Patents by Inventor Byoung-kwon Lee
Byoung-kwon Lee 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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Patent number: 11955887Abstract: A switch control circuit and a switch control method are provided. In this circuit, compositions that sense a drain voltage of a switch device are added in a QR Buck Converter switch control circuit. A first resistor, a second switch, a second resistor are electrically connected to a drain terminal of a switch device to sense the 0 A state of an inductor current. On the basis of a detection result, the switch control circuit turns on the switch device when an inductor current is 0 A, and a drain sensing voltage (ZCD) is less than a predetermined reference voltage (REF).Type: GrantFiled: December 9, 2021Date of Patent: April 9, 2024Assignee: MagnaChip Semiconductor, Ltd.Inventors: Jang Hyuck Lee, Joo Han Yoon, Byoung Kwon An
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Patent number: 11919122Abstract: A substrate processing apparatus includes: a conveyor belt configured to have an outer surface on which a bottom surface of a substrate is seated; and a polishing head unit configured to face an upper surface of the substrate, wherein the polishing head unit includes: a polishing head connected to a driver; a polishing pad configured to face the polishing head; a polishing pad fixing ring disposed between the polishing head and the polishing pad; and a temperature sensor configured to overlap the polishing pad fixing ring and to be spaced apart from the polishing pad fixing ring.Type: GrantFiled: September 29, 2020Date of Patent: March 5, 2024Assignees: SAMSUNG DISPLAY CO., LTD., KCTECH CO., LTD.Inventors: Seung Bae Kang, Sung Hyeon Park, Jung Gun Nam, Joon-Hwa Bae, Kyung Bo Lee, Keun Woo Lee, Woo Jin Cho, Byoung Kwon Choo
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Patent number: 9113075Abstract: Provided are a digital photographing apparatus and method of performing different degrees of image processing on one or more faces in an image according to the distances of faces from the digital photographing apparatus or whether auto-focusing has been performed on the faces. Also provided are a digital photographing apparatus and method of performing different degrees of image processing which assist in preventing faces at farther distances from appearing more processed, for example, more blurred, than faces at closer distances and which assist in preventing faces that have not been auto-focused from appearing more processed, for example, more blurred, than faces that have been auto-focused.Type: GrantFiled: October 17, 2013Date of Patent: August 18, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Su-jung Park, Soon-ea Kim, Seung-yun Lee, I-saac Lee, Byoung-kwon Lee
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Publication number: 20140043499Abstract: Provided are a digital photographing apparatus and method of performing different degrees of image processing on one or more faces in an image according to the distances of faces from the digital photographing apparatus or whether auto-focusing has been performed on the faces. Also provided are a digital photographing apparatus and method of performing different degrees of image processing which assist in preventing faces at farther distances from appearing more processed, for example, more blurred, than faces at closer distances and which assist in preventing faces that have not been auto-focused from appearing more processed, for example, more blurred, than faces that have been auto-focused.Type: ApplicationFiled: October 17, 2013Publication date: February 13, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Su-jung Park, Soon-ea Kim, Seung-yun Lee, I-saac Lee, Byoung-kwon Lee
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Patent number: 8582892Abstract: Provided are a method and an apparatus for processing digital images, and more particularly, a method and an apparatus for face determination, wherein it is determined if a subject is a true subject based on distance information regarding a distance to the subject and face detection information. In an embodiment, the face detecting apparatus is a digital image processing apparatus and includes a digital signal processor for determining if a subject is a true subject based on distance information regarding a distance to the subject and face length information.Type: GrantFiled: September 13, 2010Date of Patent: November 12, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Isaac Lee, Seung-yun Lee, Byoung-kwon Lee
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Patent number: 8570429Abstract: Provided are a digital photographing apparatus and method of performing different degrees of image processing on one or more faces in an image according to the distances of faces from the digital photographing apparatus or whether auto-focusing has been performed on the faces. Also provided are a digital photographing apparatus and method of performing different degrees of image processing which assist in preventing faces at farther distances from appearing more processed, for example, more blurred, than faces at closer distances and which assist in preventing faces that have not been auto-focused from appearing more processed, for example, more blurred, than faces that have been auto-focused.Type: GrantFiled: February 26, 2010Date of Patent: October 29, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Su-jung Park, Soon-ea Kim, Seung-yun Lee, I-saac Lee, Byoung-kwon Lee
