公开(公告)号：EP0706622A1

公开(公告)日：1996-04-17

申请号：EP94920829.0

申请日：1994-06-28

申请人： AURA SYSTEMS, INC.

发明人： MORINIGO, Fernando, B. ,  BLAIRE, William, C. ,  BULGATZ, Dennis

IPC分类号： F01L9 ,  F16K31 ,  H01F7

CPC分类号： F16K31/0679 ,  F01L9/04 ,  H01F7/1638 ,  H01F2007/1676

摘要： An improved electromagnetically actuated valve (10) is disclosed. The improved valve design includes a layer of structurally stable, non-magnetic material (52), preferably Kapton or Chrome, disposed intermediate the core element (16) and the electromagnetic element (32, 34) of the valve, and a core element and electromagnetic element fabricated from a high electrical resistive iron material. The layer of non-magnetic structurally stable material and high resistance core element serve to eliminate the hysteresis effect in the magnetic force of the valve. The core element may also include radially extending (50) or axially extending (48) perforations through the core element. The axial and radial perforations serve to reduce the weight of the core design and the axial perforations serve to reduce the effect of the air spring created in the gap as the core element approaches the electromagnetic element during operation of the valve.

公开(公告)号：EP0682849A4

公开(公告)日：1996-01-17

申请号：EP94907390

申请日：1994-01-31

申请人： AURA SYSTEMS INC

发明人： STUART KEITH O ,  BULGATZ DENNIS

IPC分类号： H02K33/18 ,  B21D22/30 ,  B21D51/26 ,  H04R9/00 ,  H04R9/02 ,  H04R25/00

CPC分类号： H04R9/025 ,  B21D22/30 ,  B21D51/26 ,  H02K41/0356 ,  H04R2209/022 ,  H04R2209/041 ,  H04R2499/13

摘要： A field coil actuator (50) includes a magnetic flux conductive material case (52), an electrical current conductive field coil (54) and two electrical current conductive moving coils (56a, 56b) uniquely arranged. The case has a first surface (58) and a continuous channel (60) disposed in said first surface. The channel has a pair of opposing walls (62, 64). The field coil is disposed within the channel between the walls so that a gap (55a) remains between the walls above the field coil and another gap (55b) remains between the walls below the field coil. When a current is induced in the field coil, magnetic flux is developed across the gaps. The flux is confined substantially normal to the walls of the channel. The electrical current conductive moving coils are each disposed moveably in one of the gaps such that an electrical current in the coil develops a Lorentz force on each of the coils in a direction substantially normal to the current in the moving coil and the magnetic flux to displace the moving coil in response to the current in the moving coil.

摘要翻译： 励磁线圈致动器包括磁通导电材料壳体，电流传导场线圈和唯一布置的两个电流导电运动线圈。 壳体具有设置在所述第一表面中的第一表面和连续通道。 通道有一对相对的墙壁。 励磁线圈设置在壁之间的通道内，使得在场线圈上方的壁之间留有间隙，并且在场线圈下方的壁之间保留另一间隙。 当在场线圈中感应出电流时，跨越间隙产生磁通量。 磁通量基本上限定在通道的壁上。 电流导电运动线圈各自可移动地设置在一个间隙中，使得线圈中的电流在基本上垂直于运动线圈中的电流的方向上在每个线圈上产生洛伦兹力，并且磁通量位移 所述运动线圈响应于所述运动线圈中的电流。

公开(公告)号：EP0594829A1

公开(公告)日：1994-05-04

申请号：EP93911178.0

申请日：1993-05-07

申请人： AURA SYSTEMS, INC.

发明人： UM, Gregory ,  SZILAGYI, Andrei

IPC分类号： G02B26 ,  G02B7 ,  H04N5 ,  H04N9

CPC分类号： H04N9/3102 ,  G02B7/1827

摘要： Appareil destiné à moduler l'intensité d'un pixel affiché sur un écran (24) qui focalise de l'énergie optique provenant d'une source à large bande (12) sur la première face réfléchissante d'un élément plan. La première face est placée sur ladite première voie de propagation (34) à un angle choisi par rapport à cette dernière de manière à diriger l'énergie optique le long d'une deuxième voie de propagation (40). Un miroir plan (20) est placé sur la deuxième voie de propagation (40). Le plan du miroir peut être actionné de manière à orienter le miroir au sein d'une gamme d'angles par rapport à ladite deuxième voie de propagation (40) afin de focaliser l'énergie optique réfléchie par la première face sur le miroir (20).

