Abstract: The present disclosure provided are a variable focus spectacle and a method of driving the same methods. In accordance with an embodiment of the present disclosure, the variable focus spectacle includes a spectacle frame; a pair of lenses mounted on the spectacle frame, and having a plurality of refractive indexes that varies in sequential order by an applied voltage including at least two different power levels; and a refractive index adjuster for supplying the applied voltage to the pair of lenses, wherein the refractive indexes of the pair of lenses is varied at least twice per unit time according to the at least two different power levels.

Abstract: Provided are a mobile-based personal content protection apparatus and method, in which a user sets a mobile terminal to prevent another user from photographing and using personal content with a camera included in the mobile terminal. The mobile-based personal content protection apparatus may include a camera view estimator, a peripheral information receiver, a personal content detector, and a personal content masking unit. A view which is to be photographed by a user is estimated in a space where photographing is allowed by using sensor information included in a mobile terminal, information about whether to allow photographing by each mobile device is collected by cooperating all mobile terminals in a camera view, and a disallowed area is masked in photographing, thereby fundamentally protecting personal content.

Abstract: A method for removing the fluorine component from waste water which is produced during the manufacturing process of highly reactive polybutene and contains high concentration of fluorine component, is disclosed. The method comprises a step of adding to the waste water a treating agent selected from a group of Al compound, Ca compound and mixture thereof at temperature of 50 to 300° C. for reaction, whereby boron trifluoride neutralized salt is decomposed to form Al salt or Ca salt of fluorine component so that the fluorine component is removed in the form of the Al salt or the Ca salt of fluorine component.

Abstract: An augmented reality device based on recognition of a spatial structure includes: a point cloud normal vector extracting unit extracting a normal vector for a point cloud from image data input from a camera; a plane object segmenting unit segmenting a plane in the image data by using the extracted normal vector; a representative plane selecting unit selecting a representative plane among the segmented planes; a spatial structure extracting unit recognizing a spatial structure by using the representative plane; and a virtual object matching unit matching a virtual object in the recognized spatial structure.

Abstract: An augmented reality-based hand interaction apparatus and method using image information. The augmented reality-based hand interaction apparatus using image information includes an object recognition module configured to extract feature points from an input color image, recognize an object which is a target of interest based on the extracted feature points, and estimate a three-dimensional (3D) posture of the recognized object, and an interaction module configured to extract 3D mesh information from an input depth image, match 3D coordinates of the extracted 3D mesh information with 3D coordinates of the object recognized by the object recognition module to extract 3D position information of the recognized object in 3D space, and detect whether or not an augmented 3D object and the recognized object collide with each other based on relative positional relationship information between the recognized object and the augmented 3D object.

Abstract: The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier.

Abstract: An augmented reality device based on recognition of a spatial structure includes: a point cloud normal vector extracting unit extracting a normal vector for a point cloud from image data input from a camera; a plane object segmenting unit segmenting a plane in the image data by using the extracted normal vector; a representative plane selecting unit selecting a representative plane among the segmented planes; a spatial structure extracting unit recognizing a spatial structure by using the representative plane; and a virtual object matching unit matching a virtual object in the recognized spatial structure.

Abstract: A providing apparatus for an augmented reality service includes: a parameter calculating unit calculating camera parameters of a plurality of respective cameras; a mesh information processing unit converting point cloud information based on images obtained from the plurality of respective cameras into mesh information for the plurality of respective cameras and converting the mesh information into a world coordinate for a target space photographed by the plurality of cameras by using the camera parameters; a map generating unit generating a whole map for the target space by considering an area where the converted mesh information for the plurality of respective cameras is duplicated; and an augmentation processing unit augmenting a virtual object to the whole map.

Abstract: A method for efficiently performing an initial access in an MS in a multi-carrier broadband wireless access system is disclosed. The method includes scanning a plurality of carriers supported by a BS, and selecting one of the scanned carriers as a first carrier and receiving an SFH of the first carrier. The SFH of the first carrier includes at least one of a field indicating load status of the first carrier and recommended network entry carrier information including information about a second carrier in good load status.

Abstract: A resistive switching memory device using a brownmillerite-structured material, the resistive switching memory device comprises a first electrode comprising an oxide electrode; a resistive switching unit that is disposed on the first electrode and comprises a thin-film of a brownmillerite structured oxide; and a second electrode that is disposed on the resistive switching unit. Furthermore, the resistive switching unit has a structure in which an octahedron structure layer and a tetrahedron structure layer are sequentially stacked.

