KR102173111B1 - Method and apparatus for providing contents through network, and method and apparatus for receiving contents through network - Google Patents

Abstract

Disclosed is a content providing method and apparatus for enabling tracking of original data of content provided through a network and providing changed content according to the performance of a receiving device. According to the present invention, by adding the location information of the original content to the metadata of the content provided through the network, the convenience of accessing the original content is increased, and the properties of the provided content are changed to suit the performance of the receiving device. To do.

Description

A method and apparatus for providing contents through a network, and a method for receiving contents through a network, and a method and apparatus for receiving contents through a network.

The present invention relates to a content providing method and device and a content receiving method and device through a network, and more specifically, a content providing method and device for using the original data of the content provided through a network, and a method and device for receiving the same It is about.

In general, content refers to various types of information such as characters, codes, voices, images, and videos used through wired and wireless networks, or contents thereof. As information and communication fields such as the Internet, digital cameras, and mobile phones are developed, non-professionals produce more meaningful information faster than existing media, while sharing their content with other users through a network. The shape is increasing.

Contents may be shared among users connected to the network through various methods such as a bulletin board-type web page, a blog, and a webzine. In general, content provided through the web is transcoded or resized in a form suitable for a web page and provided to other users through a network. For example, when a user provides a picture he or she took through a blog, the edited picture with reduced size and size of the original picture is provided through the blog.

As described above, according to the prior art, the original content may differ from the content provided through the network, and a user who wants to use the original content cannot easily use the original content.

In addition, recently, various content receiving devices such as PDAs, smart phones, portable multimedia players (PMPs), and netbooks exist. Since these content receiving devices have differences in performance such as resolution and available codecs, it is necessary to consider the performance of each device when providing content to various content receiving devices.

The technical problem to be solved by the present invention is to provide a method and apparatus for providing content through a network, and a method and apparatus for receiving the same, which improves accessibility to the original content by providing location information of the original content for the content.

In addition, a technical problem to be solved by the present invention is to provide a method and an apparatus for changing content and providing the changed content suitable for device performance of a content receiving apparatus.

A method for providing content through a network according to an embodiment of the present invention includes storing original content in a predetermined storage device; Generating changed content by changing an attribute of the original content; Generating metadata including location information of the storage device in which the original content is stored; And providing the changed content and metadata to a device connected through the network.

A method of receiving content through a network according to an embodiment of the present invention includes the steps of receiving predetermined content; Extracting location information of the original content from the metadata of the content; And receiving the original content from a predetermined storage device connected through the network by using the location information of the extracted original content.

According to an embodiment of the present invention, an apparatus for providing content through a network includes: an original content changing unit for generating changed content by changing an attribute of the original content; A metadata generating unit generating metadata including location information of a predetermined storage device in which the original content is stored; And a content providing unit providing the changed content and metadata to a device connected through the network.

An apparatus for receiving content through a network according to an embodiment of the present invention includes: a content receiving unit receiving predetermined content; And an additional information extracting unit for extracting location information of the original content from the metadata of the content, wherein the content receiving unit connects the original content to the original content through the network by using the location information of the extracted original content. It characterized in that it is received from.

According to another embodiment of the present invention, a method of providing content through a network includes: obtaining state information of a device to which the content is to be transmitted; Changing an attribute of the content provided to the device by using the device status information; And providing the changed content to the device.

According to another embodiment of the present invention, an apparatus for providing content through a network includes: a content storage unit for storing predetermined content; A communication unit receiving status information of a device to which the content is to be transmitted; A device information storage unit that stores state information of the received device; And a content change unit that changes an attribute of the content provided to the device by using the device status information.

According to another embodiment of the present invention, a method for receiving content through a network includes: selecting a content to be received from among content provided from a predetermined content providing device; Transmitting status information of a device receiving the content to the content providing apparatus; And receiving content whose properties have been changed according to state information of the device.

According to another embodiment of the present invention, an apparatus for receiving contents through a network includes: a user interface for selecting contents to be received from among contents provided from a predetermined contents providing apparatus; And a communication unit that transmits state information of a device receiving the content to the content providing apparatus, and receives content whose attributes are changed according to the state information of the device.

