PLL circuit having a multiloop, and FM receiving method and apparatus
able to utilize the same
    1.
    发明授权
    PLL circuit having a multiloop, and FM receiving method and apparatus able to utilize the same 失效
    具有多回路的PLL电路以及能够利用它的FM接收方法和装置

    公开(公告)号:US5517685A

    公开(公告)日:1996-05-14

    申请号:US227125

    申请日:1994-04-13

    CPC分类号: H03L7/087

    摘要: The PLL circuit provides both the advantages of analog phase control, in which a good C/N ratio can be realized, and the advantages of digital phase control, in which broad-band lock can be performed. A multi-channel FM receiving method and apparatus are able to utilize the PLL circuit to reduce the influence of the leakage occurring among input signals and suppress image disturbance. One PLL circuit includes: a VCO; a pre-scaler for dividing a feedback signal obtained from the VCO; a first distributor for distributing the feedback signal to send first and second digital feedback signals; a second distributor for distributing a reference signal to send a digital reference signal and an analog reference signal; a digital phase comparator for comparing the digital reference signal and the first digital feedback signal with each other to send a digital phase error signal; a charge pump; a mixer for adding the digital phase error signal to an analog phase error signal, which is obtained by comparing the analog reference signal with the second digital feedback signal to send a composite phase error signal; and a low-pass filter for eliminating high frequency components from the composite phase error signal to input the resultant signal to the VCO.

    摘要翻译: PLL电路既提供了可实现良好的C / N比的模拟相位控制的优点,也可以进行宽带锁定的数字相位控制的优点。 多通道FM接收方法和装置能够利用PLL电路来减少输入信号之间发生的泄漏的影响并抑制图像干扰。 一个PLL电路包括:VCO; 用于分割从VCO获得的反馈信号的预定标器; 用于分配反馈信号以发送第一和第二数字反馈信号的第一分配器; 用于分配参考信号以发送数字参考信号和模拟参考信号的第二分配器; 数字相位比较器,用于将数字参考信号和第一数字反馈信号彼此进行比较以发送数字相位误差信号; 电荷泵; 混频器,用于将数字相位误差信号加到模拟相位误差信号上,模拟相位误差信号通过将模拟参考信号与第二数字反馈信号进行比较而发送复合相位误差信号; 以及用于从复合相位误差信号中消除高频分量的低通滤波器,以将所得到的信号输入到VCO。

    Apparatus for laser light medical treatment
    2.
    发明授权
    Apparatus for laser light medical treatment 失效
    激光治疗仪

    公开(公告)号:US4561440A

    公开(公告)日:1985-12-31

    申请号:US442083

    申请日:1982-11-16

    摘要: A laser light medical treatment apparatus has a contact detection means comprising a pair of contact tips 16a, 16b on both sides of a laser light emission hole 6 so that when the hand set 1, 30 of the apparatus is applied on the skin of a patient. The contact tips detect touching on the skin by means of a small conduction current thereacross, thereby closing a switching circuit 46, 44 to actuate the laser 4 to oscillate. In addition, warning sound means 8 and warning lamp means 7 are provided so as to warn of the light beam emission of the laser, which light is invisible and dangerous to the human eye.

    摘要翻译: 激光治疗装置具有接触检测装置,其包括在激光发射孔6的两侧上的一对接触尖端16a,16b,使得当将该装置的手套1,30施加到患者的皮肤上时 。 接触尖端通过其周围的小的传导电流来检测皮肤上的接触,从而闭合切换电路46,44以激活激光器4振荡。 此外,提供警告声音装置8和警告灯装置7以警告激光的光束发射,该光对人眼是不可见的和危险的。

    Color television format using pulse frequency and pulse width modulation
    3.
    发明授权
    Color television format using pulse frequency and pulse width modulation 失效
    彩色电视格式采用脉冲频率和脉冲宽度调制

    公开(公告)号:US4945403A

    公开(公告)日:1990-07-31

    申请号:US289825

    申请日:1988-12-27

    摘要: A luminance signal in a component video signal is pulse frequency modulated, and the pulse frequency modulated signal is sequentially pulse width modulated by two color difference signals alternately. Thus, the component video signal is transmitted as one pulse train signal efficiently without extending the transmission band widely. A sound signal and a data signal can also be transmitted as digital signal in the one pulse train signal. The luminance signal and two color difference signals may also be inverted line-by-line prior to being modulated.

    摘要翻译: 分量视频信号中的亮度信号(Y)被脉冲频率调制,并且脉冲频率调制信号被两个色差信号(Pr,Pb)交替地顺序地进行脉宽调制。 因此,分量视频信号作为一个脉冲串信号被有效传输,而不会广泛地扩展传输频带。

    Front fork
    4.
    发明授权
    Front fork 失效
    前叉

    公开(公告)号:US07926795B2

    公开(公告)日:2011-04-19

    申请号:US12071655

    申请日:2008-02-25

    IPC分类号: F16F5/00

    CPC分类号: F16F9/067 B62K25/08 F16F9/462

    摘要: A front fork comprises a telescopic tube (1, 32) in which a damper cylinder (3) generates a damping force. The damper cylinder (3) comprises a guide sleeve (4) and a free piston (6) having an inner circumference which slides on the outer circumference of the guide sleeve (4) and an outer circumference which slides on the inner circumference of the damper cylinder (3). A lateral through-hole (11) formed in the guide sleeve (4) connects an auxiliary reservoir (R3) formed outside the damper cylinder (3) and an oil reservoir (R2) via a flow path (12) formed in the guide sleeve (4) according to the displacement position of the free piston (6), thereby reducing the number of seal members required to be fitted on the outer circumference of the free piston (6) and enabling the free piston (6) to slide smoothly even when the telescopic tube (1, 32) suffers a bending force.

