Patents by Inventor Tae-kyung Lee

Tae-kyung 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).

  • Method and system for estimating battery model parameters to update battery models used for controls
    Patent number: 10288691
    Abstract: A powertrain having a traction battery is operated according to performance variables of the battery based on state variables of a reduced-order electrochemical model of the battery. The state variables are estimated by an estimator based on the battery model. A parameter of the battery model characterizing dynamics of the state variables with respect to battery operating conditions is updated by the estimator based on the battery model.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: May 14, 2019
    Assignee: Ford Global Technologies, LLC
    Inventor: Tae-Kyung Lee
  • APPARATUS FOR NETWORK FUNCTION VIRTUALIZATION USING SOFTWARE DEFINED NETWORKING AND OPERATION METHOD THEREOF
    Publication number: 20190132345
    Abstract: A network function virtualization (NFV) apparatus according to the present disclosure may include: a virtual machine which is configured to perform a first network function, generate a flow rule according to network configuration information received from a user or a result of performing the first network function, and transmit the flow rule to a software switch; and the software switch which is configured to perform a second network function, and process a packet according to the flow rule. According to the present disclosure, separate a virtual network function may be separated into a data (packet) processing function and a control function, whereby a fast processing speed provided by a software switch and virtual machine's processing capability with high complexity may be maximally utilized.
    Type: Application
    Filed: October 22, 2018
    Publication date: May 2, 2019
    Inventors: Eun Ho CHA, Tae Kyung LEE, Yong Joo SONG
  • METHOD AND ELECTRONIC DEVICE FOR CONTROLLING POWER BETWEEN ELECTRONIC DEVICES
    Publication number: 20190064900
    Abstract: An electronic device according to various embodiments may include a first connector including at least one first pin and at least one second pin configured to be connected to an external electronic device; a second connector comprising at least one third pin and at least one fourth pin configured to be connected to a power supply; a switching circuit; and a processor electrically connected to the first connector, the second connector, and the switching circuit, wherein the processor is configured to determine a connection with the external electronic device or a connection with the power supply, and the processor is set to cause, when connected to the external electronic device via the first connector and connected to the power supply via the second connector, power received from the power supply via the at least one third pin to be supplied to the at least one first pin using the switching circuit.
    Type: Application
    Filed: May 23, 2018
    Publication date: February 28, 2019
    Inventors: Tae-Kyung LEE, Woo-Taek SONG, Hyun-Ji SONG
  • BULK ACOUSTIC WAVE RESONATOR
    Publication number: 20190058451
    Abstract: A bulk acoustic wave resonator includes: a substrate; a lower electrode disposed on the substrate; a piezoelectric layer at least partially disposed on the lower electrode; and an upper electrode disposed on the piezoelectric layer, wherein either one or both of the lower electrode and the upper electrode includes a layer of aluminum alloy including scandium (Sc).
    Type: Application
    Filed: July 19, 2018
    Publication date: February 21, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Ran Hee SHIN, Je Hong KYOUNG, Hwa Sun LEE, Jin Suk SON, Sung Sun KIM
  • Bulk acoustic resonator and filter
    Patent number: 10193526
    Abstract: A bulk acoustic resonator includes a substrate, a first electrode disposed above the substrate, a piezoelectric body disposed on the first electrode and including a plurality of piezoelectric layers each including aluminum nitride with a doping material, and a second electrode disposed on the piezoelectric body, where at least one of the piezoelectric layers is a compressive piezoelectric layer formed under compressive stress.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 29, 2019
    Assignee: Samsung Electro-Machanics Co., Ltd.
    Inventors: Tae Kyung Lee, In Young Kang, Ran Hee Shin, Jin Suk Son
  • ACOUSTIC RESONATOR AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20190013792
    Abstract: An acoustic resonator includes a substrate, a center portion, an extending portion, and a barrier layer. A first electrode, a piezoelectric layer, and a second electrode are sequentially stacked on the substrate in the central portion. The extending portion is configured to extend from the center portion, and includes an insertion layer disposed below the piezoelectric layer. The barrier layer is disposed between the first electrode and the piezoelectric layer.
