Patents by Inventor Hyun-Tae Hwang
Hyun-Tae 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: 20240143940Abstract: The present invention relates to a context-based QA generation architecture, and an object of the present invention is to generate diverse QA pairs from a single context. To achieve the object, the present invention includes a latent variable generating network including at least one encoder and an artificial neural network (Multi-Layer Perceptron: MLP) and configured to train the artificial neural network using a first context, a first question, and a first answer, and generate a second question latent variable and a second answer latent variable by applying the trained artificial neural network to a second context, an answer generating network configured to generate a second answer by decoding the second answer latent variable, and a question generating network configured to generate a second question based on a second context and the second answer.Type: ApplicationFiled: December 18, 2023Publication date: May 2, 2024Inventors: Dong Hwan KIM, Sung Ju HWANG, Seanie LEE, Dong Bok LEE, Woo Tae JEONG, Han Su KIM, You Kyung KWON, Hyun Ok KIM
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Patent number: 11955124Abstract: An example electronic device includes a housing; a touchscreen display; a microphone; at least one speaker; a button disposed on a portion of the housing or set to be displayed on the touchscreen display; a wireless communication circuit; a processor; and a memory. When a user interface is not displayed on the touchscreen display, the electronic device enables a user to receive a user input through the button, receives user speech through the microphone, and then provides data on the user speech to an external server. An instruction for performing a task is received from the server. When the user interface is displayed on the touchscreen display, the electronic device enables the user to receive the user input through the button, receives user speech through the microphone, and then provides data on the user speech to the external server.Type: GrantFiled: January 10, 2022Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Ki Kang, Jang-Seok Seo, Kook-Tae Choi, Hyun-Woo Kang, Jin-Yeol Kim, Chae-Hwan Li, Kyung-Tae Kim, Dong-Ho Jang, Min-Kyung Hwang
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Publication number: 20230271828Abstract: A solid state formulation adapted for hydrogen generation includes a mixture of sodium borohydride and a water storage agent that is stable below about 60° C. but adapted to release water upon heating to a temperature between about 80° C. and about 300° C. A method for generating hydrogen by heating that solid state formulation is also provided.Type: ApplicationFiled: August 25, 2021Publication date: August 31, 2023Inventors: Hyun-Tae Hwang, Geo-Jong Kim
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Patent number: 10197789Abstract: Provided is a smart pixel blind having aesthetics that may be felt by a user by including a plurality of pixels disposed in a two-dimensional array. In the smart pixel blind, driving devices are provided in the respective pixels, and when the user inputs a predetermined shape using a portable terminal, or the like, a main controller receives the input shape and controls the driving devices provided in the respective pixels to allow the input shape to be displayed.Type: GrantFiled: February 21, 2017Date of Patent: February 5, 2019Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Soo-Hong Lee, Dae-Eun Kim, Jeonggyu Lee, Min Hyuk Woo, Hyun-Tae Hwang, Sungeun Lee, Sunghoon Lee, Sangki Kim, Heungryong Jee, Hojoon Son, Hyebin Kim
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Patent number: 10105744Abstract: The invention discloses a press die for electrically assisted manufacturing performing plastic working at a relatively lower temperature than hot working by using an electroplasticity effect that a flow stress inside a material is reduced when a current is applied to the material, the press die for electrically assisted manufacturing including: an upper die and a lower die configured to be disposed at upper and lower portions, having the material disposed therebetween; and at least one electrode pair configured to be disposed in the upper die or the lower die, wherein the electrode pair is configured so that electrodes having different polarities in a width direction of the material face each other.Type: GrantFiled: May 26, 2014Date of Patent: October 23, 2018Assignees: MS AUTOTECH CO., LTD, ULSAN TECHNOPARKInventors: Jang-Soo Kim, Dae-Ho Yang, Hong-Kyo Jin, Kyung-Sik Kim, Dong-Keun Kweon, Sang-Woo So, Hyun-Tae Hwang
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Publication number: 20180143424Abstract: Provided is a smart pixel blind having aesthetics that may be felt by a user by including a plurality of pixels disposed in a two-dimensional array. In the smart pixel blind, driving devices are provided in the respective pixels, and when the user inputs a predetermined shape using a portable terminal, or the like, a main controller receives the input shape and controls the driving devices provided in the respective pixels to allow the input shape to be displayed.Type: ApplicationFiled: February 21, 2017Publication date: May 24, 2018Inventors: Soo-Hong LEE, Dae-Eun KIM, Jeonggyu LEE, Min Hyuk WOO, Hyun-Tae HWANG, Sungeun LEE, Sunghoon LEE, Sangki KIM, Heungryong JEE, Hojoon SON, Hyebin KIM
