Patent application number | Description | Published |
20100156722 | METHOD AND APPARATUS FOR CONTROLLING RADIATION DIRECTION OF SMALL SECTOR ANTENNA - Disclosed are an apparatus and method for controlling a radiation direction of a small sector antenna, used for a small wireless transmission device having limited power and calculation capabilities, capable of operating at a low power consumption with the necessity of simple calculation capabilities or without the necessity of even a few calculation capabilities. The apparatus for controlling a radiation direction of a small sector antenna includes a plurality of capacitance blocks including a plurality of capacitors each having one end commonly connected to corresponding parasitic elements and having a different capacitance. Capacitors having a capacitance corresponding to a radiation direction are selectively connected to corresponding parasitic elements through a plurality of switching units and a controller, thereby simplifying controlling and reducing power consumption for controlling the radiation direction. | 06-24-2010 |
20100157827 | METHOD FOR IMPROVING ENERGY EFFICIENCY IN WIRELESS MESH NETWORK - A method for effectively using power resource in a wireless mesh network is disclosed to select and change a level of a power saving mode according to terminal and network situations to increase the duration of the network's existence as well as improve the power consumption of each mesh terminal. After active mesh terminals that are to perform a data relay function and super-saving mesh terminals that are not to perform the data relay function are selected in consideration of a network topology at certain periods, the level of a power saving mode of the mesh terminals selected as the super-saving mesh terminals is higher than that of the mesh terminals selected as the active mesh terminals. And then, a routing path in a tree form is formed along the mesh terminals selected as the active mesh terminals to transmit data. | 06-24-2010 |
20100277370 | APPARATUS AND METHOD FOR CONTROLLING RADIATION DIRECTION - Provided are an apparatus and method for controlling a radiation direction. The apparatus includes parasitic elements disposed in proximity to the antenna, wherein each of the parasitic elements comprises an antenna; a first portion that is inclined with respect to a prepared ground surface at a first angle and a second portion that is inclined with respect to the first portion at a second angle; a lumped element having a variable reactance, which is disposed on each of the first and second portions; and a determination unit controlling the reactance of the lumped element so as to determine the radiation direction of the antenna. By using the apparatus and the method, the antenna has various radiation directions. | 11-04-2010 |
20110092244 | AD-HOC WIRELESS COMMUNICATION METHOD USING SECTOR ANTENNA, RECOVERY METHOD IN AD-HOC WIRELESS COMMUNICATION AND AD-HOC WIRELESS COMMUNICATION SYSTEM - Provided are an ad-hoc wireless communication method using a sector antenna, a recovery method in ad-hoc wireless communication, and an ad-hoc wireless communication system. The ad-hoc wireless communication method using a sector antenna according to an exemplary embodiment of the present invention, includes: transmitting a requesting message for setting a communication link while changing transmission power to each sector of the sector antenna; receiving a response message corresponding to the requesting message from a receiving node of each sector; configuring a routing table for the transmission power for each sector based on the received response message; and transmitting data at the transmission power for each sector by referring to the routing table. | 04-21-2011 |
20110130162 | METHOD FOR CLUSTER BASED DATA TRANSMISSION IN WIRELESS SENSOR NETWORKS - The present invention relates to a method for cluster based data in wireless sensor networks. The method includes: selecting any one of border nodes positioned at the edge of a cluster as a temporary cluster head as a temporary cluster head when a target is sensed in the cluster; bugging data of the temporary cluster head by border nodes in other adjacent cluster which do not sense the target to temporarily change the border node selected as the temporary cluster head to a cluster head of each of the border nodes; when the target is sensed by at least one of the border nodes, collecting data from each of the border nodes by the temporary cluster head to transferring the collected data to an actual cluster head of the temporary cluster head; and aggregating the collected data by actual cluster head of the temporary cluster head. | 06-02-2011 |
20110134756 | OPERATING METHOD OF SESOR NETWORK AND NETWORK NODE PROVIDING ROUTING MECHANISM SUPPORTING REAL-TIME TRANSMISSION OF PRIOR INFORMATION - Provided is an operating method of sensor network. The operating method detects upper network nodes of a specific network node. The operating method detects link costs between the specific network node and the detected upper network nodes, respectively. The operating method detects a transmission and reception rate for the detected upper network nodes of the specific network node. The operating method selects one of the detected upper network nodes as a parent node of the specific network node, based on the detected link costs and the detected transmission and reception rate. | 06-09-2011 |
