Patents by Inventor Hyun Deok Kim
Hyun Deok Kim 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: 11949044Abstract: A display device and a method of manufacturing the same are provided. The display device includes a first alignment electrode and a second alignment electrode spaced apart from each other, a light emitting element between the first alignment electrode and the second alignment electrode, a first auxiliary electrode at a first side of the light emitting element in a plan view, and separated from the first alignment electrode, and a second auxiliary electrode at a second side of the light emitting element in a plan view, and separated from the second alignment electrode, wherein an alignment signal is configured to be applied to the first alignment electrode, and wherein a first auxiliary signal of a phase that is different from a phase of the alignment signal is configured to be applied to the first auxiliary electrode.Type: GrantFiled: October 5, 2021Date of Patent: April 2, 2024Assignee: Samsung Display Co., Ltd.Inventors: Buem Joon Kim, Hyun Deok Im
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Publication number: 20240097083Abstract: A light emitting device includes: a base substrate; a plurality of unit regions provided on the base substrate; a barrier disposed at a boundary of the unit regions to surround each of the unit regions; a dam disposed in each of the unit regions to be spaced apart from the barrier; a first electrode provided in each of unit light emitting regions surrounded by the dam; a second electrode disposed in each of the unit light emitting regions, the second electrode of which at least one region is provided opposite to the first electrode; and one or more LEDs provided in each of the unit light emitting regions, the one or more LEDs being electrically connected between the first electrode and the second electrode.Type: ApplicationFiled: November 27, 2023Publication date: March 21, 2024Inventors: Hyun Deok IM, Jong Hyuk KANG, Dae Hyun KIM, Joo Yeol LEE, Hyun Min CHO
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Publication number: 20240088198Abstract: A display device comprises a first electrode, a second electrode disposed to be spaced apart from the first electrode and face the first electrode, a first insulating layer disposed to cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer and exposing at a part of a region where the first electrode and the second electrode overlaps the first insulating layer and at least one light emitting element on the exposed first insulating layer between the first electrode and the second electrode, wherein the second insulating layer includes at least one opening exposing the first insulating layer and disposed to be spaced apart from each other on a region where the first electrode and the second electrode face each other, and a bridge portion between the openings, and the light emitting element is disposed on the opening.Type: ApplicationFiled: November 13, 2023Publication date: March 14, 2024Inventors: Hyun Min CHO, Dae Hyun KIM, Jin Oh KWAG, Dong Hyun KIM, Keun Kyu SONG, Hyun Deok IM, Sung Chan JO
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Patent number: 11382698Abstract: A surgical navigation system according to one embodiment may comprise: an electromagnetic wave generation unit; a first detection unit attached to a surgical site of an object to detect a position attached to the surgical site; a second detection unit installed in a patient-specific surgical guide instrument inserted into the surgical site to receive the electromagnetic wave and detect the position of the patient-specific surgical guide instrument; a third detection unit installed in the surgical instrument inserted into the surgical site to detect the position of the surgical instrument; an information processing unit for registering the position of the first detection unit and the position of the third detection unit and for tracking the position of the surgical instrument on the basis of the position of the first detection unit attached to the surgical site, by setting the position of the patient-specific surgical guide instrument as a reference position when the patient-specific surgical guide instrumentType: GrantFiled: October 18, 2017Date of Patent: July 12, 2022Assignees: Kyungpook National University Industry-Academic Cooperation Foundation, Korea Advanced Institute of Science and TechnologyInventors: Jun Young Kim, Min Kyu Je, Anna Seo, Shin Yoon Kim, Hyun Deok Kim, Hyun Mun Kim
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Publication number: 20210100621Abstract: A surgical navigation system for registering coordinates of a patient-customized tool, according to one embodiment, comprises: an electromagnetic wave generation unit for generating an electromagnetic wave; an electromagnetic sensor provided in a patient-customized tool and including a coil through which the electromagnetic wave passes; and a processing unit for calculating the position and the orientation of the electromagnetic sensor on the basis of magnetic flux, which is interlinked with the coil, and calculating the position and the orientation of the patient-customized tool on the basis of the position and the orientation of the electromagnetic sensor.Type: ApplicationFiled: December 12, 2018Publication date: April 8, 2021Inventors: Jun Young KIM, Shin Yoon KIM, Anna SEO, Hyun Mun KIM, Hyun Deok KIM, Min Kyu JE, Jae Suk CHOI
