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    Silicon photonics-based optical modulator
    311.
    发明授权
    Silicon photonics-based optical modulator 有权

    公开(公告)号：US11899334B2

    公开(公告)日：2024-02-13

    申请号：US17545063

    申请日：2021-12-08

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Sanghwa Yoo ,  Sooyeon Kim ,  Heuk Park ,  Jyung Chan Lee ,  Joon Ki Lee

    IPC: G02F1/225 ,  G02F1/01

    CPC classification number: G02F1/2257 ,  G02F1/0123 ,  G02F2202/105

    Abstract: A silicon photonics-based optical modulator is disclosed. The optical modulator includes first radio frequency (RF) metal electrodes that operate as a ground, phase shifters disposed between the first RF metal electrodes for optically modulating an optical signal transmitted along an optical waveguide, second RF metal electrodes disposed between the phase shifters for providing an RF electrical signal received from a driving driver located outside of the optical modulator through one end, resistor-inductors (RL) connected to another end of the second RF metal electrodes, an inductive line disposed between the RLs and a power supply for applying a bias voltage to the optical modulator and the driving driver, and a silicon capacitor disposed between the RLs and the power supply for preventing a degradation of an RF response characteristic of the silicon photonics-based optical modulator caused by the inductive line.

    Electronic device generating multi-plane-image of arbitrary viewpoint and operating method thereof
    314.
    发明授权
    Electronic device generating multi-plane-image of arbitrary viewpoint and operating method thereof 有权

    公开(公告)号：US11895287B2

    公开(公告)日：2024-02-06

    申请号：US17513362

    申请日：2021-10-28

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Seongjin Park ,  Do Hyung Kim

    IPC: H04N13/282 ,  G06N3/08 ,  H04N13/111 ,  H04N13/246

    CPC classification number: H04N13/282 ,  G06N3/08 ,  H04N13/111 ,  H04N13/246

    Abstract: Disclosed are an electronic device generating a multi-plane image of an arbitrary viewpoint and an operating method thereof. The electronic device includes a memory that stores a plurality of images, and at least one processor that executes a machine learning-based multi-plane image generating module generating an image of an arbitrary viewpoint from the plurality of images stored in the memory. When the multi-plane image generating module is executed, the processor selects at least two images from the plurality of images, by performing geometric calibration on the plurality of images, calculates a plane sweep volume including at least two layer images, performs an operation of a deep neural network to generate a plurality of multi-plane images having probability values, and generates the image of the arbitrary viewpoint by composing the plurality of multi-plane images and stores the image of the arbitrary viewpoint in the memory.

    Apparatus and method for searching for global minimum of point cloud registration error
    315.
    发明授权
    Apparatus and method for searching for global minimum of point cloud registration error 有权

    公开(公告)号：US11893678B2

    公开(公告)日：2024-02-06

    申请号：US17583691

    申请日：2022-01-25

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hyuk-Min Kwon ,  Hyun-Cheol Kim ,  Jeong-Il Seo ,  Sang-Woo Ahn ,  Seung-Jun Yang

    IPC: G06T15/08 ,  G06T15/10

    CPC classification number: G06T15/08 ,  G06T15/10 ,  G06T2210/56

    Abstract: Disclosed herein are an apparatus and method for searching for a global minimum of a point cloud registration error. The apparatus includes memory in which at least one program is recorded and a processor for executing the program. The program performs collecting multiple registration results in which the registration error between a source point cloud and a target point cloud is a local minimum as candidates and selecting the registration result in which the registration error between the source point cloud and the target point cloud is a global minimum, among the candidates. Collecting the multiple registration results may comprise repeatedly randomly initializing the source point cloud and the target point cloud and registering the initialized source point cloud to the initialized target point cloud to thereby search for a registration result in which the registration error therebetween is a local minimum.

    Method and apparatus for transmitting or receiving feedback information in communication system
    317.
    发明授权
    Method and apparatus for transmitting or receiving feedback information in communication system 有权

    公开(公告)号：US11889516B2

    公开(公告)日：2024-01-30

    申请号：US17299241

    申请日：2020-01-02

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hoi Yoon Jung ,  Sung Ik Park ,  Heung Mook Kim ,  Nam Ho Hur

    IPC: H04W72/23 ,  H04L1/1812

    CPC classification number: H04W72/23 ,  H04L1/1812

    Abstract: Disclosed are a method and an apparatus for transmitting or receiving feedback information in a communication system. An operation method of a terminal comprises the steps of: receiving, from a base station, DCI #1 including scheduling information of PDSCH #1 and transmission resource information of HARQ response #1 with respect to PDSCH #1; receiving, from the base station, DCI #2 including scheduling information of PDSCH #2 and transmission resource information of HARQ response #2 with respect to PDSCH #2; and when the transmission resource information of HARQ response #1 is configured as undefined, transmitting, to the base station, HARQ response #1 and HARQ response #2 by using a resource indicated by the transmission resource information of HARQ response #2. Therefore, the performance of the communication system can be improved.

    METHOD OF SYNTHESIZING 3D JOINT DATA BASED ON MULTI-VIEW RGB-D CAMERA
    319.
    发明公开
    METHOD OF SYNTHESIZING 3D JOINT DATA BASED ON MULTI-VIEW RGB-D CAMERA 审中-公开

    公开(公告)号：US20240029307A1

    公开(公告)日：2024-01-25

    申请号：US18070924

    申请日：2022-11-29

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jong Sung KIM ,  Seong Il YANG ,  Minsung YOON

    IPC: G06T7/80 ,  G06V40/10

    CPC classification number: G06T7/85 ,  G06V40/10 ,  G06T2207/10024

    Abstract: Provided is a method of synthesizing 3D joint data based on a multi-view RGB-D camera. The method of synthesizing 3D joint data includes: converting joint data collected from a depth camera of each of a plurality of RGB-D cameras from a depth camera coordinate system of each of the RGB-D cameras to a color camera coordinate system of each of the RGB-D cameras; calculating a confidence level of the joint data converted to the color camera coordinate system using a 3D joint recognition algorithm based on the joint data converted to the color camera coordinate system; applying a rotation matrix and a translation vector to the joint data and converting the joint data to a predetermined reference coordinate system; and obtaining a weighted-average of the joint data converted to the reference coordinate system using a weight calculated based on the confidence level to synthesize the joint data.

    Method and apparatus for rendering volume sound source
    320.
    发明授权
    Method and apparatus for rendering volume sound source 有权

    公开(公告)号：US11882425B2

    公开(公告)日：2024-01-23

    申请号：US17681429

    申请日：2022-02-25

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Dae Young Jang ,  Kyeongok Kang ,  Jae-hyoun Yoo ,  Yong Ju Lee ,  Tae Jin Lee

    IPC: H04S7/00 ,  H04S3/00

    CPC classification number: H04S7/303 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/13

    Abstract: A method and apparatus for rendering a volume sound source are disclosed. The method of rendering a volume sound source may include identifying information about a listener and information about the volume sound source, determining a corresponding area in which a source element is disposed in the volume sound source in consideration of the information about the listener, determining an angle between the listener and the corresponding area based on the information about the listener and the information about the volume sound source, determining a number of source elements disposed in the corresponding area according to the angle, determining a position and a gain of the source element using i) the number of source elements and ii) a distance between the listener and the volume sound source, and rendering the volume sound source according to the position and the gain of the source element.

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