公开(公告)号：US20230277155A1

公开(公告)日：2023-09-07

申请号：US18315647

申请日：2023-05-11

Applicant: Georgia Tech Research Corporation

Inventor： Chengzhi SHI

IPC: A61B8/08 ,  A61B8/00 ,  B06B1/02

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

Abstract: A non-Hermitian complementary metamaterial (NHCMM). Acoustic transmission systems including an acoustic wave generator configured to generate an acoustic wave and propagate the acoustic wave through a tissue of a specimen, and the NHCMM, which is 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：US11717853B2

公开(公告)日：2023-08-08

申请号：US17460509

申请日：2021-08-30

Applicant: Stryker Corporation

Inventor： Adam D. Downey ,  Neal R. Butler ,  Scott A. Rhodes

IPC: B06B1/02 ,  A61F9/007 ,  A61B17/32 ,  H03F1/02 ,  A61B17/00 ,  A61B90/98 ,  A61B17/14 ,  A61B18/14 ,  A61B18/00 ,  A61B18/18 ,  H02M3/158 ,  H03F3/45

CPC classification number: B06B1/0253 ,  A61B17/320068 ,  A61F9/00745 ,  B06B1/0246 ,  H03F1/0216 ,  A61B17/142 ,  A61B18/14 ,  A61B90/98 ,  A61B2017/0003 ,  A61B2017/00017 ,  A61B2017/00199 ,  A61B2017/00477 ,  A61B2017/00973 ,  A61B2017/32007 ,  A61B2017/320069 ,  A61B2018/00029 ,  A61B2018/00577 ,  A61B2018/1807 ,  A61B2217/005 ,  A61B2217/007 ,  B06B2201/55 ,  B06B2201/76 ,  H02M3/158 ,  H03F3/45475 ,  H03F2200/541

Abstract: A control console for a powered surgical tool. The console includes a transformer that supplies the drive signal to the surgical tool. A linear amplifier with active resistors selectively ties the ends of the transformer primary winding between ground and the open circuit state. Feedback voltages from the transformer windings regulate the resistances of the active resistors.

公开(公告)号：US20230240889A1

公开(公告)日：2023-08-03

申请号：US17590184

申请日：2022-02-01

Applicant: JOHNSON & JOHNSON SURGICAL VISION, INC.

Inventor： Amit Fuchs ,  Assaf Govari ,  Eran Aharon

IPC: A61F9/007 ,  B06B1/02

CPC classification number: A61F9/00745 ,  B06B1/0276 ,  B06B2201/55 ,  B06B2201/76

Abstract: A system and method for driving a medical probe. The system including a processor configured to apply respective harmonic electrical signals to two or more piezoelectric crystals coupled with a tip of the medical probe so as to cause the tip to vibrate; and a balancer, which is configured to iteratively adjust the signals to equalize a selected parameter of the signals, so as to cause the tip to vibrate at a predefined trajectory. The method including applying respective harmonic electrical signals to two or more piezoelectric crystals coupled with a tip of the medical probe so as to cause the tip to vibrate. The signals are iteratively adjusted to equalize a selected parameter of the signals, so as to cause the tip to vibrate at a predefined trajectory.

公开(公告)号：US20190196010A1

公开(公告)日：2019-06-27

申请号：US16226840

申请日：2018-12-20

Applicant: AISIN SEIKI KABUSHIKI KAISHA

Inventor： Ippei SUGAE ,  Eiji NIWA ,  Hisashi INABA

IPC: G01S15/10 ,  G01S7/527 ,  G01S15/93 ,  B06B1/02

CPC classification number: G01S15/104 ,  B06B1/0238 ,  B06B2201/55 ,  G01S7/521 ,  G01S7/5273 ,  G01S15/025 ,  G01S15/04 ,  G01S15/32 ,  G01S15/325 ,  G01S15/931 ,  G01S2013/9357 ,  G01S2013/936

Abstract: An obstacle detection sensor includes: a controller configured to determine a detection condition of an obstacle on a road; a distance sensor unit configured to acquire distance information by oscillating a vibration wave and receiving a reflected wave of the oscillated vibration wave; a communication unit configured to communicate with an outside to acquire road surface information; and a storage unit configured to store detection relationship information for identifying the obstacle based on the distance information, in which the controller compares the detection relationship information read from the storage unit with the distance information and the road surface information acquired from the distance sensor unit and the communication unit to determine the detection condition.

公开(公告)号：US20180190086A1

公开(公告)日：2018-07-05

申请号：US15395726

申请日：2016-12-30

Applicant: Immersion Corporation

Inventor： Mansoor Alghooneh ,  Vahid Khoshkava ,  Juan Manuel Cruz Hernandez ,  Neil T. Olien ,  Robert A. Lacroix

IPC: G08B6/00 ,  G06F3/01

CPC classification number: G08B6/00 ,  B06B1/045 ,  B06B1/06 ,  B06B2201/52 ,  B06B2201/55 ,  G06F3/016

Abstract: A haptic actuator comprising a base and a haptic transducer at least partially suspended by the base. The haptic transducer comprises a substrate and a smart material operably connected to the substrate. The smart material has resonance in response to an electrical signal having a determined frequency, and the resonance causes the haptic transducer to vibrate and deliver a haptic effect.

