公开(公告)号：US5521557A

公开(公告)日：1996-05-28

申请号：US465107

申请日：1995-06-05

申请人： Kazuo Yamashita ,  Nobuyuki Adachi

发明人： Kazuo Yamashita ,  Nobuyuki Adachi

IPC分类号： H03L1/00 ,  H03B1/04 ,  H03L7/00 ,  H03L7/02 ,  H03L7/099 ,  H03L7/113 ,  H03L7/085 ,  H03L7/087

CPC分类号： H03L7/02 ,  H03L7/113

摘要： A delay detection circuit and a low-noise oscillation circuit using such a delay detection circuit. When the oscillation output of a VCO is to be supplied to two high frequency mixers, a .pi./2 phase shifter 24 in the front stage of one of the high frequency mixers gives a quadrature form. High frequency components are removed from the output voltage of the high frequency mixers by LPF. DC components are also removed from the output voltage of the high frequency mixers by HPF. The output voltages of low frequency mixers contain secondary phase noise components proportional to squared phase noise components and primary phase noise components proportional to the phase noise components and also depending on the delay time .tau. of a delay unit. When the output voltage of one of the low frequency mixers is subtracted from the output voltage of the other low frequency mixer, the secondary phase noise components are offset and the dependence on the delay time .tau. is removed from the primary phase noise components. The resulting voltage is used as a control voltage for the VCO (10). No voltage control delay unit or feedback loop for controlling it are required.

摘要翻译： 延迟检测电路和使用这种延迟检测电路的低噪声振荡电路。 当将VCO的振荡输出提供给两个高频混频器时，高频混频器之一的前级中的pi / 2移相器24提供正交形式。 通过LPF从高频混频器的输出电压中去除高频分量。 也可以通过HPF从高频混频器的输出电压中去除直流分量。 低频混频器的输出电压包含与平方相位噪声分量成正比的次级相位噪声分量和与相位噪声分量成比例的初级相位噪声分量，并且还取决于延迟单元的延迟时间τ。 当从另一个低频混频器的输出电压中减去一个低频混频器的输出电压时，二次相位噪声分量被偏移，并且从主相位噪声分量中去除了对延迟时间τ的依赖。 所得到的电压用作VCO（10）的控制电压。 无需控制电压控制延迟单元或反馈回路。

公开(公告)号：US5497124A

公开(公告)日：1996-03-05

申请号：US366891

申请日：1994-12-30

申请人： Kazuo Yamashita ,  Nobuyuki Adachi ,  Masatoyo Nishibe ,  Masahiko Egawa ,  Akiharu Inoue

发明人： Kazuo Yamashita ,  Nobuyuki Adachi ,  Masatoyo Nishibe ,  Masahiko Egawa ,  Akiharu Inoue

IPC分类号： H03F1/30 ,  H03F3/30 ,  H03F3/45 ,  H03F3/26

CPC分类号： H03F3/45479 ,  H03F3/45071 ,  H03F3/45076

摘要： A class AB push-pull drive circuit has two NPN transistors Q.sub.1, Q.sub.2 and two PNP transistors Q.sub.3, Q.sub.4, the emitters of which are connected together. A constant voltage circuit maintains voltages between the bases of transistors Q.sub.1 and Q.sub.3 and between the bases of transistors Q.sub.2 and Q.sub.4 constant. A differential input voltage is applied across the bases of the transistors Q.sub.1 and Q.sub.2. The collector currents in the transistors Q.sub.1, Q.sub.3, Q.sub.2 and Q.sub.4 increase or decrease in an exponential and differential manner. When the collector currents are in their differential relationship, they are inverted and added to provide a class AB drive current and to increase the output amplitude. The symmetry can also be improved. Since any difference between signal amplification path lengths is eliminated, a differential phase between paths is less likely to be generated in the high-frequency region. Since there is no feedback or the like for class AB drive, it is difficult for any abnormal oscillation to be produced. Since the constant voltage circuits are formed by diodes, the temperature characteristics of the transistors Q.sub.1 to Q.sub.4 can be compensated. Furthermore, the class AB push-pull drive circuit can be driven by a relatively low voltage. The bipolar transistors Q.sub.1 -Q.sub.4 may be replaced by FETs.

