Patents by Inventor Chang-Hyun Lee

Chang-Hyun 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).

  • Patent number: 10863430
    Abstract: A method of connecting an access point (AP) device is provided. The method includes receiving media access control (MAC) address information of a terminal from the terminal through an external device, registering the received MAC address information, and determining whether the registered MAC address information corresponding to MAC address information registered to another AP device. In response to the registered MAC address information corresponding to the MAC address information registered to the other AP device, an AP device managing the registered MAC address information is determined among the AP device and the other AP device. A connection request is received from the terminal, and the terminal is connected to the AP device based on whether MAC address information of the connection request is corresponding to the registered MAC address information.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-mok Ko, Dae-hyung Kwon, Duk-gu Sung, Chang-hyun Kim, Kang-jin Yoon, Chang-Hyun Lee
  • Publication number: 20200359010
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun LEE, Tammy Lee, Jianle Chen, Dae-sung Cho, Woo-jin Han, Il-koo Kim
  • Patent number: 10824707
    Abstract: A method, performed by a device, of providing security content includes receiving a touch and drag input indicating that a user drags a visual representation of a first application displayed on a touch screen of the device to a fingerprint recognition area while the user touches the visual representation of the first application with a finger; performing authentication on a fingerprint of the finger detected on the touch screen using a fingerprint sensor included in the fingerprint recognition area; and when the performing authentication on the fingerprint is successful, displaying the security content associated with the first application on an execution window of the first application.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-wook Kang, Do-hyoung Kim, Yong-gook Park, Woo-hyoung Lee, Young-kyu Jin, Byeong-hoon Kwak, Jong-youb Ryu, Chang-hyun Lee, Yong-hyun Lim
  • Publication number: 20200317051
    Abstract: A kickdown switch for an accelerator pedal informs a driver of a misoperation state by using a kickdown switch provided in the accelerator pedal when the driver misoperates the accelerator pedal rather than operating a brake pedal while braking is required. Accordingly, the driver can definitely recognize the misoperation state of the accelerator pedal and rapidly stop misoperation of the accelerator pedal and sudden acceleration of the vehicle, whereby occurrence of accidents can be prevented.
    Type: Application
    Filed: September 5, 2019
    Publication date: October 8, 2020
    Inventors: Ja Yong Koo, Jee Hyuck Choi, Chang Hyun Lee, Eun Sik Kim, Eul Ho Son, Wi Sang Park
  • Publication number: 20200309251
    Abstract: An anti-theft device for a vehicle includes an approach prevention cover disposed in a shift lever housing to cover a shift cable connected to a shift lever so as to prevent the shift cable from being detached. Such an anti-theft vehicle makes is possible to easily and efficiently prevent theft of the vehicle by preventing a shift cable operated along with operation of a shift lever from being removed.
    Type: Application
    Filed: July 16, 2019
    Publication date: October 1, 2020
    Inventors: Jeong Seon Min, Min Gi Song, Chang Hyun Lee, Sun Il Kim
  • Publication number: 20200301894
    Abstract: Provided are an electronic device and method for managing a decentralized identifier (DID) and more specifically a device and method for managing a DID by giving authority over the DID to a user according to a priority level selected by the user.
    Type: Application
    Filed: January 30, 2020
    Publication date: September 24, 2020
    Inventors: Hwan Jo HEO, Sung Kee NOH, Chang Hyun LEE, Nam Seok KO
  • Publication number: 20200301944
    Abstract: An off-chain data storage method and apparatus for supporting the integrity and capacity scalability of a data object stored in an off-chain storage. The off-chain data storage method includes collecting a plurality of transactions for a plurality of data objects, creating a root transaction on the basis of a Merkle root of a Merkle tree created based on the collected transactions, and storing the root transaction in a blockchain storage.
