Patents by Inventor Sung-hwan Choi
Sung-hwan Choi 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: 20120187407Abstract: Disclosed are a thin film transistor and a method of manufacturing the thin film transistor. An electrode layer of the thin film transistor includes a seed layer formed of a transparent conductive material doped with indium gallium zinc oxide (IGZO) and a main layer formed of a transparent conductive material. The thin film transistor includes a substrate, a gate electrode on the substrate, a gate insulation film on the substrate to cover the gate electrode, a semiconductor layer disposed on the gate insulation film in a region corresponding to the gate electrode, an electrode layer having a double layer structure and disposed on the gate insulation film in a manner such that a topside portion of the semiconductor layer is exposed through the electrode layer, and a passivation layer on the gate insulation film to cover the semiconductor layer and the electrode layer.Type: ApplicationFiled: February 10, 2011Publication date: July 26, 2012Applicant: SNU R&DB FOUNDATIONInventors: Sung Hwan Choi, Min Koo Han
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Patent number: 8228610Abstract: A lens injection mold includes an upper mold and a lower mold, a cavity provided in the upper mold or the lower mold and having a shape corresponding to the rib portion having the concave portions in order to form the rib portion, and an upper core and a lower core disposed to be movable inside the upper mold and the lower mold and having an upper tip portion and a lower tip portion, respectively, the tip portions having a shape corresponding to the effective aperture portion such that the effective aperture portion is created by pressing injection liquid.Type: GrantFiled: January 27, 2011Date of Patent: July 24, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jin Wook Na, Young Ro Jeon, Sun Ok Kim, Sung Hwan Choi
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Patent number: 8200667Abstract: A method of and apparatus for constructing a user profile using a content tag, a method of recommending digital content by using a user profile including a tag included in the digital content and a preference value for the tag. According to the methods and apparatus, a user profile is generated by using a content tag, and thus the taste of the user according to digital content consumption can be expressed in more varied ways. Also, by suggesting a method of generating a tag from web content, construction of a user profile for digital content having no tag is enabled. Furthermore, a tag extracted from digital content used by a user is included in a profile and it can be used for a variety of purposes, such as expansion of a comparison scope, use of preference keywords, providing of content links, and expansion of search scope.Type: GrantFiled: July 9, 2008Date of Patent: June 12, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Yun-ju Choe, Cheol-ju Hwang, Min-ho Lee, Sung-hwan Choi, Won-dong Yun, Soo-hong Park, Jeong-rok Jang, Sang-wook Cho
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Publication number: 20120018721Abstract: A thin film transistor, which has a first passivation layer and a second passivation layer to maintain high reliability while preventing hydrogen from being induced to a semiconductor layer, and a method for fabricating the thin film transistor are provided. The method includes providing a substrate including an insulation substrate, forming a gate electrode on the substrate, forming a gate insulation layer on the substrate and the gate electrode, forming a semiconductor layer on the gate insulation layer, forming source/drain electrodes on the semiconductor layer to expose a portion of a top portion of the semiconductor layer, forming a first passivation layer to cover exposed top portions of the gate insulation layer, the semiconductor layer and the source/drain electrodes, and forming a second passivation layer on the first passivation layer, wherein the forming of the second passivation layer comprises performing deposition at a higher temperature than the forming of the first passivation layer.Type: ApplicationFiled: July 13, 2011Publication date: January 26, 2012Applicant: SNU R&DB FOUNDATIONInventors: Sung Hwan Choi, Min Koo Han
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Publication number: 20110318580Abstract: There is provided an adhesive tape for manufacturing electronic components comprising a heat-resistant substrate and an adhesive layer containing an adhesive composition disposed on the heat-resistant substrate, wherein the adhesive composition comprises a phenoxy resin, a curing agent, an energy ray curable acrylic resin and a photoinitiator, and wherein the adhesive layer is cured by heat and an energy ray.Type: ApplicationFiled: March 9, 2009Publication date: December 29, 2011Inventors: Sung-Hwan Choi, Ki-Jeong Moon, Hae-Sang Jeon, Chang-Hoon Sim
