公开(公告)号：US20230283972A1

公开(公告)日：2023-09-07

申请号：US18196047

申请日：2023-05-11

Applicant: Korea Photonics Technology Institute

Inventor： Seon Man KIM ,  Kwang Hoon LEE

IPC: H04R25/00 ,  H04S3/00

CPC classification number: H04R25/505 ,  H04S3/008 ,  H04R25/604 ,  H04R25/609 ,  H04R2225/41 ,  H04S2400/01

Abstract: A hearing aid with the variable number of channels includes: a microphone that receives a sound signal; an AD converter that converts the sound signal input from the microphone into a digital signal and outputs the converted digital signal; a controller that determines a filter bank channel for processing the digital signal output from the AD converter; a buffer unit that delays the digital signal based on the determined filter bank channel; a signal processor that includes at least one filter bank channel, synthesizes the digital signal using the determined filter bank channel and outputs the synthesized digital signal; a DA converter that converts the digital signal into the sound signal and outputs the converted sound signal; and a speaker that outputs the sound signal output from the DA converter, in which the controller determines the filter bank channel for processing the digital signal based on a preset condition.

公开(公告)号：US20230213890A1

公开(公告)日：2023-07-06

申请号：US17744627

申请日：2022-05-14

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Seon Kyu Yoon ,  Kyung ll Joo ,  Ha Mong Shim

IPC: G03H1/04 ,  G03H1/00

CPC classification number: G03H1/0443 ,  G03H1/0005 ,  G03H2001/005 ,  G03H2222/12 ,  G03H2222/53 ,  G03H2223/24 ,  G03H2226/02

Abstract: According to an embodiment, a holographic microscope comprises a light source emitting light to an object, a beam splitter reflecting the light emitted from the light source to the object and transmitting object light reflected from the object, a holographic image sensor sensing information, including a holographic image, by receiving the object light and allowing the object light to coherently interfere with reference light, and an image processor obtaining three-dimensional (3D) information about the object based on the information sensed by the holographic image sensor. The holographic image sensor includes a lens focusing the object light to the holographic image sensor, a filter transmitting a predetermined wavelength band of light of the focused object light, a light receiving unit receiving interference light to sense a holographic image, and a reference light source directly emitting the reference light having the predetermined wavelength band to the light receiving unit.

公开(公告)号：US11446755B2

公开(公告)日：2022-09-20

申请号：US16950920

申请日：2020-11-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Hoe Min Kim ,  Sung Kuk Chun ,  Dong Kil Lee ,  Kwang Hoon Lee ,  Seon Man Kim

IPC: G06T7/70 ,  B23K9/095

Abstract: According to an embodiment, an object tracking device in a welding process tracks and outputs a predetermined object in a welding image. The object tracking device comprises a camera device capturing the welding image including a base material and a welding torch for welding the base material, a controller receiving a plurality of camera control parameter-varied images from the camera device, identifying the predetermined object in the received images, and generating an object tracking image, the plurality of camera control parameter-varied images having varied camera control parameters of the camera device, and an output device outputting the welding image captured by the camera device, the plurality of images received by the controller, or the object tracking image generated by the controller.

公开(公告)号：US20220210383A1

公开(公告)日：2022-06-30

申请号：US17160641

申请日：2021-01-28

Applicant: Korea Photonics Technology Institute

Inventor： Seon Kyu Yoon ,  Sung Kuk Chun ,  Ha Mong Shim ,  Sungjoon Kim

IPC: H04N9/31 ,  G06F3/01

Abstract: According to an embodiment, an image projection device outputting an image to a screen comprises an input unit receiving an image from an outside, a sensor unit sensing a viewer's position and gaze direction, a controller correcting the received image into a preset model based on the viewer's position and gaze direction sensed by the sensor unit, and an output unit outputting the preset model.

公开(公告)号：US20220164596A1

公开(公告)日：2022-05-26

申请号：US17499456

申请日：2021-10-12

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Sung Kuk Chun ,  Hoe Min Kim ,  Jeong Rok Yun ,  Un Yong Kim

IPC: G06K9/62 ,  G06K9/46 ,  G06K9/42 ,  G06T7/00 ,  G06T7/90 ,  G06N3/04 ,  G06N3/08

Abstract: According to an embodiment, a system comprises a communication module providing a communication interface, a camouflage pattern evaluation module performing an artificial intelligence-based camouflage pattern evaluation algorithm on an operation environment image and a camouflage pattern image, analyzing a similarity between the operation environment image and the camouflage pattern image, and obtaining an evaluation result of camouflage performance for the camouflage pattern in the operation environment, and a processor deriving a quantitative camouflage performance value for the evaluation result. The artificial intelligence-based camouflage performance evaluation algorithm extracts feature information for the operation environment image and the camouflage pattern image and analyzes the similarity in color, pattern, or structure between the operation environment image and the camouflage pattern image based on the extracted feature information.

