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Joo, Daejeon-Si
Bheom-Soon Joo, Daejeon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090106773 | Method and system for user-friendly forwarding entry management based on inter-process communication - A method and system for user-friendly forwarding entry management based on inter-process communication (IPC) is provided. The system includes a function input unit inputting a command for forwarding entry management; and an automated process unit verifying parameters included in the function to create a user table, extracting information for creating a forwarding entry management table from the user table, and outputting a forwarding entry management message including the extracted information. The method includes inputting a command for forwarding entry management; verifying parameters included in the command; creating a user table using the parameters if the verification is successful; extracting information for creating a forwarding entry management table from the user table; and outputting a forwarding entry management message including the extracted information. | 04-23-2009 |
| 20090135833 | Ingress node and egress node with improved packet transfer rate on multi-protocol label switching (MPLS) network, and method of improving packet transfer rate in MPLS network system - Provided are an ingress node and an egress node on a Multi-Protocol Label Switching (MPLS) network, with an improved packet transfer rate, and a packet transfer rate improving method in a MPLS network system. By assigning a MPLS label to a destination MAC address of a packet in order to guarantee Quality of Service (QoS), it is possible to distributively transmit packets through a variety of paths on a MPLS network and thus improve a packet transfer rate. | 05-28-2009 |
| 20090154337 | Protection switching method based on change in link status in ethernet link aggregation sublayer - An Ethernet protection switching method based on a change in link status in a link aggregation sublayer is disclosed. If an Ethernet link aggregation sublayer is present on an Ethernet connection path, a link aggregation sublayer Management Entity Group (MEG) end point is assigned to the Ethernet link aggregation sublayer to generate a link aggregation message for Ethernet connection management and protection switching. When a change in link status is detected in the Ethernet link aggregation sublayer, the link-aggregation-sublayer MEG end point generates and sends the link aggregation message to an MEG end point performing Ethernet connection management and protection switching. Adequate Ethernet protection switching may be performed even in the presence of the link aggregation sublayer. | 06-18-2009 |
Hyung Dal Joo, Daejeon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110149200 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device that is capable of preventing the damage to optical sheets and a liquid crystal panel due to vibration and impact is disclosed. The liquid crystal display device includes a liquid crystal panel for controlling transmissivity of liquid crystal to display images, a backlight unit configured to include a plurality of optical sheets for irradiating light to the liquid crystal panel, and a support main for supporting the liquid crystal panel and the backlight unit, the support main having a protrusion curved to prevent the droop of the liquid crystal panel at the middle thereof. With the above construction, it is possible to minimize the friction between the liquid crystal panel and the optical sheets, prevent the formation of wrinkles or scratches at the optical sheets, and prevent the optical sheets from being rubbed. | 06-23-2011 |
In-One Joo, Daejeon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120112960 | ACCESS POINT, MOBILE TERMINAL, GLOBAL NAVIGATION SATELLITE SYSTEM USING THE ACCESS POINT, AND METHOD OF PROVIDING POSITION INFORMATION USING THE ACCESS POINT - An access point (AP), a mobile terminal, a global navigation satellite system (GNSS), and a method of providing position information using the AP are provided. The AP may be equipped with or connected to a GNSS receiver, and the GNSS may precisely determine the position of the mobile terminal using auxiliary satellite navigation information that is generated by the GNSS receiver. | 05-10-2012 |
Seong-Soon Joo, Daejeon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100146151 | ROUTING PATH ESTABLISHMENT APPARATUS AND METHOD IN ZIGBEE NETWORK - An apparatus and method for establishing a routing path in a ZigBee network including a device in sleep mode is provided. The method includes receiving a route request command, and establishing a path with reference to sleep information of a destination device and of all devices located on a path to the destination device. Accordingly, while the devices are allowed to sleep for energy efficiency even in a non-beacon-enabled mode, an ad-hoc on-demand distance vector (AODV)-based mesh routing method which uses a route request command (RREQ) and a route reply command (RREP) can be used as is, and thus the ZigBee network can be utilized in more various application fields. | 06-10-2010 |
| 20100150070 | SENSOR NODE HAVING SELF LOCALIZATION FUNCTION AND SELF LOCALIZATION METHOD THEREOF - Disclosed are a sensor node having a self localization function and a self localization method of the sensor node. The sensor node calculates a location thereof by receiving location information measured at each of two mobile nodes at different times and using four location information of the received location information. Additional cost and power consumption required for installing additional equipment such as an anchor node, a ultrasonic transceiver and a signal amplifier are reduced. | 06-17-2010 |
| 20100153088 | SENSOR NODE INCLUDED IN SENSOR NETWORK, UPDATE SERVER UPDATING THE SAME, AND METHOD OF UPDATING SENSOR NODE - Provided are a sensor node included in a sensor network, an update server updating the sensor node, and a method of updating a sensor node. The update server updating a sensor node included in a sensor network includes an execution code manager managing execution codes for a plurality of sensor nodes included in the sensor network, a rule generator generating an update rule based on a result of comparing an existing execution code managed by the execution code manager with an update execution code required for a new function update of the sensor node, and a downloader causing the sensor node to download the update rule generated by the rule generator. Accordingly, an execution code can be updated by a small amount of data transmission. | 06-17-2010 |
| 20100169691 | APPARATUS AND METHOD FOR DETERMINING OPERATION MODE OF NODE IN AD HOC NETWORK - Provided is a method of determining an operation mode of a node in an ad hoc network. The method includes: monitoring a measured amount of residual energy of the node and comparing the measured amount of residual energy of the node with an amount of residual energy theoretically calculated for the node; identifying an amount of information in a queue included in the node; calculating a relay probability of the node by reflecting the identified amount of information in the queue and the result of comparing the measured amount of residual energy of the node with the theoretically calculated amount of residual energy for the node; and determining the operation mode of the node to be one of a relay mode and a transmission mode, based on the calculated relay probability of the node. The method enables nodes to exchange information about their respective amounts of residual energy and analyze the information without using additional resources and processes. | 07-01-2010 |
| 20110142159 | METHOD AND APPARATUS FOR HYBRID VIRTUAL MIMO TRANSMISSION IN WIRELESS AD-HOC NETWORK - A hybrid virtual multiple-input multiple-output (V-MIMO) transmission method of a management node in a wireless ad-hoc network in which a transmission path from a source node to a destination node is divided into one or more sections is provided. The hybrid V-MIMO transmission method includes obtaining one or more pieces of node information of one or more nodes by transmitting an information request message to the nodes in response to a transmission request message for data transmission from the source node to the destination node; setting a shortest path (SP) from the source node to the destination node based on the obtained node information; determining transmission schemes individually for nodes present on the SP; issuing a transmission preparation request by transmitting the determined transmission schemes to the respective corresponding nodes; and transmitting a transmission start message to the source node in response to transmission ready responses from the respective nodes. | 06-16-2011 |
Yong Jin Joo, Daejeon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100107643 | TRIPLE SWIRL GAS TURBINE COMBUSTOR - Disclosed is a triple swirl gas turbine combustor using various fuels such as coal gas, DiMethyl Ether, and waste gas generated in an ironworks in a gas turbine. The triple swirl gas turbine combustor combusts three different fuels simultaneously or individually and various fuels such as LCV gas and HCV gas so that fuel flexibility can be improved. Swirl generated in a second swirler of the triple swirler is reversely jetted to increase a mixing degree of a fuel-air mixture and an intensity of a turbulent flow so that combustion efficiency can be increased, harmful exhaust gas can be reduced and vibration can be reduced. | 05-06-2010 |