Patents by Inventor Eui Su LEE
Eui Su 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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IMAGE GENERATING DEVICE SETTING VIRTUAL TRANSMITTERS AND RECEIVERS, AND METHOD OF OPERATING THE SAME
Publication number: 20240134036Abstract: Disclosed is an image generating device, which includes a measurement device including a plurality of transmitters and a plurality of receivers for a multistatic measurement of an object, an image preprocessing device that receives a raw image signal corresponding to the multistatic measurement from the measurement device and generates a preprocessed image signal based on the raw image signal, an image amplifier that generates an amplified image signal based on the preprocessed image signal, and an image restorer that generates a restored image signal corresponding to the object based on the amplified image signal, and the image amplifier is further configured to set up a first virtual transmitter and a first virtual receiver, to obtain first measurement data of a first target transmitter closest to the first virtual transmitter among the plurality of transmitters and a first target receiver closest to the first virtual receiver among the plurality of receivers.Type: ApplicationFiled: October 4, 2023Publication date: April 25, 2024Inventors: Sungwoo JO, Mugeon KIM, JUNGSOO KIM, Kyung Hyun PARK, Il Min LEE, Eui Su LEE, DA HYE CHOI -
Publication number: 20240104801Abstract: Disclosed is an image data generating method. Operations of emitting electromagnetic waves to an object and receiving scan signals scanning the object are performed by using a multi-static transceiver. First image data of a low resolution are generated based on the scan signals. when a first condition associated with the first image data is satisfied, second image data of a high resolution associated with a sub-region of the first image data are generated. When a second condition associated with the second image is satisfied, third image data based on the first image data and the second image data are generated.Type: ApplicationFiled: September 25, 2023Publication date: March 28, 2024Inventors: Sungwoo JO, Kyung Hyun PARK, Il Min LEE, Mugeon KIM, JUNGSOO KIM, Eui Su LEE, DA HYE CHOI
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Patent number: 11876143Abstract: Provided is a terahertz light source device including an antenna, a plurality of wire electrodes configured to connect the antenna to a power source, a capacitor connected to the wire electrodes between the antenna and the power source, and a plurality of resonance tunneling diodes connected to the wire electrodes between the capacitor and the antenna, and configured to generate a terahertz wave by coupling with the capacitor as a parallel resonance circuit with respect to the power source.Type: GrantFiled: October 28, 2021Date of Patent: January 16, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Kiwon Moon, Kyung Hyun Park, Dong Woo Park, Jun-Hwan Shin, Eui Su Lee, Hyun Soo Kim, Il Min Lee
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Patent number: 11846584Abstract: A measurement apparatus for measuring a coating amount of a slurry according to the present disclosure includes a light emitter configured to irradiate terahertz wave onto a release paper coated with the slurry, a light receiver configured to receive the terahertz wave, which is irradiated from the light emitter and passes through the release paper coated with the slurry, to obtain a power of the terahertz wave, and a calculating part configured to calculate a thickness of an electrode, formed from the slurry applied to the release paper, based on the power of the terahertz wave received by the light receiver.Type: GrantFiled: November 17, 2020Date of Patent: December 19, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ha Seung Seong, Ho Jin Lee, Il Min Lee, Ki Won Moon, Eui Su Lee, Dong Woo Park, Jeong Woo Park, Kyung Hyun Park, Hyun Soo Kim
