Patents by Inventor Suwon Kang

Suwon Kang 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: 11646908
    Abstract: A bus adapter comprises: an interface unit configured to be connected to a Communication Module (CM), which is intended to communicated based on a first Communication Protocol (CP) such as CAN, via a first and a second signal lines, and to transceive bit signals through the first and the second signal lines; and a link control unit, connected to a data bus of a second CP, configured to transmit data stored in an outward buffer through the data bus, and to detect data from signals being carried on the data bus. The interface unit transmits data stored in an inward buffer to the CM via the second signal line in form of a format defined by the first CP and it drives the second signal line so that a bit string appears on the second signal line when the bit string is received through the first signal line.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 9, 2023
    Assignee: VELONECT INC.
    Inventor: Suwon Kang
  • Patent number: 11228467
    Abstract: Disclosed is a device that multiplies a first signal outputted from a CTLE and a second signal obtained by delaying the first signal by a predetermined time interval; produces a specific signal reflecting a temporal sum of the multiplied signal; determines gain control signal in a manner such that the difference between the specific signal and a predetermined target level is reduced; and provides the determined gain control signal to the CTLE so as to be applied to high-band boosting thereof. The time interval to be delayed corresponds to N (N is an integer equal to or greater than one) times a unit interval that is occupied by one symbol in the first signal.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: January 18, 2022
    Assignee: VSI CORPORATION
    Inventors: Suwon Kang, Sungmin Han
  • Publication number: 20210234725
    Abstract: A bus adapter comprises: an interface unit configured to be connected to a Communication Module (CM), which is intended to communicated based on a first Communication Protocol (CP) such as CAN, via a first and a second signal lines, and to transceive bit signals through the first and the second signal lines; and a link control unit, connected to a data bus of a second CP, configured to transmit data stored in an outward buffer through the data bus, and to detect data from signals being carried on the data bus. The interface unit transmits data stored in an inward buffer to the CM via the second signal line in form of a format defined by the first CP and it drives the second signal line so that a bit string appears on the second signal line when the bit string is received through the first signal line.
    Type: Application
    Filed: April 23, 2019
    Publication date: July 29, 2021
    Inventor: Suwon KANG
  • Patent number: 10721092
    Abstract: Disclosed is a high-speed controller area network (CAN) communication system, which is compatible with a CAN communication system, using passband modulation. The system includes: a high-speed CAN controller configured to provide a standard CAN transmission bit stream and a high-speed CAN transmission bit stream; and a high-speed CAN transmitter configured to synthesize a passband CAN signal obtained by modulating the high-speed CAN transmission bit stream in a passband and a standard CAN signal based on the standard CAN transmission bit stream and to transmit it to a CAN bus.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: July 21, 2020
    Assignee: VSI CORPORATION
    Inventor: Suwon Kang
  • Patent number: 10270617
    Abstract: A method of equalizing received packet data in a bus topology network, including: receiving, by a receiver of a second node, a first packet from a first node in a bus topology network in which two or more nodes are connected via a bus; setting, by the receiver, an equalizer coefficient of an equalizer using a first training sequence of the first packet and storing the set equalizer coefficient; receiving, by the receiver, a second packet including a second training sequence shorter than the first training sequence from the first node; and equalizing, by the receiver, the second packet using the stored equalizer coefficient.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: April 23, 2019
    Assignee: VSI CORPORATION
    Inventor: Suwon Kang
  • Publication number: 20180013577
    Abstract: A method of equalizing received packet data in a bus topology network, including: receiving, by a receiver of a second node, a first packet from a first node in a bus topology network in which two or more nodes are connected via a bus; setting, by the receiver, an equalizer coefficient of an equalizer using a first training sequence of the first packet and storing the set equalizer coefficient; receiving, by the receiver, a second packet including a second training sequence shorter than the first training sequence from the first node; and equalizing, by the receiver, the second packet using the stored equalizer coefficient.
    Type: Application
    Filed: December 11, 2015
    Publication date: January 11, 2018
    Inventor: Suwon KANG
  • Publication number: 20160241418
    Abstract: Disclosed is a high-speed controller area network (CAN) communication system, which is compatible with a CAN communication system, using passband modulation. The system includes: a high-speed CAN controller configured to provide a standard CAN transmission bit stream and a high-speed CAN transmission bit stream; and a high-speed CAN transmitter configured to synthesize a passband CAN signal obtained by modulating the high-speed CAN transmission bit stream in a passband and a standard CAN signal based on the standard CAN transmission bit stream and to transmit it to a CAN bus.
    Type: Application
    Filed: October 1, 2014
    Publication date: August 18, 2016
    Inventor: Suwon KANG
  • Patent number: 8583064
    Abstract: A receiver includes a first mixer configured to provide an in-phase (I) component of a radio frequency (RF) signal to an I channel by down-converting the RF signal, a second mixer configured to provide a quadrature (Q) component of the RF signal to a Q channel by down-converting the RF signal, amplification means, arranged on the I and Q channels, configured to amplify the I and Q components, a mismatch estimator configured to convert the amplified I and Q components into a frequency domain, and estimate a gain mismatch value and a phase mismatch value on the basis of the converted components, and a mismatch compensator configured to compensate for mismatch of the received signal on the basis of the estimated gain and phase mismatch values.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: November 12, 2013
    Assignee: GCT semiconductor, Inc.
