KR100746038B1 - Portable terminal synchronizing apparatus and method for home registry based to web - Google Patents

Abstract

A synchronization device of a portable terminal using web-based home registry and a method thereof are provided to synchronize contents on a network configured at home with contents of a user's portable terminal by using the web-based home registry, thereby freely uploading and downloading the synchronized contents. A device and contents information management module(230) manages devices and contents information included in the devices on the basis of analysis of description information obtained according to a description information request related to the devices participating in a home network. A home registry web service module(220) provides a web service for retrieval and synchronization for contents and the registered devices from devices out of the home. A synchronization management module(260) receives alteration records from synchronization targets through the web service, and determines synchronization target items to conduct synchronization for the contents and meta data.

Description

Portable terminal synchronizing apparatus and method for home registry based to web}

1 is a diagram illustrating a Universal Plug and Play (UPnP) Internet Gateway Device (IGD) according to the prior art.

2 is a diagram illustrating a configuration of a home registry according to an embodiment of the present invention.

3 is a flowchart of a new device and a new content registration service according to an embodiment of the present invention.

4 is a flowchart of a device and content information retrieval service according to an embodiment of the present invention.

5 is a flowchart illustrating a content providing service according to a first embodiment of the present invention.

6 is a flowchart illustrating an HTTP-based content request using content information according to a second embodiment of the present invention.

7 is a flowchart of a content synchronization service according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

200: home gateway 210: home registry web service module 220

220: device and content information management module 230: device and content information database

240: web service processing module 250: synchronization management module

270: portable terminal

The present invention relates to a method and apparatus for synchronizing a portable terminal using a web-based home registry, wherein a portable terminal outside the home is connected to a content server in the home to manage the configuration of devices and contents in the home and search for contents in the portable terminal. The present invention relates to a remote content synchronization method and apparatus for a portable terminal that can be uploaded and downloaded.

Recently, with the development of mobile communication technology, the spread of portable terminals such as mobile phones, PDAs, PMPs, MP3Ps, and notebook computers is spreading.

The user is exposed to various contents such as document creation and editing, music viewing, photo shooting and editing, video viewing, and DMB broadcasting viewing using a portable terminal including a storage medium capable of storing various contents.

With the development of mobile communication technology, it is possible to download or upload various contents provided by a communication company or other web server on / offline using these portable terminals.

In Korean Patent Publication No. 2000-0047603 (Digital Camera with Automatic Data Upload Function), a picture or video file photographed by a user's digital camera is transmitted to a destination computer system or server through the Internet.

Korean Patent Laid-Open Publication No. 2002-0036020 (MP3 phone download system using wireless Internet and a download method thereof) is an MP3 phone download system using wireless Internet, which is connected to the Internet and receives and plays MP3 music files.

In Korea Patent Publication 2004-0106949 (Personal Content Remote Management System and Method), a personal PC, a content server, a web server, and the like are interlocked with each other through a remote content relay gateway to search and store contents existing in them using a mobile terminal. Remote content management by deleting, sending.

1 is a diagram illustrating a Universal Plug and Play (UPnP) Internet Gateway Device (IGD) according to the prior art.

The UPnP IGD 100 according to the prior art is to provide an easy and convenient communication method between devices and services distributed in various places such as home appliances, wireless communication devices, and PC-related devices as home network middleware. In a network environment without an administrator, it is to provide a connection method between devices or a device and the Internet easily in a standardized manner without user's work.

In other words, each device can easily connect to the network at any time, letting other devices know their presence and function, communicate or control them, and easily remove them from the network when they are no longer in use.

In order to connect the LAN network of the home network and the public internet network, a private IP valid only within the home network must be allocated as a dynamic IP.

Dynamic IP can be automatically assigned a new dynamic IP through the Dynamic Host Configuration Protocol (DHCP), a protocol that centrally manages and assigns IP over a network.

The UPnP IGD 100 includes a UPnP Internet Gateway Device (IGD) service module 110, a network address translation module (NAT) 120, an address translation table 130, a UPnP processing module 140, and an HTTP web server 150. ), The router module 160 and the DHCP server module 170 serves to connect the indoor device 180 to the external server 190.

The UPnP IGD service module 110 is a module that provides a UPnP service according to a standard defined by the UPnP forum.

The network address translation module 120 is an IP router that forwards a packet's IP address and a TCP / UDP port number, and maps private addresses to one or more public IP addresses allocated from an Internet service provider. do.