    摘要翻译: 前叉包括伸缩管(1,32),阻尼缸(3)产生阻尼力。 阻尼气缸(3)包括导向套筒(4)和自由活塞(6),其具有在导套(4)的外圆周上滑动的内圆周和在阻尼器的内圆周上滑动的外圆周 气缸(3)。 形成在引导套筒(4)中的横向通孔(11)通过形成在引导套筒(4)中的流动路径(12)将形成在阻尼器气缸(3)外部的辅助容器(R3)和储油器 (6)的位移位置,从而减少了需要安装在自由活塞(6)的外周上的密封件的数量,并使自由活塞(6)平滑地滑动 当伸缩管(1,32)遭受弯曲力时。

    Front fork
    5.
    发明申请
    Front fork 失效
    前叉

    公开(公告)号:US20080230335A1

    公开(公告)日:2008-09-25

    申请号:US12071655

    申请日:2008-02-25

    IPC分类号: F16F9/18

    CPC分类号: F16F9/067 B62K25/08 F16F9/462

    摘要: A front fork comprises a telescopic tube (1, 32) in which a damper cylinder (3) generates a damping force. The damper cylinder (3) comprises a guide sleeve (4) and a free piston (6) having an inner circumference which slides on the outer circumference of the guide sleeve (4) and an outer circumference which slides on the inner circumference of the damper cylinder (3). A lateral through-hole (11) formed in the guide sleeve (4) connects an auxiliary reservoir (R3) formed outside the damper cylinder (3) and an oil reservoir (R2) via a flow path (12) formed in the guide sleeve (4) according to the displacement position of the free piston (6), thereby reducing the number of seal members required to be fitted on the outer circumference of the free piston (6) and enabling the free piston (6) to slide smoothly even when the telescopic tube (1, 32) suffers a bending force.

    摘要翻译: 前叉包括伸缩管(1,32),阻尼缸(3)产生阻尼力。 阻尼气缸(3)包括导向套筒(4)和自由活塞(6),其具有在导套(4)的外圆周上滑动的内圆周和在阻尼器的内圆周上滑动的外圆周 气缸(3)。 形成在引导套筒(4)中的横向通孔(11)通过形成在所述导向套筒(4)中的流动路径(12)将形成在所述阻尼气缸(3)外部的辅助容器(R 3)和储油器 导向套筒(4)根据自由活塞(6)的位移位置,从而减少了需要安装在自由活塞(6)的外周上的密封件的数量,并使自由活塞(6)滑动 即使当伸缩管(1,32)遭受弯曲力时也是如此。

    Apparatus for transporting/mounting a building material
    6.
    发明授权
    Apparatus for transporting/mounting a building material 失效
    运输/安装建筑材料的设备

    公开(公告)号:US5259721A

    公开(公告)日:1993-11-09

    申请号:US427588

    申请日:1989-10-26

    摘要: In order to safely transport a building material to its mounting area of a building body and to temporarily hold the same until it is firmly mounted on the mounting area on the building site, according to the present invention, there is provided, an apparatus for transporting/mounting a building material including a self-propelled vehicle body provided with a steering/driving device, the vehicle body assuming a substantially L-shaped form constructed of an upright main body and a pair of lower frames which are parallelly spaced apart from each other and horizontally extend from opposite sides of a lower portion of the main body; an elevator unit movably mounted on a vertical side portion of the main body so as to be vertically movable along the vertical side portion of the main body; a first frame horizontally extending forward from a vertical side of the elevator unit, the first frame having its base end mounted on the elevator unit so as to be horizontally movable in a horizontal plane; a second frame slidably mounted in the first frame so as to be extended therefrom and retracted therein in a longitudinal direction of the first frame; and a support for supporting a building material, the support being so mounted on a front end of the second frame as to be vertically swingable and as to be rotatable on an axis perpendicular to a plane of the building material having been supported by the support.

    摘要翻译: 为了安全地将建筑材料运输到其建筑物的安装区域并暂时保持建筑材料,直到其牢固地安装在建筑工地的安装区域上,根据本发明,提供了一种用于运输 /安装包括设置有转向/驱动装置的自行车车身的建筑材料,所述车身呈现由直立主体和彼此平行间隔开的​​一对下框架构成的大致L形的形式 并且从主体的下部的相对侧水平地延伸; 电梯单元,其可移动地安装在主体的垂直侧部,以便沿着主体的垂直侧部可垂直移动; 从电梯单元的垂直侧向前水平延伸的第一框架,其第一框架的基端安装在电梯单元上,以便能够在水平面上水平移动; 第二框架,其可滑动地安装在所述第一框架中,以便沿所述第一框架的纵向方向从所述第一框架中延伸并在其中缩回; 以及用于支撑建筑材料的支撑件,所述支撑件被安装在所述第二框架的前端上以便可垂直摆动并且能够在垂直于由所述支撑件支撑的建筑材料的平面的轴线上旋转。