摘要翻译： AB类推挽驱动电路具有两个NPN晶体管Q1，Q2和两个PNP晶体管Q3，Q4，其发射极连接在一起。 恒压电路在晶体管Q1和Q3的基极之间以及晶体管Q2和Q4的基极之间保持恒定的电压。 差分输入电压施加在晶体管Q1和Q2的基极之间。 晶体管Q1，Q3，Q2和Q4中的集电极电流以指数和差分方式增加或减少。 当集电极电流处于差分关系时，它们被反相并相加以提供AB级驱动电流并增加输出振幅。 也可以改善对称性。 由于消除了信号放大路径长度之间的差异，所以在高频区域中不太可能产生路径之间的差分相位。 由于AB类驱动不存在反馈等，难以产生异常振荡。 由于恒压电路由二极管形成，所以可以补偿晶体管Q1至Q4的温度特性。 此外，AB类推挽驱动电路可以由相对低的电压驱动。 双极晶体管Q1-Q4可以被FET代替。

公开(公告)号：US5195111A

公开(公告)日：1993-03-16

申请号：US744448

申请日：1991-08-13

申请人： Nobuyuki Adachi ,  Kazuo Yamashita ,  Akiharu Inoue

发明人： Nobuyuki Adachi ,  Kazuo Yamashita ,  Akiharu Inoue

IPC分类号： H03K23/66

CPC分类号： H03K23/667

摘要： A programmable frequency dividing network comprises a plurality of cascade-connected programmable frequency dividing stages each of which divides the frequency of a clock pulse by two and three based on a logic level of a preset input signal used to change a variable division ratio from one to another. In addition, there is provided a gating means for determining or detecting whether or not each of the outputs of programmable frequency dividing stages of the programmable frequency dividing network after a programmable frequency dividing stage as a second stage is brought to a predetermined pattern and an instruction signal for making a decision as to the division of the division ratio by (+1) is inputted, so as to generate the output of a logic level for causing a programmable frequency dividing stage equivalent to a first stage to divide the frequency of the clock pulse by three if it is determined to be positive in the above detection process. Then, the output of the gating means is supplied to the programmable frequency dividing stage corresponding to the first stage in the programmable frequency dividing network so as to select either one of division ratios of n and (n+ 1) with respect to a programmable frequency dividing apparatus comprising the above network and the gating means.

摘要翻译： 可编程分频网络包括多个级联连接的可编程分频级，其中每个级分级的可编程分频级基于用于将可分分频比从1变化到可变分频比的预设输入信号的逻辑电平将时钟脉冲的频率除以2和3 另一个。 此外，提供了一种选通装置，用于确定或检测在作为第二级的可编程分频级之后的可编程分频网络的可编程分频级的每个输出是否被带到预定模式和指令 输入用于决定分频比除以（+1）的信号，以便产生用于使与第一级相当的可编程分频级的逻辑电平的输出来分频时钟 如果在上述检测过程中确定为正，则脉冲为3。 然后，门控装置的输出被提供给与可编程分频网络中的第一级相对应的可编程分频级，以便选择相对于可编程分频的n和（n + 1）的分频比之一 包括上述网络和门控装置的装置。

公开(公告)号：US08587879B2

公开(公告)日：2013-11-19

申请号：US13267468

申请日：2011-10-06

申请人： Nobuyuki Adachi ,  Yasuhiko Obikane ,  Takahiko Sakai

发明人： Nobuyuki Adachi ,  Yasuhiko Obikane ,  Takahiko Sakai

IPC分类号： G02B9/14 ,  G02B3/02

CPC分类号： G02B13/0015 ,  G02B9/12 ,  G02B9/62 ,  G02B9/64 ,  G02B13/00

摘要： A fixed focus lens comprising, sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The first lens group includes an aperture stop. The second lens group is configured by a single lens element. During focusing, the second lens group moves along an optical axis and the first lens group and the third lens group are fixed with respect to an imaging plane.

摘要翻译： 一种固定聚焦透镜，其从物体侧依次具有正屈光力的第一透镜组; 具有负屈光力的第二透镜组; 以及具有正屈光力的第三透镜组。 第一透镜组包括孔径光阑。 第二透镜组由单个透镜元件构成。 在聚焦期间，第二透镜组沿光轴移动，第一透镜组和第三透镜组相对于成像平面固定。

公开(公告)号：US20120147254A1

公开(公告)日：2012-06-14

申请号：US13391289

申请日：2010-12-22

申请人： Nobuyuki Adachi ,  Takuya Imaoka

发明人： Nobuyuki Adachi ,  Takuya Imaoka

IPC分类号： G03B13/32 ,  G02B9/04

CPC分类号： G02B13/04 ,  G02B9/10 ,  G02B13/18

摘要： A compact imaging optical system having a light-weight focusing lens is provided. The imaging optical system includes, in order from an object side to an image side, a front unit in which a negative lens element is arranged closest to the object side, an aperture diaphragm, and a rear unit having positive optical power. In focusing from an infinite distance object to a short distance object, the negative lens element arranged closest to the object side and the aperture diaphragm are fixed with respect to an image surface, and a part of lens elements included in the front unit or the rear unit moves along an optical axis. The imaging optical system satisfies the following condition (1): 0.9