The address translation table 130 is a table in which the network address translation module 120 records a public IP address mapped to a private IP address. When the network address translation module 120 and the mapping exist, forwarding traffic from the Internet is forwarded to the private network. It will play a role.

The UPnP processing module 140 searches for a device that is connected to a network, a SOAP for transmitting control commands, etc. to a device using GENA, an XML grammar used for exchanging events (state change) between UPnP devices, and an available service. It consists of SSDP, a protocol for doing so, and operates as a UPnP compatible device in a UPnP network.

The HTTP web server 150 should be embedded in the UPnP IGD 100 on the basis of which UPnP technology is performed.

The router module 160 is a device for connecting separate networks using the same transport protocol. The router module 160 connects network layers with each other and performs a router function for connecting a LAN network of a private network and a WAN network, which is a public Internet network. .

The DHCP server module 170 is a protocol that automatically assigns various TCP / IP protocol basic settings including IP addresses to individual clients, and automatically manages TCP / IP settings, and provides configuration information related to IP addresses to individual systems. It is composed of DHCP client and server.

In the prior art as described above, the application of the wireless Internet connects to a specific server of the public internet and simply uploads or downloads the contents stored in the portable terminal. The user who accesses the specific server has various contents existing in the corresponding server to download the content. There is a drawback of having to search for them manually and selectively download them.

In addition, since the content is simply transmitted in one direction, it is difficult to perform high level tasks related to the content, such as managing metadata, synchronizing, or updating a playlist of a portable terminal including a playback device.

That is, by using only a public Internet server, connection is not possible when directly connecting to a server in a private network such as a home network.

The present invention is designed to improve the above-mentioned problems, a web-based home registry that can be freely uploaded and downloaded by synchronizing the contents of the user's portable terminal with the content on the network that can be configured in a home using a web-based home registry. The present invention relates to a synchronization method and apparatus for a portable terminal.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a device, a content information management module, device, and content information for managing information on all devices capable of participating in a home network and content information that the devices can possess, according to an embodiment of the present invention, A home registry web service module 220 that provides a web service for devices outside the home network to search and synchronize, a device and content search web service provided by the home registry web service module 220, a content providing web service, Web service processing module that is the base for operating at least one of the content synchronization web service, a synchronization management module for synchronizing the contents provided by the home registry, and metadata information of the content distributed in devices participating in the home network Are stored It includes a content information database and the database.

In order to achieve the above object, a method of extracting synchronization target information from media servers in the home and transmitting a SOAP message through retrieval of device and content information according to an embodiment of the present invention, obtaining synchronization target device information from a home registry, and Requesting the change record, returning the change record of the device, extracting the change record of the synchronization target from the in-home media servers, requesting the change record for the off-site device from the home registry, and changing the change record of the device. Extracting the change record of the outdoor device by replying, determining an item to be synchronized in the home registry, requesting and receiving the outdoor device database to perform synchronization on the changed information, and retransmitting the database of the outdoor device after the synchronization is performed. Steps.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

2 is a diagram illustrating a configuration of a home gateway according to an embodiment of the present invention.

The home gateway 200 according to the embodiment of the present invention is an additional configuration of the home registry 210 in the UPnP IGD 100 of FIG. 1, but is configured separately from the UPnP IGD 100 according to an implementation method. ) And a portable device 270.

Indoor device 180, for example, a personal video recorder (PVR), home AV system, network audio, portable terminal 270 that a user can own content of a personal PC, for example, MP3P, PMP, digital In order to support search and synchronization for the corresponding content in the camera, the home registry 210 based on the web service may be used.

Web service is an open web technology standardized through W3C, OASIS, etc., and is a distributed computing technology for calling services provided by remote objects through the web using standard specifications such as XML-based SOAP, WSDL, and UDDI. Reference may be made to the relevant specification of the Wide Web Consortium and is not described herein in detail.

As shown, the home gateway 200 may be configured with a UPnP IGD 100 and a home registry.

The UPnP IGD 100 includes all the configuration modules of FIG. 1, and the home registry 210 of FIG. 2 may be further configured.

The home registry 210 includes the home registry web service module 220, the device and content information management module 230, the device and content information database 240, the web service processing module 250, and the synchronization management module 260. Can be configured.

The configuration of the home registry 210 is not limited thereto, and may include a configuration according to any implementation manner derived from or combined with them.

The home registry web service module 220 may provide a web service so that the stored device information and the content information may be searched for and synchronized with various contents stored in an outdoor device, that is, a portable terminal 270 that a user may own. . Web services technologies, as mentioned above, can refer to the relevant standard specifications of the World Wide Web Consortium.

