Patents by Inventor Kyung Hoon Lee
Kyung Hoon Lee 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: 20130059984Abstract: This disclosure relates to a method of preparing a metal nanobelt. According to the method, a metal nanobelt having various applicabilities, for example, capable of easily forming a conductive film or a conductive pattern with excellent conductivity, may be easily prepared by a simple process at room temperature and atmospheric pressure. The method comprises reacting a conductive polymer and a metal salt.Type: ApplicationFiled: March 10, 2011Publication date: March 7, 2013Applicant: LG CHEM LTDInventors: Won-Jong Kwon, Sung-Ho Yoon, Kyung-Hoon Lee
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Patent number: 8384095Abstract: Disclosed are an organic light emitting display device with improved yield and processing efficiency, which includes an interlayer capable of being separated into a hydrophilic region and a hydrophobic region on top of a hole injection layer in an organic light emitting device and a plurality of layers including a light emitting layer and which is fabricated without using a shadow mask, as well as a method for manufacturing the same. The manufacturing method includes preparing a substrate having a plurality of pixel regions defined in a matrix form, arranging an anode in each of the pixel regions, forming a hole injection layer on the anode by the solution process, forming an interlayer with hydrophobic properties on the hole injection layer by a solution process, selectively UV irradiating the interlayer to define a hydrophilic region on the interlayer, forming a light emitting layer on the interlayer by the solution process, and arranging a cathode on the substrate having the light emitting layer.Type: GrantFiled: December 21, 2009Date of Patent: February 26, 2013Assignee: LG Display Co. Ltd.Inventors: Kyung-Hoon Lee, Jong-Hyun Park, Tae-Han Park, Hyun-Cheol Jeong, Dong-Hee Yoo
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Publication number: 20120329636Abstract: The present invention relates to a belt-shaped metal nanostructure in which a wide surface area of catalytically active material can be realized even by a relatively small amount thereof so that it shows an excellent catalytic activity, and a method for preparing same. The belt-shaped metal nanostructure comprises a metal nanobelt containing the first metal and a conductive polymer, in the shape of a belt having a nanoscale thickness, a width larger than the thickness and a length larger than the width; and the second metal coupled to one or both planes of the metal nanobelt defined by said width and length.Type: ApplicationFiled: March 10, 2011Publication date: December 27, 2012Applicant: LG CHEM, LTD.Inventors: Won-Jong Kwon, Gyo-Hyun Hwang, Sang-Uck Lee, Hyuk Kim, Jung-Won Park, Sung-Ho Yoon, Kyung-Hoon Lee
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Publication number: 20120299669Abstract: A high-voltage wideband pulse load is provided. The high-voltage wideband pulse load includes an internal line, a dielectric substance, and an external housing. The internal line includes input terminal, connection electrode and a rod resistor. The resistance of the internal line linearly increases along the moving direction of an incoming pulse by the rod resistor. The dielectric substance is coupled to the internal line in a coaxial structure which covers the exterior of the internal line, and is configured to have a shape of a non-linearly decreasing external diameter along the moving direction so that impedance linearly decreases along the moving direction in contrast with the resistance of the internal line. The external housing is coupled to the dielectric substance in a coaxial structure which covers the exterior of the dielectric substance, and is formed of metal.Type: ApplicationFiled: December 15, 2011Publication date: November 29, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung-Kab RYU, Kyung-Hoon LEE
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Publication number: 20120289083Abstract: A high-voltage coaxial cable and a connector are provided. The connector includes inner connector electrode, a connector dielectric enclosing an inner connector electrode, and an external connector housing. The inside electrode of a connector is provided with a tapped hole in one side thereof. The tapped hole corresponds to the threaded single core of a high-voltage coaxial cable. The inside electrode of a connector is selectively assembled with and separated from the high-voltage coaxial cable by selectively screwing the threaded single core into and away from the tapped hole. The connector dielectric is formed along the circumferential surface of the inside electrode, and is provided with a coupling portion. The coupling portion couples the connector with another connector, and is formed to a preset depth in a corrugated shape. The connector housing is formed in a shape that surrounds the connector dielectric.Type: ApplicationFiled: December 20, 2011Publication date: November 15, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung-Kab RYU, Kyung-Hoon LEE
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Publication number: 20120268855Abstract: A surge protection apparatus is provided. The surge protection apparatus includes a non-linear element unit, a signal generation unit, and a switching element unit. The non-linear element unit enables an electrical surge to pass therethrough by rapidly decreasing resistance of the non-linear element unit when the difference in voltage between two ends of the non-linear element unit is equal to or greater than a predetermined value. The signal generation unit generates a control signal in response to current which passes through the non-linear element unit. The switching element unit switches the status thereof in response to the control signal.Type: ApplicationFiled: December 15, 2011Publication date: October 25, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kwang-Uk CHU, Up NAMKOONG, Kyung-Hoon LEE