According to the present invention, it is possible to increase the convenience of access to the original content by using the metadata of the content. Further, according to the present invention, content compatibility can be improved by providing content suitable for the performance of a content receiving device.

1 is a reference diagram schematically showing a content sharing system through a network according to an embodiment of the present invention.
2 is a block diagram showing an embodiment of the content providing apparatus of FIG. 1.
3 is a reference diagram for explaining a first process of changing an attribute of an original content in the original content changing unit 211 of FIG. 2.
4 is a reference diagram showing meta data according to an embodiment of the present invention.
5 is a block diagram showing the configuration of a content receiving apparatus according to an embodiment of the present invention.
6A and 6B are reference diagrams for explaining a process of receiving original content according to an embodiment of the present invention.
7 is a flow chart showing a method for providing content according to an embodiment of the present invention.
8 is a flow chart showing a method for receiving content according to an embodiment of the present invention.
9 is a flowchart illustrating a process of providing original content in a content sharing system according to an embodiment of the present invention.
10 is a block diagram illustrating a content sharing system through a network according to another embodiment of the present invention.
11 is a diagram illustrating an example of device state information of a content receiving apparatus.
12A to 12D are reference diagrams for explaining a process of receiving content according to device state information of a content receiving apparatus according to an embodiment of the present invention.
13 is a flow chart showing a method for providing content according to another embodiment of the present invention.
14 is a flow chart showing a method for receiving content according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a reference diagram schematically showing a content sharing system through a network according to an embodiment of the present invention.

Referring to FIG. 1, a content sharing system 100 according to an embodiment of the present invention includes a content providing device 110, a storage device 120, and a content receiving device 130 interconnected through a predetermined network 140. Includes.

The content providing device 110 and the content receiving device 130 include portable multimedia players (PMP), ultra mobile personal computers (UMPC), laptops, mobile phones, digital cameras, and PCs that support various networks 140 in wired and wireless types. It can be a variety of devices. In addition, the content providing device 110, the storage device 120, and the content receiving device 130 constitute a home-network system connected to a control device such as a home gateway or a home server. It may be one of the client devices. For example, the content providing device 110, the storage device 120, and the content receiving device 130 are provided through a network 140 according to the Digital Living Network Alliance (DLNA), which is a standard for controlling electronic devices in the home. These devices may be interconnected to share content.

In addition, the network 140 includes both a short-range network and a long-distance network, and wireless Internet methods such as Bluetooth, Wi-Fi, WiBro, and Ultra Wide Band (UWB), and IEEE It includes wired Internet methods such as 1394 and Ethernet.

The storage device 120 is a network storage device in which original content is stored, and is a storage device accessible through a network, such as a network attached storage (NAS). In FIG. 1, the storage device 120 in which the original content is stored is illustrated as a device separate from the content providing device 110, but the storage device 120 may be included as a component of the content providing device 110.

The content providing device 110 generates changed content by changing the properties of the original content stored in the storage device 120, and generates location information of the storage device 120 as metadata.

The content receiving device 130 extracts the location information of the storage device 120 in which the original content is stored from the changed content and metadata information provided through the content providing device 110 and accesses the storage device 120 as necessary. Receive original content.

2 is a block diagram showing an embodiment of the content providing apparatus of FIG. 1.

Referring to FIG. 2, a content providing device 210 according to an embodiment of the present invention includes an original content changing unit 211, a meta data generating unit 212, and a content providing unit 213.

As shown in FIG. 1, the original content change unit 211 generates changed content by changing the properties of the original content stored in a predetermined storage device 120 connected through a network.

For example, when content is uploaded and shared through a web page such as a blog, the capacity of an attached file supported by the web page is limited or it takes a long time to upload. Accordingly, the original content change unit 211 plays a role of reducing the capacity of the original content in order to efficiently provide the content on the web. As another example, in the case of providing content to a content receiving device 130 having a limited resolution such as a PMP or a mobile phone, the original content changing unit 211 may include the storage capacity of the content receiving device 130 or The original image is resized in consideration of the resolution to generate the changed image.