The type of web service provided by the home registry 210 may include a device search web service, a content search web service, a content providing web service, a content synchronization web service, and the detailed service name and parameters of the web service. It may vary.

The device and content information management module 230 manages information on all devices participating in the home network, for example, a PVR, a home AV system, network audio, a personal PC, and information on content held by the device. Module. In a home network with UPnP configured as standard middleware, when a new device joins the network and is assigned a dynamic IP, the device joins the home network through SSDP, a protocol for discovering devices and available services connected to the network. Other configuration devices are notified.

The device and content information management module 230 of the home registry 210 notified of the participation of the new device requests and obtains description information of the newly joined device, and analyzes the extracted device related metadata information.

The extracted device related metadata information is stored in the device and content information database 240.

On the other hand, if the newly added device has a content such as a media server, the device and content information management module 230 secures the content information of the device through a UPnP call, and the device and the content information of the device; The content information database 240 stores the content information.

As mentioned above, the device and content information database 240 is a storage medium for storing metadata information of various contents distributed in the in-house devices extracted and collected by the device and content information management module 230, such as SQLite. It can be an RDBMS or a data file in a specific format.

The device and content information database 240 may be configured by dividing the device information database and the content information database, or may be configured as one database.

Items stored in the device information database include information extracted through the UPnP device description file in addition to the IP address assigned to the device, for example, UPnP device type information, user-defined device name, manufacturer, manufacturer site URL, device description information, It may be a model name, a model number, a URL associated with the model, a manufacturing serial number, a unique ID, and a universal product code (UPC).

The items stored in the content information database may be information that can be obtained through a browser command, for example, media type information such as a photo, audio, and video.

The web service processing module 250 includes a SOAP processing module, an XML parser, and a WSDL which is a service implementation document used to transmit a control command to a device using an XML grammar, and is provided by the home registry web service module 220. This module provides basic web service processing functions that are the basis for operating the device search web service, content search web service, content providing web service, and content synchronization web service.

The synchronization management module 260 is a module that actually performs a content synchronization service provided by the home registry 210, and is a portable terminal 280 owned by an externally connected user, for example, a PMP, an MP3P, a mobile phone. It receives the change record from the synchronization target server, PDA, etc. to determine the synchronization target item, and transmits the actual content file and synchronizes the metadata.

3 is a flowchart illustrating a new device and a new content registration service according to an embodiment of the present invention.

A new device and a new content registration service according to an embodiment of the present invention may be a home device (B), for example, a new device which may be at least one of a PVR, a personal PC, a network audio, and a home AV system. ) To register as a new device and new content.

First, when a new device joins UPnP's in-house media server A, the new device participating in UPnP requests dynamic IP allocation from the DHCP server module 170 of the home registry B (S300). Upon receiving the dynamic IP allocation request, the DHCP server module 170 allocates the dynamic IP (S305), updates the public IP mapped to the IP address in the address translation table 130 (S310).

If a dynamic IP is assigned to a new device after a record update (S310) of the address translation table 130 (S315), the new device indicates that the device has participated in UPnP, using the SSDP of the device and the content information management module 230, Notification to other devices (S320), and receives the participation notification of the device (S325).

After receiving the participation notification of the new device (S325), when the device and the content information management module 230 request description of the new device (S330), the description of the newly joined device is provided (S335), and descriptions for these are obtained. Analyze (S340).

The analyzed device description is forwarded to UPnP with reference to the address translation table 130 (S345), and UPnP device type information from the device description of the new device, for example, a user-specified device name, manufacturer, manufacturer site URL, and device description. By extracting information, model name, model number, URL related to the model, manufacturing serial number, unique ID, UPC, etc., and storing them in the device and content information database 240 together with the private IP of the new UPnP device (S350).

The device description of the new device is registered (S350), and it is determined whether the registered UPnP device includes content (S355).

If the new UPnP device is a device including the content, the device and the content information management module 230 calls the UPnP service to obtain the content information held by the new UPnP device (S360), otherwise the new device The device description of the device is registered and terminated.

In the case of the device including the content, the new device receiving the UPnP service call provides the device and the content information management module 230 with information about the content held by the new device (S365). The device and content information management module 230 analyzes the provided content information (S370) and refers to the address translation table 130 (S375) and registers corresponding contents (S380).

4 is a flowchart illustrating a device and content information retrieval service according to an embodiment of the present invention.

Device and content information retrieval service according to an embodiment of the present invention relates to a process for providing a service for retrieving device and content information of the media server in the home from the device outside the home on the public Internet network.

