Patents by Inventor Woo-hyun Cho
Woo-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: 20240098382Abstract: An image processing device including: a decision pixel manager for setting a decision area for a defect candidate pixel, and determining a first decision pixel and a second decision pixel, based on first phase information of pixels included in the decision area with respect to a first modulation frequency of a sensing light source among the pixels; a target pixel determiner for calculating a phase difference between the first decision pixel and the second decision pixel, based on second phase information of the pixels with respect to a second modulation frequency of the sensing light source, and determining the defect candidate pixel as a target pixel, corresponding to that the phase difference exceeds a predetermined reference value; and a phase corrector for changing a phase of the target pixel, based on the phase difference.Type: ApplicationFiled: February 28, 2023Publication date: March 21, 2024Applicant: SK hynix Inc.Inventors: Woo Young JEONG, Ja Min KOO, Tae Hyun KIM, Jae Hwan JEON, Chang Hun CHO
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Publication number: 20240078322Abstract: The present disclosure relates to a memory system capable of encrypting and storing data, and a memory controller. The memory controller may include a first interface configured to perform data Communication with a first external device, a second interface configured to generate a signal for controlling an operation of a second extern& device and transmit the signal; and a processor configured to receive, from the first external device, a data write command to write data to the second external device, encrypt the data by using one of a plurality of keys stored in a key area provided in the first external device in response to the data write command, and then control the encrypted data to be written to the second external device.Type: ApplicationFiled: January 13, 2023Publication date: March 7, 2024Inventors: Seung Duk CHO, Woo Tae CHANG, Gi Jo JEONG, Jung Hyun JOH
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Patent number: 10288274Abstract: Disclosed is a LED lighting apparatus comprising: a LED module including a substrate 10 having a front surface 12 and a rear surface 13, and a plurality of LEDs 11 mounted on the front surface 12 of the substrate 10 and driven by direct input of AC voltage; a heat sink 50 for dissipating heat from the LEDs 11 on the substrate 10; a plurality of capacitors 20 to eliminate flickering of the LEDs 11; a flame barrier plate 30 being made of flame-retardant material and covering the front surface 12 of the substrate 10 so as to insulate the LED module from fire flame; and a plurality of capacitor housings 31 made of flame-retardant material, each of the capacitor housings 31 including an opening 32 formed at a front side and accommodating each capacitor 20 so as to insulate the capacitor 20 therein from fire flame; a flame barrier film 40 made of flame-retardant material and covering the opening 32 of the capacitor housing 31; and lens 60 detachably coupled to the rim of the heat sink by hook 62.Type: GrantFiled: May 5, 2017Date of Patent: May 14, 2019Assignees: ILSUNG CO., LTD.Inventor: Woo Hyun Cho
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Publication number: 20180320875Abstract: Disclosed is a LED lighting apparatus comprising: a LED module including a substrate 10 having a front surface 12 and a rear surface 13, and a plurality of LEDs 11 mounted on the front surface 12 of the substrate 10 and driven by direct input of AC voltage; a heat sink 50 for dissipating heat from the LEDs 11 on the substrate 10; a plurality of capacitors 20 to eliminate flickering of the LEDs 11; a flame barrier plate 30 being made of flame-retardant material and covering the front surface 12 of the substrate 10 so as to insulate the LED module from fire flame; and a plurality of capacitor housings 31 made of flame-retardant material, each of the capacitor housings 31 including an opening 32 formed at a front side and accommodating each capacitor 20 so as to insulate the capacitor 20 therein from fire flame; a flame barrier film 40 made of flame-retardant material and covering the opening 32 of the capacitor housing 31; and lens 60 detachably coupled to the rim of the heat sink by hook 62.Type: ApplicationFiled: May 5, 2017Publication date: November 8, 2018Applicants: ILSUNG CO., LTD.,Inventor: Woo Hyun CHO
