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    • 3. 发明授权
    • Pressure-sensitive record material
    • 压敏记录材料
    • US4675706A
    • 1987-06-23
    • US837109
    • 1986-03-07
    • Robert E. MillerRobert W. Brown
    • Robert E. MillerRobert W. Brown
    • B41M5/124B41M5/165B41M5/22
    • B41M5/165B41M5/124
    • Disclosed is a pressure-sensitive record unit which comprises a top sheet having coated on the underside thereof solid color former material and a bottom sheet having coated on the upper side thereof a coating comprising solid color developer material and microcapsules containing a liquid solvent for the color former. Such a record unit makes possible the unexpectedly efficient utilization of the color former material. It furthermore permits the printing application of some of the components, resulting in even more efficient utilization of color former material and elimination of undesirable side effects of printed record units taught in the prior art.
    • 公开了一种压敏记录单元,其包括涂覆在其下侧固体成色剂材料上的顶片,以及在其上侧涂覆有包含纯色显影剂材料的涂层和含有用于颜色的液体溶剂的微胶囊的底片 前任的。 这样的记录单元使得可以意外地有效地利用成色剂材料。 此外,它还允许打​​印一些部件的应用,从而更有效地利用成色剂材料并消除现有技术中教导的印刷记录单元的不期望​​的副作用。
    • 6. 发明授权
    • Active-passive electromagnetic shielding to reduce MRI acoustic noise
    • 主动被动电磁屏蔽减少MRI声学噪声
    • US07375526B2
    • 2008-05-20
    • US11551413
    • 2006-10-20
    • William A. EdelsteinTesfaye K. KidaneVictor TaracillaTanvir N. BaigTimothy P. EaganRobert W. Brown
    • William A. EdelsteinTesfaye K. KidaneVictor TaracillaTanvir N. BaigTimothy P. EaganRobert W. Brown
    • G01V3/00
    • G01R33/3854G01R33/4215
    • The present invention provides an apparatus for reducing acoustic noise in a magnetic resonance imaging device including passive shielding located outside the actively shielded gradient winding elements in order to reduce the magnitude of fields that spread outside the gradient coil assembly in unwanted directions and interact with the magnet cryostat or other metallic magnet parts, inducing eddy currents that cause consequent acoustic noise. The passive shielding elements are conducting layers located on the outer radius of the cylindrical gradient coil assembly in a cylindrical magnet system, conducting layers located at the ends of the gradient coil assembly in a cylindrical magnet system, and conducting layers located inside the actively shielded gradient winding inner elements in a cylindrical magnet system. The passive shielding could also be located on separate structures that are vibrationally isolated from the magnet cryostat. The actively shielded gradient winding can also be extended to portions at the ends of the actively shielded gradient winding and further to portions inside the inner radius of the inner portion of the actively shielded gradient winding. The actively shielded gradient windings and passive shielding should be designed concurrently in order to substantially optimize the gradient linearity and reduce the eddy currents generated in metallic parts of the magnetic resonance imaging system.
    • 本发明提供了一种用于降低磁共振成像装置中的声学噪声的装置,其包括位于主动屏蔽的梯度绕组元件外部的无源屏蔽,以便减少在不需要的方向上扩展到梯度线圈组件外部的场的大小并与磁体相互作用 低温恒温器或其他金属磁体部件,引起导致声音噪声的涡流。 无源屏蔽元件是位于圆柱形磁体系统中的圆柱形梯度线圈组件的外半径上的导电层,位于梯形线圈组件的端部的导电层位于圆柱形磁体系统中,导电层位于主动屏蔽梯度内 在圆柱形磁体系中缠绕内部元件。 被动屏蔽也可以位于与磁体低温恒温器振动隔离的分离结构上。 主动屏蔽的梯度绕组还可以延伸到主动屏蔽的梯度绕组的端部的部分,并且还可以延伸到主动屏蔽的梯度绕组的内部的内半径内的部分。 主动屏蔽梯度绕组和无源屏蔽应同时设计,以便基本上优化梯度线性并减少在磁共振成像系统的金属部分中产生的涡流。
    • 7. 发明授权
    • Ground bus for an electrical connector
    • 接地母线用于电气连接器
    • US07112072B2
    • 2006-09-26
    • US10334586
    • 2002-12-31
    • Iosif R. KorsunskyJoanne E. ShipeRobert W. Brown
    • Iosif R. KorsunskyJoanne E. ShipeRobert W. Brown
    • H01R4/66
    • H01R13/652H01R9/2483H01R31/085
    • A ground bus (4) for use with an electrical connector (1) includes a plane body (40) for electrical engagement with a corresponding ground contact of a mating connector, a number of solder tails (42) extending from the plane body and a carrier strip (46) connecting with the solder tails. The ground bus has a number of fingers (460) extending from the carrier strip. The fingers extend into space (320) between adjacent signal contacts (3) after the ground bus is assembled to the connector. Each solder tail (42) has a solder joint (420) for electrical connection to a printed circuit board (8). A bringing element (422) interconnects two adjacent solder tails at the solder joint.
