Surface acoustic wave convolver with plural wave guide paths for
generating convolution signals of mutually different phases
    1.
    发明授权
    Surface acoustic wave convolver with plural wave guide paths for generating convolution signals of mutually different phases 失效
    具有多个波导路径的表面声波卷积器,用于产生相互不同相位的卷积信号

    公开(公告)号:US5003213A

    公开(公告)日:1991-03-26

    申请号:US440853

    申请日:1989-11-24

    IPC分类号: G06G7/195

    CPC分类号: G06G7/195

    摘要: A surface acoustic wave convolver comprises a piezoelectric substrate, a plurality of input transducers formed on the substrate and adapted to respectively generate surface acoustic waves in response to input signals, and a plurality of wave guide paths parallelly provided on the substrate in a superposing area of the surface acoustic wave generated by the input transducers to each generate a convolution signal of the input signals by non-linear interaction of the surface acoustic waves therein. The convolution signals generated in neighboring wave guide paths are mutually different by 180.degree. in phase, and the wave guide paths are adapted to generate surface acoustic waves corresponding to the convolution signals and an output transducer receives the surface acoustic waves generated by the wave guide paths and converts the convolution signals into an output electrical signal.

    Surface acoustic wave convolver with dielectric film of high non-linear
effect
    2.
    发明授权
    Surface acoustic wave convolver with dielectric film of high non-linear effect 失效
    具有高非线性效应的电介质膜的表面声波卷积器

    公开(公告)号:US4882715A

    公开(公告)日:1989-11-21

    申请号:US167254

    申请日:1988-03-11

    IPC分类号: G06G7/195

    CPC分类号: G06G7/195

    摘要: In a surface acoustic wave elastic convolver capable of showing sufficiently high convolution efficiency with a simple structure, the convolver comprises a piezo-electric substrate, plural input transducers formed on the substrate for respectively generating surface acoustic waves corresponding to input signals, an output transducer for obtaining a convolution signal of the input signals, from a surface acoustic wave generated by non-linear interaction, of the surface acoustic waves generated by those input transducers, and a dielectric film of a non-linear effect larger than that of the substrate, formed on the substrate in at least an area where the output transducer is formed.

    Surface acoustic wave element and communication system using the same
    4.
    发明授权
    Surface acoustic wave element and communication system using the same 失效
    表面声波元件和通信系统使用相同

    公开(公告)号:US5367216A

    公开(公告)日:1994-11-22

    申请号:US921746

    申请日:1992-07-30

    IPC分类号: G06G7/195 H03H9/02 H01L41/08

    摘要: A surface acoustic wave element is provided with a piezoelectic substrate, a first input transducer, a second input transducer and an output device such as output electrode. The piezoelectric substrate has a first and a second surfaces which are mutually faced. The first input transducer is formed on the first surface of the substrate to generate a first surface acoustic wave which propagates in a predetermined direction. The second transducer is formed on the first surface of the substrate to generate a second surface acoustic wave which propagates in a direction opposite to the predetermined direction. The output device is formed on the first surface of the substrate to extract a signal produced by an interaction of the first and second surface acoustic waves. At least part of the second surface of the substrate is caused to be inclined in a direction perpendicular to the predetermined direction with respect to the first surface.

    摘要翻译: 表面声波元件设置有压电基板,第一输入换能器,第二输入换能器和输出装置,例如输出电极。 压电基板具有相互面对的第一和第二表面。 第一输入传感器形成在基板的第一表面上,以产生沿预定方向传播的第一声表面波。 第二传感器形成在基板的第一表面上,以产生沿与预定方向相反的方向传播的第二声表面波。 输出装置形成在基板的第一表面上,以提取由第一和第二声表面波的相互作用产生的信号。 使基板的第二表面的至少一部分相对于第一表面在垂直于预定方向的方向上倾斜。

    Surface acoustic wave device provided with output transducer split into
a plurality of portions, and communication system using the same
    5.
    发明授权
    Surface acoustic wave device provided with output transducer split into a plurality of portions, and communication system using the same 失效
    具有输出转换器分离成多个部分的表面声波装置,以及使用其的通信系统