摘要翻译： 提供了一种具有轻量聚焦透镜的紧凑型成像光学系统。 成像光学系统从物体侧到像侧依次包括其中负透镜元件最靠近物体侧布置的前单元，孔径光阑和具有正光焦度的后单元。 在从无限距离物体到短距离物体的聚焦中，最靠近物体侧布置的负透镜元件和孔径光阑相对于图像面固定，并且包括在前单元或后面的透镜元件的一部分 单元沿着光轴移动。 成像光学系统满足以下条件（1）：0.9

公开(公告)号：US08190011B2

公开(公告)日：2012-05-29

申请号：US12695260

申请日：2010-01-28

申请人： Tsuneo Uchida ,  Nobuyuki Adachi

发明人： Tsuneo Uchida ,  Nobuyuki Adachi

IPC分类号： G03B17/00 ,  H04N5/262 ,  G02B15/14

CPC分类号： G02B15/17

摘要： Provided is a zoom lens system including a compact focusing lens unit and having a suppressed change in image magnification at the time of movement of the focusing lens unit. The zoom lens system, in order from an object side to an image side, includes a first lens unit G1 having positive optical power, a second lens unit G2 having negative optical power, a third lens unit G3 having negative optical power and including an aspherical surface, and a fourth lens unit G4. The second lens unit G2 includes at least a lens element having a negative optical power and a lens element having a positive optical power. At the time of zooming, the third lens unit G3 moves in a direction along the optical axis such that an interval between the second lens unit G2 and the third lens unit G3 is made longer at a telephoto limit than the interval at a wide-angle limit. Further, at the time of focusing, the third lens unit G3 moves in the direction along the optical axis such that the interval between the second lens unit G2 and the third lens unit G3 varies.

摘要翻译： 本发明提供一种变焦透镜系统，其包括小型聚焦透镜单元，并且在聚焦透镜单元移动时具有抑制的图像放大变化。 变焦透镜系统从物体侧到像侧依次包括具有正光焦度的第一透镜单元G1，具有负光焦度的第二透镜单元G2，具有负光焦度的第三透镜单元G3，并且包括非球面 表面和第四透镜单元G4。 第二透镜单元G2至少包括具有负光焦度的透镜元件和具有正光焦度的透镜元件。 在变焦时，第三透镜​​单元G3在沿着光轴的方向上移动，使得第二透镜单元G2和第三透镜单元G3之间的间隔在远摄极限处比在广角处的间隔更长 限制。 此外，在聚焦时，第三透镜​​单元G3沿着光轴方向移动，使得第二透镜单元G2和第三透镜单元G3之间的间隔变化。

公开(公告)号：US08120850B2

公开(公告)日：2012-02-21

申请号：US12695309

申请日：2010-01-28

申请人： Tsuneo Uchida ,  Nobuyuki Adachi

发明人： Tsuneo Uchida ,  Nobuyuki Adachi

IPC分类号： G02B27/64 ,  G02B15/14

CPC分类号： G02B15/17 ,  G02B27/0037 ,  G02B27/4205

摘要： Provided is a zoom lens system including a compact focusing lens unit and having a suppressed change in image magnification at the time of movement of the focusing lens unit. The zoom lens system of the present invention, in order from an object side to an image side, includes a first lens unit G1 having positive optical power, a second lens unit G2 having negative optical power, a third lens unit G3 having negative optical power, and a fourth lens unit G4 having positive optical power. At the time of zooming, at least the first lens unit G1 moves from a wide-angle limit to a telephoto limit. The fourth lens unit G4 includes a first sub lens unit having positive optical power and a second sub lens unit having negative optical power, the second sub lens unit being arranged at the image side relative to the first sub lens unit. At the time of compensating image blur caused by vibration applied to the zoom lens system, the first sub lens unit or the second sub lens unit moves in a direction perpendicular to the optical axis.

摘要翻译： 本发明提供一种变焦透镜系统，其包括小型聚焦透镜单元，并且在聚焦透镜单元移动时具有抑制的图像放大变化。 本发明的变焦透镜系统从物体侧到像侧依次包括具有正光焦度的第一透镜单元G1，具有负光焦度的第二透镜单元G2，具有负光焦度的第三透镜单元G3 ，以及具有正光焦度的第四透镜单元G4。 在变焦时，至少第一透镜单元G1从广角限制移动到远摄极限。 第四透镜单元G4包括具有正光焦度的第一子透镜单元和具有负光焦度的第二子透镜单元，第二子透镜单元相对于第一子透镜单元布置在像侧。 在补偿由于施加到变焦透镜系统的振动引起的图像模糊时，第一子透镜单元或第二子透镜单元在垂直于光轴的方向上移动。

