Abstract: Provided are a method and apparatus for managing a station by providing an encrypted key to the station in a wireless network under a Wi-Fi Protected Pre-Shared Key (WPA-PSK) environment. In the method, a registrar determines whether a new station is a guest station, based on user input. If the new station is a guest station, the registrar includes a session key (and not a shared key) into an M8 message according to a Wi-Fi Alliance (WFA) Simple Config protocol and transmits the M8 message to the station. Accordingly, it is possible to permit a guest station to temporarily access the network without a user's management of information regarding the guest station.

Abstract: A system and method for establishing a secured connection between home network devices are provided. Particularly, a system and method for establishing a secured connection between a home network including a plurality of non-secured Universal Plug and Play (UPnP) devices and a secured external UPnP device by creating virtual UPnP devices for the respective corresponding non-secured UPnP devices are provided. The system for establishing a secured connection between home network devices includes a virtual UPnP device creation unit which creates a secured virtual UPnP device for a non-secured UPnP device, an information storage unit which stores correspondence information regarding the non-secured UPnP device and the virtual UPnP device, and a secured communication unit which securely communicates with a secured UPnP device with reference to the correspondence information.

Abstract: A method and apparatus for preventing duplicate saving of a resource between universal plug and play (UPnP) devices, which provide content directory service during content synchronization, are provided. The method includes receiving a change log including metadata about a changed resource from a UPnP device of a transmitter, determining whether the changed resource is a duplicate based on the received change log, and receiving and saving the changed resource according to a designated saving path based on a result of the determination.

Abstract: A method and system for quickly selecting a device desired by a user from among a plurality of devices on a home network and playing content included in a portable device using the selected device are provided. The method includes displaying a device list of the plurality of content player devices based on the received descriptions, receiving selection of an item on the device list from a user, sending a device notification request message to a content player device corresponding to the selected item, and executing device notification using the content player device that has received the device notification request message.

Abstract: Provided are a network system and method for profiling a remote user interface (RUI), and more particularly, a network system and method for performing optimal RUI profile matching between an RUI client and an RUI server in order for optimal service adaptation for various contents based on composite capabilities/preference profiles (CC/PP).

Abstract: Disclosed is a method and apparatus for processing multiple inputs from a plurality of users in a home network. A control point requests electronic devices in the home network to transmit input capability information, receives the input capability information as a response to the request from the electronic devices, and performs session setup using the input capability information by determining a receiver for receiving input signals and at least two senders for sending input signals. The control point transmits input signals transmitted by the at least two senders to the receiver.

Abstract: A system and method for transmitting/receiving a call on a home network. When a request for call transmission/reception is made, a CP selects a target electronic device to/from which to transmit/receive a call from among at least one electronic device, establishes a connection for call transmission/reception between a terminal and the selected target electronic device, and controls the call transmission/reception between the terminal and the selected target electronic device.

Abstract: The present invention provides an apparatus and method for matching protocols of embedded audio/video (AV) contents. The apparatus includes a remote user interface (RUI) server which receives uniform resource identifier (URI) information of AV contents embedded in user interface (UI) data and protocol information of the AV contents; an RUI client which receives the UI data, which was created using the URI information and the protocol information, from the RUI server; and an AV control point (CP) which receives the protocol information and a control request command for the AV contents from the RUI client, matches protocol information obtained from a media renderer with the protocol information received from the RUI client, and performs a control operation on the AV contents.

Abstract: Provided is a method for synchronizing contents included in devices in a Universal Plug and Play (UPnP) network. A control point device, which contains local content but cannot provide a content directory service, converts information regarding content objects of the control point device into Digital Item Description Language Lite (DIDL-Lite) format, and manages a mapping table, thereby performing synchronization with a device such as a UPnP media server providing a content directory service, without loading a separate protocol stack.

Abstract: A method and apparatus for sharing services on a network are provided. The method can include a first embedded device transmitting a message requesting a service, to an embedded device connected with the first embedded device over the network, the first embedded device receiving code information for implementing the service from the embedded device receiving the message, the first embedded device executing the code information and implementing the service, and the first embedded device registering service information on the service when implementation of the service is completed.

Abstract: A method of synchronizing a plurality of content-directory service (CDS) devices is provided. The method includes retrieving and discovering N CDS devices in a home network by a control point (CP), transmitting a StartSync message that requests the start of synchronization to a certain CDS device of the N CDS devices by the CP, forwarding a StartPeerSync message that informs remaining N-1 CDS devices of the fact that synchronization will be started by the CDS device that has received the StartSync message, and synchronizing each of the N CDS devices with the remaining N-1 CDS devices, in a home network that includes N CDS devices that provide metadata of multimedia content existing in the home network, and the CP that receives metadata from the N CDS devices and requests the media renderer to replay the multimedia data.

