Patents by Inventor Won-ick LEE

Won-ick LEE 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: 20240106073
    Abstract: Provided are a separator coating composition for a secondary battery including inorganic particles and a silane salt compound having a specific structure, a separator using the same, and an electrochemical device including the same. Specifically, a separator coating composition for a secondary battery which implements adhesion between an inorganic material layer and a porous substrate without including an acid/polymer-based organic binder in a coating composition for forming the inorganic material layer on one or both surfaces of the porous substrate and does not need a separate dispersing agent for dispersing the inorganic particles, a separator manufactured using the same, and an electrochemical device including the separator are provided.
    Type: Application
    Filed: September 13, 2023
    Publication date: March 28, 2024
    Inventors: Tae Wook KWON, Sang Ick LEE, Won Sub KWACK, Cheol Woo KIM, Hyo Shin KWAK, Heung Taek BAE
  • Publication number: 20170188264
    Abstract: Various aspects described herein relate to interference cancellation. A received signal is received at a receiver chain, where the received signal is interfered by an aggressor signal transmitted using a transmitter chain. In a second portion of a time interval, one or more cancellation coefficients can be updated based on a measurement made in a first portion of the time interval, where the time interval can be within a protocol time interval of a protocol used by the transmitter chain. Based on the one or more updated cancellation coefficients, interference cancellation is performed to cancel interference of the aggressor signal from the received signal.
    Type: Application
    Filed: June 14, 2016
    Publication date: June 29, 2017
    Inventors: Insoo HWANG, Bongyong SONG, Won-ick LEE
  • Publication number: 20170134074
    Abstract: A multiple input and multiple output device includes a first input switch, a second input switch, a first set of analog interference cancellation (AIC) circuits, and a second set of AIC circuits. The first input switch is configured to select one of a first transmit input of first transmit inputs or a first transmit input of second transmit inputs. The second input switch is configured to select one of a second transmit input of the first transmit inputs or a second transmit input of the second transmit inputs. The first set of AIC circuits and the second set of AIC circuits are coupled to the first input switch and to the second input switch. The first set of AIC circuits is configured to output a first cancellation signal. The second set of AIC circuits is configured to output a second cancellation signal.
    Type: Application
    Filed: October 12, 2016
    Publication date: May 11, 2017
    Inventors: Ozgur Dural, Insoo Hwang, Won-ick Lee, Samir Soliman, Mark Maggenti, Kaushik Chakraborty, Sundar Rajan Krishnamurthy
  • Publication number: 20170063427
    Abstract: Various aspects described herein relate to providing analog interference cancelation in a shared antenna. A plurality of signals can be obtained at a plurality of reference points in a transmitter chain of a shared antenna. At least one reference point of the plurality of reference points from which to generate a cancelation signal and/or at least one injection point for injecting the cancelation signal can be selected based at least in part on expected analog interference cancelation metrics related to each of the plurality of reference points and/or the at least one injection point. The cancelation signal can be generated based at least in part on the at least one reference point and/or injection point. The cancelation signal can be injected in the injection point at a receiver chain of the shared antenna to cancel interference from signals generated at the transmitter chain of the shared antenna.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 2, 2017
    Inventors: Won-ick LEE, Insoo HWANG, Kaushik CHAKRABORTY, Ozgur DURAL, Samir Salib Soliman, Mark Anthony MAGGENTI
  • Publication number: 20170041039
    Abstract: Various aspects described herein relate to providing analog interference cancellation using digitally computed coefficients. An aggressor signal can be obtained from a transmitter chain of a radio frequency (RF) front end. A digital representation of the aggressor signal can be generated, and cancellation coefficients can be estimated for the digital representation of the aggressor signal. An analog cancellation signal can be generated based at least in part the cancellation coefficients and the digital representation of the aggressor signal. The analog cancellation signal can be added to a victim signal in a receiver chain of the RF front end to cancel interference to the victim signal from the aggressor signal.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 9, 2017
    Inventors: Insoo HWANG, Joonhoi Hur, Won-ick Lee
  • Publication number: 20170041095
    Abstract: A wireless device may determine the level of interference mitigation appropriate for the application and dynamically select a combination of interference cancellation components that satisfies that level. The combination of interference cancellation components may include components that consume power (e.g., active components) and components that do not consume power (e.g., passive components). The interference cancellation components may be used at the transmitter and/or the receiver. In some cases, the wireless device may also determine how much power is acceptable to expend on the interference mitigation. In such scenarios, the selection of the interference cancellation components may be such that the aggregated power consumption is less than the power expenditure limit.