3 is a reference diagram for explaining a process of changing an attribute of an original content by the original content changing unit 211 of FIG. 2.

Referring to FIG. 3, for example, if the resolution of the original image 310 corresponding to the original content is 2592x1944, the original content changing unit 211 resizes the original image 310 to create a 1920x1980 image 311 and 1024x768. An image 312 of, 800x480 image 313, and an image 314 of 400x240 are changed. Since certain web pages may limit the resolution of an image to be uploaded, the original content change unit 211 converts the original image according to the image file resolution supported by the web page to provide the content as illustrated in FIG. 3. Change it to an appropriate resolution to create a modified image.

In addition, when the storage capacity of the content receiving device 130 connected through the network 140 is insufficient or the supported resolution is lower than that of the original content, the original content change unit 211 resizes the original content to have a small capacity. Create For example, when the content receiving device 130 is a mobile phone and the display of the mobile phone has a resolution of up to 800x480, the original content changing unit 211 resizes the original image to an 800x480 image optimized for the display of the mobile phone. Can be changed to.

In addition, when the original content is a video and the codec used for encoding the original content video is not supported by the content receiving device 130, the original content change unit 211 performs transcoding on the original video. A modified video in the form of a video codec supported by the content receiving device 130 may be generated.

On the other hand, the content providing device 210 may automatically change the attribute of the content from the storage capacity or resolution information of the content receiving device 130 as described above, and the user can change the original content through a user interface not shown. You can choose how to change the properties of the. For example, the resolution information and changeable resolution information of the original image may be displayed through the user interface, and the user may select to change the original image to a desired resolution.

The meta data generator 212 generates meta data including location information of the storage device 120 in which the original content is stored.

The content provider 213 provides the changed content and metadata to a device connected through a network.

4 is a reference diagram showing meta data according to an embodiment of the present invention.

Referring to FIG. 4, meta data according to an embodiment of the present invention includes content meta data, device meta data, and user meta data.

Content metadata includes content ID, original content location information, and original access authority information.

The content ID is information for identifying various contents shared through a network. The location information of the original content is location information of the storage device 120 in which the original content is stored, and may be in the form of a Universal Resource Locator (URL). Specifically, the original content location information includes a protocol and a path in which the original content is stored, and may be expressed in the form of “protocol://'the location of the storage device in which the original content is stored.” For example, a storage device When the location of 120 is “http://www.samsung.com/private_contents”, the corresponding URL information is added to the metadata as original content location information.

The original access right information is for preventing the original content from being shared with any user. For example, the above-described original content location information is encrypted, and the original access right information is used to decrypt the encrypted original content location information. It may be encryption key information for.

The device metadata refers to information on the transmission history details when changed content is transmitted between different devices. For example, if the changed content is transmitted from the first device (Device ID = 1) to the second device (Device ID = 2) to the third device (Device ID = 3), the changed content stored in the third device The device metadata may include ID information of the first device and the second device indicating a moving path of the content. In this way, it is possible to track a content transmission path and an illegal content flow through the device metadata.

User metadata includes editing history and account information. The editing history includes information on edits of changed content. For example, in the case of resized image content, the editing history metadata may include information on the size of the original image and information on changes made to the original image. In the case of transcoded video content, the editing history metadata may contain the original video. Codec information, etc. may be included. The account information represents identification information of a user who provides the content. For example, in the case of content provided on a specific web bulletin board, the account information may be ID information of a user who uploads the corresponding content to the web bulletin board.

As described above, the content providing apparatus 210 according to an embodiment of the present invention includes the location information of the original content of the changed content in the metadata, so that the location information of the metadata in another device that shares the changed content through a network You can use to facilitate access to the original content.

5 is a block diagram showing the configuration of a content receiving apparatus according to an embodiment of the present invention.

Referring to FIG. 5, a content receiving device 500 according to an embodiment of the present invention includes a content receiving unit 510, an additional information extracting unit 520, an input unit 530, and a control unit 540.

