Patents by Inventor Kyu Choi

Kyu Choi 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: 9965028
    Abstract: Provided is a method for proximity sensing in an interactive display and a method of processing a proximity sensing image. The method for proximity-sensing may include suspending, in a three-dimensional (3D) space, at least one hand of a user to manipulate at least one of a viewpoint of the user and a position of a virtual object displayed on a screen, and changing the virtual object by manipulating at least one of the position of the virtual object and the viewpoint of the user based on the suspending.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: May 8, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung In Yoo, Du Sik Park, Chang Kyu Choi
  • Patent number: 9966497
    Abstract: A method of fabricating a nonpolar gallium nitride-based semiconductor layer is provided. The method is a method of fabricating a nonpolar gallium nitride layer using metal organic chemical vapor deposition, and includes disposing a gallium nitride substrate with an m-plane growth surface within a chamber, raising a substrate temperature to a GaN growth temperature by heating the substrate, and growing a gallium nitride layer on the gallium nitride substrate by supplying a Ga source gas, an N source gas, and an ambient gas into the chamber at the growth temperature. The supplied ambient gas contains N2 and does not contain H2.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 8, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seung Kyu Choi, Chae Hon Kim, Jung Whan Jung
  • Patent number: 9966501
    Abstract: A light emitting device includes a substrate including gallium nitride, and a semiconductor layer disposed on the substrate, the semiconductor layer including an n-type nitride semiconductor layer, an active layer disposed on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer disposed on the active layer, in which an angle defined between a crystal growth plane of the substrate and an m-plane thereof is in a range of 3.5° to 6.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: May 8, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seung Kyu Choi, Hee Sub Lee, Soon Ho Ahn, Chae Hon Kim, Su Youn Hong
  • Publication number: 20180121124
    Abstract: A method and memory device of controlling a plurality of low power states are provided. The method includes: entering a low power mode state, in which memory cell rows of the memory device are refreshed and power consumption is lower than in a self-refresh mode state, in response to a low power state entry command; and exiting the low power mode state based on a low power mode exit latency time that is set in a mode register of the memory device or at least one of an alarm signal and a low power mode exit command.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 3, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yeon-kyu CHOI, Ki-seok OH, Seung-jun SHIN, Hye-ran KIM
  • Publication number: 20180121748
    Abstract: Provided is a method and apparatus to recognizing an object based on an attribute of the object and training that may calculate object age information from input data using an attribute layer trained with respect to an attribute of an object and a classification layer trained with respect to a classification of the object. The method to recognize the object includes extracting feature data from input data including an object using an object model, determining attribute classification information related to the input data from the feature data using a classification layer, determining attribute age information related to an attribute from the feature data using an attribute layer, and estimating object age information based on the attribute classification information and the attribute age information.
    Type: Application
    Filed: May 16, 2017
    Publication date: May 3, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youngjun KWAK, Byungin YOO, Youngsung KIM, Chang Kyu CHOI
  • Patent number: 9959457
    Abstract: At least one example embodiment discloses a method of converting a vector corresponding to an input image. The method includes receiving first-dimensional vector data associated with an input image, the input image including an object and converting the received first-dimensional vector data to second-dimensional vector data based on a projection matrix with an associated rank. A first dimension of the first-dimensional vector data is higher than a second dimension of the second-dimensional vector data.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: May 1, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NORTHEASTERN UNIVERSITY
    Inventors: Sungjoo Suh, Yun Fu, Zhengming Ding, Chang Kyu Choi, Jae-Joon Han
  • Patent number: 9956354
    Abstract: Disclosed is a nozzle device and a minimally invasive injection device, and the nozzle device for a minimally invasive injection device according to an exemplary embodiment includes an outlet to generate a microjet of a liquid, and an injection part of a micro-scale size connected to the outlet and adapted to be inserted into a skin tissue to a preset depth.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: May 1, 2018
    Assignee: AMOREPACIFIC CORPORATION
    Inventors: Jin Woo Park, Min Kyoung Kwon, Ji Hye Jang, Joon Ho Bae, Jin Kyu Choi
  • Publication number: 20180114110
    Abstract: A method to reduce a neural network includes: adding a reduced layer, which is reduced from a layer in the neural network, to the neural network; computing a layer loss and a result loss with respect to the reduced layer based on the layer and the reduced layer; and determining a parameter of the reduced layer based on the layer loss and the result loss.
