| Patent application number | Description | Published |
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| 20090055671 | Apparatus and method for entering idle mode in a broadband wireless access (BWA) system - A power saving mode is provided. A method for entering a power saving mode of a terminal includes a first operation for starting a first timer after transmitting an idle mode request message; a second operation for, when an idle mode approval message is not received until the first timer expires, checking whether a number of retransmissions of the idle mode request message exceeds a number of allowed retransmissions of the idle mode request message; a third operation for, when the number of the retransmissions of the idle mode request message exceeds the number of the allowed retransmissions of the idle mode request message, increasing a number of idle mode entry failures; and a fourth operation for, when the increased number of the idle mode entry failures is greater than N times, entering a power saving mode which powers off a modem. | 02-26-2009 |
| 20090167600 | APPARATUS AND METHOD FOR SUPPORTING ASSISTED GLOBAL POSITIONING SYSTEM DURING EMERGENCY SERVICE IN A COMMUNICATION SYSTEM - An apparatus and method for supporting an Assisted Global Positioning System (AGPS) during emergency service in a communication system are provided. The system includes a client, an integration location server, and a dual mode Mobile Station (MS). The client requests MS location information for emergency service. The integration location server receives MS access information and sends a location information request. The dual mode MS receives the location request, activates a second communication modem, and performs an AGPS operation with the integration location server. | 07-02-2009 |
| 20090233552 | OPERATION METHOD AND DEVICE FOR INTEGRATED MODEM HAVING PLURALITY OF MODEMS - An operation method and device for an integrated modem having a plurality of modems is provided. The method includes connecting the integrated modem to a mobile terminal, supplying, by the mobile terminal, power to each modem of the integrated modem, performing booting each modem to maintain a ready-on state, and controlling to operate a modem selected according to an input signal from an input unit while terminating supplying of power to the non-selected modem or maintaining the booting completion state. | 09-17-2009 |
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| 20100277504 | METHOD AND SYSTEM FOR SERVING THREE DIMENSION WEB MAP SERVICE USING AUGMENTED REALITY - Disclosed is a method for a 3-dimensional (3D) web map service using augmented reality, the method including downloading a mapping information file where 2-dimensional (2D) marker information and 3D modeling data are mapped, receiving map data including the 2D marker information from a map data providing server, rendering a map to a frame buffer in advance using the received map data, extracting an identification (ID) of the 3D modeling data through detecting 2D marker information from the map data and searching the mapping information file, extracting the 3D modeling data corresponding to the detected 2D marker information from a 3D modeling database using the ID of the 3D modeling data, additionally rendering the 3D modeling data to the frame buffer after processing the 3D modeling data, and rendering the rendered data to a screen. | 11-04-2010 |
| 20120007691 | IMPEDANCE MATCHING APPARATUS AND METHOD OF ANTENNA CIRCUIT - An impedance matching apparatus is provided. The impedance matching apparatus includes a signal separation unit, an impedance detection unit, and an impedance matching unit. The signal separation unit separates a transmission and reception signal, and selectively passes a desired frequency corresponding to the transmission and reception signal. The impedance detection unit receives a signal outputted from the signal separation unit to detect first and second electric potentials between a plurality of impedances. The impedance matching unit compares the first and second electric potentials detected by the impedance detection unit to match the impedances. | 01-12-2012 |
| 20120007692 | IMPEDANCE MATCHING APPARATUS AND METHOD OF ANTENNA CIRCUIT - An impedance matching apparatus is provided. The impedance matching apparatus includes a signal separation unit, an impedance detection unit, and an impedance matching unit. The signal separation unit separates a transmission and reception signal, and selectively passes a desired frequency corresponding to the transmission and reception signal. The impedance detection unit includes a plurality of impedances, and detects first and second electric potentials between the impedances. The impedance matching unit compares the first and second electric potentials detected by the impedance detection unit, and changes a matching factor for one of the impedances included in the impedance detection unit to match the impedances according to the compared result. | 01-12-2012 |