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Publication number: 20230366741Abstract: Disclosed is a phase shift measuring device, which includes a dual mode laser including a first beat light source generating a first beating signal and a second beat light source generating a second beating signal, and that outputs a dual mode signal including the first beating signal and the second beating signal, a first splitter that receives the dual mode signal to generate a first branch signal and a second branch signal, the first branch signal and the second branch signal being including the branched first beating signal and the branched second beating signal, respectively, a phase control unit that receives the first branch signal and to generate a combined signal, a transmitting end that receives the combined signal from the phase control unit and generates a transmission signal based on the combined signal, and a receiving end.Type: ApplicationFiled: May 11, 2023Publication date: November 16, 2023Applicant: Electronics and Telecommunications Research InstituteInventors: Il Min LEE, DA HYE CHOI, Mugeon KIM, Kyung Hyun PARK, Dong Woo PARK, JUN-HWAN SHIN, Eui Su LEE
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Publication number: 20230280241Abstract: The inventive concept relates to an apparatus for inspecting shoes and a method for inspecting shoes, and the apparatus includes an inspection unit configured to accommodate an inspection subject, a transmission unit configured to emit electromagnetic waves toward the inspection subject accommodated in the inspection unit, a reception unit configured to receive the electromagnetic wave reflected from the inspection subject, an injection unit configured to inject a fluid toward a bottom part of the inspection subject accommodated in the inspection unit, a suction unit configured to suction a material separated from the bottom part of the inspection subject together with the fluid, and an analysis unit configured to analyze a component of the material introduced into the suction unit and the electromagnetic wave received by the reception unit.Type: ApplicationFiled: October 5, 2022Publication date: September 7, 2023Inventors: DA HYE CHOI, Kyung Hyun PARK, Il Min LEE, Mugeon KIM, Eui Su LEE
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Patent number: 11605900Abstract: An antenna structure includes a dielectric lens, an antenna substrate on the dielectric lens, and antenna electrodes on the antenna substrate. Each of the antenna electrodes may include a wire electrode and an empty plane having a triangular shape defined by the wire electrode. The antenna structure can reduce periodic reflection of a high frequency signal, suppress a periodic gain reduction phenomenon, and provide flat gain characteristics in a wide frequency band.Type: GrantFiled: November 16, 2021Date of Patent: March 14, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Dong-Young Kim, Mugeon Kim, Kyung Hyun Park, Dong Woo Park, Eui Su Lee, Il Min Lee
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Publication number: 20230065768Abstract: Disclosed is a method for fabricating a terahertz device, the method including providing a substrate, doping a conductive impurity on an upper surface of the substrate to form an electrode layer, patterning the electrode layer to form antenna electrodes, and forming a photomixer between the antenna electrodes.Type: ApplicationFiled: October 21, 2021Publication date: March 2, 2023Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong Woo PARK, Kyung Hyun PARK, Dong-Young KIM, Mugeon KIM, Jun-Hwan SHIN, Eui Su LEE, IL MIN LEE, Da Hye CHOI
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Publication number: 20220158355Abstract: Provided is an antenna structure. The structure includes a dielectric lens, an antenna substrate on the dielectric lens, and antenna electrodes on the antenna substrate. Here, each of the antenna electrodes may include a wire electrode and an empty plane having a triangular shape defined by the wire electrode.Type: ApplicationFiled: November 16, 2021Publication date: May 19, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong-Young KIM, Mugeon KIM, Kyung Hyun PARK, Dong Woo PARK, Eui Su LEE, IL MIN LEE
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Publication number: 20220140170Abstract: Provided is a terahertz light source device including an antenna, a plurality of wire electrodes configured to connect the antenna to a power source, a capacitor connected to the wire electrodes between the antenna and the power source, and a plurality of resonance tunneling diodes connected to the wire electrodes between the capacitor and the antenna, and configured to generate a terahertz wave by coupling with the capacitor as a parallel resonance circuit with respect to the power source.Type: ApplicationFiled: October 28, 2021Publication date: May 5, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kiwon MOON, Kyung Hyun PARK, Dong Woo PARK, Jun-Hwan SHIN, Eui Su LEE, Hyun Soo KIM, IL MIN LEE
