Patents by Inventor Dae-Seok Choi

Dae-Seok 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: 11211102
    Abstract: A method of operating memory devices disposed in different ranks of a multi-rank memory device and sharing a signal line includes receiving, in all of the memory devices included in the multi-rank memory device, on-die termination (ODT) state information of the signal line. The method further includes storing, in each of the memory devices of the multi-rank memory device, the ODT state information of the signal line in a mode register. The method further includes generating, in each of the memory devices of the multi-rank memory device, a control signal based on the ODT state information of the signal line stored in the mode register. The method further includes changing, in each of the memory devices of the multi-rank memory device, an ODT setting of the signal line in response to the control signal.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 28, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-Sik Moon, Kyung-Soo Ha, Young-Soo Sohn, Ki-Seok Oh, Chang-Kyo Lee, Jin-Hoon Jang, Yeon-Kyu Choi, Seok-Hun Hyun
  • Publication number: 20210114339
    Abstract: An interior material of a vehicle includes: a fabric layer made of a tricoat fabric, a foam layer disposed on a lower surface of the fabric layer, and an antifouling layer disposed at least between an upper surface of the fabric layer or the fabric layer and the foam layer. The tricoat fabric includes a combination of at least one of a polyurethane yarn, a high-elongation polyester yarn, or a polyester yarn.
    Type: Application
    Filed: July 10, 2020
    Publication date: April 22, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, KOLONGLOTECH. Inc.
    Inventors: Jae Hyun AN, In Soo HAN, Ik Jin JUNG, Kyu Rok KIM, Seung Sik HAN, Dae Seok CHOI, Chang Jae LEE, In Sub HWANG
  • Publication number: 20210060798
    Abstract: Provided are a die pickup module and a die bonding apparatus including the same. The die pickup module includes a wafer stage for supporting a wafer including dies attached on a dicing tape, a die ejector arranged under the dicing tape and for separating a die to be picked up from the dicing tape, a non-contact picker for picking up the die in a non-contact manner so as not to contact a front surface of the die, a vertical driving unit for moving the non-contact picker in a vertical direction to pick up the die and an inverting driving unit for inverting the non-contact picker to invert a die picked up by the non-contact picker.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 4, 2021
    Inventors: Chang Bu Jeong, Jong Sung Park, Jung Sub Kim, Young Gun Park, Dae Seok Choi, Sang Hoon Jung
  • Patent number: 9828572
    Abstract: A method is provided for removing a volatile organic compound (VOC) contained in an artificial leather fabric and odor caused by the volatile organic compound by coating the artificial leather fabric with an adsorbent which reacts with a noxious substance containing the volatile organic compound (VOC); and immersing; washing; and drying the reacted artificial leather fabric. The method includes coating the adsorbent and immobilizing the volatile organic compound through a reaction, to prevent volatilization of the organic compound or reduce an amount thereof. Further, after the reaction between the artificial leather fabric and the adsorbent, the artificial leather fabric is washed, to remove the volatile organic compound immobilized on a surface of the fabric from the artificial leather.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: November 28, 2017
    Assignee: Hyundai Motor Company Kolonglotech, Inc.
    Inventors: Gun Kang, Hyun Joo Seo, Mi Jung Yun, Dae Seok Choi, Yong Tae Ha, Min Jeong Kim, Ju Ahn Kim, Ki Eop Kim, Yoon Jung Kwon, Shin Hyouk Kang
  • Publication number: 20150140311
    Abstract: A method is provided for removing a volatile organic compound (VOC) contained in an artificial leather fabric and odor caused by the volatile organic compound by coating the artificial leather fabric with an adsorbent which reacts with a noxious substance containing the volatile organic compound (VOC); and immersing; washing; and drying the reacted artificial leather fabric. The method includes coating the adsorbent and immobilizing the volatile organic compound through a reaction, to prevent volatilization of the organic compound or reduce an amount thereof. Further, after the reaction between the artificial leather fabric and the adsorbent, the artificial leather fabric is washed, to remove the volatile organic compound immobilized on a surface of the fabric from the artificial leather.
    Type: Application
    Filed: September 3, 2014
    Publication date: May 21, 2015
    Applicants: KOLONGLOTECH. INC., HYUNDAI MOTOR COMPANY
    Inventors: Gun Kang, Hyun Joo Seo, Mi Jung Yun, Dae Seok Choi, Yong Tae Ha, Min Jeong Kim, Ju Ahn Kim, Ki Eop Kim, Yoon Jung Kwon, Shin Hyouk Kang
  • Patent number: 7978625
    Abstract: An apparatus and a method for selectively retransmitting data according to a channel state in a wireless communication system are provided. The method includes determining retransmission information of a receiver from feedback information received from the receiver, determining a retransmission scheme for the receiver using the retransmission information of the receiver, and performing a retransmission process with the receiver according to the determined retransmission scheme. In a good channel state, the data is retransmitted using the retransmission scheme to thereby enhance the reliability of the data delivery and the reception performance. In a bad channel state, the data is not retransmitted to thereby reduce a waste of resources in the data retransmission.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-Jong Ju, Hee-Kwun Cho, Dae-Seok Choi
  • Publication number: 20090022063
    Abstract: An apparatus and a method for selectively retransmitting data according to a channel state in a wireless communication system are provided. The method includes determining retransmission information of a receiver from feedback information received from the receiver, determining a retransmission scheme for the receiver using the retransmission information of the receiver, and performing a retransmission process with the receiver according to the determined retransmission scheme. In a good channel state, the data is retransmitted using the retransmission scheme to thereby enhance the reliability of the data delivery and the reception performance. In a bad channel state, the data is not retransmitted to thereby reduce a waste of resources in the data retransmission.
    Type: Application
    Filed: July 14, 2008
    Publication date: January 22, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hyeong-Jong JU, Hee-Kwun CHO, Dae-Seok CHOI
  • Publication number: 20070127499
    Abstract: A voice packet communication apparatus and method in a wireless communication system are provided. The communication method includes extracting, at a base station, RTP data from an IP packet received from a corresponding terminal in voice packet communication, generating the RTP data as a MAC PDU, and sending the generated MAC PDU to a wireless terminal; and extracting, at the wireless terminal, the RTP data from the MAC PDU received from the base station and reproducing the RTP data through a voice codec. Since the amount of data to be transmitted and received in the radio section is reduced, the present invention can enhance the bandwidth efficiency.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 7, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Dae-Seok Choi, Young-Jun Park, Kug Shin