20110176521 | APPARATUS AND METHOD OF TRANSMITTING PACKET OF NODE IN WIRELESS SENSOR NETWORK - Provided is an apparatus and method of transmitting a packet of a node in a wireless sensor network. The apparatus includes a plurality of priority queues, wherein packets to be transmitted to neighboring nodes are stored in each of the priority queues according to transmission priority, and the packets are transmitted according to the priority of each priority queue. Accordingly, a delay of a packet that requires real-time transmission is minimized by using priority queues in a node. | 07-21-2011 |
20120044806 | METHOD FOR NOTIFYING ABOUT/AVOIDING CONGESTION SITUATION OF DATA TRANSMISSION IN WIRELESS MESH NETWORK, AND MESH NODE FOR THE SAME - Provided is a multi-route routing scheme that supports Quality of Service (QoS) in the wireless mesh network. A method of notifying about and avoiding congestion situation in data transmission in a wireless mesh network and a mesh node may also be provided. Data may be differentially transmitted to multiple routes by obtaining a route congestion level existing in a current multi-hop route and thus, data providing a real-time service, such as a video streaming service, may avoid congested routes and may be promptly transmitted. Multiple queues in a mesh node may be divided into divided queues based on a congestion situation of a transmission route in a network and the divided queues may be transmitted through multiple routes and thus, an efficiency of the overall network may increase. | 02-23-2012 |
20130147954 | PARKING LOT MANAGEMENT SYSTEM IN WORKING COOPERATION WITH INTELLIGENT CAMERAS - A parking lot management system that works in cooperation with intelligent cameras is disclosed. The system includes a plurality of intelligent cameras connected to each other via a wired/wireless mesh network, a license plate recognition unit which can recognize a license plate of a vehicle entering and exiting a parking lot, a server for storing and managing information about the vehicle, a parking information board and a vehicle information about the position terminal which provide a user with parking information, and a personal computer for controlling all information. | 06-13-2013 |
20130150090 | APPARATUS AND METHOD FOR PROVIDING LOCATION-BASED SERVICE - Disclosed herein are an apparatus and method for providing a location-based service. The apparatus includes a location-based service server and a wireless communication infrastructure location DB. When a mobile payment service is performed for a member store terminal using a user mobile terminal, the location-based service server receives measurement information about a wireless communication infrastructure and information about the location of the member store from the mobile terminal, and generates information about the location of the wireless communication infrastructure using the received measurement information about the wireless communication infrastructure and the information about the location of the member store. The wireless communication infrastructure location DB stores the generated information about the location of the wireless communication infrastructure. | 06-13-2013 |
20130166138 | VEHICLE INFORMATION TRANSMISSION APPARATUS - Disclosed herein is a vehicle information transmission apparatus. The vehicle information transmission apparatus includes a storage unit for storing pieces of collected vehicle information, transmission grades of the pieces of vehicle information, and grades of user terminals. A control unit performs control such that relevant collected vehicle information is transmitted to a user terminal having a grade corresponding to a transmission grade of the collected vehicle information. A transmission unit transmits the vehicle information to the user terminal in compliance with a control command output from the control unit. | 06-27-2013 |
20130197799 | APPARATUS AND METHOD FOR DETERMINING INDOOR COLLECTION POINTS AND COLLECTING HETEROGENEOUS INFRASTRUCTURE MEASUREMENT INFORMATION - Disclosed herein is an apparatus and method for determining indoor collection points and collecting heterogeneous infrastructure measurement information. The apparatus includes a sensor module unit for sensing a motion and a location. An indoor map DB includes attribute information of an indoor space and an indoor map. A collection route generation unit generates a collection route on the indoor map depending on collection conditions. A collection point determination unit determines a collection point from which the heterogeneous infrastructure measurement information is to be collected on the collection route while moving, based on information of the sensor module unit and the indoor map DB. A heterogeneous infrastructure measurement information collection unit collects heterogeneous infrastructure measurement information from the collection point. An information combination unit generates results of collection by combining the collection point with the heterogeneous infrastructure measurement information at the collection point. | 08-01-2013 |
