Patents by Inventor Jae-Cheol Lee

Jae-Cheol 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).

  • Publication number: 20130116535
    Abstract: An apparatus and method for diagnosing a lesion are provided. The apparatus includes an acquisition unit configured to acquire first blood-vessel information regarding a blood vessel from an image including the blood vessel, and an extraction unit configured to extract one or more tissue regions from the image based on the first blood-vessel information.
    Type: Application
    Filed: April 23, 2012
    Publication date: May 9, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Cheol Lee, Yeong-Kyeong Seong, Kyoung-Gu Woo
  • Patent number: 8426852
    Abstract: Transistors and electronic apparatuses including the same are provided, the transistors include a channel layer on a substrate. The channel layer includes a zinc (Zn)-containing oxide. The transistors include a source and a drain, respectively, contacting opposing ends of the channel layer, a gate corresponding to the channel layer, and a gate insulating layer insulating the channel layer from the gate. The channel layer has a first surface adjacent to the substrate, a second surface facing the first surface, and a channel layer-protection portion on the second surface. The channel layer-protection portion includes a fluoride material.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: April 23, 2013
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Jae-cheol Lee, Chang-seung Lee, Jae-gwan Chung, Eun-ha Lee, Anass Benayad, Sang-wook Kim, Se-jung Oh
  • Patent number: 8416267
    Abstract: Provided are an apparatus for processing adaptive video and a method of scaling video, which generate a graphical user interface (GUI) so that a GUI suitable for the screen size of a display device can be displayed according to the screen size of the display device. The apparatus can realize a GUI most suitable for the screen size of an external display device connected to the apparatus by enlarging or reducing the size of the GUI according to the screen size of the external display device, or by changing the arrangement of items arranged on the GUI.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: April 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-jun Park, Hee-soo Lee, Byung-soo Kim, Jae-cheol Lee
  • Patent number: 8385984
    Abstract: A method and apparatus to supply a power voltage to a mobile device in a variable manner in order to provide high output power and a high quality sound environment and a mobile device using the same. The apparatus includes a volume control unit to detect installation of an external power supply and to generate a voltage control value corresponding to a current volume level, and a DC-DC converter unit to convert a voltage of an internal power supply in a variable manner on the basis of the voltage control value generated in the volume control unit in order to drive the switching power amplifier.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: February 26, 2013
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Jae-cheol Lee, Hae-kwang Park
  • Publication number: 20130039573
    Abstract: A device and method of removing chromatic aberration which occurs in an image generated by capturing a target subject. The chromatic aberration removing device includes a chromatic aberration region detecting unit which detects a chromatic aberration occurrence region in an input image, a coefficient calculating unit which calculates a minimizing pixel value which minimizes a difference between sizes, numbers of pixels or intensities of edges of red, green, and blue (RGB) channels of the chromatic aberration occurrence region, a chroma signal processing unit which removes chromatic aberration in the chromatic aberration occurrence region, and a purple fringing removing unit which removes purple fringing.
    Type: Application
    Filed: July 17, 2012
    Publication date: February 14, 2013
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, SAMSUNG TECHWIN CO., LTD.
    Inventors: Eun-Cheol CHOI, Jae-Cheol LEE, Moon-Gi Kang, Hee Kang
  • Publication number: 20130033318
    Abstract: A switching amplifier is provided. The switching amplifier includes an input unit which receives an audio signal; a first switching device and a second switching device which switch and output the audio signal; a first snubber circuit which is commonly connected to the first and second switching devices and which reduces overshoot of the audio signal that is output by the first and second switching devices via switching; and a second snubber circuit which is commonly connected to the first and second switching devices, which is connected in parallel to the first snubber circuit and which reduces the overshoot of the audio signal, wherein the first and second snubber circuits alternately reduce the overshoot of the audio signal.