公开(公告)号：EP0548343A4

公开(公告)日：1994-01-19

申请号：EP92915817

申请日：1992-07-15

申请人： AURA SYSTEMS, INC.

发明人： STUART, KEITH, O.

IPC分类号： B21D24/00 ,  B21D22/30 ,  B21D51/26 ,  B21D24/10

CPC分类号： B21D51/26 ,  B21D22/30

公开(公告)号：EP1364454B1

公开(公告)日：2019-08-07

申请号：EP01985165.8

申请日：2001-12-28

申请人： AURA SYSTEMS, INC.

发明人： ULINSKI, Richard, J. ,  RAHMAN, Khaliqur ,  CLARKE, Hugh, C. ,  HEITZ, W., Stephen

IPC分类号： H02J7/14 ,  H02J7/34 ,  H02M1/10 ,  H02M3/335 ,  H02M5/458

公开(公告)号：EP0706710B1

公开(公告)日：2000-04-05

申请号：EP94920315.2

申请日：1994-06-27

申请人： AURA SYSTEMS, INC.

发明人： BULGATZ, Dennis ,  MORINIGO, Fernando, B. ,  STUART, Keith, O. ,  SORTORE, Christopher

IPC分类号： H01F3/00 ,  H01F7/08 ,  H01F7/13 ,  F01L9/04 ,  H01F7/16

CPC分类号： H01F7/13 ,  F01L9/04 ,  H01F7/1638 ,  H01F2007/1692

摘要： An electromagnetically actuator (10) is disclosed having an electromagnet (12), a core element (16), the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position proximal from the electromagnet when the electromagnet is on, a first resilient member (20) adapted to bias said core element in the normally biased first position, and a second resilient member (50) adapted to bias the electromagnet away from the core. The first resilient member is more resilient than the second resilient member. Therefore, the core approaches the electromagnet when the electromagnet is on until the core reaches the fixed stop position, and the electromagnet subsequently approaches the core to the fixed stop position. The actuator may further include an adjustment member (60) that engages the electromagnet so as to control the pressure of the electromagnet against the second resilient member, whereby the axial position of the electromagnet is controlled.

摘要翻译： 公开了一种电磁致动器（10），其具有电磁体（12），芯体元件（16），当电磁体断开时，芯体元件具有远离电磁体的正常偏置的初始间隔开的第一位置，以及第二停止位置 当电磁体接通时的电磁体，适于使所述芯体元件在正常偏置的第一位置偏置的第一弹性构件（20）以及适于偏置电磁体远离芯体的第二弹性构件（50）。 第一弹性构件比第二弹性构件更具弹性。 因此，当电磁铁开启时，铁芯接近电磁铁，直到铁芯到达固定停止位置，随后电磁铁接近铁芯至固定停止位置。 致动器可以进一步包括调节构件（60），其与电磁体接合以便控制电磁体抵靠第二弹性构件的压力，由此控制电磁体的轴向位置。

公开(公告)号：EP0746393A4

公开(公告)日：1999-09-08

申请号：EP94928600

申请日：1994-09-14

申请人： AURA SYSTEMS INC

发明人： SHULTZ LAWRENCE ,  VINCENT RICHARD ,  TUNG DAVID

IPC分类号： H03G5/02 ,  A63F13/00 ,  H04R5/04 ,  A63F9/24 ,  H04N5/00

CPC分类号： H04R5/04

摘要： A multifunction amplifier device for matching an audio signal from an audio signal source, such as a video game, stereo or movie, to a pre-determined frequency of a transducer is disclosed. The amplifier device includes a low pass filter coupled to the audio signal source for developing a filtered signal from the audio signal. A frequency dividing circuit is coupled to the low pass filter for dividing the frequencies of the filtered signal by a pre-determined factor. The amplifier device futher includes a decoding circuit coupled to said low pass filter for selecting between a left and a right audio channel of the filtered signal and developing a decoded signal and a muting circuit coupled to the decoding circuit. The muting circuit only passes the decoded signal at levels above a variable threshold level. A power amplifier is coupled to the frequency dividing circuit and the muting circuit for amplifying the audio signal into an amplified signal having a frequency level corresponding to the pre-determined frequency of the transducer.

