公开(公告)号：US20240155948A1

公开(公告)日：2024-05-09

申请号：US18410837

申请日：2024-01-11

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. LESSO ,  Anthony S. DOY

IPC: H10N30/80 ,  B06B1/02

CPC classification number: H10N30/802 ,  B06B1/0253 ,  B06B2201/55

Abstract: The present disclosure relates to circuitry for driving a piezoelectric transducer to generate an audio output. The circuitry comprises pre-processor circuitry configured to process an input audio signal to generate a processed signal; driver circuitry coupled to the pre-processor circuitry and configured to generate a drive signal, based on the processed signal, for driving the piezoelectric transducer; and processor circuitry configured to determine a resonant frequency of the piezoelectric transducer. The pre-processor circuitry is configured to process the input audio signal based on the determined resonant frequency so as to generate the processed signal.

公开(公告)号：US20240049780A1

公开(公告)日：2024-02-15

申请号：US17762421

申请日：2021-11-16

Applicant: KT&G CORPORATION

Inventor： Wonkyeong LEE ,  Heon Jun JEONG ,  Dong Sung KIM ,  Jae Sung CHOI

IPC: A24F40/05 ,  A24F40/50 ,  B06B1/02

CPC classification number: A24F40/05 ,  A24F40/50 ,  B06B1/0253 ,  B06B2201/55

Abstract: An aerosol generating device includes a vibrator configured to vibrate to generate an aerosol from an aerosol generating material, a controller configured to control the vibrator to vibrate at a target vibration speed, and a feedback circuit configured to detect an electrical signal representing a frequency response of the vibrator that changes according to an operating environment of the vibrator and output a feedback signal based on the detected electrical signal, and the controller may adjust the vibration speed of the vibrator based on the feedback signal output from the feedback circuit.

公开(公告)号：US20240024649A1

公开(公告)日：2024-01-25

申请号：US18040610

申请日：2021-08-04

Applicant: Alpheus Medical, Inc.

Inventor： Vijay AGARWAL ,  Braden ELIASON ,  Jeremy LING ,  John BALLARD ,  Gregg MILLER

IPC: A61M37/00 ,  A61N7/00 ,  B06B1/02 ,  B06B1/06

CPC classification number: A61M37/0092 ,  A61N7/00 ,  B06B1/0215 ,  B06B1/0625 ,  A61N2007/0086 ,  B06B2201/55 ,  B06B2201/76

Abstract: Ultrasound transducer element arrays using acoustic ensonification drive patterns via a patient interface for sonosensitizer activation in sonodynamic therapy. Incoherent acoustic field generation varying phase, frequencies, and/or amplitude via controlled delivery of low intensity planar acoustic waves. Method includes generating a first and a second signal to generate respective acoustic ensonification drive patterns with phase, frequency, and amplitude and generating at least one relative phase, frequency or amplitude difference to generate a third incoherent acoustic ensonification pattern to activate a sonosensitizer. Calibration and complementary therapy procedures to improve cell susceptibility of cells to sonodynamic therapy are disclosed.

公开(公告)号：US20230347381A1

公开(公告)日：2023-11-02

申请号：US17796467

申请日：2021-02-02

Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO

Inventor： Paul Louis Maria Joseph VAN NEER ,  Arno Willem Frederik VOLKER ,  Gerwin Hermanus GELINCK ,  Hylke Broer AKKERMAN ,  Antonius Maria Bernardus VAN MOL

IPC: B06B1/06 ,  B06B1/02

CPC classification number: B06B1/0611 ,  B06B1/0215 ,  B06B1/0292 ,  B06B2201/20 ,  B06B2201/51 ,  B06B2201/55

Abstract: An ultrasonic transducer is described that includes a stack of at least two membranes attached to a substrate. An electric circuit is coupled to the electrodes with a controller configured to apply a first electric signal to a first electrode on the first membrane, and a different, second electric signal to a second electrode on the second membrane. The first and second electric signals are configured to apply a varying voltage between the first electrode and the second electrode during a respective vibration cycle of the membranes. The first electrode on the first membrane is configured to interact with the second electrode on the second membrane by a varying electrostatic force during the respective vibration cycle depending on the varying voltage.