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Patent number: 8069010Abstract: A method and apparatus for predicting content preferences of an active user with reference to content preferences of other users that are similar to those of the active user, the method including: measuring similarity ratios of the active user and other users using an overlapping ratio of use of content items commonly used between the active user and the respective other users; generating a recommender list for the active user based on the measured similarity ratios; and predicting a preference rating of the first user with respect to an unused content item based on a preference rating of an other user included in the recommender list with respect to the unused content item. Accordingly, the similarity ratio between the users can be accurately measured so that reliability of a preference rating prediction system can be increased.Type: GrantFiled: July 16, 2008Date of Patent: November 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-hwan Choi, Cheol-ju Hwang, Jae-hwang Lee, Jeong-rok Jang, Yun-ju Choe, Do-yeon Kim
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Publication number: 20110205642Abstract: There is provided a plastic lens, a lens module and a lens injection mold. The plastic lens includes an effective aperture portion being an optical surface of the lens and a rib portion being a circumferential portion of the lens. The effective aperture portion and the rib portion are shaped in concentric circles having the same central axis. The rib portion includes three or more concave portions in an outer circumferential portion thereof, the concave portions being positioned to be symmetrical with respect to the central axis. The plastic lens is designed to be symmetrical with respect to a concentric axis so that it may avoid asymmetric contraction inside a barrel. Also, since the concave portions, when assembled in the barrel, do not contact an inner circumferential surface of the barrel, press-fitting force in the assembly thereof is reduced so that deformation caused by excessive press-fitting force applied thereto may be avoided.Type: ApplicationFiled: January 27, 2011Publication date: August 25, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Wook Na, Young Ro Jeon, Sun Ok Kim, Sung Hwan Choi
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Publication number: 20110056623Abstract: This disclosure provides a method for laminating an adhesive tape and a lead frame, more specifically to reduce the warpage of a lead frame after heated lamination in which an adhesive tape for manufacturing semiconductor devices is attached to the lead frame, satisfying all the properties required for lamination, and avoiding adhesive residues from adhesive tapes and the leakage of a sealing resin. A method for laminating an adhesive tape and a lead frame comprises laminating an adhesive tape and a lead, wherein the lamination temperature of an adhesive tape surface and that of a lead frame surface are different from each other, for example, wherein the lamination temperature of the lead frame surface is lower than that of the adhesive tape surface by about 1 to about 200° C.Type: ApplicationFiled: November 10, 2009Publication date: March 10, 2011Applicant: Toray Saehan, Inc.Inventors: Min-Ho IM, Sung-Hwan Choi, Chang-Hoon Sim, Ki-Jeong Moon, Hae-Sang Jeon
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Publication number: 20100330278Abstract: There is provided a method for treating a surface of a substrate, comprising forming a layer, such as a mixed self-assembled monolayer (SAM), on the surface via chemical vapor deposition (CVD) with a CF3-functionalized organic silane and a CH3-functionalized organic silane, wherein the length of a carbon chain of the CH3-functional organic silane is shorter than a carbon chain of the CF3-functionalized organic silane.Type: ApplicationFiled: August 24, 2010Publication date: December 30, 2010Inventors: Sung-Hwan Choi, Ki-Jeong Moon, Hae-Sang Jeon
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Patent number: 7697161Abstract: A method of displaying wallpaper and an apparatus for displaying wallpaper includes displaying an input image to be displayed on wallpaper as a background image and a wallpaper displaying frame containing the entire image or a part of the input image on a wallpaper setting window, modifying a wallpaper displaying frame area according to a user's instruction, and displaying the modified frame area on the wallpaper. The apparatus for displaying wallpaper includes an application unit that displays an input image to be inputted as a background image for wallpaper and a wallpaper displaying frame containing the entire input image or a part of the input image on a wallpaper setting window, a modification unit that modifies a wallpaper displaying frame area specified by the application unit according to a user's instruction, and a wallpaper displaying unit that displays the frame area modified by the modification unit on the wallpaper.Type: GrantFiled: July 24, 2006Date of Patent: April 13, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Sung-hwan Choi
