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公开(公告)号：US20220391170A1
公开(公告)日：2022-12-08
申请号：US17741928
申请日：2022-05-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Cheheung Kim , Hyunwook Kang , Hyeokki Hong
Abstract: A signal processing apparatus includes a frequency detector configured to receive a user input including at least one of a vibration input and a user voice, vibrate in response to the received user input, and detect a frequency of the received user input, based on the vibration, and a processor configured to determine a type of the user input received by the frequency detector, based on the frequency detected by the frequency detector, and perform a function corresponding to the user input of the determined type.
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公开(公告)号：US11942907B2
公开(公告)日：2024-03-26
申请号：US17322222
申请日：2021-05-17
Inventor： Hyeokki Hong , Jihun Lee , Gyuhyeong Cho , Cheheung Kim , Hyunwook Kang
CPC classification number: H03F3/005 , H03F3/45179 , H03F2203/45244
Abstract: The amplifier includes an input circuit configured to convert an input signal into a current; an output circuit comprising at least one switching element for reducing a voltage change of an output end of the input circuit and configured to provide an output signal; and a biasing circuit connected to the at least one switching element to form a feedback loop for reducing the voltage change of the output end of the input circuit.
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公开(公告)号：US20220214211A1
公开(公告)日：2022-07-07
申请号：US17348184
申请日：2021-06-15
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyunwook Kang , Cheheung Kim , Daehyuk Son , Hyeokki Hong
Abstract: An acoustic sensor assembly includes a non-directional acoustic sensor having a first directional pattern, a plurality of directional acoustic sensors surrounding the non-directional acoustic sensor and including a plurality of resonators having different resonance frequencies from each other, each of the plurality of directional acoustic sensors having a second directional pattern, and a processor configured to obtain output signals from the non-directional acoustic sensor and the plurality of directional acoustic sensors. The processor is further configured to calculate an acoustic signal having directivity by selecting any one or any combination of the obtained output signals or selectively combining the obtained output signals, and obtain sound around the acoustic sensor assembly, using the calculated acoustic signal.
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公开(公告)号：US12250504B2
公开(公告)日：2025-03-11
申请号：US18303228
申请日：2023-04-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyeokki Hong , Hyunwook Kang , Sungchan Kang , Cheheung Kim
Abstract: A multi-function acoustic sensor may include a plate structure having a plurality of open spaces that are spaced apart from each other; a plurality of sensors provided on the plate structure, the plurality of sensors including a plurality of sensor elements respectively provided to overlap the plurality of open spaces; and a case having an inner space in which the plurality of sensors are provided, the case including: a first case surface on which the plurality of sensors are provided, the first case surface having at least one first hole, and a second case surface opposite to the first case surface, the second case surface having at least one second hole, wherein the at least one first hole and the at least one second hole form at least one path along which sound is transmitted and sensed through at least one of the plurality of open spaces of the plate structure.
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公开(公告)号：US11317197B2
公开(公告)日：2022-04-26
申请号：US17003357
申请日：2020-08-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Cheheung Kim , Sungchan Kang , Hyeokki Hong , Hyunwook Kang , Yongseop Yoon , Choongho Rhee
Abstract: A compact directional acoustic sensor having an improved signal-to-noise ratio is disclosed. The disclosed directional acoustic sensor includes a first sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one first output signal having a first polarity based on external energy received from an input direction; a second sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one second output signal having a second polarity, that is different than the first polarity, based on the external energy received from the input direction; and at least one signal processor configured to generate at least one final output signal based on the at least one first output signal and the at least one second output signal.
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Patent Agency Ranking
公开(公告)号：US11632623B2
公开(公告)日：2023-04-18
申请号：US17717968
申请日：2022-04-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Cheheung Kim , Sungchan Kang , Hyeokki Hong , Hyunwook Kang , Yongseop Yoon , Choongho Rhee
Abstract: A compact directional acoustic sensor having an improved signal-to-noise ratio is disclosed. The disclosed directional acoustic sensor includes a first sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one first output signal having a first polarity based on external energy received from an input direction; a second sensing device configured to generate different output gains based on different input directions of external energy, and configured to generate at least one second output signal having a second polarity, that is different than the first polarity, based on the external energy received from the input direction; and at least one signal processor configured to generate at least one final output signal based on the at least one first output signal and the at least one second output signal.
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公开(公告)号：US20220103917A1
公开(公告)日：2022-03-31
申请号：US17193720
申请日：2021-03-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyeokki Hong , Hyunwook Kang , Sungchan Kang , Cheheung Kim
Abstract: A multi-function acoustic sensor may include a plate structure having a plurality of open spaces that are spaced apart from each other; a plurality of sensors provided on the plate structure, the plurality of sensors including a plurality of sensor elements respectively provided to overlap the plurality of open spaces; and a case having an inner space in which the plurality of sensors are provided, the case including: a first case surface on which the plurality of sensors are provided, the first case surface having at least one first hole, and a second case surface opposite to the first case surface, the second case surface having at least one second hole, wherein the at least one first hole and the at least one second hole form at least one path along which sound is transmitted and sensed through at least one of the plurality of open spaces of the plate structure.
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公开(公告)号：US11199865B2
公开(公告)日：2021-12-14
申请号：US16887002
申请日：2020-05-29
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyunwook Kang , Cheheung Kim , Hyeokki Hong , Sungchan Kang , Yongseop Yoon , Choongho Rhee
Abstract: A bandgap reference voltage generating circuit includes a first current generator generating a first complementary-to-absolute temperature (CTAT) current and a first proportional-to-absolute temperature (PTAT) current, a second current generator generating a second CTAT current and a second PTAT current, and an output circuit outputting a reference voltage based on a difference between a first voltage based on the first CTAT current and the first PTAT current and a second voltage based on the second CTAT current and the second PTAT current, wherein the first CTAT current is cancelled by the second CTAT current.
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公开(公告)号：US11038480B2
公开(公告)日：2021-06-15
申请号：US16791728
申请日：2020-02-14
Inventor： Hyeokki Hong , Ji-Hun Lee , Gyu-Hyeong Cho , Cheheung Kim , Hyunwook Kang
Abstract: An amplifier includes: a first input transistor connected to a first input, a first output, and a power source or a ground, a second input transistor connected to a second input, a second output, and the power source or the ground; a first replica transistor connected to the first input, a detection node, and the power source or the ground; a second replica transistor connected to the second input, the detection node, and the power source or the ground; and a bias transistor connected to a bias voltage, the detection node, and the power source or the ground.
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公开(公告)号：US10916436B2
公开(公告)日：2021-02-09
申请号：US16696513
申请日：2019-11-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Choongho Rhee , Sungchan Kang , Hyunwook Kang , Cheheung Kim , Yongseop Yoon , Jaehyung Jang , Hyeokki Hong
IPC: H01L21/306 , H01L21/3065 , H01L21/56 , H01L21/683 , H01L21/02 , H01L21/311 , H01L21/3213
Abstract: Provided is a plasma dicing method. The plasma dicing method includes: performing plasma etching on a first surface of a substrate exposed between a plurality of membrane structures; forming a passivation layer on a semiconductor wafer to cover the plurality of membrane structures and at least one trench; performing plasma etching on a second surface of the substrate such that a through hole exposing a portion of the plurality of membrane structures and a dicing lane connected to the trench and having a width less than a width of the through hole are formed at the substrate; and removing the passivation layer and singulating the semiconductor wafer into a plurality of devices including a membrane partially exposed by the through hole.
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