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17 条记录 (耗时 0.019 秒)

    Synchronous tracking device for direct spread spectrum receiver
    1.
    发明授权
    Synchronous tracking device for direct spread spectrum receiver 失效
    用于直接扩频接收机的同步跟踪装置

    公开(公告)号：US4841545A

    公开(公告)日：1989-06-20

    申请号：US76185

    申请日：1987-07-21

    申请人： Akihiko Endo ,  Shigeki Takeda ,  Hiroshi Takeda

    发明人： Akihiko Endo ,  Shigeki Takeda ,  Hiroshi Takeda

    IPC分类号： G01S19/37 ,  H03L7/087 ,  H04B1/707 ,  H04B1/7085 ,  H04J13/00

    CPC分类号： H04B1/7085 ,  H03L7/087 ,  H04B1/7095

    摘要： A synchronous tracking device for a receiver in a direct-spread spectrum communication system in which a carrier frequency and a pseudo noise code for spreading it are coherent. A first circuit tracks the pseudo noise code in the received signal for a predetermined time after synchronous acquisition of the pseudo noise code. A second circuit tracks the pseudo noise code after the first tracking circuit stops tracking, while maintaining a locking condition achieved by the first tracking circuit.

    摘要翻译： 一种用于直扩扩频通信系统中的接收机的同步跟踪装置，其中载频和用于扩展它的伪噪声码是相干的。 在伪噪声码的同步获取之后，第一电路在接收信号中跟踪预定时间的伪噪声码。 在第一跟踪电路停止跟踪之后，第二电路跟踪伪噪声码，同时保持由第一跟踪电路实现的锁定状态。

    Automatic inner pipeline surface washing apparatus
    3.
    发明授权
    Automatic inner pipeline surface washing apparatus 失效
    自动内胆管道清洗装置

    公开(公告)号：US5188134A

    公开(公告)日：1993-02-23

    申请号：US757397

    申请日：1991-09-10

    申请人： Katsuhiko Satoh ,  Itsuo Muto ,  Shigeki Takeda ,  Mamoru Miyamoto

    发明人： Katsuhiko Satoh ,  Itsuo Muto ,  Shigeki Takeda ,  Mamoru Miyamoto

    IPC分类号： B08B9/032 ,  B08B9/04 ,  B08B9/043 ,  E03C1/02 ,  F16L55/00

    CPC分类号： B08B9/0433 ,  Y10T137/4259

    摘要： Each of the washing units A and B comprises an openable and closable pinch valve unit 4 branchwise connected to a pipeline C, an autofeeder unit 5 for controlling the feed for advance and retraction movement of a high pressure hose 6 having rotatable nozzle unit connected to the front end thereof, and a hose reel unit 7 for winding and unwinding the high pressure hose. During washing operation, the nozzle unit enters the pipeline C through the pinch valve unit 4 now opened to wash the inner surface of the pipeline. During nonwashing period, the nozzle unit is moved rearward and completely isolated from the pipeline by the pinch valve unit 4 now closed. Therefore, the washing units A and B are completely separated from the pipeline C during nonwashing period.

    Multilayered optical thin-film filter, method of designing the same and filter module utilizing the same
    5.
    发明授权
    Multilayered optical thin-film filter, method of designing the same and filter module utilizing the same 失效

    公开(公告)号：US06831784B2

    公开(公告)日：2004-12-14

    申请号：US10404924

    申请日：2003-03-31

    申请人： Shigeki Takeda

    发明人： Shigeki Takeda

    IPC分类号： G02B2700

    CPC分类号： G02B5/288 ,  G02B6/12007 ,  G02B6/2937 ,  G02B6/2938 ,  H04J14/0201

    摘要： In a multilayered optical thin-film filter having multiple quarter wavelength thick optical thin films with different refractive indices, the filter includes a plurality of unit cavities that are stacked multiple times via a connection layer, each unit cavity including a first reflector layer, a spacer layer in contact with the first reflector layer, and a second reflector layer in contact with the spacer layer. The first reflector layer is a layered body and the second reflector layer is a layered body. The spacer layer is a multilayered optical thin film with a high refractive index obtained by layering even number of films, or is composed of a multilayered optical thin film with a low refractive index. The connection layer is a multilayered optical thin film with a low refractive index obtained by layering odd number of films.