    Type: Application
    Filed: May 2, 2017
    Publication date: April 26, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seung Ju HAN, Jung Bae KIM, Jae Joon HAN, Chang Kyu CHOI
  • Publication number: 20180114057
    Abstract: A method and apparatus for recognizing a facial expression is provided. The method of recognizing the facial expression includes extracting a feature from an input image, extracting a feature from a reference image, and recognizing a user facial expression based on a difference between the feature of the input image and the feature of the reference image.
    Type: Application
    Filed: March 23, 2017
    Publication date: April 26, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youngsung KIM, Byungin YOO, Youngjun KWAK, Chang Kyu CHOI
  • Patent number: 9954858
    Abstract: A fingerprint recognition-based control method may include acquiring sensor data with a fingerprint sensor. The sensor data may be acquired by the fingerprint sensor in response to a contact between a physical object and a sensing area of the fingerprint sensor. The method may further include receiving an input through a first input receiver from among one or more input receivers. The first input receiver may be located in a vicinity of the fingerprint sensor. The method may further include verifying the sensor data to be an input fingerprint; and sensing a motion of the physical object based on the acquired sensor data and the received input, in response to a positive result of the verifying.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunjeong Lee, Chang Kyu Choi, Sungjoo Suh
  • Patent number: 9946420
    Abstract: A touch screen panel includes a substrate including an active area, a non-active area at the periphery of the active area, and a contact area between the active area and the non-active area, sensing electrodes disposed in the active area, connecting lines disposed in the non-active area and the contact area and electrically connected to the sensing electrodes, and a metal capping layer disposed in the contact area, in which the sensing electrodes include a first overcoating layer disposed on the substrate as a conductor layer, and a second overcoating layer disposed on the first overcoating layer, the connecting lines include the first overcoating layer, the second overcoating layer, and a metal line layer disposed on the second overcoating layer, and the metal capping layer couple the metal line layer to the first overcoating layer through a contact hole to expose the first overcoating layer in the contact area.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 17, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Haeng Cho, Jae Neung Kim, Sung Kyun Park, Sang Kyu Choi, Kyung Seop Kim, Ki Hyun Cho
  • Publication number: 20180102477
    Abstract: Provided is a method for increasing a driving current of a junctionless transistor that includes: a substrate; a source region and a drain region which are formed on the substrate and are doped with the same type of dopant; a nanowire channel region which connects the source region and the drain source and is doped with the same type dopant as that of the source region and the drain region; a gate insulation layer which is formed to surround the nanowire channel region; and a gate electrode which is formed on the gate insulation layer and is formed to surround the nanowire channel region. An amount of current flowing through the nanowire channel region is increased by joule heat generated by applying a voltage to the source region and the drain region.
    Type: Application
    Filed: February 7, 2017
    Publication date: April 12, 2018
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yang-Kyu Choi, Jun-Young Park, Chang-Hoon Jeon
  • Publication number: 20180096584
    Abstract: There is provided a car-key searching system comprising: a car-key searching device configured to generate a car-key device alarm request message in a response to a car-key device alarm request from a user, and to transmit the message to a searched car-key device; and the searched car key device configured to generate a vibration or a sound upon receiving the car-key device alarm request message from the car-key searching device.
    Type: Application
    Filed: May 17, 2017
    Publication date: April 5, 2018
    Inventor: SEUNG KYU CHOI
  • Publication number: 20180097049
    Abstract: Disclosed are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes a thin film transistor (TFT) including a gate electrode and a source electrode provided on a substrate, a planarization layer provided on the TFT to have a step height, an anode electrode provided on the planarization layer and connected to the source electrode, an organic light emitting layer provided on an upper surface of the anode electrode, and a cathode electrode provided on the organic light emitting layer. The planarization layer includes a first area and a second area, provided at different heights, and a third area including an inclined surface between the first area and the second area. Also, the method includes forming a planarization layer on the source electrode to have a step height.
