Patents by Inventor Joonsuk Kim

Joonsuk 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).

  • Publication number: 20240357914
    Abstract: A display device includes a pixel electrode including a first subpixel electrode and a second subpixel electrode arranged to be spaced apart from each other within at least one subpixel of a plurality of subpixels over a substrate, a driving transistor driving the one subpixel, and a connection electrode structure electrically connecting at least one subpixel of the first subpixel electrode and the second subpixel electrode of the pixel electrode with the driving transistor.
    Type: Application
    Filed: June 27, 2024
    Publication date: October 24, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Dohyung KIM, Joonsuk LEE, Saemleenuri LEE, Dasom HONG
  • Patent number: 12108652
    Abstract: A display device comprises a pixel electrode including a first subpixel electrode and a second subpixel electrode arranged to be spaced apart from each other within at least one subpixel of a plurality of subpixels over a substrate, a driving transistor driving the one subpixel, and a connection electrode structure electrically connecting at least one subpixel of the first subpixel electrode and the second subpixel electrode of the pixel electrode with the driving transistor.
    Type: Grant
    Filed: June 26, 2023
    Date of Patent: October 1, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dohyung Kim, Joonsuk Lee, Saemleenuri Lee, Dasom Hong
  • Publication number: 20240298165
    Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration.
    Type: Application
    Filed: December 7, 2023
    Publication date: September 5, 2024
    Inventors: Chiu Ngok E. Wong, Christiaan A. Hartman, Zheng Zeng, Joonsuk Kim, Su Khiong Yong, Yong Liu
  • Publication number: 20240178960
    Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.
    Type: Application
    Filed: February 6, 2024
    Publication date: May 30, 2024
    Inventors: Joonsuk Kim, Yuchul Kim
  • Patent number: 11936580
    Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: March 19, 2024
    Assignee: Apple Inc.
    Inventors: Joonsuk Kim, Yuchul Kim
  • Patent number: 11877348
    Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: January 16, 2024
    Assignee: Apple Inc.
    Inventors: Chiu Ngok E. Wong, Christiaan A. Hartman, Zheng Zeng, Joonsuk Kim, Su Khiong Yong, Yong Liu
  • Patent number: 11438188
    Abstract: Methods and apparatus for transmission of data streams using a multicast packet format based on group identifiers (Group IDs) to deliver data to multiple recipient stations (STAs). Using Group IDs, an access point (AP) assigns multiple STAs to one or more groups, and uniquely assigns each STA to a particular position within the group, such that it can receive a requested data stream. A Group ID management action frame provided by the AP to an individual STA indicates to which group (or groups) the STA is assigned and the STA's position within the group, with which information the STA can determine whether a packet is intended for the STA and which portion of the packet to decode in order to receive requested data streams.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: September 6, 2022
    Inventors: Joonsuk Kim, Young Jae Kim
  • Patent number: 11418999
    Abstract: A wireless local area network (WLAN) station (STA) reports, with a medium access control (MAC) frame, a buffer status of an urgent traffic identifier (TID) to a second STA. In some embodiments, the second STA is also an access point (AP). The delay in reporting is reduced by providing a buffer status report for the urgent TID in a data frame being transmitted to carry data for a current TID. The buffer status report, in some embodiments, provides the value of the urgent TID. In some embodiments, the buffer status report provides an indication of the amount of data in a buffer corresponding to the urgent TID. In some embodiments, the buffer status report is based on an aggregated measure of more than one buffer with data awaiting transmission. The transmission of the MAC frame, in some embodiments, is unsolicited.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 16, 2022
    Inventors: Guoqing Li, Christiaan A. Hartman, Oren Shani, Matthew L. Semersky, Joonsuk Kim, Jarkko Kneckt, Ashok Ranganath, Yong Liu, Su Khiong Yong
  • Patent number: 11381284
    Abstract: An operation method of a transmitting device such as an access point providing wireless communication includes receiving a feedback of channel response information from an external communication device, generating a beam steering matrix based on the channel response information, generating a power allocation matrix based on an average SNR for each of a plurality of streams included in the channel response information, and performing beamforming on the external communication device based on the generated power allocation matrix and the generated beam steering matrix. The channel response information is a compressed beamforming feedback of multiple input multiple output single user beamforming. A first power allocated to a first stream, of which an average SNR is a first value, from among the plurality of streams is larger than a second power allocated to a second stream, of which an average SNR is a second value greater than the first value.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: July 5, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Minki Ahn, Wook Bong Lee, Sungsoo Kim, Joonsuk Kim, Eun Sung Jeon
  • Publication number: 20220132301
    Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventors: Chiu Ngok E. Wong, Christiaan A. Hartman, Zheng Zeng, Joonsuk Kim, Su Khiong Yong, Yong Liu
  • Publication number: 20220123895
    Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: Joonsuk Kim, Yuchul Kim
  • Patent number: 11258561
    Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: February 22, 2022
    Assignee: Apple Inc.
    Inventors: Joonsuk Kim, Yuchul Kim
  • Patent number: 11252555
    Abstract: Embodiments described herein relate to a system and method for providing flexible receiver configuration in wireless communication systems, such as 802.11 WLAN systems. In one embodiment, a wireless device may transmit a first data frame including first configuration information specifying a first configuration of the receiver to notify a remote device that the wireless device intends to configure its receiver according to the first configuration. After receiving an acknowledgement frame confirming the first configuration information, the wireless device may configure the receiver according to the first configuration. In another embodiment, a wireless device may receive a first data frame including first configuration information and further including a request that the wireless device configure its receiver according to the first configuration. In response, the wireless device may configure the receiver according to the first configuration.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: February 15, 2022
    Assignee: Apple Inc.
