Patent application number | Description | Published |
20090147794 | METHOD AND SYSTEM FOR SERVING MULTI-MEDIA DATA BETWEEN HETERO UPnP NETWORKS - Provided is a method and system for streaming multimedia data between hetero UPnP networks configured of a private network. The method comprises establishing a communication channel with a relay peer; establishing a virtual communication channel with a specific extensible home connector selected from a plurality of extensible home connectors connected with the relay peer; searching multimedia data to play from multimedia data in the specific extensible home connector which exists on the UPnP network through the virtual communication channel; establishing a communication environment through the UPnP internet gateway of the specific extensible home connector in case of demanding play of the searched multimedia data; and receiving multimedia data from the specific extensible home connector through the communication environment. | 06-11-2009 |
20090157814 | Method and apparatus for providing social networking service based on peer-to-peer network - A Peer-to-Peer (P2P) based social networking service method for providing a social networking service, includes transmitting a request to a peer group and performing a group-based social networking service; transmitting news or a question to peers in the peer group, and then receiving a response to the question; and storing the received information in a storage medium, and uploading specific information among the stored to a rendezvous peer. The method further includes delivering the uploaded specific information to another rendezvous peer in a network. A P2P based social networking service system includes a P2P middleware unit for providing services of communicating between and grouping the peers; a P2P service application program interface layer for providing a network element function; and a P2P application service layer for calling the network element function, if required, to thereby provide a user with a P2P based network service. | 06-18-2009 |
20090157829 | Peer-to-peer service system and method using e-mail service - A peer-to-peer service method and system are provided. The peer-to-peer service method include advertising E-mail address information and service and sharing resource information through a peer-to-peer network at peers, determining whether a peer requesting a service and a peer providing the service are in online state or in offline state on the peer-to-peer network, and providing a peer-to-peer service through an E-mail server when the peer requesting the service or the peer providing the service is in offline state. The peer-to-peer service system and method using an E-mail service are capable of providing a variety of P2P services (e.g., a message exchange, a file exchange, a remote control, etc.) to peers, which are in online state or temporarily in offline state, by using the E-mail in the P2P network environment which manages the connection information of the peers joined to the corresponding service or the indexes of the sharing resources. | 06-18-2009 |
20090157886 | DYNAMIC UI SYSTEM AND METHOD FOR REMOTELY CONTROLLING LEGACY DEVICE - A dynamic user interface (UI) system and method is provided for remote controlling of a legacy device, which is not compatible with a peer-to-peer (P2P) middleware, through a P2P network. The dynamic UI system of the present includes at least one legacy device, a proxy for registering and managing the at least one legacy device and supporting a dynamic remote control user interface using a multi legacy device control protocol, and an edge peer for downloading the dynamic remote control user interface from the proxy and requesting control of the at least one legacy device to the proxy. | 06-18-2009 |
20090158041 | METHODS AND DEVICES FOR CREATING SECURITY GROUP AND AUTHENTICATION OVER P2P NETWORK - A method of creating a security group over a Peer-To-Peer (P2P) network is disclosed. An invitee terminal attaches a public key to a peer advertisement in which its own identification information is encrypted using its own private key, and then sends a resulting peer advertisement over the P2P network. An inviter terminal, which has found the peer advertisement, encrypts a group advertisement, including group information about the security group, using public keys of the corresponding invitee terminal, and then sends a resulting group advertisement to the invitee terminal desired to be invited to the security group. The invitee terminal decrypts the group advertisement using its own private key, and participates in the security group using the group information. | 06-18-2009 |
