data generation device, a host terminal), a display device 120, a sensing device 130 and user terminals 140-1 through 140-7 (or client terminals). On the other hand, the collation system 100 may include an electronic pen 10 and a screen 20.

The collation system 100 may include infrared points that are emitted from the electronic pen 10 (e.g., a pen that emits invisible infrared radiation) and pointed onto the screen 20 (or display area, first area) Periodically senses through the sensing device 130 (e.g., an infrared camera), generates a plurality of coordinate information for the infrared points based on a predetermined reference coordinate system corresponding to the screen 20, And the content data corresponding to the event object can be generated by layering the basic information, the detailed information, and the coordinate information (or the coordinate information of the points) of the event object have.

Here, the continuous coordinate information may be coordinate information generated / detected / inputted in a temporally successive manner corresponding to the sensing period (for example, 10 ms) of the collation system 100 (or the sensing device 130) have. The basic information of the event object includes an event type (or a type) of the event object, information (e.g., progress time of video / audio data) of related data when an event occurs, Start point coordinates, end point coordinates, size (e.g., height, width), and the like. The layering of the basic information, the detailed information and the coordinate information may correspond to mutually associating the basic information, the detailed information and the coordinate information independently of each other, for example, the contents data generating system 100 Basic information, detailed information and coordinate information can be stored in a tree structure.

The structure of the content data and the configuration for generating the content data will be described later with reference to Figs. 3 to 7B.

The server 110 generates presentation image data and provides the presentation image data to the display device 120. The server 110 acquires information of points from the image acquired from the sensing device 130 (e.g., coordinates of points constituting a written character, Information, coordinate values), and generate content data based on the information of the points. Here, the presentation image data is general image data used for presentation, and includes presentation data (for example, data used and provided basically in the progress of the presentation, teaching material data) and content data For example, written data). The server 110 is implemented as a general computing device, and may be implemented, for example, as a personal computer, a laptop computer, a notebook, a smart pad, or a smartphone.

The display device 120 can generate a presentation image based on the presentation image data and display the presentation image on the screen 20. [ For example, the display device 120 may be embodied as a beam projector or a general display device (e.g., an LCD display device, an OLED display device) including a display panel corresponding to the screen 20. [

The sensing device 130 may detect an infrared ray image by sensing infrared ray points (for example, a point at which non-visible infrared ray is pointed) that are emitted from the electronic pen 10 and pointed to the screen 20. Also, the sensing device 130 may generate information (e.g., coordinate values) of infrared points from the infrared image. Here, the information of the infrared points may include coordinate values on the coordinate system set on the basis of the screen 20 and sensed time information.

When the display device 110 is implemented as a beam projector, the sensing device 130 may be implemented as an infrared camera. Alternatively, when the display device 110 is implemented as a display device, And can be implemented by a touch screen integrally formed.

1 and 2B, at least one of the server 110 and the user terminals 140-1 to 140-7 (hereinafter referred to as a first user terminal 140-1) is implemented as a smart pad And may include a processing module 210, a display module 220, and a touch screen 230.

The processing module 210 and the display module 130 are substantially the same as the server 110 and the display device 120 described with reference to FIG. 2A, and therefore, redundant description will not be repeated.

The touch screen 823 can sense points sequentially input through the electronic pen 10 using an electrostatic touch input technique, a pressure sensitive touch input technique, or the like, as in a general touch screen.

As described with reference to Figs. 1 and 2B, the collation system 100 (or the server 110, the user terminals 140-1 through 140-7) The continuous coordinate points may be set as one event object and the basic information, the detailed information and the coordinate information of the event object may be layered to generate content data. Since the content data is stored in a layered manner, the management and editing of the content data can be facilitated.

FIG. 3 is a block diagram showing an example of a content generation apparatus according to an embodiment of the present invention, FIGS. 4A and 4B are views showing an example of a screen output from the content generation apparatus of FIG. 3, FIG. 5B is a diagram showing the structure of content data used in the content generation apparatus of FIG. 3, and FIGS. 6A to 6F are diagrams showing the structure of content FIG. 7A and FIG. 7B are explanatory diagrams of rights set in the content generation apparatus of FIG. 3. FIG.

3, the content generation apparatus 300 (or the server 110) includes a communication unit 310, a coordinate information acquisition unit 320, an operation unit 340, a storage unit 350, a user management unit 360 And a control unit 950. [0086] Here, the content generation apparatus 300 may be at least one of the server 110 and the user terminals 140-1 to 140-7 described with reference to FIGS. 1 to 2B.

