Patents by Inventor Dae Sung Choi

Dae Sung 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).

  • Publication number: 20240087501
    Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Dae Hee BAE, Bo Sung KIM, Jun Hun PARK, Ji Hong YUK, Sung Woo HAN, Ji Hoon CHOI
  • Patent number: 11924988
    Abstract: A display apparatus including a display and a supporter. The supporter being mounted on the display and configured to support the display and rotate the display module between a first position and a second position. The supporter including a drive motor, a first gear, and a detection sensor. The drive motor configured to supply a driving force to rotate the display. The first gear configured to rotate together with the display by receiving the driving force from the drive motor. The detection sensor configured to detect a rotation amount of a second gear configured to rotate in with the first gear.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Yong Choi, Young Chul Kim, Ji Su Kim, Hun Sung Kim, Sung Yong Park, Jin Soo Shin, Dae Sik Yoon, Yong Yeon Hwang
  • Patent number: 11841813
    Abstract: A system and method for efficient communication bus arbitration in a communication protocol are provided. The system and method for efficient communication bus arbitration are a system and method for slave communication bus arbitration in multi-drop communication, and provide efficient and fast communication speed by improving the packet structure in a manner in which a slave controller sequentially responds to a query of a master controller.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: December 12, 2023
    Assignee: ROBOTIS CO., LTD.
    Inventors: Young Jun Ko, Soo Kyung Son, Dae Sung Choi, Hee Il Kim, Byoung Soo Kim, In Yong Ha
  • Publication number: 20220261368
    Abstract: A system and method for efficient communication bus arbitration in a communication protocol are provided. The system and method for efficient communication bus arbitration are a system and method for slave communication bus arbitration in multi-drop communication, and provide efficient and fast communication speed by improving the packet structure in a manner in which a slave controller sequentially responds to a query of a master controller.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Applicant: ROBOTIS CO., LTD.
    Inventors: Young Jun KO, Soo Kyung SON, Dae Sung CHOI, Hee Il KIM, Byoung Soo KIM, In Yong HA
  • Publication number: 20220258331
    Abstract: A module and method for linking information of a plurality of driving units, and a module and method for linking driving units of a robot system in which a master controls a plurality of driving units included in a plurality of slave devices through communication are provided. The module and method for linking driving units of a robot system provide compatibility with an existing robot motion table that uses one driving unit for one device without requiring a separate conversion operation.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Applicant: ROBOTIS CO., LTD.
    Inventors: Hong Hyun KIM, Soo Kyung SON, Dae Sung CHOI, Jin Wook ON, Byoung Soo KIM, In Yong HA
  • Publication number: 20190163658
    Abstract: Disclosed is a slave device including an identification number setting operation sensor sensing a user's operation for performing an identification number setting operation on the slave device, a slave controller connected to the identification number setting operation sensor, and a storage unit connected to the slave controller and storing an identification number corresponding to a state range, wherein, when an identification number setting command packet is transmitted from a master device, the slave controller determines a state determined according to the user's identification number setting operation using a signal from the identification number setting operation sensor and determines an identification number corresponding to the state in the storage unit, as an identification number of the slave device.
    Type: Application
    Filed: November 24, 2017
    Publication date: May 30, 2019
    Applicant: ROBOTIS CO., LTD.
    Inventors: Dae Sung CHOI, Soo Kyung SON, Hee Il KIM, Byoung Soo KIM
  • Publication number: 20180219694
    Abstract: A method for searching an identifier in multi-drop communication comprises: a transmission step in which a master controller generates a command packet and transmits the command packet to a communication bus; and a response step in which a plurality of slave controllers generate state packets corresponding to a response to the command packet, respectively, and sequentially transmit the state packets through the communication bus, wherein in the response step, the plurality of slave controllers check the command packet in accordance with determined priority, and respond by the state packets in accordance with the priority.
    Type: Application
    Filed: February 1, 2017
    Publication date: August 2, 2018
    Applicant: ROBOTIS CO., LTD.
    Inventors: Byoung Soo KIM, Dae-Sung CHOI
  • Patent number: 9866554
    Abstract: A method for a Mobile Mobility Entity (MME) to carry out mutual authentication with a group of Machine Type Communication (MTC) devices includes receiving group-related authentication data from a leader, transmitting the received information and an identification number of the MME, to a HSS, receiving from the HSS a random value, an Authentication Vector and information of group members, broadcasting the random value and the first authentication token to the MTC device group based on information received from the HSS, receiving from the leader a leader authentication response that the leader generates by using a local master key value calculated by using the first secret key value, authenticating the leader by comparing the leader authentication response with a leader authentication value received from the HSS, and authenticating members within the MTC device group according to the leader authentication result.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: January 9, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Hyoung Kee Choi, Dae Sung Choi, Young Jo Kim, Ji Young Park, Dong Hyuk Shin, Joon Woo Yu
  • Patent number: 9496317
    Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: November 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
  • Publication number: 20160323275
    Abstract: The present invention discloses a method for a Mobile Mobility Entity (MME) to carry out mutual authentication with a group of Machine Type Communication (MTC) devices. The method can comprise receiving group-related authentication data from a leader; transmitting the received information and Serving Network-ID, an identification number of the MME, to a HSS; receiving from the HSS a random value, an Authentication Vector and information of group members; broadcasting the random value and the first authentication token to the MTC device group based on information received from the HSS; receiving from the leader a leader authentication response that the leader generates by using a local master key value calculated by using the first secret key value; authenticating the leader by comparing the leader authentication response with a leader authentication value received from the HSS; and authenticating members within the MTC device group according to the leader authentication result.
