Patents by Inventor Won Chan Choi

Won Chan 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: 20240140741
    Abstract: A docking control system for a vehicle and a building and a method therefor, includes a plurality of sensors including a vehicle sensor and a gate sensor, and a controller, when a vehicle approaches a gate, which controls the plurality of sensors to set amount of movement of the vehicle, to move the gate so that a vehicle door and the gate are brought into close contact with each other, and when positional satisfaction between the vehicle door and the gate is achieved, which opens the vehicle door and the gate so that an indoor space of the vehicle and an indoor space of the building are connected each other into one space.
    Type: Application
    Filed: March 3, 2023
    Publication date: May 2, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ki Hyun CHOI, Ji Hyun SONG, Hyung Sik CHOI, Sun In YOU, Sang Heon LEE, Jin Ho HWANG, Dong Eun CHA, Won Chan LEE
  • Publication number: 20240131910
    Abstract: A vehicle body frame includes a lower frame fixed to a floor of a vehicle to define a lower region of an internal space in the vehicle, a roof frame connected to an upper portion of the lower frame to define an upper region of the internal space, configured to slid in a vertical direction of the vehicle with respect to the lower frame, to expand the internal space upwards when the roof frame slides upwards, a lower door frame forming a lower portion of a vehicle door, and an upper door frame connected to the lower door frame to form an upper portion of the vehicle door, and configured to slid together with the roof frame to expand the vehicle door upwards when the roof frame slides upwards.
    Type: Application
    Filed: April 12, 2023
    Publication date: April 25, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ki Hyun CHOI, Ji Hyun SONG, Hyung Sik CHOI, Sun In YOU, Sang Heon LEE, Jin Ho HWANG, Dong Eun CHA, Won Chan LEE
  • Publication number: 20240125168
    Abstract: A docking system between a vehicle and a building and a control method therefor include an entrance frame configured to extend in a direction towards a vehicle door, an external door provided at a side of the vehicle door to be opened, an internal door spaced from the external door and provided at a side of the building to be opened, and a sealing unit inserted into the entrance frame to be provided between the external door and the internal door, and configured to selectively extend in the direction toward the vehicle door to connect an internal space of the vehicle and an indoor space of the building into one space.
    Type: Application
    Filed: April 14, 2023
    Publication date: April 18, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ki Hyun Choi, Hyung Sik Choi, Sun In You, Sang Heon Lee, Ji Hyun Song, Won Chan Lee
  • Patent number: 8344708
    Abstract: Provided is a switching mode power supply circuit for plasma display panel, which includes an EMI filter unit, a PFC unit, an output unit, and a standby unit. The EMI filter unit may include a first line filter connected to a commercial line input power, a first capacitor and discharge resistor connected to the first line filter, a second line filter connected to the first capacitor and discharge resistor, a second capacitor connected to the second line filter, and a relay unit disposed between the first line filter and the first capacitor and discharge resistor. The standby unit may be connected to a contact point of the first line filter and the relay unit.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: January 1, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Peel Sik Jeon, Dong Kyun Ryu, Won Chan Choi, Jae Han Yoon, Ki Mok Kim, Jeong Rak Lee, Seung Heun Yang
  • Patent number: 7986099
    Abstract: The present invention relates to a switching mode power supply circuit for a plasma display panel comprising an input unit, a PFC (Power Factor Correction) unit, an output unit and a standby unit, wherein the standby unit includes a standby block for outputting a standby voltage by being connected to an AC filter stage of the input unit, a sequence block for sequentially applying power of the output unit and a control block which is connected between the standby block and the sequence block and inputs the standby voltage outputted from the standby block to the sequence block only in case that a PS_ON signal is applied.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: July 26, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Peel Sik Jeon, Dong Kyun Ryu, Won Chan Choi, Jae Han Yoon, Ki Mok Kim, Jeong Rak Lee, Seung Heun Yang
  • Publication number: 20110007051
    Abstract: Disposed is a driver for a plasma display panel, which is capable of absorbing surplus power of a plasma display panel by power conversion switching performed according to the switching of a sustain circuit to form a transmission path using resonance between the inductance of a transformer for power conversion and the capacitance of the plasma display panel, without using an energy recovery circuit. The driver includes a power supply unit including preset inductance, and converting alternating current (AC) commercial power into preset driving power by using the inductance, a driving unit switching the driving power from the power supply unit according to a logic signal and supplying the switched driving power to a plasma display panel. Surplus power of the driving unit is transmitted to the power supply unit by resonance between the inductance of the power supply unit and capacitance of the plasma display panel.
    Type: Application
    Filed: December 23, 2009
    Publication date: January 13, 2011
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Han YOON, Dong Kyun Ryu, Won Chan Choi, Peel Sik Jeon, Sung Mok Kim, Bum Sik Wang, Kwang Hun Song, Kyung Hyun Kim, Jae Gen Eom
  • Publication number: 20100097006
    Abstract: The present invention relates to a switching mode power supply circuit for a plasma display panel comprising an input unit, a PFC (Power Factor Correction) unit, an output unit and a standby unit, wherein the standby unit includes a standby block for outputting a standby voltage by being connected to an AC filter stage of the input unit, a sequence block for sequentially applying power of the output unit and a control block which is connected between the standby block and the sequence block and inputs the standby voltage outputted from the standby block to the sequence block only in case that a PS_ON signal is applied.
    Type: Application
    Filed: December 11, 2008
    Publication date: April 22, 2010
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Peel Sik JEON, Dong Kyun Ryu, Won Chan Choi, Jae Han Yoon, Ki Mok Kim, Jeong Rak Lee, Seung Heun Yang
  • Publication number: 20100097363
    Abstract: Provided is a switching mode power supply circuit for plasma display panel, which includes an EMI filter unit, a PFC unit, an output unit, and a standby unit. The EMI filter unit may include a first line filter connected to a commercial line input power, a first capacitor and discharge resistor connected to the first line filter, a second line filter connected to the first capacitor and discharge resistor, a second capacitor connected to the second line filter, and a relay unit disposed between the first line filter and the first capacitor and discharge resistor. The standby unit may be connected to a contact point of the first line filter and the relay unit.
    Type: Application
    Filed: November 20, 2008
    Publication date: April 22, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Peel Sik JEON, Dong Kyun RYU, Won Chan CHOI, Jae Han YOON, Ki Mok KIM, Jeong Rak LEE, Seung Heun YANG