The content information is an item stored in the device and the content information database 240 and is information that can be obtained through a browser command among content directory services of the UPnP media server. This is defined in the UPnP CDS standard specification for media types such as photo, audio and video.

The user first searches the address of the home registry (B) in order to obtain information about devices and contents in the home network by using an external device (C) existing in the public Internet network, for example, an MP3P, a PMP, or a mobile phone. (S400).

The address search of the home registry (B) is performed by using the home registry (B) using at least one of the UDDI of the home registry web service module 220 and the DDNS service when the user knows the fixed IP and the dynamic IP is obtained through the ISP. ) Can be searched for.

After retrieving the address of the home registry (B) (S400), the WSDL document is requested to the home registry web service module 220 of the home registry (B) to call the service and the list of web services (S405). The home registry web service module 220 of the registry B transmits the corresponding WSDL document (S410).

WSDL is an XML-based language that provides a way to access a service. In the home device (C), the service information is analyzed through the received WSDL document (S415), and SOAP is generated to request a device search web service. In step S420, the service is sent to the service address of the home registry B.

The home registry (B) receiving the device search web service request (S425) searches the device and content information database 240, and writes information for the device call in the web service processing module 250 as a SOAP response message. It transmits to the outdoor device (C) (S435).

The home device C receiving the SOAP response message analyzes it to obtain desired information (S440).

The foregoing processes are embodiments of the device, and content information retrieval may be equally applied.

The outdoor device C generates a request SOAP message for the content search web service obtained through the WSDL document and transmits it to the service address of the home registry B (S445). The home registry (B), which has received the content search web service (S450), searches the device and the content information database 240 (S455), writes the information of the found content into a SOAP response message, and sends it to an external device (C). (S460).

Upon receiving the content information search result, the outdoor device C analyzes the corresponding content information to obtain information (S465), and the information search service of the device and the content is terminated.

5 is a flowchart illustrating a content providing service according to a first embodiment of the present invention.

Content providing service according to an embodiment of the present invention is connected to the home media server (A), the home registry (B), the home device (C) that holds the content, such as music or video using HTTP using the address information of the content The process of requesting content based on this.

First, the outdoor device C extracts address information of desired content from a content information search service reception result obtained in the process of FIG. 4 (S500).

The address of the content is a public IP address mapped to the address translation table 130 through the network translation address translation module 120 of the UPnP 100 as a public IP. In other words, it is not a private IP where actual content is located in the home network.

The outdoor device C sends the content request packet to the home registry B to the public IP address of the extracted content (S510).

In the home registry (B) receiving the content request message packet (S520), the private IP of the home media server A in the home network is mapped to the public IP address of the content through the network address translation module 120. Reference is made to the address translation table 130 that records the public IP address mapped to the address (S530).

The content request message packet received by the outdoor device C (S520) performs a router function through the router module 160 (S540) and transmits the content request message packet to the indoor media server A (S550).

In-house media server (A) receives the packet (S550) and sends a content response message packet corresponding to the in-house device (S) (S560), and out-of-door device (C) sends a content request message packet step By receiving a response to the content sent in step S510 (S570), a service for requesting and providing content between the in-house media server A and the outside device C may be provided.

That is, the new device and the new content are registered in the process of FIG. 3, the corresponding information search service is provided through the process of FIG. 4 with respect to the already registered or newly registered device and the content, and the substantial content can be provided through FIG. 5. have.

6 is a flowchart illustrating an HTTP-based content request using content information according to a second embodiment of the present invention.

In the HTTP-based content request using the content information according to the second embodiment of the present invention, an in-house media server (A), a home registry (B), and an in-house device (C) having media content such as music or video are connected. The process of requesting content. The content information is an item stored in the device and the content information database 240 and is information that can be obtained through a browser command among content directory services of the UPnP media server. It is defined in the UPnP CDS standard specification for media types such as photo, audio and video.

First, the outdoor device C extracts address information of a content desired by a user from the reception result of the content information retrieval service of FIG. 4 (S600), and transmits a SOAP message to the home registry B for content request (S605). ).

The home registry (B) receives a SOAP message (S610) to identify and obtain content to be provided to the outdoor device (C) from parameter information, for example, a URI and a UUID (S615), and the device where the content is actually located. Information about the device is obtained through the device and content information database 240 (S620).

Through the device and content information database 240, the private IP address of the home media server A where the actual content is located and the URL address of the corresponding content are extracted (S625) and the content request via HTTP to the home media server A is performed. The message is transmitted (S630).

