Patents by Inventor Kyeong Jin Kim
Kyeong Jin 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).
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Patent number: 10237055Abstract: Systems and methods for a communication system including a set of transmitters, wherein operations of the set of transmitters are synchronized with an accuracy bound by a synchronization error. A controller forms a message with ordered symbols including data symbols and at least one identification symbol, and controls transmitters from the set of transmitters to transmit the message using a cyclic delay diversity (CDD). Wherein each transmitting transmitter prior to transmitting, circularly rotates the ordered symbols of the message with a unique shift, then copies some symbols located at an end of the message. Wherein a number of the copied symbols is based on a predetermined cyclic prefix length, into a first position in the rotated message, to form a transmitter identifiable message, and transmits via each transmitting transmitter the transmitter identifiable message.Type: GrantFiled: December 12, 2017Date of Patent: March 19, 2019Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Kyeong Jin Kim, Philip Orlik
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Patent number: 10222644Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: GrantFiled: July 10, 2017Date of Patent: March 5, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin Kim, Jung-Im Hwang, Ji-Na Jeon, Kyung-Su Ha, Min-Geun Choi
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Patent number: 10218550Abstract: A transmitter or receiver including at least one radio-frequency (RF) chain. The RF chain including an array of transmitting elements, each transmitting element includes a band-pass filter and an antenna connected in series for transmitting an analog signal using a beamforming with an angle of departure (AOD) defined by phase shifts of analog signals received by different transmitting elements within the array. A phase shifter to shift a phase of an input signal. A variable gain amplifier (VGA) to change an amplitude of the input signal. A switcher to connect the phase shifter and the VGA to each transmitting element in the array. Wherein at most one transmitting element is connected to the phase shifter and the VGA at a given point of time, such that the switcher is a single-pole-M-throw (SPMT) analog switch. A controller to control the phase shifter, the VGA and the switcher.Type: GrantFiled: January 18, 2018Date of Patent: February 26, 2019Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Kyeong Jin Kim, Zhengyu Peng, Bingnan Wang, Koon Hoo Teo
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Publication number: 20190013847Abstract: A wireless communication system includes a controller to control a plurality of antenna subarrays of a first wireless communication device to form a plurality of directional beams to communicate a beamformed diversity wireless transmission between the first wireless communication device and a set of second wireless communication devices over a plurality of communication channels. The controller assigns at least some antenna subarrays to at least some second wireless communication devices using a greedy optimization with a relaxation parameter and controls the plurality of antenna subarrays according to the assignment.Type: ApplicationFiled: July 7, 2017Publication date: January 10, 2019Applicant: Mitsubishi Electric Research Laboratories, IncInventors: Kyeong Jin Kim, Philip Orlik
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Patent number: 10168566Abstract: Discussed is a nanocapsule liquid crystal display device. The nanocapsule liquid crystal display device according to an embodiment includes a substrate; a pixel electrode and a common electrode on the substrate; a first polarization plate disposed under the substrate and including a first polarization layer; and a second polarization plate contacting at least one of the pixel electrode and the common electrode and including a second polarization layer and a nanocapsule liquid crystal layer between the second polarization layer and the substrate.Type: GrantFiled: August 25, 2015Date of Patent: January 1, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Ji-Na Jeon, Kyeong-Jin Kim, Jung-Im Hwang, Min-Geon Choi, Kyung-Su Ha
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Patent number: 10162206Abstract: Provided herewith is a liquid crystal display device comprising a substrate; first and second electrodes on a first surface of the substrate, the first and second electrodes being spaced apart from each other; a liquid crystal capsule layer on the first and second electrodes; and a dielectric layer on the liquid crystal capsule layer. In this liquid crystal display device the dielectric constant of the dielectric layer is lower than the dielectric constant of the liquid crystal capsule layer.Type: GrantFiled: November 29, 2016Date of Patent: December 25, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Min-Geon Choi, Kyeong-Jin Kim, Kyung-Su Ha
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Publication number: 20180299712Abstract: A liquid crystal capsule includes: a shell; and a liquid crystal molecule in the shell, wherein a critical surface tension of the shell is smaller than a critical surface tension of the liquid crystal molecule. Further, the liquid crystal molecule includes a nematic liquid crystal and the shell includes polytetramethyldisiloxane. The liquid crystal capsule also includes an additive in the shell and the additive has a critical surface tension smaller than that of the liquid crystal molecule.Type: ApplicationFiled: March 28, 2018Publication date: October 18, 2018Applicant: LG Display Co., Ltd.Inventors: Kyeong-Jin KIM, Ji-Na JEON