    Inventors: Young Hwan Kang, Jiyoung Cho, Suwon Kang
  • Publication number: 20120270516
    Abstract: A receiver includes a first mixer configured to provide an in-phase (I) component of a radio frequency (RF) signal to an I channel by down-converting the RF signal, a second mixer configured to provide a quadrature (Q) component of the RF signal to a Q channel by down-converting the RF signal, amplification means, arranged on the I and Q channels, configured to amplify the I and Q components, a mismatch estimator configured to convert the amplified I and Q components into a frequency domain, and estimate a gain mismatch value and a phase mismatch value on the basis of the converted components, and a mismatch compensator configured to compensate for mismatch of the received signal on the basis of the estimated gain and phase mismatch values.
    Type: Application
    Filed: October 13, 2011
    Publication date: October 25, 2012
    Inventors: Young Hwan Kang, Jiyoung Cho, Suwon Kang
  • Patent number: 7606293
    Abstract: A bidirectional turbo ISI canceller cancels precursor-ISI as well as postcursor-ISI in a received signal without incorporating a multiplicative feedforward equalization filter. This is accomplished by taking a three-step receiver design approach. In the first step, an optimal single-symbol RAKE receiver is designed to comprise a CMF, a codeword correlator bank, and an energy bias (EB) canceller under the assumption that no ISI is generated by preceding or trailing symbols. In a second step, a DFE is included for suppressing postcursor-ISI caused by a preceding symbol. Finally, a precursor ISI canceler is used to remove the remaining ISI caused by a trailing symbol. All three components may be integrated into a BTIC-based receiver applying turbo-iteration processing.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 20, 2009
    Assignee: GCT Semiconductor, Inc.
    Inventors: Byoung-Hoon Kim, Suwon Kang, Bong Youl Cho, Kyeongho Lee
  • Publication number: 20040131109
    Abstract: A bidirectional turbo ISI canceller cancels precursor-ISI as well as postcursor-ISI in a received signal without incorporating a multiplicative feedforward equalization filter. This is accomplished by taking a three-step receiver design approach. In the first step, an optimal single-symbol RAKE receiver is designed to comprise a CMF, a codeword correlator bank, and an energy bias (EB) canceller under the assumption that no ISI is generated by preceding or trailing symbols. In a second step, a DFE is included for suppressing postcursor-ISI caused by a preceding symbol. Finally, a precursor ISI canceler is used to remove the remaining ISI caused by a trailing symbol. All three components may be integrated into a BTIC-based receiver applying turbo-iteration processing.
    Type: Application
    Filed: October 23, 2003
    Publication date: July 8, 2004
    Applicant: GCT Semiconductor, Inc.
    Inventors: Byoung-Hoon Kim, Suwon Kang, Bong Youl Cho, Kyeongho Lee
  • Patent number: 6498927
    Abstract: A wireless or wired communication system and method is provided including a transmitter and a receiver. A RF communication system in accordance with the present invention includes an apparatus and gain control method between RF receiver and baseband modem in case of a plurality of gain stages inside a receiver. The gain of each stage can be controlled by an integrated gain controller. The gain controller monitors the signal level of each gain stage to place its gain to optimal value. The gain control apparatus and method can be implemented in a digital AGC system. The gain controller accepts a signal implementing gain control and thus there is no stability issue. When distributed gain stages are present inside a related art receiver and separate gain control loops are used, stability issues can arise. In a preferred embodiment of an apparatus and method, the baseband modem decides the amount of gain control and adjusts the gain of certain gain stages by the proper amount.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: December 24, 2002
    Assignee: GCT Semiconductor, Inc.
    Inventors: Suwon Kang, Jeong-Woo Lee, Joonbae Park
  • Publication number: 20020142745
    Abstract: A wireless or wired communication system and method is provided including a transmitter and a receiver. A RF communication system in accordance with the present invention includes an apparatus and gain control method between RF receiver and baseband modem in case of a plurality of gain stages inside a receiver. The gain of each stage can be controlled by an integrated gain controller. The gain controller monitors the signal level of each gain stage to place its gain to optimal value. The gain control apparatus and method can be implemented in a digital AGC system. The gain controller accepts a signal implementing gain control and thus there is no stability issue. When distributed gain stages are present inside a related art receiver and separate gain control loops are used, stability issues can arise. In a preferred embodiment of an apparatus and method, the baseband modem decides the amount of gain control and adjusts the gain of certain gain stages by the proper amount.
    Type: Application
    Filed: August 29, 2001
    Publication date: October 3, 2002
    Applicant: GCT Semiconductor, Inc.
    Inventors: Suwon Kang, Jeong-Woo Lee, Joonbae Park