Abstract: Provided is a technique for preventing a loss by storing a universal plug and play (UPnP) control request and delaying handling of the UPnP control request. A method of handling a UPnP control request in a UPnP control point includes storing a UPnP control request that is not handled in the UPnP control point, receiving a message informing that a UPnP control device has participated in a network from the UPnP control device, receiving information about capability of the UPnP control device from the UPnP control device, determining whether the UPnP control device can perform the UPnP control request that is not handled based on the information about capability of the UPnP control device, and transmitting the UPnP control request to the UPnP control device that is determined to be able to perform the UPnP control request.

Abstract: A system and method for exchanging call data between multiple devices using Universal Plug and Play (UPnP) on a home network. The system includes a telephony terminal, a first electronic device, a second electronic device, and a control point for selecting the telephony terminal and the first and second electronic devices for exchanging the call data, for setting a call reception connection between the telephony terminal and the first and second electronic devices, and forming a plurality of sessions for exchanging the call data between the selected telephony terminal and the first and second electronic devices.

Abstract: Method and application server for providing an asynchronous error notification from an application server to an application server controller in a network is provided. The method at the application server includes generating an error message when an error occurs at/during Open Service Gateway initiative (OSGi) framework runtime. The method also includes converting the error message as a Universal Plug and Play (UPnP) event. Moreover, the method includes providing the UPnP event comprising error information to the application server controller. The application server includes a receiver configured to receive a command from an application server controller to install an application in an Open Service Gateway initiative (OSGi) framework available at the application server. The application server also includes a processor configured to generate an error message when an error occurs during installation of the application in the framework and convert the error message as a Universal Plug and Play (UPnP) event.

Abstract: Method and central server for handling of a framework shutdown in a network is disclosed. The method includes generating an event related to a framework shutdown. The method also includes converting the event as a Universal Plug and Play (UPnP) event. The method further includes delivering the converted event to one or more controllers present in the network. The central server includes a processor configured a processor configured to generate an event related to a framework shutdown and to convert the event as a Universal Plug and Play (UPnP) event. The central serve also includes a transmitter configured to deliver the converted event to one or more controllers present in the network.

Abstract: A method of effectively managing information shared by synchronizing between a plurality of Universal Plug and Play (UPnP) devices is provided. According to the method, all devices exchange version information of the devices at initial synchronization, and when shared information stored in some of the devices is changed, a device changing shared information transmits new version information to the other devices via an event message, so that all of the devices can maintain the latest shared information. Also, by having a counter indicating an update state of respective parts of shared information, when shared information is changed by a plurality of the UPnP devices, it is easy to recognize which part from among the respective parts of the shared information is the latest.

Abstract: A system and method for setting up security of a controlled device by a control point in a home network are provided, in which authority to perform a function intended by a user is acquired through authentication between the control point and the controlled device, a security channel is created for performing the function, and a credential setting used by the user is synchronized among controlled devices in the home network.

Abstract: A method is provided for resolving a collision of Internet Protocol (IP) addresses between devices connected to a first server and a second server remotely accessed in a Universal Plug and Play (UPnP) remote access service. The second server receives address information of a network of the first server from the first server. The second server compares address information of a network of the second server with the received address information of the network of the first server, and determines whether a collision has occurred between addresses of the first server and the second server. A collided address is changed when the collision has occurred.

Abstract: A network device having a message receiving module for receiving notify messages transmitted from controlled devices connected in a network, a device list management module for collecting information regarding the controlled devices connected in the network and creating and managing a list of service information of all the controlled devices connected in the network, and a control module for searching for service information of a specific controlled device, which has been requested by a control point, in the device list management module and transmitting the searched information. Since a controlled device has a list of other controlled devices connected thereto in a network, when a message searching for a specific controlled device has been received from a control point, another controlled device can transmit a response message to the control point on behalf of the specific controlled device even though the specific controlled device cannot receive the message from the control point.

Abstract: A unified device management method and system for unified management of a fixed and mobile device includes a command execution controller which receives a device management command, sends a query message to the device, receives a response message transmitted by the device, creates a command execution policy based on the settings contained in the response message, and executes the device management command according to a policy, the device which generates and sends the response message to the command execution controller according to user inputs, and a remote access server which connects the device and the command execution controller by using a remote access protocol.