The communication unit 310 performs data communication with the display device 120, the sensing device 130, and the like, and can transmit presentation image data or receive infrared image data, for example. In addition, the communication unit 310 can perform data communication with another terminal (e.g., a user terminal). The communication unit 310 may be implemented as a general wired / wireless communication module.

The coordinate information obtaining unit 320 may calculate information (for example, coordinate values) of infrared points included in the infrared image data received from the sensing device 130. [ The configuration for calculating the coordinate information of the infrared rays included in the infrared image data is substantially the same as the configuration for calculating the coordinates of the laser pointing point of the virtual experience system using a general invisible laser. And therefore description thereof will be omitted.

3, the coordinate information obtaining unit 320 is included in the content generating apparatus 300, but the coordinate information obtaining unit 320 is not limited thereto. For example, the coordinate information obtaining unit 320 may be included in the sensing device 130.

The interface providing unit 330 may provide a user interface for generating content data.

Referring to FIGS. 4A and 4B, the user interface may provide a menu (PAL) and a writer area (or a writer input window in which a writer is permitted). The menu PAL may be placed at a specific position (e.g., top of the screen, bottom right of the screen, etc.) with a specific shape (e.g., a square, a circle), as shown in Figs. 4A and 4B.

The menu PAL may include the first to seventh icons M1 to M7. For example, the user selects the type of the virtual pen (e.g., pen, brush, etc.) through the first icon M1, selects the type of the figure to be input through the second icon M2, (For example, color, thickness, and the like) of the virtual pen through the third icon M3 and the eraser via the fourth icon M4. The user also switches the screen (or note) through the fifth icon M5, selects an event object (e.g., a specific character) via the sixth icon M6, An event object, a specific area, and the like can be enlarged or reduced through the UI.

On the other hand, the user can input points (or characters, figures, etc. composed of points) through the writing area. In this case, The content data can be generated in units of points (for example, one character).

Referring again to FIG. 3, the operation unit 340 sets consecutive coordinate points (or continuous coordinate information) continuously provided from among the points calculated by the coordinate information obtaining unit 320 as one event object, The content data can be generated by layering basic information, detailed information and coordinate information of the object.

In the embodiments, the operation unit 340 stores the generation time information (or the detected time information) of the continuous coordinate information and the continuous coordinate information in association with each other in the third level area of the contents data, Stores the basic information of the event object in the first level area of the contents data, and stores the basic information of the event object in the first to third level areas based on the identifier (or event index) of the event object The stored information can be correlated. For example, the operation unit 340 may store the content data as an XML file.

5A to 6F, the content data includes an event master (EM) (or basic information), an event detail (ED) (Or change information), a free point (FP) (or point information), and the like), an erase point (EP) ) And a note (or note information).

Here, the event master EM may have an event identifier (EventId) and basic information of the event object. The event detail (ED) is associated with the event identifier (EventId), and can have detailed information of the event object. The erase point EP is connected to the event identifier EventId on the condition that the event detail ED is deleted, and is used as an eraser (for example, a free eraser used to erase at least a part of the event object, The fourth icon M4 shown in Fig. 4A). The modifier event ME is associated with the event identifier EventId on the condition that the event detail ED is modified so that the modification information for the event object (for example, modification, enlargement / Reduction, etc.) (or change event information). The free point FP may be associated with an event identifier (EventId) and may have coordinate information for the pen writer (or points). A note may have a file name and information of a drawing (or presentation data).

On the other hand, as shown in the second table TABLE2, the event master EM includes event type information KD indicating an event type, image index information SD indicating an image index (or image identifier) Event index information EI indicating an event index (or an event identifier), enlargement ratio information SC indicating an enlargement ratio used for enlarging / reducing a note, Vertical scroll position information VS indicating the vertical scroll position of the note, horizontal scroll position information HS indicating the horizontal scroll position of the note, and multi-input index information TI for multi-input. The information (KD to TI) may have an integer or real value.

The event detail ED includes event index information EI, starting point coordinate information SX and SY of the event object, end point coordinate information EX and EY of the event object, (BX, BY, BW, BH), event object color information (PC), and event information (OX, OY, OW, OH) (Thickness) information of the object, event deletion information (BD) indicating the deletion of the event object, transparency information (TP) indicating transparency of the event object, presence or absence of modification to the event object And may include correction occurrence information (MD). In addition, the event detail (ED) may include tablet input information indicating the presence or absence of a tablet input as an input method of points. The information (EI to BT) included in the event detail (ED) may have an integer type value. Meanwhile, the event master (EM) and the event detail (ED) can be associated through the event index information (EI).