    Type: Application
    Filed: March 13, 2020
    Publication date: September 24, 2020
    Inventors: Chang Hyun LEE, Sung Kee NOH, Hwan Jo HEO, Nam Seok KO
  • Patent number: 10771779
    Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: September 8, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hyun Lee, Tammy Lee, Jianle Chen, Dae-sung Cho, Woo-jin Han, Il-koo Kim
  • Publication number: 20200240515
    Abstract: A shift control apparatus configured for an electronic shift system, may include shift dial disposed on a main housing to be able to turn in a first direction or a second direction and having a permanent magnet; a main PCB disposed on the main housing opposite the permanent magnet, and recognizing gear stages and outputting signals for the recognized gear stages to a transmission control unit in accordance with a change in position of the permanent magnet when the shift dial is turned; a shift button being movable upwards and downwards with respect to the shift dial; and a sub PCB coupled to the shift dial and outputting a gear stage signal, which is generated when the shift button is operated, to the transmission control unit.
    Type: Application
    Filed: April 10, 2020
    Publication date: July 30, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Ik KIM, Chang Hyun LEE, Bum Jun KIM
  • Patent number: 10717861
    Abstract: Disclosed are: an ionomer nanoparticle dispersion solution formed by dispersing a perfluorinated ionomer having an ion conductive functional group in a solvent mixture including water and an alcohol, and carrying out a reaction under a supercritical condition; and a preparation method thereof. The ionomer nanoparticle dispersion solution has a high azeotropic mixture content in a continuous phase, which is a liquid phase, so as to readily remove a solvent therefrom, and thus a product using the ionomer nanoparticle dispersion solution can be readily fabricated and preparation costs can be reduced. In addition, uniformity of the product is improved because a perfluorinated ionomer having various ion conductive functional groups and various salts thereof is nano-dispersed, in a narrow molecular weight distribution, in the ionomer nanoparticle dispersion solution.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: July 21, 2020
    Assignee: DANKOOK UNIVERSITY CHEONAN CAMPUS INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventor: Chang Hyun Lee
  • Patent number: 10672209
    Abstract: Provided are door lock control apparatus and method having enhanced security and being capable of providing improved convenience to a user, the door lock control method including: requesting a server for security information set in a door lock; receiving first security information from the server; unlocking the door lock by using the first security information; and setting second security information different from the first security information, in the door lock.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: June 2, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kang-min Lee, Seung-eok Choi, Jae-eun Kang, Chang-han Kim, Jong-youb Ryu, Chang-hyun Lee
  • Publication number: 20200144682
    Abstract: Disclosed are a secondary battery, an active material, a method for preparing the same, and a lithium secondary battery including the same. In an embodiment, provided is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product by consuming thermal energy when exposed to a predetermined temperature or higher in a use environment of the secondary battery, thereby improving thermal safety of the secondary battery.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 7, 2020
    Applicant: L&F Co., Ltd.
    Inventors: Sung Kyun CHANG, Sang Hoon JEON, Jun Ho SHIN, Ji Woo OH, Hee Won JUNG, Hye-Rim BAE, Chang Hyun LEE, Doe Hyoung KIM
  • Publication number: 20200144680
    Abstract: Disclosed is a secondary battery including a positive electrode, a negative electrode and an electrolyte, wherein the secondary battery further includes a reaction-inducing substance located in any one of the positive electrode, the negative electrode and the electrolyte, wherein the reaction-inducing substance forms a reaction product when exposed to a predetermined temperature or higher in a use environment of the secondary battery, wherein the reaction product is a non-conductor.
    Type: Application
    Filed: October 22, 2019
    Publication date: May 7, 2020
    Applicant: L&F Co., Ltd.