The content receiving unit 510 is a communication module that performs data communication with other devices connected to a network, and receives content shared through a network.

The additional information extracting unit 520 extracts additional information of the received content as shown in FIG. 4 from the metadata of the received content. In particular, according to an embodiment of the present invention, the additional information extraction unit 520 extracts the location information of the original content from the metadata of the received content, and the user receives the original content through the input unit 530 as necessary. Select whether or not to enable the reception of original content. The controller 540 controls the operation of each component of the content receiving device 500.

6A and 6B are reference diagrams for explaining a process of receiving original content according to an embodiment of the present invention. 6A and 6B illustrate a case of a mobile phone 600 supporting a network connection as a content receiving device.

Referring to FIG. 6A, when a mobile phone 600 supporting a network connection connects to a predetermined web page that provides contents through a network network such as Wi-Fi, a content list is displayed on the display unit 610 of the mobile phone 600. (621 to 624) are displayed. Referring to FIG. 6B, in the case of a predetermined input unit 630 or a mobile phone 600 supporting touch recognition, when a user selects one of the content lists 621 to 624 through a touch of a desired contact area, the display Information 625 for inquiring whether or not to receive the original content is displayed to the user through the unit 610, and the user selects whether to receive the original content through the selection interfaces 626 and 627.

When the user selects to receive the original content, the content receiving unit 510 requests transmission of the original content to a storage device in which the original content is stored using the location information of the original content extracted from the additional information extraction unit 520. The storage device determines whether or not the receiving device requesting the transmission of the original content has access to the original, and determines whether to transmit the original content according to the determination result.

As a method of restricting the access right of the original content, as described above, there may be a method of encrypting the location information of the original content stored in the metadata and granting an encryption key that only a legitimate user can decrypt as the original access right information. have. As another method, the storage device storing the original content lists and stores the user ID or device ID that has the original access authority, and then determines whether the request is from a user or device included in the list when requesting access to the original content. Therefore, it is possible to selectively provide original content by accepting the original access request.

7 is a flow chart showing a method for providing content according to an embodiment of the present invention.

Referring to FIG. 7, in step 710, original content is stored in a predetermined storage device. As described above, the storage device is preferably a storage device accessible through a network such as NAS.

In step 720, the original content change unit 211 of the content providing device 210 changes the attribute of the original content to generate the changed content. As described above, when content is uploaded on a web page, the size of the original content is reduced in consideration of the size of an attached file supported by the web page. In addition, the content providing device 210 generates changed content by processing original content into a form usable in the content receiving device 220 in consideration of the storage capacity or resolution of the content receiving device 220.

In step 730, the metadata generator 212 generates metadata including at least location information of the original content. The location information indicates an access path on a network of the storage device in which the original content is stored, and may be in the form of a URL as described above.

In step 740, the changed content and meta data through the content providing unit 213 are provided to other devices connected through the network.

8 is a flow chart showing a method for receiving content according to an embodiment of the present invention.

Referring to FIG. 8, in step 810, predetermined content is provided from another device connected through a network through a content receiving unit 510.

In step 820, the additional information extraction unit 520 extracts the location information of the original content from the metadata of the content.

In step 830, the content receiving unit 530 requests transmission of the original content to a storage device in which the original content is stored using the location information of the extracted original content, and receives the original content from the storage device.

9 is a flowchart illustrating a process of providing original content in a content sharing system according to an embodiment of the present invention.

Referring to FIG. 9, original content is stored in a storage device 920 accessible through a network (step 941). Further, the original content is provided to the content providing device 910 (step 942). Additionally, information on the content receiving device 930, for example, storage capacity or resolution information of the content receiving device 930 is provided to the content providing device 910 (step 943).

The content providing device 910 changes the original content into a format suitable for use in the content receiving device 930 in consideration of storage capacity or resolution information of the content receiving device 930 (step 944). For example, in the case of image content, resizing is performed in consideration of the storage capacity and resolution of the content receiving device 930, and in the case of video content, transcoding is performed in consideration of a codec playable in the content receiving device 930.

