Patents by Inventor Chul Byun
Chul Byun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120244762Abstract: Disclosed herein is a floating structure with a fuel gas tank storing a gaseous fuel used as fuel in a dual fuel propulsion system disposed under a cargo space. According to the present invention, there is provided a floating structure with a fuel gas tank storing a gaseous fuel used as fuel and used while floating at sea, including: a fuel gas tank disposed in the hull of the floating structure; and a cargo space disposed on the top of the fuel gas tank on the upper deck of the floating structure.Type: ApplicationFiled: October 5, 2010Publication date: September 27, 2012Inventors: Sung Jun Lee, Yoon Chul Byun, Dong Kyu Choi
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Publication number: 20120206934Abstract: Disclosed are a light emitting diode package and a backlight unit having the same. The light emitting diode package includes a light emitting diode including generating a light in response to a driving voltage applied from the outside, first and second main leads connected to first and second electrodes, respectively, and a body section provided therein with the light emitting diode and fixes the first and second main leads thereto. The light emitting diode package includes a first sub-lead having one end portion connected to the first main lead, and a second sub-lead having one end portion connected to the second main lead and an opposite end portion spaced apart from an opposite end portion of the first sub-lead at a predetermined distance while facing the opposite end portion of the first sub-lead. The backlight unit includes a plurality of the light emitting diode packages.Type: ApplicationFiled: December 27, 2011Publication date: August 16, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyuk-Hwan KIM, Seokhyun NAM, Sijoon SONG, Yong Suk CHO, Sang-Chul BYUN
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Publication number: 20120153853Abstract: A backlight unit includes a driving circuit outputting a driving voltage, light source strings, a first feedback circuit, a first current control circuit, a second feedback circuit, and a second current control circuit. Each light source string includes light sources and receives the driving voltage to generate light. The first feedback circuit outputs a first control signal based on a measured current at input terminals of the light source strings. The first current control circuit receives the driving voltage and controls a strength of the current input at the input terminals based on the first control signal. The second feedback circuit outputs a second control signal based on a measured current at each output terminal of the light source strings. The second current control circuit controls a strength of a current output at each output terminal of the light source strings.Type: ApplicationFiled: June 30, 2011Publication date: June 21, 2012Inventors: BYOUNG DAE YE, Sang-Chul Byun, Jung-Hyun Yang
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Patent number: 8198822Abstract: A light source driving apparatus includes; a boosting part which boosts an input voltage received from an input part and generates a driving voltage, a boosting transistor which controls an operation of the boosting part, a rectification part connected between the boosting part and an output part and which transmits the driving voltage to the output part, an integrated circuit which generates a gate signal which controls the boosting transistor, and a protection circuit which generates a protection signal which controls a voltage level of the gate signal according to an output current of the boosting transistor.Type: GrantFiled: July 2, 2009Date of Patent: June 12, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Chul Byun, Gi-Cherl Kim, Byung-Choon Yang, Byoung-Dae Ye
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Publication number: 20110148940Abstract: A driving method for local dimming of a LCD device includes dividing a frame into a plurality of blocks corresponding to a plurality of dimming blocks of a backlight unit, calculating an average value of each color in a block by analyzing image data of the block and determining, for the block, a local dimming value of each color corresponding to the average value of the color, detecting a maximum value among the average values of respective colors in the block determining a luminance local dimming value corresponding to the maximum value in the block, driving a plurality of LEDs corresponding to the block in the backlight unit on a color basis according to the local dimming value of each color in the block, or a color basis using the same luminance local dimming value according to whether the block is a chromatic color area or an achromatic color area.Type: ApplicationFiled: August 5, 2010Publication date: June 23, 2011Inventors: Min-Chul BYUN, Heu me-II Baek