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Publication number: 20190274762Abstract: A surgical navigation system according to one embodiment may comprise: an electromagnetic wave generation unit; a first detection unit attached to a surgical site of an object to detect a position attached to the surgical site; a second detection unit installed in a patient-specific surgical guide instrument inserted into the surgical site to receive the electromagnetic wave and detect the position of the patient-specific surgical guide instrument; a third detection unit installed in the surgical instrument inserted into the surgical site to detect the position of the surgical instrument; an information processing unit for registering the position of the first detection unit and the position of the third detection unit and for tracking the position of the surgical instrument on the basis of the position of the first detection unit attached to the surgical site, by setting the position of the patient-specific surgical guide instrument as a reference position when the patient-specific surgical guide instrumentType: ApplicationFiled: October 18, 2017Publication date: September 12, 2019Inventors: Jun Young KIM, Min Kyu JE, Anna SEO, Shin Yoon KIM, Hyun Deok KIM, Hyun Mun KIM
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Patent number: 8798478Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.Type: GrantFiled: March 7, 2011Date of Patent: August 5, 2014Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang Hee Lee, Hyun Deok Kim
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Patent number: 8326151Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.Type: GrantFiled: March 7, 2011Date of Patent: December 4, 2012Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang Hee Lee, Hyun Deok Kim
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Publication number: 20110211838Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.Type: ApplicationFiled: March 7, 2011Publication date: September 1, 2011Inventors: Chang Hee LEE, Hyun Deok Kim
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Publication number: 20110211839Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.Type: ApplicationFiled: March 7, 2011Publication date: September 1, 2011Inventors: Chang Hee LEE, Hyun Deok Kim
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Patent number: 7903979Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.Type: GrantFiled: July 27, 2006Date of Patent: March 8, 2011Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang Hee Lee, Hyun Deok Kim
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Patent number: 7613398Abstract: The present invention relates to a wavelength-tunable light source whose output wavelength can be externally controlled and a wavelength-division multiplexed transmission system using the source. A wavelength-tunable light source in accordance with the present invention is constituted to be able to vary the output wavelength of a Fabry-Perot laser diode, that is wavelength-locked to an injected light, by controlling the wavelength of the injected light. A wavelength-tunable light source in accordance with the present invention provides comparatively large output power and excellent economic features. The present invention also presents a wavelength-division multiplexed transmission system using, the wavelength-tunable light source.Type: GrantFiled: December 21, 2007Date of Patent: November 3, 2009Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang-Hee Lee, Hyun Deok Kim
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Publication number: 20080232805Abstract: The present invention relates to a wavelength-tunable light source whose output wavelength can be externally controlled and a wavelength-division multiplexed transmission system using the source. A wavelength-tunable light source in accordance with the present invention is constituted to be able to vary the output wavelength of a Fabry-Perot laser diode, that is wavelength-locked to an injected light, by controlling the wavelength of the injected light. A wavelength-tunable light source in accordance with the present invention provides comparatively large output power and excellent economic features. The present invention also presents a wavelength-division multiplexed transmission system using, the wavelength-tunable light source.Type: ApplicationFiled: December 21, 2007Publication date: September 25, 2008Inventors: Chang-Hee Lee, Hyun Deok Kim
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Patent number: 7349631Abstract: The present invention relates to a wavelength-tunable light source whose output wavelength can be externally controlled and a wavelength-division multiplexed transmission system using the source. A wavelength-tunable light source in accordance with the present invention is constituted to be able to vary the output wavelength of a Fabry-Perot laser diode, that is wavelength-locked to an injected light, by controlling the wavelength of the injected light. A wavelength-tunable light source in accordance with the present invention provides comparatively large output power and excellent economic features. The present invention also presents a wavelength-division multiplexed transmission system using the wavelength-tunable light source.Type: GrantFiled: October 5, 2006Date of Patent: March 25, 2008Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang Hee Lee, Hyun Deok Kim