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Publication number: 20180284287Abstract: A positioning system for global navigational satellite system (GNSS) includes a first receiver to measure a first carrier phase of a carrier signal emitted by a satellite and a second receiver to measure a second carrier phase of the carrier signal emitted by the satellite. The, first carrier phase includes a first carrier phase ambiguity as an unknown integer number of wavelengths of the carrier signal travelled between the satellite and the first receiver. Similarly, the second carrier phase includes a second carrier phase ambiguity as an unknown integer number of wavelengths of the carrier signal travelled between the satellite and the second receiver.Type: ApplicationFiled: March 30, 2017Publication date: October 4, 2018Inventors: Kyeong Jin Kim, Dongyang Xu, Philip Orlik
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Patent number: 10061149Abstract: Disclosed is a nanocapsule liquid crystal display device. The display includes a liquid crystal panel having a substrate and a nanocapsule liquid crystal layer over the substrate; a first polarizing plate on an outer surface of the substrate and including a first polarizing layer; and a second polarizing plate directly on an outer surface of the nanocapsule liquid crystal layer and including a second polarizing layer and a phase difference layer, wherein a retardation of the nanocapsule liquid crystal layer is compensated by the phase difference layer.Type: GrantFiled: June 26, 2015Date of Patent: August 28, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Ji-Na Jeon, Kyeong-Jin Kim, Min-Geon Choi
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Patent number: 10063306Abstract: Systems and methods for a communication system including a set of transmitters, wherein operations of the set of transmitters are synchronized with an accuracy bound by a synchronization error. A controller communicatively connected to each transmitter in the set of transmitters, wherein the controller is configured to: determine a tap delay for a communication channel between a receiver and each transmitter in the set of transmitters to produce a set of tap delays. Determine a minimal length of a cyclic prefix as a function of a sum of the synchronization error and a maximal tap delay in the set of tap delays. Finally, controls at least some transmitters in the set of transmitters to transmit a message to the receiver using a cyclic delay diversity (CDD) with the cyclic prefix having at least the minimal length.Type: GrantFiled: October 24, 2016Date of Patent: August 28, 2018Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Kyeong Jin Kim, Philip Orlik
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Patent number: 10018867Abstract: A nano capsule liquid crystal layer and a liquid crystal display having the same are provided. The nano capsule liquid crystal layer includes a buffer layer and a plurality of nano capsules disposed in the buffer layer. An inside of each of the nano capsules includes liquid crystal molecules, and additives each having a center molecule and at least two first peripheral molecules connected to the center molecule and spaced apart from each other, and that are mixed with the liquid crystal molecules. The first peripheral molecules have a same phase as the liquid crystal molecule.Type: GrantFiled: November 28, 2016Date of Patent: July 10, 2018Assignee: LG Display Co., Ltd.Inventors: Kyung-Su Ha, Kyeong-Jin Kim, Ji-Na Jeon
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Patent number: 9971184Abstract: Discussed is a liquid crystal display device that includes a substrate having a pixel electrode and a common electrode formed thereon, a first polarizing plate on a bottom surface of the substrate, and having a polarizing axis of a first direction, a nanocapsule liquid crystal layer on the pixel electrode and the common electrode, and including a buffer layer and nanocapsules, each nanocapsules being filled with liquid crystal molecules, being oil-soluble, and being dispersed in the buffer layer, and a second polarizing plate on the nanocapsule liquid crystal layer, and having a polarizing axis of a second direction perpendicular to the first direction.Type: GrantFiled: December 22, 2015Date of Patent: May 15, 2018Assignees: LG DISPLAY CO., LTD., IMAGELAB CO., LTD.Inventors: Kyeong-Jin Kim, Min-Geun Choi, Kyung-Su Ha, Hyun-Ha Hwang, Seung-Gon Kang
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Publication number: 20180115359Abstract: Systems and methods for a communication system including a set of transmitters, wherein operations of the set of transmitters are synchronized with an accuracy bound by a synchronization error. A controller communicatively connected to each transmitter in the set of transmitters, wherein the controller is configured to: determine a tap delay for a communication channel between a receiver and each transmitter in the set of transmitters to produce a set of tap delays. Determine a minimal length of a cyclic prefix as a function of a sum of the synchronization error and a maximal tap delay in the set of tap delays. Finally, controls at least some transmitters in the set of transmitters to transmit a message to the receiver using a cyclic delay diversity (CDD) with the cyclic prefix having at least the minimal length.Type: ApplicationFiled: October 24, 2016Publication date: April 26, 2018Applicant: Mitsubishi Electric Research Laboratories, Inc.Inventors: Kyeong Jin Kim, Philip Orlik
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Patent number: 9948377Abstract: A transmitter includes a plurality of antennas for beamforming with different angles of departure (AoD), an information interface to receive a sequence of symbols including a first symbol and a second symbol and a modulator to cause the plurality of antennas to form a transmission beam with an AoD selected according to a value of the first symbol and modulated according to a value of the second symbol.Type: GrantFiled: February 6, 2017Date of Patent: April 17, 2018Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Kyeong Jin Kim, Yacong Ding, Toshiaki Koike-Akino, Milutin Pajovic, Philip Orlik
