Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Chang-Won
Chang Won Jung, Jeollanam-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100040913 | APPARATUS AND METHOD FOR DETERMINING DETERIORATION OF A FUEL CELL AND METHOD FOR PREVENTING DETERIORATION OF THE SAME - The present invention provides an apparatus and method for determining deterioration of a fuel cell, the method including measuring in real time fluoride ion concentration or pH value of outflow water from a fuel cell stack during operation in a fuel cell vehicle, calculating a fluoride emission rate from the measured value and, if the calculated fluoride emission rate is out of a predetermined normal range, determining deterioration of an electrolyte membrane of the fuel cell stack. | 02-18-2010 |
Chang Won Kang, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090308497 | CARBURIZATION HEAT TREATMENT METHOD AND METHOD OF USE - Disclosed is a carburization heat treatment method including carburizing a workpiece at a relatively low temperature within a temperature range of A | 12-17-2009 |
| 20110172970 | APPARATUS FOR REMOVING THE PARTIAL DISCHARGE NOISE OF AN ELECTRICAL POWER FACILITY AND APPARATUS FOR DETECTING A PARTIAL DISCHARGE GENERATED SECTION - The present invention relates to an apparatus for removing the partial discharge (PD) noise of an electrical power facility that is capable of quickly removing noise from a partial discharge signal generated from the electrical power facility such as a gas insulated switchgear (GIS) and the like, and an apparatus for detecting a partial discharge generated section. The apparatus for removing the partial discharge noise of an electrical power facility includes: a partial discharge signal detection unit for detecting a partial discharge signal of the electrical power facility, and detecting and outputting peaks of the partial discharge signal at preset time intervals; a noise signal detection unit for detecting a noise signal from outside the electrical power facility, and detecting and outputting peaks of the noise signal at preset time intervals; | 07-14-2011 |
Chang Won Lee, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120000211 | DEVICE AND METHOD FOR CONTROLLING COMPRESSOR OF VEHICLES - A device and a method for a controlling compressor of vehicles improves acceleration performance and fuel efficiency and maintains comfort of a cabin by decreasing an operation of the compressor when accelerating. The device may include a sensor module including a cabin temperature sensor, an outdoor temperature sensor, an evaporator temperature sensor detecting a temperature of a cooling medium in an evaporator, an engine speed sensor detecting rotation speed of an engine, and a throttle position sensor detecting a throttle opening, an air conditioning system including a condenser condensing and liquefying the cooling medium, an evaporator evaporating the liquefied cooling medium, the compressor compressing the cooling medium, a temperature control door controlling a temperature of an air flowed in a cabin, an intake door selectively flowing an inner air or an outer air in the cabin, and a blower blowing the air to the intake door, and a controller controlling an operation of the air conditioning system, wherein the controller decides a acceleration mode and an allowable temperature at each acceleration mode when an acceleration condition occurs, and decreases an operation of the compressor according to a difference between the evaporator temperature and the allowable temperature. | 01-05-2012 |
Chang Won Lee, Suwan-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120000210 | Device and Method for Controlling Compressor of Vehicles - A method for controlling a compressor of vehicles improves fuel efficiency by accumulating a cold air energy when a speed-reducing condition occurs and using the accumulated cold air energy when a release condition occurs. A device for controlling a compressor of vehicles may include a sensor module including a cabin temperature sensor detecting a cabin temperature of the vehicle, an outdoor temperature sensor detecting an outdoor temperature of the vehicle, an evaporator temperature sensor detecting a temperature of a cooling medium in an evaporator (evaporator temperature), a vehicle speed sensor detecting a vehicle speed, and a brake sensor detecting an operation of a brake pedal, an injector injecting a fuel for driving the vehicle, an air conditioning system including a condenser condensing and liquefying the cooling medium, an evaporator evaporating the liquefied cooling medium, the compressor compressing the cooling medium, a temperature control door controlling a temperature of air flowing into a cabin of the vehicle, an intake door selectively distributing an inner air or an outer air into the cabin of the vehicle, and a blower blowing the air to the intake door, and a controller controlling operations of the injector and the air conditioning system, wherein the controller accumulates a cold air energy by increasing an operation of the compressor in a case that a speed-reducing condition occurs, and the air conditioning system uses the accumulated cold air energy by decreasing the operation of the compressor in a case that a release condition occurs. | 01-05-2012 |
Chang Won Park, Yongin-Shi KR
| Patent application number | Description | Published |
|---|---|---|