    Type: Application
    Filed: August 6, 2015
    Publication date: February 9, 2017
    Inventors: Insoo Hwang, Cong Nguyen, Won-ick Lee, Mark Maggenti, Ozgur Dural
  • Publication number: 20160365879
    Abstract: A method for wireless communication is described. A primary radio frequency integrated circuit (RFIC) supporting a plurality of radio frequency (RF) receive paths is provided. Standalone RF resources of a core-resource RFIC to integrate with the plurality of RF receive paths of the primary RFIC to enable an additional functionality of the primary RFIC are then added. A minimum set of RF resources necessary to add support for an additional RF receive path may be determined, and RF resources, including one or more of an antenna, an RF front end, and a low-noise amplifier (LNA) and switches of the primary RFIC, may be shared. A digital baseband integrated circuit (IC), i.e. a modem, may be operated to support both a first of the plurality of RF receive paths from the primary RFIC and a second of the plurality of RF receive paths from the core-resource RFIC.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 15, 2016
    Inventors: Samir Salib Soliman, Won-ick Lee, Bongyong Song, Olufunmilola Awoniyi-Oteri
  • Patent number: 9462600
    Abstract: A time period associated with each of a plurality of tasks included in a current instance of WWAN data capture/processing by a WLAN processor and a WWAN processor is determined. A total time period comprising the respective time periods of each task is compared to an overall time budget criterion to obtain a comparison outcome. A change in at least one of the tasks based on the comparison outcome is implemented. The change results in an adjustment of the total time period associated with a next instance of WWAN data capture/processing by the WLAN processor and the WWAN processor.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Ozgur Dural, Kaushik Chakraborty, Soumya Das, Olufunmilola Awoniyi-Oteri, Won-ick Lee
  • Patent number: 9425837
    Abstract: A device may use enhanced power amplifier (PA) linearization techniques such as adaptive feed-forward (FF) linearization using adaptive filters. In one example, an adaptive feed-forward linearizer may isolate a distortion signal based at least in part on the signals input to and output from a PA in a transmission path. The distortion signal may be used to cancel distortion at the output of the PA to produce an improved output signal. A first adaptive circuit may be used to produce the distortion signal and a second adaptive circuit may be used to produce an error cancellation signal based at least in part on the distortion signal. The error cancellation signal may be amplified and re-introduced to the transmission path to produce the improved output signal. Semi-adaptive circuits may be used in place of the adaptive circuits, or a hybrid approach may be used.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: August 23, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Insoo Hwang, Cong Nguyen, Won-ick Lee
  • Publication number: 20160073399
    Abstract: A time period associated with each of a plurality of tasks included in a current instance of WWAN data capture/processing by a WLAN processor and a WWAN processor is determined. A total time period comprising the respective time periods of each task is compared to an overall time budget criterion to obtain a comparison outcome. A change in at least one of the tasks based on the comparison outcome is implemented. The change results in an adjustment of the total time period associated with a next instance of WWAN data capture/processing by the WLAN processor and the WWAN processor.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 10, 2016
    Inventors: Ozgur DURAL, Kaushik CHAKRABORTY, Soumya DAS, Olufunmilola AWONIYI-OTERI, Won-ick LEE