Patents by Inventor Jin-hyun Cho
Jin-hyun Cho 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: 20220046423Abstract: Provided is a method for detecting abnormal traffic. The method comprises collecting non-access stratum (NAS) traffic between a user equipment (UE) and a mobility management node, identifying a ciphering algorithm supported by the UE from a network access request message transmitted from the UE to the mobility management node, and identifying the UE as a first type of terminal at risk based on a determination that the UE only supports a null ciphering algorithm.Type: ApplicationFiled: May 27, 2021Publication date: February 10, 2022Applicant: KOREA INTERNET & SECURITY AGENCYInventors: Do Won Kim, Seong Min Park, Bo Min Choi, Young Kwon Park, Jin Hyun Cho, Hyung Jin Cho, Sung Moon Kwon
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Publication number: 20210373386Abstract: A display apparatus includes a light source emitting light; a light guide plate having a first surface and a second surface, and spreading light emitted from the light source therein to emit light through the first surface; and a local dimming unit configured to pass or scatter light emitted through the second surface of the light guide plate according to a position. The local dimming unit may include: an electro-optical layer configured to which optical properties change according to an electric field; and a plurality of electrodes positioned on the same plane to generate the electric field.Type: ApplicationFiled: November 8, 2018Publication date: December 2, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun CHO, Nam Seok ROH, Sang Hyun SOHN, Jong Hee HAN
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Publication number: 20210366410Abstract: The display apparatus may comprise: a plurality of light sources for emitting light; a light guide plate, having a first surface and a second surface, for internally diffusing the light emitted from the plurality of light sources and emitting through the first surface; and a local dimming unit for reflecting or scattering, on the basis of location, the light emitted from the second surface of the light guide plate. Moreover, the local dimming unit may comprise: an electro-optic layer, the optical properties of which vary in accordance with an electric field; a plurality of electrodes located on the same plane and generating the electric field; and a control unit for varying the voltage applied to the plurality of electrodes in accordance with an image.Type: ApplicationFiled: November 8, 2018Publication date: November 25, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun CHO, Nam Seok ROH, Sang Hyun SOHN, Jong Hee HAN
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Patent number: 11125931Abstract: The present disclosure relates to a display apparatus including a display panel, a light guide panel disposed in the rear of the display panel, a light source disposed adjacent to a side surface of the light guide panel, a quantum dot conversion member disposed to be inclined with respect to the light source, including quantum dot particles, and configured to convert properties of light emitted from the light source, and a transparent member including a first surface facing the light source, a second surface facing the quantum dot conversion member, and a third surface disposed adjacent to the side surface of the light guide panel, wherein the transparent member is configured to transmit at least one part of the light incident on the third surface to the side surface of the light guide panel and reflect the other part of the light to the inside thereof.Type: GrantFiled: October 16, 2018Date of Patent: September 21, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun Cho, Go Hyun Kim, Heongseog Lee, Hyun Jun Jung, Jong Hee Han
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Patent number: 11099428Abstract: Disclosed herein is a display apparatus. The display apparatus includes a backlight unit emitting light forward, a liquid crystal panel disposed in front of the backlight unit and having a front polarizing film, and a diffusion film disposed in front of the liquid crystal panel, wherein the diffusion film includes a first refraction layer having a lens portion projecting forward, a second refraction layer disposed in front of the first refraction layer, a retardation member disposed at a front end of the lens portion, and a film polarizing layer disposed in front of the retardation member.Type: GrantFiled: August 30, 2018Date of Patent: August 24, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun Cho, Go Hyun Kim, Sang Hyun Sohn, Jong Hee Han
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Patent number: 11069899Abstract: The present invention relates to a negative electrode for a secondary battery. The negative electrode for the secondary battery according to an embodiment of the present invention comprises a negative electrode collector and a negative electrode active material integrated with at least a portion of a surface of the negative electrode collector, wherein the negative electrode collector has a plurality of delamination prevention current collection grooves with which the negative electrode active material is integrated, and the negative electrode active material is disposed on an inner surface of each of the delamination prevention current collection grooves so that a space part in which a passivation layer is formed is defined during charging and discharging.Type: GrantFiled: October 13, 2017Date of Patent: July 20, 2021Assignee: LG CHEM, LTD.Inventors: Jin Hyun Cho, Hyun Woong Yun
