Digital signal receiving apparatus
    41.
    发明授权
    Digital signal receiving apparatus 有权
    数字信号接收装置

    公开(公告)号:US08050370B2

    公开(公告)日:2011-11-01

    申请号:US12270394

    申请日:2008-11-13

    IPC分类号: H04B1/10

    CPC分类号: H04B1/123

    摘要: A digital signal receiving apparatus includes a detection-judging portion having a first smoothing filter generating a first smoothed signal by smoothing an auto-correlation signal and judging a possible presence of a desired signal when a signal level of the first smoothed signal is greater than a reference level and an absence of the desired signal when being smaller than the reference level. The smoothing filter includes a limiting portion limiting a fluctuation width of the first smoothed signal; and an adjusting portion configured to adjust the fluctuation width of the first smoothed signal limited by the limiting portion to be reduced while an elapsing time after the detection-judging means judges the possible presence of the desired signal is increasing.

    摘要翻译: 一种数字信号接收装置,包括具有第一平滑滤波器的检测判断部分,该第一平滑滤波器通过平滑自相关信号产生第一平滑信号,并且当第一平滑信号的信号电平大于一个信号时判断期望信号的可能存在 参考电平和当小于参考电平时缺少所需信号。 平滑滤波器包括限制第一平滑信号的波动宽度的限制部分; 以及调整部,其被配置为在检测判断装置判断出所需信号的可能存在之后的经过时间时,调整受限制部分限制的第一平滑信号的波动宽度的减小。

    FREQUENCY SHIFT KEYING (FSK) DIGITAL SIGNAL RECEIVING APPARATUS
    42.
    发明申请
    FREQUENCY SHIFT KEYING (FSK) DIGITAL SIGNAL RECEIVING APPARATUS 有权
    频移键盘(FSK)数字信号接收装置

    公开(公告)号:US20090129510A1

    公开(公告)日:2009-05-21

    申请号:US12270416

    申请日:2008-11-13

    IPC分类号: H04L27/14 H04B1/10

    CPC分类号: H04B1/123 H04L27/14

    摘要: A frequency shift keying digital signal receiving apparatus includes a detecting portion detecting a new signal on the basis of a signal, from which a correlated ambient noise is filtered out by an adaptive filter, a holding portion holding a first electric power for the signal received before a new signal is detected, a calculating portion calculating a second electric power for the signal received after the new signal is detected, a comparing portion comparing levels of the first and second electric powers, a selector selecting the signal, from which the correlated ambient noise is filtered out, when the first electric power is higher than the second electric power and selecting the signal bypassing the adaptive filter when the first electric power is lower than the second electric power, and a demodulating portion demodulating a desired signal on the basis of the signal selected by the selecting portion.

    摘要翻译: 频移键控数字信号接收装置包括:检测部,其基于由自适应滤波器滤除相关的环境噪声的信号,检测新信号;保持部,其对于接收到的信号之前保持第一电力 检测到新的信号,计算部分,对于检测到新信号之后接收到的信号计算第二电力,比较部分,比较第一和第二电力的电平;选择器,选择信号,相关环境噪声 被滤出,当第一电力高于第二电力时,并且当第一电力低于第二电力时选择旁路自适应滤波器的信号,以及解调部分,基于 信号由选择部分选择。

    Nanocrystalline bolt and method for manufacturing same
    43.
    发明申请
    Nanocrystalline bolt and method for manufacturing same 审中-公开
    纳米晶体螺栓及其制造方法

    公开(公告)号:US20050201886A1

    公开(公告)日:2005-09-15

    申请号:US11047589

    申请日:2005-02-02

    申请人: Yuichi Murakami

    发明人: Yuichi Murakami

    摘要: A nanocrystalline bolt, which serves as a high-strength bolt, is manufactured by the steps of compacting powder formed of nanocrystalline metal particles having a nanometer-scale grain size, extruding a resultant compact so as to obtain a rod stock, and subjecting the rod stock to a bolt-forming process (heading, machining, and form rolling) without involvement of heat treatment. Examples of metal material include JIS SUS410, precipitation-hardening-type 13Cr-8Ni-2Mo, and other stainless steels.