20130281116 | METHOD AND APPARATUS FOR COMPENSATING ESTIMATED LOCATION OF WIRELESS NETWORK ELEMENTS ESTIMATED FROM INFORMATION COLLECTED BY HETEROGENEOUS TERMINALS - A method and apparatus for compensating an estimated location of a wireless network element from information collected by heterogeneous terminals rae provided. The method may include receiving information on a received signal strength indication (RSSI) of a wireless network element and location information of a heterogeneous terminal from the heterogeneous terminal by a wireless network element positioning server, compensating the information on the RSSI received from the heterogeneous terminal into information on an RSSI received from a predetermined reference terminal, using a difference value model of the RSSI of the wireless network element between heterogeneous terminals, the difference model generated in advance, and estimating a location of the wireless network element using the compensated information on the RSSI from the reference terminal and the received location information. | 10-24-2013 |
Patent application number | Description | Published |
20080307668 | METHODS AND DEVICES FOR DRYING COATED STENTS - Various embodiments of methods and devices for drying coated stents in an oven are described herein. | 12-18-2008 |
20080311280 | METHODS AND DEVICES FOR COATING STENTS - Various embodiments of methods and devices for coating stents are described herein. | 12-18-2008 |
20080312728 | METHOD AND DEVICE FOR ALIGNING A STENT WITH A STENT SUPPORT - A method for aligning a stent with a stent support includes the steps of (1) placing a stent support and a stent mounted on the stent support in a vertically position with the stent support's first support element at a lower position and the stent support's second support element at an upper position; (2) obtaining a digital image of the stent support and stent; (3) analyzing the digital image of the stent support and stent to compute the vertical position of the stent's upper end; (4) computing a desired position of the second support element based on the position of the stent's upper end; and (5) using a positioning device to move the second support element to the desired position. The movement of the second support element causes the conical sections of the first and second support elements to engage the respective ends of the stent to center the stent around a core element of the stent support and to secure the stent in a longitudinal direction of the stent support. | 12-18-2008 |
20080312747 | SYSTEMS AND METHODS FOR THE INSPECTION OF CYLINDERS - A system for inspecting cylinders according to various aspects of the present invention generally includes a roller assembly comprising a plurality of rollers configured to hold the cylinder. A light source illuminates the cylinder and a camera produces an image of at least a portion of the cylinder as the roller assembly rotates the cylinder about its longitudinal axis. A computer system is configured to control the roller assembly, light source, and camera and analyze the image to identify a defect associated with the cylinder. | 12-18-2008 |
20080312869 | METHOD AND APPARATUS FOR WEIGHING A STENT - An apparatus for weighing a stent includes a buffer for storing a stent support with a stent mounted thereon, a stent mounting and dismounting assembly that mounts and dismounts the stent from the stent support, a robotic arm for moving the stent support with the stent between the buffer and the stent mounting and dismounting assembly, and a scale assembly for weighing the stent. The stent mounting and dismounting assembly moves the stent into the scale assembly after the stent has been dismount from the stent support. | 12-18-2008 |
20110007147 | SYSTEMS AND METHODS FOR THE INSPECTION OF STENTS - A system and method for inspecting stents can involve an inspection camera to take an image of the stent and a computer system for analyzing the image to determine the presence of any coating defects. The determination can be made by masking out a portion of the stent, identifying deviations from a strut edge, and/or highlighting features protruding from a stent external boundary defining an outer diameter. The image can be taken after a focus feedback camera determines the position of the stent. | 01-13-2011 |
20110040394 | METHOD AND SYSTEM FOR ALIGNING A STENT WITH A STENT SUPPORT - A system and method of aligning a stent with a stent support involves taking two images of the stent that has been placed on the stent support and determining from the two images whether the stent is aligned with the stent support. The stent can be rotated so that the two images are of different views of the stent. A computer can be configured to receive the images and to determine the whether the stent is aligned. A backlight can be used to take images of the stent in silhouette. A portion of the stent support can be re-positioned based on an image taken of the stent. | 02-17-2011 |
