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Hyeon Cheol

Hyeon Cheol Cho, Gyeonggi-So KR

Patent application numberDescriptionPublished
20090044073BROADCAST RECEIVER AND METHOD OF PROCESSING DATA - A broadcast receiver and a method of processing data are disclosed. The broadcast receiver includes a signal receiving unit, a RS frame decoder, a decoding unit, a text-to-speech (TTS) module, a voice output unit, and a control unit. The signal receiving unit receives broadcast signal multiplexed mobile broadcast service data including text information and main broadcast service data. The RS frame decoder performs decoding on the RS frame, thereby correcting errors occurred in the corresponding mobile broadcast service data. The decoding unit decodes the text information included in the error-corrected mobile broadcast service data. The text-to-speech (TTS) module converts the text information to a voice signal. The voice output unit outputs the converted voice signal. The control unit controls the voice output unit.02-12-2009

Hyeon Cheol Cho, Gyeonggi KR

Patent application numberDescriptionPublished
20090042538METHOD FOR OBTAINING PACKET BILLING INFORMATION BASED ON SESSION INITIATION PROTOCOL - Disclosed is a method for controlling billing in a Session Initiation Protocol (SIP) call server The method includes the steps of: receiving an invite message from a calling SIP terminal; transmitting a (02-12-2009

Hyeon Cheol Choi, Haenam-Gum KR

Patent application numberDescriptionPublished
20100176379SELF-ALIGNED ORGANIC THIN FILM TRANSISTOR AND FABRICATION METHOD THEREOF - The present invention relates to a self-aligned organic thin film transistor (TFT) and a fabrication method thereof. According to the present invention, a gate electrode is formed from a first conductive layer patterned on a substrate, a gate dielectric layer is formed on top of the substrate to cover the gate electrode, and a second conductive layer is then formed on the gate dielectric layer. Subsequently, ultraviolet (UV) backside exposure for irradiating the second conductive layer with UV from a bottom side of the substrate using the gate electrode as a mask, and source/drain electrodes self-aligned with the gate electrode is then formed not to overlap with the gate electrode by developing the second conductive electrode. Thereafter, an organic semiconductor layer is formed between and on the source/drain electrodes. In the present invention, an organic TFT can be fabricated using a reel-to-reel process, and therefore, the fabrication process can be simplified.07-15-2010

Hyeon Cheol Shin, Daejeon KR

Patent application numberDescriptionPublished
20110091532COMPOSITION FOR THE TREATMENT OF ARTHRITIS CONTAINING A DIBENZO-P-DIOXIN DERIVATIVE AS THE ACTIVE INGREDIENT - Disclosed is a composition for treating arthritis containing a dibenzo-p-dioxin derivative as an active ingredient. This dibenzo-p-dioxin derivative is very effective in inhibiting NF-kB and AP-1 activity, alleviates the symptoms of degenerative arthritis and rheumatoid arthritis without irritating the skin or causing side effects, and can continue to exhibit improvement effects for a considerable period of time after discontinuation of treatment. Additionally, when the dibenzo-p-dioxin derivative is contained in liposomes, the composition of the invention exhibits much greater effects on treating arthritis by absorption through skin, and thus is useful for the treatment of degenerative arthritis and rheumatoid arthritis.04-21-2011

Hyeon-Cheol Choi, Chanwon-Si KR

Patent application numberDescriptionPublished
20120103449FLOW PATH SWITCHING VALVE - A flow path switching valve includes a tube body including one or more inlets opened to communicate with a fluid supplying source and supplying fluid into an inside of the tube body, outlets opened at opposite sides to the respective inlets and selectively alternately discharging fluid from the inside of the tube body, drains opened at opposite ends and discharging operating fluid introduced through the outlet, and seat units respectively protrude on an inner circumference of the tube body between the inlet(s), outlets and drains. An operating rod, coaxially mounted in the tube body, includes spaced apart projection units and is connected to an operating unit at one end so as to reciprocate axially within the tube body responsive to the operating unit. Valve bodies are movably disposed on an outer circumference of the operating rod and are arranged between the respective projection units to face respective seat units.05-03-2012