| 20120016611 | IMPEDANCE MATCHING SYSTEM AND OPERATING METHOD THEREOF - An impedance matching system is provided. The impedance matching system includes an impedance matching apparatus and an impedance analysis apparatus. The impedance matching apparatus varies a capacitance value of a capacitor according to an applied voltage value, and matches an impedance according to the varied capacitance value. The impedance analysis apparatus supplies a voltage for varying the capacitance value to an impedance matching circuit, and determines an impedance value, changed according to the voltage value, to analyze characteristic of a capacitor included in the impedance matching apparatus. | 01-19-2012 |
| 20120026063 | APPARATUS AND METHOD FOR MATCHING IMPEDANCE USING STANDING WAVE RATIO INFORMATION - An apparatus and method for matching impedance of an antenna by using Standing Wave Ratio (SWR) information is provided. While the impedance of the impedance matching unit is controlled, a region of a Smith chart in which initial total impedance of the impedance matching unit and the antenna is located by using an SWR calculated by an SWR operation unit, and the impedance of the impedance matching unit is controlled according to the determined region, thus correctly matching the impedance of the antenna. | 02-02-2012 |
| 20120038523 | IMPEDANCE MATCHING METHOD, IMPEDANCE MATCHING APPARATUS FOR THE SAME, AND RECORD MEDIUM - Disclosed are an impedance matching method, an impedance matching apparatus for the same, and a record medium. The impedance matching apparatus includes a storage part to store information about an impedance matching point according a state of an obstacle, an impedance matching part connected to an antenna and including at least one variable element, a detector to detect transmit power and reflected power reflected by the antenna, and a controller to search for an impedance matching point within a variation range of the variable element by using at least one of the transmit power and the reflected power, and to detect a state of a surrounding obstacle by comparing information about the searched impedance matching point with the stored information about the impedance matching point. | 02-16-2012 |
| 20120038524 | Impedance Matching Method, Impedance Matching Apparatus For The Same, and Record Medium - Disclosed are an impedance matching method, an impedance matching apparatus for the same, and a record medium. The impedance matching apparatus includes an impedance matching part connected to an antenna to transmit/receive a radio wave and including at least one variable capacitor, a detector to detect transmit power and reflected power reflected by the antenna, and a controller to set a first searching region within a whole variation range of the variable capacitor, to detect an optimal impedance matching point within the first searching region by using at least one of the transmit power and the reflected power, and to set a next searching region about the optimal impedance matching point to search for a final impedance matching point within the whole variation range of the variable capacitor. | 02-16-2012 |
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| 20090046285 | Structure for diagnosis system of reaction process - The present invention relates to a spectroscopy analyzer for real-time diagnostics of process, and more particularly, to a spectroscopy analyzer for real-time diagnostics of process, in which a beam is injected to a reaction byproduct or a reactant and then an output beam is measured, thereby performing quantitative and qualitative analysis of the reaction byproduct or the reactant. | 02-19-2009 |
| 20090064756 | VACUUM GAUGE CALIBRATION APPARATUS CAPABLE OF CALIBRATING AND TESTING WITHOUT DISPLACEMENT AND OPERATING METHOD THEREOF - The present invention provides a vacuum gauge calibration apparatus capable of calibrating and testing a vacuum gauge without displacement or separation of the vacuum gauge, the vacuum gauge being attached to a vacuum device under operation together with developing a movable vacuum gauge calibration device, and an operating method thereof. According to the present invention, there is provided an apparatus for calibrating and testing a vacuum gauge to be calibrated without displacement, the vacuum gauge being connected to a vacuum device, the apparatus comprising: a vacuum shut-off valve for opening and closing a piping for connecting the vacuum device to the to-be-calibrated vacuum gauge; and a movable vacuum gauge calibration device connected to the to-be-calibrated vacuum gauge, wherein the movable vacuum gauge calibration device includes: a reference vacuum gauge, a vacuum connection valve, a vacuum chamber, a gate valve, and an exhaust device which are connected to the to-be-calibrated vacuum gauge side in series; a gas supply source connected to the vacuum chamber for generating pressure in the vacuum chamber; a leak valve for controlling gas flow in the gas supply source and supplying the gas the vacuum chamber; and a vacuum gauge for the vacuum chamber for measuring vacuum pressure in the vacuum chamber. | 03-12-2009 |
