Patents by Inventor Chang-hyun Park

Chang-hyun 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).

  • Patent number: 11989448
    Abstract: Provided herein may be a memory controller and a memory system including the same. The memory controller includes a scanning period controller configured to reset, whenever scanning points sequentially arrive, access information indicating whether each of a plurality of pages is accessed, and set a scanning interval for each of the pages between the scanning points for the page based on an attribute of the page, an attribute determiner configured to determine, as a hot page or a cold page, the attribute of each of the pages based on an access interval for the page from the first scanning point among the scanning points for the page to time at which access to data stored in the page is requested, and a memory allocator configured to control first and second memory devices based on the attributes of the pages.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: May 21, 2024
    Assignee: SK hynix Inc.
    Inventors: Jun Hee Ryu, Kwang Jin Ko, Chang Hyun Park, Young Pyo Joo
  • Patent number: 11953014
    Abstract: An integrated water pump and valve device in which a water pump and a valve are integrally controlled by a single controller, and the water pump and the valve are integrated, thereby reducing an overall size.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: April 9, 2024
    Assignee: GMB KOREA CORP.
    Inventors: Kyung Hwan Kim, Chang Hyun Park, Jae Sung Bae
  • Publication number: 20240106551
    Abstract: A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and/or a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, and/or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.
    Type: Application
    Filed: September 27, 2022
    Publication date: March 28, 2024
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Bon-Jin KU, Seung-Gon HONG, Chang-Hyun PARK
  • Publication number: 20240035477
    Abstract: An integrated water pump and valve device in which a water pump and a valve are integrally controlled by a single controller, and the water pump and the valve are integrated, thereby reducing an overall size.
    Type: Application
    Filed: February 9, 2022
    Publication date: February 1, 2024
    Inventors: Kyung Hwan KIM, Chang Hyun PARK, Jae Sung BAE
  • Patent number: 11870325
    Abstract: The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: January 9, 2024
    Assignees: LG INNOTEK CO., LTD., MANDO CORPORATION
    Inventors: Kyung Sang Park, Seong Jin Kim, Jung Woo Jo, Chang Hyun Park
  • Publication number: 20230417799
    Abstract: A multi-channel analog-digital converter (ADC) subsystem for test device such as a spectrum analyzer may include multiple multi-channel ADCs to receive down-converted signals and convert the received signals to digital output signals, a field programmable gate array (FPGA) to select one or more ADCs based on a frequency, a bandwidth, and/or a signal type of each received signal and a characteristic of each ADC, and an ADC sample clock to provide a clock signal to the selected ADCs. Characteristics of the ADCs may include a resolution, a signal-to-noise-and-distortion ratio (SINAD), an effective number of bits (ENOB), a signal-to-noise ratio (SNR), a total harmonic distortion (THD), a total harmonic distortion plus noise (THD+N), and/or a spurious free dynamic range (SFDR).
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Applicant: VIAVI SOLUTIONS INC.
    Inventors: Chang-Hyun PARK, Bon-Jin KU, Seung-Gon HONG
  • Publication number: 20230398838
    Abstract: An integrated device of a pump and a valve is disclosed. The integrated device of a pump and a valve includes a drive unit, a valve assembly mounted on the drive unit and configured to be switchable to a first position or a second position by the drive unit, a pump mounted on the drive unit, and a controller configured to control operation of the drive unit and the pump. The valve assembly includes a plurality of inlets and a plurality of outlets. At the first position and the second position of the valve assembly, different fluid passages are formed in the valve assembly. The pump is configured to communicate with the valve assembly to allow a flow of fluid through the valve assembly.
    Type: Application
    Filed: December 20, 2022
    Publication date: December 14, 2023
    Inventors: Ji Woong JUNG, Seung Woo YANG, Gun Goo LEE, Kyung Hwan KIM, Chang Hyun PARK, Jae Sung BAE
  • Publication number: 20230342046
    Abstract: The present technology relates to an electronic device. According to the present technology, a memory controller may include an attribute determiner configured to determine an attribute of each of a plurality of pages included in a first external device to indicate one of a hot page and a cold page, based on an access interval which is an interval from a time at which data is stored in each of the pages to a time at which access to the data is requested, a page analyzer configured to determine a ratio of hot pages having a hot page attribute to the plurality of pages, and a memory allocator configured to control one of the first external device and the second external device to store therein externally provided data based on the ratio of hot pages.
