Patents by Inventor Chul Soon Park

Chul Soon Park 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: 20210247469
    Abstract: An apparatus for operating an optical-reflector according to an embodiment of the present disclosure includes a first carrier configured to rotate based on a first direction perpendicular to an optical axis, a second carrier having an optical-reflector for reflecting a light toward a lens and accommodated in the first carrier to rotate based on a second direction perpendicular to both the optical axis and the first direction with respect to the first carrier, a plurality of magnets provided to the second carrier at different positions, a plurality of hall sensors configured to output signals respectively corresponding to the positions of the plurality of magnets, and a position control unit configured to calculate the signals input from the plurality of hall sensors to generate a position signal that is a signal about a current position of the second carrier.
    Type: Application
    Filed: April 28, 2021
    Publication date: August 12, 2021
    Inventors: Chul Soon PARK, Jung Min SON, Sang hwa LEE
  • Publication number: 20210181147
    Abstract: The present invention relates to a graphene transistor comprising: a substrate; a graphene channel layer arranged on the substrate; a pair of metals spaced from each other and respectively arranged at opposite ends of the graphene channel layer; and a linker layer arranged on the graphene channel layer and including an N-heterocyclic carbene compound, a fabrication method therefor, and a biosensor comprising the same. The graphene transistor according to the present invention in which the carbene group of the N-heterocyclic carbene compound forms a covalent bond with the graphene channel layer to modify the whole surface of the graphene channel layer exhibits excellent electric conductivity as a transistor and a biosensor comprising the transistor is improved in selectivity and sensitivity.
    Type: Application
    Filed: October 29, 2018
    Publication date: June 17, 2021
    Inventors: Oh Seok KWON, Chang Soo LEE, Seon Joo PARK, Tai Hwan HA, Chul Soon PARK, Kyung Ho KIM, Jin Yeong KIM
  • Patent number: 10942364
    Abstract: An apparatus for driving an optical system with a memory unit includes a main frame having an optical system; a base frame configured to accommodate the main frame; a driving unit configured to move the main frame in a first direction perpendicular to an optical axis with respect to the base frame; and a memory unit configured to store first reference position information that is information about a position at which the optical system is aligned in the first direction.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: March 9, 2021
    Assignee: JAHWA electronics Co., Ltd.
    Inventors: Chul Soon Park, Je Seung Yeon, Kyoung Yong Lee, Sang Hwa Lee
  • Patent number: 10921552
    Abstract: An autofocus apparatus according to an embodiment of the present invention includes a reflector provided to a rear side of a lens assembly and configured to change a path of a light passing through the lens assembly so that the light is oriented toward an image sensor; a carrier to which the reflector is mounted, the carrier being configured to linearly move in an optical axis direction; a housing configured to accommodate the carrier; and a driving unit configured to move the carrier so that a distance between the reflector and the lens assembly and a distance between the reflector and the image sensor are changed simultaneously.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: February 16, 2021
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Chul Soon Park, Byung cheol Lee, Kyoung Yong Lee, Je Seung Yeon, In su Kang
  • Publication number: 20200352047
    Abstract: The display apparatus includes a display assembly. The display apparatus further includes a mounting device on which the display assembly is mounted and a rotating shaft forming the center of rotation of the display assembly. The rotating shaft is at a fixed location for the mounting device and the display assembly, respectively. The display assembly is switched between a first mode and a second mode rotated from the first mode about a rotating shaft and is changed in the height of the center of the display assembly.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Su CHOI, Chul Soon PARK, Woo Sung IN, Hyun Jun JUNG, Jong Hee HAN
  • Patent number: 10820434
    Abstract: The display apparatus includes a display assembly. The display apparatus further includes a mounting device on which the display assembly is mounted and a rotating shaft forming the center of rotation of the display assembly. The rotating shaft is at a fixed location for the mounting device and the display assembly, respectively. The display assembly is switched between a first mode and a second mode rotated from the first mode about a rotating shaft and is changed in the height of the center of the display assembly.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Su Choi, Chul Soon Park, Woo Sung In, Hyun Jun Jung, Jong Hee Han
  • Publication number: 20200158793
    Abstract: An apparatus for operating an optical-reflector includes a first carrier configured to rotate based on a first direction perpendicular to an optical axis, a second carrier having an optical-reflector for reflecting a light toward a lens and accommodated in the first carrier to rotate based on a second direction perpendicular to both the optical axis and the first direction with respect to the first carrier, a plurality of magnets provided to the second carrier at different positions, a plurality of hall sensors configured to output signals respectively corresponding to the positions of the plurality of magnets, and a position control unit configured to calculate the signals input from the plurality of hall sensors to generate a position signal that is a signal about a current position of the second carrier.
