Patents by Inventor Chang-woo Seo
Chang-woo Seo 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: 20240152154Abstract: Disclosed is a method of controlling a server for managing movement schedules of a plurality of robots. The control method includes receiving an occupancy request for at least one node matching a scheduled moving route from at least one of the plurality of robots; setting actually occupied nodes and provisionally occupied nodes of each of the plurality of robots based on the occupancy request; and transmitting occupancy permission information including the set actually occupied node and provisionally occupied node to each of the plurality of robots. In the setting of the actually occupied node and the provisionally occupied node, the actually occupied nodes and the provisionally occupied nodes of each of the plurality of robots are selected so that an actually occupied node of one robot does not overlap an actually occupied node or a provisionally occupied node of another robot.Type: ApplicationFiled: December 19, 2022Publication date: May 9, 2024Applicant: Twinny Co., Ltd.Inventors: Young Jin BYEON, Sang Su LEE, Jae Yeong AN, Dong Woo SEO, Chang Hoon LEE
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Publication number: 20240139539Abstract: The present invention relates to a light irradiation apparatus including: a body part, base parts coupled to the body part, light irradiators coupled to the corresponding base part to irradiate light on a user's body, and position adjustors for adjusting the light irradiators in position and having one or more actuators controlled by a computing device, wherein the one or more actuators adjust the light irradiators in position so that the positions of the light irradiators correspond to the user's body on which the light is irradiated.Type: ApplicationFiled: October 28, 2022Publication date: May 2, 2024Inventors: Jong Won KIM, Jung Hyun KIM, Young Seok SEO, Chang Woo LEE
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Publication number: 20240121902Abstract: The present invention relates to a surface-treated copper foil, which has excellent adhesive strength with a resin substrate, shows low bending deformation after adhesion with a resin substrate, and is suitable as a high-frequency foil due to its low transmission loss, to a copper clad laminate comprising same, and to a printed wiring board.Type: ApplicationFiled: January 11, 2022Publication date: April 11, 2024Inventors: Chang Yol YANG, Jung Woo SEO, Kideok SONG, Sunhyoung LEE
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Patent number: 11949881Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.Type: GrantFiled: April 1, 2021Date of Patent: April 2, 2024Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Research Institute for Industry Cooperation, Industry-Academia Cooperation Group of Sejong UniversityInventors: Se-Yoon Jeong, Hae-Chul Choi, Jeong-Il Seo, Seung-Kwon Beack, In-Seon Jang, Jae-Gon Kim, Kyung-Ae Moon, Dae-Young Jang, Jin-Woo Hong, Jin-Woong Kim, Yung-Lyul Lee, Dong-Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Dae-Yeon Kim, Dong-Kyun Kim
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Publication number: 20230419890Abstract: A tiling display apparatus includes a plurality of display modules connected to one another to configure a screen, a set board configured to output an input data enable signal and image data synchronized therewith to one of the plurality of display modules, and first to Nth (where N is a natural number of 3 or more) timing controllers configured for the plurality of display modules, the first to Nth timing controllers are sequentially connected to one another in a first direction through a first interface line based on a cascading scheme and configured to receive the input data enable signal and the image data at different timings which are sequentially delayed and synchronize a display time of the image data on the basis of an independently generated output data enable signal.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Inventors: Tae Gung KIM, Dae Sung PARK, Chang Woo SEO
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Patent number: 11790840Abstract: A tiling display apparatus includes a plurality of display modules connected to one another to configure a screen, a set board configured to output an input data enable signal and image data synchronized therewith to one of the plurality of display modules, and first to Nth (where N is a natural number of 3 or more) timing controllers configured for the plurality of display modules, the first to Nth timing controllers are sequentially connected to one another in a first direction through a first interface line based on a cascading scheme and configured to receive the input data enable signal and the image data at different timings which are sequentially delayed and synchronize a display time of the image data on the basis of an independently generated output data enable signal.Type: GrantFiled: November 10, 2022Date of Patent: October 17, 2023Assignee: LG Display Co., Ltd.Inventors: Tae Gung Kim, Dae Sung Park, Chang Woo Seo
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Publication number: 20230284439Abstract: A semiconductor memory device includes a substrate including a trench and a contact recess, a direct contact placed inside the trench and having a width smaller than a width of the trench, a bit line structure placed on the direct contact and having a width smaller than the width of the trench, a spacer structure placed on side surfaces of the direct contact and the bit line structure, and a buried contact spaced apart from the direct contact and the bit line structure by the spacer structure and filling the contact recess. The spacer structure includes an oxide film placed between the direct contact and the buried contact inside the trench, a seed layer placed on the oxide film inside the trench between the direct contact and the buried contact, and a bulk layer filling the trench on the seed layer and including silicon nitride. The seed layer includes carbon.Type: ApplicationFiled: May 15, 2023Publication date: September 7, 2023Inventors: Chang Woo SEO, Hyun-Chul SHIM, Da In LEE, Su Youn SONG, Jeong Eun SONG, Won Seok YOO
