Patents by Inventor Jae Sik Sim
Jae Sik Sim 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: 11937440Abstract: The present invention may provide an organic electroluminescent device which exhibits low driving voltage as well as high efficiency by including an electron transporting layer material having an improved electron transporting ability.Type: GrantFiled: July 5, 2018Date of Patent: March 19, 2024Assignee: SOLUS ADVANCED MATERIALS CO., LTD.Inventors: Song Ie Han, Min Sik Eum, Jae Yi Sim, Yong Hwan Lee, Woo Jae Park, Tae Hyung Kim
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Publication number: 20240074249Abstract: The present disclosure relates to a display device and a manufacturing method thereof, and a display device according to one or more embodiments includes a substrate, a transistor above the substrate, a first pixel electrode connected to the transistor, a scattering layer above the first pixel electrode, and defining repeating protrusions and depressions, a second pixel electrode above the scattering layer, and connected with the first pixel electrode, an emission layer above the second pixel electrode, and a common electrode above the emission layer.Type: ApplicationFiled: August 22, 2023Publication date: February 29, 2024Inventors: Yang-Ho JUNG, Woong Sik KIM, Kab Jong SEO, Jun Ho SIM, Jae Hun LEE
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Patent number: 11917910Abstract: The present invention relates to a novel organic compound and an organic electroluminescent device using the same, and more particularly, to a novel compound having excellent electron transport capability and light emitting capability, and an organic electroluminescent device improved in terms of luminous efficiency, driving voltage, lifespan, etc. by including the novel compound in one or more organic layers.Type: GrantFiled: May 18, 2018Date of Patent: February 27, 2024Assignee: SOLUS ADVANCED MATERIALS CO., LTD.Inventors: Yong Hwan Lee, Min Sik Eum, Jae Yi Sim, Woo Jae Park, Song Ie Han
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Publication number: 20200313022Abstract: Provided is a single photon detector. The single photo detector includes a substrate of a first conductivity type, a light absorption layer on the substrate, a grading layer and an electric field buffer layer sequentially stacked on the light absorption layer, an impurity region of a second conductivity type disposed in the electric field buffer layer and opposite the first conductivity type, a first electrode disposed on the electric field buffer layer and electrically connected to the impurity region, a reflective layer disposed between the light absorption layer and the substrate, and a second electrode disposed below the substrate and electrically connected to the substrate.Type: ApplicationFiled: December 4, 2019Publication date: October 1, 2020Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventor: Jae-Sik SIM
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Patent number: 10763969Abstract: An embodiment of the inventive concept includes an optical signal generating circuit, a controlling circuit, a waveform shaping circuit, and an output circuit. The optical signal generating circuit generates a first optical signal including pulses. The controlling circuit generates a control signal indicating a first pulse to be attenuated in magnitude among the pulses. The waveform shaping circuit attenuates a magnitude of the first pulse based on the control signal and the first optical signal, and generates a second optical signal including pulses corresponding to the pulses included in the first optical signal and the first pulse having the attenuated magnitude. The output circuit outputs an electric signal of bands corresponding to differences between frequencies of the pulses included in the second optical signal based on the second optical signal. A band corresponding to the first pulse among the bands of the electric signal is adjusted as the magnitude of the first pulse is attenuated.Type: GrantFiled: June 12, 2019Date of Patent: September 1, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Sungil Kim, Jung Min Park, Minje Song, Minhyup Song, Jae-Sik Sim, Joon Tae Ahn
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Patent number: 10658538Abstract: Provided is an optical detection device including a first ohmic contact layer of a first conductivity type, a second ohmic contact layer of a second conductivity type, and first and second mesa structures stacked between the first and second ohmic contact layers. The first mesa structure includes an electric field buffer layer; and a diffusion layer formed in the electric field buffer layer. The second mesa structure includes a light absorbing layer and a grading layer on the light absorbing layer.Type: GrantFiled: April 18, 2018Date of Patent: May 19, 2020Assignee: Electronics and Telecommunications Research InstituteInventors: Jae-Sik Sim, Kisoo Kim, Won Seok Han
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Publication number: 20190379459Abstract: An embodiment of the inventive concept includes an optical signal generating circuit, a controlling circuit, a waveform shaping circuit, and an output circuit. The optical signal generating circuit generates a first optical signal including pulses. The controlling circuit generates a control signal indicating a first pulse to be attenuated in magnitude among the pulses. The waveform shaping circuit attenuates a magnitude of the first pulse based on the control signal and the first optical signal, and generates a second optical signal including pulses corresponding to the pulses included in the first optical signal and the first pulse having the attenuated magnitude. The output circuit outputs an electric signal of bands corresponding to differences between frequencies of the pulses included in the second optical signal based on the second optical signal. A band corresponding to the first pulse among the bands of the electric signal is adjusted as the magnitude of the first pulse is attenuated.Type: ApplicationFiled: June 12, 2019Publication date: December 12, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Sungil KIM, Jung Min PARK, Minje SONG, minhyup SONG, Jae-Sik SIM, Joon Tae AHN
