Patents by Inventor Sung Joon Maeng

Sung Joon Maeng 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: 11441675
    Abstract: The present disclosure provides an inhibitor integrated actuator shift control device capable of controlling a position of a gear shift by improving control performance and durability through position control of a brushless direct current (BLDC) motor by an inductive sensor, forming a metallic uneven portion on an output shaft flange part of a reducer, and detecting a variation amount in induced current due to the metallic uneven portion.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 13, 2022
    Assignees: KYUNG CHANG INDUSTRIAL CO., LTD, SAM HYUN CO., LTD.
    Inventors: Dong Won Kim, Sung Joon Maeng, Dae Yeon Kim, Jin Heo, Tae Keuk Choi, Jeong Seok Kim
  • Publication number: 20220021423
    Abstract: A method of generating and applying combining weights to Physical Uplink Shared Channel (PUSCH) symbols for Open Radio Access Network (O-RAN) fronthaul interface between O-RAN radio unit (O-RU) and O-RAN distributed unit (O-DU) includes: calculating, by the O-DU, a codebook; sending, by the O-DU, the codebook to O-RU; generating, by the O-RU, an RU combiner matrix, using the codebook; applying, by the O-RU, the RU combiner matrix to In-phase and Quadrature (IQ) data to generate compressed IQ data; sending, by the O-RU, the compressed IQ data to O-DU; calculating, by the O-DU, a DU combiner matrix from compressed demodulation reference signal (DMRS); and applying, by the O-DU, the DU combiner matrix to data.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Applicant: MAVENIR NETWORKS, INC.
    Inventors: Wessam Afifi Ahmed, Sung Joon Maeng, Young-Han Nam, Sridhar Rajagopal
  • Publication number: 20210088134
    Abstract: The present disclosure provides an inhibitor integrated actuator shift control device capable of controlling a position of a gear shift by improving control performance and durability through position control of a brushless direct current (BLDC) motor by an inductive sensor, forming a metallic uneven portion on an output shaft flange part of a reducer, and detecting a variation amount in induced current due to the metallic uneven portion.
    Type: Application
    Filed: May 29, 2020
    Publication date: March 25, 2021
    Applicants: Kyung Chang Industrial Co., Ltd., SAM HYUN CO., LTD.
    Inventors: Dong Won KIM, Sung Joon MAENG, Dae Yeon KIM, Jin HEO, Tae Keuk CHOI, Jeong Seok KIM
  • Publication number: 20210054924
    Abstract: A dial transmission lever device according to an exemplary embodiment of the present invention includes a dial knob, a button guide unit, a plurality of button units, a rubber unit, and a board unit. The dial knob is rotatable from a predetermined reference position and includes a first hole that penetrates the dial knob from one end to the other end of the dial knob. The button guide unit is disposed in the dial knob. The plurality of button units is disposed in the button guide unit. The rubber unit is disposed below the button guide unit and includes protruding portions disposed below the plurality of button units, respectively. The board unit is disposed below the rubber unit. In addition, the dial knob further includes a rotary member disposed in the first hole, coupled to the dial knob, and configured to rotate together with the dial knob.
    Type: Application
    Filed: July 14, 2020
    Publication date: February 25, 2021
    Inventors: Dong Won KIM, Sung Joon Maeng, Hyeong Seok Hong