    Type: Application
    Filed: May 7, 2018
    Publication date: January 10, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Sung Sun KIM, Sang Kee YOON, Chang Hyun LIM, Jin Suk SON, Ran Hee SHIN, Je Hong KYOUNG
  • Method for sharing images and electronic device performing thereof
    Patent number: 10168981
    Abstract: An electronic device for a head-mounted device (HMD) is provided. The electronic device includes a display, a memory configured to store virtual reality content, a processor configured to play back binocular image data based on the virtual reality content on the display, and a communication circuit configured to communicate with an external device. At this time, the processor is configured to determine whether the virtual reality content is stored in the external device and to determine data to be transmitted to the external device based on the determined result.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: January 1, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo Taek Song, Tae Kyung Lee, Dong Il Son, Chi Hyun Cho, Jong Chul Choi, Chang Ryong Heo
  • ACOUSTIC RESONATOR AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20180351534
    Abstract: An acoustic resonator includes a membrane layer disposed on an insulating layer; a cavity formed by the insulating layer and the membrane layer and having a hydrophobic layer disposed on at least one of a portion of an upper surface of the cavity and a portion of a lower surface of the cavity; and a resonating portion disposed on the cavity and having a second electrode on a piezoelectric layer on a first electrode.
    Type: Application
    Filed: January 19, 2018
    Publication date: December 6, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Jin Suk SON, Je Hong KYOUNG, Ran Hee SHIN, Sung Sun KIM
  • ACOUSTIC RESONATOR AND METHOD FOR FABRICATING THE SAME
    Publication number: 20180351533
    Abstract: An acoustic resonator includes a membrane layer disposed on an insulating layer; a cavity formed by the insulating layer and the membrane layer; a resonating portion disposed on the cavity and having a first electrode, a piezoelectric layer, and a second electrode stacked thereon; a protective layer disposed on the resonating portion; and a hydrophobic layer formed on the protective layer.
    Type: Application
    Filed: January 19, 2018
    Publication date: December 6, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Jun LIM, Jong Woon KIM, Ran Hee SHIN, Sung Sun KIM
  • Fe—Mn—C-based TWIP steel having remarkable mechanical performance at very low temperature, and preparation method thereof
    Patent number: 10144982
    Abstract: Provided is a Fe—Mn—C-based twinning-induced plasticity (TWIP) steel which includes 13 wt % to 24 wt % of manganese (Mn), 0.4 wt % to 1.2 wt % of carbon (C), and iron (Fe) as well as other unavoidable impurities as a remainder, is manufactured by caliber rolling, has a microstructure including elongated grains that are elongated in a rolling direction, and has an average grain size of the elongated grains in a direction perpendicular to the rolling direction of 1 ?m or less.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: December 4, 2018
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Tae Kyung Lee, Chong Soo Lee, Seok Weon Song, Jae Hyung Kim, Kaneaki Tsuzaki, Motomichi Koyama
  • Battery capacity estimation based on open-loop and closed-loop models
    Patent number: 10118500
    Abstract: A vehicle power system may include a controller programmed to output an electric only range indicator based on a change in capacity of a traction battery derived from open-loop and closed-loop estimates of change in state of charge of the traction battery. The change in capacity may be proportional to a ratio of the open-loop estimate to the closed-loop estimate. The closed-loop estimate may contain information indicative of the change in capacity. The open-loop estimate may contain information indicative of an initial capacity of the traction battery.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 6, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Tae-Kyung Lee
  • BAW RESONATOR AND BAW FILTER FOR REDUCING HARMONIC DISTORTION
    Publication number: 20180294792
    Abstract: A bulk acoustic wave (BAW) resonator includes: a substrate; a first BAW resonator including a first air cavity disposed in the substrate, and further including a first electrode, a first piezoelectric layer, and a second electrode stacked on the first air cavity; a second BAW resonator including a second air cavity disposed in the substrate, and further including a first electrode, a second piezoelectric layer, and a second electrode stacked on the second air cavity, wherein the second BAW resonator is connected in parallel to the first BAW resonator and has polarities that are opposite of polarities of the first BAW resonator; and a compensation capacitor circuit connected between the first BAW resonator and the second BAW resonator.
    Type: Application
    Filed: January 22, 2018
    Publication date: October 11, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Moon Chul LEE, Tah Joon PARK, Jae Chang LEE, Tae Yoon KIM, Chang Hyun LIM, Hwa Sun LEE, Tae Hun LEE, Hyun Min HWANG, Tae Kyung LEE
  • ACOUSTIC WAVE RESONATOR
    Publication number: 20180278230
    Abstract: An acoustic wave resonator includes a resonating part disposed on and spaced apart from a substrate by a cavity, the resonating part including a membrane layer, a first electrode, a piezoelectric layer, and a second electrode that are sequentially stacked. 0 ???Mg?170 ? may be satisfied, ?Mg being a difference between a maximum thickness and a minimum thickness of the membrane layer disposed in the cavity.