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Publication number: 20210200032Abstract: Disclosed herein is a display apparatus. The display apparatus includes a backlight unit emitting light forward, a liquid crystal panel disposed in front of the backlight unit and having a front polarizing film, and a diffusion film disposed in front of the liquid crystal panel, wherein the diffusion film includes a first refraction layer having a lens portion projecting forward, a second refraction layer disposed in front of the first refraction layer, a retardation member disposed at a front end of the lens portion, and a film polarizing layer disposed in front of the retardation member.Type: ApplicationFiled: August 30, 2018Publication date: July 1, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun CHO, Go Hyun KIM, Sang Hyun SOHN, Jong Hee HAN
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Publication number: 20210191026Abstract: The present disclosure relates to a display apparatus including a display panel, a light guide panel disposed in the rear of the display panel, a light source disposed adjacent to a side surface of the light guide panel, a quantum dot conversion member disposed to be inclined with respect to the light source, including quantum dot particles, and configured to convert properties of light emitted from the light source, and a transparent member including a first surface facing the light source, a second surface facing the quantum dot conversion member, and a third surface disposed adjacent to the side surface of the light guide panel, wherein the transparent member is configured to transmit at least one part of the light incident on the third surface to the side surface of the light guide panel and reflect the other part of the light to the inside thereof.Type: ApplicationFiled: October 16, 2018Publication date: June 24, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun CHO, Go Hyun KIM, Heongseog LEE, Hyun Jun JUNG, Jong Hee HAN
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Patent number: 10945117Abstract: Provided are methods of detecting a Diameter spoofing attack. According to an embodiment, the method comprises, obtaining a normal International Mobile Subscriber Identity (IMSI) from a packet of a Diameter S6a protocol transmitted from a Mobile Management Entity (MME) to a Home Subscriber Server (HSS) of a home network, adding a record comprising the normal IMSI to a session table, obtaining an Insert Subscriber Data Request (IDR) message of the Diameter S6a protocol and determining a category of the IDR message.Type: GrantFiled: March 27, 2020Date of Patent: March 9, 2021Assignee: KOREA INTERNET & SECURITY AGENCYInventors: Seong Min Park, Young Kwon Park, Bo Min Choi, Eun Hye Ko, Tae Eun Kim, Jin Hyun Cho, Do Won Kim, Hyung Jin Cho, Hwan Kuk Kim
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Patent number: 10877305Abstract: Provided is a display apparatus including a light source configured to emit light; a light guide plate configured to diffuse and emit light emitted from the light source; and a local dimming portion configured to pass or scatter light emitted from the light guide plate. The local dimming portion may include an electro-optical material and a plurality of grains having refractive index that changes based on an electric field.Type: GrantFiled: August 7, 2019Date of Patent: December 29, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun Cho, Nam Seok Roh, Won Geun Ryu, Sang Hyun Sohn, Hyo Gun Lee
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Patent number: 10686193Abstract: The present disclosure relates to a negative electrode for a lithium secondary battery comprising a mesh-type current collector and a lithium thin film, and in particular, to a negative electrode in which a lithium thin film is inserted to an opening of a current collector and empty space is formed, a lithium secondary battery comprising the same, and a manufacturing method thereof. The present disclosure is capable of enhancing safety of the lithium secondary battery by preventing lithium dendrite growth. In addition, the present disclosure is capable of preventing stripping of the negative electrode current collector and the lithium thin film while charging and discharging the battery since adhesion efficiency increases between the negative electrode and the current collector.Type: GrantFiled: July 24, 2017Date of Patent: June 16, 2020Assignee: LG CHEM, LTD.Inventors: Hyunjin Oh, Jin Hyun Cho, Hyunwoong Yun
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Publication number: 20200064664Abstract: Provided is a display apparatus including a light source configured to emit light; a light guide plate configured to diffuse and emit light emitted from the light source; and a local dimming portion configured to pass or scatter light emitted from the light guide plate. The local dimming portion may include an electro-optical material and a plurality of grains having refractive index that changes based on an electric field.Type: ApplicationFiled: August 7, 2019Publication date: February 27, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun CHO, Nam Seok ROH, Won Geun RYU, Sang Hyun SOHN, Hyo Gun LEE
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Publication number: 20200026110Abstract: Disclosed herein is an outdoor display device capable of improving image visibility. The outdoor display device includes a housing unit having an opening in a front surface thereof, a glass unit prepared or positioned in the opening of the housing unit, and a display unit prepared or positioned in the housing unit, and including a liquid crystal display panel disposed in a rear of the glass unit to display an image, and the glass unit includes a transparent member, a polarizing film on a rear of the transparent member, and a ?/4 film on at least any one of the polarizing film and the liquid crystal display panel.Type: ApplicationFiled: September 27, 2019Publication date: January 23, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Soo PYO, Jung Kyun KIM, Jin Hyun CHO
