-
Patent Agency Ranking
公开(公告)号：US12085968B2
公开(公告)日：2024-09-10
申请号：US17716889
申请日：2022-04-08
Inventor： Kwang Hyo Chung , Chang Geun Ahn , Do Hyun Kim , Seung Hwan Kim , Hyung Wook Noh , Hwin Dol Park , Yong Won Jang , Jae Hun Choi
CPC classification number: G05D7/0664 , F16L41/008 , F16L41/03
Abstract: Provided is a multi-port gas flow rate control apparatus. The multi-port gas flow rate control apparatus includes a gas supply chamber configured to supply a measurement gas input through one gas inflow channel while allowing the measurement gas to diverge into a plurality of flows, a plurality of gas divergence flow channels each having one side connected to the gas supply chamber and configured to transfer the measurement gas flowing through the gas supply chamber to a plurality of gas sensors, respectively, and a gas measurement chamber configured to accommodate the plurality of gas sensors, including the plurality of gas divergence flow channels configured to connect to the gas supply chamber to the plurality of gas sensors to transfer a gas outflow diverging through the gas supply chamber to the plurality of accommodated gas sensors, and configured to discharge the gas outflow sensed by the plurality of gas sensors.
-
公开(公告)号：US11747314B2
公开(公告)日：2023-09-05
申请号：US17401449
申请日：2021-08-13
Inventor： Jae Hun Choi , Hwin Dol Park , Chang-Geun Ahn , Do Hyeun Kim , Seunghwan Kim , Hyung Wook Noh , YongWon Jang , Kwang Hyo Chung
CPC classification number: G01N33/0062 , G01N33/0075 , G06N20/20 , G01N2033/0068
Abstract: Disclosed are a gas detection intelligence training system and an operating method thereof. The gas detection intelligence training system includes a mixing gas measuring device that collects an environmental gas from a surrounding environment, generates a mixing gas based on the collected environmental gas and a target gas, senses the mixing gas by using a first sensor array and a second sensor array under a first sensing condition and a second sensing condition, respectively, and generates measurement data based on the sensed results of the first sensor array and the second sensor array, and a detection intelligence training device including a processor that generates an ensemble prediction model based on the measurement data.
-
公开(公告)号：US12189733B2
公开(公告)日：2025-01-07
申请号：US17239005
申请日：2021-04-23
Inventor： Joo Yong Sim , Hyung Wook Noh , Chang-Geun Ahn
Abstract: A biometric authentication apparatus is provided. The biometric authentication apparatus includes one or more converters that convert a transmit signal of an electrical signal into a vibration signal of a mechanical signal and transmit the vibration signal vibrating within a set frequency range to a user, one or more sensor that receive a biometric signal corresponding to the vibration signal from the user and convert the biometric signal into a receive signal of an electrical signal, an authentication module that extracts anatomical feature information of the user from the receive signal and determines whether the user is a registered user based on the anatomical feature information, and a memory that stores a database for the registered user. The biometric signal is a frequency-based signal modified to include the anatomical feature information while the vibration signal passes through at least a portion of the body of the user.
-
4.发明授权公开(公告)号：US11800998B2
公开(公告)日：2023-10-31
申请号：US16687366
申请日：2019-11-18
Inventor： Hyung Wook Noh , Joo Yong Sim , Chang-Geun Ahn , Bong Kyu Kim
CPC classification number: A61B5/117 , A61B5/12 , A61B5/38 , A61B5/7264 , G06F3/015 , G06F21/32 , G06F21/34
Abstract: Provided is a personal authentication device based on an auditory brainstem response signal. The personal authentication device includes a signal generator, a signal acquirer, and a signal processor. The signal generator may output an auditory stimulus to an ear of a user, using a sound generator. The signal acquirer may acquire a first reference potential corresponding to a first interval, from a first electrode in close contact with the other ear of the user, and acquire a first evoked potential corresponding to the first interval from a second electrode in close contact with the ear, based on the first reference potential. The signal processor may generate a first auditory brainstem response signal, based on the first reference potential and the first evoked potential, generate authentication data for the user from the first auditory brainstem response signal, and compare the authentication data with registration data to authenticate the user.
-
公开(公告)号：US11275479B2
公开(公告)日：2022-03-15
申请号：US17148269
申请日：2021-01-13
Inventor： Hyung Wook Noh , Joo Yong Sim , Chang-Geun Ahn
Abstract: Disclosed is an electronic device. The electronic device includes an impedance measuring unit including electrodes, that applies a first measurement signal of a first frequency to a user, obtains first biometric impedance data, based on first electrodes among the electrodes, and obtains second biometric impedance data, based on second electrodes among the electrodes, and a signal processor that extracts first feature data of the user, based on the first biometric impedance data and the second biometric impedance data. The first feature data may be based on a ratio between a value of the first biometric impedance data and a value of the second biometric impedance data.
-
-
-
-
Search Results
5
records
(took 0.015 seconds)
