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公开(公告)号：US20220263352A1
公开(公告)日：2022-08-18
申请号：US17735744
申请日：2022-05-03
Applicant: LG ELECTRONICS INC.
Inventor： Jinho YOUN , Taewook KWON , Jaeyeol KIM , Hyoungseok KIM , Dohyeon SON
Abstract: The present disclosure relates to a method and a device for transmitting data in a wireless power transmission system. The method for transmitting data by a wireless power transmitter in a wireless power transmission system may comprise the steps of: receiving from a wireless power receiver, within a first control error interval, a first control error packet containing a control error value with respect to power transmitted from the wireless power transmitter; determining the size of a first data packet on the basis of the length of the first control error interval; and transmitting the first data packet to the wireless power receiver.
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公开(公告)号：US20180056589A1
公开(公告)日：2018-03-01
申请号：US15557915
申请日：2015-06-03
Applicant: LG ELECTRONICS INC.
Inventor： Hyoungseok KIM , Kyujin CHOI
IPC: B29C64/393 , B29C64/277 , B29C64/129 , B33Y30/00 , B33Y50/02
CPC classification number: B29C64/393 , B29C64/129 , B29C64/277 , B33Y30/00 , B33Y50/02
Abstract: Provided is a 3D printer. The 3D printer includes a material casing accommodating a modeling material for modeling a 3D model, a light source unit supplying light onto the modeling material to cure the modeling material, a stage on which the modeling material cured by the light source unit is seated, the stage being disposed movable into the material casing, a stage driving unit connected to the stage to provide a driving force for moving the stage, and a control unit controlling operations of the light source unit and the stage driving unit. The light source unit is provided as an LED assembly for surface-illustrating light onto the modeling material.
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公开(公告)号：US20240372400A1
公开(公告)日：2024-11-07
申请号：US18280442
申请日：2022-03-07
Applicant: LG Electronics Inc.
Inventor： Kyunghwan KIM , Seonghun LEE , Hyoungseok KIM , Euisuk CHOI
Abstract: A wireless power transfer device transmits wireless power to a wireless power reception device and comprises primary coils, transmitting wireless power by magnetically coupling to secondary coils of the wireless power reception device, and a shield protecting the wireless power transfer device from a magnetic field from at least one of the primary coils. The primary coils comprise: a first bottom coil and a second bottom coil not overlapping each other on a first plane; and a first top coil and a second top coil not overlapping each other on a second plane located above the first plane, wherein one side of the first top coil is located above the first bottom coil, the other side of the first top coil is located above the second bottom coil, and one side of the second top coil is located above the second bottom coil.
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公开(公告)号：US20220247230A1
公开(公告)日：2022-08-04
申请号：US17597790
申请日：2020-07-27
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Gyunghwan YOOK , Hyoungseok KIM , Hwanyong KIM
Abstract: A wireless power reception apparatus according to an embodiment of the present specification comprises: a power pickup circuit for receiving, by magnetic coupling to a wireless power transmission apparatus, wireless power from the wireless power transmission apparatus; and a communication/control circuit for communicating with the wireless power transmission apparatus and controlling the received wireless power, wherein the communication/control circuit transmits, before entering a power transmission phase, to the wireless power transmission apparatus, information regarding a first reference quality factor Qt1′(ref) measured at a first frequency f1(ref) and information regarding a second reference quality factor Qt2′(ref) measured at a second frequency f2(ref).
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公开(公告)号：US20230283119A1
公开(公告)日：2023-09-07
申请号：US18016585
申请日：2020-07-17
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Seonghun LEE , Taewook KWON , Hyoungseok KIM , Hongkwon KIM
Abstract: A wireless power transmission apparatus includes a shielding plate, a transmission coil on the shielding plate, and a shielding member disposed on the shielding plate and configured to surround the transmission coil. The shielding plate may shield a magnetic field formed to a lower side of the transmission coil. The shield member can offset the magnetic field formed on the side of the transmission coil. Thus, the embodiment can minimize EMI or EMF caused by the magnetic field formed on the lower side and the side of the transmission coil.
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Patent Agency Ranking
公开(公告)号：US20230163641A1
公开(公告)日：2023-05-25
申请号：US18153091
申请日：2023-01-11
Applicant: LG ELECTRONICS INC.
Inventor： Jinho YOUN , Taewook KWON , Jaeyeol KIM , Hyoungseok KIM , Dohyeon SON
CPC classification number: H02J50/80 , H02J50/40 , G06F11/004
Abstract: The present disclosure relates to a method and a device for transmitting data in a wireless power transmission system. The method for transmitting data by a wireless power transmitter in a wireless power transmission system may comprise the steps of: receiving from a wireless power receiver, within a first control error interval, a first control error packet containing a control error value with respect to power transmitted from the wireless power transmitter; determining the size of a first data packet on the basis of the length of the first control error interval; and transmitting the first data packet to the wireless power receiver.