| 20100062254 | Process For Preparing Polyurethane Particulate and Polyurethane Particulate Prepared Therefrom - Disclosed is a process for preparing polyurethane particulate and polyurethane particulate prepared therefrom. The polyurethane particulate has properties such that it is easy to control to a spherical form, the polyurethane particulate can be prepared in a desired particle size, the color thereof is stably exhibited, a washing process thereof is easy because almost no foam is generated in the washing process, and the preparation cost can be lowered because the particles do not lump and a separate grinding process is not needed, by using an inorganic suspension stabilizer in the manufacture process of the polyurethane particulate. | 03-11-2010 |
Chang Won Yang, Icheon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080205138 | MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A memory device has memory cells that are Multi-Level Cells (MLCs). A memory cell array includes a plurality of cell strings, each string provided between a bit line and a common source line, wherein a positive voltage is applied to the common source line at the time of program verification. A page buffer is configured to program the MLCs, read memory cells, and perform program verification. This program verification is performed by sequentially increasing a voltage level of a bit line select signal until the bit line select signal reaches to a voltage that is sufficient to verify a programmed state of a selected cell in the memory cell array. | 08-28-2008 |
| 20090141561 | METHOD OF OPERATING A NON-VOLATILE MEMORY DEVICE - In a method of operating a non-volatile memory device subdivided verifications are performed by increasing verify voltages. Accordingly, threshold voltage distributions of memory cells can be narrowed and, therefore, the program performance of a flash memory device can be improved. | 06-04-2009 |
| 20090290431 | NONVOLATILE MEMORY DEVICE - A nonvolatile memory device includes a page buffer circuit. The page buffer circuit includes a memory cell area, a first bit line select unit, and a second bit line select unit. A plurality of memory cells of the memory cell area is connected by bit lines and word lines. The first bit line select unit i s connected to one or more bit lines of the memory cell area and is configured to precharge or discharge a selected bit line in response to a control signal. The second bit line select unit is connected to the same bit line as the first bit line select unit and is configured to precharge or discharge the selected bit line simultaneously with the first bit line select unit. | 11-26-2009 |
| 20100329005 | SEMICONDUCTOR MEMORY DEVICE AND PROGRAMMING METHOD THEREOF - A programming method comprised of: classifying memory cells to be programmed into first, second and third levels; applying a program inhibition voltage to an unselected bit line, applying a ground voltage to bit lines, which are coupled with memory cells that are to be programmed into the third level, among selected bit lines, and applying a first voltage, which is lower than the program inhibition voltage but higher than a ground voltage, to bit lines coupled with memory cells that are to be programmed into the second level, and applying a second voltage, which is lower than the program inhibition voltage but higher than the first voltage, to bit line coupled with memory cells that are to be programmed into the first level; and supplying a program voltage, which gradually increases, to a selected word line coupled with the memory cells while applying the voltages to the bit lines. | 12-30-2010 |
| 20110157998 | SEMICONDUCTOR MEMORY DEVICE AND METHOD OF OPERATING THE SAME - A method of operating a semiconductor memory device comprises performing a third program such that threshold voltages of third memory cells, from among memory cells of a selected page, are higher than a third level, after the third program loop is completed, performing a second program loop such that threshold voltages of second memory cells, from among the memory cells, are lower than the third level, but higher than a second level, and after the second program loop is completed, performing a first program loop such that threshold voltages of first memory cells, from among the memory cells, are lower than the second level, but higher than a first level. | 06-30-2011 |
Chang Won Yang, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100142277 | PAGE BUFFER CIRCUIT, NONVOLATILE MEMORY DEVICE INCLUDING THE PAGE BUFFER CIRCUIT, AND METHOD OF OPERATING THE NONVOLATILE MEMORY DEVICE - A page buffer circuit comprises a bit line selection unit, a latch unit, and a bit line control unit. The bit line selection unit is configured to select a bit line coupled to memory cells. The latch unit comprises a plurality of latch circuits. The plurality of latch circuits is coupled to a sense node and configured to latch data to be programmed into the memory cells or store data from the memory cells. The bit line control unit is coupled to the sense node and configured to temporarily charge a voltage of the selected bit line in response to charge and transfer control signals or transfer the charged voltage to the selected bit line. | 06-10-2010 |
| 20110122707 | PAGE BUFFER CIRCUIT, NONVOLATILE MEMORY DEVICE INCLUDING THE PAGE BUFFER CIRCUIT, AND METHOD OF OPERATING THE NONVOLATILE MEMORY DEVICE - A page buffer circuit comprises a bit line selection unit, a latch unit, and a bit line control unit. The bit line selection unit is configured to select a bit line coupled to memory cells. The latch unit comprises a plurality of latch circuits. The plurality of latch circuits is coupled to a sense node and configured to latch data to be programmed into the memory cells or store data from the memory cells. The bit line control unit is coupled to the sense node and configured to temporarily charge a voltage of the selected bit line in response to charge and transfer control signals or transfer the charged voltage to the selected bit line. | 05-26-2011 |