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Publication number: 20110069095Abstract: A backlight driving circuit for a display apparatus includes a receiver, a signal modulation detector and a driver. The receiver receives a clock signal and a brightness data signal by a serial transmission and in response to an enable signal. The brightness data signal is synchronized with the clock signal and includes brightness information. The signal modulation detector detects a modulation of the brightness data signal, based on at least one of the clock signal and the enable signal, and outputs a control signal based on a detected result thereof. The driver receives the brightness data signal, in synchronization with the clock signal, selects one of the brightness data signal and a predetermined reference brightness data signal in response to the control signal, generates a driving voltage using the selected brightness data signal, and provides the driving voltage to the backlight unit to control the brightness of the backlight unit.Type: ApplicationFiled: July 21, 2010Publication date: March 24, 2011Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Hyuk-Hwan KIM, Seki PARK, Byoung Dae YE, Dongmin YEO, Sang-Chul BYUN
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Publication number: 20110012521Abstract: In a display apparatus having a backlight unit, a light unit includes plural light source strings commonly connected to an output terminal of a boosting circuit to generate light in response to a light source driving voltage. The light source strings are grouped into plural light generating groups. Plural driving circuits are respectively connected to the light generating groups, and each driving circuit sequentially outputs feedback voltages from the light source strings of a corresponding light generating group. A minimum voltage detecting circuit compares the feedback voltages with each other from the driving circuits to detect a minimum voltage and outputs a control signal according to the detected minimum voltage. A voltage control circuit controls a voltage level of the light source driving voltage in response to the control signal. Accordingly, although the number of the driving circuits increases, power consumption used in each driving circuit may be reduced.Type: ApplicationFiled: January 19, 2010Publication date: January 20, 2011Inventors: Sang-Chul BYUN, Byoung Dae Ye, Yong-Hoon Kwon, Byungchoon Yang, Young-keun Lee
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Publication number: 20100194299Abstract: A method of driving a light source, a light source apparatus for performing the method, and a display apparatus having the light source apparatus are disclosed in accordance with one or more embodiments. In the method, a plurality of light source strings connected in parallel is driven by applying a driving voltage to a first terminal of the light source strings. A peak current due to a voltage deviation of each of the light source strings is switch-controlled to uniform an average current of the light source strings. Thus, a peak current flowing through light source strings in accordance with a voltage deviation of the light source strings is switch-controlled, so that an average current of the light source strings may be uniformly maintained. Therefore, a voltage deviation is not consumed as power, so that damage to circuit elements due to heat may be prevented.Type: ApplicationFiled: September 9, 2009Publication date: August 5, 2010Inventors: Byoung-Dae Ye, Gi-Cherl Kim, Byung-Choon Yang, Se-Ki Park, Sang-Chul Byun
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Publication number: 20100194285Abstract: A light source driving apparatus includes; a boosting part which boosts an input voltage received from an input part and generates a driving voltage, a boosting transistor which controls an operation of the boosting part, a rectification part connected between the boosting part and an output part and which transmits the driving voltage to the output part, an integrated circuit which generates a gate signal which controls the boosting transistor, and a protection circuit which generates a protection signal which controls a voltage level of the gate signal according to an output current of the boosting transistor.Type: ApplicationFiled: July 2, 2009Publication date: August 5, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Chul BYUN, Gi-Cherl KIM, Byung-Choon YANG, Byoung-Dae YE
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Publication number: 20100165248Abstract: Disclosed are a backlight unit and a liquid crystal display (LCD) device having the same. The backlight unit comprises an optical source for emitting light, a diffusion sheet for diffusing the light incident thereon from the optical source, a first prism sheet for enhancing brightness of the light diffused by the diffusion sheet to be incident thereon by collecting the light to the front side, a second prism sheet for re-collecting the light collected by the first prism sheet to the front side by refraction, and a micro lens film for refracting the light incident thereon from the second prism sheet.Type: ApplicationFiled: December 17, 2009Publication date: July 1, 2010Inventors: Jung-Hyun Ham, Heume-Il Baek, Jang-Un Kwon, Min-Chul Byun
