Patents by Inventor Won-Yong Choi
Won-Yong 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: 20240147677Abstract: A lower module of a power electronic device includes a lower module included in a power electronic device that is divided into an upper module and a lower module by an intermediate plate and comprises a blower fan to introduce air into the inner space of the lower module; a plurality of capacitors installed in a suspended form on the intermediate plate and spaced apart from the blower fan; a heat sink having a plurality of heat dissipation fins through which heat generated from a heating component disposed on the upper module is conducted, and disposed adjacent to the capacitors to cool the plurality of heat dissipation fins by air moved from the plurality of capacitors; a DC reactor cooled by the air moved from the heat dissipation fins; and a discharge plate having a vent hole to discharge the air moved from the DC reactor to the outside.Type: ApplicationFiled: December 3, 2021Publication date: May 2, 2024Inventors: Soo Yong HWANG, Kil Ju JUNG, Su Hyeong LEE, Won Suk CHOI, Kyu Hwa KIM
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Patent number: 11970566Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.Type: GrantFiled: September 30, 2022Date of Patent: April 30, 2024Assignees: HYUNDAI TRANSYS INC., CHIN YANG CO., LTD.Inventors: Jae Yong Ko, Seung Keon Woo, Young Tae Cho, Won Sug Choi, Sung Yoon Lee, Jae Kwang Lee, Jun Ho Song
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Patent number: 9354840Abstract: An automatic detection method of an arrangement of a video wall including a plurality of monitors and a video wall system are provided. The method includes: calling, by a control computer, identification information of a first monitor of the plurality of monitors; sending, by the first monitor, a response signal to the control computer and sending, by a second monitor which does not correspond to the called identification information, a detecting signal including a received direction of the response signal to the control computer; and receiving, by the control computer, the detecting signal, and determining the arrangement of the plurality of monitors according to the received detecting signal.Type: GrantFiled: December 11, 2012Date of Patent: May 31, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-ryeol Seo, Young-kook Kim, Hyun-ah Kim, Ji-eun Park, Jin-Ho Son, Seung-hun Lee, Ki-seok Choi, Won-yong Choi, Yun-suk Choi
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Patent number: 9074749Abstract: A display apparatus is provided. The display apparatus includes a transparent display panel, a reflector disposed in the display apparatus and configured to reflect light and provide the reflected light to the transparent display panel, a light emitter configured to emit the light and project the emitted light to the reflector, and a control circuit configured to control the transparent display panel and the light emitter.Type: GrantFiled: March 18, 2013Date of Patent: July 7, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-ryeol Seo, Young-kook Kim, Hyun-ah Kim, Ji-eun Park, Jin-ho Son, Seung-hun Lee, Ki-seok Choi, Won-yong Choi, Yun-suk Choi
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Publication number: 20140324623Abstract: A display apparatus includes display unit; a processing unit configured to extract an object included in the input image and generate object information based on the extracted object; a communication unit configured to communicate with an external server via a network; and a controller configured to control the communication unit to transmit the object information to the server receive recommendation information generated by an analysis of the object information from the server.Type: ApplicationFiled: October 21, 2013Publication date: October 30, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-yong CHOI, Byoung-joo KIM, Jong-pil JUNG, Gae-youn KIM, Ho-keun SONG
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Publication number: 20130314923Abstract: A display apparatus is provided. The display apparatus includes a transparent display panel, a reflector disposed in the display apparatus and configured to reflect light and provide the reflected light to the transparent display panel, a light emitter configured to emit the light and project the emitted light to the reflector, and a control circuit configured to control the transparent display panel and the light emitter.Type: ApplicationFiled: March 18, 2013Publication date: November 28, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-ryeol SEO, Young-kook KIM, Hyun-ah KIM, Ji-eun PARK, Jin-ho SON, Seung-hun LEE, Ki-seok CHOI, Won-yong CHOI, Yun-suk CHOI
