公开(公告)号：US11057605B2

公开(公告)日：2021-07-06

申请号：US16713417

申请日：2019-12-13

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Jungwook Wee ,  Woochool Park

IPC: H04N13/194 ,  H04N13/178 ,  H04N13/161 ,  H04N13/00

Abstract: A 360-degree virtual reality (VR) video segmentation transmission system and a method are disclosed. The system includes a transmitter and a receiver. The transmitter designs a frame for transmitting a 360-degree VR video divided into multiple channels, based on a motion picture expert group (MPEG) transport stream (TS), and transmits a signal combining the designed frame and a header for each of the multiple channels. The receiver receives the signal from the transmitter for each channel, combines contents contained in the received signal through synchronization, and outputs the combined contents.

公开(公告)号：US20210168720A1

公开(公告)日：2021-06-03

申请号：US16727339

申请日：2019-12-26

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yongju PARK ,  Younghan KIM ,  Hyunseuk AHN ,  Changseok YUN ,  Seungok LIM ,  Yongseok LIM

IPC: H04W52/02 ,  H04L27/04

Abstract: The present disclosure provides communications apparatus and method using an On-off keying (OOK) modulation based low power wake-up protocol suitable for use in IoT devices. The communication method according to an exemplary embodiment includes: transmitting, by a main radio module of a master device, an OOK modulated wake-up radio signal by using a narrow frequency band between an ISM band and a guard band in the ISM band; receiving, by a low power wake-up radio module of a slave device, the wake-up radio signal and to demodulate according to an OOK modulation scheme and awaken a controller of the slave device in a sleep mode; and after the controller wakes up from the sleep mode, transmitting data to be transmitted to the master device, by the controller of the slave device, through the main radio module.

公开(公告)号：US20210152158A1

公开(公告)日：2021-05-20

申请号：US17092843

申请日：2020-11-09

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Dongmyoung JOO ,  Junhyuk CHOI ,  Joonsung PARK ,  Jinhong KIM ,  Byongjo HYON ,  Yongsu NOH

IPC: H03K3/012

Abstract: This application relates to a wide band gap (WBG) power semiconductor system. In one aspect, the system includes a controller configured to generate a switching control signal and a gate driver configured to receive the switching control signal and generate a switching drive signal in response to the switching control signal. The system also includes a WBG power semiconductor device coupled to the gate driver, comprising a gate terminal for receiving the switching drive signal, and configured to be switched in response to the switching drive signal. The switching drive signal has one of three signal levels: a first voltage level higher than a zero voltage level, a second voltage level lower than the zero voltage level, and the zero voltage level at an arbitrary instant. As a result, the gate driver drives the WBG power semiconductor device with the three voltage levels.

公开(公告)号：US10996848B2

公开(公告)日：2021-05-04

申请号：US16789326

申请日：2020-02-12

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Kunnyun Kim ,  Yeonhwa Kwak ,  Won Hyo Kim ,  Kwang Bum Park

IPC: G06F3/048 ,  G06F3/0488 ,  G06F1/16 ,  G04C3/00 ,  G06F3/023 ,  G06F3/0354 ,  G04G21/08 ,  G06F3/0482

Abstract: The described technology relates to a wearable electronic device. The wearable electronic device may include a touch display, a rim surrounding the touch display, a rim touch sensor disposed on at least a portion of the rim, a band portion that allows the wearable electronic device to be worn on a user's wrist, and a control unit configured to receive a rim touch on the rim through the rim touch sensor and generate a control signal for controlling the wearable electronic device based on at least one of attributes of the rim touch.

公开(公告)号：US10978049B2

公开(公告)日：2021-04-13

申请号：US16256563

申请日：2019-01-24

Applicant: Korea Electronics Technology Institute

Inventor： Young Han Lee ,  Jong Yeol Yang ,  Choong Sang Cho ,  Hye Dong Jung

IPC: G10L15/16 ,  G10L13/00 ,  G10L15/14 ,  G10L15/04 ,  G06N20/10 ,  G06N7/00 ,  G10L13/08 ,  G06F40/216

Abstract: An audio segmentation method based on an attention mechanism is provided. The audio segmentation method according to an embodiment obtains a mapping relationship between an “inputted text” and an “audio spectrum feature vector for generating an audio signal”, the audio spectrum feature vector being automatically synthesized by using the inputted text, and segments an inputted audio signal by using the mapping relationship. Accordingly, high quality can be guaranteed and the effort, time, and cost can be noticeably reduced through audio segmentation utilizing the attention mechanism.