    Distributed element filter
    6.
    发明授权
    Distributed element filter 失效
    分布式元素滤波器

    公开(公告)号：US06300849B1

    公开(公告)日：2001-10-09

    申请号：US09449582

    申请日：1999-11-29

    申请人： Shigeki Takeda

    发明人： Shigeki Takeda

    IPC分类号： H01P120

    CPC分类号： H01P1/20381

    摘要： A distributed element filter is realized which has bandpass characteristics realizing both a flat amplitude characteristic and a flat group delay characteristic throughout the passband at the same time, while realizing transmission zeros in the stopbands. The transfer function s21 of a lowpass prototype filter is expressed by a numerator rational polynomial f(s) having at least one conjugate zeros on the real axis and one conjugate zeros on the imaginary axis and a denominator rational polynomial g(s) as a Hurwitz polynomial of degree 6 or higher; circuit blocks corresponding to the zeros on the real axis and zeros on the imaginary axis are each realized by a multiple resonator filter, and the distributed element filter is realized by a multiple coupling circuit block by setting the conditions on each coupling in corresponding relationship to the zeros on the real axis or zeros on the imaginary axis. The filter having the desired bandpass characteristics can thus be constructed and realized with simple circuitry by using a strict design procedure.

    摘要翻译： 实现了分布式元件滤波器，其具有同时实现整个通带中的平坦振幅特性和平坦组延迟特性的带通特性，同时实现阻带中的传输零点。 低通原型滤波器的传递函数s21由在实轴上具有至少一个共轭零和虚轴上的一个共轭零点的分子有理多项式f（s）和作为Hurwitz的分母有理多项式g（s）表示 6度以上的多项式; 对应于实轴上的零点和虚轴上的零点的电路块各自由多谐振器滤波器实现，分布式元件滤波器由多重耦合电路块实现，通过将每个耦合的条件设置为与 在实轴上为零，在虚轴上为零。 因此，通过使用严格的设计程序，可以通过简单的电路来构建和实现具有所需带通特性的滤波器。

    Washing apparatus and method for fluidized bed pelletizing and drying machine
    9.
    发明授权
    Washing apparatus and method for fluidized bed pelletizing and drying machine 失效
    流化床造粒干燥机的洗涤装置及方法

    公开(公告)号：US5336332A

    公开(公告)日：1994-08-09

    申请号：US757403

    申请日：1991-09-10

    申请人： Katsuhiko Satoh ,  Itsuo Muto ,  Shigeki Takeda ,  Mamoru Miyamoto

    发明人： Katsuhiko Satoh ,  Itsuo Muto ,  Shigeki Takeda ,  Mamoru Miyamoto

    IPC分类号： B01J2/16 ,  B08B3/02

    CPC分类号： B08B3/02

    摘要： Means is disclosed for washing the inside of a pelletizing machine containing a bag filter which is capable of being raised and lowered within the body of the machine. A vertically movable, upright means to spray washing liquid in three dimensions is provided above the bag filter. A horizontally movable spraying means is provided below the bag filter. This horizontal spraying means can be retracted from inside the pelletizing machine during pelletizing operations, but is capable of spraying washing liquid upwardly into the open end of the bag filter during washing operations.

    摘要翻译： 公开了用于清洗含有能够在机器主体内升高和降低的袋式过滤器的造粒机的内部的装置。 在袋式过滤器上方设置有用于在三维上喷射洗涤液体的可垂直移动的立式装置。 在袋式过滤器的下方设有水平移动的喷涂装置。 这种水平喷涂装置可以在造粒操作期间从造粒机的内部缩回，但是在洗涤操作期间能够将洗涤液向上喷到袋式过滤器的开口端。

    Cleaning nozzle
    10.
    发明授权
    Cleaning nozzle 失效
    清洁喷嘴

    公开(公告)号：US5135170A

    公开(公告)日：1992-08-04

    申请号：US674018

    申请日：1991-03-25

    申请人： Shigeki Takeda ,  Kazuma Arikawa

    发明人： Shigeki Takeda ,  Kazuma Arikawa

    IPC分类号： B05B3/06 ,  B05B3/18 ,  B05B15/10 ,  B08B9/093

    CPC分类号： B05B3/06 ,  B05B15/10

    摘要： The cleaning nozzle of the invention is intended to clean the parts to be cleaned by the cleaning water, by feeding cleaning water into the cylinder tube, pushing out the injection nozzle from the mounting surface by the pressure of the cleaning water, and injecting cleaning water while rotating at the same time. Next, when the feed of cleaning water is stopped, the injection nozzle stops injecting cleaning water, and is simultaneously retracted into the housing, thereby closing the mounting part by the poppet valve.