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Publication number: 20170315388Abstract: A liquid crystal display device includes: a substrate; a thin film transistor in a pixel region over the substrate; a common electrode over the thin film transistor; a pixel electrode connected to the thin film transistor; and a liquid crystal layer including a plurality of liquid crystal capsules over the common electrode and the pixel electrode, wherein each of the plurality of liquid crystal capsules includes a shell and a core having a plurality of liquid crystal molecules therein, and wherein a gap distance between the liquid crystal molecules in adjacent liquid crystal capsules is equal to or greater than 20 nm and equal to or smaller than 0.3 times of a capsule diameter of the adjacent liquid crystal capsules.Type: ApplicationFiled: April 28, 2017Publication date: November 2, 2017Applicant: LG DISPLAY CO., LTD.Inventors: Kyeong-Jin KIM, Kyung-Su HA, Eun-Woo LEE
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Publication number: 20170307917Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: ApplicationFiled: July 10, 2017Publication date: October 26, 2017Inventors: Kyeong-Jin KIM, Jung-Im HWANG, Ji-Na JEON, Kyung-Su HA, Min-Geun CHOI
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Patent number: 9759943Abstract: Disclosed is a liquid crystal display device that may include a first substrate; a first electrode on the first substrate, the first electrode including a plurality of first inclined planes; a nanocapsule liquid crystal layer on the first electrode, the nanocapsule liquid crystal layer including a plurality of nano-sized capsules dispersed in a buffer layer, each of the plurality of nano-sized capsules including nematic liquid crystal molecules having a negative dielectric constant anisotropy; and a second electrode on the nanocapsule liquid crystal layer, the second electrode including a plurality of second inclined planes facing the plurality of first inclined planes, wherein the nanocapsule liquid crystal layer is substantially, optically isotropic in a normal state, and is optically anisotropic when a voltage is applied to the first and second electrodes.Type: GrantFiled: November 23, 2016Date of Patent: September 12, 2017Assignee: LG DISPLAY CO, LTD.Inventors: Kyeong-Jin Kim, Jung-Im Hwang, Ji-Na Jeon, Kyung-Su Ha, Min-Geun Choi
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Publication number: 20170254901Abstract: A method and system determines a reference receiver for carrier phase differencing in a global navigation satellite system by first receiving measurements from at least five satellites at a set of antennas of a set of receivers. Right-hand circular polarization is applied at a first subset of antennas of a first subset of receivers and left-hand circular polarization is applied at a second subset of the antennas of a second subset of receivers to produce first and second phase lock loop (PLL) outputs. Line-of-sight and non-line-of-sight detection are applied to the first and second PLL outputs to indicate a presence of multipath. Then, whether or not the first subset of receivers are affected by multipath and polarization changing impairments are output, and carrier phase double differencing is performed using carrier phase measurements to indicate which receiver is used as a reference receiver for the carrier phase double differencing.Type: ApplicationFiled: March 7, 2016Publication date: September 7, 2017Applicant: Mitsubishi Electric Research Laboratories, Inc.Inventor: Kyeong Jin Kim
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Patent number: 9716536Abstract: The data are communicated from a transmitter to a receiver in a wireless communications network. Data symbols are modulated using a coded modulation to produce modulated symbols and the modulated symbols are precoded using a precoder matrix to produce precoded symbols. The precoder matrix is formed using a rotation matrix including phase angles for at least some elements of the rotation matrix with values determined according to a parametric function of indices of the elements storing the phase angles. Next, the data packets are formed using the precoded symbols and the data packets are transmitted over the wireless network. Multi-stage parametric phase precoding provides full-diversity and full-rate transmissions by using fast-transformable unitary matrices and deterministic diagonal phase rotation, whose phase angles are pre-determined to minimize the union bound for time-selective and frequency-selective fading channels.Type: GrantFiled: March 19, 2015Date of Patent: July 25, 2017Assignee: Mitsubishi Electric Research Laboratories, Inc.Inventors: Toshiaki Koike-Akino, Philip Orlik, Kyeong Jin Kim
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Publication number: 20170192265Abstract: A nano capsule liquid crystal layer and a liquid crystal display having the same are provided. The nano capsule liquid crystal layer includes a buffer layer and a plurality of nano capsules disposed in the buffer layer. An inside of each of the nano capsules includes liquid crystal molecules, and additives each having a center molecule and at least two first peripheral molecules connected to the center molecule and spaced apart from each other, and that are mixed with the liquid crystal molecules. The first peripheral molecules have a same phase as the liquid crystal molecule.Type: ApplicationFiled: November 28, 2016Publication date: July 6, 2017Applicant: LG Display Co., Ltd.Inventors: Kyung-Su HA, Kyeong-Jin KIM, Ji-Na JEON