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Publication number: 20090193015Abstract: A method of adaptively updating a first recommended user group list of a first user connected to a network, in which a predetermined number of second users are selected from the first recommend user group list that is a list of users having a high similarity to the first user in consuming contents. A predetermined number of third users having a high similarity to the first user is selected from second recommend user group lists respectively of the selected second users possess. The first recommend user group list is updated to include the selected third users. As the preference of a user changes, the recommend user group may be reconfigured with updated recommend users by reflecting a corresponding preference. Also, quality contents can be provided by recommending a user of a corresponding terminal with the contents preferred by other users in the updated recommend user group list.Type: ApplicationFiled: January 6, 2009Publication date: July 30, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Jeong-rok Jang, Cheol-ju Hwang, Jae-hwang Lee, Min-ho Lee, Sung-hwan Choi, Sang-Wook Cho, Yun-ju Choe
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Publication number: 20090150120Abstract: A method and apparatus for predicting content preferences of an active user with reference to content preferences of other users that are similar to those of the active user, the method including: measuring similarity ratios of the active user and other users using an overlapping ratio of use of content items commonly used between the active user and the respective other users; generating a recommender list for the active user based on the measured similarity ratios; and predicting a preference rating of the first user with respect to an unused content item based on a preference rating of an other user included in the recommender list with respect to the unused content item. Accordingly, the similarity ratio between the users can be accurately measured so that reliability of a preference rating prediction system can be increased.Type: ApplicationFiled: July 16, 2008Publication date: June 11, 2009Inventors: Sung-hwan CHOI, Cheol-ju Hwang, Jae-hwang Lee, Jeong-rok Jang, Yun-ju Choe, Do-Yeon Kim
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Publication number: 20090063506Abstract: A method and apparatus for generating a recommendation content list by the cooperation of user groups. Sets of content that are classified according to a predetermined criterion are distributed to user terminals within a user terminal group. Assessment information on the content included in the sets of content is collected from the corresponding user terminals, and the recommendation content list is then generated based on the collected assessment information.Type: ApplicationFiled: April 23, 2008Publication date: March 5, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Sang-wook CHO, Cheol-Ju Hwang, Soo-hong Park, Jae-hwang Lee, Min-ho Lee, Sung-hwan Choi, Jeong-rok Jang, Yun-ju Choe
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Publication number: 20090063568Abstract: A method of and apparatus for constructing a user profile using a content tag, a method of recommending digital content by using a user profile including a tag included in the digital content and a preference value for the tag. According to the methods and apparatus, a user profile is generated by using a content tag, and thus the taste of the user according to digital content consumption can be expressed in more varied ways. Also, by suggesting a method of generating a tag from web content, construction of a user profile for digital content having no tag is enabled. Furthermore, a tag extracted from digital content used by a user is included in a profile and it can be used for a variety of purposes, such as expansion of a comparison scope, use of preference keywords, providing of content links, and expansion of search scope.Type: ApplicationFiled: July 9, 2008Publication date: March 5, 2009Applicant: Samsung Electronics Co., Ltd.Inventors: Yun-ju CHOE, Cheol-ju HWANG, Min-ho LEE, Sung-hwan CHOI, Won-dong YUN, Soo-hong PARK, Jeong-rok JANG, Sang-wook CHO
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Publication number: 20090053034Abstract: A wafer transfer system, and method of controlling pressure in the system, includes a loadport for receiving a wafer container, a housing operably connected to the loadport, a wafer transfer mechanism for transferring a wafer between the wafer container and the housing, a wafer container sensor for detecting a presence of the wafer container on the loadport, a variable speed fan disposed in a first portion of the housing, a variable exhaust unit disposed in a second portion of the housing facing the first portion, the variable exhaust unit being capable of varying an exhaust rate of air from the housing, and a controller for variably operating the variable speed fan and the variable exhaust unit in response to a signal from the wafer container sensor.Type: ApplicationFiled: October 17, 2008Publication date: February 26, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Soo-woong Lee, Hyung-seok Choi, Jung-sung Hwang, Sung-hwan Choi
