Patent application number | Description | Published |
20120153500 | SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING SEMICONDUCTOR DEVICES - A semiconductor device comprises a top surface having a first contact, a bottom surface having a second contact, a via hole penetrating a substrate, an insulation layer structure on a sidewall of the via hole, the insulation layer structure having an air gap therein, a through electrode having an upper surface and a lower surface on the insulation layer structure, the through electrode filling the via hole and the lower surface being the second contact, and a metal wiring electrically connected to the upper surface of the through electrode and electrically connected to the first contact. | 06-21-2012 |
20120178253 | Method of Manufacturing a Semiconductor Device Having a Porous, Low-K Dielectric Layer - The inventive concept provides porous, low-k dielectric materials and methods of manufacturing and using the same. In some embodiments, porous, low-k dielectric materials are manufactured by forming a porogen-containing dielectric layer on a substrate and then removing at least a portion of said porogen from the layer. | 07-12-2012 |
20140312456 | SEMICONDUCTOR DEVICES AND METHODS OF FABRICATING THE SAME - A semiconductor device can include wiring lines on a substrate and an interlayer insulating structure, between ones of the wiring lines. The wiring lines can include a pore-containing layer that includes a plurality of pores extending away from a surface of the substrate, wherein ones of the pores have respective volumes that increase with a distance from the substrate until reaching an air gap layer above the pore-containing layer and beneath uppermost surfaces of the wiring lines. | 10-23-2014 |
Patent application number | Description | Published |
20090122721 | HYBRID NETWORK DISCOVERY METHOD FOR DETECTING CLIENT APPLICATIONS - A hybrid network discovery method for detecting client applications. The method has the steps of: (a) applying test traffic packets to a network which is to be measured, and analyzing responses so as to check target nodes; (b) transmitting a protocol request packet to each of the checked target nodes; and (c) when the URL of the header of the protocol request packet coincides with a site for a specific application of the target node, extracting the URL and the IP address of the target node. | 05-14-2009 |
20110058481 | DEVICE AND METHOD FOR GENERATING STATISTICAL INFORMATION FOR VOIP TRAFFIC ANALYSIS AND ABNORMAL VOIP DETECTION - A statistical information generator for VoIP traffic analysis is provided, which comprises a packet collection module collecting packets from a network; and a statistical information generation module analyzing information of a call setup packet or a media packet among the packets collected by the packet collection module, and generating statistical information of the network; wherein if the packet collected by the packet collection module is the call setup packet, the statistical information generation module generates the statistical information of the network using at least one of transmitter identification information, receiver identification information, and call identification information among information of the call setup packet as a key value, while if the packet collected by the packet collection module is the media packet, the statistical information generation module generates the statistical information of the network using media session identification information among information of the media packet as a key value. | 03-10-2011 |
20110138462 | SYSTEM AND METHOD FOR DETECTING VOIP TOLL FRAUD ATTACK FOR INTERNET TELEPHONE - Provided is a system for detecting a voice over Internet protocol (VoIP) toll fraud attack. The system includes: a database (DB) storing registration information of normal users; a packet reception module receiving a call set-up packet from a network; and a VoIP signaling message forgery/falsification detection module receiving the call set-up packet from the packet reception module and comparing sender address information or header information of the call set-up packet with the registration information stored in the DB to detect whether the call set-up packet is a packet received from one of the normal users. | 06-09-2011 |
20120036579 | SYSTEM AND METHOD FOR DETECTING ABNORMAL SIP TRAFFIC ON VOIP NETWORK - Provided is a system for detecting abnormal traffic on a network. The system includes: a receiving module which receives session initiation protocol (SIP) traffic information from a network; a decoding module which receives the SIP traffic information from the receiving module and decodes the received SIP traffic information; a traffic information database (DB) which receives the decoded SIP traffic information from the decoding module and stores the received SIP traffic information; an analysis traffic information DB which collects information from the traffic information DB for a predetermined period and stores the collected information as analysis traffic information; a reference traffic information DB which stores reference traffic information; and an attack detection module which compares the analysis traffic information with the reference traffic information and detects whether analysis traffic is attack traffic. | 02-09-2012 |
20120060218 | SYSTEM AND METHOD FOR BLOCKING SIP-BASED ABNORMAL TRAFFIC - Provided is a system for blocking session initiation protocol (SIP)-based abnormal traffic. The system includes: a policy database (DB) in which allowed traffic is stored according to transmission priority; an abnormal traffic response module which receives traffic from a first network and transmits only portions of the received traffic, which match the allowed traffic stored in the policy DB, to a second network in order of transmission priority; and an abnormal traffic detection module which analyzes the traffic received from the first network and provides an activation signal to the abnormal traffic response module when detecting that the received traffic is abnormal traffic, wherein the abnormal traffic response module transmits the portions of the received traffic, which match the allowed traffic stored in the policy DB, to the second network such that the sum of the portions transmitted to the second network does not exceed a maximum allowed traffic limit. | 03-08-2012 |
