公开(公告)号：US20210211794A1

公开(公告)日：2021-07-08

申请号：US16973405

申请日：2019-03-08

Applicant: CENTER FOR ADVANCED SOFT ELECTRONICS ,  POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Kilwon CHO ,  Siyoung Lee ,  Yoonyoung CHUNG

IPC: H04R1/08 ,  H04R31/00 ,  H04R1/40 ,  H04R3/00 ,  H04R7/04 ,  H04R7/16 ,  G10L25/78 ,  H04R1/14

Abstract: Proposed is a vibration sensor including: a substrate; a first electrode positioned on the substrate; a support positioned on the first electrode and including a cylindrical hollow hole; and a diaphragm including a thin film positioned on the support and a second electrode positioned on the thin film. According to the present disclosure, it is possible to manufacture a skin-attachable vibration sensor that is attached to a user's neck to detect vibration acceleration in user's neck skin, thus exhibiting a uniform and high sensitivity to a user's voice over the frequency range of the human voice. In addition, the sensor sensitively detects a user's voice through neck skin vibrations rather than through air, thus being free from the influence of external noise or wind, and can recognize the user's voice even in a situation where a user's mouth is covered.

公开(公告)号：US20190058257A1

公开(公告)日：2019-02-21

申请号：US16100765

申请日：2018-08-10

Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Ho-Jin SONG ,  Wonbin HONG ,  Yoonyoung CHUNG ,  Sungmin CHO

IPC: H01Q15/04 ,  H01Q3/26

CPC classification number: H01Q15/04 ,  H01Q3/267 ,  H01Q3/46 ,  H01Q15/12 ,  H01Q19/06

Abstract: A communication device for controlling a beam in a wireless communication system and a method therefor are provided. The communication device includes a lens including at least one layer in which unit cells are disposed, at least one processor configured to determine a beam pattern and control capacitance of each of the unit cells based on the beam pattern, and a transceiver for transmitting a signal in the determined beam pattern through the lens, which is capacitance-controlled. Each unit cell includes a first conductive member, a second conductive member overlapping at least a portion of the first conductive member, and spaced apart from the first conductive member, and a dielectric interposed between the overlapped portions of the first conductive member and the second conductive member. An overlap region of the first and second conductive members is arranged in a direction shielded from an external electromagnetic wave.

公开(公告)号：US20190217573A1

公开(公告)日：2019-07-18

申请号：US16248972

申请日：2019-01-16

Applicant: Postech Academy-Industry Foundation ,  Center for Advanced Soft Electronics

Inventor： Yoonyoung CHUNG ,  Kilwon CHO ,  Seongmin PARK ,  Hyuk PARK

IPC: B32B7/022 ,  H05K1/03 ,  B32B27/08 ,  B32B27/28 ,  B32B37/00 ,  B32B37/24

CPC classification number: B32B7/022 ,  B32B27/08 ,  B32B27/281 ,  B32B27/283 ,  B32B37/025 ,  B32B37/24 ,  B32B2037/243 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2305/72 ,  B32B2307/54 ,  B32B2307/546 ,  B32B2309/02 ,  B32B2379/08 ,  B32B2383/00 ,  B32B2457/08 ,  H05K1/036 ,  H05K2201/0154 ,  H05K2201/0162

Abstract: Provided is a flexible substrate. The flexible substrate includes a first film having a first Young's modulus, a second film on the first film and having a second Young's modulus, and a third film between the first film and the second film and having a third Young's modulus. The third Young's modulus is less than each of the first Young's modulus and the second Young's modulus.