公开(公告)号：US3524082A

公开(公告)日：1970-08-11

申请号：US3524082D

申请日：1967-12-01

Applicant: HAL C METTLER

Inventor： METTLER HAL C

IPC: B06B1/02 ,  H01V7/00

CPC classification number: B06B1/0246 ,  B06B2201/55 ,  B06B2201/71

公开(公告)号：US3487237A

公开(公告)日：1969-12-30

申请号：US3487237D

申请日：1967-07-07

Applicant: BRANSON INSTR

Inventor： KRENKE VINCENT GERALD

IPC: B06B1/02 ,  H02N11/00

CPC classification number: B06B1/0253 ,  B06B2201/55

公开(公告)号：US3296511A

公开(公告)日：1967-01-03

申请号：US30820863

申请日：1963-09-11

Applicant: PHILIPS CORP

Inventor： DER BURGT CORNELIS MARTINUS VA ,  STEPHANUS JOSEPHUS HERMANUS

IPC: B06B1/02 ,  H02M7/44

CPC classification number: H02M7/445 ,  B06B1/0253 ,  B06B2201/55 ,  B06B2201/58

公开(公告)号：US20240359212A1

公开(公告)日：2024-10-31

申请号：US18638045

申请日：2024-04-17

Applicant: Infineon Technologies AG

Inventor： Klaus ELIAN ,  Daniel OBERMEIER ,  Emanuel STOICESCU

IPC: B06B1/02 ,  B06B1/06

CPC classification number: B06B1/0292 ,  B06B1/0207 ,  B06B1/0622 ,  B06B2201/51 ,  B06B2201/55

Abstract: An ultrasonic device is provided. The ultrasonic device includes at least one micromachined ultrasonic transducer (MUT) and processing circuitry electrically coupled to the at least one MUT. The at least one MUT and the processing circuitry are packed in an embedded wafer level ball grid array (eWLB) package. An acoustic coupling medium for acoustic coupling of the at least one MUT to an external application surface is formed on the at least one MUT.

公开(公告)号：US12076749B2

公开(公告)日：2024-09-03

申请号：US17012713

申请日：2020-09-04

Applicant: D.O.R.C. Dutch Ophthalmic Research Center (International) B.V.

Inventor： Kees Bijkerk ,  Pieter Van 'T Hof ,  John Peter Kuntz ,  Alejandro Enrique Viteri Vogel

IPC: A61B17/32 ,  A61F9/007 ,  B06B1/02

CPC classification number: B06B1/0253 ,  A61F9/00745 ,  B06B1/0261 ,  B06B2201/55 ,  B06B2201/76

Abstract: The invention relates to a phaco driver system for controlling operation of an ophthalmic surgical phacoemulsification device. The phaco driver system comprises a resonant output circuit for generating a transducer voltage for driving an ultrasonic transducer of the ophthalmic surgical phacoemulsification device. Further, the phaco driver system includes a bridge unit for generating a bridge output signal for feeding the resonant output circuit, the bridge output signal being based on a composition of the first and second phase signals having a fixed mutual phase difference.

公开(公告)号：US12053798B2

公开(公告)日：2024-08-06

申请号：US17102002

申请日：2020-11-23

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John Paul Lesso

IPC: B06B1/02 ,  H03K17/687 ,  H10N30/20

CPC classification number: B06B1/0207 ,  H03K17/6871 ,  B06B2201/55 ,  H03K2217/0081 ,  H10N30/20

Abstract: Drive circuitry for driving a piezoelectric transducer, the circuitry comprising: an inductor; a first reservoir capacitor; a switch network; and control circuitry configured to control operation of the switch network to selectively couple the inductor to one of a power supply, the first reservoir capacitor and the piezoelectric transducer, wherein the circuitry is operative in a discontinuous mode to transfer charge between the reservoir capacitor and the piezoelectric transducer, and wherein a polarity of the first reservoir capacitor is opposite to a polarity of the power supply.

公开(公告)号：US20240246115A1

公开(公告)日：2024-07-25

申请号：US18016264

申请日：2022-02-24

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Yuju CHEN

IPC: B06B1/06 ,  B60K35/25 ,  G02F1/1333 ,  G06F3/01 ,  H02N2/00

CPC classification number: B06B1/0629 ,  G06F3/016 ,  H02N2/0075 ,  B06B2201/55 ,  B60K35/25 ,  B60K2360/1434 ,  B60K2360/816 ,  G02F1/13338

Abstract: Embodiments of the present disclosure provide a vibration panel and a touch display apparatus. The vibration panel includes: a fixed substrate; a piezoelectric device, located on the fixed substrate, and configured to generate an inverse piezoelectric effect to generate vibration under an action of an alternating voltage signal; and a vibration transmission structure, located on the piezoelectric device, and configured to transmit force generated during vibration of the piezoelectric device.

公开(公告)号：US11969554B2

公开(公告)日：2024-04-30

申请号：US17092827

申请日：2020-11-09

Applicant: The Trustees of Dartmouth College ,  FACEBOOK, INC.

Inventor： Zi Chen ,  John X. J. Zhang ,  Frances Lau ,  Ali Israr

IPC: H10N30/857 ,  A61F2/70 ,  A61M21/00 ,  B06B1/02 ,  B06B1/06 ,  A61F2/54 ,  A61F2/68

CPC classification number: A61M21/00 ,  A61F2/70 ,  B06B1/0238 ,  B06B1/0688 ,  H10N30/857 ,  A61F2002/543 ,  A61F2002/6827 ,  A61M2021/0022 ,  A61M2205/0294 ,  B06B2201/55 ,  B06B2201/76

Abstract: A haptic stimulator includes a multilayer sheet with a piezoelectric or electroactive polymer layer adapted to mechanically deform upon application of voltage, the multilayer sheet secured to a substrate, and a source of electrical stimulation coupled to drive electrodes on the polymer layer with an AC signal to vibrate the polymer layer. In particular embodiments, the polymer contains polyvinylidene fluoride, and electrodes are patterned to control local electric fields. Another haptic stimulator has first and second electrodes with an air gap and an insulating sheet between first and second electrodes, with an AC voltage driver connecting to the electrodes. In a method of providing haptic stimulation to skin an alternating current supply drives first and second electrodes, the electrodes disposed upon either a piezoelectric or electroactive polymer sheet, vibrating the polymer layer by driving the electrodes; and coupling vibrations of the polymer layer to the sensate skin.

公开(公告)号：US11937509B2

公开(公告)日：2024-03-19

申请号：US16951032

申请日：2020-11-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： John P. Lesso ,  Anthony S. Doy

IPC: B06B1/02 ,  H10N30/80

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

Abstract: The present disclosure relates to circuitry for driving a piezoelectric transducer. The circuitry comprises pre-processor circuitry configured to process an input 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 signal based on the determined resonant frequency so as to generate the processed signal.

公开(公告)号：US20230405634A1

公开(公告)日：2023-12-21

申请号：US18456973

申请日：2023-08-28

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 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.