Patents by Inventor Young Hwan Chang
Young Hwan Chang 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: 11936409Abstract: A transmitter and a receiver are provided. The transmitter includes a processing unit configured to receive a clock signal and a data signal, set a value of a consecutive identical digit (CID) value related to the data signal and generate a modulation signal during a unit interval (UI) based on the data signal and the CID value, and a transmitter driver configured to output output signals having different voltage levels during the unit interval by receiving the modulation signal.Type: GrantFiled: March 1, 2022Date of Patent: March 19, 2024Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business FoundationInventors: Chulwoo Kim, Jonghyuck Choi, Seungwoo Park, Hyun Woo Cho, Tae-Jin Kim, Jae Suk Yu, Kil Hoon Lee, Young Hwan Chang
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Publication number: 20230366146Abstract: A hat capable of recovering the original shape and a method of manufacturing the same are provided. The hat is characterized by preparing mixtures comprising waterborne polyurethane, water, and crosslinking agent; coating synthetic fiber yarns of the hat with the mixture; curing the mixtures in a certain temperature condition in order to form a thin polyurethane film on the surface of fabric or knitted fabric for the hat. The curing reaction products by the waterborne polyurethane component implement a shape recovery of the hat after the deformation or damage due to the external force in the initial shape of the hat.Type: ApplicationFiled: May 12, 2022Publication date: November 16, 2023Inventor: Young Hwan CHANG
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Publication number: 20230026005Abstract: A transmitter and a receiver are provided. The transmitter includes a processing unit configured to receive a clock signal and a data signal, set a value of a consecutive identical digit (CID) value related to the data signal and generate a modulation signal during a unit interval (UI) based on the data signal and the CID value, and a transmitter driver configured to output output signals having different voltage levels during the unit interval by receiving the modulation signal.Type: ApplicationFiled: March 1, 2022Publication date: January 26, 2023Applicant: Korea University Research and Business FoundationInventors: Chulwoo KIM, Jonghyuck CHOI, Seungwoo PARK, Hyun Woo CHO, Tae-Jin KIM, Jae Suk YU, Kil Hoon LEE, Young Hwan CHANG
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Publication number: 20220058839Abstract: Techniques and systems for translating images of biological samples stained according to a first staining technique into images representing the biological samples stained according to a second staining technique. In various implementations, the first staining technique can include a histopathological staining technique and the second staining technique can include an immunofluorescence staining technique or an immunohistochemistry staining technique.Type: ApplicationFiled: December 30, 2019Publication date: February 24, 2022Applicant: OREGON HEALTH & SCIENCE UNIVERSITYInventors: Young Hwan Chang, Erik Burlingame, Geoffrey Schau, Joe W. Gray
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Publication number: 20190042826Abstract: Provided herein are systems and computer-implemented methods for quantitative analyses of tissue sections (including, histopathology samples, such as immunohistochemically labeled or H&E stained tissue sections), involving automatic unsupervised segmentation of image(s) of the tissue section(s), measurement of multiple features for individual nuclei within the image(s), clustering of nuclei based on extracted features, and/or analysis of the spatial arrangement and organization of features in the image based on spatial statistics. Also provided are computer-readable media containing instructions to perform operations to carry out such methods.Type: ApplicationFiled: August 3, 2018Publication date: February 7, 2019Applicant: OREGON HEALTH & SCIENCE UNIVERSITYInventors: Young Hwan Chang, Guillaume Thibault
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Patent number: 9525545Abstract: A phase locked loop includes a voltage controlled oscillator including a plurality of delay cells configured to respectively generate a plurality of clock signals having different phases and a harmonic lock detector configured to detect harmonic lock in the voltage controlled oscillator and to generate a reset signal in response. Remaining ones of the delay cells other than a first delay cell among the plurality of delay cells are reset in response to the reset signal.Type: GrantFiled: February 17, 2014Date of Patent: December 20, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Woon Taek Oh, Jin Ho Kim, Tae Jin Kim, Jae Youl Lee, Young Hwan Chang
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Publication number: 20140240371Abstract: A phase locked loop includes a voltage controlled oscillator including a plurality of delay cells configured to respectively generate a plurality of clock signals having different phases and a harmonic lock detector configured to detect harmonic lock in the voltage controlled oscillator and to generate a reset signal in response. Remaining ones of the delay cells other than a first delay cell among the plurality of delay cells are reset in response to the reset signal.Type: ApplicationFiled: February 17, 2014Publication date: August 28, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Woon Taek Oh, Jin Ho Kim, Tae Jin Kim, Jae Youl Lee, Young Hwan Chang
