Abstract: A network address translation (NAT) router for connecting an inside network to an outside network. The inside network uses local addresses and has a plurality of voice over Internet protocol (VoIP) systems and a plurality of hosts, and the outside network uses global addresses. An Ethernet driver is connected to Ethernet drivers in the voice over Internet protocol systems by a hub. An Ethernet and Internet protocol (IP) interface module assigns predetermined physical addresses to the Ethernet drivers of the voice over Internet protocol systems. A transmission control protocol/Internet protocol (TCP/IP) module is connected to the Ethernet and Internet protocol interface module and sets a predetermined number of local Internet protocol addresses for the voice over Internet protocol systems. A network address translation module translates an inside local Internet protocol address within a voice over Internet protocol system to a global Internet protocol address.

Abstract: Provided are a packet scheduling system and method capable of fair link resource distribution among a plurality of sessions requesting transmissions to an identical output link in input and output interfaces of a node in a high-speed packet exchange network such as an ATM network or the Internet. The packet scheduling system uses a traffic classifier which classifies traffic input from a plurality of input links, for each session; a central management unit which manages the agreed speed for each session and the virtual time of a system; a virtual finish time calculation unit which in response to the agreed speed and the system virtual time, calculates the virtual finish time of each packet for the traffic and attaches the calculated virtual finish time to the head of the packet as a time stamp.

Abstract: Provided is a method of resource management and call admission control in an access network in a hierarchical manner.

Abstract: Provided are an IP address lookup system and method for forwarding a packet over a data plane of a router. The IP address lookup system includes a forwarding table which has a three-layer table architecture so that it can search for each address group that constitutes an IP destination address of an input packet and a forwarding engine which obtains packet processing information and next hop information for the input packet by searching for the forwarding table using the IP destination address as a search key.

Abstract: Disclosed are an optical module interfacing device for connecting an RJ interface and an SFP type optical module to an SFP type optical module connector without additional processing, and an Ethernet system using the optical module interfacing device, thus supporting data transmission and reception. The optical module interfacing device includes a board having the same dimensions as those of the optical module, a male connector, having the same dimensions as those of the optical module, formed at a side surface of one end of the board to be connected to the female connector for the optical module mounted on a host board, and an RJ female connector provided with a plurality of pins formed on an upper surface of the board, respectively corresponding to pins of the male connector, according to standards. Further, UTP data is provided to MDI supporting ports of a physical layer through an interfacing unit.

Abstract: A linear EMV actuator uses a permanent magnet and an electromagnet in which EMV operation for opening/closing an exhaust valve and an intake valve makes valve operations linear. As a result, the valve undergoes a soft landing and active control of an amount of opening of the valve. The linear EMV actuator includes an upper core and a lower core, an armature, an actuator spring and a valve spring. Also included are a permanent magnet, an upper coil and a lower coil connected to each other in series thereby forming one electromagnet, a displacement sensor, and a position controller.

Abstract: A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status infonnation of a second channel descriptor. Here, the second chanmel descriptor is stored in the MS, Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information.

Abstract: A visited website search system searching a website visited by a user. The visited website search system searching the website visited by the user includes: a mini web server installed in the local computer, receiving a search command with respect to data in the local computer from a web browser according to an HTTP protocol and providing a search result in a web document to the web browser; a searcher generating a search result by searching a website, corresponding to an query included in the search command, among the website visited by user and a web document generator generating the search result in the web document. Accordingly, the visited website by the user may be stably searched according to the HTTP protocol, similar to a web search.

Abstract: The present invention relates to link layer status information using a media independent handover module in a mobile communication system, wherein packet loss attributed to congestion can be identified from packet loss attributed to non-congestion. Preferably, the present invention comprises establishing communication between a mobile terminal and at least one of a homogeneous and heterogeneous network, reporting status information of a radio link connecting the mobile terminal and the at least one of a homogeneous and heterogeneous network to a heterogeneous network handover module of the mobile terminal, and reporting the status information of the radio link from the heterogeneous network handover module to an upper management entity of the mobile terminal if the heterogeneous network handover module determines a predetermined condition is satisfied.

Abstract: The present invention relates to providing mobility management protocol information to a multi-mode mobile terminal for performing handover between heterogeneous networks. Preferably, the present invention establishes a unified interface to an upper layer of the mobile terminal for managing messages to and from at least one of a homogeneous network and a heterogeneous network, establishes a connection with an accessible link of at least one of a homogeneous network and a heterogeneous network for performing handover, and receives in the upper layer information from the unified interface related to the established connection. Preferably, the step of receiving the information includes receiving mobility management protocol information of the at least one of a homogeneous network and a heterogeneous network. Accordingly, the mobile terminal reduces a time duration for establishing a Care of Address (CoA) using a new mobility management protocol of a new network the mobile terminal has been handed over to.

Abstract: A method of performing a handover to at least one of a homogeneous and heterogeneous network is disclosed. More specifically, the method comprises establishing a heterogeneous network handover module for converging information from the at least one network interface module associated with the at least one of a homogeneous and heterogeneous network into a unified presentation. The method further comprises receiving a message for establishing connection by the at least one network interface module in a mobile terminal from the heterogeneous network handover module, performing link switch operation for establishing connection with an interface module in a network, and transmitting a confirmation message for indicating a link switch status to the heterogeneous network handover module.

