公开(公告)号：US09362783B2

公开(公告)日：2016-06-07

申请号：US14192508

申请日：2014-02-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Q Lee ,  Gunn Hwang ,  WooSub Youm

IPC: H04B1/06 ,  H02J17/00

CPC classification number: H02J50/15 ,  H02J7/025 ,  H02J17/00 ,  H02J50/90

Abstract: Provided is a wireless power transmission apparatus. The apparatus includes an ultrasound transmitter generating an ultrasound signal in response to an external source voltage and transmitting the generated ultrasound signal to a medium layer and an ultrasound receiver receiving the ultrasound signal through the medium layer and converting the received ultrasound signal into a driving voltage. The ultrasound transmitter and receiver are manufactured to control impedance values thereof to be matched with each other and a distance between the ultrasound transmitter and receiver is controlled according to predetermined distance conditions.

Abstract translation: 提供一种无线电力传输装置。 该装置包括：超声波发射器，响应于外部源电压产生超声信号，并将产生的超声信号传输到介质层;以及超声波接收器，通过介质层接收超声波信号，并将接收到的超声信号转换为驱动电压。 制造超声波发射器和接收器以控制其阻抗值彼此匹配，并且根据预定距离条件来控制超声波发射器和接收器之间的距离。

公开(公告)号：US09093633B2

公开(公告)日：2015-07-28

申请号：US13937125

申请日：2013-07-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Gunn Hwang ,  WooSub Youm ,  Sung Q Lee

IPC: H01L41/113 ,  H01L41/047 ,  H01L41/18 ,  H02N2/18

CPC classification number: H01L41/047 ,  H01L41/0475 ,  H01L41/113 ,  H01L41/183 ,  H02N2/18

Abstract: Provided is an ultrasonic apparatus. The ultrasonic apparatus may include a charging device, a circuit device electrically connected to the charging device, and a housing part for packaging the charging device and the circuit device. Here, the charging device may include a lower electrode, an upper electrode provided on the lower electrode, a plurality of pillar-shaped piezoelectric composites provided between the lower and upper electrodes, and an electrolyte layer provided between the lower and upper electrodes to fill spaces between the pillar-shaped piezoelectric composites.

Abstract translation: 提供了一种超声波装置。 超声波装置可以包括充电装置，电连接到充电装置的电路装置和用于封装充电装置和电路装置的壳体部分。 这里，充电装置可以包括下电极，设置在下电极上的上电极，设置在下电极和上电极之间的多个柱状压电复合体，以及设置在下电极和上电极之间以填充空间的电解质层 柱状压电复合材料之间。

公开(公告)号：US10008888B2

公开(公告)日：2018-06-26

申请号：US14335822

申请日：2014-07-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： WooSub Youm ,  Sung Q Lee ,  Gunn Hwang

IPC: H02J7/02 ,  H02J7/00 ,  H02J50/80 ,  H02J7/04 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/15

CPC classification number: H02J50/80 ,  H02J7/025 ,  H02J7/042 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/15 ,  H02J2007/0037

Abstract: Provided is a wireless power transmission system. The wireless power transmission system includes a power supply unit generating amplified power; a wireless power transmission unit receiving and converting the amplified power into wireless power; a wireless power reception unit receiving and converting the wireless power into charging power; and a charging unit receiving the charging power, wherein the charging unit includes a battery to store the charging power and the power supply unit includes a power detection unit identifies the charged state of the battery based on the amplified voltage and amplified current of the amplified power.

公开(公告)号：US10390756B2

公开(公告)日：2019-08-27

申请号：US15424477

申请日：2017-02-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： WooSub Youm ,  Sung Q Lee ,  Gunn Hwang

IPC: A61N1/20 ,  A61B5/00 ,  A61N1/36 ,  A61B5/0476 ,  A61B5/0402 ,  A61B5/0488 ,  A61B5/0496

Abstract: The circuit may include bio-stimulating signal generating circuit which generates a bio-stimulating signal in a bio-stimulating mode, a bio-signal electrode which delivers the bio-stimulating signal generated in the bio-stimulating mode and receives a bio-signal in a bio-signal measuring mode, a switch block which is turned on when a voltage of the bio-stimulating signal is greater than a first reference voltage which is greater than a second reference voltage or lower than the second reference voltage, first and second resistors, and a bio-signal measuring circuit which measures voltage signals divided by the first and second resistors or measures a signal of the bio-signal electrode according to whether the switch block is turned on. The first and second resistors may be serially connected between the bio-signal electrode and the switch block, and divide a voltage of a signal of the bio-signal electrode when the switch block is turned on.

公开(公告)号：US10078069B2

公开(公告)日：2018-09-18

申请号：US14949628

申请日：2015-11-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Gunn Hwang ,  Sung Q Lee ,  WooSub Youm

IPC: G01N29/02 ,  E21B47/10 ,  G01N29/024 ,  G01M3/24 ,  G01N29/07 ,  F17D5/06

CPC classification number: G01N29/024 ,  E21B47/101 ,  E21B47/102 ,  F16L2201/30 ,  F17D5/06 ,  G01M3/24 ,  G01N29/07 ,  G01N2291/011

Abstract: The inventive concept relates to a device that detects a leak of a liquid leaked from a sinkhole, water pipe or oil pipeline under the ground. In the detection device of the inventive concept, a plurality of reception devices disposed on the surface of the earth simultaneously receive an ultrasonic signal transmitted from a transmission device under the ground and a radio frequency (RF) signal synchronized with the ultrasonic signal. Also, by measuring an arrival time of the ultrasonic signal by using the wireless signal received by each reception device as a triggering signal, a leak range of a liquid leaked from a sinkhole, water pipe or oil pipeline on a signal path between the transmission device and the reception device is detected.