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公开(公告)号：US20210219046A1
公开(公告)日：2021-07-15
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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公开(公告)号：US20210157351A1
公开(公告)日：2021-05-27
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
IPC: G05F3/22
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：US20230254612A1
公开(公告)日：2023-08-10
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：US20220240006A1
公开(公告)日：2022-07-28
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：US20220166391A1
公开(公告)日：2022-05-26
申请号：US17322222
申请日：2021-05-17
Inventor： Hyeokki HONG , Jihun LEE , Gyuhyeong CHO , Cheheung KIM , Hyunwook KANG
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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Patent Agency Ranking
公开(公告)号：US20210036672A1
公开(公告)日：2021-02-04
申请号：US16791728
申请日：2020-02-14
Inventor： Hyeokki HONG , Ji-Hun LEE , Gyu-Hyeong CHO , Cheheung KIM , Hyunwook KANG
IPC: H03F3/45
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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7.发明申请公开(公告)号：US20200370951A1
公开(公告)日：2020-11-26
申请号：US16574916
申请日：2019-09-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungchan KANG , Hyunwook KANG , Yongseop YOON , Jaehyung JANG
Abstract: Provided are a directional acoustic sensor and a method of detecting a distance from a sound source using the same. The directional acoustic sensor may include a plurality of resonators arranged in different directions; and a processor configured to calculate a time difference between a first signal that is received by the plurality of resonators directly from a sound source and a second signal that is received by the plurality of resonators from the sound source after being reflected on a wall surface around the sound source, and determine a distance between the sound source and the directional acoustic sensor based on the time difference.
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公开(公告)号：US20220392479A1
公开(公告)日：2022-12-08
申请号：US17710207
申请日：2022-03-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Cheheung KIM , Hyunwook KANG
IPC: G10L21/0364 , H04R3/00 , G10L21/0216
Abstract: A sound signal processing apparatus may include: a directional microphone configured to detect a user voice signal including a user's voice by arranging the directional microphone to face an utterance point of the user's voice; a non-directional microphone configured to detect a mixed sound signal comprising the user voice and an external sound; and a processor configured to generate an external sound signal by attenuating the user's voice from the mixed sound signal, by differentially calculating the user voice signal from the mixed sound signal.
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公开(公告)号：US20220240005A1
公开(公告)日：2022-07-28
申请号：US17717920
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：US20220086570A1
公开(公告)日：2022-03-17
申请号：US17182911
申请日：2021-02-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyunwook KANG , Sungchan KANG , Cheheung KIM , Choongho RHEE , Hyeokki HONG
IPC: H04R17/10 , H01L27/20 , H01L41/113 , H04R17/02
Abstract: Provided is a sensor interface including a first cantilever beam bundle including at least one resonator and a first output terminal, a second cantilever beam bundle including at least one resonator and a second output terminal, and a differential amplifier including a first input terminal electrically connected to the first output terminal of the first cantilever beam bundle and a second input terminal electrically connected to the second output terminal of the second cantilever beam bundle.
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