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公开(公告)号：US12111968B2
公开(公告)日：2024-10-08
申请号：US18050373
申请日：2022-10-27
Inventor： Wooseup Youm , Hye Jin Kim , YuLim Min , Yun-Jeong Kim , Hanbit Jin , Chan-Hwa Hong
IPC: G06F3/01
CPC classification number: G06F3/016
Abstract: Provided is a haptic waveform storage system including a sensor configured to measure a target object to generate a sensing signal including tactile texture information, a waveform extraction unit configured to extract a basic frequency and an envelope from the sensing signal and generate haptic waveform information including information about the basic frequency and the envelope, and a library storage unit configured to store the haptic waveform information.
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公开(公告)号：US11533003B2
公开(公告)日：2022-12-20
申请号：US17237653
申请日：2021-04-22
Inventor： Hanbit Jin , Hye Jin Kim , Yun-Jeong Kim , YuLim Min , Wooseup Youm , JoonMin Lee , Chan-Hwa Hong
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.
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公开(公告)号：US11509996B2
公开(公告)日：2022-11-22
申请号：US17328528
申请日：2021-05-24
Inventor： Hye Jin Kim , JoonMin Lee , Yun-Jeong Kim , YuLim Min , Wooseup Youm , Hanbit Jin , Chan-Hwa Hong
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.
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公开(公告)号：US11749075B2
公开(公告)日：2023-09-05
申请号：US17513543
申请日：2021-10-28
Inventor： Hanbit Jin , Yun-Jeong Kim , Hye Jin Kim , Wooseup Youm , Chan-Hwa Hong
CPC classification number: G08B6/00 , B06B1/0629
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.
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