Donghun
Donghun Heo, Seoul KR
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20140084888 | POWER SUPPLY CIRCUIT AND HYSTERESIS BUCK CONVERTER - A power supply unit converting a DC power supply using an inductor includes a feedback circuit dividing an output voltage being output from a first end of the inductor to convert the output voltage into a first feedback voltage; a differentiator differentiating the first feedback voltage to convert the first feedback voltage into a second feedback voltage; a hysteresis comparator comparing a level of the second feedback voltage with a reference voltage band to output a comparison signal; and a switch pulling an input voltage up or pulling the input voltage down to the second end of the inductor with reference to the comparison signal. | 03-27-2014 |
Donghun Kang, Gyoenggi-Do KR
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20120146489 | DEVICE COMPRISING AN ORGANIC LIGHT EMITTING DISPLAY - The invention relates to a sandwich structure ( | 06-14-2012 |
20120268762 | DOCUMENT WITH AN INTEGRATED DISPLAY AND METHOD OF MANUFACTURE THE SAME - A method of manufacturing a document ( | 10-25-2012 |
Donghun Kim, Seoul KR
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20140132152 | LIGHTING APPARATUS - A lighting apparatus having a magnetron configured to generate microwaves, a waveguide including a wave guide space configured to introduce and guide the microwaves and an aperture to discharge the microwaves, a resonator to which the microwaves are transmitted through the aperture, and a bulb located in the resonator, the bulb encapsulating a light emitting material and configured to emit light based on the transmitted microwaves is provided. The apparatus also includes a reflective member or optical member located in the resonator such that light emitted from the bulb towards the aperture is reflected away from the aperture. | 05-15-2014 |
20140132153 | LIGHTING APPARATUS - A lighting apparatus is provided that includes a magnetron configured to generate microwaves having a predetermined frequency, a waveguide including a first wave guide space configured to introduce and guide the microwaves and a second wave guide space expanded from the first wave guide space, a resonator to which the microwaves are transmitted from the waveguide and a bulb located in the resonator, the bulb encapsulating a light emitting material and being configured to emit light in response to the transmitted microwaves. The second wave guide space is located in a transmission path of the microwaves transmitted from the magnetron to the resonator. | 05-15-2014 |
Donghun Lee, Daejeon KR
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20130269585 | UNDERWATER MOVING APPARATUS AND MOVING METHOD THEREOF - Disclosed are an underwater moving apparatus and a moving method thereof. The underwater moving apparatus of an exemplary embodiment of the present invention includes a body; a propelling device installed on a rear side of the body; a thruster unit including an up and down directional thruster and a left and right directional thruster installed at the body; and a plurality of leg units positioned at both side portions of the body and including a multi-joint module. | 10-17-2013 |
Donghun Lee, Gyeongsangbuk-Do KR
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20150144969 | LIGHT EMITTING DIODE PACKAGE, LIGHT SOURCE MODULE AND BACKLIGHT UNIT INCLUDING THE SAME - A light emitting diode package, a light source module and a backlight unit including the same are provided. A plurality of light emitting diode packages are arranged on a printed circuit board without interference therebetween, by forming lines therein. | 05-28-2015 |
Donghun Lee, Gwangju KR
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20130087552 | METHOD OF PREPARING CARBON-CARBON COMPOSITE FIBERS, AND CARBON HEATING ELEMENT AND CARBON HEATER PREPARED BY USING THE FIBERS - Provided is a method of preparing carbon-carbon composite fibers including forming a mixed solution including a carbon precursor and an organic solvent, dipping carbon fibers in the mixed solution, and performing a heat treatment on the dipped carbon fibers to convert the carbon precursor into a carbon material and impregnating the carbon fibers with the carbon material. | 04-11-2013 |
Donghun Lee, Seoul KR
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20130119323 | CATHODE ACTIVE MATERIAL FOR SECONDARY BATTERY - Disclosed is a cathode active material for secondary batteries comprising, a compound having a transition metal layer containing lithium as at least one compound selected from the following Formula 1: Li(Li | 05-16-2013 |
20130119325 | CATHODE FOR SECONDARY BATTERY - Disclosed is a cathode for secondary batteries comprising a compound having a transition metal layer containing lithium as at least one compound selected from the following formula 1: (1−x)Li(Li | 05-16-2013 |
20130122363 | CATHODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a cathode active material for secondary batteries comprising at least one compound selected from the following formula 1: (1−s−t)[Li(Li | 05-16-2013 |
20140188275 | WEARABLE ROBOT AND CONTROL METHOD THEREOF - Disclosed herein is a wearable robot with improved operability and mobility through improvement of the upper limb structure thereof. The wearable robot includes an upper limb muscular power assist device to perform an articulation motion with a predetermined degree of freedom, the upper limb muscular power assist device being wearable by a user, and a mobile platform connected to the upper limb muscular power assist device to move according to information regarding movement speed and movement direction of the user in a rolling fashion. Consequently, mobility of the wearable robot and operation efficiency of the user are improved. | 07-03-2014 |
Donghun Lee, Goyang-Si KR
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20140307219 | METHOD OF MANUFACTURING DISPLAY APPARATUS - A method of manufacturing a display apparatus, includes disposing a first sealing material along an edge of a first substrate, disposing a second sealing material in a first area disposed at a side of the first sealing material, disposing liquid crystal on the first substrate, disposing a second substrate on the first substrate, curing the first sealing material and the second sealing material to seal the liquid crystal between the first substrate and the second substrate, and disposing an image capturing device in association with the first area of the first substrate. The second sealing material is disposed on the first substrate along imaginary lines. Each imaginary line includes a start point and an end point. The second sealing material is disposed, in association with each imaginary line, from a respective start point toward a respective end point. | 10-16-2014 |
Donghun Lee, Yongin-Si KR
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20100177213 | Integrator, delta-sigma modulator, analog-to-digital converter and applications thereof - In one embodiment, the modulator in an analog-to-digital converter includes a first reset switch and second reset switch, each controlled by a reset signal. The first reset switch is connected in a first reset feedback path between an input and an output of an integrator stage, and the second reset switch connected in a second reset feedback path between the input and the output of the integrator stage. | 07-15-2010 |
Donghun Park, Gyeonggi-Do KR
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20130081073 | METHOD AND APPARATUS FOR PROVIDING AND OBTAINING REWARD SERVICE LINKED WITH MEDIA CONTENTS - Provided are a method and apparatus for providing and obtaining a reward service linked with media contents. The method includes transmitting reward service information linked with the media contents to a user device, receiving check-in information authenticating that certain media contents are being played, determining whether a provision condition of the reward service is satisfied, and granting a use right with respect to the reward service to the user device when the provision condition of the reward service is satisfied. Herein, user utility with respect to media contents are improved and user information of the media contents are collected. | 03-28-2013 |
20130097159 | SYSTEM AND METHOD FOR PROVIDING INFORMATION REGARDING CONTENT - A system and method is provided that collects and analyzes social media data and provides information regarding content that are popular to users or attract attention. The method includes creating a keyword related to the content; | 04-18-2013 |
Donghun Yu, Gyeongsangbuk-Do KR
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20140240257 | ELECTRONIC DEVICE HAVING TOUCH-SENSITIVE USER INTERFACE AND RELATED OPERATING METHOD - A method and electronic device are provided to process a touch screen event detected from a touch screen and to process an input key event detected from an input key installed near the touch screen panel. The electronic device detects an input key event from an input key, detects a touch screen event from the touch screen within a given time after the detection of the input key event, and performs a function corresponding to the touch screen event while ignoring the input key event. | 08-28-2014 |