The content providing device 910 generates metadata including location information of a storage device in which the original content is stored (step 945). In addition, the content providing device 910 provides the changed content and metadata to the content receiving device 930 connected through a network.

The content receiving device 930 extracts location information of the storage device in which the original content is stored from the metadata (step 947). Then, the content receiving device 930 requests the storage device 920 to provide the original content (step 948). The storage device 920 compares the user ID or device ID granted access to the original content with the user ID or device ID of the content receiving device 930 requesting the original content to determine whether the request is from a device with original access rights. (Step 949). If a device or user has a legitimate access right, the storage device 920 provides the original content to the content receiving device 930.

According to such an embodiment of the present invention, the convenience of accessing the original content may be increased by using the metadata of the content.

10 is a block diagram illustrating a content sharing system through a network according to another embodiment of the present invention.

Referring to FIG. 10, a content sharing system according to another embodiment of the present invention includes a content providing device 1010 and a content receiving device 1030 interconnected through a predetermined network 1020.

The content providing apparatus 1010 includes a content storage unit 1011, a content change unit 1012, a device information storage unit 1013, and a communication unit 1014.

The content storage unit 1011 stores content data to be provided to the content receiving device 1030.

The communication unit 1014 receives device status information from the content receiving apparatus 1030, and the received device status information is stored in the device information storage unit 1013.

11 is a diagram illustrating an example of device state information of a content receiving apparatus.

Referring to FIG. 11, device status information includes information related to device performance such as a resolution, storage capacity, and supported audio/video format of a content receiving device. Additionally, as illustrated, user setting information preset by the user may be included in the device status information. For example, if you look at the status information of device 1 among the content receiving devices connected through the network, the resolution of device 1 is 640x480, and the storage capacity is (remaining capacity)/(total storage capacity). It indicates that there is 120GB of remaining capacity. In addition, in the case of device 1, it can be seen from the device status information that the codec of DivX, MPEG-4, and JPEG is supported. In addition, in the case of device 1, it can be confirmed that the property of the content to be received is 320x240 and the DivX codec is set according to the user's setting. Such user setting information may be previously stored and transmitted in the device state information, or may be information set in real time by a user through the user interface 1033 of the content receiving apparatus 1030.

Referring to FIG. 10 again, the content change unit 1012 obtains the performance and user setting information of the device to which the current content is to be received by using the device status information stored in the device information storage unit 1013, and uses the The properties of the content stored in the content storage unit 1011 are appropriately changed for the content receiving device 1030. For example, it is assumed that the above-described device 1 of FIG. 11 is a device that currently receives content, and the provided content is a video file encoded with an H.264 codec having a resolution of 800x600. In this case, the content change unit 1012 changes the resolution of the video file stored in the content storage unit 1011 to 640x480 according to the resolution of device 1 or 320x240 according to user settings, while H. 264 codec is transcoded with DivX or MPEG4 codec supported by Device 1, or by transcoding with DivX codec according to user settings to change the properties of the video file. The content changed by the content change unit 1012 is transmitted to the content receiving device 1030 connected through the network 1020 through the communication unit 1014. In addition, in addition to the above-described embodiments, the content change unit 1012 considers the size of the content to be transmitted and the remaining storage space of the content receiving device 1030 and selects the content in a format suitable for the content receiving device 1030 to receive. Content properties can be changed by resizing.

The content receiving device 1030 includes a communication unit 1031, a storage unit 1032, a user interface 1033, and a control unit 1034.

The user interface 1033 corresponds to an input unit that displays a list of content provided from the content providing device 1010 and allows the user to select the content and properties of the content to be received.

The communication unit 1031 transmits the content information selected by the user interface 1033 and device status information of the content receiving apparatus 1030 to the content providing apparatus 1010. The storage unit 1032 stores content received from the content providing device through the communication unit 1031, and the control unit 1034 controls each component of the content receiving device 1030.

