公开(公告)号：US20190036379A1

公开(公告)日：2019-01-31

申请号：US15986429

申请日：2018-05-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seong-Min KIM ,  Sang-Won KIM ,  Jung Ick MOON ,  In Kui CHO ,  Je Hoon YUN ,  Dong Won JANG

IPC: H02J50/12

CPC classification number: H02J50/12

Abstract: Disclosed is a wireless power receiving apparatus capable of controlling an effective load resistance. The wireless power receiving apparatus may include a rectifier configured to generate a rectified voltage based on a magnetic field generated in a wireless power transmitting apparatus, and a controller configured to transmit, to the rectifier, a control signal for controlling a rectified phase of the rectifier to adjust an effective load resistance of the wireless power receiving apparatus.

公开(公告)号：US20170201126A1

公开(公告)日：2017-07-13

申请号：US15240043

申请日：2016-08-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Duk Ju AHN ,  In Kui CHO ,  Seong Min KIM ,  Jung Ick MOON ,  Sang Bong JEON ,  Byung Chan KIM ,  Je Hoon YUN ,  Dong Won JANG ,  Hyung Do CHOI

IPC: H02J50/12 ,  H02J50/80

CPC classification number: H02J50/12 ,  H02J50/80

Abstract: The wireless power reception apparatus includes: a duty controller configured to calculate an amount of current of a transmission coil required for the wireless power transmission apparatus and control a duty cycle by using at least one of distance information between the wireless power transmission apparatus and the wireless power reception apparatus or load current information; a power converter configured to convert an effective load resistance according to the duty cycle; a wireless data transmitter configured to transmit a signal that requires a control of the calculated amount of current of the transmission coil to the wireless power transmission apparatus; and a reception resonator configured to receive a power according to the amount of current of the transmission coil controlled by the signal that requires a control of the amount of current of the transmission coil from the wireless power transmission apparatus.

公开(公告)号：US20150311728A1

公开(公告)日：2015-10-29

申请号：US14696562

申请日：2015-04-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Je Hoon YUN ,  Seong Min KIM ,  Jung Ick MOON ,  In Kui CHO

IPC: H02J5/00 ,  H03F3/19

CPC classification number: H02J5/005 ,  H01F38/14 ,  H02J7/025 ,  H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90

Abstract: Provided are wireless power transmitting method and apparatus using dual-loop in-phase feeding. The wireless power transmitting apparatus includes a generator configured to generate a Radio Frequency (RF) signal, an amplifier configured to amplify the generated RF signal, a matching circuit configured to be connected to the amplifier to perform impedance matching, a first resonator configured to comprise a first feeding loop connected to the matching circuit and transmit wireless power using a signal provided through the first feeding loop, and a second resonator configured to comprise a second feeding loop connected to the matching circuit and transmit wireless power using a signal provided through the second feeding loop, wherein the first and second feeding loops are formed in a manner that allows magnetic fields respectively generated by the first and second resonators to be excited in the same direction and in phase.

Abstract translation: 提供了使用双回路同相馈送的无线电力传输方法和装置。 无线电力发送装置包括：发生器，被配置为产生射频（RF）信号;放大器，被配置为放大所产生的RF信号;匹配电路，被配置为连接到所述放大器以执行阻抗匹配;第一谐振器，被配置为包括 连接到所述匹配电路并使用通过所述第一馈送环路提供的信号来发射无线电力的第一馈电环路，以及第二谐振器，其被配置为包括连接到所述匹配电路的第二馈电环路，并且使用通过所述第二馈送环路提供的信号来发射无线电力 其中第一和第二馈电回路以允许由第一和第二谐振器分别产生的磁场在相同方向和相位上被激励的方式形成。

公开(公告)号：US20150108850A1

公开(公告)日：2015-04-23

申请号：US14483382

申请日：2014-09-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： In Kui CHO ,  Seong Min KIM ,  Jung Ick MOON ,  Je Hoon YUN

IPC: H02J17/00

CPC classification number: H02J50/12 ,  H02J17/00 ,  H02J50/50 ,  H02J50/90

Abstract: Provided is a wireless power transmission method and apparatus for improving spectrum efficiency and space efficiency based on impedance matching and relay resonance, the method including detecting an input impedance at a resonant frequency, matching a transmitting port impedance to a real number value of the detected input impedance, and transmitting power to a receiving resonator smaller than a transmitting resonator using the relay resonator.

Abstract translation: 提供了一种用于基于阻抗匹配和中继谐振来提高频谱效率和空间效率的无线电力传输方法和装置，该方法包括：检测谐振频率的输入阻抗，将发送端口阻抗与检测输入的实数值相匹配 阻抗，并且使用该继电器谐振器向接收谐振器发射功率小于发射谐振器。

公开(公告)号：US20240257489A1

公开(公告)日：2024-08-01

申请号：US18348106

申请日：2023-07-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gwangzeen KO ,  Sang-Won KIM ,  Seong-Min KIM ,  Jung Ick MOON ,  In Kui CHO

IPC: G06V10/25 ,  G06V20/52

CPC classification number: G06V10/25 ,  G06V20/52

Abstract: The present disclosure relates to an image processing method for a multi-dimensional region of interest (ROI) in a wireless charging system. More specifically, the method includes determining whether a surveillance target exists in the multi-dimensional ROI by performing, regarding the surveillance target, the process of removing a false-alarm region and including an excluded ROI.