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Patent number: 10454523Abstract: A radio frequency signal generation device may include an optical comb generator configured to generate an optical comb signal including a plurality of first wavelength signals having different wavelengths; a pulse shaper configured to attenuate remaining wavelength signals excluding a plurality of second wavelength signals among the plurality of first wavelength signals; an optical-electronic converter configured to generate a radio frequency signal including a carrier frequency signal from the plurality of second wavelength signals outputted from the pulse shaper; and a pulse shaping controller configured to control the pulse shaper such that a carrier frequency of the carrier frequency signal varies according to a frequency hopping pattern.Type: GrantFiled: October 16, 2018Date of Patent: October 22, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sungil Kim, Jung Min Park, Minje Song, Minhyup Song, Jae-Sik Sim, Joon Tae Ahn
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Publication number: 20180309011Abstract: Provided is an optical detection device including a first ohmic contact layer of a first conductivity type, a second ohmic contact layer of a second conductivity type, and first and second mesa structures stacked between the first and second ohmic contact layers. The first mesa structure includes an electric field buffer layer; and a diffusion layer formed in the electric field buffer layer. The second mesa structure includes a light absorbing layer and a grading layer on the light absorbing layer.Type: ApplicationFiled: April 18, 2018Publication date: October 25, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Jae-Sik SIM, Kisoo KIM, Won Seok HAN
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Patent number: 9857472Abstract: Provided is a laser radar system. The laser radar system includes a first transmission and reception unit sequentially radiating a first laser beam to a plurality of locations within a first view range and receiving a reflected light; and a second transmission and reception unit sequentially radiating a second laser beam to a plurality of locations within a second view range and receiving a reflected light, wherein each of the first transmission and reception unit and the second transmission and reception unit is fixed to a loader and independently searches for the first view range and the second view range.Type: GrantFiled: July 1, 2014Date of Patent: January 2, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Bongki Mheen, Myoungsook Oh, Jae-Sik Sim, Jung-Ho Song, Hong-Seok Seo, Minhyup Song
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Patent number: 9791570Abstract: Disclosed is a laser radar apparatus. The laser radar apparatus includes: a light transmission unit configured to output a laser pulse by using a light source; a light reception unit configured to receive a reflected laser pulse in connection with the laser pulse; and a controller configured to adjust a repetition rate of the laser pulse of the light source, in which the controller adjusts the repetition rate of the laser pulse based on at least one of reception power, a target distance, a movement speed, a vertical angle, and a radiation angle.Type: GrantFiled: February 10, 2015Date of Patent: October 17, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hong Seok Seo, Bong Ki Mheen, Myoung Sook Oh, Jae Sik Sim, Jung Ho Song, Min Hyup Song
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Patent number: 9733344Abstract: Provided herein a laser radar apparatus including a plurality of light transmission and reception modules arranged concavely in an opposite direction to a scanning direction based on a surface vertical to the scanning direction, wherein each of the plurality of light transmission and reception modules comprises a transmitter configured to deflect a laser beam and to irradiate the deflected laser beam to a target; and a receiver configured to receive the laser beam reflected from the target.Type: GrantFiled: October 17, 2014Date of Patent: August 15, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jae Sik Sim, Ki Soo Kim, Bong Ki Mheen, Myoung Sook Oh, Hong Seok Seo, Jung Ho Song, Yong Hwan Kwon, Dong Sun Kim, Min Hyup Song, Gyu Dong Choi
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Patent number: 9549102Abstract: Disclosed are a method and an apparatus for implementing an active imaging system. A method of obtaining an image in an active imaging system including: dividing an imaging region, and determining a plurality of divided imaging regions; scanning each of the plurality of divided imaging regions based on a laser; collecting reflected light for each of the plurality of divided imaging regions, and generating a plurality of divided images by an image sensor; and generating a whole image for the imaging region based on the plurality of divided images.Type: GrantFiled: January 30, 2015Date of Patent: January 17, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jung Ho Song, Bong Ki Mheen, Myoung Sook Oh, Yong Hwan Kwon, Dong Sun Kim, Hong Seok Seo, Min Hyup Song, Jae Sik Sim