公开(公告)号：US11759822B2

公开(公告)日：2023-09-19

申请号：US16867298

申请日：2020-05-05

Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

Inventor： Zdenek Axman ,  Tomas Suchy ,  Petr Kamenicky

IPC: B06B1/02

CPC classification number: B06B1/0215 ,  B06B2201/30 ,  B06B2201/55

Abstract: Embodiments include a primary short circuit (PSC) coupled to a primary side of a transformer and a dampening element, coupled to a transducer coupled to a secondary side of the transformer, configured to dampen a received signal during a portion of a reverberation period. The PSC and the dampening element may be activated substantially simultaneously. Activation of the PSC circuit mitigates a parallel resonance otherwise arising, in part, in the transducer, but, increases the received signal by a DC shift voltage. The dampening element dampens the DC shift voltage. The received signal may be dampened prior to amplification of the received signal by an amplifier. The dampening facilitates earlier and more precise measurement, during the reverberation period, of at least one operating characteristic for the PAS sensor. Another embodiment prevents the DC shift voltage by selectively activating the PSC within a determined time of a zero-crossing of a given signal.

公开(公告)号：US11684335B2

公开(公告)日：2023-06-27

申请号：US17092929

申请日：2020-11-09

Applicant: Georgia Tech Research Corporation

Inventor： Chengzhi Shi

IPC: A61B8/08 ,  A61B8/00 ,  B06B1/02

CPC classification number: A61B8/0808 ,  A61B8/4281 ,  A61B8/4483 ,  B06B1/0253 ,  A61B8/5207 ,  B06B2201/55 ,  B06B2201/76

Abstract: Disclosed herein are acoustic transmission systems comprising an acoustic wave generator configured to generate an acoustic wave and propagate the acoustic wave through a tissue of a specimen, and a non-Hermitian complementary metamaterial (NHCMM) configured to add a first amount of energy amplification coherently to the acoustic wave to account for energy loss in the acoustic wave as a result of the wave propagating through the tissue of the specimen. The acoustic wave generator can be an ultrasound generator, and the tissue can be a cranium.

公开(公告)号：US20230161414A1

公开(公告)日：2023-05-25

申请号：US18152402

申请日：2023-01-10

Applicant: Alps Alpine Co., Ltd.

Inventor： Hajime SUZUKI ,  Kunio SATO ,  Shinichi SAGAWAI ,  I KA

IPC: G06F3/01 ,  B06B1/02

CPC classification number: G06F3/016 ,  B06B1/0253 ,  B06B2201/55

Abstract: An input apparatus includes an operating unit on which an input operation is performed by an operator, a detecting unit configured to detect the input operation performed on the operating unit, an actuator configured to impart vibration to the operating unit, and a control unit configured to supply a drive signal to the actuator according to a result of detection performed by the detecting unit. The control unit supplies, as the drive signal, a single pulse signal including a triangular wave or a sine wave and having a signal waveform in which a rising interval and a falling interval are asymmetric about a peak position to the actuator.

公开(公告)号：US11648312B2

公开(公告)日：2023-05-16

申请号：US16955457

申请日：2018-12-21

Applicant: Freedom Waves S.R.L ,  Pierangela Giustetto

Inventor： Pierangela Giustetto ,  Daniele Faletto

IPC: A61K41/00 ,  G16H20/17 ,  A61N7/00 ,  B06B1/02 ,  G16H40/67 ,  G16H70/60 ,  G16H50/50 ,  G16H50/70 ,  G16H70/40 ,  G16H40/40 ,  A61P35/00 ,  A61K31/337 ,  A61K31/4745 ,  A61K31/513 ,  A61K31/704