    • 与电连接器(1)一起使用的接地母线(4)包括用于与配合连接器的相应接地触点电接合的平面主体(40),从平面主体延伸的多个焊接尾部(42)和 与焊尾连接的载体条(46)。 接地总线具有从载体条延伸的多个指状物(460)。 在地面总线组装到连接器之后,手指延伸到相邻信号触头(3)之间的空间(320)中。 每个焊尾(42)具有用于与印刷电路板(8)电连接的焊接接头(420)。 引导元件(422)在焊接接头处互连两个相邻的焊接尾部。
    • 8. 发明授权
    • Birdcage coils for simultaneous acquisition of spatial harmonics
    • 鸟笼线圈同时采集空间谐波
    • US06791321B2
    • 2004-09-14
    • US10173933
    • 2002-06-18
    • Jacob D. Willig-OnwuachiRobert W. BrownShmaryu M. Shvartsman
    • Jacob D. Willig-OnwuachiRobert W. BrownShmaryu M. Shvartsman
    • G01V300
    • G01R33/561G01R33/34046G01R33/5611
    • In a magnetic resonance imaging apparatus, a main magnet assembly (12) produces a uniform magnetic field through an imaging region (14). An imaging region is defined within a subject by selecting gradient magnetic fields spatially encode the main magnetic field. A whole body birdcage radio frequency coil (26) excites magnetic resonance in dipoles of the subject. The resonance signals are received by the whole body coil (26) and by a second, local birdcage radio frequency coil (16). The first radio frequency coil (26) produces and is sensitive to a uniform radio frequency field in the imaging region (14) while the second radio frequency coil (28) is sensitive to a field that varies sinusoidally in space. From one radio frequency excitation, the two birdcage coils (26, 16) receive different sets of data with which to fill k-space, accelerating data collection.
    • 在磁共振成像装置中,主磁体组件(12)通过成像区域(14)产生均匀的磁场。 通过选择对主磁场进行空间编码的梯度磁场,在对象内定义成像区域。 全身鸟笼射频线圈(26)激发受试者的偶极子中的磁共振。 谐振信号由全体线圈(26)和第二局部鸟笼射频线圈(16)接收。 第一射频线圈(26)对成像区域(14)中的均匀射频场产生并且敏感,而第二射频线圈(28)对于空间正弦变化的场敏感。 从一个射频激励,两个鸟笼线圈(26,16)接收不同的数据集合,以填充k空间,加速数据收集。
    • 9. 发明授权
    • Electrical connector
    • 电连接器
    • US06638081B2
    • 2003-10-28
    • US10104832
    • 2002-03-22
    • Iosif R. KorsunskyRobert W. Brown
    • Iosif R. KorsunskyRobert W. Brown
    • H01R1220
    • H01R12/721
    • An electrical connector (1, 1′) straddle-mounted on an edge (20, 20′) of a printed circuit board (2, 2′) includes an insulative housing (10) having an elongated groove (11) for mating. A number of receiving channels (13) each used to receive a support subassembly (3, 3′) is formed adjacently to and communicated with the mating groove (11). The support subassembly includes a base (30, 30′) with signal terminals (5, 5′) and a grounding member (4, 4′) attached thereon. Every terminal includes an engaging end (51, 51′) exposed to the mating groove (11) and a tail end (52, 52′) extending out of the receiving channel (13). The grounding member includes a number of contacting legs (42, 42′) extending therefrom. A notch (34, 34′) with a thinned area is disposed on the base to define a separating portion (33, 33′) from the base. The notch is used to facilitate relocating the separating portion relative to the base. The separating portion of the base can be positioned between the tail ends of the terminals and the contacting legs of the grounding member to electrically insulate them from each other while the shape of the tail ends and the contacting legs are changeable for being mounted on another desired printed circuit board with a different thickness. The separating portion can be moved for the assembling of every terminal and the grounding member when they need to put together to form the support subassembly for being inserted into the housing.
    • 跨接在印刷电路板(2,2')的边缘(20,20')上的电连接器(1,1')包括具有用于配合的细长槽(11)的绝缘壳体(10)。 每个用于接收支撑子组件(3,3')的接收通道(13)形成为与配合凹槽(11)相邻并与其相连通。 支撑子组件包括具有信号端子(5,5')和附接在其上的接地构件(4,4')的基座(30,30')。 每个端子包括暴露于配合槽(11)的接合端(51,51')和延伸出接收通道(13)的尾端(52,52')。 接地构件包括从其延伸的多个接触腿(42,42')。 具有减薄区域的凹口(34,34')设置在基部上以限定与基部分离的分离部分(33,33')。 凹口用于促进分离部分相对于基底的重新定位。 基座的分离部分可以位于端子的尾端和接地构件的接触腿之间,以使它们彼此电绝缘,同时尾端的形状和接触腿是可更换的,以便安装在另一所需的 具有不同厚度的印刷电路板。 为了组装每个端子和接地构件,当它们需要放在一起以形成用于插入壳体的支撑子组件时,分离部分可以移动。