Abstract: A system, apparatus, and method of preventing a collision of a remote-controlled mobile robot are disclosed. The system includes a mobile robot transmitting image data taken by a camera mounted on the mobile robot and moving in accordance with received control data, and a control appliance receiving and analyzing the image data, displaying the analyzed result on a screen, and transmitting the control data to the mobile robot.

Abstract: A button input apparatus with a display function, which generates a switch signal in response to a user's press, and a portable electronic device having the same. The button input apparatus includes: a plurality of lever buttons each having a transparent window in at least a portion thereof, and one fixed edge on one side of the transparent window, so that the buttons are elastically vertically flexible; a switch substrate, which is disposed below the plurality of lever buttons, including openings respectively corresponding to the transparent windows, and generating a switch signal according to a motion of any of the plurality of lever buttons via a plurality of switches disposed to respectively correspond to elastic parts of the lever buttons; and a display panel, which provides an image in an area corresponding to each of the transparent windows, at least a portion of the display panel being disposed below the plurality of lever buttons.

Abstract: A function input method for providing in advance to a user information on a function to be executed when the user presses a button to execute a specific function in a portable terminal, such as a cellular phone, and a button input apparatus using the same. The method includes: receiving a button input when the user presses one of a plurality of buttons; determining whether a mode of the button input is a touch mode or a click mode; and displaying a preview image of a function corresponding to the pressed button if the button input mode is the touch mode and executing the function corresponding to the pressed button if the button input mode is the click mode.

Abstract: A method for setting a communication mode in a wireless terminal which can reduce the inefficiency due to frequent handover in a wireless terminal that performs a communication service through a GERAN/UTRAN network and a wireless network. The method for setting a communication mode in a wireless terminal that performs a multi-mode communication service through a GSM/EDGE radio access network (GERAN)/UTRAN network and a wireless network, includes checking for a predetermined time a movement frequency of the wireless terminal that performs the communication service as moving through the GERAN/UTRAN network and the wireless network, setting a communication mode of the wireless terminal through either of the GERAN/UTRAN network and the wireless network if the movement frequency of the wireless terminal is larger than a reference movement frequency, and performing the communication service in the set communication mode as moving through the GERAN/UTRAN network and the wireless network.

Abstract: A button input apparatus with a display function, which generates a switch signal in response to a user's press, and a portable electronic device having the same. The button input apparatus includes: a plurality of lever buttons each having a transparent window in at least a portion thereof, and one fixed edge on one side of the transparent window, so that the buttons are elastically vertically flexible; a switch substrate, which is disposed below the plurality of lever buttons, including openings respectively corresponding to the transparent windows, and generating a switch signal according to a motion of any of the plurality of lever buttons via a plurality of switches disposed to respectively correspond to elastic parts of the lever buttons; and a display panel, which provides an image in an area corresponding to each of the transparent windows, at least a portion of the display panel being disposed below the plurality of lever buttons.

Abstract: A method, medium, and apparatus of a self-propelled mobile unit with obstacle avoidance during wall-following. In the self-propelled mobile unit, a carrying unit may move the mobile unit by using a transmitted power, and a sensor unit can detect an obstacle and a wall, which may be respectively placed in front of and to the side of the mobile unit, with respect to a moving direction of the carrying unit. A controller may direct the carrying unit by generating a path along which the carrying unit moves according to a detection result from the sensor unit. Accordingly, the controller can direct the carrying unit to move while maintaining a predetermined distance (within a predetermined range) from the wall. If the sensor unit detects an obstacle, the controller directs the carrying unit to move in an obstacle free direction.

Abstract: A method of moving in a minimum cost path using a grid map, and an apparatus to perform the method, the method including calculating a move cost to a goal, from each of a plurality of cells comprises in a space in which a mobile home appliance moves, and planning a movement path to the goal according to the move cost; determining one or more via points at which a direction changes on the movement path; planning the minimum cost path from the movement path by selecting one or more shortest-distance via points from the via points; and moving from a first shortest-distance via point to a second shortest-distance via point.