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Publication number: 20230215345Abstract: A tiling display apparatus includes a plurality of display modules connected to one another to configure a screen, a set board configured to output an input data enable signal and image data synchronized therewith to one of the plurality of display modules, and first to Nth (where N is a natural number of 3 or more) timing controllers configured for the plurality of display modules, the first to Nth timing controllers are sequentially connected to one another in a first direction through a first interface line based on a cascading scheme and configured to receive the input data enable signal and the image data at different timings which are sequentially delayed and synchronize a display time of the image data on the basis of an independently generated output data enable signal.Type: ApplicationFiled: November 10, 2022Publication date: July 6, 2023Inventors: Tae Gung KIM, Dae Sung PARK, Chang Woo SEO
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Publication number: 20220334297Abstract: An optical film according to the present disclosure comprises: a transparent substrate; a network of conductive nanowires positioned on at least one surface of the transparent substrate; and an organic binder, wherein the organic binder includes a first organic binder and a second organic binder having different solubility parameters (Hildebrand solubility parameter, ?) from each other, a difference in the solubility parameter between the first organic binder and the second organic binder being 5 MPa0.5 or more, and the optical film has a haze of 2.0% or less and a sheet resistance of 25 ?/sq or less.Type: ApplicationFiled: September 9, 2020Publication date: October 20, 2022Inventors: Chang Woo SEO, Sang Mann LEE, Ji Ni LEE, Min Gyun GIL, Hong-seok HA, Young Sun KWON
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Publication number: 20210174986Abstract: The present invention relates to an ultra large area nanowire transparent electrode, including a transparent insulating substrate, and a metal nanowire network, wherein Rm denoting an average sheet resistance of a nanowire transparent electrode having a width of 10 cm and a length of 2 m is 55 ?/sq., or less, and each sheet resistance in 500 divided regions defined by evenly dividing the entire region of the nanowire transparent electrode having a width of 10 cm and a length of 2 m into an area of 2 cm×2 cm satisfies 0.5Rm to 1.5Rm.Type: ApplicationFiled: May 25, 2018Publication date: June 10, 2021Inventors: Sang Ho KIM, Chang Woo SEO, Jin E LEE
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Patent number: 10535792Abstract: A preparation method for a transparent conductor, according to the present invention, comprises the steps of: a) preparing a laminate which has a transparent polymer layer and a conductive network sequentially laminated on a base material; and b) sinking the conductive network into the transparent polymer layer by applying energy to the laminate.Type: GrantFiled: October 28, 2015Date of Patent: January 14, 2020Assignee: N&B CO., LTD.Inventors: Chang Woo Seo, Chang-Wan Bae
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Patent number: 10302006Abstract: An intake apparatus for an engine is provided. The intake apparatus includes an intake manifold configured to draw intake air thereinto, a cylinder head having an intake port through which intake air drawn from the intake manifold is supplied into a cylinder of the engine and a flow control valve disposed in the intake manifold and configured to control a flow direction of intake air to be drawn from the intake manifold into the cylinder head to generate a circular flow in the intake air. A port plate is configured to reinforce the circular flow of intake air that is generated in the flow control valve and a plate support is coupled with the port plate and coupled between the intake manifold and the cylinder head to enable the port plate to be inserted into the intake port.Type: GrantFiled: November 22, 2017Date of Patent: May 28, 2019Assignee: HYUNDAI KEFICO CORPORATIONInventors: Chang Woo Seo, Suk Young Kim, Young Jin Kim, Ji Sun Kim, Ba Ro Han
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Publication number: 20180142609Abstract: An intake apparatus for an engine is provided. The intake apparatus includes an intake manifold configured to draw intake air thereinto, a cylinder head having an intake port through which intake air drawn from the intake manifold is supplied into a cylinder of the engine and a flow control valve disposed in the intake manifold and configured to control a flow direction of intake air to be drawn from the intake manifold into the cylinder head to generate a circular flow in the intake air. A port plate is configured to reinforce the circular flow of intake air that is generated in the flow control valve and a plate support is coupled with the port plate and coupled between the intake manifold and the cylinder head to enable the port plate to be inserted into the intake port.Type: ApplicationFiled: November 22, 2017Publication date: May 24, 2018Inventors: Chang Woo Seo, Suk Young Kim, Young Jin Kim, Ji Sun Kim, Ba Ro Han
