Do Hwan
Do Hwan Choi, Gyeonggi-Do KR
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20140321654 | APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING VOICE SIGNAL THROUGH HEADSET - An apparatus and method are disclosed, which separates ambient noise from a voice signal in a Bluetooth headset with dual microphones, switches the connection path between the dual microphones and automatically controls output audio gain, based on the ambient noise. The method for outputting the voice signal includes receiving/comparing the first and second input signals from the first and second microphones, extracting the voice signal of substantially identical intensity from the first and second input signals, and transmitting the voice signal from the portable terminal communicating with the Bluetooth headset. | 10-30-2014 |
Do Hwan Hwang, Seoul KR
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20140069925 | AIRTIGHT CONTAINER FOR KEEPING FOOD - The present invention relates to an airtight container for preserving food, and more particularly, in order to make the molding of the container easy, reduce the manufacturing cost of the container while minimizing the fraction defective, and manufacture a tempered glass container which is not broken by collision among containers during production or distribution by making the thickness of the entire container uniform, the present invention provides an airtight container for preserving food comprising a container body wherein a lid with a locking member is detachably coupled on the upper portion on the peripheral surface and a space for food accommodation is provided therein, wherein a stumbling sill | 03-13-2014 |
Do Hwan Kang, Seoul KR
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20100318422 | METHOD FOR RECOMMENDING INFORMATION OF GOODS AND SYSTEM FOR EXECUTING THE METHOD - A method of recommending product information and a system for executing the method are provided. A method of recommending product information via an information recommendation agent installed in a user terminal, the method including the steps of: recognizing at least one product selected via the user terminal; receiving at least one of search data and condition data of the at least one product via the user terminal, associating the at least one of the search data and the condition data with the at least one product, and storing and maintaining the at least one of the search data and the condition data; searching for the product information of the at least one product by using the search data; and displaying the product information corresponding to the condition data via the user terminal. | 12-16-2010 |
Do Hwan Kim, Gwangju KR
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20110234118 | Complex Crystal Phosphor, Light Emitting Device, Surface Light Source Apparatus, Display Apparatus, and Lighting Device - A complex crystal phosphor is an inorganic composition containing at least an M element, an Al element, silicon, oxygen, and nitrogen. The inorganic composition has particles having at least two types of crystal phase, and the at least two types of crystal phase include a first crystal phase which is the same as a M | 09-29-2011 |
Do-Hwan Kim, Yongin-Shi KR
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20150226107 | COOLING APPARATUS OF BUS - A cooling system for a bus may include a heat dissipating plate mounted on a roof panel of a top of a bus and cooling heated fluid with wind, and an actuator connected to an air tank, selectively actuating the heat dissipating plate and adjusting an inclination angle between the heat dissipating plate and the roof panel. | 08-13-2015 |
Do-Hwan Kim, Buk-Gu Gwangju KR
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20140077687 | RED PHOSPHOR AND LIGHT-EMITTING DEVICE COMPRISING THE SAME - There is provided a red phosphor including a compound represented by an empirical formula A | 03-20-2014 |
Do-Hwan Kim, Hwaseong-Si KR
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20130101150 | Speaker Device For Mobile Terminal - A speaker device for use in a mobile terminal includes a speaker frame with a speaker unit mounted therein, and a frame cover provided at the rear side of the speaker frame to form a resonance space between the speaker frame and the frame cover. Sound that is output in a forward direction of the speaker unit is emitted to a front space of the speaker frame, and sound that is output to the rear of the speaker unit is emitted through the resonance space. The speaker device provides the resonance space at the rear side of the speaker frame to reinforce the output of midrange and bass tones, thereby reproducing the original sound as accurately as possible. The speaker device enables a user to enjoy vivid sound when reproducing a multimedia file or viewing a digital multimedia broadcast (DMB) program on a small-sized device, such as a mobile terminal. | 04-25-2013 |
Do-Hwan Kim, Gyeonggi-Do KR
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20140353468 | ISOLATION STRUCTURE AND METHOD FOR FORMING THE SAME, AND IMAGE SENSOR INCLUDING THE ISOLATION STRUCTURE AND METHOD FOR FABRICATING THE IMAGE SENSOR - An isolation structure and method of forming the same. The isolation structure includes a first isolation structure having including an insulation layer formed in a trench in a substrate and a second isolation structure, formed on the first isolation structure. The second isolation structure includes a first impurity region formed in the substrate, the first impurity region having a first impurity doping concentration, and a second impurity region that is formed around the first impurity region, the second impurity region having a second impurity doping concentration that is greater than the first doping concentration. | 12-04-2014 |
20140353469 | IMAGE SENSOR, SEMICONDUCTOR DEVICE AND IMAGE SENSOR SYSTEM - The present technology provides a semiconductor device that includes a substrate including an active region and an device isolation region, a plurality of micro insulation structures formed in the substrate of the device isolation region and spaced from each other, and an impurity region suitable for filling spaces between the micro insulation structures and for surrounding the micro insulation structures in the substrate of the device isolation region, and a method of fabricating the semiconductor device by improving a method of forming device isolation regions that insulate active regions. In particular, discontinuous micro insulation structures are suggested. | 12-04-2014 |
20150021604 | CMOS IMAGE SENSOR HAVING OPTICAL BLOCK AREA - A CMOS image sensor includes an active pixel structure suitable for sensing light incident from outside and converting a sensed light into an electrical signal, and an optical block structure suitable for blocking a visible light and passing a UV light to check and evaluate an electrical characteristic of the active pixel area. The UV pass filter includes first and second insulation layers comprising an insulator, and a metal layer formed between the first and second insulation layers. | 01-22-2015 |
20150061063 | IMAGE SENSOR AND METHOD FOR FABRICATING THE SAME - An image sensor may include a substrate having photoelectric conversion regions respectively formed on a plurality of pixels and charge trap regions overlapping with the respective photoelectric conversion regions and having depths or thicknesses that are different, for each of the respective pixel. | 03-05-2015 |
20150123226 | IMAGE SENSOR AND METHOD FOR FABRICATING THE SAME - An image sensor includes a photoelectric conversion region formed in a substrate, an interlayer insulation layer formed over a front side of the substrate, a carbon-containing layer doped with impurities and formed over a back side of the substrate, and a color filter and a micro-lens formed over the carbon-containing layer. | 05-07-2015 |
20150130003 | IMAGE SENSOR AND METHOD FOR FABRICATING THE SAME - An image sensor includes a substrate including photoelectric conversion regions, a magnetic layer disposed on a back side of the substrate and suitable for generating a magnetic field, and color filters and microlenses disposed on the magnetic layer. | 05-14-2015 |
20150145085 | IMAGE SENSOR AND METHOD FOR FABRICATING THE SAME - An image sensor includes a substrate including a pixel array region and a logic region where a surface of the pixel array region is higher than a surface of the logic region, and a light shielding pattern formed over the substrate of the logic region and having a surface on substantially the same plane as a surface of the substrate. | 05-28-2015 |
20150187835 | TRANSISTOR, IMAGE SENSOR INCLUDING THE SAME AND METHOD FOR FABRICATING THE SAME - A transistor includes a substrate and a gate insulation layer formed on the substrate having a negative charge storage layer with a fixed negative charge to induce a buried channel in the substrate. A gate electrode is formed on the gate insulation layer. | 07-02-2015 |