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Publication number: 20100141163Abstract: A method of driving a light source includes; driving a plurality of light source strings in response to a plurality of driving signals, when a light source module having the plurality of light source strings connected in parallel with each other receives a driving voltage, detecting a detection voltage from channel input terminals of a multichannel current control part, wherein the multichannel current control part controls a resistance difference of the plurality of light source strings based on the plurality of driving signals, and controlling a level of the driving voltage via adjusting a current applied to a feedback terminal of a driving voltage generating part, wherein the driving voltage generating part generates the driving voltage.Type: ApplicationFiled: May 20, 2009Publication date: June 10, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Byoung-Dae YE, Gi-Cherl KIM, Byung-Choon YANG, Sang-Chul BYUN
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Patent number: 7726391Abstract: A vehicle air conditioner casing has defrost, face, and front seat floor vents variably communicating with a mixing chamber. Air passageways in the casing include an evaporator and heater core. A rear seat console vent communicates with a warm air passageway including the heater core and a cool air passageway through a console side cool air bypass passageway on the casing bottom surface, under the heater core. A front seat temperature adjusting door adjusts variably opens cool air passageway outlets and the warm air passageway with respect to the mixing chamber. A rear seat main temperature adjusting door variably opens warm air passageway inlets and the console side cool air bypass passageway. A rear seat auxiliary temperature variably adjusts the openings of warm air passageway outlets and the console cool air bypass passageway with respect to the rear seat console vent.Type: GrantFiled: January 27, 2006Date of Patent: June 1, 2010Assignee: Halla Climate Control Corp.Inventors: Yong-Eun Seo, Sang-Chul Byun, Sung-Ho Kang, Seong-Seok Han, Yong-Sang Kim
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Publication number: 20100123741Abstract: A method of driving a light source in a normal mode and an increased luminance mode, based on a gradation data of an image signal, by using driving blocks each having a plurality of light-emitting blocks, includes applying, during the increased luminance mode, both a first driving voltage which drives a first driving block of the driving blocks during the normal mode, and a second driving voltage which drives a second driving block of the driving blocks during the normal mode, to the first driving block to increase a luminance of the first driving block when the first driving block is driven by a luminance greater than a luminance corresponding to the gradation data of the image signal.Type: ApplicationFiled: November 5, 2009Publication date: May 20, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ho-Sik SHIN, Ju-Young YOON, Si-Joon SONG, Yong-Hoon KWON, Sang-Chul BYUN
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Publication number: 20100026201Abstract: A display device with improved display quality is provided. The display device includes an LED light source emitting light, a display panel receiving the light to display an image, and a backlight driver adjusting the magnitude and the duty ratio of an LED current I_LED flowing through the LED light source. The waveform of the LED current I_LED includes at least one of a rising section in which the magnitude of the LED current more gradually increases from a turn-off current value to a peak value, and a falling section in which the magnitude of the LED current more gradually decreases from the peak value to the turn-off current value. This acts to reduce waterfall noise.Type: ApplicationFiled: June 30, 2009Publication date: February 4, 2010Inventors: Sang-Chul Byun, Se-Ki Park, Byoung-Dae Ye, Eui-Jeong Kang, Yong-Hoon Kwon, Gi-Cherl Kim, Byung-Choon Yang
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Publication number: 20080276479Abstract: Disclosed is a hair dryer capable of improving convenience in handling, changing a temperature range of a blown air variously, and generating anions in the blown air. The hair dryer includes a manipulating panel (12) in which switches (S1,S2,S3,S4) are independently mounted, a first microprocessor (MPU1)(100) for transmitting an input signal input from each switch to a second microprocessor (MPU2)(200), and a second microprocessor (MPU2)(200) for controlling operation the driving motor according to the input signal and classifying a connection interval of electric current applied to the heating coil (C). The hair dryer allows a temperature range to be variously controlled, so the hair dryer may be utilized in more various fields, and because of using a single heating coil C, the hair dryer has very simple inner configuration, thereby reducing manufacture costs remarkably.Type: ApplicationFiled: November 4, 2004Publication date: November 13, 2008Applicants: BESTLOGIS CO., LTD.Inventors: Eul-Chul Byun, Heung-Geun Park, Won-Lee Joh