Abstract: A method of performing a handover with at least one of a homogeneous and heterogeneous network is disclosed. More specifically, the method comprises establishing a heterogeneous network handover module for converging information from the at least one network interface module associated with the at least one of a homogeneous and heterogeneous network into a unified presentation and receiving a message for powering on at least one network interface module in a mobile terminal from the heterogeneous network handover module. The method further comprises performing a power on operation for activating the at least one network interface module and transmitting a confirmation message for indicating a power on operation status to the heterogeneous network handover module.

Abstract: The present invention relates to a mobile terminal for performing a handover to at least one of a homogeneous and heterogeneous network. Accordingly, media independent handover (MIH) is supported, by which a delay attributed to the occurrence of processing during handover between heterogeneous media-independent networks is reduced. Preferably, the present invention comprises at least one network interface module supporting a predetermined air interface, a heterogeneous network handover module configured to provide convergence of information from the at least one network interface module associated with the at least one of a homogeneous and heterogeneous network into a unified presentation, and a management module configured to process the unified presentation communicated with the heterogeneous network handover module to communicate with the at least one network interface module to facilitate handover.

Abstract: The present invention relates to communicating heterogeneous network information for performing a handover to a network. Preferably, the present invention generates a request message from a heterogeneous network handover module to a medium access control (MAC) of the mobile terminal, wherein the heterogeneous network handover module is configured to provide convergence of information from at least one network interface module associated with one of a homogeneous and heterogeneous network into a unified presentation. An information request associated with heterogeneous networks is then transmitted to a serving network, wherein the information request comprises the request message from the heterogeneous network handover module.

Abstract: The present invention relates to performing handover of a mobile terminal to a network. Preferably, the present invention generates a first heterogeneous protocol message from a heterogeneous network handover module to a medium access control (MAC) of the mobile terminal, wherein the heterogeneous network handover module is configured to provide convergence of information from at least one network interface module associated with one of a homogeneous and heterogeneous network into a unified presentation. A management request associated with a handover process is then transmitted to a serving network, wherein the management request comprises the first heterogeneous protocol message. Accordingly, messages can be remotely exchanged via a radio section between heterogeneous network handover modules of a mobile terminal and a serving network. Therefore, messages are transferred faster and media independent handover is performed more quickly.

Abstract: The present invention relates to supporting a handover of a mobile terminal. Preferably, the present invention performs a scan of a neighboring network different from a current network of the mobile terminal to determine the presence of an accessible link of the neighboring network for performing a handover, wherein the mobile terminal comprises a heterogeneous network handover module that is configured to provide convergence of information from at least one network interface module associated with one of a homogeneous and heterogeneous network into a unified presentation. An information message is then received from the neighboring network, wherein the information message comprises an information element associated with whether the neighboring network is capable of communicating with the heterogeneous network handover module of the mobile terminal.

Abstract: A method for controlling an idle mode in a mobile station comprises transmitting an idle mode request to a serving base station to enter the idle mode, and receiving a decode information transmission frame value and a decode information change status from at least one base station. The method also comprises, if the decode information change status indicates a change in the decode information, maintaining the idle mode, and receiving the decode information from the at least one base station when the transmission frame value is reached. The decode information may comprise at least one of downlink channel descriptor (DCD) information, uplink channel descriptor (UCD) information, and forward error correction (FEC) code type information. The transmission frame value may comprise a frame number or a frame offset. The at least one base station may be in a same paging group.

Abstract: A method of updating channel information by a mobile station (MS) that is in power saving mode is disclosed. More specifically, the method includes the MS which receives status information of a first channel descriptor and transmission frame information which includes when the first channel descriptor is to be transmitted. Furthermore, the MS compares status information of the first channel descriptor with status information of a second channel descriptor. Here, the second channel descriptor is stored in the MS. Lastly, if the compared status information are different, the MS receives the first channel descriptor according to the transmission frame information.

Abstract: The present invention relates to supporting media independent handover of a mobile terminal to a heterogeneous network. Preferably, the present invention establishes a unified interface to an upper layer of the mobile terminal for managing messages to and from at least one of a homogeneous network and a neterogeneous network. Furthermore, the present invention requests a scan of a heterogeneous network different from a current network of the mobile terminal via the unified interface to determine the presence of an accessible link of the heterogeneous network for performing the handover.

Abstract: The present invention relates to establishing a network address of a mobile terminal in a mobile communication system when the mobile terminal is handed over from one network to another. Preferably, the present invention establishes a unified interface to an upper layer of the mobile terminal for managing messages to and from at least one of a homogeneous network and a heterogeneous network, performs handover of the mobile terminal to at least one of a homogeneous network and a heterogeneous network, receives in the upper layer a request from the unified interface for establishing a network address of the mobile terminal for the at least one of a homogeneous network and a heterogeneous network for communicating data, and establishes the network address for the at least one of a homogeneous network and a heterogeneous network.