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Hwang, Incheon
Bong-Ha Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100092041 | METHOD OF MEASURING A THREE-DIMENSIONAL SHAPE - In order to measure a three-dimensional shape, feature information is read from a database. A board is transferred to a measurement position. A measurement head is transferred to an inspection area of the board. Light of a first lighting device for three-dimensional measurement and light of a second lighting device for two-dimensional measurement is illuminated onto the inspection area to photograph a first reflection image and a second reflection image that are reflected from the inspection area. The inspection area is realigned by comparing the feature information with at least one of the photographed first and second reflection images to inspect distortion of the inspection area. The realigned inspection area is inspected. Thus, the three-dimensional shape may be precisely measured. | 04-15-2010 |
Dong-June Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110015348 | BLEND OF POLYESTER AND POLYCARBONATE HAVING TRANSPARENCY AND HEAT RESISTANCE - A polyester/polycarbonate blend having superior transparency and heat resistance which is useful for producing transparent polyester articles is disclosed. The blend of polyester and polycarbonate includes (a) polyethyleneterephthalate (PET) prepared with terephthalic acid component and ethylene glycol component, or copolymerized polyethyleneterephthalate prepared with terephthalic acid component and ethylene glycol component, and further copolymerized with 1 to 10 mol % of isophthalic acid, cyclohexane dimethanol (CHDM), di-ethylene glycol and/or alkylene glycol of 3 to 6 carbon atoms component with respect to acid or diol components; (b) polycarbonate (PC); and (c) CHDM modified PET prepared with 20 to 80 mol % CHDM with respect to diol components, wherein the amount of the PC is 10 to 60 wt % with respect to the mixture of (a) PET and (b) PC, and the amount of the (c) CHDM modified PET is 0.2 to 2.5 times by weight with respect to the amount of (b) PC. | 01-20-2011 |
| 20120029163 | METHOD OF PREPARING A HEAT-RESISTANT POLYAMIDE - The present invention relates to a method of prepairing a heat-resistant polyamide by carrying out condensation polymerisation with a monomer mixture including a diester compound and a diamine compound. The present invention provides an economical method of prepairing a heat-resistant polyamide in that a monomer, a raw material, is simply and chiefly prepared, and the polymerizing reaction time is short because it does not need solvent separately. | 02-02-2012 |
Eui-Dong Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080204398 | METHOD FOR DRIVING LAMPS, DRIVING CIRCUIT FOR PERFORMING THE SAME AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME - A lamp driving circuit includes a power-generating section, a distribution sensing section and a feedback control section. The power-generating section generates a lamp driving power to drive a plurality of lamps. The distribution sensing section divides the lamp driving power to the plurality of lamps. The distribution sensing section senses the lamp driving power to generate a feedback signal. The feedback control section checks whether or not the plurality of lamps is lit. The feedback control section blocks the feedback signal from being reflected in the lamp driving power before the plurality of lamps is lit. | 08-28-2008 |
Eun Sun Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20120045010 | RECEIVER, METHOD FOR CANCELLING INTERFERENCE THEREOF AND TRANSMITTER FOR THE SAME - Provided is a method for eliminating an interference operating on a receiver of a transmitter in a communications system, which includes transmitting at least one user signal; changing user phase information to be separated from interference phase information by a preset difference, when receiving the user phase information of the user signal and the interference phase information of an interference signal from at least one receiver; and transmitting at least one other user signal according to the changed user phase information. | 02-23-2012 |
Hae-Jin Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110091794 | FUEL ELECTRODE MATERIAL AND SOLID OXIDE FUEL CELL INCLUDING THE FUEL ELECTRODE MATERIAL - A fuel electrode material including a metal oxide having a perovskite type crystalline structure and represented by Formula 1: | 04-21-2011 |
Hyeong-Yong Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100246861 | SMALL-SIZED SOUND RECEIVER FOR PRODUCING BODY-SENSING VIBRATION - Disclosed is a small-sized sound receiver for producing body-sensible vibration, and more particularly to a small-sized sound receiver for producing body-sensible vibration, which has a structure for bone-conduction so that the receiver can implement not only a function of a common small-sized sound receiver but also sensing of various sounds and various body-sensible vibrations, such as body-sensible vibration and bone-conduction sound, or the like. | 09-30-2010 |