20110148130 | Method and Apparatus for Weighing a Stent - An apparatus for weighing a stent includes a buffer for storing a stent support with a stent mounted thereon, a stent mounting and dismounting assembly that mounts and dismounts the stent from the stent support, a robotic arm for moving the stent support with the stent between the buffer and the stent mounting and dismounting assembly, and a scale assembly for weighing the stent. The stent mounting and dismounting assembly moves the stent into the scale assembly after the stent has been dismount from the stent support. | 06-23-2011 |
20110217450 | Method for Coating Stents - A method for coating a stent can involve a device having a drying zone, a spray zone, and movable member for positioning a stent in the drying zone and another stent in the spray zone. Each stent can be on a support. A force can be applied to the outside surface of a stent to prevent rotation of the stent with respect to the support. | 09-08-2011 |
20120013732 | SYSTEMS AND METHODS FOR INSPECTION OF STENTS - A system and method for inspecting stents can involve an inspection camera to take an image of the stent and a computer system for analyzing the image to determine the presence of any coating defects. The determination can be made by masking out a portion of the stent, identifying deviations from a strut edge, and/or highlighting features protruding from a stent external boundary defining an outer diameter. The image can be taken after a focus feedback camera determines the position of the stent. | 01-19-2012 |
20140150282 | Device for Drying Coated Stents - Various embodiments of methods and devices for drying coated stents in an oven are described herein. | 06-05-2014 |
20140299054 | METHODS AND DEVICES FOR COATING STENTS - Various embodiments of methods and devices for coating stents are described herein. | 10-09-2014 |
Patent application number | Description | Published |
20090150699 | SLEEP SCHEDULING METHOD BASED ON MOVING DIRECTIONS OF TARGET IN SENSOR NETWORK - Provided is a sleep scheduling method based on directions of a target in a sensor network. A track subregion is set as an oval shape that is in proportion to a probability of the target moving in certain directions so as to track the target, and sleep patterns of sensor nodes in the tracking subregion are scheduled in consideration of a probability of the target moving in certain directions. As such, the energy efficiency of each sensor node in the sensor network can be improved. | 06-11-2009 |
20090154395 | WIRELESS SENSOR NETWORK HAVING HIERARCHICAL STRUCTURE AND ROUTING METHOD THEREOF - A network having a hierarchical structure includes a plurality of clusters. Each of the clusters includes a plurality of nodes and a cluster head connected to the nodes in a mesh format. Each of the nodes is connected to other clusters via the cluster head. | 06-18-2009 |
20090154482 | ROUTING METHOD IN SENSOR NETWORK - Provided is a routing method capable of expanding a conventional tree routing to perform the efficient and safe key management in a sensor network environment that requires the symmetric key based key management. Each sensor node transmits a Route Reverse message to a sink node to set a reverse tree routing path. Therefore, it is possible to provide efficient and safe key management mechanism and communication environment by providing a bidirectional communication between a sink node and sensor nodes through an expanded tree routing such that a user is provided with a safe sensor network. | 06-18-2009 |
20090207769 | METHOD AND APPARATUS FOR SCHEDULING TIMING FOR COMMUNICATION BETWEEN SENSOR NODES IN WIRELESS SENSOR NETWORK - Provided is a method of scheduling timing for communication between sensor nodes in a wireless sensor network, the method including categorizing a plurality of sensor nodes in a cluster into several groups, respectively assigning time slots to the groups, and establishing data communication according to the assigned time slots. | 08-20-2009 |
20100054234 | SIMULATION APPARATUS AND METHOD USED FOR SENSOR NETWORK - Provided are a simulation apparatus and method used to simulate a sensor network. A sensor node of a real node is reflected in a simulation, and bidirectional communication is performed between a real node and a virtual node, in order to reflect a real environment and a simulation environment in each other and make the real node and the virtual node consistent with each other, thereby performing simulation. | 03-04-2010 |
20100090823 | HYBRID CLUSTERING BASED DATA AGGREGATION METHOD FOR MULTI-TARGET TRACKING IN WIRELESS SENSOR NETWORK - Provided are a sensor network structure, a data aggregation method, and a clustering method for efficient multi-target tracking. The multi-target tracking may be efficiently performed in a heterogeneous sensor network by combining clustering methods and adaptively varying the clustering methods. As such, an energy consumption problem in a sensor network may be reduced, and a data transmission delay problem or a data traffic problem may be solved by reducing the amount of data to be transmitted. | 04-15-2010 |
