| Patent application number | Description | Published |
|---|
| 20090180433 | METHOD OF CONTROLLING TRANSMISSION POWER IN A WIRELESS COMMUNICATION SYSTEM - A method of controlling transmission power in a wireless communication system includes allocating persistent radio resources, and transmitting transmission power control information multiplexed with data via a data channel according to the persistent resources. Transmission power can be simply controlled without reducing the capacity of a control channel according to persistent scheduling. | 07-16-2009 |
| 20090186613 | Method of performing random access procedure in wireless communication system - A method includes transmitting a random access preamble, receiving a random access response as a response of the random access preamble, wherein the random access response comprises an uplink resource assignment and a request for transmission of a Channel Quality Indicator (CQI), and transmitting the CQI in the uplink resource assignment. | 07-23-2009 |
| 20090197630 | Method of controlling transmit power of uplink channel - A method of controlling a transmit power of an uplink channel is provided. Downlink control information of which Cyclic Redundancy Check (CRC) parity bits are masked with a TPC identifier is received on a downlink control channel. The transmit power of the uplink channel is adjusted based on a TPC command in the downlink control information. | 08-06-2009 |
| 20110235609 | METHOD AND APPARATUS FOR PERFORMING RANDOM ACCESS IN A MULTI-CARRIER SYSTEM - A method of a user equipment performing random access in a multi-carrier system comprises receiving mapping information through downlink component carriers, sending a random access preamble through uplink component carriers, and receiving a random access response through a specific downlink component carriers determined based on the mapping information. | 09-29-2011 |
| Patent application number | Description | Published |
|---|
| 20100161225 | Method of building map of mobile platform in dynamic environment - Disclosed herein is a method of building a map of a mobile platform moving in a dynamic environment and detecting an object using a 3D camera sensor, e.g., an IR TOF camera sensor, for localization. A localization technology to separate and map a dynamic object and a static object is applied to a mobile platform, such as an unmanned vehicle or a mobile robot. Consequently, the present method is capable of accurately building map information based on the static object in a dynamic environment having a large number of dynamic objects and achieving a dynamic object avoidance or chasing function using position information acquired to build the map. | 06-24-2010 |
| 20100172571 | Robot and control method thereof - Disclosed herein are a feature point used to localize an image-based robot and build a map of the robot and a method of extracting and matching an image patch of a three-dimensional (3D) image, which is used as the feature point. It is possible to extract the image patch converted into the reference image using the position information of the robot and the 3D position information of the feature point. Also, it is possible to obtain the 3D surface information with the brightness values of the image patches to obtain the match value with the minimum error by a 3D surface matching method of matching the 3D surface information of the image patches converted into the reference image through the ICP algorithm. | 07-08-2010 |
| 20110038540 | METHOD AND APPARATUS EXTRACTING FEATURE POINTS AND IMAGE BASED LOCALIZATION METHOD USING EXTRACTED FEATURE POINTS - Disclosed herein are a method and apparatus for extracting feature points using hierarchical image segmentation and an image based localization method using the extracted feature points. An image is segmented using an affinity degree obtained using information observed during position estimation, new feature points are extracted from segmented areas in which registered feature points are not included, and position estimation is performed based on the new feature points. Accordingly, stable and reliable localization may be performed. | 02-17-2011 |
| 20110164792 | FACIAL RECOGNITION APPARATUS, METHOD AND COMPUTER-READABLE MEDIUM - Two-dimensional image information and three-dimensional image information of a subject are acquired, facial recognition is performed using the two-dimensional image information to determine whether a recognized face is a registered user's face, an elliptical model of the user is matched to the three-dimensional image information to calculate an error if it is determined that the recognized face is the user's face, and it is determined whether the user's face is improperly used based on the error. The subject's face is determined using the two-dimensional image information and the three-dimensional image information of the subject and it is determined whether the recognized face is improperly used, thereby improving facial recognition reliability. Thus, information security is improved. | 07-07-2011 |
| 20110164832 | IMAGE-BASED LOCALIZATION FEATURE POINT REGISTRATION APPARATUS, METHOD AND COMPUTER-READABLE MEDIUM - An image-based localization feature point registration apparatus includes a camera to capture an image, a feature point extractor to extract a feature point from the captured image, a calculator to calculate depth information about the feature point according to whether the feature point is one of two-dimensional (2D) and a three-dimensional (3D) corner, and a feature point register to register 3D coordinates of the feature point based on the depth information about the feature point and image coordinates of the feature point. | 07-07-2011 |
| 20110165893 | APPARATUS TO PROVIDE AUGMENTED REALITY SERVICE USING LOCATION-BASED INFORMATION AND COMPUTER-READABLE MEDIUM AND METHOD OF THE SAME - An augmented reality (AR) service apparatus includes a camera to capture an actual image, a controller to receive feature point information about the captured image from at least one of a plurality of base stations (BSs), detect a location of the camera by matching data of feature points with data of the image, and provide location-based information in a same direction as the captured image according to the location of the camera, and a display to realize an AR service by combining the captured image with the location-based information under control of the controller. | 07-07-2011 |