12A to 12D are reference diagrams for explaining a process of receiving content according to device state information of a content receiving apparatus according to an embodiment of the present invention. 12A to 12D illustrate a mobile communication terminal 1200 supporting a network connection as a content receiving device. In addition, in FIGS. 12A to 12D, a process of receiving video content as content is illustrated.

Referring to FIG. 12A, when a mobile communication terminal 1200 supporting a network connection is connected to a content providing device through a network network such as Wi-Fi or 3GS, the content providing device is a display unit of the mobile communication terminal 1200 ( 1210) is provided with a list of contents 1211 to 1214. In the case of a predetermined input unit 1230 or a mobile communication terminal 1200 supporting touch recognition, a user selects one of the content lists 1211 to 1214 through a touch of a desired content area. Referring to FIG. 12B, when content is selected by a user, an input window 1215 for inquiring whether or not to receive the content is displayed through the display 1210, and the user selects the input unit 1230 or the selection interfaces 1216 and 1217. Select whether to receive content through

Referring to FIG. 12C, when a user selects to receive content, an input window 1221 for selecting a resolution of the content to be received is displayed on the display 1210. The user selects the resolution of the content to be received by touching the input unit 1230 or an area where the desired resolution is displayed.

Referring to FIG. 12D, after the user selects a resolution of the content, an input window 1222 for selecting a codec of the content to be received is displayed on the display 1210. The user may select a codec of the content to be received by touching the input unit 1230 or an area in which the desired codec is displayed.

As illustrated in FIGS. 12A to 12, the user setting information determined according to the user's selection at the content receiving device side is transmitted to the content providing device through the communication unit, and the content providing device By changing an attribute, the changed content may be provided to the content receiving device. In addition, when there is no separate user setting or when the user automatically selects the content transmission, the content providing device may provide the changed content by changing an attribute of the content to suit the performance of the content receiving device.

13 is a flow chart showing a method for providing content according to another embodiment of the present invention.

Referring to FIG. 13, in step 1310, the content providing apparatus 1010 acquires device state information of the content receiving apparatus 1030. As described above, the device status information may include information on device performance, such as a resolution available in the content receiving apparatus 1030, a remaining capacity, and a supported codec, and information on a resolution or codec of a content set by a user.

In step 1320, the content providing apparatus 1010 changes the attribute of the content provided to the content receiving apparatus 1030 by using the device status information of the content receiving apparatus 1030.

In step 1330, the content providing device 1010 provides the changed content to the content receiving device 1030 through a network.

14 is a flow chart showing a method for receiving content according to another embodiment of the present invention.

Referring to FIG. 14, in step 1410, content to be received is selected from among contents provided from the content providing device 1010 through the user interface 1033 of the content receiving device 1030.

In step 1420, the content receiving device 1030 transmits device status information to the content providing device 1020.

In step 1430, when the content providing device 1010 changes the attribute of the content appropriately for the content receiving device 1030 using the received device status information and transmits the changed content, the content receiving device 1030 transmits the changed content. Receive.

According to another embodiment of the present invention, it is possible to improve the compatibility of the content by providing content suitable for the performance of the content receiving device or the user's settings, and also increase the user's convenience of using the content.

Meanwhile, the above-described embodiments of the present invention can be written as a program that can be executed in a computer, and can be implemented in a general-purpose digital computer that operates the program using a computer-readable recording medium. The computer-readable recording medium includes a storage medium such as a magnetic storage medium (for example, ROM, floppy disk, hard disk, etc.) and an optical reading medium (for example, CD-ROM, DVD, etc.).

So far, the present invention has been looked at around its preferred embodiments. Those of ordinary skill in the art to which the present invention pertains will be able to understand that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. Therefore, the disclosed embodiments should be considered from an illustrative point of view rather than a limiting point of view. The scope of the present invention is shown in the claims rather than the above description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

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Claims (12)