20110131320 | APPARATUS AND METHOD OF DYNAMICALLY MANAGING SENSOR MODULE ON SENSOR NODE IN WIRELESS SENSOR NETWORK - Provided is an apparatus and method of dynamically managing a sensor module on a sensor node in a wireless sensor network. The apparatus includes an update unit, a request unit, and a transmission unit. If a change occurs in sensor data corresponding to each sensor node stored in a sensor information storage server, the update unit receives the sensor data from the sensor information storage server, and transmits the received sensor data to the corresponding sensor node. The request unit requests the sensor data from the sensor information storage server upon receipt of a sensor data request message from the sensor node. The transmission unit receives the requested sensor data from the sensor information storage server and transmits the received sensor data to the sensor node. | 06-02-2011 |
Patent application number | Description | Published |
20120095673 | APPARATUS AND METHOD FOR PROVIDING DRIVING INFORMATION FOR VEHICLES BASED ON HIGH SPEED MOVEMENT LONG DISTANCE IMPUSE RADIO ULTRA WIDEBAND - An apparatus for providing driving information for a vehicle based on high speed movement long distance impulse radio-ultra wideband (IR-UWB) is provided. The apparatus includes an IR-UWB module configured to generate a packet based on high speed movement long distance IR-UWB, transmit the generated packet, and interpret a received packet and a controller operationally coupled to the IR-UWB module. The controller is configured for the step of estimating a distance between an own vehicle and a different vehicle, estimating a relative location of the own vehicle with respect to the different vehicle based on the distance and generating driving information including the distance and the relative location. | 04-19-2012 |
20120122475 | METHOD AND APPARATUS FOR ESTIMATING POSITION OF ACCESS POINT IN WI-FI SYSTEM - A method and apparatus for estimating a position of an access point (AP) in a Wi-Fi system is provided. The method includes measuring a strength of a signal, transmitted by the AP, at three or more measurement points (MPs), selecting an imaginary attenuation factor, calculating a range between the AP and each of the MPs on the basis of the imaginary attenuation factor and a strength of a signal measured at the MP, calculating an intersecting point of ranging circles in each of which a position of the MP is a center and the range between the MP and the AP is a radius, calculating a best intersecting point from among a plurality of the intersecting points obtained by repeating the calculating the range and the calculating the intersecting point of ranging circles while changing the imaginary attenuation factor, and estimating the best intersecting point as the position of the AP. | 05-17-2012 |
20120127318 | SURVEILLANCE SYSTEM USING WIRELESS NETWORK, MASTER SENSOR NODE, AND SERVER APPARATUS - A surveillance system includes a sensor node, a master sensor node and a server. The sensor node firstly determines whether an event occurs based on self-event information and supplementary event information received from the plurality of sensors. The master sensor node receives the occurrence of the event from the sensor node, and secondly determines whether the event occurred based on the self-event information and the supplementary event information. The server receives whether the event occurs from the master sensor node. The occurrence of the event can be autonomously detected and determined among the sensor node, the master sensor node, and the server. | 05-24-2012 |
20120166012 | POWER SUPPLY CONTROL METHOD, A POWER MANGEMENT METHOD, AND A POWER SYSTEM - A power supply control method, a power management method, and a power system are provided. The power supply control method according to an aspect of the present invention includes: receiving information on a position and a battery of a vehicle; and supplying power to a charging station in the predetermined range of the position of the vehicle to be able to charge the battery of the vehicle based on the information on the position and the battery. | 06-28-2012 |
20140240174 | METHOD AND APPARATUS FOR DETERMINING NON-LINE OF SIGHT (NLOS) AROUND A GPS RECEIVER - Provided are a method and device for determining a non-line of sight (NLOS) state around a GPS receiver. The method may include collecting, from at least one satellite, satellite information including a direction angle, a signal to noise (SNR), and an altitude, selecting a satellite of which the NLOS state is to be determined based on an altitude value of the collected satellite information, and determining whether the selected satellite is in the NLOS state with respect to a direction to the satellite based on the SNR and direction angle included in the satellite information of the selected satellite. According to the present invention, by reducing a location calculation error that occurs due to a distance measurement error when a location is measured, a more precise result of location measurement can be obtained. | 08-28-2014 |