公开(公告)号：US10006804B2

公开(公告)日：2018-06-26

申请号：US14934904

申请日：2015-11-06

Applicant: REACH SURGICAL INC. ,  China Surgical (Shanghai) Corporation

Inventor： Yadong Zhang ,  Qizhang Chen

IPC: G01H13/00 ,  H01L41/09 ,  H04R3/04 ,  H04R29/00 ,  G01H11/06

CPC classification number: G01H13/00 ,  B06B2201/54 ,  B06B2201/55 ,  G01H11/06 ,  H01L41/09 ,  H04R3/04 ,  H04R29/001

Abstract: A system for searching for a resonant frequency of a transducer, comprising: an initializing unit (11), a phase determining unit (12), an interval hopping control unit (13), a hopping interval generating unit (15), a frequency output control unit (17), a phase acquiring unit (16), and a resonant frequency obtaining unit (14). The search range of the interval for the last search can be narrowed by at least half thereof in each frequency hopping, thus allowing for reduced amount of searches.

公开(公告)号：US09995821B2

公开(公告)日：2018-06-12

申请号：US14883585

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Hao-Yen Tang ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh

IPC: G01S7/52 ,  B06B1/06 ,  H01L41/047 ,  G10K11/34 ,  G06F3/041 ,  G06F3/043 ,  G06K9/00 ,  G10K11/26 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  H01L41/08 ,  B06B1/02

CPC classification number: G01S7/5208 ,  B06B1/0207 ,  B06B1/0607 ,  B06B1/0644 ,  B06B1/0666 ,  B06B2201/20 ,  B06B2201/55 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  G01S15/8915 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/043 ,  G06F3/0436 ,  G06F2203/04101 ,  G06K9/0002 ,  G06K9/00335 ,  G10K11/26 ,  G10K11/34 ,  G10K11/341 ,  G10K11/346 ,  H01L41/047 ,  H01L41/08

Abstract: An apparatus includes an array of pixels, each pixel including in-cell pixel logic and a piezoelectric micromechanical ultrasonic transducer (PMUT) element, each in-cell pixel logic being communicatively coupled with at least one adjacent pixel in the array. Transceiver electronics may operate the array in a selectable one of a first mode and a second mode. In the first mode, the array may generate a substantially plane ultrasonic wave. In the second mode, the array may generate, from at least one superpixel region, a focused beam of relatively high acoustic pressure, each superpixel region including at least one inner pixel disposed in a central portion of the superpixel region and at least a first group of outer pixels disposed in an outer portion of the superpixel region. The transceiver electronics may be configured to operate the array by configuring at least one in-cell pixel logic.

公开(公告)号：US09984991B2

公开(公告)日：2018-05-29

申请号：US14800738

申请日：2015-07-16

Applicant: Seiko Epson Corporation

Inventor： Hisahiro Ito ,  Shoichiro Kasahara

IPC: H01L41/09 ,  H01L23/00 ,  B06B1/06 ,  B06B1/02

CPC classification number: H01L24/49 ,  B06B1/0207 ,  B06B1/0238 ,  B06B1/0648 ,  B06B2201/40 ,  B06B2201/55 ,  B06B2201/70 ,  H01L24/48 ,  H01L2224/05554 ,  H01L2224/4813 ,  H01L2224/48227 ,  H01L2224/49171 ,  H01L2924/00014 ,  H01L2924/141 ,  H01L2924/143 ,  H01L2924/15153 ,  H01L2924/1517 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

Abstract: In order to reduce crosstalk between analog and digital signals, a circuit device includes a vibrator element, a semiconductor device, and a package. In the semiconductor device, an analog pad is provided along a first side facing in a first direction when the semiconductor device is seen in plan view. In addition, a digital pad is provided along aside facing in a second direction opposite to the first direction, that is, a second side facing the first side. In the package, an analog terminal which is connected to the analog pad is provided on a first side of the package facing in the first direction. In addition, a digital terminal which is connected to the digital pad is provided on a second side of the package facing in the second direction.

公开(公告)号：US09931670B2

公开(公告)日：2018-04-03

申请号：US14701242

申请日：2015-04-30

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Jun Amano

IPC: H01L41/107 ,  B06B1/02 ,  H01L29/786 ,  B06B1/06 ,  H01L29/49

CPC classification number: B06B1/0207 ,  B06B1/0622 ,  B06B2201/55 ,  H01L29/4908 ,  H01L29/78603 ,  H01L29/78648 ,  H01L29/78651 ,  H01L29/78684

Abstract: An ultrasonic transmitter includes a piezoelectric integrated thin film transistor (PITFT). The transistor includes a top gate electrode, a bottom gate electrode, and a piezoelectric layer. The piezoelectric layer generates vibrations in response to a voltage applied across the top gate electrode and the bottom gate electrode. The transistor includes micro-electrical-mechanical systems (MEMS) mechanically coupled to the PITFT. The MEMS includes a resonator that transmits ultrasonic pressure waves based on the vibrations.

公开(公告)号：US20180078969A1

公开(公告)日：2018-03-22

申请号：US15560927

申请日：2016-03-16

Applicant: BAE SYSTEMS plc

Inventor： LIONEL WILLIAM JOHN KENT ,  COLIN JAMES HARPER

IPC: B06B1/02 ,  H04B11/00

CPC classification number: B06B1/0207 ,  B06B2201/55 ,  H04B11/00

Abstract: There is disclosed an acoustic transducer for communications within an operational bandwidth, the transducer comprising:A signal generator for generating a signal at a centre-frequency within the operational bandwidth;A piezoelectric element having a dielectric constant that varies with temperature;A driving electrode at the surface of the piezoelectric element;A matching network, having a natural frequency at a given temperature, and operable to transfer the signal from the signal generator to the piezoelectric element whilst mitigating electrical loss, the matching network being connected to the driving electrode;Wherein the matching network comprises a temperature compensating capacitor connected in parallel with the piezoelectric element, the temperature compensating capacitor being for counteracting temperature-induced changes to the dielectric constant of the piezoelectric element such that the electrical natural frequency of the transducer is substantially constant over a range of temperatures.