Patents by Inventor Chan Hee Hong
Chan Hee Hong 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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Patent number: 11935876Abstract: A light-emitting element ink, a display device, and a method of fabricating the display device are provided. The light-emitting element ink includes a light-emitting element solvent, light-emitting elements dispersed in the light-emitting element solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film that surrounds parts of outer surfaces of the semiconductor layers, and a surfactant dispersed in the light-emitting element solvent, the surfactant including a fluorine-based and/or a silicon-based surfactant.Type: GrantFiled: April 27, 2021Date of Patent: March 19, 2024Assignee: Samsung Display Co., Ltd.Inventors: Jun Bo Sim, Duk Ki Kim, Yong Hwi Kim, Hyo Jin Ko, Chang Hee Lee, Chan Woo Joo, Jae Kook Ha, Na Mi Hong
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Publication number: 20240076768Abstract: There is disclosed a fine grained pure titanium having an equiaxed microstructure (a microstructure with an aspect ratio (i.e., the length of a major axis/the length of a minor axis fraction ratio) is less than 3) of 90% or more and an average grain size of 15 ?m or less, and a manufacturing method for the same.Type: ApplicationFiled: March 7, 2022Publication date: March 7, 2024Inventors: Chan-hee PARK, Jong-taek YEOM, Jae-keun HONG
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Patent number: 7310603Abstract: A voice control apparatus of a vacuum cleaner includes: a sense signal detector for detecting a sense signal provided from a user to provide a voice recognizable environment in an ambience; a voice command recognizing unit for temporarily stopping a driving of a motor upon receiving the detected sense signal and, at the same time, outputting a voice command control signal previously set in a voice command set corresponding to a voice command instructed by the user; and a driving command controller for controlling a function and a mode of a vacuum cleaner upon receiving the voice command control signal. By providing a voice recognizable environment, the vacuum cleaner can be effectively controlled through a user's voice command even in an environment with a strong noise.Type: GrantFiled: November 27, 2002Date of Patent: December 18, 2007Assignee: LG Electronics Inc.Inventors: Sung-Il Park, Chan-Hee Hong, Seong-Bin Lee, Hee-Suk Roh, Anatoli Tikhotski, Victor Redkov, Mikhail Sall, Andrei Viktorov, Alexandr Maiboroda, Valery Chernenko
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Patent number: 7171285Abstract: In a mobile robot and a method for measuring a moving distance thereof, by including an image capture unit for photographing the bottom surface according to motion of a mobile robot at a certain intervals and capturing images; a displacement measurer for measuring displacement about the captured image; and a microcomputer for outputting an actual moving distance by direction and motion of the mobile robot on the basis of the measured displacement value, it is possible to measure an accurate moving distance of the mobile robot with only one image sensor installed at the center of a body of the mobile robot, and accordingly it is possible to simplify a mechanical structure and facilitate maintenance and repairing.Type: GrantFiled: October 31, 2003Date of Patent: January 30, 2007Assignee: LG Electronics Inc.Inventors: Se Wan Kim, Chan Hee Hong
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Apparatus and method for detecting laundry weight in washing machine employing sensorless BLDC motor
Patent number: 6842928Abstract: An improved method for detecting a laundry weight in a washing machine employing a sensorless BLDC motor is provided. The motor is rotated until the washer reaches a first speed. The washer then operates in a torque control mode for a predetermined amount of time, and a laundry weight is then determined based on a speed of the motor after the predetermined amount of time has elapsed. In this manner, laundry weight can be accurately determined and the laundry can be effectively washed. Additionally, since a washing machine employing this improved method for detecting does not require a hall sensor and its peripheral circuit manufacture is simplified, and thus cost may be reduced.Type: GrantFiled: December 13, 2001Date of Patent: January 18, 2005Assignee: LG Electronics Inc.Inventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong -
Publication number: 20040210343Abstract: In a mobile robot and a method for measuring a moving distance thereof, by including an image capture unit for photographing the bottom surface according to motion of a mobile robot at a certain intervals and capturing images; a displacement measurer for measuring displacement about the captured image; and a microcomputer for outputting an actual moving distance by direction and motion of the mobile robot on the basis of the measured displacement value, it is possible to measure an accurate moving distance of the mobile robot with only one image sensor installed at the center of a body of the mobile robot, and accordingly it is possible to simplify a mechanical structure and facilitate maintenance and repairing.Type: ApplicationFiled: October 31, 2003Publication date: October 21, 2004Applicant: LG Electronics Inc.Inventors: Se Wan Kim, Chan Hee Hong
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Patent number: 6747435Abstract: Disclosed is an apparatus controlling an operation of a motor and control method thereof enabling to prevent a driving force of the motor from being reduced and actuate the motor for hours stably when a washing machine is operated for hours. The present invention includes the steps of detecting a phase voltage value and a phase current value applied to the motor between forward and backward revolution sections of the motor, calculating a phase resistance value based on the detected phase voltage and current values, and controlling the operation of the motor by controlling a voltage applied to the motor in accordance with the calculated phase resistance value.Type: GrantFiled: December 3, 2001Date of Patent: June 8, 2004Assignee: LG Electronics Inc.Inventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong