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Patent number: 9234964Abstract: Disclosed are a laser radar system and a method for acquiring an image of a target, and the laser radar system includes: a beam source to emit the laser beam; a beam deflector disposed between the beam source and the target, and configured to deflect the laser beam emitted from the beam source in a scanning direction of the target as time elapses; and an optical detector configured to detect the laser beam reflected from the target, which is provided a plurality of beam spots having a diameter DRBS; and a receiving optical system disposed between the target and the optical detector and configured to converge the laser beam reflected from the target, and the optical detector includes a detecting area having a diameter DDA that satisfies an equation of ?{square root over (2)}×PRBS+2×DRBS?DDA?2×Dlens and an equation of (4/?)×?×F_number<DRBS<Dlens.Type: GrantFiled: June 12, 2013Date of Patent: January 12, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Bongki Mheen, MyoungSook Oh, Kisoo Kim, Jae-Sik Sim, Yong-Hwan Kwon, Eun Soo Nam
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Publication number: 20150381962Abstract: Disclosed are a method and an apparatus for implementing an active imaging system. A method of obtaining an image in an active imaging system including: dividing an imaging region, and determining a plurality of divided imaging regions; scanning each of the plurality of divided imaging regions based on a laser; collecting reflected light for each of the plurality of divided imaging regions, and generating a plurality of divided images by an image sensor; and generating a whole image for the imaging region based on the plurality of divided images.Type: ApplicationFiled: January 30, 2015Publication date: December 31, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jung Ho SONG, Bong Ki MHEEN, Myoung Sook OH, Yong Hwan KWON, Dong Sun KIM, Hong Seok SEO, Min Hyup SONG, Jae Sik SIM
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Publication number: 20150381845Abstract: Disclosed is an apparatus for obtaining an image. The apparatus for obtaining an image includes a light source, a scanner, a first beam splitter, and a light receiving unit. The light source generates a laser pulse. The scanner irradiates the laser pulse in a first direction. The first beam splitter splits the laser pulse irradiated in the first direction in the first direction and a second direction and irradiates the split laser pulse. The light receiving unit detects reflected light. Accordingly, it is possible to irradiate light to a wide range by a light source having a relatively small divergent angle.Type: ApplicationFiled: February 12, 2015Publication date: December 31, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jung Ho SONG, Myoung Sook OH, Ki Soo KIM, Bong Ki MHEEN, Jae Sik SIM, Yong Hwan KWON, Min Hyup SONG, Gyu Dong CHOI
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Publication number: 20150372447Abstract: Provided herein is a pulse laser generator including a modulator configured to receive a continuous wave laser, and to modulate an intensity and phase of the continuous wave laser to generate a first pulse laser; and a chirping unit configured to chirp the first pulse laser to generate a second pulse laser.Type: ApplicationFiled: June 5, 2015Publication date: December 24, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Min Hyup SONG, Bong Ki MHEEN, Hong Seok SEO, Yong Hwan KWON, Ki Soo KIM, Dong Sun KIM, Jung Ho SONG, Jae Sik SIM, Gyu Dong CHOI
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Patent number: 9170333Abstract: Disclosed is a system of a dynamic range three-dimensional image, including: an optical detector including a gain control terminal capable of controlling an optical amplification gain; a pixel detecting module for detecting a pixel signal for configuring an image by receiving an output of the optical detector; a high dynamic range (HDR) generating module for acquiring a dynamic range image by generating a signal indicating a saturation degree of the pixel signal and combining the pixel signal based on the pixel signal detected by the pixel detecting module; and a gain control signal generating module generating an output signal for supplying required voltage to the gain control terminal of the optical detector based on the magnitude of the signal indicating the saturation degree of the pixel signal.Type: GrantFiled: December 22, 2011Date of Patent: October 27, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Bongki Mheen, Ki-Jun Sung, Jae-Sik Sim, Kisoo Kim, MyoungSook Oh, Yong-Hwan Kwon, Eun Soo Nam
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Publication number: 20150226853Abstract: Disclosed is a laser radar apparatus. The laser radar apparatus includes: a light transmission unit configured to output a laser pulse by using a light source; a light reception unit configured to receive a reflected laser pulse in connection with the laser pulse; and a controller configured to adjust a repetition rate of the laser pulse of the light source, in which the controller adjusts the repetition rate of the laser pulse based on at least one of reception power, a target distance, a movement speed, a vertical angle, and a radiation angle.Type: ApplicationFiled: February 10, 2015Publication date: August 13, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hong Seok SEO, Bong Ki MHEEN, Myoung Sook OH, Jae Sik SIM, Jung Ho SONG, Min Hyup SONG
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Publication number: 20150146190Abstract: Provided herein a laser radar apparatus including a plurality of light transmission and reception modules arranged concavely in an opposite direction to a scanning direction based on a surface vertical to the scanning direction, wherein each of the plurality of light transmission and reception modules comprises a transmitter configured to deflect a laser beam and to irradiate the deflected laser beam to a target; and a receiver configured to receive the laser beam reflected from the target.Type: ApplicationFiled: October 17, 2014Publication date: May 28, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Jae Sik SIM, Ki Soo KIM, Bong Ki MHEEN, Myoung Sook OH, Hong Seok SEO, Jung Ho SONG, Yong Hwan KWON, Dong Sun KIM, Min Hyup SONG, Gyu Dong CHOI