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Patent number: 7327957Abstract: The present invention relates to a wavelength-tunable light source whose output wavelength can be externally controlled and a wavelength-division multiplexed transmission system using the source. A wavelength-tunable light source in accordance with the present invention is constituted to be able to vary the output wavelength of a Fabry-Perot laser diode, that is wavelength-locked to an injected light, by controlling the wavelength of the injected light. A wavelength-tunable light source in accordance with the present invention provides comparatively large output power and excellent economic features. The present invention also presents a wavelength-division multiplexed transmission system using the wavelength-tunable light source.Type: GrantFiled: March 21, 2003Date of Patent: February 5, 2008Assignee: Korea Advanced Institute of Science and TechnologyInventors: Chang Hee Lee, Hyun Deok Kim
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Patent number: 7106974Abstract: The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After injection of narrow-band incoherent light, the output of F-P LD becomes wavelength-selective rather than multi-mode and the output wavelength of F-P LD coincide with the peak wavelength of the injected incoherent light. Multi-channel WDM light sources according to the present invention can be implemented using a single broadband incoherent light source and plurality of F-P LDs. An optical transmission system for upstream signal transmission in an passive optical network using the light source according the present invention is also disclosed.Type: GrantFiled: December 11, 2000Date of Patent: September 12, 2006Assignee: Korea Advanced Institute of Science & TechnologyInventors: Chang Hee Lee, Hyun Deok Kim
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Patent number: 6999653Abstract: The present invention relates to a 4-port wavelength selective router and the add/drop multiplexer using the above router. More particularly, it relates to a 4-port wavelength selective router that can effectively routes counter-propagating signals while suppressing multiple reflections generated in the bidirectional transmission systems and networks.Type: GrantFiled: July 26, 2001Date of Patent: February 14, 2006Assignee: Korea Advanced Institute of Science & TechnologyInventors: Chang Hee Lee, Hyun Deok Kim, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee
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Patent number: 6952308Abstract: A multi-stage bidirectional optical amplifier amplifies counter-propagating signals at the same time, and includes two single-stage bidirectional optical amplifiers, two multiple reflection suppression means, and a mid-stage component.Type: GrantFiled: July 26, 2001Date of Patent: October 4, 2005Assignee: Korea Advanced Institute of Science & TechnologyInventors: Chang Hee Lee, Hyun Deok Kim, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee
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Patent number: 6894830Abstract: Disclosed is a bi-directional optical-amplifier module including first through fourth optical amplifiers, a mid-stage device for performing a desired signal processing for an upward or downward optical signal passing therethrough, a first optical-signal-path-setting device for supplying an optical signal inputted to a first input/output terminal of the bi-directional optical-amplifier module while outputting an optical signal outputted from the fourth optical amplifier to the first input/output terminal, a second optical-signal-path-setting device for supplying an optical signal inputted to a second input/output terminal of the bi-directional optical-amplifier module while outputting an optical signal outputted from the third optical amplifier to the second input/output terminal, a third optical-signal-path-setting device for outputting an optical signal outputted from the first optical amplifier to a first input/output terminal of the mid-stage device while supplying an optical signal outputted from the firsType: GrantFiled: January 22, 2002Date of Patent: May 17, 2005Assignee: Samsung Electronics Co, Ltd.Inventors: Chang-Hee Lee, Yun-Je Oh, Seong-Taek Hwang, Hyun Deok Kim, Jeong-Hun Shin, Yunhee Cho
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Patent number: 6832017Abstract: The present invention relates to a bidirectional add/drop multiplexer (BADM) and a bidirectional add/drop amplifier (BADA) module. The present invention includes an N×N arrayed waveguide grating router (AWGR), two optical circulators, two wavelength selective couplers, two optical isolators, and a mid-stage device. The mid-stage device comprises a means for compensating the chromatic dispersion of the optical fibers, a means for flattening the spectral response of the optical amplifiers, a means for suppressing the accumulation of the ASE noise or a combination of these means.Type: GrantFiled: January 24, 2001Date of Patent: December 14, 2004Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Hee Lee, Hyun Deok Kim, Jeong Hun Shin, Tae Won Oh, Yun Hee Cho