The erasure point EP includes event index information EI, event generation time information MP indicating the generation time of the event object, and deletion event type information EK as shown in the fourth table TABLE4 can do. The information (EI to EK) included in the erase point EP may have an integer or real value.

The free point FP is constituted by the event index information EI, the event generation time information MP and a mouse (i.e., a mouse as one type of input device) as shown in the fifth table TABLE5 An event identification value MS, a pressure value PS of the tablet pen (i.e., a tablet pen as one type of input device), and starting point information SX, SY of the event object. The information EI to SY included in the free point FP may have a value of integer or real type.

The modifier event ME includes event index information EI, media playback time information MP, event type information KD, modified event type information MK, and the like, as shown in the sixth table TABLE6, The end point information (CX, CY) of the moved / changed event object, the area information (BX, BY, BW, BH) of the moved / changed event object, the image index information (SD) and rotation angle information (AG) of the event object. The information (EI to AG) included in the modulation event (ME) may have a value in the form of integer or real number.

The operation unit 340 (or the contents generation apparatus 300) stores the form data (i.e., the contents data corresponding to the characters, graphics, etc. constituted by the points) in the form of the structure shown in FIGS. 5A to 6F, The event information and the time when the event occurs are optimized and stored in addition to the coordinate information for moving, enlarging / reducing / rotating / deleting.

The content data shown in FIG. 5A represents the form data (for example, form data in the form of an XML file) for the numbers 1 to 10 written for about 10 seconds, and the storage capacity is reduced (For example, 251 KB in the conventional case -> 25 KB in the case of the present invention).

In one embodiment, when two or more event objects generated within a specific time period overlap each other, the operation unit 340 may integrate two or more event objects into one event object.

Referring to FIG. 4B, for example, in the case of the number "4", the first event object OBJ1 of the "b" type and the second event object OBJ2 of the "1" type may be separately stored. In this case, the operation unit 340 generates the first event object OBJ1 and the second event object OBJ2 based on the event area information OX, OY, OW, and OH of the first event object OBJ1 and the second event object OBJ2, (MP) of the event master (EM) of each of the first event object (OBJ1) and the second event object (OBJ2) when the event object (OBJ2) overlaps at least partially, The first event object OBJ1 and the second event object OBJ2 are generated based on the first event object OBJ1 and the second event object OBJ2 when they are generated within a specific time interval, OBJ2 may be integrated to generate the third event object OBJ3 or to modify the first event object OBJ1.

For example, since the event event objects included in the character "C " can also be judged to overlap each other based on the area information, the character" C "can be stored and managed as one event object. Similarly, the character "" can also be stored and managed as a single event object.

In one embodiment, the operation unit 340 can select an event object based on the event area information (OX, OY, OW, OH).

Referring to Fig. 4B, for example, when the user sets the selection area circularly to select the letter "d ", part of the letter" d "is not included or part of the letter" e " Accordingly, the operation unit 340 includes whether or not the event area coordinate value OX, OY (for example, the center point of the event area) among the event area information OX, OY, OW, , And the event area coordinate value (OX, OY). Therefore, only "d" matching the user's intent can be selected.

3, the storage unit 350 stores presentation data (e.g., teaching data), content data (e.g., writing data) and the like, and generates and correlates content data Programs, and the like required for the present invention). For example, the content data generation method performed in the operation unit 340 may be implemented as a content generation program and stored in the storage unit 350. [ The storage unit 350 may be implemented as a memory device or the like. The content creation program and the like can be stored in a recording medium (for example, a memory device, a CD, or the like) readable by a computer and distributed via a wired / wireless communication network.

The user management unit 360 can authenticate the user based on the user information about the user participating in the collation (or presentation), and set the collation authority to the user. Here, the collaboration right may include authoring rights and tool usage rights. Meanwhile, the user information may be stored in the storage unit 350.

In embodiments, the user management unit 360 may be configured to determine whether the first user terminal 140-1 (or the first user using the first user terminal 140-1) May be provided.

For example, when the first user terminal 140-1 is given the author authority, the point coordinates (or writing data) input from the first user terminal 140-1 are transmitted to the server 110 , And the server 110 (or the first user terminal 140-1) is transmitted / distributed to other user terminals (e.g., the second user terminal 140-2) via the server 110 The content data can be generated based on the point coordinates.