    Inventors: Chiu Ngok E. Wong, Christiaan A. Hartman, Zheng Zeng, Joonsuk Kim, Su Khiong Yong, Yong Liu
  • Patent number: 11245455
    Abstract: A method of operating a wireless communication apparatus configured to support adaptive beamforming of a base station, the method including receiving a sounding packet from the base station through a plurality of sub-carriers, generating first channel information corresponding to first sub-carriers among the plurality of sub-carriers based on the sounding packet, performing an interpolation operation using the first channel information to generate second channel information corresponding to second sub-carriers among the plurality of sub-carriers, generating first beamforming feedback including the first channel information and the second channel information, and transmitting the first beamforming feedback to the base station.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: February 8, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eunsung Jeon, Minki Ahn, Sungsoo Kim, Joonsuk Kim, Jinyong Lee
  • Publication number: 20210399771
    Abstract: An operation method of a transmitting device such as an access point providing wireless communication includes receiving a feedback of channel response information from an external communication device, generating a beam steering matrix based on the channel response information, generating a power allocation matrix based on an average SNR for each of a plurality of streams included in the channel response information, and performing beamforming on the external communication device based on the generated power allocation matrix and the generated beam steering matrix. The channel response information is a compressed beamforming feedback of multiple input multiple output single user beamforming. A first power allocated to a first stream, of which an average SNR is a first value, from among the plurality of streams is larger than a second power allocated to a second stream, of which an average SNR is a second value greater than the first value.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 23, 2021
    Inventors: MINKI AHN, Wook Bong LEE, SUNGSOO KIM, JOONSUK KIM, EUN SUNG JEON
  • Publication number: 20210184737
    Abstract: A method of operating a wireless communication apparatus configured to support adaptive beamforming of a base station, the method including receiving a sounding packet from the base station through a plurality of sub-carriers, generating first channel information corresponding to first sub-carriers among the plurality of sub-carriers based on the sounding packet, performing an interpolation operation using the first channel information to generate second channel information corresponding to second sub-carriers among the plurality of sub-carriers, generating first beamforming feedback including the first channel information and the second channel information, and transmitting the first beamforming feedback to the base station.
    Type: Application
    Filed: September 18, 2020
    Publication date: June 17, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eunsung JEON, Minki AHN, Sungsoo KIM, Joonsuk KIM, Jinyong LEE
  • Patent number: 11032757
    Abstract: Passive and active scanning for extended range wireless networking. The choice between legacy and extended range signaling can depend on one or more factors. For passive scanning, an electronic device may transmit a combination of legacy beacons and extended range beacons for network discovery by receiving electronic devices. For active scanning, an electronic device may transmit extended range probe requests in addition to legacy probe requests to discover all of the access points within its transmission range. Responses to probe requests can use extended range, legacy, single user, and/or multi user protocols.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: June 8, 2021
    Assignee: Apple Inc.
    Inventors: Jarkko L. Kneckt, Christiaan A. Hartman, Guoqing Li, Joonsuk Kim, Matthew L. Semersky, Oren Shani, Syed A. Mujtaba, Yong Liu
  • Patent number: 10986571
    Abstract: A station (STA) of a wireless local area network (WLAN) transitions implicitly between power management (PM) modes or PM states, without providing an explicit indication of the PM mode/state change to an access point (AP) of the WLAN. Transitions include changes between an active mode and a power save (PS) mode, or between an awake state and a doze state of the PS mode. Transitions occur immediately after receipt of a beacon indicating pending data for the STA, after an offset time indicated in the beacon, or at a specific wake time negotiated with the AP. After data reception is complete, the STA transitions implicitly to the PS mode or a doze state of the PS mode, after a power save inactivity timeout period or after receiving an indication that data transmission is complete.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: April 20, 2021
    Assignee: Apple Inc.
    Inventors: Chiu Ngok E. Wong, Syed A. Mujtaba, Christiaan A. Hartman, Joonsuk Kim
  • Patent number: 10979122
    Abstract: A method of operating a wireless communication apparatus, the method comprising: estimating a first channel using a sounding packet received from a base station to obtain an estimated first channel, the sounding packet including a plurality of first streams, generating a diagonal matrix and a beam steering matrix by performing singular value decomposition (SVD) on the estimated first channel, generating state information of a plurality of second channels respectively corresponding to a plurality of second streams generated by applying the beam steering matrix to the plurality of first streams using the diagonal matrix, and transmitting beamforming feedback based on the state information to the base station.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: April 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eunsung Jeon, Wookbong Lee, Sungsoo Kim, Joonsuk Kim, Minki Ahn
  • Patent number: 10911190
    Abstract: During operation, an interface circuit in an electronic device may receive, from a second electronic device (such as an access point in a WLAN), an uplink trigger frame that may specify an access category. In response to the uplink trigger frame, the electronic device may first include data associated with the specified access category in one or more frames, and then may transmit the one or more frames to the second electronic device. Moreover, when all the data associated with the specified access category has been transmitted or when there is no data associated with the specified access category, and when there is leftover time in an allocation associated with the uplink trigger frame, the interface circuit may transmit the one or more frames to the second electronic device with additional data associated with another access category that is different from the specified access category.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 2, 2021
    Assignee: Apple Inc.
    Inventors: Guoqing Li, Yong Liu, Christiaan A. Hartman, Ashok Ranganath, Oren Shani, Su Khiong Yong, Jarkko L. Kneckt, Joonsuk Kim