In the method of receiving content through a network,
Receiving, by the content receiving device, predetermined content from the content providing device;
Extracting, by the content receiving device, location information of the original content from the metadata of the content; And
And receiving, by the content receiving device, the original content from a predetermined storage device connected through the network using location information of the extracted original content,
The predetermined content is generated by changing the original content by the content providing device based on state information of the content receiving device and user setting information set in real time by a user,
The metadata includes device metadata indicating information on the transmission history details when the changed content of the predetermined content is transmitted between different devices, and editing history information on the edited details of the content changed by the content providing device And, original access right information indicating encryption key information for decryption of the location information of the original content. The method of claim 1,
The location information is
Content receiving method comprising the URL information of the storage device. The method of claim 1,
Further comprising providing storage space and/or resolution information of the content receiving device to the content providing device,
The content receiving method, wherein the predetermined content is generated by resizing the original content by the content providing device according to a storage space and/or resolution of the content receiving device. The method of claim 1,
The meta data is
The content receiving method, characterized in that it further comprises original access right information on the access right to the original content. In the device for receiving content through a network,
A content receiving unit that receives predetermined content from a content providing device,
And an additional information extracting unit for extracting location information of the original content from the metadata of the content,
The content receiver
Receiving the original content from a predetermined storage device connected through the network using the location information of the extracted original content,
The predetermined content is generated by changing the original content by the content providing device based on state information of the device receiving the predetermined content and user setting information set in real time by the user,
The metadata includes device metadata indicating information on the transmission history when the changed content of the predetermined content is transmitted between different devices, and an edit history of the edited content changed by the content providing device. Information, and original access right information indicating encryption key information for decrypting the location information of the original content. The method of claim 5,
The location information is
Content receiving device comprising the URL information of the storage device. The method of claim 5,
A device information providing unit for providing storage space and/or resolution information of the content receiving device to the device providing the predetermined content,
The content receiving device, wherein the predetermined content is generated by resizing the original content by a device providing the predetermined content according to a storage space and/or resolution of the content receiving device. In the method of providing content through a network,
Obtaining, by a content providing device, status information of a content receiving device that receives content and user setting information set in real time by a user;
Changing, by the content providing device, an attribute of the content provided to the content receiving device by using the state information of the content receiving device and the user setting information; And
Including the step of providing the changed content to the content receiving device,
The metadata of the content includes device metadata indicating information on the transmission history when the changed content of the content is transmitted between different devices, and an edit history of the edited content changed by the content providing device. The content providing method comprising information and original access right information indicating encryption key information for decryption of the location information of the original content. delete In the content providing device through a network,
A content storage unit for storing predetermined content;
A communication unit for receiving state information of a content receiving device receiving the content and user setting information set in real time by a user when the content is received;
A device information storage unit for storing state information of the received content receiving device; And
A content change unit for changing an attribute of the content provided to the content receiving device by using the state information of the content receiving device and the user setting information,
The metadata of the content includes device metadata indicating information on the transmission history details when the changed content of the predetermined content is transmitted between different devices, and an edit of the content changed by the content change unit. A content providing apparatus comprising: editing history information and original access authority information indicating encryption key information for decryption of the location information of the original content. In the content receiving method through the network,
Selecting, by a content receiving device, a content to be received from among content provided from the content providing device;
Transmitting, by the content receiving device, status information of the content receiving device and user setting information set in real time by a user when the content is received to the content providing device; And
Receiving, by a content receiving device, a content whose characteristics have been changed by the content providing device according to state information of the content receiving device and the user setting information, from the content providing device;
Including,
The metadata of the content includes device metadata indicating information on the transmission history when the changed content of the content is transmitted between different devices, and an edit history of the edited content changed by the content providing device. The content receiving method comprising information and original access authority information indicating encryption key information for decryption of the location information of the original content. In the content receiving device through a network,
A user interface for selecting contents to be received among contents provided from a contents providing device;
The content providing device transmits status information of the device receiving the content and user setting information set in real time by a user when the content is received to the content providing device, and according to the state information of the device and the user setting information And a communication unit for receiving content whose characteristics are changed by
The metadata of the content includes device metadata indicating information on the transmission history when the changed content of the content is transmitted between different devices, and an edit history of the edited content changed by the content providing device. A content receiving device comprising: information and original access authority information indicating encryption key information for decryption of the location information of the original content.

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