Patents by Inventor Chang-Kyun Lee
Chang-Kyun Lee 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: 11972839Abstract: A memory system includes a memory device including an interface circuit and a semiconductor memory, and a controller to generate a command for controlling the memory device. The interface circuit receives the command from the controller; determines whether the command is for the semiconductor memory or the interface circuit; and when it is determined that the command is for the interface circuit, performs a blocking operation to block transfer of the command between the interface circuit and the semiconductor memory and performs an internal operation of the interface circuit. The internal operation includes a signal controlling operation, a training operation, a read operation, an on-die termination operation, a ZQ calibration operation, or a driving force control operation.Type: GrantFiled: July 26, 2022Date of Patent: April 30, 2024Assignee: SK hynix Inc.Inventors: Chang Kyun Park, Young Sik Koh, Seung Jin Park, Dong Hyun 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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Patent number: 11915790Abstract: A memory system includes a memory device including an interface circuit and a semiconductor memory, and a controller to generate a command for controlling the memory device. The interface circuit receives the command from the controller; determines whether the command is for the semiconductor memory or the interface circuit; and when it is determined that the command is for the interface circuit, performs a blocking operation to block transfer of the command between the interface circuit and the semiconductor memory and performs an internal operation of the interface circuit. The internal operation includes a signal controlling operation, a training operation, a read operation, an on-die termination operation, a ZQ calibration operation, or a driving force control operation.Type: GrantFiled: May 26, 2022Date of Patent: February 27, 2024Assignee: SK hynix Inc.Inventors: Chang Kyun Park, Young Sik Koh, Seung Jin Park, Dong Hyun Lee
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Patent number: 10884152Abstract: Disclosed herein are grip sensing method and apparatus. The grip sensing method includes generating a sensing count by differentially amplifying a voltage potential of a grip channel based on a predetermined correction offset and performing digital conversion, comparing the sensing count with a predetermined base value to determine whether a touch condition is satisfied, performing baseline tracking for determining a baseline count based on the sensing count when the sensing count is less than the base value and the touch condition is not satisfied, stopping the baseline tracking and performing temperature compensation with respect to the baseline count using a temperature sensor mounted therein when the sensing count is equal to or greater than the base value and the touch condition is satisfied, and sensing an event based on the sensing count and the temperature-compensated baseline count.Type: GrantFiled: June 21, 2019Date of Patent: January 5, 2021Assignee: ABOV Semiconductor co., Ltd.Inventors: Dong Sik Min, Jung Hee Han, Chang Kyun Lee, Jeong Hwan Seo, Seok Hyun Jee
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Publication number: 20200363553Abstract: Disclosed herein are grip sensing method and apparatus. The grip sensing method includes generating a sensing count by differentially amplifying a voltage potential of a grip channel based on a predetermined correction offset and performing digital conversion, comparing the sensing count with a predetermined base value to determine whether a touch condition is satisfied, performing baseline tracking for determining a baseline count based on the sensing count when the sensing count is less than the base value and the touch condition is not satisfied, stopping the baseline tracking and performing temperature compensation with respect to the baseline count using a temperature sensor mounted therein when the sensing count is equal to or greater than the base value and the touch condition is satisfied, and sensing an event based on the sensing count and the temperature-compensated baseline count.Type: ApplicationFiled: June 21, 2019Publication date: November 19, 2020Applicant: ABOV Semiconductor co., Ltd.Inventors: Dong Sik MIN, Jung Hee HAN, Chang Kyun LEE, Jeong Hwan SEO, Seok Hyun JEE
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Patent number: 7430218Abstract: A traffic information service apparatus using an ad-hoc network and a method for controlling the same. The apparatus provides an ad-hoc network between vehicles and roadside devices, and collects/provides traffic information using the ad-hoc network. The method for providing a user with traffic information, comprising the steps of a) allowing vehicles to broadcast their registration messages to create an ad-hoc network, and creating the ad-hoc network between the vehicles on the basis of the registration messages, b) allowing a Road Side Equipment (RSE) to receive the registration messages broadcast from the vehicles, and collecting traffic information from the registration messages, and c) allowing the RSE to transmit the traffic information to a traffic information service center.Type: GrantFiled: March 25, 2004Date of Patent: September 30, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Kyun Lee, Eun-Tae Won, Suk-In Jung, Kyung-Hee Lee
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Publication number: 20050002347Abstract: A traffic information service apparatus using an ad-hoc network and a method for controlling the same. The apparatus provides an ad-hoc network between vehicles and roadside devices, and collects/provides traffic information using the ad-hoc network. The method for providing a user with traffic information, comprising the steps of a) allowing vehicles to broadcast their registration messages to create an ad-hoc network, and creating the ad-hoc network between the vehicles on the basis of the registration messages, b) allowing a Road Side Equipment (RSE) to receive the registration messages broadcast from the vehicles, and collecting traffic information from the registration messages, and c) allowing the RSE to transmit the traffic information to a traffic information service center.Type: ApplicationFiled: March 25, 2004Publication date: January 6, 2005Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang-Kyun Lee, Eun-Tae Won, Suk-In Jung, Kyung-Hee Lee
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Publication number: 20040215373Abstract: A system and method for communicating vehicle management information between vehicles using an ad-hoc network. The system and method forms a routing path based on vehicle management information of individual vehicles, and communicates the vehicle management information between the vehicles along the routing path. A source vehicle collects its own vehicle driving information, and creates vehicle management information of the source vehicle based on the vehicle driving information. The source vehicle sets up a routing condition composed of predetermined vehicle traveling requirements based on the vehicle management information, and transmits a vehicle management information message having the routing condition and the vehicle management information to nearby vehicles. The nearby vehicles search for the routing condition upon receiving the vehicle management information message, and determine whether to route the vehicle management information message according to the routing condition.Type: ApplicationFiled: March 10, 2004Publication date: October 28, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-Tae Won, Chang-Kyun Lee, Suk-In Jung, Kyung-Hee Lee