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).
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Publication number: 20240128653Abstract: 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: ApplicationFiled: June 28, 2023Publication date: April 18, 2024Inventors: Yong Hae KIM, Chi-Sun HWANG, Joo Yeon KIM, Jaehyun MOON, Jong-Heon YANG, Kyunghee CHOI, Ji Hun CHOI
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Publication number: 20240079413Abstract: 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: ApplicationFiled: August 31, 2023Publication date: March 7, 2024Inventors: 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
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Patent number: 9041859Abstract: 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: GrantFiled: January 22, 2014Date of Patent: May 26, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-ho Ji, Chi-hun Hwang
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Publication number: 20140132821Abstract: 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: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eun-ho Ji, Chi-hun Hwang
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Patent number: 8638391Abstract: 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: GrantFiled: June 1, 2011Date of Patent: January 28, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-ho Ji, Chi-hun Hwang
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Patent number: 8599308Abstract: 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: GrantFiled: October 27, 2011Date of Patent: December 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-ho Ji, Chi-hun Hwang
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Publication number: 20120287335Abstract: 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: ApplicationFiled: October 27, 2011Publication date: November 15, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Eun-ho Ji, Chi-hun Hwang
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Patent number: 8174606Abstract: 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: GrantFiled: June 25, 2009Date of Patent: May 8, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chi-hun Hwang, Myung-gyu Kim
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Publication number: 20120050609Abstract: 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: ApplicationFiled: June 1, 2011Publication date: March 1, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Eun-Ho Ji, Chi-Hun Hwang
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Patent number: 8019214Abstract: 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: GrantFiled: December 11, 2009Date of Patent: September 13, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Chi-hun Hwang
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Publication number: 20110194008Abstract: 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: ApplicationFiled: January 31, 2011Publication date: August 11, 2011Applicant: Samsung Electronics Co., Ltd.Inventor: Chi-hun Hwang
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Patent number: 7917029Abstract: 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: GrantFiled: July 1, 2008Date of Patent: March 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Chi-hun Hwang
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Publication number: 20100166418Abstract: 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: ApplicationFiled: December 11, 2009Publication date: July 1, 2010Applicant: Samsung Digital Imaging Co., Ltd.Inventor: Chi-hun Hwang
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Publication number: 20100007771Abstract: 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: ApplicationFiled: June 25, 2009Publication date: January 14, 2010Applicant: Samsung Digital Imaging Co., Ltd.Inventors: Chi-hun Hwang, Myung-Gyu Kim
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Publication number: 20090067831Abstract: 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: ApplicationFiled: July 1, 2008Publication date: March 12, 2009Applicant: Samsung Techwin Co., Ltd.Inventor: Chi-hun Hwang