Chang-Won Choi, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110182255 | METHOD FOR TRANSMITTING AND RECEIVING ETHERNET DATA BETWEEN DIGITAL UNIT AND RF UNIT AND APPARATUS THEREOF - A method for transmitting Ethernet data in a Digital Unit (DU) that processes a baseband and interfaces with at least two Radio Frequency (RF) Units (RUs) is provided. The method includes setting location information of two or more Ethernet channels in a first subchannel of a radio frame, allocating the two or more Ethernet channels in second subchannels of the radio frame, using the location information, and transmitting the radio frame to the at least two RUs. | 07-28-2011 |
Chang-Won Jeon, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100040300 | IMAGE PROCESSING METHOD AND APPARATUS FOR CORRECTING DISTORTION CAUSED BY AIR PARTICLES AS IN FOG - Provided are a method and apparatus for processing an image. The method includes receiving a first luminance image of an image including airlight, which is a type of light that occurs in a foggy environment, and generating an airtight map based on a ratio between an average luminance of the first luminance image, and a standard deviation; and removing the airtight by subtracting the airtight map from the first luminance image and outputting a second luminance image. According to the present invention, airlight components may be effectively removed. | 02-18-2010 |
Chang-Won Jung, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090079647 | Multiple Frequency Band Antenna and Antenna system Using the Same - A multiple frequency band antenna is provided that includes a radiating unit having a slot formed on a first surface of the substrate that is closed at one end and open at the other end, and a feed unit formed on a second surface of the substrate to pass through an area on the second surface that corresponds with the same area on first surface between the center and the closed side of the slot. The feeding unit comprises at least one switch which adjusts the size of an area for feeding power to the antenna. The radiating unit is resonated in a plurality of frequency bands when the switch is turned off, and the radiating unit is resonated in a single frequency band which is different from the plurality of frequency bands when the switch is turned on. Consequently, an antenna is implemented for use in multiple frequency bands. | 03-26-2009 |
Chang-Won Kim, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090274334 | Mounting Method and Holder for SMD Microphone - A SMD microphone holder has an SMD microphone mounted within, and includes a cap body and cylindrical portion. The cap body is withstands a reflow temperature, and defines a cavity for mounting the SMD microphone therein. The cylindrical portion is formed with the cap body, and withstands a reflow temperature. The cap body includes a center hole, a tool contacting surface, and a shock absorbing protrusion. The center hole, through which outside sound enters, is formed in an upper surface of the cap body. The tool contacting surface is formed around the center hole, to facilitate use of a vacuum tool during a mounting of the SMD microphone. The shock absorbing protrusion is formed on an upper, inner perimeter surface of the cap body in a radial direction about the center hole, to avert direct surface friction between the cap body and a sound hole of the SMD microphone. | 11-05-2009 |
| 20100290662 | STRAY CAPACITANCE REDUCED CONDENSER MICROPHONE - A condenser microphone includes a conductive layer which is partially disposed on an insulation ring of a second base to reduce stray capacitance. The condenser microphone includes: a conductive case with an opened surface, wherein an end portion of the case is bent to attach to a printed circuit board (PCB); a diaphragm mounted inside the case a backplate facing the diaphragm with a predetermined distance set by a spacer; a first base made of an insulating ring to electrically insulate the backplate from the case; a second base electrically connected to the backplate by disposing a conductive layer on a portion of a ring formed of an insulating material. The PCB has a circuit component and a conductive pattern for connecting the second base, and on another surface has a conductive pattern for connecting the bent end portion of the case and a connection terminal to an external circuit. | 11-18-2010 |
| 20110182448 | SPACER-INTEGRATED DIAPHRAGM FOR CONDENSER MICROPHONE - The present invention relates to a spacer-integrated diaphragm, in which spacers are integrated with the diaphragm, in order to reduce the number of components and manufacturing processes needed and remove parasitic capacitance. A characterizing feature of the spacer-integrated diaphragm of the present invention is that it has an integrated structure comprising a diaphragm of a flat conductive film, and thermally insulative spacers formed so as to protrude on peripheral portions of the diaphragm through a PSR (Photo Solder Resist) printing process. The spacers are formed with a plurality of holes to remove parasitic capacitance, the diaphragm has a rectangular flat shape with round edges, and the spacers are formed near the four edges of the rectangular flat shape. In the spacer-integrated diaphragm of the present invention, because the spacers are formed of a PSR (Photo Solder Resist) material and are also formed with a plurality of holes, the present invention can prevent unnecessary parasitic capacitance from occurring and improve sound quality, and, because the diaphragm and the spacers are integrally formed, the present invention can reduce the number of processes needed when a condenser microphone is assembled and reduce the number of components required, thereby reducing manufacturing costs. | 07-28-2011 |