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Publication number: 20190221854Abstract: The present invention relates to a negative electrode for a secondary battery. The negative electrode for the secondary battery according to an embodiment of the present invention comprises a negative electrode collector and a negative electrode active material integrated with at least a portion of a surface of the negative electrode collector, wherein the negative electrode collector has a plurality of delamination prevention current collection grooves with which the negative electrode active material is integrated, and the negative electrode active material is disposed on an inner surface of each of the delamination prevention current collection grooves so that a space part in which a passivation layer is formed is defined during charging and discharging.Type: ApplicationFiled: October 13, 2017Publication date: July 18, 2019Applicant: LG CHEM, LTD.Inventors: Jin Hyun CHO, Hyun Woong YUN
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Publication number: 20190194533Abstract: An aspect provides a quantum dot composition including metal oxide having a structure in which quantum dots are impregnated in pores formed in the surface, a method of preparing the quantum dot composition, and a device using the quantum dot composition. The quantum dot composition according to an embodiment may include a metal oxide composite, wherein quantum dots may be impregnated in pores formed in the surface of the metal oxide composite, wherein the metal oxide composite may have a size of a Mie scattering range with respect to blue light.Type: ApplicationFiled: July 5, 2017Publication date: June 27, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun CHO, Jin Soo KIM
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Patent number: 10217921Abstract: A display apparatus is provided. The display apparatus includes a display panel, a chassis configured to support the display panel, a backlight unit configured to be installed on the chassis, and an electricity generator configured to use the backlight unit as a heat source to generate electricity. The electricity generator includes a heat transfer unit which contacts the backlight unit, at least one heat storage unit which contacts the heat transfer unit, and at least one thermoelectric device comprising a heat generator and a heat absorber contacting the heat transfer unit. The at least one thermoelectric device absorbs heat, which is generated from the backlight unit, through the heat transfer unit in response to the backlight unit being driven and absorbs heat from the at least one heat storage unit through the heat transfer unit in response to the backlight unit not being driven.Type: GrantFiled: March 24, 2016Date of Patent: February 26, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Su-hwan Jin, Hyun-taek Na, Dae-hyun Nam, Dae-yeon Yun, Jeong-il Kang, Jin-hyun Cho
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Patent number: 10191187Abstract: An outdoor display apparatus is provided. The outdoor display apparatus includes a display panel, a transparent panel disposed in front of the display panel, a light-blocking layer disposed on a front surface of the transparent panel and configured to block a portion of light transmitted to the display panel, an anti-graffiti layer disposed on a front surface of the light-blocking layer, a light-absorbing layer disposed on a rear surface of the transparent panel, and an anti-fog layer disposed on a rear surface of the light-absorbing layer.Type: GrantFiled: March 31, 2016Date of Patent: January 29, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun Cho, Jin Soo Pyo, Jung Kyun Kim
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Patent number: 10100164Abstract: A manufacturing method that forms a multilayer thin film on the inner surface of a housing forming a transparent appearance of an electronic product to provide a deep metal texture and an electronic product having a metal texture provided at the inner surface of the housing. The multilayer thin film manufacturing method includes reforming an inner surface of a housing having an outer surface and the inner surface through plasma processing, depositing at least one hardness reinforcement layer on the inner surface, and depositing a color layer on the hardness reinforcement layer.Type: GrantFiled: October 31, 2014Date of Patent: October 16, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seo Joon Lee, Jin Sub Kim, Hyong Jun Yoo, Min Chul Jung, Jin Hyun Cho
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Patent number: 10066823Abstract: Disclosed herein are a display device, a display system and method thereof. The display device includes a display panel, a light emitter configured to emit light to display an image on the display panel, a pipe positioned adjacent to the light emitter and having a conductive fluid and a gas therein, and electrodes provided in the pipe and polarized, where heat is generated to move the conductive fluid inside the pipe when the light emitter emits light, and electricity is generated while moving and passing around the electrodes.Type: GrantFiled: October 7, 2016Date of Patent: September 4, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin Hyun Cho, Joon Kang, Su Hwan Jin, Hyun Taek Na, Dae Yeon Yun, Yui Yoon Lee, Jeong II Kang, Dae Hyun Nam
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Patent number: RE47196Abstract: A liquid crystal panel assembly includes a liquid crystal panel, a backlight module having at least one light emitting diode (LED) light source to irradiate light to the liquid crystal panel, and a housing which surrounds the liquid crystal panel and the backlight module. At least a portion of the housing adjacent to the at least one LED light source is formed of a thermal-conductive material.Type: GrantFiled: October 6, 2015Date of Patent: January 8, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-hyun Cho, Joon Kang