Having received the content request message (S635), the in-house media server A sends a response message for the corresponding content to the home registry B (S640).

When the reception of the content response message is completed in the home registry B (S645), the binary of the received content is packaged with the SOAP message (S650), and a response SOAP message for the content request is created and sent to the outdoor device C. (S655). As a method of packaging the content binary file with the SOAP message, at least one of a method such as MTOM and DIME may be used.

The outdoor device C receives the response SOAP message packaged with the binary of the content (S660) and extracts the content binary (S665), thereby terminating the HTTP-based content request using the content information.

As in FIG. 5, a new device and new content are registered through the process of FIG. 3, and an information retrieval service is provided in the process of FIG. 4 with respect to the device and content that is already registered or newly registered. I can receive it.

7 is a flowchart illustrating a content synchronization service according to an embodiment of the present invention.

Synchronization of content according to an embodiment of the present invention is performed by the home media server A, which is the synchronization target, from the information received from the device and content information retrieval service of FIG. 4 of the home registry B. Information is extracted (S700) and a SOAP message for the web service is transmitted to the home registry (B) (S702).

The content synchronization web service SOAP message is received (S704) to start the synchronization service.

The home registry (B) obtains the device information in the home by referring to the device and content information database (240) (S706), and sends an HTTP change record request message through a URL to request a change recording to the in-house media server (A). It is sent (S708).

In-house media server (A) that receives the HTTP change record request (S710) sends a response to the change record to the home registry (B) (S712), and the home registry (B) that receives the change record response receives the change record. Information on the server change record is extracted during the response (S716).

The outdoor device C also receives the HTTP change record request message through the change record request URL sent from the home registry B, returns a response to the change record to the home registry B, and analyzes and extracts the change records. (S718-S726).

The synchronization target item is determined based on the extracted change records (S728), and a message for requesting a database (not shown) of the outdoor device C for synchronization is sent (S730). Upon receiving the database request message (S732), the outdoor device C sends a response message to the request (S734) and receives the corresponding message from the home registry B (S736).

The synchronization target is extracted from the received outdoor device C database (S738), and the synchronization of the content of the synchronization target item (S728) determined above is performed (S740).

Synchronization of the content may be bidirectional synchronization of the content via HTTP from the in-house media server (A) to the in-house device (C) or the out-of-home device (C) to the in-house media server (A).

After the content synchronization (S740), the synchronization for the metadata is performed (S742), and updates the database of the outdoor device (C) and transmits it to the outdoor device (S744).

The outdoor device C receives the changed database (S746), extracts and stores the changed metadata (S748), thereby completing all synchronization processes.

According to the apparatus and method for synchronizing contents of a portable terminal using a web-based home registry of the present invention as described above, there are one or more of the following effects.

First, there is an advantage that the content can be synchronized remotely between the server in the home network and the device outside the home through the wireless Internet.

Second, it is possible to remotely synchronize the metadata or content list, so that metadata and contents can be easily and quickly synchronized regardless of whether or not the home network is used.

Third, since the server can be uploaded / downloaded between the server in the home network that can hold various contents and the portable terminal that can be owned by the user, the contents in the server in the home network can be managed.

Claims (5)

A device and a content information management module based on the analysis of the description information obtained according to a request for description information about a device participating in a home network, the device and the content information management module; A home registry web service module that provides a web service for searching and synchronizing the registered device and contents from an outdoor device; And a synchronization management module configured to receive a change record from the synchronization target through the provided web service, determine a synchronization target item, and perform synchronization on content and metadata. The method of claim 1, The home registry provides at least one web service among device and content search, content request, and content synchronization, and the device and content information management module collects and integrates and manages a list of contents held by the media servers in the home. Content synchronization device of a portable terminal using a web-based home registry to provide a web service to other devices. Registering the device and content information included in the device in a device and a content information database based on analysis of the description information obtained according to a request for description information for a device participating in a home network; Providing a web service for searching and synchronizing the registered device and contents from an outdoor device; And receiving a change record from the synchronization target of the provided web service, determining a synchronization target item, and performing synchronization on content and metadata. The method of claim 3, wherein Providing a web service A method for synchronizing contents of a portable terminal using a web-based home registry that provides at least one web service among a device and contents search, contents provision, and contents synchronization from a home registry. The method of claim 4, wherein Content synchronization is a content synchronization method using a web-based home registry that receives a change record from the in-house media server and the off-site device, and receives the database of the off-site device to perform synchronization to re-send to the off-site device.

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