For example, when the first user terminal 140-1 is given a right to use a tool, the first user terminal 140-1 transmits the presentation data (or the presentation data) using the menu PAL described with reference to FIG. Content data) can be edited.

On the other hand, the interface provider 330 may provide a user interface for displaying and setting the right of collaboration of the user terminals 140-1 to 140-7.

7A and 7B, the interface providing unit 330 provides an authority setting window AR1 on one side (e.g., the right side) of the screen, and the authority setting window A1 is provided with a server, (Or a server user, an administrator) can set or release (or retrieve) an authority for the user by using an input method such as a click, . The rights setting window AR1 may be displayed in the form of a show / hide via the first icon IC1.

In addition, the interface providing unit 330 determines whether the user is authorized to use the pamphlet authority and the tool, through the second and third icons (IC2, IC3) of the menu (PAL) Respectively.

3, the control unit 370 controls data flow between the communication unit 310, the coordinate information obtaining unit 320, the operation unit 340, the storage unit 350, and the user management unit 360, Can be controlled.

As described with reference to Figs. 3 to 7B, the content generation apparatus 300 (or the collation system 100) can generate the form data (i.e., the content data corresponding to characters, And optimizes and stores event information, event occurrence time, and the like, as well as coordinate information on the writing data, movement / enlargement / reduction / rotation / deletion, etc., thereby facilitating management of writing data.

In addition, the content generation apparatus 300 (or the collaboration system 100) may set at least one of the authoring right and the right to use the tool for each user, thereby preventing modification or deletion of the content data by any user , It is possible to make a presentation as desired.

FIG. 8 is a flowchart showing a content data generating method according to the embodiments of the present invention, and FIG. 9 is a flowchart showing an example of a content data generating method of FIG.

8, the content data generation method of FIG. 8 is the same as the content generation apparatus 100 of FIG. 1 or the content generation apparatus 300 (or the server 110, the user terminals 140-1 to 140- 140-7).

The method of FIG. 8 may sense the laser point pointed on the screen 20 through the infrared camera 130 (S820) when the laser is emitted on the screen 20 in the electronic pen 10 (S810) . For example, the method of FIG. 8 may periodically sense infrared points pointed out on the screen 20 (or the first area), which are emitted from the electronic pen 10, through the infrared camera 130. FIG.

The method of FIG. 8 may generate the point coordinates of the laser point (S830). For example, the method of FIG. 8 may generate coordinate information for the infrared points based on a predetermined reference coordinate system corresponding to the screen 20.

Then, the method of FIG. 8 confirms whether or not the infrared point selects the generated content data (or writing data, for example, second content data) (S840), and when the previously generated content data is selected (E.g., first content data) corresponding to the event object based on the continuous coordinate information (S850), and when selecting the pre-generated content data, based on the coordinate information, To modify the event object or the content data (S860).

In one embodiment, the method of FIG. 8 sets consecutive coordinate information provided in succession among the coordinate information to one event object (e.g., the first event object), and sets basic information, And the content data corresponding to the event object can be generated by layering the information.

Referring to FIG. 9, the method of FIG. 8 (or the method of FIG. 8) records information (for example, point coordinates) of points received sequentially in real time (S910), and determines whether or not the point is an end point (S920). For example, if the next point is not received within a certain time based on a specific point, the method of FIG. 8 can determine the specific point as an end point.

When the corresponding point is the end point, the method of FIG. 8 sets the recorded points (or continuous coordinate points) from a specific point (for example, starting point) to the end point as one event object, (S930). For example, the method of FIG. 8 may include generating point-in-time information (or reproducing point-in-time information MP and coordinate information (e.g., starting point coordinate information SX, SY) Information) can be stored in the third level area of the content data in association with each other.

The method of FIG. 8 may generate and store detailed information of the event object (S940). For example, the method of FIG. 8 may generate information contained in an event detail (ED) of an event object based on continuous coordinate information, and store the information in a second level area of the content data.

Then, the method of FIG. 8 may generate and store the event master EM as basic information of the event object (S950). For example, the method of FIG. 8 may store basic information of an event object in a first level area of content data.

As described with reference to FIGS. 8 and 9, in the content data generation method according to the embodiments of the present invention, consecutive continuous coordinate points are generated as one event object among sequentially detected points, Basic information, detailed information and coordinate information can be layered and stored.

10 is a flow chart illustrating a method of collation according to embodiments of the present invention.