    摘要翻译: 用作高强度螺栓的纳米晶体螺栓通过以下步骤制造:压制由具有纳米级粒径的纳米晶体金属颗粒形成的粉末,挤出所得到的压块以获得棒料,并对棒 存储到螺栓成型过程(标题,加工和成型轧制),而不涉及热处理。 金属材料的实例包括JIS SUS410,沉淀硬化型13Cr-8Ni-2Mo等不锈钢。

    Optical fiber attenuator with attenuating dopant limited to a central or peripheral area of the fiber core
    44.
    发明授权
    Optical fiber attenuator with attenuating dopant limited to a central or peripheral area of the fiber core 有权
    具有衰减掺杂剂的光纤衰减器限于光纤芯的中心或周边区域

    公开(公告)号:US06748151B1

    公开(公告)日:2004-06-08

    申请号:US09868766

    申请日:2001-06-21

    IPC分类号: G02B618

    摘要: An optical attenuator which provides almost the same degree of attenuation even when the difference in wavelength of two different kinds of input optical signals is small. Another optical attenuator is provided with a dopant concentration in a technically realizable range which increases the difference in optical attenuation of two different kinds of input optical signals. Almost the same degree of attenuation may be obtained even when the difference between wavelengths is small by canceling the wavelength dependency of attenuation of the dopant by raising the refractive index of an axially central portion of the core as compared to that of the peripheral portion of the core and by taking into account the type and area of the dopant and the ratio of the difference &Dgr;2 between the refractive indexes of the cladding and the axial portion of the core and the difference &Dgr;1 between the refractive index of the cladding and the refractive index of the peripheral portion, i.e., &Dgr;1/&Dgr;2. On the other hand, the difference of attenuation is increased while suppressing the concentration of dopant to the realizable range.

    摘要翻译: 即使当两种不同种类的输入光信号的波长差小时,也提供几乎相同衰减程度的光衰减器。 另一个光衰减器在技术上可实现的范围内提供掺杂剂浓度,这增加了两种不同种类的输入光信号的光衰减差异。 即使当通过提高与芯的周边部分的芯的轴向中心部分的折射率相比较来补偿掺杂剂的衰减的波长依赖性时,即使当波长之间的差异较小时,也可以获得几乎相同的衰减程度 并且通过考虑掺杂剂的类型和面积以及包层的折射率与芯的轴向部分之间的差值Delta2与包层的折射率与折射率之间的差值Δ1的比值 外围部分,即Delta1 / Delta2。 另一方面,在将掺杂剂的浓度抑制到可实现的范围的同时,衰减的差异增加。

    ASK modulation circuit
    45.
    发明授权
    ASK modulation circuit 失效
    ASK调制电路

    公开(公告)号:US06504880B1

    公开(公告)日:2003-01-07

    申请号:US09384334

    申请日:1999-08-27

    IPC分类号: H03C152

    CPC分类号: H04L27/04

    摘要: An Amplitude Shift Keying (ASK) modulating circuit includes an oscillation circuit generating a pulse oscillation having a given frequency. A frequency divider is provided having a binary counter unit and having at least an input terminal, an output terminal and a reset terminal. The frequency divider is active and inactive when the reset terminal thereof is applied with low and high levels of a transmission signal wave, respectively, and divides the pulse oscillation while the frequency divider is active. The transmission signal wave is modulated together with a carrier frequency which is identical to the divided frequency.

