Patents by Inventor Si-hyun Park
Si-hyun Park 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: 11728225Abstract: Disclosed in the present specification are an apparatus and a method capable of quickly verifying a plurality of micro LEDs. An LED verification substrate according to the present specification is a micro LED verification substrate having a plurality of verification chips, wherein each verification chip can comprise: a first contact deposited on the upper side of a lower substrate; a first passivation layer deposited on the upper side of the first contact; a second contact deposited on the upper side of the first passivation layer; a second passivation layer deposited on the upper side of the second contact; a first bump electrically connected to the first contact and protruding above the upper surface of the second passivation layer; and a second bump electrically connected to the second contact and protruding above the upper surface of the second passivation layer.Type: GrantFiled: March 19, 2019Date of Patent: August 15, 2023Assignee: Research Cooperation Foundation of Yeungnam UniversityInventors: Si Hyun Park, Young Woong Lee
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Publication number: 20210028074Abstract: Disclosed in the present specification are an apparatus and a method capable of quickly verifying a plurality of micro LEDs. An LED verification substrate according to the present specification is a micro LED verification substrate having a plurality of verification chips, wherein each verification chip can comprise: a first contact deposited on the upper side of a lower substrate; a first passivation layer deposited on the upper side of the first contact; a second contact deposited on the upper side of the first passivation layer; a second passivation layer deposited on the upper side of the second contact; a first bump electrically connected to the first contact and protruding above the upper surface of the second passivation layer; and a second bump electrically connected to the second contact and protruding above the upper surface of the second passivation layer.Type: ApplicationFiled: March 19, 2019Publication date: January 28, 2021Applicant: Research Cooperation Foundation of Yeungnam UniversityInventors: Si Hyun Park, Young Woong Lee
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Patent number: 9899569Abstract: The present invention provides a patterned substrate for gallium nitride-based light emitting diode, comprising: a patterned substrate having patterns, wherein the plurality of patterns are circle type having diameters (d) and the distances between the centers of the patterns are pitches (p), and the cross sections of the patterns are extruded shapes and have heights (h), and wherein the value of [diameter (d)/pitch (p)] is larger than (2.6)/3, and equal or smaller than 3/3.Type: GrantFiled: October 27, 2015Date of Patent: February 20, 2018Assignee: Research Cooperation Foundation of Yeungnam UniversityInventors: Si Hyun Park, Hao Cui
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Publication number: 20170251093Abstract: A control method of a home appliance, the method including retrieving information about a communication device, authenticating the communication device, registering the authenticated communication device, receiving voice data from the registered communication device, outputting a voice signal corresponding to the received voice data to a user, receiving the voice signal from the user, and transmitting voice data corresponding to the received voice signal to the communication device. When the method is used, even if a user loses a communication device in a home, call is possible using a home appliance such as refrigerator.Type: ApplicationFiled: May 11, 2017Publication date: August 31, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si Hyun PARK, Talipov ELMUROD, Dal Young YU, Hoon KIM, Young Woon KIM, Jae Seok LEE, Jae Seung CHOI
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Patent number: 9680981Abstract: A control method of a home appliance, the method including retrieving information about a communication device, authenticating the communication device, registering the authenticated communication device, receiving voice data from the registered communication device, outputting a voice signal corresponding to the received voice data to a user, receiving the voice signal from the user, and transmitting voice data corresponding to the received voice signal to the communication device. When the method is used, even if a user loses a communication device in a home, call is possible using a home appliance such as refrigerator.Type: GrantFiled: July 25, 2014Date of Patent: June 13, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si Hyun Park, Talipov Elmurod, Dal Young Yu, Hoon Kim, Young Woon Kim, Jae Seok Lee, Jae Seung Choi
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Patent number: 9516635Abstract: An apparatus and method for operating a fast feedback channel in a broadband wireless communication system are provided. The method includes generating and transmitting a feedback signal through a fast feedback channel of a first mode, determining to switch a mode of the fast feedback channel from the first mode to a second mode, transmitting a signal for requesting the mode switching of the fast feedback channel through the fast feedback channel, and generating and transmitting a feedback signal through a fast feedback channel of the second mode.Type: GrantFiled: June 9, 2014Date of Patent: December 6, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Heon Kim, Hwa-Sun You, Hee-Won Kang, Jae-Hee Cho, Si-Hyun Park