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Patent number: 8223008Abstract: Provided are a device and method for detecting a wiretapping device using a power line and nullifying the wiretapping device. More particularly, a device and method for preventing wiretapping, which sense a wiretapping signal from a power line and transmit a noise signal to the power line, are provided. The device for preventing wiretapping includes: a signal detector for receiving signals from a power line and filtering the received signals in at least one frequency band; a controller for receiving the filtered signal from the signal detector and determining whether a wiretapping signal exists; and a noise signal output unit for transmitting a noise signal to the power line according to whether or not the wiretapping signal exists. The device can detect wiretapping and simultaneously nullify the function of the wiretapping device by detecting a wiretapping signal from a power line and transmitting a noise signal having a frequency corresponding to a frequency band of the wiretapping signal.Type: GrantFiled: April 14, 2008Date of Patent: July 17, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Kyung Hoon Lee, In Ho Hwang, Sea Hoon Ju, Seung Kab Ryu, Jin Chun Wang
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Publication number: 20120086528Abstract: Provided is a high voltage wideband pulse attenuator having an attenuation value self-correction function. The high voltage wideband pulse attenuator includes an input unit for receiving a pulse signal, a T-shaped attenuator circuit for attenuating the pulse signal, an output unit for outputting the pulse signal attenuated by the attenuator circuit, and a capacitive divider circuit for dividing a voltage of the pulse signal input through the input unit or the pulse signal attenuated by the attenuator circuit. Using the capacitive divider circuit, the high voltage wideband pulse attenuator can easily measure an error of an attenuation value caused by a change in the resistance of T-shaped array resistor units in a process of attenuating an input pulse signal of tens of kV or more. In particular, the pulse attenuator can measure its performance by itself without test assisting devices, and check a state of an attenuated pulse in real-time.Type: ApplicationFiled: June 24, 2011Publication date: April 12, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung Kab Ryu, Kyung Hoon Lee
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Publication number: 20120012761Abstract: Provided is a high-power pulse-signal radiation system. The system includes a pulse generating unit, a pulse radiation unit, a remote control unit, and a photoelectric conversion unit. The pulse generating unit use a DC power supply as a primary source, generate a pulse signal, and transmit a pulse signal to a radiation unit of an antenna through a high power coaxial cable. The pulse radiation unit receives the pulse signal generated by the pulse generating unit and radiates pulse energy corresponding to the pulse signal in a space. The remote control unit transmits an electric control signal required for controlling operation of the pulse generating unit.Type: ApplicationFiled: June 24, 2011Publication date: January 19, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seung Kab Ryu, Kyung Hoon Lee
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Patent number: 8026759Abstract: A multistage amplifying circuit includes a first amplifying circuit that either samples a first analog voltage input or amplifies a difference between the first analog voltage and a first digital voltage converted from the first analog voltage, in response to a control signal. A second amplifying circuit either samples a second analog voltage input or amplifies a difference between the second analog voltage and a second digital voltage converted from the second analog voltage, in response to the control signal. A common amplifier receives output voltages of the first amplifying circuit and the second amplifying circuit and either resets the output voltage of the first amplifying circuit and determines an output voltage by using the second amplifying circuit, or resets the output voltage of the second amplifying circuit and determines an output voltage by using the first amplifying circuit, in response to the control signal.Type: GrantFiled: July 22, 2010Date of Patent: September 27, 2011Assignees: Samsung Electronics Co., Ltd., Sogang UniversityInventors: Michael Choi, Ho-jin Park, Eun-seok Shin, Kyoung-jun Moon, Seung-hoon Lee, Kyung-hoon Lee, Young-ju Kim, Se-won Lee, Beom-soo Park
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Patent number: 7953222Abstract: Provided are a method and apparatus for partially encrypting speech packets, more specifically, a method and apparatus for selecting partial encryption sets used for a partial encryption technique in which compressed speech packets are partially encrypted to obtain the same effect as a full encryption technique. The method includes the steps of: (a) compressing respective speech files stored in a large-capacity speech database into the speech packets using a speech codec; (b) measuring single-bit loss distortion and sequential-bit loss distortion of the speech packets compressed in step (a); (c) generating standards for selecting partial encryption sets based on the measurement results of the single-bit loss distortion and sequential-bit loss distortion; (d) selecting the partial encryption sets according to the generated standards; and (e) encrypting the speech packets using the selected partial encryption sets.Type: GrantFiled: March 11, 2008Date of Patent: May 31, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Hae Yong Yang, Kyung Hoon Lee, Sang Han Lee
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Patent number: 7936141Abstract: A motor driver system includes an excess current sensing device configured to compensate a sensing value depending on a temperature of a motor, and to output the compensated sensing value, the sensing value being obtained from a current value associated with the motor; and a controller configured to stop the motor when the compensated sensing value exceeds a preset excess value.Type: GrantFiled: November 27, 2007Date of Patent: May 3, 2011Assignee: LG Electronics Inc.Inventors: Kyung Hoon Lee, June Hee Won, Gil Su Lee, Jun Ho Ahn, Jae Yoon Oh