    摘要翻译: 振幅键控(ASK)调制电路包括产生具有给定频率的脉冲振荡的振荡电路。 提供了具有二进制计数器单元并且至少具有输入端子,输出端子和复位端子的分频器。 当分频器的复位端分别施加低电平和高电平的发送信号波时,分频器有效且无效,并且在分频器有效时分频脉冲振荡。 传输信号波与与分频相同的载波频率一起被调制。

    Remote control apparatus
    46.
    发明授权
    Remote control apparatus 有权
    遥控器

    公开(公告)号:US06281599B1

    公开(公告)日:2001-08-28

    申请号:US09345838

    申请日:1999-07-01

    IPC分类号: B60R2500

    摘要: A remote control apparatus comprises a vehicle-mounted unit including a transmitter (26, 28, 23) for transmitting an ID request, a receiver (32, 33) for receiving a reply ID transmitted in response to the ID request, controller (31) for controlling the operation state of equipment (40, 60) depending on whether the receiver (32, 33) receives the ID, as well as a portable unit (10) for transmitting a reply ID in response to the ID request. When a hand sensor (1) provided in a door handle of a vehicle senses no hand and the receiver (32, 33) receives an ID, the controller (31) decreases the transmission power of the ID request. The hand sensor (1) comprises a slot antenna having an outside door handle, the surface of which is formed of a conductive material, a slit formed in the conductive material, and feeding points. The antenna is used for transmission of the ID request.

    摘要翻译: 一种遥控装置,包括:车载装置,包括用于发送ID请求的发射机(26,28,23);接收机(32,33),用于接收响应于所述ID请求而发送的应答ID;控制器(31) 用于根据接收机(32,33)是否接收到ID来控制设备(40,60)的操作状态,以及响应于ID请求发送回复ID的便携式单元(10)。 当设在车辆的门把手中的手感测器(1)感测不到手,并且接收器(32,33)接收到ID时,控制器(31)降低ID请求的发送功率。 手传感器(1)包括具有外门把手的缝隙天线,其外表面由导电材料形成,狭缝形成在导电材料中,并且馈电点。 该天线用于传输ID请求。

    Microstrip antenna device having three resonance frequencies
    47.
    发明授权
    Microstrip antenna device having three resonance frequencies 失效
    具有三个共振频率的微带天线装置

    公开(公告)号:US5512910A

    公开(公告)日:1996-04-30

    申请号:US234634

    申请日:1994-04-28

    摘要: A microstrip antenna device is disclosed as having three resonance frequencies comprising, a dielectric sheet whose thickness is smaller than the used wave length, a radiating conductor sheet which is disposed on one surface of the dielectric sheet and which is a rectangular shape and has line load in the center of one side of the rectangle, and a ground conductor sheet disposed on the other surface of the dielectric sheet.

    摘要翻译: 公开了一种微带天线装置,其具有三个谐振频率,其包括厚度小于所使用的波长的电介质片,布置在电介质片的一个表面上并且具有线负载的辐射导体片 在矩形的一侧的中心,以及布置在电介质片的另一个表面上的接地导体片。

    Signal receiver for global positioning system
    48.
    发明授权
    Signal receiver for global positioning system 失效
    用于全球定位系统的信号接收器

    公开(公告)号:US5402441A

    公开(公告)日:1995-03-28

    申请号:US108079

    申请日:1993-08-17

    CPC分类号: G01S19/22

    摘要: A GPS signal receiver has a PN code generator for producing a PN code identical to a PN code in a received GPS signal which is transmitted from a GPS satellite, the PN code produced by the PN code generator being controllable in phase, a PN code correlator for correlating the received GPS signal with the PN code produced by the PN code generator so as to code-strip the received GPS signal, a signal search unit for monitoring a correlated output signal from the PN code correlator and controlling the phase of the PN code produced by the PN code generator to search for a correlated output signal in excess of a predetermined value, a signal determining unit for determining the correlated output signal in excess of the predetermined value as being produced by a direct wave of the GPS signal, and a signal tracking unit for controlling the phase of the PN code produced by the PN code generator to track a peak of the correlated output signal that is determined as being produced by the direct wave of the GPS signal.