Abstract: Provided are a method and device for ranging in a wireless communication system. A machine-to-machine (M2M) device receives an advanced air interface-system configuration descriptor (AAI-SCD) message including information on a dedicated ranging channel for the M2M device and an M2M parameter change count from a base station, and attempts ranging through the dedicated ranging channel to the base station. At this point, the M2M parameter change count orders information on the dedicated ranging channel in the AAI-SCD message to change.

Abstract: An apparatus for extracting a person region based on a red/green/blue-depth (RGB-D) image includes a data input unit configured to match an input RGB image and depth image and output matched RGB-D image data, a region-of-interest (ROI) extractor configured to remove a background image from the matched RGB-D image data from the data input unit, extract an approximate region of a person from an image obtained by removing the background image, and extract an ROI by applying a preset three-dimensional (3D) human model to the approximate person region, a depth information corrector configured to analyze the degree of similarity between the matched RGB image and depth image for the ROI extracted by the ROI extractor and correct the depth image, and a person region extractor configured to extract a person region from the depth image corrected by the depth information corrector.

Abstract: An augmented reality-based hand interaction apparatus and method using image information. The augmented reality-based hand interaction apparatus using image information includes an object recognition module configured to extract feature points from an input color image, recognize an object which is a target of interest based on the extracted feature points, and estimate a three-dimensional (3D) posture of the recognized object, and an interaction module configured to extract 3D mesh information from an input depth image, match 3D coordinates of the extracted 3D mesh information with 3D coordinates of the object recognized by the object recognition module to extract 3D position information of the recognized object in 3D space, and detect whether or not an augmented 3D object and the recognized object collide with each other based on relative positional relationship information between the recognized object and the augmented 3D object.

Abstract: A method for efficiently updating system information of a base station at a relay station of a broadband wireless access system and an apparatus for performing the method are disclosed. The method for updating system information of an advanced base station (ABS) at an advanced relay station (ARS) of a broadband wireless access system comprises receiving a first message, which includes changed information of the system information of the base station, from the base station; transmitting a second message for acknowledgment of the first message to the base station; and performing application for the changed information.

Abstract: A method for efficiently performing an initial access in an MS in a multi-carrier broadband wireless access system is disclosed. The method includes scanning a plurality of carriers supported by a BS, and selecting one of the scanned carriers as a first carrier and receiving an SFH of the first carrier. The SFH of the first carrier includes at least one of a field indicating load status of the first carrier and recommended network entry carrier information including information about a second carrier in good load status.

Abstract: A method for updating a group traffic key used for encrypting and decrypting multicast data in a wireless communication system is described. The method includes receiving, from the base station, a first message comprising a new group security seed; and updating the group traffic key based on the new group security seed.

Abstract: The present invention relates to a multi-carrier resource utilization method and apparatus for power saving in a communication system using a multi-carrier, in which the activation of a secondary carrier for transmitting and receiving data traffic between a terminal and a base station is determined according to the QoS (Quality of Service) requirements such as a data traffic status between the terminal and the base station, a maximum sustained traffic rate, a maximum traffic burst size, or the like, and an indication message (Indication) indicating this is transferred to the terminal through a primary carrier to transmit and receive data traffic through the activated secondary carrier.

Abstract: A method for efficiently performing an initial access in an MS in a multi-carrier broadband wireless access system is disclosed. The method includes scanning a plurality of carriers supported by a BS, and selecting one of the scanned carriers as a first carrier and receiving an SFH of the first carrier. The SFH of the first carrier includes at least one of a field indicating load status of the first carrier and recommended network entry carrier information including information about a second carrier in good load status.

Abstract: The apparatus for displaying a surveillance area includes: a data receiving unit receiving position information of a camera and data on a photographed image of the camera; a panorama image generating unit generating a panorama image for surrounding of a position of the camera using a surrounding image of the position of the camera; a matching information calculating unit calculating first matching information between the panorama image and the photographed image of the camera and second matching information between a map associated with the panorama image and a geographic information system map; a surveillance area estimating unit estimating the surveillance area of the camera on the basis of the first matching information and the second matching information; and a surveillance area displaying unit displaying the estimated surveillance area on the geographic information system map.

Abstract: A device including a display such as a touch screen is provided. The device includes a communication unit configured to obtain movement information of a user, a display unit configured to move a cursor displayed on the display or touch screen in accordance with the movement information of the user, and a controller configured to determine coordinates where the cursor and/or moved cursor is located as dwell start coordinates and determine the dwell start coordinates as touch coordinates when the cursor is located within a reference distance from the dwell start coordinates during an entire reference time starting from a point in time when the cursor is moved to the dwell start coordinates.