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Patent number: 7389780Abstract: A cosmetics keeping case for storing cosmetics and cosmetic tools which includes an upper movable body, a lower movable body, reception compartments for retaining a number of cosmetics inside the lower movable body and a tool reception element for safely receiving and storing the cosmetic tools, wherein the tool reception element is caused to part 30 elastically rotate by a distortion spring, to a stand up position to make the cosmetic tools accessible, and at the same time, by using a V-shaped spring mounted in the tool reception element to prevent the cosmetic tools from contacting the inner side of the upper movable body and to prevent the brush portions of the cosmetic tools from being pressed flat when the upper movable body is closed on the lower movable body.Type: GrantFiled: February 1, 2005Date of Patent: June 24, 2008Inventor: Young-Chul Byun
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Patent number: 7275885Abstract: A cosmetics brush for making-up face by applying air pressure generated by push-button to flow out a powdery cosmetics stored in a receptacle type body of the brush to the brush side, which includes the body containing the powdery cosmetics, an operational rod mounted with a plurality of mixing members to agitate and admix the powdery cosmetics in the body when the operational rod moves up and down, a filter mounted on top end of the operational rod to screen fine particles of the powdery cosmetics to allow the powdery cosmetics to flow out through inlet and outlet holes and a powder transfer tube to the brush side in optimum particle status and in an amount to be desired, and another brush for distributing the powdery cosmetics flowed out from the top end of the operational rod on the brush side in a desirable distribution, and the push-button with a locking and releasing function to prevent unexpected flowing-out of the powdery cosmetics when carrying the cosmetics brush with one.Type: GrantFiled: January 7, 2004Date of Patent: October 2, 2007Inventor: Young-Chul Byun
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Publication number: 20070177930Abstract: A cosmetics brush for making-up face by applying air pressure generated by push-button to flow out a powdery cosmetics stored in a receptacle type body of the brush to the brush side, which includes the body containing the powdery cosmetics, an operational rod mounted with a plurality of mixing members to agitate and admix the powdery cosmetics in the body when the operational rod moves up and down, a filter Anointed on top end of the operational rod to screen fine particles of the powdery cosmetics to allow the powdery cosmetics to flow out through inlet and outlet holes and a powder transfer tube to the brush side in optimum particle status and in an amount to be desired, and another brush for distributing the powdery cosmetics flowed out from the top end of the operational rod on the brush side in a desirable distribution, and the push-button with a locking and releasing function to prevent unexpected flowing-out of the powdery cosmetics when carrying the cosmetics brush with one.Type: ApplicationFiled: January 7, 2004Publication date: August 2, 2007Inventor: Young-Chul Byun
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Patent number: 7234474Abstract: A cosmetic brush for applying make-up which includes a brush member, a main body located at the lower portion of the brush member and a movable bar connected to an intermediate coupler and reciprocally disposed to generate air pressure and to discharge cosmetic powder from the main body to the brush member by pushing up the main body when applying the make-up, wherein the movable bar includes vertical grooves and a press-ring and can move up and down by pushing the main body combined with the intermediate coupler containing the movable bar, so that the cosmetic powder housed in the body is conveyed through a powder transport duct positioned at the top portion of an upper movable body through the vertical grooves in the movable bar formed on top portion of the intermediate coupler and then distributes the cosmetic to the brush member side in a desirable distribution, resulting in improved convenience for the make-up user with an easier and simpler operation.Type: GrantFiled: February 1, 2005Date of Patent: June 26, 2007Inventor: Young-Chul Byun
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Publication number: 20060263522Abstract: Disclosed therein is a method of chemical vapor deposition (CVD) with a showerhead through which a source material gas comprising a reactive gas of at least one kind and a purge gas is injected over a substrate to deposit a film on the substrate, including the steps of: disposing the showerhead in such a way that the bottom surface of the showerhead is spaced apart from the substrate by a predetermined distance; supplying a source material gas into the showerhead, wherein reactive gases of different kinds are respectively injected into compartments formed inside the showerhead in such a way that each compartment of the showerhead is filled with the reactive gas of only one kind and a purge gas of the source material gas is supplied into another compartment formed inside the showerhead; and discharging the reactive gas and the purge gas respectively through a large number of reactive gas outlets and a large number of purge gas outlets formed on the bottom surface of the showerhead, the purge gas outlets beingType: ApplicationFiled: May 17, 2006Publication date: November 23, 2006Applicant: Piezonics Co., Ltd.Inventor: Chul Byun