Patents by Inventor Choongho RHEE
Choongho RHEE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11359960Abstract: 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.Type: GrantFiled: January 9, 2020Date of Patent: June 14, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sungchan Kang, Cheheung Kim, Choongho Rhee, Hyeokki Hong
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Publication number: 20220173210Abstract: 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.Type: ApplicationFiled: February 14, 2022Publication date: June 2, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeokki HONG, Cheheung KIM, Sungchan KANG, Yongseop YOON, Choongho RHEE
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Patent number: 11341973Abstract: 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.Type: GrantFiled: December 19, 2017Date of Patent: May 24, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung Kim, Sungchan Kang, Sangha Park, Yongseop Yoon, Choongho Rhee
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Publication number: 20220158074Abstract: 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.Type: ApplicationFiled: April 7, 2021Publication date: May 19, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Choongho RHEE, Sungchan KANG, Yongseop YOON
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Publication number: 20220140802Abstract: 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.Type: ApplicationFiled: March 15, 2021Publication date: May 5, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yongseop Yoon, Sungchan Kang, Cheheung Kim, Choongho Rhee
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Patent number: 11317197Abstract: 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.Type: GrantFiled: August 26, 2020Date of Patent: April 26, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung Kim, Sungchan Kang, Hyeokki Hong, Hyunwook Kang, Yongseop Yoon, Choongho Rhee
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Publication number: 20220086570Abstract: 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.Type: ApplicationFiled: February 23, 2021Publication date: March 17, 2022Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyunwook KANG, Sungchan KANG, Cheheung KIM, Choongho RHEE, Hyeokki HONG
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Patent number: 11205441Abstract: Sound signal processing apparatuses and methods of operating the same are provided. The sound signal processing apparatus includes: a band separator configured to separate sound signals into frequency bands; an adder configured to add sound signals; and a signal processor that is arranged between the band separator and the adder and comprises a plurality of signal processing blocks. The band separator includes elements for separating the sound signals into frequency bands, and the elements correspond one to one to the signal processing blocks.Type: GrantFiled: November 19, 2020Date of Patent: December 21, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung Kim, Sungchan Kang, Sangha Park, Yongseop Yoon, Choongho Rhee, Hyeokki Hong
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Patent number: 11199865Abstract: 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.Type: GrantFiled: May 29, 2020Date of Patent: December 14, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyunwook Kang, Cheheung Kim, Hyeokki Hong, Sungchan Kang, Yongseop Yoon, Choongho Rhee
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Publication number: 20210329395Abstract: Provided are a directional acoustic sensor that detects a direction of sound, a method of detecting a direction of sound, and an electronic device including the directional acoustic sensor. The directional acoustic sensor includes a sound inlet through which a sound is received, a sound outlet through which the sound received through the sound inlet is output, and a plurality of vibration bodies arranged between the sound inlet and the sound outlet, in which one or more of the plurality of vibration bodies selectively react to the sound received by the sound inlet according to a direction of the received sound.Type: ApplicationFiled: May 14, 2021Publication date: October 21, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung KIM, Sungchan Kang, Yongseop Yoon, Choongho Rhee, Sangha Park, Hyeokki Hong
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Patent number: 11146240Abstract: A micromechanical resonator includes a support beam having a fixed end, and a free end configured to vibrate. The micromechanical resonator includes a lumped mass disposed on the free end. A height of the lumped mass is greater than a width of the lumped mass.Type: GrantFiled: May 21, 2020Date of Patent: October 12, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yongseop Yoon, Sungchan Kang, Cheheung Kim, Choongho Rhee
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Publication number: 20210281242Abstract: 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.Type: ApplicationFiled: May 21, 2021Publication date: September 9, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sungchan KANG, Cheheung KIM, Sangha PARK, Yongseop YOON, Choongho RHEE
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Patent number: 11112297Abstract: Provided are resonators, a resonator system including the resonators, and a method of manufacturing the resonators. The resonator includes a vibration beam configured to vibrate in response to an external signal, a sensing unit configured to detect the movement of the vibration beam, and a lumped mass unit including a base unit that contacts the vibration beam and a wing unit arranged separately from the vibration beam on the base unit.Type: GrantFiled: April 30, 2019Date of Patent: September 7, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yongseop Yoon, Sungchan Kang, Cheheung Kim, Choongho Rhee, Hyeokki Hong
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Patent number: 11094329Abstract: Provided are a neural network device and a method of operation thereof. The neural network device for speaker recognition may include: a memory configured to store one or more instructions; and a processor configured to generate a trained second neural network by training a first neural network, for separating a mixed voice signal into individual voice signals by executing the one or more instructions, generate a second neural network by adding at least one layer to the trained first neural network, and generate a trained second neural network by training the second neural network, for separating the mixed voice signal into the individual voice signals and for recognizing a speaker of each of the individual voice signals.Type: GrantFiled: September 18, 2018Date of Patent: August 17, 2021Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Sangha Park, Namsoo Kim, Hyungyong Kim, Sungchan Kang, Cheheung Kim, Yongseop Yoon, Choongho Rhee, Hyeokki Hong
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Publication number: 20210219046Abstract: 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.Type: ApplicationFiled: August 26, 2020Publication date: July 15, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung KIM, Sungchan KANG, Hyeokki HONG, Hyunwook KANG, Yongseop YOON, Choongho RHEE
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Patent number: 11050410Abstract: 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.Type: GrantFiled: October 9, 2019Date of Patent: June 29, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sungchan Kang, Cheheung Kim, Sangha Park, Yongseop Yoon, Choongho Rhee
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Patent number: 11039262Abstract: Provided are a directional acoustic sensor that detects a direction of sound, a method of detecting a direction of sound, and an electronic device including the directional acoustic sensor. The directional acoustic sensor includes a sound inlet through which a sound is received, a sound outlet through which the sound received through the sound inlet is output, and a plurality of vibration bodies arranged between the sound inlet and the sound outlet, in which one or more of the plurality of vibration bodies selectively react to the sound received by the sound inlet according to a direction of the received sound.Type: GrantFiled: October 17, 2018Date of Patent: June 15, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung Kim, Sungchan Kang, Yongseop Yoon, Choongho Rhee, Sangha Park, Hyeokki Hong
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Publication number: 20210157351Abstract: 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.Type: ApplicationFiled: May 29, 2020Publication date: May 27, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyunwook KANG, Cheheung KIM, Hyeokki HONG, Sungchan KANG, Yongseop YOON, Choongho RHEE
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Patent number: 10996250Abstract: A spectrum analyzer includes: a support substrate; and a plurality of resonators that have center frequencies different from each other, one end of each of the plurality of resonators being fixed to the support substrate. The plurality of resonators are arranged so that an interval between resonators having adjacent center frequencies is secured by a certain value or greater, thus reducing coupling and increasing analysis accuracy.Type: GrantFiled: December 26, 2019Date of Patent: May 4, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Cheheung Kim, Sungchan Kang, Yongseop Yoon, Choongho Rhee
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Publication number: 20210126615Abstract: A micromechanical resonator includes a support beam having a fixed end, and a free end configured to vibrate. The micromechanical resonator includes a lumped mass disposed on the free end. A height of the lumped mass is greater than a width of the lumped mass.Type: ApplicationFiled: May 21, 2020Publication date: April 29, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yongseop YOON, Sungchan KANG, Cheheung KIM, Choongho RHEE