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Patent number: 8368802Abstract: An automatic focusing method for a camera, including scanning in a macro mode, scanning in a normal mode, and additional scanning. In the scanning in the macro mode, a region within a first distance is scanned if the macro mode is set by a user. In the scanning in the normal mode, a region beyond the first distance is scanned if the normal mode is set by the user. In the additional scanning, the scanning in the normal mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the macro mode does not have the largest focus value, and the scanning in the macro mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the normal mode does not have the largest focus value.Type: GrantFiled: May 17, 2010Date of Patent: February 5, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Byoung-kwon Lee
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Patent number: 8224171Abstract: A method of driving a lens barrel includes detecting a movement detection signal that indicates an operation of the lens barrel which operates using a stepping motor; determining a limit time during which movement of a lens barrel component is detected based on the movement detection signal; detecting the movement from the movement detection signal; and changing a driving level of the stepping motor from a first driving level to a second driving level when movement of the lens barrel component is not detected from the movement detection signal within the limit time, wherein torque of the second driving level is greater than torque of the first driving level.Type: GrantFiled: October 21, 2010Date of Patent: July 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-jin Kim, Byoung-kwon Lee
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Patent number: 8189092Abstract: Provided are an apparatus and method for adjusting focus using the MTF characteristics of a lens in a digital image processing apparatus that adjusts focus using optical characteristics of a lens. The apparatus for adjusting focus includes: an image pickup unit in which modulation transfer function (MTF) data, which can be used to represent the performance of a lens, is stored; and a digital signal processing unit that calculates a focus peak value of an image and a defocus correction value based on the MTF data, and corrects the focus position using the focus peak value and the defocus correction value.Type: GrantFiled: May 14, 2009Date of Patent: May 29, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-shik Koh, Kazuhiko Sugimoto, Dong Yi, Byoung-kwon Lee, Eun-ho Kim
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Patent number: 8059164Abstract: A photographing device for photographing a subject is provided. The photographing device includes a face recognition unit recognizing a face included in an image of the subject; a distance calculation unit calculating a distance between each of a plurality of faces when the plurality of faces are recognized by the face recognition unit; and a distance comparison unit comparing the distance calculated by the distance calculation unit with a pre-set reference distance. A of controlling the photographing device is also provided.Type: GrantFiled: November 6, 2008Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Eun-ho Kim, Byoung-kwon Lee
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Publication number: 20110097066Abstract: A method of driving a lens barrel includes detecting a movement detection signal that indicates an operation of the lens barrel which operates using a stepping motor; determining a limit time during which movement of a lens barrel component is detected based on the movement detection signal; detecting the movement from the movement detection signal; and changing a driving level of the stepping motor from a first driving level to a second driving level when movement of the lens barrel component is not detected from the movement detection signal within the limit time, wherein torque of the second driving level is greater than torque of the first driving level.Type: ApplicationFiled: October 21, 2010Publication date: April 28, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Chang-jin Kim, Byoung-kwon Lee
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Publication number: 20110064313Abstract: Provided are a method and an apparatus for processing digital images, and more particularly, a method and an apparatus for face determination, wherein it is determined if a subject is a true subject based on distance information regarding a distance to the subject and face detection information. In an embodiment, the face detecting apparatus is a digital image processing apparatus and includes a digital signal processor for determining if a subject is a true subject based on distance information regarding a distance to the subject and face length information.Type: ApplicationFiled: September 13, 2010Publication date: March 17, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Isaac Lee, Seung-yun Lee, Byoung-kwon Lee
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Publication number: 20100225800Abstract: An automatic focusing method for a camera, including scanning in a macro mode, scanning in a normal mode, and additional scanning. In the scanning in the macro mode, a region within a first distance is scanned if the macro mode is set by a user. In the scanning in the normal mode, a region beyond the first distance is scanned if the normal mode is set by the user. In the additional scanning, the scanning in the normal mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the macro mode does not have the largest focus value, and the scanning in the macro mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the normal mode does not have the largest focus value.Type: ApplicationFiled: May 17, 2010Publication date: September 9, 2010Applicant: Samsung Electronics Co., Ltd.Inventor: Byoung-kwon Lee