摘要翻译： 公开了一种用于将音频信号源（例如视频游戏，立体声或电影）的音频信号与换能器的预定频率进行匹配的多功能放大器装置。 放大器装置包括耦合到音频信号源的低通滤波器，用于从音频信号开发滤波后的信号。 分频电路耦合到低通滤波器，用于将滤波信号的频率除以预定因子。 放大器装置还包括耦合到所述低通滤波器的解码电路，用于在滤波信号的左声道和右声道之间进行选择，并显现解码信号和耦合到解码电路的静噪电路。 静音电路仅在高于可变阈值电平的电平上传递解码信号。 功率放大器耦合到分频电路和静音电路，用于将音频信号放大为具有与换能器的预定频率对应的频率电平的放大信号。

公开(公告)号：EP0821806A4

公开(公告)日：1999-07-21

申请号：EP96910308

申请日：1996-02-13

申请人： AURA SYSTEMS INC

发明人： UM GREGORY

IPC分类号： G02F1/015 ,  B81B3/00 ,  G02B26/08 ,  G02B26/00

CPC分类号： B81B3/004 ,  B81B2201/042 ,  G02B26/0858

摘要： A thin film actuated mirror is disclosed having a substrate (16), a deformable structure (12) mounted to the substrate (16), and a mirror surface (17) interconnected to the deformable structure such that the mirror surface tilts in response to the deformation of the deformable material layer. The deformation occurs due to the effective strain gradient across the monomorph thickness which is accomplished by varying the electric field across the thickness or the strain parameter across the thickness. The deformable structure (12) includes an active material layer (18) fabricated from a semi-conductive ferroelectric ceramic material and two metal electrodes, each of the electrodes being mounted on opposing surfaces of the active material layer (18), wherein an electrical signal applied across the active material layer (18) between the electrodes causes deformation of the active material layer (18). Alternatively, the active material layer (18) may be fabricated from two layers, an upper layer (36) of an active piezoelectric material and a lower layer (38) of an inactive material.

公开(公告)号：EP0821803A4

公开(公告)日：1999-07-21

申请号：EP96906390

申请日：1996-02-13

申请人： AURA SYSTEMS INC

发明人： UM GREGORY

IPC分类号： G02F1/015 ,  B81B3/00 ,  G02B5/10 ,  G02B7/18 ,  G02B26/08 ,  H01L41/09 ,  G02B7/182 ,  H01L41/08

CPC分类号： B81B3/004 ,  B81B2201/042 ,  G02B26/0858 ,  Y10S359/904

摘要： A thin film actuated mirror for an actuated mirror array includes a pedestal (14), a piezoelectric structure (12) mounted to the pedestal (14), and a mirror surface (32) interconnected to the piezoelectric structure (12) such that the mirror surface (32) tilts in response to the deformation of the piezoelectric material layer (18). The pedestal (14) includes a first pedestal section (38) and a second pedestal section (40), and the piezoelectric structure (12) is divided into a first portion (42) and a second portion (44). The piezoelectric structure (12) includes a piezoelectric material layer (18) having two opposing surfaces, and two metal electrodes, the electrodes being mounted on opposing surfaces of the piezoelectric material. The piezoelectric structure first portion (42) is mounted to the first pedestal section (38) at a proximal end (28) of the piezoelectric structure (12) and the second portion (44) is mounted to the second pedestal section (40) at a distal end (30) of the piezoelectric structure (12).

公开(公告)号：EP0611463B1

公开(公告)日：1999-02-10

申请号：EP92925114.8

申请日：1992-11-06

申请人： AURA SYSTEMS, INC.

发明人： SAXON, C., Rogers ,  PICKELS, David, Bruce

IPC分类号： G06F17/00 ,  G05B19/4097 ,  G06T7/00

CPC分类号： G05B19/4097 ,  G05B2219/35202 ,  Y02P90/265 ,  Y10S715/964

摘要： A video image of the article (10) to be produced is displayed on a computer. A first geometric shape (12) is developed to enclose fully the video image of the article (10). The first geometric shape (12) provides a video image of a workpiece of machinable stock and the approximate unscaled dimensions of the workpiece. A selection is made from a library (28) of known machine tool tables to select the exact type of machine tool table (30) to be used to produce the article. The video image of the table (30) is positioned visually underneath each of the video image of the article and first geometric shape. The video representation of the machine tool table (30) includes a frame of reference origin (38) which corresponds to the actual machine tool table zero reference. The library (28) also includes the various locating, fastening and holding devices (32, 34, 36) used with each type of machine tool table from which symbols representing these devices can be selected, displayed and positioned on the terminal in their working relationship with respect to the displayed image of the workpiece. The input device is again used to form a second geometric shape fully enclosing the video image of the article (10), the first geometric shape and any displayed symbol, and further being itself enclosed by the video representation of the table (30). The second geometric shape provides a video image of a fixture subplate (34), its approximate dimensions and its approximate location on the machine tool table.