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).

  • Patent number: 11483059
    Abstract: 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: Grant
    Filed: August 12, 2020
    Date of Patent: October 25, 2022
    Assignees: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY—INDUSTRY COOPERATION
    Inventors: Nagwon Kwon, Hyunchae Kim, Chonghoon Kim
  • Publication number: 20220271827
    Abstract: 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: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Nagwon KWON, Hyunchae KIM, Chonghoon KIM, Seungmo HONG, Sungbin IM
  • Patent number: 11419076
    Abstract: 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: Grant
    Filed: August 12, 2020
    Date of Patent: August 16, 2022
    Assignees: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Nagwon Kwon, Hyunchae Kim, Chonghoon Kim
  • Patent number: 11362730
    Abstract: 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: Grant
    Filed: August 12, 2020
    Date of Patent: June 14, 2022
    Assignees: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Nagwon Kwon, Hyunchae Kim, Chonghoon Kim, Seungmo Hong, Sungbin Im
  • Patent number: 11354983
    Abstract: 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: Grant
    Filed: November 12, 2020
    Date of Patent: June 7, 2022
    Assignee: Aristocrat Technologies Australia Pty Limited
    Inventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
  • Publication number: 20210065515
    Abstract: 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: Application
    Filed: November 12, 2020
    Publication date: March 4, 2021
    Inventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
  • Publication number: 20210058878
    Abstract: 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: Application
    Filed: August 12, 2020
    Publication date: February 25, 2021
    Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Nagwon KWON, Hyunchae KIM, Chonghoon KIM
  • Publication number: 20210050908
    Abstract: 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: Application
    Filed: August 12, 2020
    Publication date: February 18, 2021
    Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Nagwon KWON, HyunChae KIM, Chonghoon KIM
  • Publication number: 20210050909
    Abstract: 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: Application
    Filed: August 12, 2020
    Publication date: February 18, 2021
    Applicants: SOLiD, INC., FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Nagwon KWON, Hyunchae KIM, Chonghoon KIM, Seungmo HONG, Sungbin IM
  • Patent number: 10867478
    Abstract: 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: Grant
    Filed: May 25, 2017
    Date of Patent: December 15, 2020
    Assignee: Aristocrat Technologies Australia Pty Limited
    Inventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
  • Publication number: 20180293847
    Abstract: 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: Application
    Filed: May 25, 2017
    Publication date: October 11, 2018
    Inventors: Bradley John Hendricks, Lorin Santucci, Thomas Tuomey, Aiden Chonghoon Kim
  • Patent number: 8155303
    Abstract: 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: Grant
    Filed: September 14, 2007
    Date of Patent: April 10, 2012
    Assignee: Solid Technologies, Inc.
    Inventors: Chonghoon Kim, Yeongha Choi, Hyungchae Kim
  • Publication number: 20080205661
    Abstract: 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: Application
    Filed: September 14, 2007
    Publication date: August 28, 2008
    Applicant: SOLID TECHNOLOGIES INC.
    Inventors: Chonghoon KIM, Yeongha CHOI, Hyungchae KIM
  • Patent number: 6677870
    Abstract: 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: Grant
    Filed: February 21, 2002
    Date of Patent: January 13, 2004
    Assignees: Solid Technologies, Inc., Versatek Telecom, Inc.
    Inventors: Sungbin Im, Chonghoon Kim, Yoan Shin
  • Publication number: 20020187761
    Abstract: 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: Application
    Filed: February 21, 2002
    Publication date: December 12, 2002
    Applicant: Solid Technologies, Inc.
    Inventors: Sungbin Im, Chonghoon Kim, Yoan Shin