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Publication number: 20170345965Abstract: A preparation method for a transparent conductor, according to the present invention, comprises the steps of: a) preparing a laminate which has a transparent polymer layer and a conductive network sequentially laminated on a base material; and b) sinking the conductive network into the transparent polymer layer by applying energy to the laminate.Type: ApplicationFiled: October 28, 2015Publication date: November 30, 2017Inventors: Chang Woo SEO, Chang-Wan BAE
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Publication number: 20170034403Abstract: An imaging device configured to image a moving object includes a sensing unit configured to obtain location information of the imaging device; a processor configured to determine a moving trajectory of the moving object using the location information; an interface configured to output a first image representing the moving trajectory; and an image processor configured to generate the first image and a second image representing the moving object based on the moving trajectory.Type: ApplicationFiled: November 16, 2015Publication date: February 2, 2017Inventors: Chang-woo SEO, Jae-ho LEE, Do-han KIM
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Patent number: 9112593Abstract: An apparatus and method for compensating for a timing offset in a spread spectrum system which perform an oversampling of respective symbols to obtain a plurality of samples, estimate a chip clock timing offset and a symbol clock timing offset from the plurality of samples, and compensate for the chip clock timing offset and the symbol clock timing offset.Type: GrantFiled: February 12, 2015Date of Patent: August 18, 2015Assignee: INNOWIRELESS CO., LTD.Inventors: Jin Soup Joung, Sung Chan Choi, Yong Hoon Lim, Chang Woo Seo
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Patent number: 8259655Abstract: In a medium access method for contention and non-contention, a poll number for stations, or wireless terminals for communication, is managed by a base station so as to guarantee smooth traffic and improved Quality of Service (QoS). A first group of stations is provided for the non-contention, and a second group of stations is provided for the contention. The method includes (a) preparing a contention-free access message attempting access of the first group, (b) detecting a transmission time of a contention access message attempting access of the second group, (c) embedding the contention-free access message in the contention access message so as to transmit the embedded message to at least one of the first and second groups, and (d) receiving the contention access message, in which the contention-free access message is embedded, at the at least one of the first and second groups, and endowing any one of the first and second groups with a priority to attempt access to a medium in turn.Type: GrantFiled: November 4, 2005Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Mi-Ra Choe, Chang-Woo Seo, Rae-Jin Uh, Sung-Guk Na
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Patent number: 8131908Abstract: Disclosed is a wireless universal serial bus system that includes a device; a first host communicating with the device according to a wireless universal serial bus protocol; and a second host communicating with the device according to a wireless universal serial bus protocol, wherein when the first host receives a beacon from the second host, the first host provides new host information read out from the beacon to the device.Type: GrantFiled: March 2, 2011Date of Patent: March 6, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Woo Seo, Jun-Seo Lee
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Patent number: 8036596Abstract: An apparatus for generating a device address of a wireless local network includes an alien beacon determination unit which determines whether a received beacon is an alien beacon; a zone identity management unit which compares an alien zone identity included in the received beacon with a zone identity of a corresponding device if the received beacon is the alien beacon, and regenerates the zone identity of the corresponding device if the alien zone identity is identical to the zone identity of the corresponding device; and a device address generation unit which regenerates a device address of the corresponding device if a device address of an alien beacon group is identical to the device address of the corresponding device.Type: GrantFiled: October 17, 2007Date of Patent: October 11, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Woo Seo, Seung Hwan Oh, Dong Won Kwak
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Patent number: 7970356Abstract: A terminal location estimation method in a wireless communication system in which an access point (AP) provides an access service to a plurality of terminals includes defining a plurality of beam spaces around the AP through space multiplexing; scheduling the beam spaces according to a predetermined pattern; simultaneously forming a beam in at least one beam space; and detecting the existence and location of a terminal according to whether a response message in response to the formed beam is received. Accordingly, an AP forms beams in a predetermined scheduling pattern, and each of the terminals detecting the beams registers its location by informing the AP that each of the terminals exists in a relevant beam area, and thus, a location of each of the terminals can be estimated without using a complex DOA algorithm.Type: GrantFiled: January 12, 2007Date of Patent: June 28, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Woo Seo, Jin-Youn Cho, Dong-Jun Lee, Kyung-Hun Jang, Gang-Youl Yu