Abstract: The present invention relates to a proxy apparatus and to a caching method of same. The caching method of the proxy apparatus according to one embodiment of the present invention includes the steps of: receiving a transmission request for content that can be divided into a plurality of blocks and instruction information for the playback position of the content from an external device; obtaining a header block that includes the header of the content when receiving the transmission request; identifying an intermediate block that corresponds to the playback position using the header; requesting and obtaining the intermediate block through a network when the identified intermediate block is not cached in the proxy apparatus; and transmitting to the external device at least a portion of the header and at least a portion of the intermediate block corresponding to the request.

Abstract: The present invention relates to a system for measuring lower extremity muscle strength, and more particularly, to a system for measuring lower extremity muscle strength which can effectively measure or train lower extremity muscle strength by means of a simpler method.

Abstract: A method and a system for establishing a local routing in a mobile communication network, and for allowing different mobile stations connected with the same Access Service Network GateWay (ASN GW) to transmit and receive traffic without delivering such traffic to a Home Agent (HA) are provided. In the method, a session server determines whether first and second mobile stations are connected with the same ASN GW by using their location information. In case of a connection with the same ASN GW, the session server establishes a local routing in the ASN GW so that traffic between the first and second mobile stations is directly routed to each other at the ASN GW. Then the ASN GW receiving the traffic from one of both mobile stations transmits the traffic to the other according to the local routing.

Abstract: The present invention relates to a system for measuring lower extremity muscle strength, and more particularly, to a system for measuring lower extremity muscle strength which can effectively measure or train lower extremity muscle strength by means of a simpler method.

Abstract: Disclosed is an apparatus for providing a wireless data communication service using Internet protocol. The apparatus includes a connection manager (CM) which periodically receives network information from a base station, and updates and stores the received network information; and an application unit which receives preset network information according to each application among the network information from the connection manager, and performs a function according to each application.

Abstract: The present invention relates to a proxy apparatus and to a caching method of same. The caching method of the proxy apparatus according to one embodiment of the present invention includes the steps of: receiving a transmission request for content that can be divided into a plurality of blocks and instruction information for the playback position of the content from an external device; obtaining a header block that includes the header of the content when receiving the transmission request; identifying an intermediate block that corresponds to the playback position using the header; requesting and obtaining the intermediate block through a network when the identified intermediate block is not cached in the proxy apparatus; and transmitting to the external device at least a portion of the header and at least a portion of the intermediate block corresponding to the request.

Abstract: A femto base station of a WiMAX system can manage a list of closed subscriber groups (CSGs). A CSG indicator is broadcast. The femto base station receives a registration request message from a mobile station having received the CSG indicator and adds the mobile station to a CSG registration list. The femto base station searches for the mobile station from the CSG registration list if an attach request message is received; and forwards the attach request message to an access service network (ASN) gateway if the mobile station is in the CSG registration list. The femto base station establishes a link message with the mobile station if an attach acceptance message corresponding to the attach request message from the ASN-gateway.

Abstract: A handover method at a source eNB (enhanced Node B) of a mobile communication system is provided. The method includes, in case a request message for providing content is received from UE (User Equipment), checking whether the content is stored in a cache thereof, and therefore transmitting the content to the UE, in case a handover request message is received from the UE, transmitting a content confirmation request message, which requests confirmation of whether the content is stored in a cache, to a target eNB to which the UE is to be handed over, and in case a content confirmation response message is received from the target eNB, transmitting context information, which is information about contents offered to the UE, to the target eNB.

Abstract: Disclosed is an apparatus for providing a wireless data communication service using Internet protocol. The apparatus includes a connection manager (CM) which periodically receives network information from a base station, and updates and stores the received network information; and an application unit which receives preset network information according to each application among the network information from the connection manager, and performs a function according to each application.

Abstract: A femto base station of a WiMAX system can manage a list of closed subscriber groups (CSGs). A CSG indicator is broadcast. The femto base station receives a registration request message from a mobile station having received the CSG indicator and adds the mobile station to a CSG registration list. The femto base station searches for the mobile station from the CSG registration list if an attach request message is received; and forwards the attach request message to an access service network (ASN) gateway if the mobile station is in the CSG registration list. The femto base station establishes a link message with the mobile station if an attach acceptance message corresponding to the attach request message from the ASN-gateway.

Abstract: A method and a system for establishing a local routing in a mobile communication network, and for allowing different mobile stations connected with the same Access Service Network GateWay (ASN GW) to transmit and receive traffic without delivering such traffic to a Home Agent (HA) are provided. In the method, a session server determines whether first and second mobile stations are connected with the same ASN GW by using their location information. In case of a connection with the same ASN GW, the session server establishes a local routing in the ASN GW so that traffic between the first and second mobile stations is directly routed to each other at the ASN GW. Then the ASN GW receiving the traffic from one of both mobile stations transmits the traffic to the other according to the local routing.

Abstract: An X-ray mask is integrated with a micro-actuator. The X-ray mask includes a mask portion, a mask holder portion, at least one elasticized supporter and a micro-actuator unit. The mask portion has a thin shuttle mass and an X-ray absorber attached on the shuttle mass. The mask holder portion is formed around the mask portion with a predetermined distance maintained therebetween. The elasticized supporter connects the mask portion and the mask holder portion elastically. The micro-actuator unit is prepared between the mask portion and the mask holder portion to precisely control a position of the mask portion when a voltage is applied.