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Patent number: 7438514Abstract: A wafer transfer system, and method of controlling pressure in the system, includes a loadport for receiving a wafer container, a housing operably connected to the loadport, a wafer transfer mechanism for transferring a wafer between the wafer container and the housing, a wafer container sensor for detecting a presence of the wafer container on the loadport, a variable speed fan disposed in a first portion of the housing, a variable exhaust unit disposed in a second portion of the housing facing the first portion, the variable exhaust unit being capable of varying an exhaust rate of air from the housing, and a controller for variably operating the variable speed fan and the variable exhaust unit in response to a signal from the wafer container sensor.Type: GrantFiled: October 14, 2004Date of Patent: October 21, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-woong Lee, Hyung-seok Choi, Jung-sung Hwang, Sung-hwan Choi
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Publication number: 20080046117Abstract: A method of preprocessing content including displaying a content list including content items, determining a required length of time of an interval during which one content item, included in the list, is selected by a user, and performing preprocessing of the one content item so as to prepare to execute the content corresponding to the one content item based on the determined required length of time.Type: ApplicationFiled: January 9, 2007Publication date: February 21, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Min-soo Koo, Sung-hwan Choi
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Publication number: 20070024916Abstract: A method of displaying wallpaper and an apparatus for displaying wallpaper includes displaying an input image to be displayed on wallpaper as a background image and a wallpaper displaying frame containing the entire image or a part of the input image on a wallpaper setting window, modifying a wallpaper displaying frame area according to a user's instruction, and displaying the modified frame area on the wallpaper. The apparatus for displaying wallpaper includes an application unit that displays an input image to be inputted as a background image for wallpaper and a wallpaper displaying frame containing the entire input image or a part of the input image on a wallpaper setting window, a modification unit that modifies a wallpaper displaying frame area specified by the application unit according to a user's instruction, and a wallpaper displaying unit that displays the frame area modified by the modification unit on the wallpaper.Type: ApplicationFiled: July 24, 2006Publication date: February 1, 2007Applicant: Samsung Electronics Co., Ltd.Inventor: Sung-hwan Choi
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Publication number: 20060251411Abstract: A wireless communication terminal having a function of automatically controlling an intensity of radiation of a flash, and a method thereof are disclosed. The wireless communication terminal includes: a camera module for capturing an image of a subject through an auto-focusing function; a controller for outputting a charge control signal corresponding to a focus distance value of a focusing lens that gives the maximum sharpness of an image based on calculation in the camera module, and transferring an activation signal according to an image signal; a power supply for supplying electric power according to the charge control signal to the controller; and a light emitting unit for producing an instantaneous flash of light according to the activation signal from the controller by receiving the electric power from the power supply.Type: ApplicationFiled: April 28, 2006Publication date: November 9, 2006Inventor: Sung-Hwan Choi
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Publication number: 20060125929Abstract: A wireless communication terminal having a function for automatically controlling a flash and a method thereof are disclosed. The wireless communication terminal includes: an image capturing unit for obtaining an image of an object in real-time, converting the obtained image to an electric image signal, and automatically controlling a gain according to brightness of the electric image signal; an input unit for receiving an image capturing signal; a controller for confirming a gain value of an image signal which is automatically controlled in the image capturing unit when the image capturing signal is inputted through the input unit, comparing the confirmed gain value of the image signal with a predetermined threshold value, and generating a control signal according to the comparison signal; and a light emitting unit for emitting light in response to the control signal from the controller.Type: ApplicationFiled: December 13, 2005Publication date: June 15, 2006Inventor: Sung-Hwan Choi