Referring to FIG. 10, the method of FIG. 10 may be performed in the collation system 100 of FIG. The host terminal 1010 and the client terminal 1020 shown in FIG. 10 are connected to the server 110 and the first user terminal (or the user terminals 140-1 to 140-7) described with reference to FIG. 1 to FIG. At least one of < / RTI > Therefore, redundant description is not repeated.

The method of FIG. 10 can generate content data based on coordinate information on a two-dimensional plane sequentially provided from the outside.

10, a method of generating a server (e.g., a presentation server for subjectively generating / processing / storing presentation data) in the host terminal 1010 (S1010) The connection can be attempted or permitted (S1020). Here, the client connection can be provided through a separate client application.

For example, a first user hosting a presentation may create a server using a server creation function provided in an application, and a second user attending a presentation may attempt to access the client using a connection function provided in the application have. For example, the second user may attempt to access the client via the IP and PW, the IP corresponds to the address of the server, the password PW is not allowed, Lt; RTI ID = 0.0 > and / or < / RTI >

The password PW is transmitted to the server corresponding to the IP input through the client terminal 1020 (S1025), and the method of FIG. 10 determines whether or not the password PW matches the predetermined password S1030) and allow the user to connect to the server.

When the client terminal 1020 is normally connected to the server, the method of FIG. 10 may set the client level (S 1040). Here, the client level represents the level of authority of the user in the presentation, and the authoring right and the right to use the tool described above with reference to FIG. 3, FIG. 7A and FIG. 7B may be granted according to the authority level. That is, the client level is a system for setting restrictions on some functions related to collation (or presentation) among the functions provided by the collation system 100, such as a writing authority, a tool usage right, Lt; / RTI >

For example, the level zero (Lv0) may correspond to a case in which the user is not authorized to participate in the collaboration function, i.e., the collaboration (or presentation). The first level Lv1 corresponds to the case where there is no author authority, for example, the user of the first level Lv1 can only view the presentation. The second level Lv2 corresponds to a case in which a writing authority is granted. For example, a writing entered by a user at the first level Lv1 may be directly or indirectly distributed to the server and other client terminals. For example, the third level Lv3 corresponds to a case where the server is given only to the host terminal 1010, and the third level Lv3 has the authority to have the writer authority have.

On the other hand, the second level Lv2 is given through the host terminal 1010 having the third level Lv3, and is given to only one client terminal of the plurality of client terminals, Lt; / RTI > In this case, only the host terminal 1010 and one client terminal have a writer right, and the writer generated from each of the bidirectional writer, the host terminal 1010, and one client terminal can be simultaneously distributed in real time. For example, one client terminal may use a drawing attribute different from the drawing attribute (pen, brush pen, graphic) set in the host terminal 1010, and may also have independent attributes such as thickness, color, and the like.

On the other hand, the right to use a tool can be owned by the host terminal 1010 or one client terminal (i.e., the client terminal of the second level Lv2). For example, the right to use a tool can be handed over to the client terminal of the second level Lv2 of the host terminal 1010 or can be brought back to the host terminal 1010 or the client of the second level Lv2, The terminal can modify (e.g., delete, move, rotate, enlarge, or reduce) the event object and switch notes (e.g., switch to a screen that is the background of the presentation).

10, the method of FIG. 10 may provide the client terminal 1020 with presentation data (e.g., at least one of teaching data and drafting data), with the connection approval of the client terminal 1020 (S1050).

The method of FIG. 10 may display the presentation data (for example, the teaching data and the writing data) through the client terminal 1020 (S1060).

10, if there is data (for example, point coordinate information) generated / provided by the host 1010 or another client terminal having the author authority, the method may periodically transmit the data to the client terminal 1020 Or in real time (S1070), and display the corresponding data in real time through the client terminal 1020 (S1080).

In the meantime, the method of FIG. 10 divides data into a plurality of event objects based on a discontinuous section of data (for example, point coordinate information) provided to the host terminal 1010, Content data (or writing data) can be sequentially generated and stored. Here, the discontinuous section is a concept opposite to the continuation described with reference to Fig. 1, for example, when the coordinate information is not acquired beyond the sensing period (10 ms) of the collation system 100 ). That is, the method of FIG. 10 can sequentially generate the content data by setting the continuous points among the points as one event object. The method of generating content data is substantially the same as that of the method of FIG. 8 and the method of FIG. 9, and thus redundant description will not be repeated.

11A and 11B are diagrams showing an example of a packet used in the method of collation shown in FIG.

Referring to FIGS. 11A and 11B, the method of FIG. 10 may transmit content data or the like using the packet (or packet structure) shown in FIGS. 11A and 11B.