| 20110231251 | Digital broadcast network system for providing widget service and operating method thereof - Provided are a digital broadcast network system for providing a widget service and an operating method thereof The digital broadcast network system includes a communication network, a broadcast terminal, and a broadcasting station system. The broadcasting station system provides widget advertisement contents, received from a widget content provider, to the broadcast terminal. The broadcast terminal outputs the received widget advertisement contents to a display unit in response to a widget display control signal, and transmits product purchase information to the broadcasting station system when receiving a purchase request signal for products included in the widget advertisement contents. | 09-22-2011 |
| Patent application number | Description | Published |
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| 20080278944 | OPTICAL LENS, OPTICAL MODULE HAVING THE SAME, AND BACKLIGHT ASSEMBLY HAVING THE SAME - An optical module includes a point light source device and an optical lens. The point light source device generates light. The optical lens includes an inner curved surface and an outer curved surface. The inner curved surface has a first roughly ellipsoidal shape having a first major axis and a first minor axis that is substantially perpendicular to the first major axis. The outer curved surface has a second roughly ellipsoidal shape having a second major axis that is substantially perpendicular to the first axis and the second minor axis that is substantially perpendicular to the second major axis. The light generated by the point light source device enters the optical lens through the inner curved surface and exits from the optical lens through the outer curved surface. Therefore, the number of optical modules used in a display device may be reduced to lower manufacturing cost thereof. | 11-13-2008 |
| 20090001400 | TWO DIMENSIONAL LIGHT SOURCE USING LIGHT EMITTING DIODE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE TWO DIMENSIONAL LIGHT SOURCE - A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip. | 01-01-2009 |
| 20090256499 | POWER SUPPLY, DISPLAY DEVICE, AND LIGHT SOURCE DRIVING APPARATUS - A power supply is provided, which includes a DC-DC converter being supplied with an external DC input voltage and a first switching control signal and outputting a duty sensing signal of which a magnitude is varied in accordance with the first switching control signal, the duty sensing signal being indicative of a duty ratio of the first switching control signal, and the DC-DC converter converting the input voltage into a DC output voltage of a predetermined magnitude based on the first switching control signal; and a feedback controlling unit comparing the duty sensing signal with a first reference signal to adjust the duty ratio of the first switching control signal. | 10-15-2009 |
| 20090273920 | LIGHT GENERATING DEVICE, BACKLIGHT ASSEMBLY HAVING THE SAME, AND DISPLAY APPARATUS HAVING THE BACKLIGHT ASSEMBLY - A light-generating device includes a driving substrate and a plurality of light source arrays. The driving substrate has a rectangular planar shape. The plurality of light source arrays is formed on the driving substrate. The light source arrays include at least one light emitting diode to generate light in response to power being applied through the substrate, and the light source arrays are spaced apart from each other. Thus, heat generated from the light-generating device is rapidly dissipated from the light-generating device, improving brightness of the light, brightness uniformity of the light and color reproducibility of the light. | 11-05-2009 |
| 20090279312 | LIGHT EMITTING DIODE AND LENS FOR THE SAME - A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A1, and an acute angle formed between a straight line linking the center of the base to the point of the curved centermost surface and the main axis of the lens is A2, the lens satisfies the equation: | 11-12-2009 |
| 20100195316 | Optical Lens, Optical Package Having the Same, Backlight Assembly Having the Same and Display Device Having the Same - An optical lens refracts and reflects a light to increase a luminance in a top direction of the optical lens and to decrease a luminance in a horizontal direction of the optical lens. The optical lens includes a central portion and a peripheral portion. The central portion has a convex shape. The peripheral portion has a concave shape. The peripheral portion surrounds the central portion. Therefore, power consumption and manufacturing cost are decreased. | 08-05-2010 |
| 20110163343 | TWO DIMENSIONAL LIGHT SOURCE USING LIGHT EMITTING DIODE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE TWO DIMENSIONAL LIGHT SOURCE - A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip. | 07-07-2011 |
| 20110242820 | LIGHT EMITTING DIODE AND LENS FOR THE SAME - A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. In addition, when an obtuse angle formed between a main axis of the lens and a tangent line of a point of the curved centermost surface is A | 10-06-2011 |