    Type: Application
    Filed: October 4, 2022
    Publication date: October 26, 2023
    Inventors: Jun Hee RYU, Chang Hyun PARK, Kwang Jin KO, Young Pyo JOO
  • Patent number: 11774108
    Abstract: The present disclosure relates to a cooking apparatus, a method of controlling the cooking apparatus, and a knob of the cooking apparatus. An aspect of the present disclosure is to provide a display on a knob for setting a function of a cooking apparatus and to display status information of the cooking apparatus through the display of the knob, so that a user can easily and conveniently check the status information of the cooking apparatus. The cooking apparatus includes a knob comprising a fixing member fixed to a main body of the cooking apparatus, a rotating member supported by the fixing member and rotatably installed on the main body, and a display provided on the fixing member to display status information of the cooking apparatus; and a controller configured to transmit the status information of the cooking apparatus displayed on the display through a wireless communication network.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 3, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Hyun Park, Hwa-Sung Kim, Su-Ho Jo, Jae Hoon Cha
  • Publication number: 20230305743
    Abstract: Provided herein may be a memory controller and a memory system including the same. The memory controller includes a scanning period controller configured to reset, whenever scanning points sequentially arrive, access information indicating whether each of a plurality of pages is accessed, and set a scanning interval for each of the pages between the scanning points for the page based on an attribute of the page, an attribute determiner configured to determine, as a hot page or a cold page, the attribute of each of the pages based on an access interval for the page from the first scanning point among the scanning points for the page to time at which access to data stored in the page is requested, and a memory allocator configured to control first and second memory devices based on the attributes of the pages.
    Type: Application
    Filed: August 16, 2022
    Publication date: September 28, 2023
    Inventors: Jun Hee RYU, Kwang Jin Ko, Chang Hyun Park, Young Pyo Joo
  • Patent number: 11678194
    Abstract: A method performed by an electronic apparatus to provide information associated with activation of a portable terminal according to various embodiments includes acquiring order information associated with the portable terminal, acquiring information associated with delivery of the portable terminal corresponding to the order information from a server, and, based on the order information and the information associated with the delivery of the portable terminal, providing the information associated with the activation of the portable terminal, and the information associated with the activation comprises information on whether the portable terminal has been shipped out.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: June 13, 2023
    Assignee: Coupang Corp.
    Inventors: Cho Rong Kim, Jung Hun Lee, Min Jung Lee, Han Sol Kim, Young Jin Kim, Chang Hyun Park, Sang Won Seo, Hye Jin Kim, So Yeon Son, Mi Seon Lim, Yoo Jin Yang, Yoo Jeong Jo
  • Publication number: 20230155439
    Abstract: The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed in the stator, a busbar disposed on the stator, a plate disposed on the busbar, and a terminal part including a body part in contact with the plate and a protruding part protruding from the body part and disposed on the plate, wherein a part of the body part is disposed between the housing and the plate in a radial direction.
    Type: Application
    Filed: March 19, 2021
    Publication date: May 18, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Chang Hyun PARK, Dong Hyun SHIN
  • Publication number: 20230155450
    Abstract: The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.
    Type: Application
    Filed: January 17, 2023
    Publication date: May 18, 2023
    Inventors: Kyung Sang PARK, Seong Jin KIM, Jung Woo JO, Chang Hyun PARK
  • Publication number: 20230125238
    Abstract: The present invention can provide a motor including a housing, a stator disposed in the housing, a rotor disposed inside the stator, and a shaft coupled to the rotor, wherein the stator includes a stator core in contact with the housing, the stator core includes a first region and a second region having different outer diameters, the housing includes a third region and a fourth region having different inner diameters, the outer diameter of the first region is smaller than the outer diameter of the second region, the inner diameter of the third region is greater than the inner diameter of the fourth region, and the first region and the third region are disposed to overlap in a radial direction of the shaft.