A packet may include a header, content data, a tail, and block size information. The block size information includes a total size of a header size, a content size, and a tail size, and may have a fixed length. The header is composed of characters representing the type (or type) of the protocol, and the tail may be composed of characters indicating the end of the protocol.

Referring to FIG. 11B, for example, the header may include a DOC_ST indicating the character transmission, a DOC_EN indicating the end of the character transmission, and the like. The type of the protocol included in the header is described in FIG. 11B, so a detailed description thereof will be omitted.

The present invention can be applied to a handwriting recognition apparatus, a collation system, and the like.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that the invention may be varied and changed without departing from the scope of the invention.

100: Collaboration system
110: Server
120: display device
130: sensing device
140-1 to 140-7:
210: Processing module
220: Display module
230: Touch screen
300: Content generating device
310:
320: coordinate information obtaining unit
330: interface provisioning
340:
350:
360: User Management Section
370:
1010:
1020:

Claims (11)

In a content data generation method performed in a content data generation system including an electronic pen, an infrared camera, and a content data generation device,
Sensing the infrared points emitted from the electronic pen and pointed to the first area through the infrared camera periodically;
Generating a plurality of coordinate information for the infrared points based on a predetermined reference coordinate system corresponding to the first area; And
Wherein the control unit sets consecutive coordinate information provided successively among the coordinate information as a first event object and layers the basic information, the detailed information, and the coordinate information of the first event object to generate a first content corresponding to the first event object And generating the data.
2. The method of claim 1, wherein generating the first content data comprises:
Storing generation time information of the continuous coordinate information and the continuous coordinate information in correspondence with each other in a third level region of the first contents data;
Storing detailed information of the first event object in a second level area of the first content data; And
And storing basic information of the first event object in a first level area of the first content data.
3. The method of claim 2, wherein the basic information of the first event object comprises:
An event index information for the detailed information of the first event object, and an event index information for the second event object.
4. The method of claim 3, wherein the detailed information of the first event object further comprises:
The endpoint coordinate information of the continuous coordinate information, the area information of the first event object, the event color information, the point thickness information, and the modification to the first event object, And correction information indicating whether the content data has been generated or not.
2. The method of claim 1, wherein generating the coordinate information comprises:
And generating change information for a second event object corresponding to the second content data when the generated second content data is selected.
6. The method of claim 5, wherein the change information of the second event object comprises:
The event index information, the event type information, the modification event type information, the modification start point coordinate information, the modification end point information, the area information of the modified second event object, and the rotation angle information.
A content data generating method performed in a content data generating apparatus for generating content data based on coordinate information on a two-dimensional plane sequentially provided from the outside,
Wherein the continuous coordinate information is provided as a first event object and the generation time information and the continuous coordinate information of the continuous coordinate information are stored in a third level area of the first content data, ;
Storing detailed information of the first event object in a second level area of the first content data; And
And storing basic information of the first event object in a first level area of the first content data.
In a content data structure including a plurality of coordinate information corresponding to an event object,
A first level area for storing basic information of the event object;
A second level area for storing detailed information of the event object; And
And a third level area for storing the coordinate information and the generation time information of the coordinate information in association with each other.
A method of collaborating performed on a content data-based collaborative system comprising a first user terminal and a second user terminal interconnected via a network,
Generating a collaboration server at the first user terminal;
Connecting the second user terminal to the collaboration server via a client application;
Transmitting content data including at least one of book form data and teaching material data from the first user terminal to the second user terminal when the connection of the second user terminal is normally performed;
Periodically transmitting a plurality of point coordinates input to one of the first user terminal and the second user terminal to the other one of the first user terminal and the second user terminal; And
And storing the plurality of point coordinates in a sequential manner by dividing the plurality of point coordinates into a plurality of writing data based on a discontinuous section of the plurality of point coordinates.
10. The method of claim 9, wherein the step of transmitting the content data comprises:
Transmitting the content data using a packet structure including a header, content data, a tail, and block size information,
Wherein the block size information includes a sum of a size of the header, a size of the content, and a size of the tail, and has a fixed length.
10. The method of claim 9, wherein the step of transmitting the content data comprises:
And granting at least one of a publisher right and a tool usage right to the second user terminal,
And transmits the point coordinates input to the second user terminal to the first user terminal when the writing authority is granted,
The method of claim 1, further comprising: allowing, when the tool usage right is granted, modification to at least one of the author data based on the point coordinates input by the second user terminal, Wherein the modification is limited to a predetermined range.

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