Patent application number | Description | Published |
20090147759 | METHOD AND APPARATUS FOR SUPPORTING MOBILITY OF NODE USING LAYER 2/LAYER 3 ADDRESSES - Provided is a network-based mobility supporting method for supporting mobility of a node not having a mobility supporting function. The network-based mobility supporting method which is performed by a plurality of agents that connect a plurality of access networks to an Internet protocol core network integrating the plurality of access networks, includes: acquiring address information of a mobile node connected to an access point from the access point; transmitting the address information of the mobile node and layer 3 address information of an agent to a management unit which is located on the Internet protocol core network and manages the plurality of access networks, and registering a location of the mobile node; transmitting the layer 3 address information of the correspondent agent to the mobile node, in order to allow the mobile node to transmit a data packet to the agent; and receiving and transmitting the data packet between the mobile node and a correspondent node in consideration of the address information of the mobile node and information registered in the management unit. Therefore, it is possible to provide high-speed mobility to a mobile node. | 06-11-2009 |
20110255512 | SYSTEM AND METHOD OF CONTROLLING TRANSMISSION OF ADAPTIVE MEDIA IN PERFORMING HANDOVER BETWEEN HETEROGENEOUS ACCESS NETWORKS - A system and method of controlling transmission of adaptive media over handover performed between heterogeneous networks are disclosed. When a mobile terminal moves, it detects the necessity of handover between the heterogeneous networks, determines a target network to which it may perform handover, and transmits handover information to an adaptive media server that controls a transmission rate of adaptive media to previously inform about the handover. Then, the adaptive media adjusts a transmission rate of the adaptive media by using the received handover information, and when the mobile terminal performs handover to the target network, it can receive the adaptive media from the adaptive media server. Accordingly, when the mobile terminal using a real time multimedia service in a wireline/wireless environment in which various accessing techniques are integrated performs handover between heterogeneous networks, a change in quality of experience (QoE) sensed by subscribers due to the handover can be reduced. | 10-20-2011 |
20120033600 | METHOD AND APPARATUS FOR PROVIDING MULTICAST SERVICE FOR MOBILE NODE IN MOBILE COMMUNICATION SYSTEM - A method for providing a multicast service for an MN includes: transmitting, by an MN connected to a first access point within a first access network, multicast information of the MN to an agent of the first access network through the first access point, wherein the multicast information includes information on a multicast source and a multicast group; transmitting and receiving messages between agents according to a predetermined protocol based on the multicast information of the MN transmitted to the agent of the first access network, and setting a multicast path between the multicast source and the MN of the first access network between the agents; transmitting, by the agent of the first access network, the multicast information of the MN to the MICS; and registering, by the MICS, the multicast information of the MN transmitted from the agent of the first network. | 02-09-2012 |
20130235774 | ENERGY-SAVING MOBILE NODE CONTROL METHOD USING WIRELESS MULTI-INTERFACES - Provided is a node control apparatus communicating an external Internet Protocol (IP) network and managing a plurality of mobile nodes included in a local network. The node control apparatus manages information relating to the plurality of mobile nodes, each equipped with one or more wireless interfaces, configures one or more groups by classifying the plurality of mobile nodes according to the type(s) of the wireless interface(s) of each of the plurality of mobile nodes, selects a representative node for each of the groups, and allows the member nodes of each of the groups to communicate with the external IP network via their representative node. Therefore, it is possible to minimize power consumption by selectively using a wireless interface for use in connecting to the representative node of each of the groups. | 09-12-2013 |
20140198706 | MULTICAST SOURCE REGISTRATION METHOD, MULTICAST RECEIVER JOINING METHOD AND MULTICAST SERVICE PROVIDING METHOD DURING HANDOVER - Disclosed are a multicast source registration method, a multicast receiver joining method and a multicast service providing method during handover, in which another mobile node may constantly receive multicast data even when a mobile node performs handover while transmitting multicast data in various mobile networks. According to the present invention, a safe and fast mobility of a network-based multicast source can be provided. | 07-17-2014 |
Patent application number | Description | Published |
20120134313 | ACCESS POINT, L2 SWITCH AND METHOD OF SUPPORTING MULTICAST HANDOVER USING THE ACCESS POINT AND L2 SWITCH - An access point, a layer 2 switch, and multicast handover supporting method using the access point and the layer 2 switch are provided. According to the method of supporting multicast handover, when a mobile node is handed over from one cell to another while being provided with a multicast service in a wireless mobile communication network, the L2 switch performs multicast traffic routing in response to reception of MAC address information and multicast service source and group information from the access point. Hence, multicast traffic can be supported to be fast and seamlessly handed over within layer 2 network equipment. | 05-31-2012 |
20120147889 | APPARATUS AND METHOD FOR VIRTUALIZING MULTIPLE TERMINALS - An apparatus and method for virtualizing multiple terminals are provided. The apparatus includes a terminal virtualizer configured to virtualize a group of a plurality of transmitter terminals of a first user and a group of receiver terminals of a second user through the change of source and destination addresses of a packet that is transmitted between the transmitter terminal group and the receiver terminal group so that the transmitter terminal group and the receiver terminal group may be recognized as if they were single terminals. Accordingly, it is possible to provide seamless IP connectivity regardless of which terminal is currently being used by a to user. | 06-14-2012 |
