Patents by Inventor Chi-hun Hwang

Chi-hun Hwang 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: 20240128653
    Abstract: Disclosed is a meta-structure. The meta-structure includes a lower electrode, a lower insulating layer on the lower electrode, a lower metal oxide layer on the lower insulating layer, a metal layer on the lower metal oxide layer, an upper metal oxide layer on the metal layer, an upper insulating layer on the upper metal oxide layer, and antenna electrodes on the upper insulating layer.
    Type: Application
    Filed: June 28, 2023
    Publication date: April 18, 2024
    Inventors: Yong Hae KIM, Chi-Sun HWANG, Joo Yeon KIM, Jaehyun MOON, Jong-Heon YANG, Kyunghee CHOI, Ji Hun CHOI
  • Publication number: 20240079413
    Abstract: A complementary thin film transistor (TFT) includes a substrate and a first TFT and a second TFT disposed on the substrate, wherein a first conductive semiconductor layer of the first TFT and a second gate electrode layer of the second TFT are disposed in the same layer and include the same material.
    Type: Application
    Filed: August 31, 2023
    Publication date: March 7, 2024
    Inventors: Himchan OH, Jong-Heon YANG, Ji Hun CHOI, Seung Youl KANG, Yong Hae KIM, Jeho NA, Jaehyun MOON, Chan Woo PARK, Sung Haeng CHO, Jae-Eun PI, Chi-Sun HWANG
  • Patent number: 9041859
    Abstract: An image sensor assembly includes: an image sensor; a support plate disposed on a back surface of the image sensor; a first frame which includes a first hole which is open allowing incident light onto the image sensor and is disposed on a front surface of the support plate to enclose at least a side edge of the image sensor; an optical filter disposed in the first hole to block a part of the incident light; a second frame which includes a second hole which is open to allow light to be incident onto the optical filter and is disposed in front of the first frame; a front plate which is disposed in front of the second hole to contact a front surface of at least a side edge of the second frame; and a vibrator which is combined with at least a side edge of the front plate.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 26, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-ho Ji, Chi-hun Hwang
  • Publication number: 20140132821
    Abstract: An image sensor assembly includes: an image sensor; a support plate disposed on a back surface of the image sensor; a first frame which includes a first hole which is open allowing incident light onto the image sensor and is disposed on a front surface of the support plate to enclose at least a side edge of the image sensor; an optical filter disposed in the first hole to block a part of the incident light; a second frame which includes a second hole which is open to allow light to be incident onto the optical filter and is disposed in front of the first frame; a front plate which is disposed in front of the second hole to contact a front surface of at least a side edge of the second frame; and a vibrator which is combined with at least a side edge of the front plate.
    Type: Application
    Filed: January 22, 2014
    Publication date: May 15, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eun-ho Ji, Chi-hun Hwang
  • Patent number: 8638391
    Abstract: An image sensor assembly includes: an image sensor; a support plate disposed on a back surface of the image sensor; a first frame which includes a first hole which is open allowing incident light onto the image sensor and is disposed on a front surface of the support plate to enclose at least a side edge of the image sensor; an optical filter disposed in the first hole to block a part of the incident light; a second frame which includes a second hole which is open to allow light to be incident onto the optical filter and is disposed in front of the first frame; a front plate which is disposed in front of the second hole to contact a front surface of at least a side edge of the second frame; and a vibrator which is combined with at least a side edge of the front plate.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: January 28, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-ho Ji, Chi-hun Hwang
  • Patent number: 8599308
    Abstract: A photographing apparatus includes an imaging device that converts an optical image of an object into an electrical signal; a vibration plate disposed at a front direction of the imaging device; a vibration generator which is mounted on the vibration plate and vibrates the vibration plate; a support frame which is located between the imaging device and the vibration plate, and supports edges of the vibration plate; and a vibration plate pressing unit which is connected in the support frame and includes a part which presses at least an area of the vibration plate.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-ho Ji, Chi-hun Hwang
  • Publication number: 20120287335
    Abstract: A photographing apparatus includes an imaging device that converts an optical image of an object into an electrical signal; a vibration plate disposed at a front direction of the imaging device; a vibration generator which is mounted on the vibration plate and vibrates the vibration plate; a support frame which is located between the imaging device and the vibration plate, and supports edges of the vibration plate; and a vibration plate pressing unit which is connected in the support frame and includes a part which presses at least an area of the vibration plate.