公开(公告)号：US20200378571A1

公开(公告)日：2020-12-03

申请号：US16882790

申请日：2020-05-26

Applicant: Korea Photonics Technology Institute

Inventor： Hyojin KIM

IPC: F21S9/03 ,  F21V33/00

Abstract: According to an embodiment, a light source-solar cell complex comprises a plurality of layers receiving light to generate current or receiving power to emit a preset wavelength band of light and a plurality of connectors grown between the layers and transferring the current generated from the layers to an outside or transferring power from the outside to each layer.

公开(公告)号：US20200225464A1

公开(公告)日：2020-07-16

申请号：US16719960

申请日：2019-12-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Kwanghoon LEE ,  Dongkil Lee ,  Sungguk Chun ,  Sungjoon Kim ,  Seonkyu Yoon

IPC: G02B26/08 ,  G02B27/10 ,  H04N5/33 ,  H04N5/238 ,  G06T19/00

Abstract: An augmented reality optical device includes an image generator receiving a preset wavelength range of light reflected by an affected part and generating an affected part image, an image output unit outputting a visible wavelength range of light corresponding to the affected part image, a first mirror unit reflecting the light output from the image output unit, a lens unit focusing the reflected light, a beam splitter reflecting a preset wavelength range of light incident from the outside in a preset direction and transmitting a portion of an incident visible wavelength range of light to a user's pupil (or in the preset direction) while reflecting another portion of the incident visible wavelength range of light in the preset direction (or to the user's pupil), and a second mirror unit re-reflecting the preset wavelength range of light reflected by the beam splitter to the image generator.

公开(公告)号：US20190021598A1

公开(公告)日：2019-01-24

申请号：US16127755

申请日：2018-09-11

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Joo Beom EOM

IPC: A61B5/00 ,  A61B8/12 ,  A61B8/08 ,  A61B8/00

Abstract: The present invention relates to an integrated catheter device for cardiovascular diagnosis and an image processing system using the same. According to an specific example of the invention, a cardiovascular image having a number of analytical aspects is obtained by acquiring an image in a cardiovascular region by one catheter using ultrasound, photoacoustic light, and near-infrared light, thereby enabling diagnosis of fibrosis of a blood vessel, atherosclerotic plaque, rupture prediction to be accurately performed.Since the catheter device is provided with the DCF for guiding near-infrared light having a predetermined wavelength in a core portion and guiding photoacoustic light and ultrasonic wave used in a clad portion, it is possible to guide light having different wave-lengths to the sample through the same path simultaneously. Accordingly, it is advantageously possible to reduce the radius of the catheter device capable of acquiring the cardiovascular image having a number of analytical aspects, and to acquire ultrasound, acoustic wave and near-infrared light at the same time.

公开(公告)号：US20180204973A1

公开(公告)日：2018-07-19

申请号：US15853778

申请日：2017-12-23

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Tak JEUNG ,  Won-Sik CHOI ,  Jun-Beom PARK ,  Jong-Hyeob BAEK

IPC: H01L33/00 ,  H01L25/075 ,  H01L33/62 ,  H01L21/66 ,  H01L33/32 ,  H01L33/06

CPC classification number: H01L33/0079 ,  H01L22/20 ,  H01L25/0753 ,  H01L33/007 ,  H01L33/0095 ,  H01L33/06 ,  H01L33/32 ,  H01L33/36 ,  H01L33/44 ,  H01L33/62 ,  H01L2933/0016 ,  H01L2933/0025 ,  H01L2933/0066

Abstract: The present invention is intended to provide a light-emitting diode (LED) structure which can be easily transferred onto another substrate, a transfer assembly whose adhesive strength with LED structures can be maintained in spite of repetitive transfer processes, LED structures and a transfer assembly for selectively transferring the LED structures, and a transfer method using the same.

公开(公告)号：US20170156826A1

公开(公告)日：2017-06-08

申请号：US15322940

申请日：2016-04-05

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Joo Beom EOM ,  Jaesung AHN ,  BYEONG IL LEE ,  In Hee SHIN ,  Anjin PARK ,  Byeong Ha LEE

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/247

CPC classification number: A61C9/006 ,  A61B1/00172 ,  A61B1/0019 ,  A61B1/247 ,  A61B5/0062 ,  A61B5/0088 ,  A61C9/0066 ,  A61C9/008 ,  G01B11/25 ,  G01B11/2518

Abstract: The present invention relates to a three-dimensional oral cavity scan device for a digital impression that obtains a three-dimensional image by processing a two-dimensional image acquired by photographing a three-dimensional subject in an oral cavity. The device includes: a pattern mask converting parallel light incident thereto into structured light; a piezoelectric plate where a mechanical vibration is generated on a surface thereof by an AC voltage applied thereto; and a power supply unit applying the AC voltage to the piezoelectric plate, wherein the piezoelectric plate moves the pattern mask in a longitudinal direction of the piezoelectric plate by using the mechanical vibration. The device can reduce noise and vibration by moving the pattern mask with an electrical method. In addition, the device can accurately measure depth of teeth by electrically controlling a focal length of structured light projected on the teeth.