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Publication number: 20160315222Abstract: The present invention provides a patterned substrate for gallium nitride-based light emitting diode, comprising: a patterned substrate having patterns, wherein the plurality of patterns are circle type having diameters (d) and the distances between the centers of the patterns are pitches (p), and the cross sections of the patterns are extruded shapes and have heights (h), and wherein the value of [diameter (d)/pitch (p)] is larger than (2.6)/3, and equal or smaller than 3/3.Type: ApplicationFiled: October 27, 2015Publication date: October 27, 2016Applicant: Research Cooperation Foundation of Yeungnam UniversityInventors: Si Hyun Park, Hao Cui
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Patent number: 9107161Abstract: A method for performing timing synchronization error compensation by a base station in a communication system, in which if there is a need for timing synchronization error compensation of a user equipment, the base station generates a message related to the timing synchronization error compensation, and broadcasts the generated message to the user equipment. In this manner, the base station can notify the user equipment of the need for timing synchronization error compensation in the communication system.Type: GrantFiled: October 29, 2010Date of Patent: August 11, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Hyun Park, Hwa-Sun You
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Patent number: 9031006Abstract: A method and apparatus for using a guard band as a data subcarrier in a communication system supporting frequency overlay are provided. In a method of operating mobile station for using a guard band as a subcarrier for signal transmission in a communication system supporting frequency overlay, the method includes searching for a first center frequency located at a position corresponding to an integer multiple of a subcarrier spacing, after searching for the first center frequency, receiving information indicating the numbers n1 and n2 of first additional subcarriers, and performing a first network entry process by using all subcarriers including the first additional subcarriers.Type: GrantFiled: March 9, 2009Date of Patent: May 12, 2015Assignee: Samsung Electronics Co., LtdInventors: Jae-Hee Cho, Kwan-Hee Roh, Si-Hyun Park, Hee-Won Kang, Jae-Weon Cho, Jeong-Ho Park
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Publication number: 20150124445Abstract: There is provided a light emitting box, comprising a main body having an open region in upper part, closed sides and a space in the main body; a light emitting module placed on the bottom of the space of the main body, having a plurality of light emitting units for emitting the light through the open region; a diffusion sheet placed in the upper part, diffusing the light directly or indirectly from the light emitting module; and reflecting plate placed in at least one side of sides, reflecting the light from the light emitting module to the diffusion sheet.Type: ApplicationFiled: October 30, 2014Publication date: May 7, 2015Inventors: Si Hyun PARK, Hao CUI, Won Sik CHOI
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Patent number: 8989312Abstract: A channel estimation method of a channel estimation apparatus in a wireless communication system is provided. The method includes predefining a plurality of weight tables about at least one of a speed and a Carrier to Interference-and-Noise Ratio (CINR) using a correlation value considering offset compensation; selecting a weight table to be used for channel estimation based on at least one of the estimated speed and the CINR, from the plurality of weight tables; and multiplying a pilot channel estimation value and the selected weight table, and performing data channel estimation.Type: GrantFiled: February 15, 2012Date of Patent: March 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Hyun Park, Yon-Woo Yoon, Hwa-Sun You, Hee-Won Kang
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Publication number: 20150038103Abstract: A control method of a home appliance, the method including retrieving information about a communication device, authenticating the communication device, registering the authenticated communication device, receiving voice data from the registered communication device, outputting a voice signal corresponding to the received voice data to a user, receiving the voice signal from the user, and transmitting voice data corresponding to the received voice signal to the communication device. When the method is used, even if a user loses a communication device in a home, call is possible using a home appliance such as refrigerator.Type: ApplicationFiled: July 25, 2014Publication date: February 5, 2015Applicant: Samsung Electronics Co., Ltd.Inventors: Si Hyun Park, Talipov Elmurod, Dal Young Yu, Hoon Kim, Young Woon Kim, Jae Seok Lee, Jae Seung Choi
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Patent number: 8923376Abstract: An apparatus and a method for estimating a Noise and Interference (NI) power in a communication system are provided. The method includes, calculating average values of impulse responses according to ranging codes, through use of a ranging signal sequence received through a resource allocated to a ranging channel, arranging the average values of the impulse responses according to ranging codes in order of the highest value to the lowest value, and multiplying a ranging code, which corresponds to an impulse response having an (x+1)th peak value among the arranged average values of the impulse responses, by a specific threshold value, and estimating the NI power, wherein “x” represents a number of ranging codes which can be simultaneously received by one ranging channel.Type: GrantFiled: January 25, 2011Date of Patent: December 30, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Hyun Park, Hwa-Sun You, Min-Ho Jang, Hee-Won Kang