CPC classification number: A61K41/0047 ,  A61K31/337 ,  A61K31/4745 ,  A61K31/513 ,  A61K31/704 ,  A61N7/00 ,  A61P35/00 ,  B06B1/0215 ,  G16H20/17 ,  G16H40/40 ,  G16H40/67 ,  G16H50/50 ,  G16H50/70 ,  G16H70/40 ,  G16H70/60 ,  A61N2007/0004 ,  A61N2007/0078 ,  B06B2201/55 ,  B06B2201/76

Abstract: System for inducing sonoporation of a drug into cancer cells in a tumor and method thereof, the system comprising a generator configured to provide electrical energy at an ultrasound frequency; an ultrasound probe electrically connected to the generator and configured to convert the electrical energy into low intensity pulsed ultrasonic waves defined by operation parameters, said operation parameters comprising the frequency, the duty cycle, the operation time of the ultrasonic waves; an input device enabling an operator to enter configuration data comprising: type of tumor, type of drug, localization of secondary tumor, anthropometric measurements and grade of tumor, and a processor configured to determine the values of the operation parameters on the basis of the entered configuration data and control the generator and the ultrasound probe to operate according to said determined values, wherein the value of the frequency is determined on the basis of the type of tumor, the localization of the tumor, the grade of tumor and the anthropometric measurements, the value of the duty cycle is determined on the basis of the drug, the type of tumor and the grade of the tumor, and the value of said operation time being determined on the basis of at least the type of tumor and the type of drug.

公开(公告)号：US10005105B2

公开(公告)日：2018-06-26

申请号：US14535574

申请日：2014-11-07

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Satoshi Takahata

IPC: B60B1/00 ,  B06B1/02 ,  G01S7/524 ,  G01S15/10

CPC classification number: B06B1/0207 ,  B06B2201/30 ,  B06B2201/55 ,  G01S7/524 ,  G01S15/10 ,  G01S15/104

Abstract: An ultrasonic sensor includes a signal generation circuit, an amplifier, and a matching circuit as a transmission-side circuit. The signal generation circuit includes a driving signal generation circuit that generates a driving signal for transmitting ultrasonic waves from an ultrasonic transducer for transmission and reception and a reverberation suppression signal generation circuit that generates a reverberation suppression signal for suppressing reverberation occurring at the ultrasonic transducer from which the ultrasonic waves are transmitted. The reverberation suppression signal generation circuit generates the reverberation suppression signal having a frequency of 1/2 times the frequency of the driving signal and applies the reverberation suppression signal to the ultrasonic transducer at a time delayed from the driving signal by a half wavelength. With the above configuration, an ultrasonic sensor driving circuit capable of reducing the duration of the reverberation occurring at the ultrasonic transducer is provided.

公开(公告)号：US20180091235A1

公开(公告)日：2018-03-29

申请号：US15818068

申请日：2017-11-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroshi Matsuda

IPC: H04B11/00 ,  G01S15/89 ,  G01N29/06 ,  A61B8/00 ,  B06B1/02 ,  B06B1/06 ,  G01N29/26 ,  G01S7/52

CPC classification number: H04B11/00 ,  A61B8/4405 ,  A61B8/4411 ,  A61B8/4427 ,  A61B8/4483 ,  B06B1/0207 ,  B06B1/0622 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/76 ,  G01N29/0654 ,  G01N29/262 ,  G01S7/5202 ,  G01S7/5208 ,  G01S7/52082 ,  G01S15/8925

Abstract: An ultrasonic measurement apparatus has an ultrasonic transducer device including an ultrasonic element array, a first through n-th first end-side terminal XA1 to XAn provided to a first end side, and a first through n-th second end-side terminal XB1 to XBn provided to a second end side opposing the first end side; a first transmission circuit outputting first drive signals VTA1 to VTAn to the first through n-th first end-side terminals XA1 to XAn; and a second transmission circuit outputting second drive signals VTB1 to VTBn to the first through n-th second end-side terminals XB1 to XBn.