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Patent number: 11269178Abstract: Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.Type: GrantFiled: October 30, 2019Date of Patent: March 8, 2022Assignee: Electronics and Telecommunications Research InstituteInventors: Eui Su Lee, Kyung Hyun Park, Il Min Lee, Kiwon Moon, Dong Woo Park, Hyun Soo Kim, Ho Jin Lee, Jeong Woo Park, Jun Hwan Shin, Kyeong Sun Choi, Dahye Choi
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Patent number: 11201250Abstract: A Schottky barrier diode includes a substrate, a first semiconductor layer formed on the substrate, a second semiconductor layer formed on the first semiconductor layer, and a metal layer formed on the second semiconductor layer to form a Schottky barrier, wherein the first semiconductor layer and the second semiconductor layer are formed of different materials, and a conduction band offset between the first semiconductor layer and the second semiconductor layer is less than a set value.Type: GrantFiled: April 14, 2020Date of Patent: December 14, 2021Assignee: Electronics and Telecommunications Research InstituteInventors: Dong Woo Park, Kyung Hyun Park, Jeong Woo Park, Jun Hwan Shin, Eui Su Lee, Hyun Soo Kim, Kiwon Moon, Il Min Lee
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Publication number: 20210281045Abstract: Disclosed is a terahertz wave generating apparatus. The terahertz wave generating apparatus includes a dual mode laser including a first single mode laser that generates a first beating signal, a gain adjustment region that modulates the first beating signal, and a second single mode laser that generates a second beating signal, and a photomixer that mixes the modulated first beating signal and the second beating signal, and that modulates a current supplied based on a beating frequency of the mixed beating signals to generate a terahertz wave signal, and the gain adjustment region is formed between the first single mode laser and the second single mode laser, and the first beating signal is output from the first single mode laser to the gain adjustment region and is modulated based on a reverse bias voltage supplied to the gain adjustment region.Type: ApplicationFiled: February 24, 2021Publication date: September 9, 2021Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Soo Kim, Kyung Hyun PARK, Eui Su LEE, IL MIN LEE, Kiwon MOON, Dong Woo PARK, Jun-Hwan SHIN
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Publication number: 20210172872Abstract: A measurement apparatus for measuring a coating amount of a slurry according to the present disclosure includes a light emitter configured to irradiate terahertz wave onto a release paper coated with the slurry, a light receiver configured to receive the terahertz wave, which is irradiated from the light emitter and passes through the release paper coated with the slurry, to obtain a power of the terahertz wave, and a calculating part configured to calculate a thickness of an electrode, formed from the slurry applied to the release paper, based on the power of the terahertz wave received by the light receiver.Type: ApplicationFiled: November 17, 2020Publication date: June 10, 2021Inventors: Ha Seung SEONG, Ho Jin LEE, Il Min LEE, Ki Won MOON, Eui Su LEE, Dong Woo PARK, Jeong Woo PARK, Kyung Hyun PARK, Hyun Soo KIM
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Publication number: 20200335639Abstract: A Schottky barrier diode includes a substrate, a first semiconductor layer formed on the substrate, a second semiconductor layer formed on the first semiconductor layer, and a metal layer formed on the second semiconductor layer to form a Schottky barrier, wherein the first semiconductor layer and the second semiconductor layer are formed of different materials, and a conduction band offset between the first semiconductor layer and the second semiconductor layer is less than a set value.Type: ApplicationFiled: April 14, 2020Publication date: October 22, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Dong Woo PARK, Kyung Hyun PARK, Jeong Woo PARK, Jun Hwan SHIN, Eui Su LEE, Hyun Soo KIM, Kiwon MOON, IL MIN LEE
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Publication number: 20200150420Abstract: Provided are a polygon mirror assembly and a scan device. A polygon mirror assembly includes: a polygon mirror including a plurality of reflection surfaces spaced apart from a rotation axis by a predetermined distance; a first motor for rotating the polygon mirror around the rotation axis; a second motor for moving the polygon mirror in a first axial direction such that the rotation axis is tilted while the first motor rotates the polygon mirror; and a clock signal extraction surface for extracting a clock signal for detecting a change in a rotational speed of the first motor.Type: ApplicationFiled: October 30, 2019Publication date: May 14, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Eui Su LEE, Kyung Hyun PARK, IL MIN LEE, Kiwon MOON, Dong Woo PARK, Hyun Soo KIM, Ho Jin LEE, Jeong Woo PARK, Jun Hwan SHIN, Kyeong Sun CHOI, Dahye CHOI
