公开(公告)号：US20220148616A1

公开(公告)日：2022-05-12

申请号：US17514460

申请日：2021-10-29

Applicant: Korea Photonics Technology Institute

Inventor： Seon Man Kim ,  Kwang Hoon Lee ,  Hoe Min Kim ,  Sung Kuk Chun ,  Seon Kyu Yoon ,  Jin Su Lee

IPC: G10L25/51 ,  G10L25/30 ,  G08B3/00 ,  G08B25/00 ,  G08B23/00

Abstract: According to an embodiment of the disclosure, a system for controlling an emergency bell based on sound comprises an emergency bell device installed in a crime area, gathering sound information generated in the crime area, detecting an emergency event from the gathered sound information, and generating an emergency bell operation signal, an analysis server receiving, in real-time, the sound information from the emergency bell device if the emergency bell operation signal is received, classifying per-time key sound sources in the sound information, and providing a situation analysis result on whether a crime occurs using the classified per-time key sound sources, and a control server receiving the situation analysis result and providing on-site dispatch information or situation response information to a security terminal in charge of the crime area based on the received situation analysis result.

公开(公告)号：US11911106B2

公开(公告)日：2024-02-27

申请号：US16719971

申请日：2019-12-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Kwanghoon Lee ,  Sungguk Chun ,  Seonkyu Yoon ,  Seon Man Kim

IPC: A61B3/117 ,  A61B3/10 ,  G02C7/02

CPC classification number: A61B3/1176 ,  A61B3/1015 ,  G02C7/02 ,  G02C2202/10

Abstract: An optical modulator is disposed in front of an eye along a direction in which light enters the eye to modulate the properties of light depending on the degree of opacity of the eye.

公开(公告)号：US11765524B1

公开(公告)日：2023-09-19

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 ,  H04R25/604 ,  H04R25/609 ,  H04S3/008 ,  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：US11869532B2

公开(公告)日：2024-01-09

申请号：US17514460

申请日：2021-10-29

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Seon Man Kim ,  Kwang Hoon Lee ,  Hoe Min Kim ,  Sung Kuk Chun ,  Seon Kyu Yoon ,  Jin Su Lee

IPC: G10L25/51 ,  G10L25/30 ,  G08B23/00 ,  G08B25/00 ,  G08B3/00

CPC classification number: G10L25/51 ,  G08B3/00 ,  G08B23/00 ,  G08B25/00 ,  G10L25/30

Abstract: According to an embodiment of the disclosure, a system for controlling an emergency bell based on sound comprises an emergency bell device installed in a crime area, gathering sound information generated in the crime area, detecting an emergency event from the gathered sound information, and generating an emergency bell operation signal, an analysis server receiving, in real-time, the sound information from the emergency bell device if the emergency bell operation signal is received, classifying per-time key sound sources in the sound information, and providing a situation analysis result on whether a crime occurs using the classified per-time key sound sources, and a control server receiving the situation analysis result and providing on-site dispatch information or situation response information to a security terminal in charge of the crime area based on the received situation analysis result.

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.