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Publication number: 20100220208Abstract: Provided are a digital photographing apparatus and method of performing different degrees of image processing on one or more faces in an image according to the distances of faces from the digital photographing apparatus or whether auto-focusing has been performed on the faces. Also provided are a digital photographing apparatus and method of performing different degrees of image processing which assist in preventing faces at farther distances from appearing more processed, for example, more blurred, than faces at closer distances and which assist in preventing faces that have not been auto-focused from appearing more processed, for example, more blurred, than faces that have been auto-focused.Type: ApplicationFiled: February 26, 2010Publication date: September 2, 2010Applicant: Samsung Digital Imaging Co., Ltd.Inventors: Su-jung Park, Soon-ea Kim, Seung-yun Lee, I-saac Lee, Byoung-kwon Lee
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Patent number: 7719603Abstract: An automatic focusing method for a camera, including scanning in a macro mode, scanning in a normal mode, and additional scanning. In the scanning in the macro mode, a region within a first distance is scanned if the macro mode is set by a user. In the scanning in the normal mode, a region beyond the first distance is scanned if the normal mode is set by the user. In the additional scanning, the scanning in the normal mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the macro mode does not have the largest focus value, and the scanning in the macro mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the normal mode does not have the largest focus value.Type: GrantFiled: December 8, 2004Date of Patent: May 18, 2010Assignee: Samsung Digital Imaging Co., Ltd.Inventor: Byoung-kwon Lee
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Publication number: 20100026877Abstract: Provided are an apparatus and method for adjusting focus using the MTF characteristics of a lens in a digital image processing apparatus that adjusts focus using optical characteristics of a lens. The apparatus for adjusting focus includes: an image pickup unit in which modulation transfer function (MTF) data, which can be used to represent the performance of a lens, is stored; and a digital signal processing unit that calculates a focus peak value of an image and a defocus correction value based on the MTF data, and corrects the focus position using the focus peak value and the defocus correction value.Type: ApplicationFiled: May 14, 2009Publication date: February 4, 2010Applicant: Samsung Techwin Co., Ltd.Inventors: Sung-shik Koh, Kazuhiko Sugimoto, Dong Yi, Byoung-Kwon Lee, Eun-ho Kim
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Publication number: 20090115868Abstract: A photographing device for photographing a subject is provided. The photographing device includes a face recognition unit recognizing a face included in an image of the subject; a distance calculation unit calculating a distance between each of a plurality of faces when the plurality of faces are recognized by the face recognition unit; and a distance comparison unit comparing the distance calculated by the distance calculation unit with a pre-set reference distance. A of controlling the photographing device is also provided.Type: ApplicationFiled: November 6, 2008Publication date: May 7, 2009Applicant: Samsung Techwin Co., Ltd.Inventors: Eun-ho Kim, Byoung-kwon Lee
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Publication number: 20050185082Abstract: Provided is a focusing method for a digital photographing apparatus by which an image is displayed while a focal lens is moved in response to a manual operation signal generated by a user. The method includes: obtaining a focus value at a current position of the focal lens, wherein the focus value is proportionate to an amount of high-frequency components contained in an image displayed currently; determining a focusing state at the current position of the focal lens based on the focus value of the current position; and changing a sharpness of the currently displayed image such that the result of the determination of the focusing state can be expressed in the currently displayed image. A digital photographing apparatus using the method is also provided.Type: ApplicationFiled: January 5, 2005Publication date: August 25, 2005Applicant: Samsung Techwin Co., Ltd.Inventors: Byoung-kwon Lee, Hyon-soo Kim
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Publication number: 20050134720Abstract: An automatic focusing method for a camera, including scanning in a macro mode, scanning in a normal mode, and additional scanning. In the scanning in the macro mode, a region within a first distance is scanned if the macro mode is set by a user. In the scanning in the normal mode, a region beyond the first distance is scanned if the normal mode is set by the user. In the additional scanning, the scanning in the normal mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the macro mode does not have the largest focus value, and the scanning in the macro mode is performed additionally if it is determined that the position of the focus lens found in the scanning in the normal mode does not have the largest focus value.Type: ApplicationFiled: December 8, 2004Publication date: June 23, 2005Applicant: Samsung Techwin Co., Ltd.Inventor: Byoung-kwon Lee