Patents by Inventor Jin Wook Chang

Jin Wook Chang 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: 20250104580
    Abstract: Various implementations disclosed herein include devices, systems, and methods that present content items (e.g., movies, TV shows, home-made videos, etc.) on electronic devices such as HMDs. Some implementations adjust what is being displayed by the electronic devices to mitigate optical module-based artifacts (e.g., ghosting). For example, in an HMD with a catadioptric lens, a mirror layer may leak some light to produce ghosting artifacts that may be mitigated by adjusting brightness, dynamic range, contrast, light-spill, color, etc. Some implementations utilize adjustments that are based on content item awareness (e.g., adjustments based on the peak brightness of the scene in a movie that is being displayed within an extended reality (XR) environment, etc.). Some implementations provide adjustments based on environment awareness (e.g., how dark is the surroundings or pass-through environment) and/or optical module modeling.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 27, 2025
    Inventors: Stanley K. Melax, Seyedpooya Mirhosseini, Fuyi Yang, Seyedkoosha Mirhosseini, Dagny Fleischman, David M. Cook, Yashas Rai Kurlethimar, Xin Wang, Travis W. Brown, Ara H. Aroyan, Jin Wook Chang, Abbas Haddadi, Yang Li, Alexander G. Berardino, Mengu Sukan, Ermal Dreshaj, Kyrollos Yanny, William W. Sprague
  • Publication number: 20240104766
    Abstract: In one implementation, a method is performed for generating metadata estimations based on metadata subdivisions. The method includes: obtaining an input image; obtaining metadata associated with the input image; subdividing the metadata into a plurality of metadata subdivisions; determining a viewport relative to the input image based on at least one of head pose information and eye tracking information; generating one or more metadata estimations by performing an estimation algorithm on at least a portion of the plurality of metadata subdivisions based on the viewport; and generating an output image by performing an image processing algorithm on the input image based on the one or more metadata estimations.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 28, 2024
    Inventors: Xiaohua Yang, Jin Wook Chang, Xin Wang, Xuemei Zhang
  • Patent number: 11473971
    Abstract: A device comprises memory, a display characterized by a display characteristic, and processors coupled to the memory. The processors execute instructions causing the processors to receive data indicative of the display characteristic, data indicative of ambient lighting, and data indicative of content characteristics for a content item; determine a tone mapping curve for the content item based on the data indicative of content characteristics; determine a first, so-called “anchor” point along the tone mapping curve; modify a first portion of the tone mapping curve below the anchor point based on the data indicative of ambient lighting; modify a second portion of the tone mapping curve above the anchor point based on the data indicative of the display characteristic; perform tone mapping for the content item based on the modified toned mapping curve to obtain a tone mapped content item; and cause the display to display the tone mapped content item.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 18, 2022
    Assignee: Apple Inc.
    Inventors: Xiaohua Yang, Ruiqi Hu, Hao Pan, Vaidyanath Mani, Qiang Wang, Haiyan He, Xin Wang, Gui Xie, Jin Wook Chang
  • Publication number: 20210096023
    Abstract: A device comprises memory, a display characterized by a display characteristic, and processors coupled to the memory. The processors execute instructions causing the processors to receive data indicative of the display characteristic, data indicative of ambient lighting, and data indicative of content characteristics for a content item; determine a tone mapping curve for the content item based on the data indicative of content characteristics; determine a first, so-called “anchor” point along the tone mapping curve; modify a first portion of the tone mapping curve below the anchor point based on the data indicative of ambient lighting; modify a second portion of the tone mapping curve above the anchor point based on the data indicative of the display characteristic; perform tone mapping for the content item based on the modified toned mapping curve to obtain a tone mapped content item; and cause the display to display the tone mapped content item.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 1, 2021
    Inventors: Xiaohua Yang, Ruiqi Hu, Hao Pan, Vaidyanath Mani, Qiang Wang, Haiyan He, Xin Wang, Gui Xie, Jin Wook Chang
  • Patent number: 9657698
    Abstract: Disclosed herein is a vehicle fuel pump module. The vehicle fuel pump module is configured such that a controller is spaced apart from a plate body installed so as to be exposed out of a fuel tank by a support member and an air gap is provided between the plate body and the controller. Consequently, a gas generated from a fuel in the fuel tank is discharged to the atmosphere by an outdoor air circulating the air gap and thus it may be possible to prevent the gas from affecting electronic parts of the controller.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 23, 2017
    Assignee: Hyundam Industrial Co., Ltd.
    Inventors: Kyoung Sik Park, Kwan Beom Oh, Won Sang Cho, Jin Wook Chang
  • Publication number: 20160252058
    Abstract: Disclosed herein is a vehicle fuel pump module. The vehicle fuel pump module is configured such that a controller is spaced apart from a plate body installed so as to be exposed out of a fuel tank by a support member and an air gap is provided between the plate body and the controller. Consequently, a gas generated from a fuel in the fuel tank is discharged to the atmosphere by an outdoor air circulating the air gap and thus it may be possible to prevent the gas from affecting electronic parts of the controller.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 1, 2016
    Inventors: Kyoung Sik PARK, Kwan Beom OH, Won Sang CHO, Jin Wook CHANG
  • Patent number: 8358465
    Abstract: A three-dimensional (3D) display system and a method for use in the same are disclosed. The 3D display system includes: a display panel which includes a plurality of pixels, applies several-direction parallax image signals to the pixels according to regulations of a specific mode, and displays the several-direction parallax image signals; and a filter which is located at at least one of a front part and a rear part of the display panel, forms a predetermined barrier pattern according to regulations of the specific mode to implement a three-dimensional image, and separates the several-direction parallax image signals from each other.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: January 22, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Wook Chang, Kyoung Il Lee, Tae Soo Park
  • Patent number: 7520638
    Abstract: An image display with a radiator is disclosed. The image display includes a light source for generating light, a display panel for receiving the light, to display an image using the received light, and a radiator arranged between the light source and the display panel, the radiator including at least one air hole for discharging internal heat of the image display.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: April 21, 2009
    Assignee: LG Electronics Inc.
    Inventors: Jin Wook Chang, Kyoung Lee, II, Tao Soo Park
  • Publication number: 20070165023
    Abstract: An image display with a radiator is disclosed. The image display includes a light source for generating light, a display panel for receiving the light, to display an image using the received light, and a radiator arranged between the light source and the display panel, the radiator including at least one air hole for discharging internal heat of the image display.
    Type: Application
    Filed: October 31, 2006
    Publication date: July 19, 2007
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Wook Chang, Kyoung Lee, Tae Soo Park