    Type: Application
    Filed: March 19, 2019
    Publication date: May 21, 2020
    Inventors: Chul Soon PARK, Jung Min SON, Sang hwa LEE
  • Patent number: 10571093
    Abstract: An apparatus for supporting an optical reflector to change a path of light and introduce the light to a lens includes an inclined unit configured to support a reflective surface of the optical reflector; a guide wall formed at a side of the inclined unit to support a side surface of the optical reflector; a guide opening formed in the guide wall; and a support member made of a material different from the material of the optical reflector and inserted into the guide opening so that an inner surface of the support member is fixedly coupled to the side surface of the optical reflector.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: February 25, 2020
    Assignee: JAHWA electronics Co., Ltd.
    Inventors: Chul Soon Park, Jung Min Son, Min Gyu Suh
  • Patent number: 10564442
    Abstract: An apparatus for driving an optical-reflector for optical image stabilization (OIS) with a multi-axial structure includes a support frame having a first groove rail formed therein, an optical-reflector disposed on the support frame to reflect light to a lens, a middle frame having a first guide rail corresponding to the first groove rail and a second groove rail formed therein, a base frame having a second guide rail formed corresponding to the second groove rail, a first ball disposed between the first groove rail and the first guide rail, a second ball disposed between the second groove rail and the second guide rail, a first driving unit configured to move the support frame in a first direction on the basis of the middle frame, and a second driving unit configured to move the middle frame in a second direction, different from the first direction, on the basis of the base frame.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: February 18, 2020
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Jin Soo Seol, Kyoung Yong Lee, Chul Soon Park
  • Publication number: 20190243156
    Abstract: An apparatus for driving an optical system with a memory unit includes a main frame having an optical system; a base frame configured to accommodate the main frame; a driving unit configured to move the main frame in a first direction perpendicular to an optical axis with respect to the base frame; and a memory unit configured to store first reference position information that is information about a position at which the optical system is aligned in the first direction.
    Type: Application
    Filed: June 12, 2018
    Publication date: August 8, 2019
    Applicant: JAHWA electronics Co., Ltd.
    Inventors: Chul Soon PARK, Je Seung YEON, Kyoung Yong LEE, Sang Hwa LEE
  • Patent number: 10355643
    Abstract: A differential Colpitts voltage-controlled oscillator according to example embodiments includes a feedback circuit constituting a Colpitts oscillator structure, a negative resistance circuit including a first negative resistance transistor and a second negative resistance transistor cross-coupled to each other and connected to the feedback circuit, a resonance circuit including a first inductor and a variable capacitor connected to both ends of the first inductor to generate differential output signals base on outputs of the feedback circuit, and a phase noise reduction circuit coupled to the feedback circuit to remove phase noise.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: July 16, 2019
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chul-Soon Park, Dong-Min Kang
  • Patent number: 10267737
    Abstract: A near-infrared fluorescent probe for detecting ALP is represented by Chemical 1. The fluorescent probe capable of detecting ALP can selectively detect ALP only quickly and accurately. In addition, the fluorescent probe allows monitoring of a biological phenomenon occurring in cells and tissues through noninvasive in-vivo imaging and during the early osteogenic differentiation in real time.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 23, 2019
    Assignee: KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Chang-Soo Lee, Chul Soon Park, Oh Seok Kwon, Tai Hwan Ha
  • Patent number: 10261337
    Abstract: An apparatus for driving an optical-reflector includes a support frame having a groove line formed therein, an optical-reflector installed at the support frame to change a path of light input through an opening so that the light is put into a lens, a base frame having a guiding groove formed with a shape corresponding to the groove line, and a plurality of balls disposed between the groove line and the guiding groove so that the support frame and the base frame are kept in a spaced state, and a driving unit configured to move the support frame along a path corresponding to the groove line or the guiding groove.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 16, 2019
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Je Seung Yeon, Byung Cheol Lee, Byung Kill Kang, Chul Soon Park
  • Patent number: 10224644
    Abstract: A series-fed E-shaped patch antenna array has co-polarized parasitic patches to improve aperture efficiency. Each of microstrip parasitic patches is inserted between a plurality of microstrip E-shaped patch antennas. The parasitic patches are co-polarized with the E-shaped patch antennas so that the current flows in the parasitic patches and the E-shaped patch antennas have the same polarity. Additional radiation from the co-polarized microstrip parasitic patches significantly improves gain flatness, gain and aperture efficiency due to offset resonance frequency.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: March 5, 2019
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Chul-Soon Park, Tae-Hwan Jang, Hong-Yi Kim
  • Publication number: 20190067834
    Abstract: A series-fed E-shaped patch antenna array has co-polarized parasitic patches to improve aperture efficiency. Each of microstrip parasitic patches is inserted between a plurality of microstrip E-shaped patch antennas. The parasitic patches are co-polarized with the E-shaped patch antennas so that the current flows in the parasitic patches and the E-shaped patch antennas have the same polarity. Additional radiation from the co-polarized microstrip parasitic patches significantly improves gain flatness, gain and aperture efficiency due to offset resonance frequency.
