Patents by Inventor Chonghoon Kim
Chonghoon Kim 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: 11483059Abstract: A method of operating a TDD-based interference cancellation repeater, the method comprises setting a compensation gain of a gain compensator differently in an uplink communication period and a downlink communication period, setting an optimal coefficient of an adaptive filter in the uplink communication period and an optimal coefficient of the adaptive filter in the downlink communication period the same, based on the set compensation gain of the gain compensator and removing an interference signal in the uplink communication period or the downlink communication period according to the set optimal coefficient of the adaptive filter.Type: GrantFiled: August 12, 2020Date of Patent: October 25, 2022Assignees: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY—INDUSTRY COOPERATIONInventors: Nagwon Kwon, Hyunchae Kim, Chonghoon Kim
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Publication number: 20220271827Abstract: A method of operating a repeater comprises selecting some of adaptive filter coefficients among a plurality of adaptive filter coefficients of an adaptive filter used for interference cancellation, based on the size of a coefficient, generating a predicted interference signal using the selected adaptive filter coefficients and generating an interference-canceled communication signal from a received signal using the generated predicted interference signal.Type: ApplicationFiled: May 11, 2022Publication date: August 25, 2022Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Nagwon KWON, Hyunchae KIM, Chonghoon KIM, Seungmo HONG, Sungbin IM
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Patent number: 11419076Abstract: Provided are a synchronization signal detection method performed by a receiver including a processor and a memory, the synchronization signal detection method comprises calculating a PSS correlation value for a primary synchronization signal (PSS) included in a received signal, detecting a frequency offset for the PSS and a timing offset for sampling timing of the received signal and detecting the PSS based on the PSS correlation value, the frequency offset, and the timing offset.Type: GrantFiled: August 12, 2020Date of Patent: August 16, 2022Assignees: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Nagwon Kwon, Hyunchae Kim, Chonghoon Kim
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Patent number: 11362730Abstract: A method of operating a repeater comprises selecting some of adaptive filter coefficients among a plurality of adaptive filter coefficients of an adaptive filter used for interference cancellation, based on the size of a coefficient, generating a predicted interference signal using the selected adaptive filter coefficients and generating an interference-canceled communication signal from a received signal using the generated predicted interference signal.Type: GrantFiled: August 12, 2020Date of Patent: June 14, 2022Assignees: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Nagwon Kwon, Hyunchae Kim, Chonghoon Kim, Seungmo Hong, Sungbin Im
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Patent number: 11354983Abstract: Systems, methods, and articles of manufacture for electronic gaming are disclosed. In a first aspect, the method is implemented on an electronic gaming system and includes initiating, by a game controller and in response to a primary game outcome of a wagering game, a bonus game. The method also includes displaying, by the game controller and in response to the initiating, a path, where the path includes a plurality of locations, and displaying, by the game controller, a wheel, where the wheel includes a plurality of stop positions. The method includes, in addition, selecting, by the game controller, a first stop position of the plurality of stop positions of the wheel, and advancing, by the game controller, an animated character on the path by a first number of locations corresponding to the first stop position.Type: GrantFiled: November 12, 2020Date of Patent: June 7, 2022Assignee: Aristocrat Technologies Australia Pty LimitedInventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
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Publication number: 20210065515Abstract: Systems, methods, and articles of manufacture for electronic gaming are disclosed. In a first aspect, the method is implemented on an electronic gaming system and includes initiating, by a game controller and in response to a primary game outcome of a wagering game, a bonus game. The method also includes displaying, by the game controller and in response to the initiating, a path, where the path includes a plurality of locations, and displaying, by the game controller, a wheel, where the wheel includes a plurality of stop positions. The method includes, in addition, selecting, by the game controller, a first stop position of the plurality of stop positions of the wheel, and advancing, by the game controller, an animated character on the path by a first number of locations corresponding to the first stop position.Type: ApplicationFiled: November 12, 2020Publication date: March 4, 2021Inventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
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Publication number: 20210058878Abstract: Provided are a synchronization signal detection method performed by a receiver including a processor and a memory, the synchronization signal detection method comprises calculating a PSS correlation value for a primary synchronization signal (PSS) included in a received signal, detecting a frequency offset for the PSS and a timing offset for sampling timing of the received signal and detecting the PSS based on the PSS correlation value, the frequency offset, and the timing offset.Type: ApplicationFiled: August 12, 2020Publication date: February 25, 2021Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Nagwon KWON, Hyunchae KIM, Chonghoon KIM
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Publication number: 20210050908Abstract: A method of operating a TDD-based interference cancellation repeater, the method comprises setting a compensation gain of a gain compensator differently in an uplink communication period and a downlink communication period, setting an optimal coefficient of an adaptive filter in the uplink communication period and an optimal coefficient of the adaptive filter in the downlink communication period the same, based on the set compensation gain of the gain compensator and removing an interference signal in the uplink communication period or the downlink communication period according to the set optimal coefficient of the adaptive filter.Type: ApplicationFiled: August 12, 2020Publication date: February 18, 2021Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Nagwon KWON, HyunChae KIM, Chonghoon KIM
