Samsung Electronics Co., Ltd.

Seoul National University

Sungchan Kang

Dongkyun Kim

Jongseok Kim

Cheheung Kim

Choongho Rhee

Yongseop Yoon

Hyeokki Hong

Sangha Park

Hyunwook Kang

Namsoo Kim

Jaehyung Jang

Daehyuk Son

Hyungyong Kim

Seogwoo Hong

Byunggil Jeong

Jinmyoung Kim

Seokwhan Chung

Jeongyub Lee

Woonbae Kim

Hyungjae Shin

Seokwan Chae

Choong Ho Rhee

A directional acoustic sensor includes: a support including a first support portion and a second support portion that are separated from each other and face each other; a plurality of first resonators extending in a length direction thereof from the first support portion of the support; and a plurality of second resonators extending in the length direction thereof from the second support portion of the support and facing the plurality of first resonators, wherein each first resonator of the plurality of first resonators has a first end, wherein each second resonator of the plurality of second resonators has a second end, and wherein, in a first resonator arrangement of a region where the plurality of first resonators and the plurality of second resonators face each other, the first ends of the plurality of first resonators and the second ends of the plurality of second resonators form an intersecting structure.

Directional acoustic sensor

A semiconductor device includes a semiconductor chip including a semiconductor integrated circuit; a cooling channel including a surface of the semiconductor chip and configured to provide a passage for a coolant to cool the semiconductor chip; and a plurality of flexible capillary patterns on the surface of the semiconductor chip inside the cooling channel and configured to move the coolant by capillary action, wherein each capillary pattern of the plurality of flexible capillary patterns may include a first portion in a length direction of the capillary pattern that contacts and is supported by the surface of the semiconductor chip, and a second portion in the length direction that is spaced apart from and unsupported by the surface of the semiconductor chip, and a curvature of the second portion of each capillary pattern of the plurality of flexible capillary patterns changes according to temperature.

Semiconductor device with two-phase cooling structure

A filter system includes a first resonator having a first resonant frequency, and a second resonator having a second resonant frequency different from the first resonant frequency, and electrically connected to the first resonator. A first response characteristic of the first resonator and a second response characteristic of the second resonator with respect to a frequency include a first section in which a first phase of the first resonator is equal to a second phase of the second resonator, and a second section in which the first phase is different from the second phase by 180 degrees. A first electrode of the first resonator is reversely connected to a second electrode of the second resonator.

Filter system including resonator

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.

Multi-function acoustic sensor

Provided is a distance measurement system, including: at least one sound source configured to generate an acoustic signal; an acoustic sensor including a plurality of directional acoustic sensors arranged to have directionalities different from one another; and at least one processor configured to: obtain a directionality of the acoustic signal in a particular direction based on at least one of a sum of output signals of the plurality of directional acoustic sensors or a difference between the output signals of the plurality of directional acoustic sensors, the at least one of the sum or the difference being based on applying a weight to at least one of the output signals; and determine a distance between the acoustic sensor and a reflection surface based on a time for the acoustic signal to arrive at the acoustic sensor in the particular direction after being generated and then reflected from the reflection surface.

System and method for measuring distance using acoustic signal

Provided is a micromechanical resonator including a support beam including a first portion supported on a support member and a second portion spaced apart from the first portion in a length direction of the support beam, and a piezoelectric sensing portion provided between the first portion and the second portion and connecting the first portion to the second portion.

Micromechanical resonator and resonator system including the same

A capacitor structure includes at least one first layer and at least one second layer that are alternately stacked. The at least one first layer includes first electrodes and second electrodes alternately arranged in a first direction, and the at least one second layer includes third electrodes and fourth electrodes alternately arranged in a second direction intersecting the first direction, the third electrodes and the fourth electrodes being electrically connected to the first electrodes and the second electrodes. Each of the first electrodes and the second electrodes includes a base portion and branch portions protruding from the base portion, and the third electrodes and the fourth electrodes are arranged side by side to correspond to the branch portions.

High-efficiency capacitor structure

An etching method for forming a vertical structure is provided. The etching method may include: positioning a mask on a substrate, wherein the mask includes an opening pattern and a compensation pattern, and the compensation pattern is disposed at a corner of two adjacent sides of the opening pattern and includes a concave compensation pattern that is indented from one of the two adjacent sides; and forming the vertical structure on the substrate through the opening pattern of the mask by a dry etching process.

Etching method for forming vertical structure, electronic device including vertical structure formed by the etching method, and method of manufacturing the electronic device

Provided are a method and device for recognizing a speaker by using a resonator. The method of recognizing the speaker includes receiving a plurality of electrical signals corresponding to a speech of the speaker from a plurality of resonators having different resonance bands; obtaining a difference of magnitudes of the plurality of electrical signals; and recognizing the speaker based on the difference of magnitudes of the plurality of electrical signals.

Method and apparatus for recognizing speaker by using a resonator

Provided is a directional acoustic sensor including a support member, and a plurality of resonators extending in a longitudinal direction with respect to the support member, wherein each of the plurality of resonators includes a driver configured to move based on an input sound signal, and a sensor configured to sense a capacitance change based on an air gap that changes based on a movement of the driver.

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.

Sensor interface including resonator and differential amplifier

Disclosed are a directional acoustic sensor, a method of adjusting directional characteristics using the directional acoustic sensor, and a method of attenuating an acoustic signal in a specific direction using the directional acoustic sensor. The directional acoustic sensor includes a plurality of resonance units arranged to have different directionalities and a signal processor configured to adjust directional characteristics by calculating at least one of a sum of and a difference between outputs of the resonance units. In this state, the signal processor attenuates an acoustic signal in a specific direction by using a plurality of directional characteristics obtained by calculating at least one of the sum of and the difference between the outputs of the resonance units at a certain ratio.

Directional acoustic sensor, and methods of adjusting directional characteristics and attenuating acoustic signal in specific direction using the same

A method and apparatus for generating a speaker identification neural network include generating a first neural network that is trained to identify a first speaker with respect to a first voice signal in a first environment, generating a second neural network for identifying a second speaker with respect to a second voice signal in a second environment, and generating the speaker identification neural network by training the second neural network based on a teacher-student training model in which the first neural network is set to a teacher neural network and the second neural network is set to a student neural network.

Method and apparatus for implementing speaker identification neural network

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.

Growing community of inventors

Hwaseong-si, South Korea

Sungchan Kang