公开(公告)号：US3938142A

公开(公告)日：1976-02-10

申请号：US474455

申请日：1974-05-29

Applicant: Wolfgang Schroder

Inventor： Wolfgang Schroder

IPC: B06B1/02 ,  H03B5/36 ,  H03J9/04 ,  G08B3/00

CPC classification number: B06B1/0269 ,  H03B5/366 ,  H03J9/04 ,  B06B2201/70

Abstract: A polarizing D.C. voltage is generated at the capacitance of the ultrasonic transducer and then short-circuited by a parallel-arranged electronic switch controlled by the command signal frequency to be radiated. A direct current stored in an inductance during this short-circuit phase is supplied via a decoupling diode to the electrodes of the ultrasonic transducer upon opening of the switch, and after having been transformed into a voltage. The polarizing D.C. voltage is thus re-generated periodically.

Abstract translation: 在超声波换能器的电容下产生极化D.C.电压，然后由被放射的指令信号频率控制的并联布置的电子开关短路。 在该短路相位期间存储在电感中的直流电通过去耦二极管被提供给超声波换能器的电极，并且在转换成电压之后。 因此，极化的直流电压被周期性重新产生。

公开(公告)号：US3235836A

公开(公告)日：1966-02-15

申请号：US19802662

申请日：1962-05-28

Applicant: MOTOROLA INC

Inventor： NEIL FRIHART HENRY ,  KRAKORA JR JAMES J

IPC: B06B1/02

CPC classification number: B06B1/0261 ,  B06B2201/58 ,  B06B2201/70

公开(公告)号：EP2903715A4

公开(公告)日：2016-10-05

申请号：EP13844181

申请日：2013-09-13

Applicant: FLODESIGN SONICS INC

Inventor： LIPKENS BART ,  DIONNE JASON ,  PRESZ JR WALTER ,  KENNEDY III THOMAS J

IPC: B01D17/04 ,  C02F1/36 ,  C02F1/40

CPC classification number: B06B1/06 ,  B06B2201/70 ,  C12M47/02

Abstract: A system having improved trapping force for acoustophoresis is described where the trapping force is improved by manipulation of the frequency of the ultrasonic transducer. The transducer includes a ceramic crystal. The crystal may be directly exposed to fluid flow. The crystal may be air backed, resulting in a higher Q factor.

公开(公告)号：EP2868118A4

公开(公告)日：2016-02-24

申请号：EP12879700

申请日：2012-06-28

Applicant: NOKIA TECHNOLOGIES OY

Inventor： BRODKIN PANU

IPC: H04R7/04 ,  B06B3/00 ,  H04M1/725 ,  H04R9/16 ,  H04R17/08

CPC classification number: G06F3/165 ,  B06B1/0207 ,  B06B3/00 ,  B06B2201/55 ,  B06B2201/70 ,  G05B15/02 ,  G10K9/122 ,  H04M1/0266 ,  H04M1/605 ,  H04M2250/12 ,  H04R3/12 ,  H04R7/045 ,  H04R2499/11 ,  H04R2499/15

Abstract: An apparatus comprising: at least one input configured to provide at least one input signal; a mode determiner configured to determine at least one mode of condition based on the at least one input signal; a controller configured to control the reproduction of at least one audio signal based on the at least one mode of condition; and at least one actuator configured to reproduce the at least one audio signal within the apparatus by vibration of a surface.

公开(公告)号：EP1385262B1

公开(公告)日：2013-02-27

申请号：EP02722803.0

申请日：2002-04-25

Applicant: NAMIKI SEIMITSU HOUSEKI KABUSHIKI KAISHA

Inventor： KANEDA, Shoichi ,  UENO, Kenji ,  UEDA, Minoru

IPC: H02P7/00 ,  B06B1/04 ,  H04M1/02

CPC classification number: B06B1/0207 ,  B06B2201/53 ,  B06B2201/70 ,  H04M1/03 ,  H04M1/60 ,  H04R9/10

公开(公告)号：EP1488861B1

公开(公告)日：2010-11-10

申请号：EP04022452.9

申请日：2000-10-23

Applicant: YAMAHA CORPORATION

Inventor： Noro, Masao, c/o Yamaha Corporation ,  Tanaka, Takahiro, c/o Yamaha Corporation ,  Toba, Nobukazu, c/o Yamaha Corporation ,  Yamaki, Kiyoshi, c/o Yamaha Corporation

IPC: B06B1/02

CPC classification number: B06B1/045 ,  B06B1/0207 ,  B06B1/0215 ,  B06B2201/52 ,  B06B2201/53 ,  B06B2201/55 ,  B06B2201/70 ,  G08B6/00