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Publication number: 20110037520Abstract: A multistage amplifying circuit includes a first amplifying circuit that either samples a first analog voltage input or amplifies a difference between the first analog voltage and a first digital voltage converted from the first analog voltage, in response to a control signal. A second amplifying circuit either samples a second analog voltage input or amplifies a difference between the second analog voltage and a second digital voltage converted from the second analog voltage, in response to the control signal. A common amplifier receives output voltages of the first amplifying circuit and the second amplifying circuit and either resets the output voltage of the first amplifying circuit and determines an output voltage by using the second amplifying circuit, or resets the output voltage of the second amplifying circuit and determines an output voltage by using the first amplifying circuit, in response to the control signal.Type: ApplicationFiled: July 22, 2010Publication date: February 17, 2011Inventors: MICHAEL CHOI, Ho-jin Park, Eun-seok Shin, Kyoung-jun Moon, Seung-hoon Lee, Kyung-hoon Lee, Young-ju Kim, Se-won Lee, Beom-soo Park
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Patent number: 7876018Abstract: A synchronous reluctance motor comprises a stator and a rotor, the rotor comprising: a rotation shaft; a first core having a shaft hole for inserting the rotation shaft at a center thereof, and having a plurality of first flux barrier groups arranged along a circumferential direction of the shaft hole and spacing from each other; and a second core having a receiving hole larger than the shaft hole at a center thereof, and stacked at one side of the first core in an axial line direction. A length of the rotor protruding from a supporting portion can be decreased without reducing a stacked thickness thereof, and a vibration occurrence in a horizontal direction with respect to the rotation shaft can be reduced, thereby enhancing a reliability of the synchronous reluctance motor.Type: GrantFiled: November 1, 2006Date of Patent: January 25, 2011Assignee: LG Electronics Inc.Inventors: Jae-Yoon Oh, Kyung-Hoon Lee, June-Hee Won, Gil-Su Lee, Hyun-Hun Shin, Dal-Ho Cheong, Jun-Ho Ahn
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Patent number: 7868502Abstract: A BLDC motor is provided. The BLDC motor includes a stator having a plurality of teeth formed at an inside thereof, a plurality of coils, each of the plurality of coils being wound around a corresponding tooth of the stator, a rotor located at the inside of the stator, a plurality of magnets located at an edge portion of the rotor, a plurality of magnet placement portions located on the rotor, each magnet placement portion having a first and second barrier formed at opposite ends of the magnet placement portion, the first barrier and second barrier of adjacent magnet placement portions being separated by a gap portion, each of the plurality of magnets being inserted into a corresponding magnet placement portion, and at least one of the gap portions includes a third barrier located therein. A rotor and fan motor including a plurality of barriers formed on the rotor are also provided.Type: GrantFiled: January 16, 2009Date of Patent: January 11, 2011Assignee: LG Electronics Inc.Inventor: Kyung Hoon Lee
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Patent number: 7852040Abstract: A motor driver system and its control methods are discussed. Even when a command magnetic flux decreases as a motor operates in a field weakening region, a current angle can be maintained always below a limit value, thereby obtaining the stability of the motor control.Type: GrantFiled: November 16, 2007Date of Patent: December 14, 2010Assignee: LG Electronics Inc.Inventors: Kyung Hoon Lee, June Hee Won, Gil Su Lee, Jun Ho Ahn, Jae Yoon Oh
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Patent number: 7851960Abstract: A synchronous reluctance motor is described. The synchronous reluctance motor includes a core configured to rotate about a central axis and having first and second groups of flux barriers formed therein. Each flux barrier is defined as an opening in the core. Each of the first and second groups includes a first flux barrier and a second flux barrier with the second flux barrier disposed outside the first flux barrier in a radial direction from the central axis of the core. Each of the second flux barriers of the first and second groups has at least two connection parts crossing the opening of the second flux barrier.Type: GrantFiled: November 20, 2007Date of Patent: December 14, 2010Assignee: LG Electronics Inc.Inventors: Kyung Hoon Lee, Jun Ho Ahn
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Publication number: 20100288290Abstract: A TemporoMandibular Joint (TMJ) balancing appliance and a method for using the same are provided, in which a first base portion accommodates incisor teeth, a second base portion is extended from a left side of the first base portion and accommodates left molar teeth, and a third base portion is extended from a right side of the first base portion and accommodates right molar teeth. The first base portion includes an upper part for accommodating upper incisor teeth and a lower part for accommodating lower incisor teeth and has a center for accommodating the upper and lower incisor teeth higher than the left and right sides.Type: ApplicationFiled: February 12, 2010Publication date: November 18, 2010Applicant: JINBIOTECH CO., LTD.Inventors: Young-Jun Lee, Hwa-Jeong Lee, Kyung-Hoon Lee
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Patent number: D659691Type: GrantFiled: July 26, 2011Date of Patent: May 15, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hae-Jin Kim, Lala Laporta, Kyung-Hoon Lee
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Patent number: D674431Type: GrantFiled: May 3, 2011Date of Patent: January 15, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hae-Jin Kim, Lala Laporta, Kyung-Hoon Lee