    Type: Application
    Filed: October 27, 2011
    Publication date: November 15, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eun-ho Ji, Chi-hun Hwang
  • Patent number: 8174606
    Abstract: A digital photographing apparatus is provided including a lens unit, an imaging device, and a main mirror disposed between the lens unit and the imaging device, wherein the position of the main mirror can be changed so that the main mirror either reflects at least part of light which passed through the lens unit toward a first orientation or the main mirror is not positioned on a path of the light which passed through the lens unit such that the light can be incident to the imaging device. A prism unit, a viewfinder, and an image sensor for live view are also included in the apparatus. A method of controlling the digital photographing apparatus, and a storage medium having recorded thereon a computer program for executing the method are also provided.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chi-hun Hwang, Myung-gyu Kim
  • Publication number: 20120050609
    Abstract: An image sensor assembly includes: an image sensor; a support plate disposed on a back surface of the image sensor; a first frame which includes a first hole which is open allowing incident light onto the image sensor and is disposed on a front surface of the support plate to enclose at least a side edge of the image sensor; an optical filter disposed in the first hole to block a part of the incident light; a second frame which includes a second hole which is open to allow light to be incident onto the optical filter and is disposed in front of the first frame; a front plate which is disposed in front of the second hole to contact a front surface of at least a side edge of the second frame; and a vibrator which is combined with at least a side edge of the front plate.
    Type: Application
    Filed: June 1, 2011
    Publication date: March 1, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eun-Ho Ji, Chi-Hun Hwang
  • Patent number: 8019214
    Abstract: A camera accessory coupling apparatus capable of easily and quickly coupling a camera body to a camera accessory is provided. The camera accessory coupling apparatus includes a holder selectively detachable from the camera body; a locking pin, disposed in the holder, a portion of which may enter the holder or exit from the holder; an elastic member contacting the locking pin and applying an elastic force to the locking pin; and a locking lever coupled with the holder and selectively contactable with the elastic member to control the entering and exiting of the locking pin with respect to the holder.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: September 13, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chi-hun Hwang
  • Publication number: 20110194008
    Abstract: Provided is a photographing apparatus capable of completely removing dust from a surface of an image pickup unit mounted in the photographing apparatus. The photographing apparatus includes: a lens unit comprising a plurality of lenses; an image pickup unit that receives image light from the lens unit to form the image light into an image; a filter disposed on a side of the image pickup unit; a first vibration generating unit that is coupled to a first side of the filter; and a second vibration generating unit that is coupled to a second side of the filter opposite to the first side.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 11, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chi-hun Hwang
  • Patent number: 7917029
    Abstract: An automatic-lens-connection-type camera system, which detects insertion of a lens unit into a mount part and automatically screws a mount connector to connect the lens unit with the mount part, and a method for controlling the camera system. The camera system includes a body, a lens module mounted to be attachable to and detachable from the body, a lens module insertion part mounted on a surface of the lens module that faces the body, and a mount part for detecting insertion of the lens module into the body to mount the lens module insertion part on the body.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: March 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chi-hun Hwang
  • Publication number: 20100166418
    Abstract: A camera accessory coupling apparatus capable of easily and quickly coupling a camera body to a camera accessory is provided. The camera accessory coupling apparatus includes a holder selectively detachable from the camera body; a locking pin, disposed in the holder, a portion of which may enter the holder or exit from the holder; an elastic member contacting the locking pin and applying an elastic force to the locking pin; and a locking lever coupled with the holder and selectively contactable with the elastic member to control the entering and exiting of the locking pin with respect to the holder.
    Type: Application
    Filed: December 11, 2009
    Publication date: July 1, 2010
    Applicant: Samsung Digital Imaging Co., Ltd.
    Inventor: Chi-hun Hwang
  • Publication number: 20100007771
    Abstract: A digital photographing apparatus is provided including a lens unit, an imaging device, and a main mirror disposed between the lens unit and the imaging device, wherein the position of the main mirror can be changed so that the main mirror either reflects at least part of light which passed through the lens unit toward a first orientation or the main mirror is not positioned on a path of the light which passed through the lens unit such that the light can be incident to the imaging device. A prism unit, a viewfinder, and an image sensor for live view are also included in the apparatus. A method of controlling the digital photographing apparatus, and a storage medium having recorded thereon a computer program for executing the method are also provided.
    Type: Application
    Filed: June 25, 2009
    Publication date: January 14, 2010
    Applicant: Samsung Digital Imaging Co., Ltd.
    Inventors: Chi-hun Hwang, Myung-Gyu Kim
  • Publication number: 20090067831
    Abstract: An automatic-lens-connection-type camera system, which detects insertion of a lens unit into a mount part and automatically screws a mount connector to connect the lens unit with the mount part, and a method for controlling the camera system. The camera system includes a body, a lens module mounted to be attachable to and detachable from the body, a lens module insertion part mounted on a surface of the lens module that faces the body, and a mount part for detecting insertion of the lens module into the body to mount the lens module insertion part on the body.
    Type: Application
    Filed: July 1, 2008
    Publication date: March 12, 2009
    Applicant: Samsung Techwin Co., Ltd.
    Inventor: Chi-hun Hwang