| 20110249858 | MULTIFUNCTIONAL MICRO SPEAKER - A multifunctional micro speaker including a frame; a diaphragm having an outer circumferential portion fixed to the frame; a voice coil fixed to a lower surface of the diaphragm; a first suspension having one side fixed to the frame and having a predetermined elasticity; a yoke fixed to the first suspension and including a receiving groove; a first permanent magnet fixed to a bottom surface of the receiving groove; a plate fixed to an upper surface of the first permanent magnet; a second suspension having one side fixed to the frame, spaced apart from the first suspension in a downwards direction, and having a predetermined elasticity; and a second magnet fixed to the second suspension and spaced apart from the first suspension, wherein the first suspension and the second suspension have a plate shape, wherein at least one lateral surface of the first suspension is magnetized by the first permanent magnet, and wherein at least one lateral surface of the second suspension is magnetized by the second magnet. | 10-13-2011 |
| 20110272769 | MEMS MICROPHONE PACKAGE AND PACKAGING METHOD - A MEMS microphone package having improved acoustic properties, and to a packaging method, which involve adding a vent path in the packaging process to improve equilibrium between internal and external air pressure. The MEMS microphone package includes a MEMS microphone chip, in which a back plate and a diaphragm structure are formed in a body by using MEMS process techniques; a substrate for mounting the MEMS microphone chip thereon; a vent path which is formed between the MEMS microphone chip and the substrate by applying an adhesive only to a portion of the substrate and adhering the MEMS microphone chip to the substrate; and a case which is adhered to the substrate and forms a space for accommodating the MEMS microphone chip, wherein acoustic properties of the MEMS microphone package are improved as air pressure inside the MEMS microphone chip and air pressure outside the MEMS microphone chip form air equilibrium via the vent path. | 11-10-2011 |
Chang-Won Kim, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090022683 | Biodegradable and Thermosensitive Poly(Organophosphazene) Hydrogel, Preparation Method Thereof and Use Thereof - The present invention relates to a biodegradable and thermosensitive poly(organophosphazene) with a functional group, a preparation method thereof, and a use thereof for delivery of bioactive substances. According to the present invention, poly(organophosphazene) is a phosphagen-based polymer showing biodegradability, thermosensitivity, and sol-gel phase transition depending on temperature change, whereby when administered into a living body with bioactive substances such as drugs, the poly(organophosphazene) forms a gel-phase at body temperature to be capable of controlled release of the bioactive substances. Further, the poly(organophosphazene) has functional groups to chemically bind with bioactive substances through an ionic bond, covalent bond, or coordinate covalent bond to be capable of a sustained release of the bioactive substances due to its good binding property. Therefore, the poly(organophosphazene) is useful as a delivery material for bioactive substances. | 01-22-2009 |
| 20090181088 | THERMOSENSITIVE POLYPHOSPHAZENE-BIOACTIVE MOLECULE CONJUGATES, PREPARATION METHOD THEREOF AND USE THEREOF - The present invention relates to a poly(organophosphazene)-bioactive molecule conjugates in which biodegradable and thermosensitive poly(organophosphazene) with a functional group showing the sol-gel phase transition with change of temperature is combined with various bioactive molecules, such as drugs, a preparation method thereof, and a use thereof for delivery of bioactive molecules. | 07-16-2009 |
| 20090207274 | Apparatus and method for adjusting white balance in a digital imaging device - A method and apparatus for adjusting a white balance in a digital imaging device. The method including the steps of: analyzing a histogram of an image to which a white balance algorithm is to be applied; classifying the image, to which the white balance algorithm is to be applied, according to color distribution determination criteria; and the white balance algorithm is applied to the image in a customized manner based on results of the classification based on color distributions. The apparatus includes an image sensor unit for photographing a subject and for creating an original image; and an image processing unit for finding an achromatic color region through estimation of a color temperature of the original image, for extracting a white point of the achromatic color region, and for adjusting a white balance of the original image. | 08-20-2009 |
