公开(公告)号：US20210384848A1

公开(公告)日：2021-12-09

申请号：US17237653

申请日：2021-04-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： HANBIT JIN ,  Hye Jin KIM ,  Yun-Jeong KIM ,  YuLim MIN ,  WOOSEUP YOUM ,  JoonMin LEE ,  Chan-Hwa HONG

IPC: H02N2/04

Abstract: The present disclosure relates to a piezoelectric device, and more particularly, to a piezoelectric device including: a piezoelectric actuator; a displacement transmission structure disposed on the piezoelectric actuator; and a displacement amplification structure disposed between the piezoelectric actuator and the displacement transmission structure. Here, the displacement amplification structure includes: a first displacement amplification structure and a second displacement amplification structure, which cross each other; and a fixing pin that passes through the first displacement amplification structure and the second displacement amplification structure to connect the first displacement amplification structure and the second displacement amplification structure. Also, each of one end of the first displacement amplification structure and one end of the second displacement amplification structure may be fixed on the piezoelectric actuator.

公开(公告)号：US20220327897A1

公开(公告)日：2022-10-13

申请号：US17513543

申请日：2021-10-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： HANBIT JIN ,  Yun-Jeong KIM ,  Hye Jin KIM ,  WOOSEUP YOUM ,  Chan-Hwa HONG

IPC: G08B6/00 ,  B06B1/06

Abstract: Provided is a telehaptic device which includes a piezoelectric sensor module and a piezoelectric actuator module that are spaced apart from each other, wherein the piezoelectric sensor module includes a first flexible substrate, a first support substrate connected to the first flexible substrate, a piezoelectric sensor array on the first flexible substrate, and a first wireless communication circuit on the first support substrate, the piezoelectric actuator module includes a second flexible substrate, a second support substrate connected to the second flexible substrate, a piezoelectric actuator array on the second flexible substrate, and a second wireless communication circuit on the second support substrate, the piezoelectric sensor array includes piezoelectric sensors, the piezoelectric sensors being spaced apart according to a first pitch, the piezoelectric actuator array includes piezoelectric actuators, the piezoelectric actuators being spaced apart according to a second pitch, the first pitch and the second pitch are the same.

公开(公告)号：US20240331589A1

公开(公告)日：2024-10-03

申请号：US18420052

申请日：2024-01-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： WOOSEUP YOUM ,  CHUNWON BYUN ,  Chan-mo KANG

IPC: G09G3/00 ,  G06F3/01 ,  G06T3/40

CPC classification number: G09G3/001 ,  G06F3/012 ,  G06F3/013 ,  G06T3/40 ,  G09G2340/045 ,  G09G2354/00 ,  G09G2370/02

Abstract: Disclosed is a method of operating a stereoscopic image generating device communicating with a rendering server device including obtaining first tracking data by tracking a motion of a user during a reference time interval, obtaining second tracking data by tracking a viewpoint of the user during the reference time interval, providing the first tracking data to the rendering server device, receiving one or more focus image data corresponding to the first tracking data from the rendering server device, extracting one or more areas corresponding to the tracked viewpoint from each of the one or more focus image data based on the second tracking data, generating multifocal virtual reality (VR) image data by up-scaling the extracted one or more areas, and visually providing, by a display device of the stereoscopic image generating device, the multifocal VR image data to the user.

公开(公告)号：US20220014841A1

公开(公告)日：2022-01-13

申请号：US17328528

申请日：2021-05-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hye Jin KIM ,  JoonMin LEE ,  Yun-Jeong KIM ,  YuLim MIN ,  WOOSEUP YOUM ,  HANBIT JIN ,  Chan-Hwa HONG

IPC: H04R1/28 ,  H04R5/02 ,  H04R1/02

Abstract: The present disclosure relates to a device for playing an acoustic sound and a touch sensation, and more particularly, to a device for emitting a sound to a front surface of a speaker and playing a touch sensation feedback to a rear surface of the speaker through a driving modulation using two or more speakers while simultaneously concentrating an acoustic pressure generated according to a vibration of a membrane of the speaker to a surface of a module through a movement pipe when an audio signal is applied.

公开(公告)号：US20240011850A1

公开(公告)日：2024-01-11

申请号：US18347163

申请日：2023-07-05

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

Inventor： HANBIT JIN ,  Steve PARK ,  Hye Jin KIM ,  Seyoung KWON ,  Gyeongsuk PARK ,  WOOSEUP YOUM

IPC: G01L1/18

CPC classification number: G01L1/18

Abstract: Provided is a flexible pressure sensor. The flexible pressure includes: a lower structure; and an upper structure on the lower structure, wherein the lower structure includes: a flexible substrate; and first electrodes on the flexible substrate and second electrode spaced apart from the first electrodes, and the upper structure includes: a support; first protrusion structures integrally connected to the support to protrude from a bottom surface of the support; and second protrusion structures integrally connected to the support to protrude from the bottom surface of the support, the second protrusion structures being spaced apart from the first protrusion structures, wherein the first protrusion structures are in contact with a top surface of the flexible substrate, the second protrusion structures are vertically spaced apart from the first and second electrodes, and when viewed in a plan view, the first protrusion structures are configured to completely surround the second protrusion structures.

公开(公告)号：US20210361525A1

公开(公告)日：2021-11-25

申请号：US17328277

申请日：2021-05-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kang-Ho PARK ,  Jong Tae LIM ,  Seung Youl KANG ,  Bock Soon NA ,  Chan Woo PARK ,  Seongdeok AHN ,  WOOSEUP YOUM ,  Ji-Young OH

IPC: A61H23/02

Abstract: Provided is a vibratory stimulation device including a first substrate, a connection band connected to both sides of the first substrate, and a vibration element array including a plurality of vibration elements provided on the first substrate, wherein each of the vibration elements includes a stand provided on the first substrate, a vibration film provided on the stand and in contact with the stand at an edge, a vibrator provided on an upper or lower surface of the vibration film, and an electrode wire connected to the vibrator, wherein the vibration film includes a material that is more flexible and stretchable than the stand.