| 20110188708 | THREE-DIMENSIONAL EDGE EXTRACTION METHOD, APPARATUS AND COMPUTER-READABLE MEDIUM USING TIME OF FLIGHT CAMERA - A method of extracting a three-dimensional (3D) edge is based on a two-dimensional (2D) intensity image and a depth image acquired using a time of flight (TOF) camera. The 3D edge extraction method includes acquiring a 2D intensity image and a depth image using a TOF camera, acquiring a 2D edge image from the 2D intensity image, and extracting a 3D edge using a matched image obtained by matching the 2D intensity image and the depth image. | 08-04-2011 |
| 20120076355 | 3D OBJECT TRACKING METHOD AND APPARATUS - A 3D object tracking method and apparatus in which a model of an object to be tracked is divided into a plurality of polygonal planes and the object is tracked using texture data of the respective planes and geometric data between the respective planes to enable more precise tracking. The 3D object tracking method includes modeling the object to be tracked to generate a plurality of planes, and tracking the plurality of planes, respectively. The modeling of the object includes selecting points from among the plurality of planes, respectively, and calculating projective invariants using the selected points. | 03-29-2012 |
| 20120089295 | MOVING ROBOT AND METHOD TO BUILD MAP FOR THE SAME - A moving robot and a method to build a map for the same, wherein a 3D map for an ambient environment of the moving robot may be built using a Time of Flight (TOF) camera that may acquire 3D distance information in real time. The method acquires 3D distance information of an object present in a path along which the moving robot moves, accumulates the acquired 3D distance information to construct a map of a specific level and stores the map in a database, and then hierarchically matches maps stored in the database to build a 3D map for a set space. This method may quickly and accurately build a 3D map for an ambient environment of the moving robot. | 04-12-2012 |
| 20120106828 | MOBILE ROBOT AND SIMULTANEOUS LOCALIZATION AND MAP BUILDING METHOD THEREOF - A simultaneous localization and map building method of a mobile robot including an omni-directional camera. The method includes acquiring an omni-directional image from the omni-directional camera, dividing the obtained omni-directional image into upper and lower images according to a preset reference to generate a first image, which is the lower image, and a second image, which is the upper image, extracting feature points from the first image and calculating visual odometry information calculating visual odometry information to track locations of the extracted feature points based on a location of the omni-directional camera, and performing localization and map building of the mobile robot using the calculated visual odometry information and the second image as an input of an extended Kalman filter. | 05-03-2012 |
| 20120114174 | Voxel map generator and method thereof - A volume cell (VOXEL) map generation apparatus includes an inertia measurement unit to calculate inertia information by calculating inertia of a volume cell (VOXEL) map generator, a Time of Flight (TOF) camera to capture an image of an object, thereby generating a depth image of the object and a black-and-white image of the object, an estimation unit to calculate position and posture information of the VOXEL map generator by performing an Iterative Closest Point (ICP) algorithm on the basis of the depth image of the object, and to recursively estimate a position and posture of the VOXEL map generator on the basis of VOXEL map generator inertia information calculated by the inertia measurement unit and VOXEL map generator position and posture information calculated by the ICP algorithm, and a grid map construction unit to configure a grid map based on the recursively estimated VOXEL map generator position and posture. | 05-10-2012 |
| Patent application number | Description | Published |
|---|
| 20110147643 | METHOD FOR PRODUCING NICKEL-MANGANESE-COBALT SPINEL FERRITE HAVING LOW PERMEABILITY LOSS AND NICKEL-MANGANESE-COBALT SPINEL FERRITE PRODUCED THEREBY - Disclosed herein is a method for producing a spinel ferrite which has a low permeability loss and a low dielectric loss so that the spinel ferrite can be widely used as a material for high-frequency (MHz) electronic components, and a spinel ferrite produced thereby. The method for producing the spinel ferrite comprises the steps of: providing nickel oxide, cobalt oxide, manganese oxide and iron oxide; wet-mixing the nickel oxide, the cobalt oxide, the manganese oxide and the iron oxide in methanol to obtain a mixture; collecting powder from the mixture and drying the collected powder; grinding the dried powder; and heat-treating the dried powder, thereby producing a nickel-manganese-cobalt spinel ferrite having a low permeability loss and a low dielectric loss. The nickel-manganese-cobalt spinel ferrite can be widely as a material for RF electronic components, and when it is applied to an antenna, it can reduce the length of the antenna and improve the bandwidth, efficiency and performance of the antenna. | 06-23-2011 |
| 20110182763 | METHOD OF MANUFACTURING ELECTRONIC COMPONENT FOR RF APPLICATIONS BY SINTERING - Disclosed herein is a method for manufacturing an electronic component comprising a ferrite by sintering. The method comprises the steps of: adding 3 wt% of ammonium alginate to a ferrite to form a mixture, and stirring the mixture while adding water thereto to form a gel; drying the gel at a temperature ranging from 85 ° C to 95 ° C to form a dried material; grinding the dried material to produce a ferrite powder coated with the ammonium alginate; subjecting the ferrite powder to compression molding; and sintering the compression-molded ferrite powder. According to the method, by adding ammonium alginate to the ferrite, the cohesion of the ferrite can be enhanced to facilitate the molding of the ferrite. Also, the magnetic loss tangent of the ferrite can be reduced and the permeability thereof can be increased, thus increasing the efficiency of the ferrite. | 07-28-2011 |