公开(公告)号：US20210104917A1

公开(公告)日：2021-04-08

申请号：US16666718

申请日：2019-10-29

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Younghan KIM ,  Hyunseuk AHN ,  Changseok YUN

IPC: H02J50/20 ,  H02J50/80 ,  H04W52/02 ,  H04L29/08

Abstract: An energy harvesting system, apparatus, and method are provided to perform wakeup for a function-performing module while minimizing power consumption. The energy harvesting apparatus performs energy harvesting through a harvesting/wakeup module by receiving RF signals from air when the function-performing module is in a power-off state. If any RF signal containing wakeup information is detected during the energy harvesting, the energy harvesting apparatus wakes up the function-performing module being in the power-off state.

公开(公告)号：US10966599B2

公开(公告)日：2021-04-06

申请号：US16424546

申请日：2019-05-29

Applicant: Korea Electronics Technology Institute

Inventor： Min Gyu Park ,  Young Bae Hwang ,  Ju Hong Yoon

IPC: A61B1/05 ,  A61B1/06 ,  H04N5/225 ,  H04N13/239 ,  H04N13/00

Abstract: An endoscopic stereo matching method and apparatus using a direct attenuation model is provided. A method for generating a depth image according to an embodiment includes: generating a stereo image; and estimating a depth image from the stereo image based on an attenuation trend of light of an illumination used to generate the stereo image. Accordingly, a dense depth image can be obtained by using images obtained from a capsule endoscope, and thus the geometric structure of the inside of the GI tract can be estimated.

公开(公告)号：US20210057940A1

公开(公告)日：2021-02-25

申请号：US16713035

申请日：2019-12-13

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Yongju PARK ,  Yongseong KIM ,  Yongseok LIM

IPC: H02J50/80 ,  H02J50/50

Abstract: A power transmitting unit (PTU) for wireless power transmission (WPT) includes a communication transceiver and a power controller. The communication transceiver connects a communication link with at least one power receiving unit (PRU) through legacy communication and exchanges parameters necessary for the WPT through the connected communication link. The power controller is configured to transmit, to the PRU, a PTU beacon containing information about a dedicated power slot (DPS) allocated to the PRU in a super frame including a plurality of DPSs, to receive a PRU beacon from the PRU, to extract a phase difference between a plurality of antennas by analyzing a continuous wave (CW) of the PRU beacon, and to transmit power to the PRU in the allocated DPS in consideration of the phase difference.

公开(公告)号：US10924782B2

公开(公告)日：2021-02-16

申请号：US16204972

申请日：2018-11-29

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Woochool Park ,  Junhwan Jang ,  Youngwha Kim ,  Jinwook Yang ,  Sangpil Yoon ,  Hyunwook Kim ,  Eunkyung Cho ,  Minsu Choi ,  Junsuk Lee ,  Jaeyoung Yang

IPC: H04N21/2343 ,  H04N21/234 ,  H04N21/442

Abstract: The present disclosure provides a system for providing an image-segmentation based streaming service. The system includes a communication circuit configured to establish a communication channel with a streaming server, a storage configured to store data provided by the streaming server, a display configured to output an image, a processor functionally connected to the communication circuit, the storage, and the display. The processor can detect a region-of-interest (ROI) of an output image associated with a media presentation description (MPD) provided by the streaming server and transmit the ROI information to the streaming server. The processor can also receive image segments of a first resolution corresponding to the ROI information and a full image of a second resolution from the streaming server. The processor can also synthesize the image segments of the first resolution and the full image of the second resolution to output a synthesized reconstruction image through the display.

公开(公告)号：US10825983B2

公开(公告)日：2020-11-03

申请号：US15663484

申请日：2017-07-28

Applicant: Korea Electronics Technology Institute

Inventor： Hyung Won Kang ,  Seung Ho Han

IPC: H01L41/187 ,  H01L41/08 ,  H01L41/12 ,  H02N2/18 ,  H01L41/20 ,  H01L41/00 ,  H01L41/22

Abstract: A magnetoelectric energy harvester having excellent power generation performance and a manufacturing method thereof are provided. The magnetoelectric energy harvester includes a magnetostrictive material portion including a magnetostrictive material which generates a mechanical deformation when being magnetized. The magnetoelectric energy harvester also includes a piezoelectric material portion which has a bending vibration mode and includes a piezoelectric material which produces power by receiving a mechanical deformation force from the magnetostrictive material portion.