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    • 4. 发明授权
    • Wide range interpolative voltage controlled oscillator
    • 宽范围内插压控振荡器
    • US08089319B2
    • 2012-01-03
    • US12624623
    • 2009-11-24
    • Masaaki Kaneko
    • Masaaki Kaneko
    • H03B27/00
    • H03K3/0315H03K2005/00052H03L7/0998
    • Systems and methods for increasing the frequency range of an output signal generated by a VCO, where one or more variable delay units are incorporated into an interpolative VCO to decrease the minimum frequency at which the VCO oscillates. In one embodiment, the VCO includes a ring of serially connected inverters, a set of bypass circuits and a set of variable delay units. The bypass circuits are coupled to the ring of serially connected inverters to bypass one or more of the serially connected inverters when enabled. Each variable delay unit delays signal transitions at the input of a corresponding one of the serially connected inverters by a variable amount. The variable delay units may be positioned in series with the ring of inverters, in parallel with the bypass paths, or in parallel with corresponding inverters in the ring of inverters.
    • 用于增加由VCO产生的输出信号的频率范围的系统和方法,其中将一个或多个可变延迟单元并入内插VCO以降低VCO振荡的最小频率。 在一个实施例中,VCO包括串联的反相器环,一组旁路电路和一组可变延迟单元。 旁路电路耦合到串联逆变器的环,以在使能时绕过一个或多个串联的逆变器。 每个可变延迟单元将串联连接的逆变器的相应一个的输入端的信号转变延迟一个可变量。 可变延迟单元可以与逆变器的环与旁路路径并联,或者与逆变器环中的相应逆变器并联。
    • 5. 发明申请
    • Clock Duty Cycle Measurement with Charge Pump Without Using Reference Clock Calibration
    • 使用电荷泵进行时钟占空比测量,不使用参考时钟校准
    • US20090326862A1
    • 2009-12-31
    • US12163081
    • 2008-06-27
    • Jieming QiEskinder HailuDavid William BoerstlerMasaaki Kaneko
    • Jieming QiEskinder HailuDavid William BoerstlerMasaaki Kaneko
    • G04F1/00H03L7/06
    • H03K5/1565
    • Embodiments of the disclosure provide systems and methods for clock duty cycle measurement. A clock signal and a complement of the clock signal are provided to a charge pump during first and second predetermined timing windows. A charge pump is operable to generate first and second output voltages in response to the clock signal and the complement of the clock signal during the first and second timing windows, respectively. In addition a predetermined positive voltage and a ground voltage are applied to the charge pump during predetermined third and fourth timing windows, respectively. The charge pump is operable to generate third and fourth output voltage signals corresponding to the predetermined positive and ground voltages during the third and fourth timing windows, respectively. The first, second, third and fourth voltages are then used to calculate the duty cycle of the clock.
    • 本公开的实施例提供了用于时钟占空比测量的系统和方法。 时钟信号和时钟信号的补码在第一和第二预定定时窗口期间提供给电荷泵。 电荷泵可操作以分别在第一和第二定时窗口期间响应于时钟信号和时钟信号的补码产生第一和第二输出电压。 此外,预定的正电压和接地电压分别在预定的第三和第四定时窗口期间施加到电荷泵。 电荷泵可操作以分别在第三和第四定时窗口期间产生对应于预定正电压和接地电压的第三和第四输出电压信号。 然后,使用第一,第二,第三和第四电压来计算时钟的占空比。
    • 6. 发明授权
    • Inspection device and inspection method
    • 检验装置及检验方法
    • US07576769B2
    • 2009-08-18
    • US10971085
    • 2004-10-25
    • Kenichi HayamiMasaaki Kaneko
    • Kenichi HayamiMasaaki Kaneko
    • H04N7/18H04N9/47
    • G01B11/25G01B11/2433
    • A deviation amount of a top position of a convex surface of a protruding portion formed on a flat member and a deepest position of a concave surface on the back side of the convex surface, is obtained in XY-coordinates in a plane parallel to an extension plane of the flat member. An annular image obtained by illuminating the concave surface is photographed, and the XY-coordinates of the deepest position of the concave surface are obtained based on the image thus obtained. Regarding the convex surface, the X-coordinate and the Y-coordinate of the top position of the convex surface are respectively obtained by a front camera having an image taking optical axis parallel to the extension plane of the flat member and a side camera having an image taking optical axis parallel to the plane and perpendicular to the image taking optical axis of the front camera, and the deviation amount and deviation direction are obtained based on their respective XY-coordinates obtained.