Abstract: A method for driving a liquid crystal display is provided. The display includes a liquid crystal formed between a first substrate and a second substrate, a first electrode arranged at the first substrate, a second electrode arranged at the second substrate, and red, green, and blue lights sequentially transmitting on one pixel of the display. The driving method includes applying a gray voltage based on gray data between the first electrode and the second electrode during a first part in a first period and applying a reset voltage to reset a liquid crystal between the first electrode and the second electrode to a desired state during a second part in the first period.

Abstract: A liquid crystal display and a driving method thereof. Liquid crystal is disposed between a first substrate and a second substrate, and first, second, and third color lights are sequentially transmitted for each of a plurality of pixels. A first voltage corresponding to first gray data is applied to a first said pixel, and a second voltage corresponding to second gray data is applied to a second said pixel. A first reset voltage corresponding to the first gray data is applied to the first said pixel after applying the first voltage, and a second reset voltage is applied to the second pixel after applying the second voltage. The second reset voltage corresponds to the second gray data and has a voltage level which is different from that of the first reset voltage.

Abstract: A dust detection method and apparatus of a cleaning robot. The dust detection method involves acquiring a floor image as a current floor image of a predetermined place at a current location of the cleaning robot in the predetermined place; obtaining a difference image between the current floor image and a background image selected from a feature map consisting of a plurality of floor images of the predetermined place; and detecting a dusty area based on the difference image and adjusting a cleaning power of the cleaning robot.

Abstract: A method of driving a liquid crystal display (LCD) in an analog driving manner capable of improving a response speed. In an LCD having a liquid crystal disposed between upper and lower substrates, a method of sequentially driving the liquid crystal to display a desired color per each of subframes constituting one frame is provided. The method includes applying at least one of first analog voltage signals for displaying gray scales corresponding to gray scale data to the liquid crystal in a first screen period of each of the subframes and driving the liquid crystal to display at least one of the gray scales; and applying a second analog voltage signal having substantially the same absolute value as a biggest value among absolute values of the first analog voltage signals to the liquid crystal to reset the liquid crystal in a second screen period of each of the subframes.

Abstract: The present invention relates to an apparatus and method for creating a three-dimensional caricature, and more particularly, to an apparatus and method for creating a three-dimensional caricature having a high degree of similarity to user's face by precisely extracting feature point information on facial features and modifying a three-dimensional polygon face basic model based on the feature point information using an ASM technique specialized for faces. The method comprises the steps of detecting the positions of eyes from an input facial image and normalizing the size of the facial image, detecting each initial position for facial features from the normalized facial image, loading ASMs in the normalized facial image so as to correspond to the detected initial position and then extracting feature points for the facial features, and creating a three-dimensional polygon face caricature by modifying the three-dimensional polygon face basic model according to coordinate values of the extracted feature points.

Abstract: A method and apparatus for controlling home electronic devices connected to a home network are provided. The method for controlling home electronic devices connected to a home network includes receiving a user voice command and converting the user voice command into a character command; extracting actions and objects from the character command and converting the character command into a logical command; extracting an action list containing a series of actions from the logical command by referring to an action library storing action data for controlling home electronic devices connected to the home network; and converting the series of actions included in the action list into a control signal and controlling the home electronic devices connected to the home network. According to the method and apparatus, user commands to home electronic devices connected to a complicated home network can be simplified such that home electronic devices are controlled conveniently and efficiently.

Abstract: Diverse dyeable polypropylene fibers are manufactured by making polypropylene resin composition chips by dispersing 100 parts by weight of polypropylene, 1-10 parts by weight of semi-crystalline functional high polymer, 0.05-5 parts by weight of amorphous functional polymer, and 0.1-3 parts by weight additives and melting and spinning the polypropylene resin composition chips.