Jaeho Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080212650 | COGNITIVE UWB SYSTEM AND COGNITIVE UWB DATA COMMUNICATION METHOD - A cognitive UWB system and a cognitive UWB data communication method. The system includes a cognitive UWB transmitter and a cognitive UWB receiver. The cognitive UWB transmitter includes a channel encoder for correcting error of data, a preamble inserter for inserting a preamble into the data, a mask information inserter for inserting mask information into the data, a cognitive UWB pulse generator for generating a pulse based on the mask information and the channel environment information, a pulse position modulator for modulating the pulse, and a radio frequency transmitter for wirelessly transmitting the data. The cognitive UWB receiver includes a radio frequency receiver for wirelessly receiving data, a synchronizer for synchronizing time of data, a spectrum detector for detecting the channel environment information, a mask information extractor for extracting the mask information, a cognitive UWB pulse generator for generating a pulse, a pulse position modulator for demodulating the pulse, and a channel decoder for correcting error of the demodulated data. | 09-04-2008 |
Jae Ho Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100124269 | METHOD FOR MODULATING AND DEMODULATING DATA - Disclosed is a method for modulating and demodulating data. The method composes symbols by grouping a plurality of symbols for pulse position modulation to newly add symbol compositions to fixed symbols used for the pulse position modulation of the related art. Further, the method uses grouped symbols to improve data transmission rate as the average amount of information increases. | 05-20-2010 |
Jae-Hyung Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100161823 | A STREAMING SERVICE SYSTEM AND METHOD FOR UNIVERSAL VIDEO ACCESS BASED ON SCALABLE VIDEO CODING - Provided is a streaming service system and method for a universal video access based on scalable video coding (SVC). A gateway to provide a streaming service may include: an SVC content file parser to receive an SVC content file from a streaming server, and to separately extract an SVC network abstraction layer (NAL unit) of a base layer and an SVC NAL unit of a scalable enhancement layer from SVC NAL units that are included in the SVC content file; an SVC NAL selection unit to select an SVC NAL unit corresponding to a client type of each of terminals; and a packet generation unit to transmit the selected SVC NAL unit to a corresponding terminal. | 06-24-2010 |
Jinill Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20120073404 | METHOD OF RECOVERING VALUABLE METAL FROM SLAG - A method of recovering a valuable metal from slag is disclosed. The method includes the steps of: applying a magnetic field whose magnitude is increased in a stepwise fashion to crushed slag to separate a magnetic material from the crushed slag; and introducing a reductant into the separated magnetic material to recover a valuable metal therefrom. The method is advantageous and cost effective because the recovery rate of iron (Fe) from slag exceeds 50% by using a magnetic field, thus reducing the amount of slag to be wasted. | 03-29-2012 |
| 20120073406 | METHOD AND APPARATUS FOR RECOVERING VALUABLE METALS FROM SLAG AND MANUFACTURING MULTIFUNCTIONAL AGGREGATE - Disclosed is a method and apparatus for recovering valuable metals from slag and manufacturing multifunctional aggregate, wherein a reducing agent is fed into molten slag discharged into a slag pot or a slag reforming pot from a converter or an electric arc furnace thus recovering valuable metals from the molten slag, and then the molten slag is formed into a lightweight porous structure. Accordingly, the valuable metals (Fe, Mn) are recovered from the slag discharged from the converter or electric arc furnace, and slag having low specific gravity is ensured using foaming and controlled cooling and then formed into multifunctional aggregate. | 03-29-2012 |
Kum Yong Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080298650 | Optical finger print acquisition apparatus using a prism - An optical fingerprint acquisition apparatus using a prism, which can improve the quality of a fingerprint image acquired by an image sensor, is provided. The optical fingerprint acquisition apparatus using the prism includes a pentagon prism including an input face | 12-04-2008 |