Hyeon-Cheol Kim, Yongin-Si KR

Patent application numberDescriptionPublished
20110260798SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - A semiconductor integrated circuit device includes: a substrate which has a first conductivity type and in which a first amplifier area and a second amplifier area are defined; a first well which has a second conductivity type, a first pocket well which has the first conductivity type and is separated from the first well, and a first deep well which has the second conductivity type, surrounds the first pocket well, and is separated from the first well; and a second well which has the second conductivity type, a second pocket well which has the first conductivity type and is separated from the second well, and a second deep well which has the second conductivity type, surrounds the second pocket well, and is separated from the second well The first well, the first pocket well, and the first deep well are formed in the first amplifier area of the substrate, and the second well, the second pocket well, and the second deep well are formed in the second amplifier area of the substrate.10-27-2011

Hyeon-Cheol Lee, Daejeon KR

Patent application numberDescriptionPublished
20100057278SYSTEM FOR AUTOMATICALLY LANDING AIRCRAFT USING IMAGE SIGNALS AND METHOD OF CONTROLLING THE SAME - Disclosed herein are a system for automatically landing an aircraft using image signals and a method of controlling the system. The system includes an altimeter installed on the aircraft; a landing mark placed at a landing location on a landing runway; a camera installed on the aircraft, oriented toward the front of the aircraft, and configured to detect the shape of the landing mark in image information form; and a FCC configured to calculate the angle between the aircraft and the ground, the ground range and the slant range between the aircraft and the landing location using the altitude information measured by the altimeter, the image information of the landing mark captured by the camera, angle information composed of the pitch, roll and yaw angles of the aircraft, and the angle of entry into the landing runway, and configured to control the automatic landing of the aircraft.03-04-2010
20110015810System for automatically landing aircraft using image signals and method of controlling the same - Disclosed herein are a system for automatically landing an aircraft using image signals and a method of controlling the system. The system includes an altimeter installed on the aircraft; a landing mark placed at a landing location on a landing runway; a camera installed on the aircraft, oriented toward the front of the aircraft, and configured to detect the shape of the landing mark in image information form; and a FCC configured to calculate the angle between the aircraft and the ground, the ground range and the slant range between the aircraft and the landing location using the altitude information measured by the altimeter, the image information of the landing mark captured by the camera, angle information composed of the pitch, roll and yaw angles of the aircraft, and the angle of entry into the landing runway, and configured to control the automatic landing of the aircraft.01-20-2011

Hyeon-Cheol Lee, Seoul KR

Patent application numberDescriptionPublished
20080261282Fermentation Process for Preparing Coenzyme Q10 by the Recombinant Agrobacterium tumefaciens - The present invention relates to a transformed 10-23-2008

Patent applications by Hyeon-Cheol Lee, Seoul KR

Hyeon-Cheol Lee, Dajeon KR

Patent application numberDescriptionPublished
20110166722ALTITUDE MEASUREMENT APPARATUS AND METHOD - Provided is an altitude measurement apparatus and method that may measure an altitude of an aircraft without using a separate altimeter. The altitude measurement apparatus may include a camera unit being provided to a vertical takeoff and landing (VTOL) aircraft to collect an image of a circular mark formed on the ground, and a calculation unit to calculate an altitude of the VTOL aircraft based on the collected image. Accordingly, the altitude measurement apparatus may measure the altitude using a simple structure such as the circular mark formed on the ground, and be configured at inexpensive costs.07-07-2011

Hyeon-Cheol Shin, Daejeon Metropolitan City KR

Patent application numberDescriptionPublished
20100184847COMPOSITIONS FOR SKIN PROTECTION AND IMPROVEMENT OF SKIN DISEASES CONTAINING THE DIBENZO-P-DIOXINE DERIVATIVES - The present invention relates to compositions for skin protection and improvement that contain dibenzo-p-dioxine derivatives as effective components. Since the compositions for skin protection and improvement that contain the dibenzo-p-dioxine derivative according to the present invention have excellent functions such as moisturizing and/or wrinkle prevention which are useful in prevention and improvement of various skin diseases, they can be extensively used as cosmetic ingredients or pharmaceutical agents for prevention and improvement of skin diseases.07-22-2010