    摘要翻译: GPS信号接收机具有用于产生与从GPS卫星发送的接收的GPS信号中的PN码相同的PN码的PN码发生器,由PN码发生器产生的PN码同相控制,PN码相关器 用于将所接收的GPS信号与由PN码发生器产生的PN码相关联,以便对所接收的GPS信号进行编码;信号搜索单元,用于监视来自PN码相关器的相关输出信号并控制PN码的相位 由PN码发生器产生的用于搜索超过预定值的相关输出信号的信号确定单元,用于确定由GPS信号的直接波产生的超过预定值的相关输出信号,以及 信号跟踪单元,用于控制由PN码发生器产生的PN码的相位,以跟踪被确定为由直接w产生的相关输出信号的峰值 ave的GPS信号。

    Sealing assembly for filler hole
    49.
    发明授权
    Sealing assembly for filler hole 失效
    填料孔密封组件

    公开(公告)号:US5320460A

    公开(公告)日:1994-06-14

    申请号:US82766

    申请日:1993-06-28

    CPC分类号: B65D39/084 B65D53/06

    摘要: A plug-type sealing assembly for hermetically closing a filler hole 24 of a lid 19 of a container 20, comprises: a plug 1 having a rod portion 3 in an upper part of which a large-diameter head portion 2 is formed, the rod portion 3 having a male screw 5 in its outer peripheral surface; and, a sleeve 8 provided with an axial through-hole together with a countersunk head portion 10 and a slit skirt portion 11 extending downward from a lower end of said countersunk head portion 10. In the through-hole, a female screw 15a, 15b is formed. In the container 20: through the filler hole 24 a sealant 23 is supplied between joint portions of the container 20 so that the container 20 is hermetically sealed; and, the sealing assembly is easily removed from the filler hole 24 to ensure that the sealant 23 is supplemented or replaced with a new one through the filler hole 24 in an easy and a safety manner, and easily mounted again in the filler hole 24 after completion of such supplementing or replacing operation of the sealant 23, by threadably engaging the male screw 5 of the plug 1 with and disengaging from the female screw 15a, 15b of the sleeve 8.

    摘要翻译: 用于密封容器20的盖19的填充孔24的插塞型密封组件包括:插塞1,其上部具有大直径头部2的杆部3,杆 部分3在其外周表面具有外螺纹5; 以及具有与沉头部10一起形成的轴向通孔的套筒8和从所述埋头头部10的下端向下延伸的狭缝裙部11。在通孔中,内螺纹15a,15b 形成了。 在容器20中:通过填充孔24,在容器20的接合部分之间提供密封剂23,使得容器20被气密地密封; 并且密封组件容易从填充孔24移除,以确保密封剂23以容易和安全的方式通过填充孔24被补充或替换为新的密封剂23,并且可以容易地再次安装在填充孔24中 完成这样的补充或更换密封剂23的操作,通过与套筒8的内螺纹15a,15b螺纹接合插头1的外螺纹5与其脱离啮合。

    Belt tensioner unit for internal combustion engine or the like
    50.
    发明授权
    Belt tensioner unit for internal combustion engine or the like 失效
    用于内燃机等的皮带张紧器单元

    公开(公告)号:US4713044A

    公开(公告)日:1987-12-15

    申请号:US904293

    申请日:1986-09-08

    IPC分类号: F16H7/08 F16H7/12

    摘要: The arm on which the idler pulley is supported as well as the tensioner which biases the arm to tension a timing belt or the like are both mounted on a common base plate. The plate is pivotally supported on the engine block and selectively secureable in a desired position. A stopper mechanism which can be used to temporarily disable the biasing and damping functions of the tensioner enables automatic tension setting.

    摘要翻译: 安装有惰轮的臂和张紧器,其张紧张紧器,其张紧手臂以张紧正时皮带或类似物,均安装在共同的底板上。 板被枢转地支撑在发动机缸体上并且可选择性地固定在期望的位置。 可用于临时禁用张紧器的偏置和阻尼功能的止动器机构实现自动张力设定。