    Type: Application
    Filed: October 19, 2017
    Publication date: September 27, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Tae Yoon KIM, Sang Kee YOON, Chang Hyun LIM, Jong Woon KIM, Moon Chul LEE
  • BULK ACOUSTIC WAVE RESONATOR AND FILTER INCLUDING THE SAME
    Publication number: 20180278232
    Abstract: A bulk acoustic wave resonator includes a substrate, a first electrode and a second electrode disposed on the substrate, and a piezoelectric layer disposed between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an alloy of molybdenum and tantalum.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 27, 2018
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Kyung LEE, Sung HAN, Hwa Sun LEE, Seung Joo SHIN, Ran Hee SHIN
  • FILM BULK ACOUSTIC RESONATOR AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20180262180
    Abstract: A film bulk acoustic resonator includes: a first electrode disposed on a substrate; a piezoelectric body disposed on the first electrode and including AlN to which a dopant is added; and a second electrode disposed on the piezoelectric body and facing the first electrode such that the piezoelectric body is interposed between the second electrode and the first electrode, wherein the dopant includes either one of 0.1 to 24 at % of Ta and 0.1 to 23 at % of Nb.
    Type: Application
    Filed: November 9, 2017
    Publication date: September 13, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Jin Suk SON, Sung Sun KIM, Je Hong KYOUNG, Hwa Sun LEE, Ran Hee SHIN
  • ACOUSTIC RESONATOR AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20180254764
    Abstract: An acoustic resonator includes: a central portion; an extension portion extended outwardly of the central portion; a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on a substrate, in the central portion; and an insertion layer disposed below the piezoelectric layer in the extension portion, wherein the piezoelectric layer includes a piezoelectric portion disposed in the central portion, and a bent portion disposed in the extension portion and extended from the piezoelectric portion at an incline depending on a shape of the insertion layer.
    Type: Application
    Filed: October 30, 2017
    Publication date: September 6, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung LEE, Won HAN, Tae Yoon KIM, Jong Woon KIM, Moon Chul LEE, Chang Hyun LIM, Sang Kee YOON, Hwa Sun LEE, Dae Hun JEONG
  • Bulk-acoustic wave filter device
    Patent number: 10069475
    Abstract: A bulk-acoustic wave filter device includes: a lower electrode layer disposed on the substrate; a bonding part disposed on the lower electrode layer, at an edge of the substrate; a ground part spaced apart from the bonding part; and a flow suppressing part disposed between the bonding part and the ground part, and offset with respect to the bonding part and the ground part.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: September 4, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung Lee, Yong Jin Kang, Moon Chul Lee, Jae Hyoung Gil, Chang Hyun Lim, Tae Yoon Kim
  • Battery terminal voltage prediction
    Patent number: 10040366
    Abstract: A vehicle may include a controller programmed to discharge and charge a battery according to battery terminal voltage values predicted for future time instants traversed by a leading edge of a temporal sliding window having a selectable period based on resistance and capacitance parameters representing the battery and a duration of the selectable period. The battery terminal voltage values may be further predicted based on a state of charge of the battery. The resistance parameters may include internal resistance. Some of the resistance and capacitance parameters may define an RC circuit. The battery terminal voltage values may be further predicted based on a voltage drop across the RC circuit.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 7, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Tae-Kyung Lee
  • Battery power management in hybrid vehicles
    Patent number: 10035426
    Abstract: A vehicle may include a controller programmed to charge and discharge a battery according to an upper power limit that is based on estimates of ion-concentration profiles in the battery. The controller may be programmed such that for a given state of charge and temperature of the battery, the upper power limit increases as the profiles flatten. The upper power limit may be further based on a difference between a predefined expected power capability limit at the given state of charge and a power capability limit estimated from a voltage output and current input associated with the given state of charge.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: July 31, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Tae-Kyung Lee
  • Power capability estimation for vehicle battery systems
    Patent number: 10023064
    Abstract: A controller of a vehicle may be programmed to charge and discharge a battery according to a state of charge derived from model parameters defining one of a series of RC circuits that characterize frequency response of the battery to input current and that each has a time constant proportional to another of the time constants, and a proportionality parameter indicative of proportional relationship between the time constants. The proportionality parameter may be such that a ratio of the resistances of the RC circuits is equal to a ratio of the capacitances of the RC circuits.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: July 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventor: Tae-Kyung Lee