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Patent number: 9322084Abstract: Apparatus and methods for industrial-scale production of metal matrix nanocomposites (MMNCs) are provided. The apparatus and methods can be used for the batch production of an MMNC in a volume of molten metal housed within the cavity of a production chamber. Within the volume of molten metal, a flow is created which continuously carries agglomerates of nanoparticles, which have been introduced into the molten metal, through a cavitation zone formed in a cavitation cell housed within the production chamber.Type: GrantFiled: September 16, 2014Date of Patent: April 26, 2016Assignee: Wisconsin Alumni Research FoundationInventors: Xiaochun Li, Noe Gaudencio Alba-Baena, Daniel Earl Hoefert, David Weiss, Woo-hyun Cho, Ben Peter Slater, Hongseok Choi
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Patent number: 8882308Abstract: Disclosed is a recessed LED downlighting apparatus comprising a LED downlight fixture assembly 100, a mounting frame 300 for supporting the LED downlight fixture assembly 100 on a ceiling panel 1, an electric junction box 400 mounted on the mounting frame 300, at least one electric wire 210 for electrically connecting the LED drive 170 and the junction box 400, including a first electric wire element 210A extended from the LED drive 170 and a second electric wire element 210B extended from the junction box 170, an electric connector 230 for electrically connecting the first electric wire element 210A and the second electric wire element 210B, a flexible metal conduit 220 including for sheltering the electric wire 210, a first conduit element 220A for sheltering the first electric wire element 210A and a second conduit element 220B for sheltering the second electric wire element 210B, the first conduit element 220A being secured at one end to the plate of the heat sink 120 with a clip element, and the second cType: GrantFiled: April 10, 2013Date of Patent: November 11, 2014Assignee: Ilsung Co Ltd.Inventor: Woo Hyun Cho
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Patent number: 8865057Abstract: Apparatus and methods for industrial-scale production of metal matrix nanocomposites (MMNCs) are provided. The apparatus and methods can be used for the batch production of an MMNC in a volume of molten metal housed within the cavity of a production chamber. Within the volume of molten metal, a flow is created which continuously carries agglomerates of nanoparticles, which have been introduced into the molten metal, through a cavitation zone formed in a cavitation cell housed within the production chamber.Type: GrantFiled: February 6, 2012Date of Patent: October 21, 2014Assignee: Wisconsin Alumni Research FoundationInventors: Xiaochun Li, Noe Gaudencio Alba-Baena, Daniel Earl Hoefert, David Weiss, Woo-hyun Cho, Ben Peter Slater, Hongseok Choi
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Publication number: 20140307450Abstract: Disclosed is a recessed LED downlighting apparatus comprising a LED downlight fixture assembly 100, a mounting frame 300 for supporting the LED downlight fixture assembly 100 on a ceiling panel 1, an electric junction box 400 mounted on the mounting frame 300, at least one electric wire 210 for electrically connecting the LED drive 170 and the junction box 400, including a first electric wire element 210A extended from the LED drive 170 and a second electric wire element 210B extended from the junction box 170, an electric connector 230 for electrically connecting the first electric wire element 210A and the second electric wire element 210B, a flexible metal conduit 220 including for sheltering the electric wire 210, a first conduit element 220A for sheltering the first electric wire element 210A and a second conduit element 220B for sheltering the second electric wire element 210B, the first conduit element 220A being secured at one end to the plate of the heat sink 120 with a clip element, and the second cType: ApplicationFiled: April 10, 2013Publication date: October 16, 2014Inventor: Woo Hyun CHO
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Publication number: 20130199339Abstract: Apparatus and methods for industrial-scale production of metal matrix nanocomposites (MMNCs) are provided. The apparatus and methods can be used for the batch production of an MMNC in a volume of molten metal housed within the cavity of a production chamber. Within the volume of molten metal, a flow is created which continuously carries agglomerates of nanoparticles, which have been introduced into the molten metal, through a cavitation zone formed in a cavitation cell housed within the production chamber.Type: ApplicationFiled: February 6, 2012Publication date: August 8, 2013Inventors: Xiaochun Li, Noe Gaudencio Alba-Baena, Daniel Earl Hoefert, David Weiss, Woo-hyun Cho, Ben Peter Slater, Hongseok Choi