    Type: Application
    Filed: June 19, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-cheol LEE, Hae-jong KIM
  • Publication number: 20130027131
    Abstract: A sound output device is provided. The sound output device includes a vacuum tube for amplifying an audio signal; a power supply that supplies power to the vacuum tube; a first switch circuit that selectively connects the power supply to the vacuum tube; and a controller that controls the first switch circuit according to whether the vacuum tube is used.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 31, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-cheol LEE, Byung-soo KIM, Joo-moon YOUN, Kee-yeong CHO
  • Publication number: 20130028445
    Abstract: An audio signal output apparatus and a method for processing an audio signal thereof are provided. the audio signal output apparatus including: an amplification unit receiving and amplifying which receives and amplifies an audio signal; a plurality of comparison units repeatedly comparing which performs comparisons of input levels of the audio signal using with different threshold values; and a control unit controlling which controls an output of the audio signal through by changing of gains a gain of the amplification unit units in accordance with the results of comparison the comparisons performed by the plurality of comparison units.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 31, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-cheol LEE, Jong-woo KIM, Byung-soo KIM, Ki-don HONG
  • Publication number: 20120282734
    Abstract: An oxide thin film transistor and a method of manufacturing the oxide TFT are provided. The oxide thin film transistor (TFT) including: a gate; a channel formed to correspond to the gate, and a capping layer having a higher work function than the channel; a gate insulator disposed between the gate and the channel; and a source and drain respectively contacting either side of the capping layer and the channel and partially on a top surface of the capping layer.
    Type: Application
    Filed: July 18, 2012
    Publication date: November 8, 2012
    Inventors: Sun-il KIM, Jae-cheol Lee, I-hun Song, Young-soo Park, Chang-jung Kim, Jae-chul Park
  • Publication number: 20120257770
    Abstract: A method and apparatus to supply a power voltage to a mobile device in a variable manner in order to provide high output power and a high quality sound environment and a mobile device using the same. The apparatus includes a volume control unit to detect installation of an external power supply and to generate a voltage control value corresponding to a current volume level, and a DC-DC converter unit to convert a voltage of an internal power supply in a variable manner on the basis of the voltage control value generated in the volume control unit in order to drive the switching power amplifier.
    Type: Application
    Filed: May 16, 2012
    Publication date: October 11, 2012
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Jae-cheol LEE, Hae-kwang Park
  • Publication number: 20120231856
    Abstract: Methods and apparatuses for controlling wireless charging of the mobile terminal are provided. A method of controlling wireless charging of a mobile terminal may include: finding devices in a vicinity of the mobile terminal; if a wireless charging device is not found, comparing a previous charging environment with the found devices to determine whether a current state of the mobile terminal is in an environment where wireless charging can be performed; otherwise, if at least one wireless charging device is found, selecting a wireless charging device having a more optimal connection state from among the wireless charging device found; and outputting a result of the determining or the selecting to a user through the mobile terminal.
    Type: Application
    Filed: November 21, 2011
    Publication date: September 13, 2012
    Inventors: Jae-cheol LEE, Sang-dok Mo, Un-kyu Park
  • Patent number: 8253134
    Abstract: An oxide thin film transistor and a method of manufacturing the oxide TFT are provided. The oxide thin film transistor (TFT) including: a gate; a channel formed to correspond to the gate, and a capping layer having a higher work function than the channel; a gate insulator disposed between the gate and the channel; and a source and drain respectively contacting either side of the capping layer and the channel and partially on a top surface of the capping layer.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-il Kim, Jae-cheol Lee, I-hun Song, Young-soo Park, Chang-jung Kim, Jae-chul Park
  • Patent number: 8224399
    Abstract: A method and apparatus to supply a power voltage to a mobile device in a variable manner in order to provide high output power and a high quality sound environment and a mobile device using the same. The apparatus includes a volume control unit to detect installation of an external power supply and to generate a voltage control value corresponding to a current volume level, and a DC-DC converter unit to convert a voltage of an internal power supply in a variable manner on the basis of the voltage control value generated in the volume control unit in order to drive the switching power amplifier.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: July 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-cheol Lee, Hae-kwang Park
  • Patent number: 7988257
    Abstract: An ink cartridge to prevent image degradation due to a misalignment of nozzles in a transfer direction of a printing medium and a transverse direction includes a print head substrate, a first head unit including at least one first print head chip which is disposed on the print head substrate and includes a plurality of first nozzles arranged in plural lines in a second direction perpendicular to a first direction which is a transfer direction of a printing medium, thereby forming a first line in the second direction, and a second head unit including at least one second print head chip which is disposed on the print head substrate and which has an ink jetting area overlapping a predetermined area of the first line, thereby forming an overlapping area, and which includes a plurality of second nozzles arranged in plural lines in the second direction, thereby forming a second line spaced from the first line, and dots formed by the first and the second nozzles, which neighbor each other in the overlapping area whe
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-song Jung, Chang-shin Park, Tae-kyun Kim, Jae-cheol Lee, Dong-hwan Kim
  • Publication number: 20110133176
    Abstract: Transistors and electronic apparatuses including the same are provided, the transistors include a channel layer on a substrate. The channel layer includes a zinc (Zn)-containing oxide. The transistors include a source and a drain, respectively, contacting opposing ends of the channel layer, a gate corresponding to the channel layer, and a gate insulating layer insulating the channel layer from the gate. The channel layer has a first surface adjacent to the substrate, a second surface facing the first surface, and a channel layer-protection portion on the second surface. The channel layer-protection portion includes a fluoride material.