| 20110007969 | METHOD AND APPARATUS FOR CORRECTING LENS SHADING - A lens shading correction method and apparatus are provided for removing vignetting occurring in digital images due to lens shading. A white image captured by an image pickup device and an image pickup unit is separated into reference white images corresponding to color channels. A vignetting center having a maximum light intensity is estimated in each of the reference white images. Multiple reference segments on each of the reference white images are defined. A lens shading correction value corresponding to each pixel constituting the reference segments are calculated using a corresponding light intensity. A lens shading correction function corresponding to each reference segment is derived using a corresponding lens shading correction value. Vignetting of a general image received in a general image processing mode is removed, using the derived multiple lens shading correction functions. | 01-13-2011 |
Chang-Won Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110182255 | METHOD FOR TRANSMITTING AND RECEIVING ETHERNET DATA BETWEEN DIGITAL UNIT AND RF UNIT AND APPARATUS THEREOF - A method for transmitting Ethernet data in a Digital Unit (DU) that processes a baseband and interfaces with at least two Radio Frequency (RF) Units (RUs) is provided. The method includes setting location information of two or more Ethernet channels in a first subchannel of a radio frame, allocating the two or more Ethernet channels in second subchannels of the radio frame, using the location information, and transmitting the radio frame to the at least two RUs. | 07-28-2011 |
Chang-Won Park, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110042610 | METHOD FOR PREPARING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed is a method for preparing a cathode active material for a lithium secondary battery, and the preparing method includes: adding a phosphorus compound to a transition metal oxide dispersion liquid to prepare a coating liquid; drying the coating liquid to prepare a powder including phosphorus oxide coated on the surface of the transition metal oxide; and dry-mixing the powder coated with the phosphorus oxide with a lithium intercalation compound, and then firing the mixture to form a solid solution compound of Li-M | 02-24-2011 |
| 20110244329 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY HAVING THE SAME - Provided are a cathode active material for a lithium secondary battery and a lithium secondary battery including the same. The cathode active material includes a lithium composite oxide represented by the following Chemical Formula 1. | 10-06-2011 |
Chang-Won Park, Paju KR
| Patent application number | Description | Published |
|---|---|---|
| 20100084749 | Package and fabricating method thereof - A package and a fabricating method thereof are provided. The package includes a lead frame, a chip and a sealant. The lead frame has a notch and a plurality of first notch-side leads, a plurality of first notch-side pads, a plurality of second notch-side leads and a plurality of second notch-side pads. The first notch-side leads extend to a first side of the notch. The first notch-side pads are correspondingly disposed on the first notch-side leads. The second notch-side leads extend to a second side of the notch. The second notch-side pads are correspondingly disposed on the second notch-side leads. The sealant seals up the chip and the lead frame and exposes a lower surface of the lead frame. The notch exposes a portion of the sealant. | 04-08-2010 |
Chang-Won Song, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20110189974 | APPARATUS AND METHOD FOR REPORTING ACCIDENT IN PORTABLE TERMINAL - An apparatus and a method of accident reporting in a portable terminal are provided. The method of accident reporting includes displaying a plurality of dangerous situation classification codes on a screen upon selection of a menu for reporting occurrence of a danger, selecting at least one dangerous situation classification code among the plurality of dangerous situation classification codes, requesting an input of an authentication number with respect to transmission of the selected dangerous situation classification code, and if the authentication code is valid, transmitting to a destination a specific message including a description of the selected dangerous situation classification code. | 08-04-2011 |
| 20110235585 | APPARATUS AND METHOD FOR TRANSMITTING MESSAGE IN WIRELESS COMMUNICATION SYSTEM - An apparatus and a method for transmitting a message in a portable terminal are provided. The method includes determining message contents to send to at least one recipient terminal, determining a number of recipient terminals, when transmitting the message to at least two recipient terminals, determining identification information of at least two recipient terminals to which the message is transmitted, and transmitting a message which includes the identification information of the at least two recipient terminals and the message contents to the at least two recipient terminals. | 09-29-2011 |
Chang-Won Yun, Gwangmyeong KR
| Patent application number | Description | Published |
|---|---|---|
| 20090243944 | PORTABLE TERMINAL - A portable terminal is provided that includes a terminal body having a receiver, a ground unit connected to an antenna mounted at the terminal body, and an electric field reducing unit connected to the ground unit and partially transferring a current flowing in the ground unit to a side surface of the terminal body. The strength of the electric field formed at the periphery of the receiver of the portable terminal may be reduced, thus minimizing interference between the portable terminal and the hearing aid. | 10-01-2009 |