20130100930 | METHOD AND APPARATUS FOR SUPPORTING NETWORK-BASED FLOW MOBILITY - The present invention relates to a method and apparatus for supporting location registration and mobility for each service flow in relation to a Mobile Node (MN) having a plurality of wired/wireless network interfaces in a wired/wireless integrated network environment. A method includes receiving a location registration message from a specific Handover Control Agent (HCA) connected to an MN, determining a movement of a flow, configured in another HCA to which the MN is connected, based on predetermined static flow binding information or a network status, sending a location registration Ack. message, comprising information on a HCA in which the flow is configured and to which a Corresponding Node (CN) is connected, to the specific HCA, and sending a location notification message, comprising information on the specific HCA to which the flow will be moved and to which the CN is connected, to the HCA. | 04-25-2013 |
20140337430 | METHOD FOR CONTENT TRANSMISSION USING SOCIAL INFORMATION - A method for efficiently transmitting contents on a network is provided. The content transmission method using social information, includes: requesting content registration and social information of a user; allocating, by a social information management node, a multicast address to be used in content transmission based on the content registration information and social information received from a social service provider; transmitting the allocated multicast address to a first access control node to which a first user terminal is connected so as to set the first access control node as a multicast source, in response to a request of the first access control node; and transmitting a response message to a second access control node for setting a multicast transmission path for content transmission between the first access control node and the second access control node when there is a sharing request of the second access control node. | 11-13-2014 |
Patent application number | Description | Published |
20140106959 | METHOD FOR PRODUCING METAL CATALYST FOR PREPARING ALCOHOL AND METAL CATALYST PRODUCED THEREBY - Disclosed is a method for preparing a metal catalyst having improved yield of alcohols. The method for preparing a metal catalyst for the production of alcohol from synthesis gas includes forming a metal catalyst; and irradiating the metal catalyst with gamma rays. The metal catalyst has improved yield of alcohols by stabilizing the metal catalyst through gamma ray irradiation to inhibit generation of hydrocarbons in catalytic reaction with synthesis gas. | 04-17-2014 |
20140134494 | METHOD FOR PREPARING CARBIDE-DERIVED CARBON-BASED ANODE ACTIVE MATERIAL AND ANODE ACTIVE MATERIAL PREPARED BY THE SAME - Disclosed is a method for preparing a carbide-derived carbon-based anode active material. The method includes preparing carbide-derived carbon, and expanding pores of the carbide-derived carbon. Here, expanding of pores is performed as an activation process of heating the prepared carbide-derived carbon in the air. The pores formed inside the carbide-derived carbon can be expanded during the activation process in the preparation of the carbide-derived carbon-based anode active material. In addition, by applying the carbide-derived carbon to an anode active material, lithium secondary battery having improved charge-discharge efficiency can be prepared. | 05-15-2014 |
20150132654 | METHOD OF PREPARING GRAPHENE AND ANODE MIXTURE FOR LITHIUM SECONDARY BATTERY INCLUDING GRAPHENE PREPARED THEREBY - Disclosed herein is a method of preparing porous graphene from porous graphite, including 1) thermochemically reacting a highly crystalline carbide compound with a halogen element-containing gas to give a porous carbide-derived carbon; 2) treating the carbide-derived carbon with an acid, thus preparing a carbide-derived carbon oxide; and 3) reducing the carbide-derived carbon oxide. An anode mixture for a secondary battery including the graphene and an anode for a secondary battery including the anode mixture are also provided. | 05-14-2015 |
20150179355 | STACK-TYPE FLOW ENERGY STORAGE SYSTEM AND METHOD OF CHARGING AND DISCHARGING ENERGY USING THE SAME - Disclosed herein is stack-type flow energy storage system. More particularly, the system includes a stack-type electrode cell composed of fluidic electrode material mixed with an electrolyte and storage tank for the electrode material, thereby remarkably improving stability, output and energy density. The stack-type flow energy storage system is advantageous in that unit cells, each consisting of a cathode, a separation membrane and an anode, are connected in parallel or in series to each other to make a stack cell, thus remarkably increasing output power. Further, the stack-type flow energy storage system is advantageous in that the sizes of slurry storage tanks connected to an electrode cell are adjusted, thus determining the required specification of energy density. | 06-25-2015 |
20150180074 | MANIFOLD FOR REDOX FLOW BATTERY FOR REDUCING SHUNT CURRENT AND REDOX FLOW BATTERY COMPRISING SAME - A manifold for a redox flow battery capable of effectively suppressing a shunt current has a supply flow pathway and an exhaust flow pathway respectively formed at a left side and a right side of an anode or cathode electrode electrolyte reaction unit so as to include a U-shaped curved portion, and the U-shaped curved portion is formed to be positioned on the upper part of the top or the lower part of the bottom of the first electrode electrolyte reaction unit. When the manifold is applied to a redox flow battery, the supply flow pathway and the exhaust flow pathway having the U-shaped curved portion are formed on the upper part of the top or the lower part of the bottom of the electrode electrolyte reaction unit to prevent an electrolyte existing in the inside of a stack and a pipe from passing through the U-shaped curved portion. | 06-25-2015 |