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Patent number: 8881208Abstract: A wireless communication apparatus and a control method thereof are provided. The wireless communication apparatus includes: a first communication unit which receives a video signal from an image device; a video processor which processes the video signal; a second communication unit establishes a wireless connection with another device; and a controller receives wireless connection information from the image device through the first communication unit, and controls the second communication unit to establish the wireless connection with the other device based on the received wireless connection information.Type: GrantFiled: January 19, 2012Date of Patent: November 4, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Si-hyun Park, Seung-seop Shim, Deok-nam Kim, Sang-u Shim, Yun-seoph Kim
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Publication number: 20140286271Abstract: An apparatus and method for operating a fast feedback channel in a broadband wireless communication system are provided. The method includes generating and transmitting a feedback signal through a fast feedback channel of a first mode, determining to switch a mode of the fast feedback channel from the first mode to a second mode, transmitting a signal for requesting the mode switching of the fast feedback channel through the fast feedback channel, and generating and transmitting a feedback signal through a fast feedback channel of the second mode.Type: ApplicationFiled: June 9, 2014Publication date: September 25, 2014Inventors: Sang-Heon KIM, Hwa-Sun YOU, Hee-Won KANG, Jae-Hee CHO, Si-Hyun PARK
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Patent number: 8755464Abstract: A method and apparatus for performing channel estimation in a wireless communication system, in which a channel estimate of each pilot tone included in adjacent first and second resource allocation blocks is calculated. Channel estimates of first pilot tones are detected, which have a predetermined subcarrier spacing or less from the second resource allocation block, channel estimates of second pilot tones are detected; and which have a predetermined subcarrier spacing or less from the first resource allocation block. The channel estimates of the first and second pilot tones are updated, and channel estimation is then performed using the updated channel estimates.Type: GrantFiled: February 10, 2012Date of Patent: June 17, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Si-Hyun Park, Hwa-Sun You, Hee-Won Kang
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Patent number: 8750277Abstract: An apparatus and method for operating a fast feedback channel in a broadband wireless communication system are provided. The method includes generating and transmitting a feedback signal through a fast feedback channel of a first mode, determining to switch a mode of the fast feedback channel from the first mode to a second mode, transmitting a signal for requesting the mode switching of the fast feedback channel through the fast feedback channel, and generating and transmitting a feedback signal through a fast feedback channel of the second mode.Type: GrantFiled: August 21, 2009Date of Patent: June 10, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Heon Kim, Hwa-Sun You, Hee-Won Kang, Jae-Hee Cho, Si-Hyun Park
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Patent number: 8588790Abstract: A Handover apparatus and method of a Mobile Station (MS) in a wireless communication system in which at least one small cell resides in a macro cell includes, when entering a neighboring small cell, checking a movement speed of the MS. The method also includes determining whether to hand over to the small cell by taking into account the movement speed of the MS. When it is determined not to hand over to the small cell, that MS transmits small cell penetration information to a macro Base Station (BS); allocates a macro only resource from the macro BS; and communicates with the macro BS in the small cell using the macro only resource allocated from the macro BS.Type: GrantFiled: October 29, 2009Date of Patent: November 19, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Bo Cho, Jae-Hee Cho, Byung-Wook Jun, Hee-Won Kang, Seong-Hyeon Chae, Si-Hyun Park
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Patent number: RE47242Abstract: A wireless communication apparatus and a control method thereof are provided. The wireless communication apparatus includes: a first communication unit which receives a video signal from an image device; a video processor which processes the video signal; a second communication unit establishes a wireless connection with another device; and a controller receives wireless connection information from the image device through the first communication unit, and controls the second communication unit to establish the wireless connection with the other device based on the received wireless connection information.Type: GrantFiled: March 1, 2016Date of Patent: February 12, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si-hyun Park, Seung-seop Shim, Deok-nam Kim, Sang-u Shim, Yun-seoph Kim
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Patent number: RE48542Abstract: A wireless communication apparatus and a control method thereof are provided. The wireless communication apparatus includes: a first communication unit which receives a video signal from an image device; a video processor which processes the video signal; a second communication unit establishes a wireless connection with another device; and a controller receives wireless connection information from the image device through the first communication unit, and controls the second communication unit to establish the wireless connection with the other device based on the received wireless connection information.Type: GrantFiled: February 6, 2019Date of Patent: April 27, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Si-hyun Park, Seung-seop Shim, Deok-nam Kim, Sang-u Shim, Yun-seoph Kim