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Publication number: 20140240365Abstract: A semiconductor device includes: a transmitter transforming n data into first serial data and transmitting the first serial data through a first transmission line and transforming m data into second serial data and transmitting the second serial data through a second transmission line, where n and m are natural numbers at least one of which is greater than 1; a first driver integrated circuit (IC) group including n driver ICs; and a second driver IC group including m driver ICs, wherein each of the n driver ICs receives the first serial data through the first transmission line and is driven by part of the first serial data, each of the m driver ICs receives the second serial data through the second transmission line and is driven by part of the second serial data, and each of the n data and the m data includes identification information about a driver IC.Type: ApplicationFiled: March 15, 2013Publication date: August 28, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Jin-Ho KIM, Tae-jin KIM, Woon-Taek OH, Jae-Youl LEE, Young-Hwan CHANG
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Patent number: 8447429Abstract: Apparatus and a method for balancing and damping control in whole body coordination framework for a biped humanoid robot. The method comprises the steps of: (a) damping the structural vibration of the main body of the robot caused when the robot walks; (b) compensating for the trajectories of the zero moment position (ZMP) and the center of mass (COM) of the robot which changes in accordance with the damping of the structural vibration; and (c) compensating for the body orientation of the robot which changes in accordance with the damping of the structural vibration and the trajectory of the COM.Type: GrantFiled: December 21, 2007Date of Patent: May 21, 2013Assignee: Korea Institute of Science and TechnologyInventors: Young-Hwan Chang, Yong Hwan Oh, Doik Kim, Youngjin Choi, Bum-Jae You
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Patent number: 8126594Abstract: The present invention may provide a method of generating a walking pattern for a humanoid robot. The method of generating the walking pattern for the humanoid includes determining a position of a next Zero Moment Point (ZMP) along a moving direction of the humanoid robot, obtaining a first condition for generating a walking pattern based on the determined ZMP by using a periodic step module, generating trajectories of a ZMP and a Center of Mass (CoM) in an initial step based on the first condition and an initial value obtained from an initial state of the humanoid robot by using a transient step module, generating trajectories of a ZMP and a CoM in a steady step based on the ZMP of two steps by using a steady step module, and generating trajectories of a ZMP and a CoM in a final step by using the transient step module.Type: GrantFiled: October 29, 2008Date of Patent: February 28, 2012Assignee: Korea Institute of Science and TechnologyInventors: Seok Min Hong, Yong Hwan Oh, Young Hwan Chang, Do Ik Kim, Bum Jae You
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Publication number: 20110196532Abstract: Apparatus and a method for balancing and damping control in whole body coordination framework for a biped humanoid robot. The method comprises the steps of: (a) damping the structural vibration of the main body of the robot caused when the robot walks; (b) compensating for the trajectories of the zero moment position (ZMP) and the center of mass (COM) of the robot which change in accordance with the damping of the structural vibration; and (c) compensating for the body orientation of the robot which changes in accordance with the damping of the structural vibration and the trajectory of the COM.Type: ApplicationFiled: December 21, 2007Publication date: August 11, 2011Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Young-Hwan Chang, Yong Hwan Oh, Doik Kim, Youngjin Choi, Bum-Jae You
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Publication number: 20090271037Abstract: The present invention may provide a method of generating a walking pattern for a humanoid robot. The method of generating the walking pattern for the humanoid includes determining a position of a next Zero Moment Point (ZMP) along a moving direction of the humanoid robot, obtaining a first condition for generating a walking pattern based on the determined ZMP by using a periodic step module, generating trajectories of a ZMP and a Center of Mass (CoM) in an initial step based on the first condition and an initial value obtained from an initial state of the humanoid robot by using a transient step module, generating trajectories of a ZMP and a CoM in a steady step based on the ZMP of two steps by using a steady step module, and generating trajectories of a ZMP and a CoM in a final step by using the transient step module.Type: ApplicationFiled: October 29, 2008Publication date: October 29, 2009Inventors: Seok Min Hong, Yong Hwan Oh, Young Hwan Chang, Do Ik Kim, Bum Jae You
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Patent number: 7076122Abstract: A patch-type extrinsic Fabry-Perot interferometric fiber optic sensor and a real-time structural vibration monitoring method using the same are disclosed. The patch-type extrinsic Fabry-Perot interferometric fiber optic sensor is provided by combining the existing EFPI (Extrinsic Fabry-Perot Interferometer) fiber optic sensor with a direction-detecting sensor which can acquire direction information of a strain of a structure, which can solve a signal distortion problem occurring in the existing EFPI fiber optic sensor through a simple signal process. The patch-type extrinsic Fabry-Perot interferometric fiber optic sensor includes a piezoelectric material which can apply a control force to the existing EFPI fiber optic sensor, and a self-sensing bridge circuit for extracting the direction information when the piezoelectric material is used as an actuator, so that the sensible range of strain can be extended and the piezoelectric material can directly be used as the actuator based on the sensed signal.Type: GrantFiled: July 15, 2004Date of Patent: July 11, 2006Assignee: Korean Advanced Institute of Science and TechnologyInventors: In Lee, Jae Hung Han, Do Hyung Kim, Young Hwan Chang