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公开(公告)号：US20210344235A1
公开(公告)日：2021-11-04
申请号：US17280503
申请日：2019-07-11
Applicant: LG ELECTRONICS INC.
Inventor： Jinho YOUN , Taewook KWON , Jaeyeol KIM , Hyoungseok KIM , Dohyeon SON
Abstract: The present disclosure relates to a method and a device for transmitting data in a wireless power transmission system. The method for transmitting data by a wireless power transmitter in a wireless power transmission system may comprise the steps of: receiving from a wireless power receiver, within a first control error interval, a first control error packet containing a control error value with respect to power transmitted from the wireless power transmitter; determining the size of a first data packet on the basis of the length of the first control error interval; and transmitting the first data packet to the wireless power receiver.
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公开(公告)号：US20210320745A1
公开(公告)日：2021-10-14
申请号：US17272768
申请日：2019-09-03
Applicant: LG ELECTRONICS INC.
Inventor： Jaeyeol KIM , Hyoungseok KIM , Yongcheol PARK , Dohyeon SON , Jinho YOUN , Seonghun LEE
Abstract: The present disclosure relates to an apparatus and a method for supporting an improved communication speed in a wireless power transmission system. In such present specification, provided is the method comprising the steps of: transmitting at least one data packet to a wireless power reception apparatus; receiving, from the wireless power reception apparatus, a first request packet requesting a change in a communication speed of the wireless power transmission apparatus; and changing the communication speed of the wireless power transmission apparatus on the basis of the first request packet, and transmitting, at the changed communication speed, a first response packet in response to the first request packet to the wireless power reception apparatus.
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公开(公告)号：US20190207411A1
公开(公告)日：2019-07-04
申请号：US16325540
申请日：2016-12-16
Applicant: LG ELECTRONICS INC.
Inventor： Hyoungseok KIM , Jeongkyo SEO , Jinmoo PARK , Beomseok CHAE
Abstract: According to one embodiment of the present invention, a wireless power transmitter for transferring power to a wireless power receiver, the wireless power transmitter includes a coil assembly including a plurality of coils, a power conversion unit configured to convert an input direct current (DC) into an alternating current (AC) for driving the coil assembly, and a communication/control unit configured to communicate with the wireless power receiver and control an amount of power to be transferred to the wireless power receiver using the coil assembly, wherein the plurality of coils are arranged in first and second directions, wherein each of the plurality of coils has a substantially rectangular frame structure having a through hole at a center, and is arranged so that at least portion of the each coil overlaps, in a plane, with a neighboring coil in the first and second directions.
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公开(公告)号：US20160046081A1
公开(公告)日：2016-02-18
申请号：US14826008
申请日：2015-08-13
Applicant: LG ELECTRONICS INC.
Inventor： Hyoungseok KIM , Kyujin CHOI
CPC classification number: B29C47/92 , B29C47/0014 , B29C64/106 , B29C64/20 , B29C64/386 , B33Y30/00 , B33Y50/02
Abstract: A 3-dimensional (3D) printer is disclosed. The 3D printer includes an extruder to extrude a filament into a cavity, a carriage to support the extruder, a moving unit to move the carriage, and a processor to control the extruder and the moving unit. The extruder includes a filament feeder to downwardly feed the filament, a heating unit to heat the filament fed by the filament feeder, a nozzle to output the heated filament into the cavity, a cooling unit to cool the filament feeder, to decrease heat transferred from the heating unit to the filament feeder, a first temperature sensor to sense a temperature of the heating unit, and a second temperature sensor to sense a temperature of the cooling unit. The processor controls the heating unit and the cooling unit, based on the first temperature sensor and the second temperature sensor, to enhance output speed of the filament.
Abstract translation: 公开了一种三维（3D）打印机。 3D打印机包括将细丝挤出到空腔中的挤出机，用于支撑挤出机的托架，移动滑架的移动单元以及控制挤出机和移动单元的处理器。 挤出机包括向下供给细丝的细丝进料器，用于加热由细丝进料器供料的细丝的加热单元，将加热的细丝输出到空腔中的喷嘴，用于冷却细丝进料器的冷却单元，以减少从 加热单元到细丝进料器，用于感测加热单元的温度的第一温度传感器和用于感测冷却单元的温度的第二温度传感器。 处理器基于第一温度传感器和第二温度传感器控制加热单元和冷却单元，以增强灯丝的输出速度。
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