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Patent number: 9975768Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: GrantFiled: August 4, 2016Date of Patent: May 22, 2018Assignee: Purdue Research FoundationInventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
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Patent number: 9610565Abstract: A method for making a metal oxide material and catalyzing the oxidative coupling of methane, including mixing a metal cation-containing oxidizer portion and a reducing fuel portion with water to define an aqueous solution, evaporatively removing water from the aqueous solution to yield a concentrated liquid, burning the concentrated liquid yield an homogeneous metal oxide powder, flowing methane from a first source and oxygen from a second source over the homogeneous metal oxide powder, and catalyzing an oxidative coupling of methane reaction with the homogeneous metal oxide powder. The homogeneous metal oxide powder contains metal oxides selected from the group including LaSrAlO4, LaAlO3, Sr3Al2O6, Na2WO4—Mn/SiO2, and combinations thereof.Type: GrantFiled: August 20, 2013Date of Patent: April 4, 2017Assignee: Purdue Research FoundationInventors: Ranjita Ghose, Hyun Tae Hwang, Arvind Varma
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Publication number: 20160340188Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: ApplicationFiled: August 4, 2016Publication date: November 24, 2016Inventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
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Patent number: 9493349Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: GrantFiled: September 2, 2012Date of Patent: November 15, 2016Assignee: Purdue Research FoundationInventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
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Publication number: 20150183019Abstract: The invention discloses a press die for electrically assisted manufacturing performing plastic working at a relatively lower temperature than hot working by using an electroplasticity effect that a flow stress inside a material is reduced when a current is applied to the material, the press die for electrically assisted manufacturing comprising: an upper die and a lower die configured to be disposed at upper and lower portions, having the material disposed therebetween; and at least one electrode pair configured to be disposed in the upper die or the lower die, wherein the electrode pair is configured so that electrodes having different polarities in a width direction of the material face each other.Type: ApplicationFiled: May 26, 2014Publication date: July 2, 2015Applicants: ULSAN TECHNOPARK, MS AUTOTECH CO., LTDInventors: Jang-Soo KIM, Dae-Ho YANG, Hong-Kyo JIN, Kyung-Sik KIM, Dong-Keun KWEON, Sang-Woo SO, Hyun-Tae HWANG
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Publication number: 20150010835Abstract: A system for generating and purifying hydrogen. To generate hydrogen, the system includes inlets configured to receive a hydrogen carrier and an inert insulator, a mixing chamber configured to combine the hydrogen carrier and the inert insulator, a heat exchanger configured to apply heat to the mixture of hydrogen carrier and the inert insulator, wherein the applied heat results in the generation of hydrogen from the hydrogen carrier, and an outlet configured to release the generated hydrogen. To purify hydrogen, the system includes a primary inlet to receive a starting material and an ammonia filtration subassembly, which may include an absorption column configured to absorb the ammonia into water for providing purified hydrogen at a first purity level. The ammonia filtration subassembly may also include an adsorbent member configured to adsorb ammonia from the starting material into an adsorbent for providing purified hydrogen at a second purity level.Type: ApplicationFiled: September 2, 2012Publication date: January 8, 2015Applicant: Purdue Research FoundationInventors: Arvind Varma, Hyun Tae Hwang, Ahmad Al-Kukhun
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Publication number: 20140080699Abstract: A method for making a metal oxide material and catalyzing the oxidative coupling of methane, including mixing a metal cation-containing oxidizer portion and a reducing fuel portion with water to define an aqueous solution, evaporatively removing water from the aqueous solution to yield a concentrated liquid, burning the concentrated liquid yield an homogeneous metal oxide powder, flowing methane from a first source and oxygen from a second source over the homogeneous metal oxide powder, and catalyzing an oxidative coupling of methane reaction with the homogeneous metal oxide powder. The homogeneous metal oxide powder contains metal oxides selected from the group including LaSrAlO4, LaAlO3, Sr3Al2O6, Na2WO4—Mn/SiO2, and combinations thereof.Type: ApplicationFiled: August 20, 2013Publication date: March 20, 2014Inventors: Ranjita Ghose, Hyun Tae Hwang, Arvind Varma
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Patent number: 8377416Abstract: A method of releasing hydrogen from ammonia borane is disclosed. The method comprises heating an aqueous ammonia borane solution to between about 80-135° C. at between about 14.7 and 200 pounds per square inch absolute (psia) to release hydrogen by hydrothermolysis.Type: GrantFiled: August 20, 2009Date of Patent: February 19, 2013Assignee: Purdue Research FoundationInventors: Arvind Varma, Moiz Diwan, Evgeny Shafirovich, Hyun-Tae Hwang, Ahmad Al-Kukhun