    Type: Application
    Filed: September 1, 2010
    Publication date: June 9, 2011
    Applicants: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Jae-cheol Lee, Chang-seung Lee, Jae-gwan Chung, Eun-ha Lee, Anass Benayad, Sang-wook Kim, Se-jung Oh
  • Publication number: 20110127518
    Abstract: Provided are a transistor, a method of manufacturing the transistor, and an electronic device including the transistor. The transistor may include a passivation layer on a channel layer, a source, a drain, and a gate, wherein the component of the passivation layer is varied in a height direction. The passivation layer may have a multi-layer structure including a silicon oxide layer, a silicon oxynitride layer, and a silicon nitride layer sequentially stacked. The channel layer may include an oxide semiconductor.
    Type: Application
    Filed: July 28, 2010
    Publication date: June 2, 2011
    Inventors: Ji-sim Jung, Chang-seung Lee, Jae-cheol Lee, Sang-yoon Lee, Jang-yeon Kwon, Kwang-hee Lee, Kyoung-seok Son
  • Publication number: 20100279066
    Abstract: Disclosed herein is a nanostructured thin film. The nanostructured thin film comprises a nanoparticle layer and a number of micro-undulated surfaces formed on the nanoparticle layer. The two micro-undulated structures of the nanostructured thin film are uniformly introduced over a large area. This configuration makes it easy to control the surface properties of the nanostructured thin film. Therefore, the nanostructured thin film can be widely applied to a variety of devices. Also disclosed herein is a method for controlling the surface properties of the nanostructured thin film.
    Type: Application
    Filed: September 25, 2008
    Publication date: November 4, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Xavier BULLIARD, Anass BENAYAD, Jong Jin PARK, Jae Cheol LEE, Yun Hyuk CHOI
  • Patent number: 7792310
    Abstract: A method and apparatus for automatically determining a characteristic of a speaker and automatically setting a speaker mode in an audio/video system. The method includes: detecting a current for operating the speaker by inputting a predetermined signal; measuring an impedance characteristic of the speaker in accordance with a frequency change based on the detected current; determining a speaker type based on the measured impedance characteristic; and setting a speaker mode based on an impedance characteristic curve of the discriminated speaker type.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: September 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-cheol Lee, Hae-kwang Park, Jong-bae Kim
  • Patent number: 7710843
    Abstract: The present invention relates to a method and apparatus for finalizing a dual layer disc medium. The present invention checks whether particular areas on each recording layer of a dual layer recording medium separated from each other, e.g., the innermost circumference of data zone and around an area of radius 4 cm, are unrecorded and records null data in a particular area found to be unrecorded and carries out finalization. The present invention has an advantage in that time needed for finalization is considerably reduced compared with a traditional procedure of recording null data throughout the entire unrecorded data section.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: May 4, 2010
    Assignee: LG Electronics Inc.
    Inventor: Jae Cheol Lee
  • Patent number: 7681968
    Abstract: An ink level detecting apparatus usable with an ink-jet printer includes an ink tank having a bottom, a ceiling, and a sidewall, a shrinkable ink pack is accommodated in the ink tank and having a top surface that moves down evenly as an ink level in the shrinkable ink pack decreases, a fixed electrode installed to an upper portion of the ink tank, and a movable electrode disposed to face the fixed electrode at a predetermined distance from the fixed electrode. The movable electrode moves in a horizontal direction according to a height variation of the top surface of the shrinkable ink pack such that an overlap area between the movable electrode and the fixed electrode varies. Therefore, the ink level is detected from electric capacity variation sensed between the fixed electrode and the movable electrode.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: March 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-kee Jung, Jae-cheol Lee