    Type: Application
    Filed: September 27, 2017
    Publication date: April 5, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Seung Kyu CHOI, Nam Wook CHO
  • Publication number: 20180084875
    Abstract: A piercing accessory system, comprising: a cover and a coupling portion. The coupling portion may comprise a base portion and one or more walls. The one or more walls may comprise one or more piercing receiving portions. The one or more piercing receiving portions may be configured to receive and engage at least one piercing worn by a user, such that the cover may be attachable to a user. The coupling portion and the at least one piercing may be configured to removeably couple together, such that the cover may adorn the user.
    Type: Application
    Filed: November 10, 2017
    Publication date: March 29, 2018
    Inventor: Yong Kyu Choi
  • Publication number: 20180092041
    Abstract: The present invention relates to a technology for a sensor network, machine to machine (M2M) communication, machine type communication (MTC), and the Internet of things (IoT). The present invention can be used for intelligent services (smart home, smart building, smart city, smart car or connected car, health care, digital education, retailing, security and safety related services, and the like) based on the technology. The present invention provides a method by which a node transmits a signal in a mesh network, the method comprising the steps of: transmitting a packet; receiving at least one packet transmitted from at least one peripheral node except for the node, after transmitting the packet; determining whether the at least one peripheral node has normally received the packet on the basis of the at least one packet; and retransmitting the packet if it is determined that it is necessary to retransmit the packet, on the basis of the determination result.
    Type: Application
    Filed: May 27, 2016
    Publication date: March 29, 2018
    Inventor: Dae-Kyu CHOI
  • Patent number: 9929925
    Abstract: The present disclosure relates to a sensor network, machine type communication (MTC), machine-to-machine (M2M) communication, and technology for internet of things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method for detecting a counterfeit advertiser by a server includes detecting a random delay time or a cumulative interval for a reference device based on a time stamp for an advertisement packet received from the reference device, and detecting a random delay time or a cumulative interval for a receiving device other than the reference device based on a time stamp for an advertisement packet received from the receiving device.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: March 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-Kyu Choi, Sin-Seok Seo, Ki-Seok Lee, Do-Hy Hong
  • Patent number: 9928410
    Abstract: A recognition method includes receiving an input image; and recognizing a plurality of elements associated with the input image using a single recognizer pre-trained to recognize a plurality of elements simultaneously.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungin Yoo, Namjoon Kim, Changkyo Lee, Chang Kyu Choi, Jaejoon Han
  • Patent number: 9930312
    Abstract: An apparatus for processing a depth image using a relative angle between an image sensor and a target object includes an object image extractor to extract an object image from the depth image, a relative angle calculator to calculate a relative angle between an image sensor used to photograph the depth image and a target object corresponding to the object image, and an object image rotator to rotate the object image based on the relative angle and a reference angle.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: March 27, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Joon Kim, Byung In Yoo, Sung Joo Suh, Chang Kyu Choi
  • Publication number: 20180078892
    Abstract: Wet-type carbon dioxide capturing equipment includes a CO2 absorption tower where CO2 of an exhaust gas reacts with an absorbent, a CO2 stripping tower where CO2 is separated from a rich solution absorbed the CO2 in the CO2 absorption tower, a reboiler for supplying thermal energy to the CO2 stripping tower to separate the CO2 from the rich solution in the CO2 stripping tower, a first heat exchanger for heating the rich solution by exchanging heat between a lean solution having the CO2 separated therefrom in the CO2 stripping tower and the rich solution, a mechanical vapor recompressor (MVR) for compressing a CO2 gas separated in the CO2 stripping tower, and a second heat exchanger for separating a portion of CO2 from the rich solution by heating the rich solution by exchanging heat between the CO2 gas compressed in the MVR and the rich solution passing through the first heat exchanger, in which the rich solution having CO2 that is not separated in the second heat exchanger is input to the CO2 stripping tower
    Type: Application
    Filed: June 30, 2017
    Publication date: March 22, 2018
    Applicant: KEPCO ENGINEERING & CONSTRUCTION COMPANY, INC.
    Inventors: Young Ill LEE, Tea Young LIM, Seong Pill CHO, Eun Kyu CHOI, Sung Mun YOON