    Type: Application
    Filed: November 7, 2017
    Publication date: February 28, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chul-Soon Park, Tae-Hwan Jang, Hong-Yi Kim
  • Publication number: 20190069422
    Abstract: The display apparatus includes a display assembly. The display apparatus further includes a mounting device on which the display assembly is mounted and a rotating shaft forming the center of rotation of the display assembly. The rotating shaft is at a fixed location for the mounting device and the display assembly, respectively. The display assembly is switched between a first mode and a second mode rotated from the first mode about a rotating shaft and is changed in the height of the center of the display assembly.
    Type: Application
    Filed: August 31, 2018
    Publication date: February 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Su CHOI, Chul Soon PARK, Woo Sung IN, Hyun Jun JUNG, Jong Hee HAN
  • Publication number: 20180239161
    Abstract: An apparatus for driving an optical-reflector for optical image stabilization (OIS) with a multi-axial structure includes a support frame having a first groove rail formed therein, an optical-reflector disposed on the support frame to reflect light to a lens, a middle frame having a first guide rail corresponding to the first groove rail and a second groove rail formed therein, a base frame having a second guide rail formed corresponding to the second groove rail, a first ball disposed between the first groove rail and the first guide rail, a second ball disposed between the second groove rail and the second guide rail, a first driving unit configured to move the support frame in a first direction on the basis of the middle frame, and a second driving unit configured to move the middle frame in a second direction, different from the first direction, on the basis of the base frame.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 23, 2018
    Inventors: Jin Soo SEOL, Kyoung Yong LEE, Chul Soon PARK
  • Publication number: 20180239419
    Abstract: Disclosed is a wireless transceiver system including an image transmitting apparatus and an image receiving apparatus. The image receiving apparatus includes a receiving antenna having a head direction set for each received beam and a control unit that measures one or more of received signal strength, bit error rate, and signal to noise ratio for each received beam and tracks a receiving beam direction so as to track the received beam and create head tracking information.
    Type: Application
    Filed: August 24, 2017
    Publication date: August 23, 2018
    Applicant: WiseJet, Inc.
    Inventors: Inn Yeal OH, Byeong Nam AHN, Chul Soon PARK
  • Publication number: 20180224088
    Abstract: An apparatus for supporting an optical reflector to change a path of light and introduce the light to a lens includes an inclined unit configured to support a reflective surface of the optical reflector; a guide wall formed at a side of the inclined unit to support a side surface of the optical reflector; a guide opening formed in the guide wall; and a support member made of a material different from the material of the optical reflector and inserted into the guide opening so that an inner surface of the support member is fixedly coupled to the side surface of the optical reflector.
    Type: Application
    Filed: January 3, 2018
    Publication date: August 9, 2018
    Applicant: JAHWA electronics Co., Ltd.
    Inventors: Chul Soon PARK, Jung Min SON, Min Gyu SUH
  • Publication number: 20180175506
    Abstract: An antenna device includes a horn antenna including a waveguide and a horn connected to the waveguide, the horn having a shape widening toward an opening direction, a beamforming network including a plurality of input ports and a plurality of output ports and changing a phase of output port signals output from the output ports based on input port signals applied to the input ports, and an antenna array disposed in the horn antenna and connected to the output ports of the beamforming network.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 21, 2018
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Chul-Soon PARK, Tae-Hwan JANG, Hong-Yi KIM