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Publication number: 20130293443Abstract: An automatic detection method of an arrangement of a video wall including a plurality of monitors and a video wall system are provided. The method includes: calling, by a control computer, identification information of a first monitor of the plurality of monitors; sending, by the first monitor, a response signal to the control computer and sending, by a second monitor which does not correspond to the called identification information, a detecting signal including a received direction of the response signal to the control computer; and receiving, by the control computer, the detecting signal, and determining the arrangement of the plurality of monitors according to the received detecting signal.Type: ApplicationFiled: December 11, 2012Publication date: November 7, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jeong-ryeol SEO, Young-kook KIM, Hyun-ah KIM, Ji-eun PARK, Jin-Ho SON, Seung-hun LEE, Ki-seok CHOI, Won-yong CHOI, Yun-suk CHOI
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Publication number: 20130293495Abstract: A method for touch input and a touch display device using the same are provided. The method for touch input includes: if a touch of an object with respect to the touch display device is detected, determining a contact area of the object touching on the touch display device; determining an input function corresponding to the contact area of the object; and if a touch input by the object is received, executing an input operation based on the determined input function corresponding to the contact area of the object. Accordingly, the user may execute a variety of input operations based on various input functions, by touch inputs using a variety of objects, without having to display an input function change menu.Type: ApplicationFiled: April 30, 2013Publication date: November 7, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-yong CHOI, Yong-ku KIM
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Publication number: 20130009932Abstract: An image display apparatus includes: an interface unit which receives an image signal; a main controller which performs a control operation for processing the image signal in a normal mode state; a sub-controller which performs a control operation for providing a low power service in a power saving mode state; and a switch unit which connects the interface unit to the main controller in the normal mode state and is switched in the power saving mode state to connect the interface unit to the sub-controller.Type: ApplicationFiled: June 18, 2012Publication date: January 10, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-yong CHOI, Hong-chul LEE, Ki-hun OH, Young-gon CHO
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Patent number: 7935329Abstract: The present invention relates to a titania sol, a method of preparing the same, and a coating composition including the same. More specifically, it relates to a titania sol prepared by elevating the temperature of a reactant solution including a precursor of titania in a solvent for a reaction temperature, adding an acid catalyst to the reactant solution and conducting a sol-gel reaction while removing the solvent for reaction therefrom, and drying the prepared titania sol and re-dispersing the dried titania in a solvent for dispersion, a method of preparing the same, and a coating composition including the same.Type: GrantFiled: November 30, 2006Date of Patent: May 3, 2011Assignee: LG Chem, Ltd.Inventors: Sang-Hyuk Im, Seung-Heon Lee, Young-Jun Hong, Won-Yong Choi
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Publication number: 20080129678Abstract: A user terminal, an image display device, and a method for adjusting a light source thereof, are provided. A user terminal is connected with an image display device and comprises a first interface unit which receives a color coordinate of an ambient light; a second interface unit which receives a color coordinate of an internal light source of the image display device; and a control unit which calculates a luminance value from the received color coordinate of the ambient light and the received color coordinate of the internal light source, and transmits the calculated luminance value to the image display device via the second interface unit. The image display device adjusts the internal light source of the image display device based on the calculated luminance value. Thus, the light source of a backlight unit can be adjusted based on the ambient light.Type: ApplicationFiled: July 30, 2007Publication date: June 5, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-yong Choi, Young-kook Kim, Tae-jin Kim
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Publication number: 20070151482Abstract: The present invention relates to a titania sol, a method of preparing the same, and a coating composition including the same. More specifically, it relates to a titania sol prepared by elevating the temperature of a reactant solution including a precursor of titania in a solvent for a reaction temperature, adding an acid catalyst to the reactant solution and conducting a sol-gel reaction while removing the solvent for reaction therefrom, and drying the prepared titania sol and re-dispersing the dried titania in a solvent for dispersion, a method of preparing the same, and a coating composition including the same.Type: ApplicationFiled: November 30, 2006Publication date: July 5, 2007Inventors: Sang-Hyuk Im, Seung-Heon Lee, Young-Jun Hong, Won-Yong Choi