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Publication number: 20190120756Abstract: Disclosed is a terahertz, reflection imaging system using a rotating polyhedral mirror and a telecentric f-theta lens. The terahertz reflection imaging system may include a light source configured to output a terahertz, beam, a rotating polyhedral mirror of which a mirror is combined with each of polyhedral faces, and configured to reflect the terahertz beam transmitted from the light source in a direction in which a specimen is disposed, a telecentric f-theta lens configured to transmit the terahertz beam reflected from the rotating polyhedral mirror to the specimen and correct a chief ray of the terahertz beam reflected from the rotating polyhedral mirror to be parallel to an optical axis of the telecentric f-theta lens, and a detector configured to detect a terahertz beam reflected from the specimen.Type: ApplicationFiled: September 27, 2018Publication date: April 25, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Kiwon MOON, Kyung Hyun PARK, Eui Su LEE, Il Min LEE
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Patent number: 10147832Abstract: The present disclosure relates to a terahertz wave generation apparatus capable of wavefront control. A terahertz wave generating apparatus according to an exemplary embodiment comprises a photoconductive substrate; and a plurality of terahertz wave generating unit elements arranged in a two-dimensional array on the photoconductive substrate. Also, the terahertz wave generating unit elements comprise a plurality of first electrodes arranged in the two-dimensional array on the photoconductive substrate and respectively connected to a plurality of first electrode pads, and at least one second electrode formed on the photoconductive substrate so as to face the first electrodes.Type: GrantFiled: March 2, 2017Date of Patent: December 4, 2018Assignee: ELECTRONICS & TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ki Won Moon, Kyung Hyun Park, Il Min Lee, Sang-Pil Han, Eui Su Lee
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Patent number: 10082627Abstract: An apparatus providing a terahertz (THz) wave may comprise at least one THz wave generator each of which generates a THz wave; at least one first phase adjuster adjusting a phase of the generated THz wave; at least one waveguide part receiving and combining the at least one phase-adjusted THz wave radiated from the at least one first phase adjuster, and guiding the combined THz wave; at least one second phase adjuster adjusting a phase of the combined THz wave from the at least one waveguide part, which is connected to the at least one waveguide part or disposed in a portion of the at least one waveguide part; and an output module outputting the THz wave guided from the at least one waveguide part.Type: GrantFiled: November 9, 2017Date of Patent: September 25, 2018Assignee: Electronics and Telecommunications Research InstituteInventors: Kyung Hyun Park, Il Min Lee, Eui Su Lee, Ho Jin Lee, Sang Pil Han, Hyun Soo Kim, Ki Won Moon, Dong Woo Park
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Publication number: 20180136397Abstract: An apparatus providing a terahertz (THz) wave may comprise at least one THz wave generator each of which generates a THz wave; at least one first phase adjuster adjusting a phase of the generated THz wave; at least one waveguide part receiving and combining the at least one phase-adjusted THz wave radiated from the at least one first phase adjuster, and guiding the combined THz wave; at least one second phase adjuster adjusting a phase of the combined THz wave from the at least one waveguide part, which is connected to the at least one waveguide part or disposed in a portion of the at least one waveguide part; and an output module outputting the THz wave guided from the at least one waveguide part.Type: ApplicationFiled: November 9, 2017Publication date: May 17, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Kyung Hyun PARK, Il Min LEE, Eui Su LEE, Ho Jin LEE, Sang Pil HAN, Hyun Soo KIM, Ki Won MOON, Dong Woo PARK