    • 形成在平坦部件上的突出部分的凸起表面的顶部位置的偏移量和与凸起平行的平面中的XY坐标处获得凸面的背面上的凹面的最深位置的偏移量 平面构件的平面。 拍摄通过照射凹面获得的环形图像,并且基于由此获得的图像获得凹面的最深位置的XY坐标。 关于凸表面,凸表面的顶部位置的X坐标和Y坐标分别通过具有平行于平面构件的延伸平面的图像取向光轴的前置照相机和具有 图像取向光轴平行于平面并垂直于前摄像机的摄像光轴,并且基于获得的各自的XY坐标获得偏差量和偏离方向。
    • 7. 发明授权
    • Intake control device for vehicle engine
    • 汽车发动机进气控制装置
    • US07552711B2
    • 2009-06-30
    • US12177457
    • 2008-07-22
    • Masaaki Kaneko
    • Masaaki Kaneko
    • F02D9/10
    • F02D9/1095F02D9/1055F02M3/07F02M35/024F02M35/10039F02M35/10216F02M2003/067
    • An intake control device for a vehicle engine includes: a throttle body; a main throttle valve configured to be opened or closed in response to an operation applied to a throttle grip, the main throttle valve being rotatably supported by the throttle body; a sub-throttle valve configured to be opened or closed under control of an actuator, the sub-throttle valve being rotatably supported by the throttle body; an intake air path formed in the throttle body and provided with the main throttle valve and the sub-throttle valve so as to open or close the intake air path; and a bypass air path that is different from the intake air path and provided with an idle speed control (ISC) valve that is controlled so as to open or close the bypass air path in conjunction with the sub-throttle valve.
    • 一种用于车辆发动机的进气控制装置包括:节气门体; 主节流阀,其构造成响应于施加到节气门手柄的操作而被打开或关闭,所述主节流阀由所述节气门体可旋转地支撑; 副节流阀构造成在致动器的控制下打开或关闭,副节流阀由节气门体可旋转地支撑; 进气通道,其形成在所述节气门体中,并设置有所述主节流阀和所述副节流阀,以打开或关闭所述进气通道; 以及与进气通路不同的旁通空气路径,并且设置有怠速控制(ISC)阀,该怠速控制阀被控制成与副节流阀一起打开或关闭旁通空气路径。
    • 8. 发明申请
    • Systems and Methods for PLL Linearity Measurement, PLL Output Duty Cycle Measurement and Duty Cycle Correction
    • PLL线性度测量,PLL输出占空比测量和占空比校正的系统和方法
    • US20090146743A1
    • 2009-06-11
    • US11952706
    • 2007-12-07
    • Masaaki KanekoDavid W. BoerstlerEskinder HailuJieming Qi
    • Masaaki KanekoDavid W. BoerstlerEskinder HailuJieming Qi
    • H03L7/085H03L7/08
    • H03L7/08
    • Systems and methods for enabling the determination of voltage controlled oscillator (VCO) linearity, duty cycle determination and duty cycle correction in phase locked loop circuits (PLL's.) One embodiment comprises a method including the steps of determining the frequency response of a PLL's VCO as a function of duty cycle, applying a signal based on the VCO output to the VCO input, measuring the resulting frequency of the VCO output signal, determining the duty cycle corresponding to the measured frequency, and configuring a duty cycle correction unit correct the duty cycle of the VCO output signal to about 50%. Determining the frequency response of the VCO may include, for each of several different duty cycle values between 0% and 100%, applying the VCO input signal to the VCO and determining the corresponding frequency of the VCO output signal. This may also be done for duty cycles of 0% and 100%.
    • 用于确定锁相环电路(PLL)中的压控振荡器(VCO)线性度,占空比确定和占空比校正的系统和方法一个实施例包括一种方法,包括以下步骤:将PLL的VCO的频率响应确定为 占空比的功能,将基于VCO输出的信号施加到VCO输入,测量VCO输出信号的最终频率,确定对应于测量频率的占空比,以及配置占空比校正单元校正占空比 的VCO输出信号约为50%。 确定VCO的频率响应可以包括对于0%和100%之间的几个不同占空比值的每一个,将VCO输入信号施加到VCO并确定VCO输出信号的对应频率。 这也可以在0%和100%的占空比下完成。
    • 10. 发明申请
    • Programmable Interpolative Voltage Controlled Oscillator with Adjustable Range
    • 可编程内插电压控制振荡器,可调范围
    • US20090066424A1
    • 2009-03-12
    • US11853905
    • 2007-09-12
    • David W. BoerstlerEskinder HailuMasaaki KanekoJieming Qi
    • David W. BoerstlerEskinder HailuMasaaki KanekoJieming Qi
    • H03L7/00
    • H03L7/18H03L7/0998
    • A programmable interpolative voltage controlled oscillator (VCO) with adjustable frequency range output is provided. With the VCO, programmable delay cells whose size is modifiable based on control inputs to the programmable delay cells are utilized. A different set of control inputs may be provided to programmable delay cells of an inner sub-ring from the set of control inputs provided to programmable delay cells of a main ring of the VCO. The minimum frequency output of the VCO is governed by the main ring programmable delay cell strength with the maximum frequency output of the VCO being governed by a ratio of strengths of the main ring programmable delay cells to the inner sub-ring programmable delay cell. By modifying the control inputs to the inner sub-ring and main ring programmable delay cells, the minimum and maximum frequency outputs, and thus the range between these two frequency outputs, are made programmable.
    • 提供了具有可调频率范围输出的可编程内插压控振荡器(VCO)。 利用VCO,可以利用基于可编程延迟单元的控制输入来修改尺寸的可编程延迟单元。 从提供给VCO的主环的可编程延迟单元的控制输入的集合可以向内部子环的可编程延迟单元提供不同的一组控制输入。 VCO的最小频率输出由主环路可编程延迟单元强度控制,VCO的最大频率输出由主环可编程延迟单元与内部子环可编程延迟单元的强度比控制。 通过修改内部子环和主环可编程延迟单元的控制输入,可以将最小和最大频率输出,从而将这两个频率输出之间的范围编程为可编程。