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Patent number: 6967599Abstract: Audio data decoded in an MPEG system to be stored in a storage unit is supplied to an audio output via a filtering processing. For performing the filtering processing, presentation time interval of respective audio data is changed to conform to a user's designated playback speed, and the decoded audio data stored in the storage unit by being synchronized with the changed presentation time interval is written on an input queue in the set unit. A TSM algorithm is performed in the frame unit with respect to the audio data of the input queue to decrease the quantity of the audio data when the designated playback speed is faster than a normal playback speed or to increase it when the designated playback speed is slower than the normal playback speed, in accordance with a value of the designated playback speed. The TSM audio data is transferred to a middle queue.Type: GrantFiled: May 30, 2001Date of Patent: November 22, 2005Assignee: Cosmotan Inc.Inventors: Won-Yong Choi, Byoung-Chul Lee, Sang-Hun Jeong, Won-Sik Choi
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Patent number: 6559373Abstract: The present invention relates to a solar powered cathodic protection system using a photocatalyst which functions as a non-sacrificial photoanode under sunlight, wherein said non-sacrificial photoanode consisting of the photocatalyst such as TiO2 (or ZnO) and an electrolyte, is galvanically connected to a metal structure to be protected and continuously provides electrons to the metal structure, whereby the metal structure is protected from the corrosion. The solar powered cathodic protection system using a non-sacrificial photoanode according to present invention is advantageous in that 1) an external power supply is not necessary, 2) it is easy to maintain the system because the non-sacrificial photoanode according to the present invention can be installed outdoors, and 3) the photocatalyst used as the non-sacrificial photoanode is inexpensive and semipermanent.Type: GrantFiled: October 12, 2001Date of Patent: May 6, 2003Assignee: Envitech, Inc.Inventors: Won Yong Choi, Kyoo Young Kim, Hyun Woong Park
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Publication number: 20020101368Abstract: Audio data decoded in an MPEG system to be stored in a storage unit is supplied to an audio output via a filtering processing. For performing the filtering processing, presentation time interval of respective audio data is changed to conform to a user's designated playback speed, and the decoded audio data stored in the storage unit by being synchronized with the changed presentation time interval is written on an input queue in the set unit. A TSM algorithm is performed in the frame unit with respect to the audio data of the input queue to decrease the quantity of the audio data when the designated playback speed is faster than a normal playback speed or to increase it when the designated playback speed is slower than the normal playback speed, in accordance with a value of the designated playback speed. The TSM audio data is transferred to a middle queue.Type: ApplicationFiled: May 30, 2001Publication date: August 1, 2002Applicant: Cosmotan Inc.Inventors: Won-Yong Choi, Byoung-Chul Lee, Sang-Hun Jeong, Won-Sik Choi
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Publication number: 20020062857Abstract: The present invention relates to a solar powered cathodic protection system using a photocatalyst which functions as a non-sacrificial photoanode under sunlight, wherein said non-sacrificial photoanode consisting of the photocatalyst such as TiO2 (or ZnO) and an electrolyte, is galvanically connected to a metal structure to be protected and continuously provides electrons to the metal structure, whereby the metal structure is protected from the corrosion. The solar powered cathodic protection system using a non-sacrificial photoanode according to present invention is advantageous in that 1) an external power supply is not necessary, 2) it is easy to maintain the system because the non-sacrificial photoanode according to the present invention can be installed outdoors, and 3) the photocatalyst used as the non-sacrificial photoanode is inexpensive and semipermanent.Type: ApplicationFiled: October 12, 2001Publication date: May 30, 2002Inventors: Won Yong Choi, Kyoo Young Kim, Hyun Woong Park
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Patent number: D510333Type: GrantFiled: October 28, 2004Date of Patent: October 4, 2005Assignee: Motorola, Inc.Inventors: Franco Lodato, Donald W. Burnette, Julio C. Castaneda, Won-Yong Choi, Dave H. Karl, Carsten W. Astheimer, Minh Chi Nguyen