    Type: Application
    Filed: August 19, 2015
    Publication date: November 3, 2016
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyoung Kee CHOI, Dae Sung CHOI, Young Jo KIM, Ji Young PARK, Dong Hyuk SHIN, Joon Woo YU
  • Patent number: 9397317
    Abstract: Each pixel of the organic light-emitting display apparatus comprises a plurality of sub-pixels by using an organic light-emitting transistor (OLET). The OLET includes a plurality of gate electrodes that have different areas and are arranged adjacent to one another, a plurality of source electrodes and a plurality of drain electrodes, and an organic thin film layer disposed between or below the source electrodes and drain electrodes, the organic thin film layer including an organic light-emitting material, wherein the sub-pixels of the pixel selected by a scan signal are selectively turned-on/off by a data signal to represent a gradation.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: July 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Sung Choi, Won-Sang Park
  • Patent number: 9252384
    Abstract: An organic light emitting device includes a substrate, a first electrode disposed on the substrate, a first organic layer pattern disposed on the first electrode, an auxiliary electrode pattern alternately disposed with the first organic layer pattern, and including an upper insulation layer, a lower insulation layer, and an auxiliary electrode disposed therebetween, a light emitting layer disposed on the first organic layer pattern and the auxiliary electrode pattern, a second organic layer disposed on the light emitting layer and a second electrode disposed on the second organic layer.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: February 2, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Seo Kim, Dae-Sung Choi, Yi-Joon Ahn, Won-Sang Park
  • Patent number: 9232571
    Abstract: A flexible display device includes a flexible display panel, a plurality of supports on a first surface of the flexible display panel, the plurality of supports being spaced apart from each other, and an actuator on the first surface of the flexible display panel, the actuator being between the supports. The actuator includes an electroactive polymer layer, and a first electrode layer and a second electrode layer that are respectively arranged on an upper surface and a lower surface of the electroactive polymer layer, and the actuator having a property such that when a voltage is applied to the first electrode layer and the second electrode layer, an area of the electroactive polymer layer is changed.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi-Joon Ahn, Katsumasa Yoshii, Jong-In Baek, Dae-Sung Choi, Yong-Seok Yeo, Ki-Seo Kim
  • Publication number: 20150179710
    Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.
    Type: Application
    Filed: June 3, 2014
    Publication date: June 25, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
  • Patent number: 9054339
    Abstract: An organic light emitting transistor includes: a first electrode positioned on a substrate; a gate electrode positioned on the first electrode and including an opening formed at a center region; a first auxiliary layer positioned within the opening; an organic emission layer positioned on the first auxiliary layer and the gate electrode; a second auxiliary layer positioned on the organic emission layer; and a second electrode positioned on the second auxiliary layer.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 9, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Rang-Kyun Mok, Dae-Sung Choi, Ki-Seo Kim
  • Publication number: 20140361256
    Abstract: An organic light emitting device includes a substrate, a first electrode disposed on the substrate, a first organic layer pattern disposed on the first electrode, an auxiliary electrode pattern alternately disposed with the first organic layer pattern, and including an upper insulation layer, a lower insulation layer, and an auxiliary electrode disposed therebetween, a light emitting layer disposed on the first organic layer pattern and the auxiliary electrode pattern, a second organic layer disposed on the light emitting layer and a second electrode disposed on the second organic layer.
    Type: Application
    Filed: October 4, 2013
    Publication date: December 11, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: KI-SEO KIM, Dae-Sung Choi, Yi-Joon Ahn, Won-Sang Park
  • Publication number: 20140217369
    Abstract: An organic light-emitting transistor comprising a first electrode, a first semiconductor layer disposed on the first electrode, a second electrode disposed on the first semiconductor layer, a second semiconductor layer disposed on the second electrode, one of the first and second semiconductor layers having an organic semiconductor which emits light in response to a driving current that flows, and a third electrode disposed on the second semiconductor layer.
    Type: Application
    Filed: July 9, 2013
    Publication date: August 7, 2014
    Inventors: Dae Sung CHOI, Ki Seo KIM, Yong Seok YEO
  • Publication number: 20140124759
    Abstract: An organic light emitting transistor includes: a first electrode positioned on a substrate; a gate electrode positioned on the first electrode and including an opening formed at a center region; a first auxiliary layer positioned within the opening; an organic emission layer positioned on the first auxiliary layer and the gate electrode; a second auxiliary layer positioned on the organic emission layer; and a second electrode positioned on the second auxiliary layer.
    Type: Application
    Filed: September 30, 2013
    Publication date: May 8, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Rang-Kyun Mok, Dae-Sung Choi, Ki-Seo Kim
  • Patent number: 8697535
    Abstract: A thin film transistor substrate includes a substrate, a gate electrode on the substrate, an active layer on or below the gate electrode (the active layer at least partially overlapping the gate electrode) including a first active region and a second active region, the first active region and the second active region facing each other and extending beyond the gate electrode, a source electrode electrically connected to the first active region and a drain electrode electrically connected to the second active region, wherein the active layer includes a recess region which is at least partially recessed from a surface of the active layer facing the gate electrode, and the recess region includes a portion extending between the first active region and the second active region.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Jin Kim, Sang-Jae Yeo, Dae-Sung Choi
  • Publication number: 20140043307
    Abstract: Each pixel of the organic light-emitting display apparatus comprises a plurality of sub-pixels by using an organic light-emitting transistor (OLET). The OLET includes a plurality of gate electrodes that have different areas and are arranged adjacent to one another, a plurality of source electrodes and a plurality of drain electrodes, and an organic thin film layer disposed between or below the source electrodes and drain electrodes, the organic thin film layer including an organic light-emitting material, wherein the sub-pixels of the pixel selected by a scan signal are selectively turned-on/off by a data signal to represent a gradation.
    Type: Application
    Filed: March 6, 2013
    Publication date: February 13, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Sung Choi, Won-Sang Park