Abstract: Provided is an integrated circuit including an analog-to-digital converter (ADC) configured to convert an analog signal to a digital signal; and a digital signal processor (DSP) configured to process the digital signal, wherein the ADC generates a power source during a process for converting the analog signal into the digital signal and supplies power to the DSP through the power source.

Abstract: Provided are a sound source separation apparatus and a sound source separation method. The sound source separation apparatus includes a plurality of directional vibrators configured such that one or more of the plurality of directional vibrators react to a sound based on a direction of the sound. The sound source separation apparatus is configured to determine directions of a first sound source and a second sound source that are different from each other, based on strengths of output signals of the plurality of directional vibrators, and select a first directional vibrator and a second directional vibrator that are different from each other from among the plurality of directional vibrators to separately obtain a sound coming from the first sound source and a sound coming from the second sound source.

Abstract: A piezoelectric micromechanical resonator includes a supporting beam including a fixed edge that is fixed to a supporting member and a free edge opposite the fixed edge, a piezoelectric sensor including an edge attached to the supporting member, the piezoelectric sensor further including a lower electrode, a piezoelectric unit, and an upper electrode sequentially stacked on a surface of the supporting beam, and a lumped mass provided on the surface of the supporting beam at a side of the supporting beam including the free edge, the upper electrode having a Young's modulus smaller than a Young's modulus of the lower electrode.

Abstract: Provided are sound direction detection sensors capable of detecting an input direction of sound and electronic apparatuses including the same.

Abstract: Provided are a resonator, a method of manufacturing the resonator, and a strain sensor and a sensor array including the resonator. The resonator is provided to extend in a lengthwise direction from a support. The resonator includes a single crystal material and is provided to extend in a crystal orientation that satisfies at least one from among a Young's modulus and a Poisson's ratio, from among crystal orientations of the single crystal material.

Abstract: Provided is an integrated circuit including an analog-to-digital converter (ADC) configured to convert an analog signal to a digital signal; and a digital signal processor (DSP) configured to process the digital signal, wherein the ADC generates a power source during a process for converting the analog signal into the digital signal and supplies power to the DSP through the power source.

Abstract: A spatial audio recording device includes: a plurality of directional vibrating bodies arranged such that at least one of the plurality of directional vibrating bodies selectively reacts according to a direction of input audio; a non-directional vibrating body configured to react regardless of the direction of the input audio; a read-out circuit configured to output a directional audio signal including a plurality of channels based on reactions of the directional vibrating bodies and a non-directional audio signal based on a reaction of the non-directional vibrating body; and a processor configured to correct the directional audio signal based on the non-directional audio signal.

Abstract: 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.

Abstract: Provided are a sound source separation apparatus and a sound source separation method. The sound source separation apparatus includes a plurality of directional vibrators configured such that one or more of the plurality of directional vibrators react to a sound based on a direction of the sound. The sound source separation apparatus is configured to determine directions of a first sound source and a second sound source that are different from each other, based on strengths of output signals of the plurality of directional vibrators, and select a first directional vibrator and a second directional vibrator that are different from each other from among the plurality of directional vibrators to separately obtain a sound coming from the first sound source and a sound coming from the second sound source.

Abstract: 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.

Abstract: Provided are sound direction detection sensors capable of detecting an input direction of sound and electronic apparatuses including the same. A sound direction detection sensor includes a sound inlet receiving input sound, a sound outlet outputting the sound input through the sound inlet, and a plurality of directional vibrators arranged between the sound inlet and the sound outlet in such a manner that at least one directional vibrator selectively reacts based on a direction of the sound input through the sound inlet, wherein a direction perpendicular to a direction of a directional vibrator having a lowest output in magnitude among the plurality of directional vibrators is determined as an input direction of the sound.

Abstract: 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.

Abstract: A directional microphone is provided which includes a substrate having a cavity that penetrates therethrough, a resonator array of at least one resonator, and a cover member. Each of the resonator array and the cover member covers covering at least a part of the cavity.

Abstract: A multi resonator system is provided including a support substrate and a plurality of multi resonators. Each of the plurality of multi resonators includes a plurality of resonators, and one end of each of the plurality of resonators is fixed to the support substrate. Center frequencies of different ones of the plurality of multi resonators are different from each other, and the plurality of resonators within each individual multi resonator all have a same center frequency.

Abstract: Provided are sound direction detection sensors capable of detecting an input direction of sound and electronic apparatuses including the same. A sound direction detection sensor includes a sound inlet receiving input sound, a sound outlet outputting the sound input through the sound inlet, and a plurality of directional vibrators arranged between the sound inlet and the sound outlet in such a manner that at least one directional vibrator selectively reacts based on a direction of the sound input through the sound inlet, wherein a direction perpendicular to a direction of a directional vibrator having a lowest output in magnitude among the plurality of directional vibrators is determined as an input direction of the sound.

Abstract: An auto voice trigger method and an audio analyzer employing the same are provided. The auto voice trigger method includes: receiving a signal by at least one resonator microphone included in an array of a plurality of resonator microphones with different frequency bandwidths; analyzing the received signal and determining whether the received signal is a voice signal; and when it is determined that the received signal is the voice signal, waking up a whole system to receive and analyze a wideband signal.

Abstract: 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.

Abstract: 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.

Abstract: Provided are micromechanical resonators and resonator systems including the micromechanical resonators. The micromechanical resonators may each include a supporting beam including a fixed end fixed on a supporting member and a loose end configured to vibrate, and a lumped mass arranged on the loose end, wherein the loose end has a width greater than a width of the fixed end, and a width of the lumped mass is greater than that the width of the fixed end.

Abstract: An integrated circuit includes a highest class core circuit that has a positive power supply terminal connected to a positive power supply terminal of an external power source, and is configured to receive a first supply voltage which is at least a portion of a an input supply voltage that is provided from the external power source based on an operation throughput; and a lowest class core circuit that has a positive power supply terminal connected to a negative power supply terminal of an adjacent upper class core circuit, has a negative power supply terminal connected to a negative power supply terminal of the external power source, and is configured to receive a second supply voltage which is at least a portion of a part of the input supply voltage that excludes the first supply voltage.