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Publication number: 20040034533Abstract: A voice control apparatus of a vacuum cleaner includes: a sense signal detector for detecting a sense signal provided from a user to provide a voice recognizable environment in an ambience; a voice command recognizing unit for temporarily stopping a driving of a motor upon receiving the detected sense signal and, at the same time, outputting a voice command control signal previously set in a voice command set corresponding to a voice command instructed by the user; and a driving command controller for controlling a function and a mode of a vacuum cleaner upon receiving the voice command control signal. By providing a voice recognizable environment, the vacuum cleaner can be effectively controlled through a user's voice command even in an environment with a strong noise.Type: ApplicationFiled: November 27, 2002Publication date: February 19, 2004Applicant: LG Electronics Inc.Inventors: Sung-Il Park, Chan-Hee Hong, Seong-Bin Lee, Hee-Suk Roh, Anatoli Tikhotski, Victor Redkov, Mikhail Sall, Andrei Viktorov, Alexandr Maiboroda, Valery Chernenko
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Apparatus and method for detecting laundry weight in washing machine employing sensorless BLDC motor
Publication number: 20030009832Abstract: A method for detecting a laundry weight in a washing machine employing a sensorless BLDC motor includes the steps of: determining whether a first predetermined time elapses after a motor is initiated and reaches a certain speed; and controlling the motor in a torque control mode when the first predetermined time elapses and detecting a laundry weight on the basis of the motor speed after a second predetermined time elapses. A laundry weight can be accurately measured and the laundry can be effectively washed even in an environment that a voltage is not regularly applied. In addition, since the laundry weight detecting apparatus of a washing machine employing the sensorless BLDC motor does not include a hall sensor and its peripheral circuit, its construction is simple and thus its price can be reduced.Type: ApplicationFiled: December 13, 2001Publication date: January 16, 2003Applicant: LG ElectronicsInventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong -
Publication number: 20030001537Abstract: Disclosed is an apparatus controlling an operation of a motor and control method thereof enabling to prevent a driving force of the motor from being reduced and actuate the motor for hours stably when a washing machine is operated for hours. The present invention includes the steps of detecting a phase voltage value and a phase current value applied to the motor between forward and backward revolution sections of the motor, calculating a phase resistance value based on the detected phase voltage and current values, and controlling the operation of the motor by controlling a voltage applied to the motor in accordance with the calculated phase resistance value.Type: ApplicationFiled: December 3, 2001Publication date: January 2, 2003Applicant: LG ELECTRONICS INC.Inventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong
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Patent number: 6172733Abstract: An LCD is adapted to be manufactured using a significantly reduced number of masks and masking processes. In order to form a gate of the LCD, aluminum and one of molybdenum, tantalum, tungsten and antimony are sequentially deposited and patterned using a single mask. Cutting a shorting bar for preventing static electricity is performed while a passivation layer is patterned and rinsed. Accordingly, an LCD produced by this method includes a first metal layer, which includes a first contact hole and is disposed on a substrate, a second metal layer which covers the first metal layer and includes a second contact hole which is smaller than the first contact hole, an insulating layer, which covers the second metal layer and includes a third contact hole larger than the second contact hole, and a pad, which includes a conductive layer contacting the second metal layer through the third contact hole on the insulating layer.Type: GrantFiled: September 2, 1998Date of Patent: January 9, 2001Assignee: LG.Philips LCD Co., Ltd.Inventors: Chan Hee Hong, Byoung Ho Lim, Jong Woo Kim, Hye Young Kim
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Patent number: 5784133Abstract: A liquid crystal display having a top plate and a bottom plate. The bottom plate includes a plurality of gate bus lines and a plurality of drain bus line arranged in a matrix on a substrate surface. A plurality of thin film transistors, each including a source, gate and drain, are formed at intersections of the gate and drain bus lines. A black matrix pattern, including a non-conductive black resin, is provided on the gate bus lines, the drain bus lines and the thin film transistors for shielding these elements from light generated by back lighting the display. A protective layer is formed on the black matrix pattern having contact holes for coupling the pixel electrodes to corresponding drain electrodes of the thin film transistors.Type: GrantFiled: October 3, 1997Date of Patent: July 21, 1998Assignee: LG Electronics Inc.Inventors: Jeong Hyun Kim, Chan Hee Hong
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Patent number: 5781254Abstract: A liquid crystal display having a top plate and a bottom plate. The bottom plate includes a plurality of gate bus lines and a plurality of drain bus line arranged in a matrix on a substrate surface. A plurality of thin film transistors, each including a source, gate and drain, are formed at intersections of the gate and drain bus lines. A black matrix pattern, including a non-conductive black resin, is provided on the gate bus lines, the drain bus lines and the thin film transistors for shielding these elements from light generated by back lighting the display. A protective layer is formed on the black matrix pattern having contact holes for coupling the pixel electrodes to corresponding drain electrodes of the thin film transistors.Type: GrantFiled: July 3, 1997Date of Patent: July 14, 1998Assignee: LG Electronics Inc.Inventors: Jeong Hyun Kim, Chan Hee Hong