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Publication number: 20210050909Abstract: A method of operating a repeater comprises selecting some of adaptive filter coefficients among a plurality of adaptive filter coefficients of an adaptive filter used for interference cancellation, based on the size of a coefficient, generating a predicted interference signal using the selected adaptive filter coefficients and generating an interference-canceled communication signal from a received signal using the generated predicted interference signal.Type: ApplicationFiled: August 12, 2020Publication date: February 18, 2021Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Nagwon KWON, Hyunchae KIM, Chonghoon KIM, Seungmo HONG, Sungbin IM
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Patent number: 10867478Abstract: Systems, methods, and articles of manufacture for electronic gaming are disclosed. In a first aspect, the method is implemented on an electronic gaming system and includes initiating, by a game controller and in response to a primary game outcome of a wagering game, a bonus game. The method also includes displaying, by the game controller and in response to the initiating, a path, where the path includes a plurality of locations, and displaying, by the game controller, a wheel, where the wheel includes a plurality of stop positions. The method includes, in addition, selecting, by the game controller, a first stop position of the plurality of stop positions of the wheel, and advancing, by the game controller, an animated character on the path by a first number of locations corresponding to the first stop position.Type: GrantFiled: May 25, 2017Date of Patent: December 15, 2020Assignee: Aristocrat Technologies Australia Pty LimitedInventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
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Publication number: 20180293847Abstract: Systems, methods, and articles of manufacture for electronic gaming are disclosed. In a first aspect, the method is implemented on an electronic gaming system and includes initiating, by a game controller and in response to a primary game outcome of a wagering game, a bonus game. The method also includes displaying, by the game controller and in response to the initiating, a path, where the path includes a plurality of locations, and displaying, by the game controller, a wheel, where the wheel includes a plurality of stop positions. The method includes, in addition, selecting, by the game controller, a first stop position of the plurality of stop positions of the wheel, and advancing, by the game controller, an animated character on the path by a first number of locations corresponding to the first stop position.Type: ApplicationFiled: May 25, 2017Publication date: October 11, 2018Inventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
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Patent number: 8155303Abstract: A system and a method for canceling an echo is disclosed. In accordance with the system and the method, a plurality of independently and variably delayed adaptive algorithm blocks are selectively applied to a delayed feedback signal to generate a plurality of echo components in parallel, thereby canceling the echo component from an input signal.Type: GrantFiled: September 14, 2007Date of Patent: April 10, 2012Assignee: Solid Technologies, Inc.Inventors: Chonghoon Kim, Yeongha Choi, Hyungchae Kim
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Publication number: 20080205661Abstract: A system and a method for canceling an echo is disclosed. In accordance with the system and the method, a plurality of independently and variably delayed adaptive algorithm blocks are selectively applied to a delayed feedback signal to generate a plurality of echo components in parallel, thereby canceling the echo component from an input signal.Type: ApplicationFiled: September 14, 2007Publication date: August 28, 2008Applicant: SOLID TECHNOLOGIES INC.Inventors: Chonghoon KIM, Yeongha CHOI, Hyungchae KIM
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Device and method for compensating for nonlinearity of power amplifier with predistortion in IF band
Patent number: 6677870Abstract: A device for compensating for the nonlinearity of a power amplifier which has a simple configuration and can precisely linearize the transfer characteristics of the power amplifier by predistorting an input signal of the power amplifier. The nonlinearity compensation device of the present invention converts an RF input signal into an IF band rather than a baseband and predistorts the RF input signal in digital domain, and thus any modulation or demodulation process is obviated and the simultaneous processing of signals in multiple channels is facilitated. A first downconverter receives the RF input signal and converts the frequency band of the signal into the IF band to output an IF input signal. A predistortion unit receives and predistorts the IF input signal to compensate for the nonlinearity, and outputs an IF predistorted signal. An upconverter converts the frequency band of the IF predistorted signal into the RF band to provide such a signal to the amplifier.Type: GrantFiled: February 21, 2002Date of Patent: January 13, 2004Assignees: Solid Technologies, Inc., Versatek Telecom, Inc.Inventors: Sungbin Im, Chonghoon Kim, Yoan Shin -
Publication number: 20020187761Abstract: A device for compensating for the nonlinearity of a power amplifier which has a simple configuration and can precisely linearize the transfer characteristics of the power amplifier by predistorting an input signal of the power amplifier. The nonlinearity compensation device of the present invention converts an RF input signal into an IF band rather than a baseband and predistorts the RF input signal in digital domain, and thus any modulation or demodulation process is obviated and the simultaneous processing of signals in multiple channels is facilitated. A first downconverter receives the RF input signal and converts the frequency band of the signal into the IF band to output an IF input signal. A predistortion unit receives and predistorts the IF input signal to compensate for the nonlinearity, and outputs an IF predistorted signal. An upconverter converts the frequency band of the IF predistorted signal into the RF band to provide such a signal to the amplifier.Type: ApplicationFiled: February 21, 2002Publication date: December 12, 2002Applicant: Solid Technologies, Inc.Inventors: Sungbin Im, Chonghoon Kim, Yoan Shin