公开(公告)号：US20180309260A1

公开(公告)日：2018-10-25

申请号：US15957787

申请日：2018-04-19

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young Min JHON ,  Byunghyuck MOON ,  Young In JOHN ,  Minah SEO ,  Jaehun KIM ,  Yongsang RYU ,  Taikjin LEE ,  Seok LEE

IPC: H01S3/11 ,  H01S3/00 ,  H01S3/10 ,  H01S3/08

CPC classification number: H01S3/1112 ,  H01S3/08027 ,  H01S3/08036 ,  H01S3/08054 ,  H01S3/092 ,  H01S3/0941 ,  H01S3/10061 ,  H01S3/107 ,  H01S3/1075 ,  H01S3/11 ,  H01S3/1103 ,  H01S3/1109 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1623 ,  H01S3/1625 ,  H01S3/1636 ,  H01S3/1643 ,  H01S2301/08

Abstract: Disclosed herein is a single pulse laser apparatus which includes a first mirror and a second mirror disposed at both ends of the single pulse laser apparatus and having reflectivities of a predetermined level or more; a gain medium rotated at a predetermined angle and configured to oscillate a laser beam in a manual mode-locking state; a linear polarizer configured to output a beam having a specific polarized component of the oscillated laser beam; an etalon configured to adjust a pulse width of the oscillated laser beam; and an electro-optic modulator configured to perform Q-switching and single pulse switching.

公开(公告)号：US20190383922A1

公开(公告)日：2019-12-19

申请号：US16477458

申请日：2017-12-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Taikjin LEE ,  Chulki KIM ,  Yongsang RYU ,  Beomju SHIN

IPC: G01S11/06 ,  G01C21/20

Abstract: The present invention relates to integrated localization method and apparatus of high accuracy, and estimates a relative position of a moving node, based on motion sensing of the moving node, estimates an absolute position of the moving node, based on a change pattern of at least one signal strength received from at least one fixed node over a plurality of time points, calculates accuracy of the absolute position of the moving node that changes along a movement route of the moving node, and determines a current position of the moving node from at least one of the relative position and the absolute position estimated as such in accordance with the accuracy of the absolute position of the moving node. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment or various route changes but also has almost no change in signal strength over a wide region.

公开(公告)号：US20190204215A1

公开(公告)日：2019-07-04

申请号：US16235869

申请日：2018-12-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Minah SEO ,  Yongsang RYU ,  Young Min JHON ,  Jaehun KIM ,  Taikjin LEE ,  Chulki KIM

IPC: G01N21/3581

CPC classification number: G01N21/3581 ,  G01N2201/068

Abstract: A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.