公开(公告)号：US20240153689A1

公开(公告)日：2024-05-09

申请号：US18500820

申请日：2023-11-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Je Hoon YUN ,  Gwangzeen KO ,  Seong-Min KIM ,  Jung Ick MOON ,  Seung Keun PARK ,  Dong-won JANG ,  In Kui CHO

IPC: H01F5/04 ,  H01F27/28 ,  H01F38/14

CPC classification number: H01F5/04 ,  H01F27/2852 ,  H01F38/14 ,  H01F2005/006

Abstract: A resonant coil coupled with an electromagnetic field is disclosed. A Fraunhofer resonant coil includes an upper spiral element and a lower spiral element, an upper conical element connected to the upper spiral element and including one or more layers formed of a plurality of plies, a lower conical element connected to the lower spiral element and including one or more layers formed of a plurality of plies, and a feeding device connected to a gap between the upper conical element and the lower conical element and configured to supply power.

公开(公告)号：US20230352977A1

公开(公告)日：2023-11-02

申请号：US18103940

申请日：2023-01-31

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Ick MOON ,  Gwangzeen KO ,  Sang-Won KIM ,  Seong-Min KIM ,  In Kui CHO

IPC: H02J50/12 ,  H02J50/40

CPC classification number: H02J50/12 ,  H02J50/40

Abstract: Provided is a method of wirelessly transmitting power and a device for performing the method. The wireless power transmission device includes a transmission coil configured to wirelessly transmit power to at least one of a plurality of receivers according to a transmission frequency and a processor configured to control at least one of the transmission frequency or resonant frequencies of the plurality of receivers, and the processor is configured to set the resonant frequencies of the plurality of receivers differently based on the transmission frequency at which the wireless power transmission device wirelessly transmits power, determine a transmission amount of power to be wirelessly transmitted to each of the plurality of receivers, and change at least one of the transmission frequency or the resonant frequencies of the plurality of receivers based on the transmission amount.

公开(公告)号：US20230335889A1

公开(公告)日：2023-10-19

申请号：US18090112

申请日：2022-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seong Min KIM ,  Sang Won KIM ,  Jung Ick MOON ,  Je Hoon YUN ,  In Kui CHO ,  Gwang Zeen KO

IPC: H01Q1/28 ,  H02J50/00 ,  H02J50/20 ,  H02J7/00 ,  B60L53/12 ,  B64C39/02 ,  B64U70/90 ,  G05D1/04 ,  B64U20/80 ,  B60L53/36 ,  B64U50/38 ,  B60L53/30 ,  B60L53/38 ,  B60L53/62 ,  H01Q1/10 ,  H01Q7/00

CPC classification number: H01Q1/28 ,  H02J50/005 ,  H02J50/20 ,  H02J7/0048 ,  B60L53/12 ,  B64C39/024 ,  B64U70/90 ,  G05D1/042 ,  B64U20/80 ,  B60L53/36 ,  B64U50/38 ,  B60L53/30 ,  B60L53/38 ,  B60L53/62 ,  H01Q1/10 ,  H01Q7/00 ,  B60L2200/10

Abstract: An antenna for charging and measurement may comprise: a telescopic support installed at a lower portion of an aerial vehicle and configured to contract when the aerial vehicle lands on a wireless station and extend when the aerial vehicle takes off from the wireless station; and an antenna coil part deformed into a spiral shape when the telescopic support is contracted so that the wireless station receives wireless power and deformed into a conical shape when the telescopic support is extended to measure a radio signal.

公开(公告)号：US20220360295A1

公开(公告)日：2022-11-10

申请号：US17734286

申请日：2022-05-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： In Kui CHO ,  Jang Yeol KIM ,  Jung Hoon OH ,  Jae Woo LEE ,  Jae Ho LEE ,  Hyun Joon LEE ,  Sang Won KIM ,  Seong Min KIM ,  Jung Ick MOON ,  Woo Jin BYUN ,  Je Hoon YUN

IPC: H04B5/00

Abstract: An antenna device for magnetic field communication may include: a first coil; a second coil; a third coil; a first capacitor connected to a 1-1 terminal of the first coil; a second capacitor connected to a 2-1 terminal of the second coil; a third capacitor connected to a 3-1 terminal of the third coil; and an input port including a first input terminal connected to a 1-2 terminal of the first coil, a 2-2 terminal of the second coil, and a 3-2 terminal of the third coil, and a second input terminal connected to the first capacitor, the second capacitor, and the third capacitor.

公开(公告)号：US20220200662A1

公开(公告)日：2022-06-23

申请号：US17553466

申请日：2021-12-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Korea Advanced Institute of Science and Technology

Inventor： Jang Yeol KIM ,  Jaewoo LEE ,  HYUNJOON LEE ,  In Kui CHO ,  Sang-Won KIM ,  Seong-Min KIM ,  Jung Ick MOON ,  Je Hoon YUN ,  Dong Won JANG ,  Seunghun RYU ,  Seungyoung AHN

IPC: H04B5/00

Abstract: A magnetic field communication method and apparatus using a giant magnetoimpedance (GMI) magnetometer are disclosed. The magnetic field communication apparatus includes a GMI magnetometer configured to detect a first communication signal based on a received magnetic field signal, a first signal extractor configured to extract a second communication signal comprising a message signal from the first communication signal, a second signal extractor configured to extract a third communication signal by removing a magnetization frequency signal from the second communication signal, and a third signal extractor configured to extract the message signal by removing a carrier wave frequency signal from the third communication signal.