20090158394 | SUPER PEER BASED PEER-TO-PEER NETWORK SYSTEM AND PEER AUTHENTICATION METHOD THEREOF - Provided are a super peer based P2P network system and a peer authentication method thereof. The authentication method includes a first authentication process and a second authentication process. In the first authentication process, a user and a peer which want to use a P2P network are verified by submitting authentication information and a public key infrastructure (PKI) certificate, and receive the permission of connection. In the second authentication process, a user and a peer requesting the use of a specific service are authenticated by using an authentication ticket and a service access-permitted time is limited in order to reinforcing the security of the specific service, which is searched in the P2P network and provided by the peer. Accordingly, the service providers can verify users more securely and limit the service available time of each user with respect to a specific service provided by the peer by using the lifetime of the ticket. | 06-18-2009 |
20090257365 | METHOD OF DISTRIBUTING FILES OVER NETWORK - The present invention discloses a method of distributing files over a network, which can attain a proper balance of transfer rates of active spanning trees used between a transmitting node and a receiving node and minimize the time taken for transferring a large file in a P2P (Peer-to-Peer) environment by forming an optimal set of distribution trees with reference to the link costs between the transmitting node and the receiving node and distributing chunk files through the optimal set of distribution trees. The method comprises the steps of: forming a set of spanning trees between a transmitting node and a receiving node and forming a minimum cost tree group by the sum of the link costs of links constituting each of the spanning trees; adjusting the transfer rate of each spanning tree belonging to the minimum cost tree group in accordance with the link cost of each spanning tree belonging to the minimum cost tree group; and transferring chunk files through the spanning trees whose transfer rate is adjusted. | 10-15-2009 |
20100135296 | METHOD AND APPARATUS FOR MULTICASTING CONTENTS BETWEEN DEVICES IN NETWORKS - An apparatus for multicasting contents between devices in different networks includes: a home-to-home multicast control device for finding the devices in the networks, downloading contents from a device in a network to which the home-to-home multicast control device belongs, processing the contents to generate file blocks, each file block having chunk files, and multicasting the processed contents to the devices in the networks; and at least one home-to-home multicast bridge device for receiving the contents transmitted from the home-to-home multicast control device and streaming the contents to one or more devices in a network to which the home-to-home multicast bridge device belongs. The apparatus further includes a multicast relay device for relaying the contents between the home-to-home multicast control device and the home-to-home multicast bridge device. | 06-03-2010 |
20100138494 | CONTENT REDISTRIBUTION SYSTEM BASED ON PEER-TO-PEER NETWORK AS WELL AS CONTENT MANAGEMENT TERMINAL AND ITS CONTENT DISTRIBUTION METHOD - A content redistribution system based on a peer-to-peer (P2P) network includes: a content management terminal that, being a peer of the P2P network, decides for redistribution of contents based on characteristic information included in the contents received via a heterogeneous network; and peer terminals to which are distributed the contents decided for redistribution according to data transmission regulations in a community group on the P2P network. | 06-03-2010 |
20100138552 | EDGE PEER DEVICE, PAN GATEWAY DEVICE, SUPER PEER DEVICE, AND P2P NETWORK-BASED INTERCONNECTION METHOD - An edge peer device, includes a first peer device connection management unit for allowing the edge peer device to participate in a peer-to-peer (P2P) network, and establishing a pipe connection to other edge peer device or the PAN gateway device to transmit or receive contents; a first peer device authentication unit for performing authentication of the edge peer device and PAN gateway device; and a first advertisement management unit for generating and storing advertisements and indexing the generated advertisements to transmit the indexed advertisements to the super peer device. Further, the edge peer device includes a first PAN device management unit for requesting and receiving a list of PAN devices from the PAN gateway device to manage the PAN device list; a first PAN service management unit for managing and providing services included in the PAN device list; and a first P2P communication unit for performing P2P communication with the super peer device and other peer devices. | 06-03-2010 |
20100138650 | SECURE COMMUNICATION SYSTEM, GATEWAY APPARATUS AND ITS OPERATING METHOD - A secure communication system includes: an external peer terminal for generating a security group and participating in the security group by connecting to a peer-to-peer (P2P) network; and a legacy terminal connected to a local area network. The system further includes a gateway apparatus, connected to both of the P2P network and the local area network, for enabling the legacy terminal to participate in the security group. | 06-03-2010 |