Kyu-Sung Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110243044 | MAGNETIC FIELD COMMUNICATION METHOD AND APPARATUS CAPABLE OF RECOGNIZING MULTIPLE NODES - Magnetic field communication methods and apparatuses are performed by the coordinator and node of a magnetic field area network, respectively. The method which is performed by the coordinator includes: (a) sending a request packet requesting association with a network, disassociation from a network, network association state checking, data transmission, or group address setting, (b) receiving response packets, (c) selecting one or more response packets from among the received response packets, (d) sending a response acknowledgement packet to nodes corresponding to the selected response packets, (e) receiving response packets resent by nodes which have not received the sent response acknowledgement packet, (f) selecting one or more response packets from among the response packets received at (e), and (g) sending a response acknowledgement packet to nodes corresponding to the response packets selected at (f). | 10-06-2011 |
| 20110243267 | MAGNETIC FIELD COMMUNICATION METHOD FOR MANAGING NODE WITH LOW POWER CONSUMPTION - A magnetic field communication method is provided for managing node with low power consumption which enhances performance and efficiency of a magnetic field area network in the low frequency region. The magnetic field communication method for managing node with low power consumption of the present invention is accomplished in a low-frequency wireless network that is comprised of a MFAN-C and at least one MFAN-N wherein a physical layer is comprised of a preamble, a header, and a payload, and the preamble is comprised of a wake-up sequence and a synchronization sequence. The wake-up sequence is only added to the preamble of the frame that is transmitted from the MFAN-C when the MFAN-N is being activated from the hibernation mode. The wake-up sequence is modulated using ASK modulation, and the synchronization sequence is modulated using BPSK modulation. | 10-06-2011 |
Mi-Hee Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20120044118 | RADIATOR USING A DIELECTRIC MEMBER AND ANTENNA INCLUDING THE SAME - A radiator for improving beam pointing error and beam tracking error using a dielectric member and an antenna including the same are disclosed. The radiator includes a first dipole member, a second dipole member adjacent to the first dipole member, a third dipole member facing to the first dipole member, and a fourth dipole member facing to the second dipole member. Here, the first to fourth dipole members have square shape, and a dielectric member is connected to at least one of the first to fourth dipole members. | 02-23-2012 |
Tae-Jin Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100200818 | Electrochromic pani films and process thereof - A method of manufacturing an electrochromic polyaniline thin film changeable in color in dependency upon the supply of electricity is provided. The method comprises the steps of polymerizing aniline monomer into polyaniline polymer, separating the polyaniline polymer, liquefying the separated polyaniline polymer into a dispersing solution using a mixed surfactant, and dissolving an UV curing adhesive in the dispersing solution, whereby the polyaniline thin film has the ductility and improved adhesion force for an electric substrate, so that it is applicable to development of a flexible display and as a next generation hi-tech material. | 08-12-2010 |
Yong Ki Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110240167 | WINDABLE STEEL NET REINFORCEMENT STRUCTURE - The present invention relates to a steel net reinforcement structure which is used for a conveyer belt or a shutter screen. The steel net reinforcement structure comprises: a steel net including hooks projecting from both sides thereof; a reinforcement including a slit cut open along a diagonal direction on both sides thereof; and a steel core which can lock the hooks which are inserted on both inner sides of the reinforcement. The steel net reinforcement structure can be wound conveniently and flexibly while reinforcing strength of the steel net. | 10-06-2011 |
Yoon-Choon Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110234611 | METHOD AND APPARATUS FOR PROCESSING IMAGE IN HANDHELD DEVICE - A handheld device including a Central Processing Unit (CPU) for receiving an original image input into the handheld device, and converting the original image into a quadrilateral image corresponding to a display size; and a General Purpose Computing on Graphics Processing Unit (GPGPU) for setting fragments for pixels included within vertices of the quadrilateral image, and applying a predetermined algorithm for image processing to the original image. | 09-29-2011 |
Yoon Gone Hwang, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090145058 | Seismic reinforcing structure to distribution panel mounted on a raised access floor without transfer or power interruption - A seismic reinforcing structure is disclosed, which is for a power supplying distribution panel or panelboard mounted on a raised access floor system in order to reinforce a seismic capacity. More particularly, the seismic reinforcing structure can be mounted even to an existing operating distribution panel or panelboard having a seismic capacity without requiring transfer or power interruption of the distribution panel or panelboard in operation. | 06-11-2009 |