    Inventors: Sung Kyun CHANG, Sang Hoon JEON, Jun Ho SHIN, Ji Woo OH, Hee Won JUNG, Hye-Rim BAE, Chang Hyun LEE, Doe Hyoung KIM
  • Patent number: 10634240
    Abstract: A shift lock structure of a shift lever, includes: an engaging lever provided at a lower end portion of the shift lever and rotated when the shift lever is rotated; a solenoid valve having a plunger extending in a direction intersecting a direction in which the engaging lever is rotated and configured to allow the plunger to be retracted or extracted depending on a shift stage; and a lock lever located in a rotation direction in which the engaging lever is rotated from a P-stage to another stage, and coupled with the plunger such that, when the shift stage is the P-stage, when the plunger is extracted and moved in an axial direction thereof, the lock lever blocks rotation of the engaging lever, implementing the shift lock.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: April 28, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Ik Kim, Chang Hyun Lee, Bum Jun Kim
  • Publication number: 20200125224
    Abstract: An example user terminal apparatus includes communication circuitry configured to be connected to a home network comprising a plurality of devices; a display configured to display a UI screen for managing the home network; a sensor configured to sense a user manipulation of the UI screen; and processing circuitry configured to change the UI screen displayed on the display according to the user manipulation. The UI screen is one of a plurality of service pages that are changeable according to a user manipulation in a first direction, the plurality of service pages being pages for respectively providing different home network management services. At least one of the plurality of service pages comprises an area that is displayable on the display according to a user manipulation in a second direction.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Inventors: Jung-hyun SHIM, Chang-won KIM, Ga-hyun JOO, Jin-sung KIM, Jong-youb RYU, Chang-hyun LEE, Yong-hyun LIM
  • Publication number: 20200122093
    Abstract: The present inventive concept relates to a method of preparing an ion-exchange membrane using a chemical modification and an ion-exchange membrane prepared thereby. More specifically, the present inventive concept relates to a method of preparing an ion-exchange membrane, which is characterized by modifying sulfonic acid groups of a perfluorinated sulfonic acid electrolyte membrane with carboxyl groups and includes chlorinating sulfonic acid groups of a perfluorinated sulfonic acid electrolyte membrane; nitrilating the chlorinated electrolyte membrane; and hydrolyzing the nitrilated electrolyte membrane, and an ion-exchange membrane chemically modified thereby.
    Type: Application
    Filed: April 19, 2018
    Publication date: April 23, 2020
    Inventors: Chang Hyun LEE, Chang Hoon OH, Jin Pyo HWANG
  • Publication number: 20200114870
    Abstract: An apparatus is provided to inhibit forcible separation of a shift cable 100 coupled to a shift lever 220 by a cover member 300 combined with a shifting device 200 which includes a shift lever housing 210 and the shift lever 220, thereby preventing forcible changing of a current gear from a P-stage to a N-stage in a vehicle. Accordingly, it is possible to help prevent theft of the vehicle.
    Type: Application
    Filed: December 14, 2018
    Publication date: April 16, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jeong Seon MIN, Chang Hyun LEE
  • Publication number: 20200118241
    Abstract: Provided is an image processing method including: generating an omnidirectional spherical image; determining information regarding a director's view that indicates some regions of the omnidirectional spherical image; generating a projection image by projecting the omnidirectional spherical image to a development view of a polyhedron; dividing, from the projection image, a director's view projection image corresponding to the director's view, based on the information regarding the director's view; reshaping the director's view projection image into a director's view rectangular image by moving a location of at least one of pixels of the director's view projection image; and generating a bitstream which the director's view rectangular image is encoded into.
    Type: Application
    Filed: April 13, 2017
    Publication date: April 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Vladyslav ZAKHARCHENKO, Kwang-pyo CHOI, Hyun-jung KIM, Chang-hyun LEE
  • Publication number: 20200057460
    Abstract: This disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT). This disclosure can be utilized in intelligent services based on the above technologies, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail sales, security and safety related services, etc. This disclosure relates to a method for generating an instruction for controlling equipment on the basis of biometric information, comprising: a step of obtaining at least one biometric information; a step of determining whether to calculate a calorific value by using stored biometric information and the obtained biometric information, and calculating the calorific value by using the stored biometric information and the obtained biometric information according to the determined result; and generating an instruction for controlling the equipment on the basis of the calculated calorific value.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 20, 2020
    Inventors: Byeong-Hoon KWAK, Chang-Hyun LEE, Jae-Ho JUNG, Yang-Wook KIM, Yong-Chan LEE
  • Publication number: 20200059677
    Abstract: Provided is a method, performed by a terminal, of providing content includes determining whether at least one content is included in preference content, based on information about the at least one content provided to the terminal and preference information of a user of the terminal about content; content, which is not included in the preference content, is present in the at least one content, transmitting, to a server, a request to change the first content to second content included in the preference content based on previously stored information about the preference content; and outputting the second content received from the server, in response to the request.
    Type: Application
    Filed: February 9, 2018
    Publication date: February 20, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Pil-kyu PARK, Kwang-pyo CHOI, Woong-il CHOI, Myung-ho KIM, Sung-chan KIM, Jeong-hoon PARK, Hee-chul YANG, Chang-hyun LEE