    Type: Application
    Filed: March 18, 2021
    Publication date: April 27, 2023
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Hee Chul JUNG, Chang Hyun PARK
  • Patent number: 11634819
    Abstract: Provided is a solution composition for steel sheet surface treatment, comprising 30 wt % to 60 wt % of a trivalent chromium compound containing chromium phosphate (A) and chromium nitrate (B); 0.2 wt % to 0.4 wt % of a rust-inhibiting and corrosion-resisting agent; 0.1 wt % to 0.3 wt % of a molybdenum-based compound; 5 wt % to 10 wt % of a water-soluble cationic urethane resin; 0.5 wt % to 2.0 wt % of a silane coupling agent; and 27.3 wt % to 64.2 wt % of water, a zinc-based plated steel sheet surface-treated with the same, and a manufacturing method therefor, the zinc-based plated steel sheet surface-treated with the solution composition for steel sheet surface treatment containing trivalent chromium may have an excellent effect on corrosion resistance, blackening resistance, fingerprint resistance, oil resistance, and alkali resistance.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: April 25, 2023
    Assignees: POSCO, NOROO COIL COATINGS CO., LTD.
    Inventors: Soo-Hyoun Cho, Dae-Chul Bae, Dong-Yun Kim, Chang-Hyun Park
  • Patent number: 11632477
    Abstract: An apparatus for reading an image executes operations including receiving a plurality of images for a same subject from a photographing device, obtaining a screen division value related to the plurality of images, checking focused sections of the plurality of images based on the obtained screen division value, and determining type of the plurality of images based on a result of checking the focused sections. According to the apparatus, it can be determined whether an image is actually photographed without a separate ToF module.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: April 18, 2023
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Min Ki Hong, Chang Hyun Park, Do Yeon Kim, Se Hyeon Park, Kwan Sik Yoon, Sol Bi Hwang, Jae Hyeon Lee, Yong Hyun Jeong, Hyun Chul Park
  • Patent number: 11588375
    Abstract: The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: February 21, 2023
    Assignees: LG INNOTEK CO., LTD.
    Inventors: Kyung Sang Park, Seong Jin Kim, Jung Woo Jo, Chang Hyun Park
  • Publication number: 20230049014
    Abstract: An apparatus for reading an image executes operations including receiving a plurality of images for a same subject from a photographing device, obtaining a screen division value related to the plurality of images, checking focused sections of the plurality of images based on the obtained screen division value, and determining type of the plurality of images based on a result of checking the focused sections. According to the apparatus, it can be determined whether an image is actually photographed without a separate ToF module.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 16, 2023
    Inventors: Min Ki HONG, Chang Hyun PARK, Do Yeon KIM, Se Hyeon PARK, Kwan Sik YOON, Sol Bi HWANG, Jae Hyeon LEE, Yong Hyun JEONG, Hyun Chul PARK
  • Publication number: 20230006497
    Abstract: Provided is an embodiment of a motor comprising: a shaft; a rotor coupled to the shaft; a stator disposed so as to face the motor; a housing for accommodating the stator; and a bus bar electrically connected to the stator, wherein the housing comprises a first stepped part on which at least a part of the bus bar is disposed.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 5, 2023
    Inventors: Woo Ho JEONG, Chang Hyun PARK
  • Patent number: 11526974
    Abstract: A method for photographing an image performed by a computer device according to an embodiment of the present application includes obtaining a screen division value for photographing an image, classifying a photographing screen into a plurality of sections based on the screen division value, photographing a first image by focusing a first section among the plurality of sections, photographing a second image by focusing a second section among the plurality of sections and transmitting the first image and the second image to a server. According to the method, it is capable of reading whether an image is actually photographed without having a separate ToF module, and applicable to an outdoor environment on which interference from other light rays is strong.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 13, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Min Ki Hong, Chang Hyun Park, Do Yeon Kim, Se Hyeon Park, Kwan Sik Yoon, Sol Bi Hwang, Jae Hyeon Lee, Yong Hyun Jeong, Hyun Chui Park