公开(公告)号：EP2097180A1

公开(公告)日：2009-09-09

申请号：EP07820835.2

申请日：2007-10-02

Applicant: Robert Bosch GmbH

Inventor： BECKERS, Roland ,  RICHTER, Karl-Heinz

IPC: B06B1/02 ,  G01S7/523

CPC classification number: B06B1/0215 ,  B06B2201/70 ,  G01S7/524 ,  G01S15/931

Abstract: Circuit arrangement (1) for evaluating and/or activating sound transducers (2, 22) for use in vehicles, in particular as part of a parking assistance device, wherein the circuit arrangement (1) comprises a transformer (12, 23) with a primary winding (7, 8) and a secondary winding (16), and the windings lead to a transmission ratio (ü) of greater than 1, wherein connections for a sound transducer (2, 22) are provided on the secondary winding (16), and wherein connections (7, 8) for activation means are provided on the primary winding, said connections generating a voltage, which changes over time, on the primary winding (7, 8) of the transformer (12, 23), wherein sides of the primary winding (primary side) (7, 8) are provided with an antenna (20, 36) which is suitable for receiving electric fields generated by interference signals and which is connected to the side of the secondary winding (16) (secondary side) via a coupling path (21, 37), wherein a means for phase shifting is provided in the coupling path (21, 37), said means causing a phase shift of the electrical interference signals, which are received by the antenna (20, 36), through 180°.

公开(公告)号：EP1545842A4

公开(公告)日：2008-03-26

申请号：EP03771965

申请日：2003-07-28

Applicant: GERBER TECHNOLOGY INC

Inventor： STEIN DARRYL C ,  REARDON MATTHEW L ,  HARSTINE KENNETH LEWIS

IPC: B06B1/02 ,  B06B1/04 ,  B06B1/10 ,  B26D5/00 ,  B26D7/08 ,  B26F1/38 ,  H02K49/10 ,  B26F1/00 ,  B26D1/10

CPC classification number: H02K49/102 ,  B06B1/045 ,  B06B1/10 ,  B06B2201/70 ,  B26D7/086 ,  B26F1/382 ,  Y10T83/04 ,  Y10T83/8765

Abstract: In a resonating assembly (30, 130, 230), a beam (34, 134) having a pickup (36, 136) thereon is positioned proximate to a magnet (46, 146) which passes across the pick up at a predetermined frequency. The passage of the magnet across the pick up establishes an alternating magnetic field that in turn causes the beam and pick up to vibrate. A blade (48, 148) is mounted on the beam and vibrates therewith so that when the blade is brought into engagement with a layer of sheet type work material (16) the vibratory amplitude of the blade causes the blade to cut through the material as it is moved in engagement therewith.

公开(公告)号：EP1854281A2

公开(公告)日：2007-11-14

申请号：EP06719667.5

申请日：2006-01-27

Applicant: Sulphco, Inc.

Inventor： MAY, Jason ,  RICHMAN, Charles I. ,  GUNNERMAN, Rudolf W.

IPC: H04N5/228

CPC classification number: B06B1/0246 ,  B06B2201/58 ,  B06B2201/70

Abstract: The present invention is directed to a high-powered (e.g., > 500 W) ultrasonic generator for use especially for delivering high-power ultrasonic energy to a varying load including compressible fluids. The generator includes a variable frequency triangular waveform generator coupled with pulse width modulators. The output from the pulse width modulator is coupled with the gates of an Isolated Gate Bipolar Transistor (IGBT), which amplifies the signal and delivers it to a coil that is used to drive a magnetostrictive transducer. In one embodiment, high voltage of 0-600VDC is delivered across the collector and emitter of the IGBT after the signal is delivered. The output of the IGBT is a square waveform with a voltage of +/- 600V. This voltage is sent to a coil wound around the ultrasonic transducer. The voltage creates a magnetic field on the transducer and the magnetorestrictive properties of the transducer cause the transducer to vibrate as a result of the magnetic field. The use of the IGBT as the amplifying device obviates the need for a Silicon Controlled Rectifier (SCR) circuit, which is typically used in low powered ultrasonic transducers, and which would get overheated and fail in such a high-powered and load-varying application.

公开(公告)号：EP1220177B1

公开(公告)日：2005-11-09

申请号：EP01310896.4

申请日：2001-12-27

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Mandai, Tadao ,  Ikeda, Kenji

IPC: G08B6/00 ,  B06B1/04 ,  B06B1/02

CPC classification number: B06B1/023 ,  B06B1/0246 ,  B06B2201/53 ,  B06B2201/70