公开(公告)号：US07623305B2

公开(公告)日：2009-11-24

申请号：US11811861

申请日：2007-06-12

申请人： Nobuyuki Adachi

发明人： Nobuyuki Adachi

IPC分类号： G02B13/04

CPC分类号： G02B13/04 ,  G02B9/60 ,  G02B13/0045

摘要： An image capturing lens including: in order from an object side, a first lens group having a negative refractive power; a stop; and a second lens group having a positive refractive power; the first lens group including, in order from the object side, a first lens in a meniscus shape having a convex surface which faces the object side and a negative refractive power, and a second lens in a meniscus shape having a convex surface which faces the object side and a positive refractive power, and the second lens group including, in order from the object side, a third lens in a double-convex shape having a positive refractive power, a fourth lens in a double-concave shape having a negative refractive power, and a fifth lens having a positive refractive power.

摘要翻译： 一种图像拍摄透镜，包括：从物体侧起依次具有负折射力的第一透镜组; 停下来 和具有正折光力的第二透镜组; 所述第一透镜组从物体依次包括具有面向物体侧的凸面的表面和负屈光力的弯月形状的第一透镜和弯月面形状的第二透镜，所述第二透镜具有面向所述物体侧的凸面 物体侧和正屈光力，并且第二透镜组从物体侧依次包括具有正屈光力的双凸形状的第三透镜，具有负折射率的双凹面形状的第四透镜 功率和具有正屈光力的第五透镜。

公开(公告)号：US20090251794A1

公开(公告)日：2009-10-08

申请号：US12416345

申请日：2009-04-01

申请人： Nobuyuki Adachi ,  Tsuneo Uchida

发明人： Nobuyuki Adachi ,  Tsuneo Uchida

IPC分类号： G02B15/14

CPC分类号： G02B15/161

摘要： A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit. The zoom lens system according to the present invention, in order from an object side to an image side, comprises: a first lens unit having positive optical power; a second lens unit having negative optical power; and at least three subsequent lens units, wherein the at least three subsequent lens units, in order from an object side to an image side, include: a lens unit A having positive optical power; a lens unit B having positive optical power and arranged on the image side relative to the lens unit A; and a lens unit C having negative optical power and arranged on the image side relative to the lens unit A, the lens unit C being located on the most image side, at the time of zooming, all lens units move in a direction along the optical axis so that intervals between the lens units vary, and at the time of focusing, the lens unit B moves in a direction along the optical axis.

摘要翻译： 提供一种变焦透镜系统，其包括紧凑构造的聚焦透镜单元，并且在聚焦透镜单元移动时具有抑制的图像放大率的变化。 根据本发明的变焦透镜系统，从物体侧到像侧依次包括：具有正光焦度的第一透镜单元; 具有负光焦度的第二透镜单元; 以及至少三个随后的透镜单元，其中，从物体侧到像侧的顺序的至少三个后续透镜单元包括：具有正光焦度的透镜单元A; 透镜单元B具有正的光焦度并且相对于透镜单元A布置在像侧上; 以及透镜单元C，其具有负光焦度并相对于透镜单元A布置在像侧，透镜单元C位于最大像侧，在变焦时，所有透镜单元沿着光学方向移动 使得透镜单元之间的间隔变化，并且在聚焦时，透镜单元B沿着光轴方向移动。

公开(公告)号：US07061687B2

公开(公告)日：2006-06-13

申请号：US10897007

申请日：2004-07-23

申请人： Nobuyuki Adachi

发明人： Nobuyuki Adachi

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens includes a negative first lens group G1 fixed during power variations, a positive second lens group G2 moving from an image side toward the object side from the wide-angle end toward the telescopic end during power variations, and a negative third lens group G3 moving on the optical axis during power variations in this order from an object side. The third lens group G3 is provided with a lens L31 serving as a front group, and a lens L32 arranged as a rear group with an air space interposed between this lens L31 and the lens L32. When f1 denotes the focal length of the first lens group G1, f2 denotes the focal length of the second lens group G2, and y denotes the diagonal length of an image pickup plane, Formulas 1.3

摘要翻译： 变焦透镜包括在功率变化期间固定的负第一透镜组G 1，在功率变化期间从广角端朝向望远端从像侧朝向物体侧移动的正第二透镜组G 2和负第三透镜组G 2 透镜组G 3从物体侧按照该顺序在功率变化期间在光轴上移动。 第三透镜组G 3设置有用作前组的透镜L 31和布置成后组的透镜L 32，在透镜L 31和透镜L 32之间插入有空气空间。当f 1表示 第一透镜组G 1的焦距，f 2表示第二透镜组G 2的焦距，y表示图像拾取面的对角线长度，公式1.3 <| f 1 / y|<3.6和1.1 满足