    公开(公告)号:US5200663A

    公开(公告)日:1993-04-06

    申请号:US750392

    申请日:1991-08-27

    IPC分类号: G06G7/195 H03H9/145

    CPC分类号: H03H9/1455 G06G7/195

    摘要: A surface acoustic wave device comprises a piezoelectric substrate, a plurality of input transducers, formed on the substrate, for generating surface acoustic waves corresponding to input signals, a plurality of waveguides which are juxtaposed on a region of said substrate where the surface acoustic waves generated by said input transducers overlap each other, and in which signals are generated due to an interaction of the surface acoustic waves, the waveguides generating surface acoustic waves corresponding to the signals due to the interaction, and an output transducer for receiving the surface acoustic waves generated from the waveguides, converting the signals due to the interaction into electrical signals, and extracting the electrical signals, the output transducer being constituted by a plurality of portions, juxtaposed in a widthwise direction of the surface acoustic waves generated from the waveguides, for receiving some components of the surface acoustic waves generated from the waveguides, and outputting signals, the portions being connected to each other, so that electric fields of electrical signals output from said portions are synthesized in the same direction.

    DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

    公开(公告)号:US20180364620A1

    公开(公告)日:2018-12-20

    申请号:US15968014

    申请日:2018-05-01

    IPC分类号: G03G15/08

    摘要: A developing device is provided which includes: a developing roller in contact with or facing an image hearer; a supply roller to supply toner to the developing roller; a casing; a first conveyer disposed within the casing and above the supply roller to supply toner stored in the developing device to the supply roller, while forming a first conveyance path; a second conveyer disposed within the casing with an upper end thereof positioned below that of the first conveyer, while forming a second conveyance path forming a toner circulation path together with the first conveyance path; a partition wall separating the first conveyance path and the second conveyance path in a longitudinal direction within a range excluding both longitudinal end portions; and a toner supply port, at a ceiling of the casing above the second conveyance path, through which toner is supplied to an inside of the developing device.

    Powder collecting device and image forming apparatus incorporating same

    公开(公告)号:US10114314B2

    公开(公告)日:2018-10-30

    申请号:US15652357

    申请日:2017-07-18

    申请人: Kenji Nakamura

    发明人: Kenji Nakamura

    IPC分类号: G03G15/08 G03G15/095

    摘要: A powder collecting device includes an inlet through which powder flows in the powder collecting device, and a conveying screw to rotate to convey the powder inside the powder collecting device. The conveying screw includes a shaft and a screw portion spirally winding around the shaft. The powder collecting device further includes a flexible sheet including a plurality of strip portions divided by a plurality of slits spaced apart in an axial direction of the conveying screw. Each of the strip portions includes a contact portion to contact the shaft of the conveying screw. The contact portion is shifted from an end of the flexible sheet.

    Brush for powder cosmetics
    10.
    发明授权
    Brush for powder cosmetics 有权
    刷粉化妆品

    公开(公告)号:US09326589B2

    公开(公告)日:2016-05-03

    申请号:US13985844

    申请日:2011-02-16

    IPC分类号: A46B9/02 A46B9/06 A46D1/00

    摘要: A brush for powder cosmetics has S strands and Z strands of synthetic fiber hair materials at its tip. The brush for powder cosmetics is characterized in that the twisting pitches of S strands and Z strands at the brush tip part are 10 mm to 30 mm and when the tip of the brush is deflected to trap a cheek color, face powder, powder foundation or other powder cosmetic to be contained in the brush tip part, the powder can be trapped evenly over nearly the entire surfaces at the ends of brush hair materials.

    摘要翻译: 用于粉末化妆品的刷子在其尖端具有S股和Z股合成纤维发质。 用于粉末化妆品的刷子的特征在于,在刷头部分处的S股和Z股的扭转间距为10mm至30mm,并且当刷的尖端偏转以捕获脸颊颜色,面粉,粉底或 其它粉末化妆品被包含在刷头部分中,粉末可以均匀地被夹在刷毛材料末端的几乎整个表面上。