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公开(公告)号：US20070164819A1
公开(公告)日：2007-07-19
申请号：US10593720
申请日：2005-03-24
申请人： Junetsu Urata , Naoki Onishi , Masaki Suto , Hironori Yokoyama
发明人： Junetsu Urata , Naoki Onishi , Masaki Suto , Hironori Yokoyama
IPC分类号： H03F3/68
CPC分类号： H03F1/0288 , H03F1/30 , H03F2200/447 , H03F2200/543 , H05K1/0243 , H05K2201/0187
摘要： With an amplifier configured by including Doherty-type amplifier sections 21 to 25, the area of the circuits is reduced so that the size reduction is achieved. Moreover, the properties of the Doherty-type amplifier sections (Doherty properties) are stabilized against any environmental change of humidity and temperature. As an example, the permittivity of a substrate 3 configuring one or more of quarter wavelength lines 23 and/or 24 included in the Doherty-type amplifier sections 21 to 25 is increased compared with the permittivity of a substrate 2 in a close range. As another example, a line portion forming an output circuit of a carrier amplifier in the Doherty-type amplifier sections is configured by using a substrate material being physically stable against either or both of any change observed in the humidity and the temperature.
摘要翻译： 通过包括Doherty型放大器部分21至25构成的放大器，电路的面积减小，从而实现了尺寸减小。 此外，Doherty型放大器部分（Doherty性能）的性能可以抵抗任何湿度和温度的环境变化。 作为示例，构成包括在Doherty型放大器部21至25中的四分之一波长线23和/或24中的一个或多个的基板3的介电常数相对于近距离的基板2的介电常数增加。 作为另一个例子，在Doherty型放大器部分中形成载流子放大器的输出电路的线路部分通过使用在湿度和温度中观察到的任何变化中的任一个或两个而物理上稳定的衬底材料来构成。
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公开(公告)号：US08633735B2
公开(公告)日：2014-01-21
申请号：US13200024
申请日：2011-09-15
申请人： Yasuo Kitayama , Hiroyuki Demura , Naoki Onishi
发明人： Yasuo Kitayama , Hiroyuki Demura , Naoki Onishi
IPC分类号： H03B21/00
CPC分类号： H03B21/00 , H03G1/0058 , H03G3/30 , H03L5/00
摘要： To provide, in a frequency synthesizer including: a variable attenuator provided at a subsequent stage of a voltage controlled oscillator; a detector; and a control unit outputting a control voltage for adjusting an attenuation amount of the variable attenuator via a digital/analog converter in accordance with a detection voltage, a technology with which a spurious due to a change in an output of the digital/analog converter can be suppressed. A low-pass filter is provided between an output side of a digital/analog converter and a variable attenuator to cut a frequency component corresponding to an overshoot generated when an output of the digital/analog converter is changed. Further, a period of time from when a control unit outputs a control voltage to when it reads a signal level detected by a detector is set to a period of time longer than a time constant of the low-pass filter determined by a cut-off frequency of the low-pass filter so that no influence is exerted on an operation of automatically controlling the signal level.
摘要翻译： 提供一种频率合成器，包括：设置在压控振荡器的后续级的可变衰减器; 检测器 以及控制单元，其根据检测电压输出用于经由数字/模拟转换器调整可变衰减器的衰减量的控制电压，由于数字/模拟转换器的输出的变化引起的寄生的杂散技术 被压制 在数字/模拟转换器的输出侧和可变衰减器之间提供低通滤波器，以便在数字/模拟转换器的输出改变时产生的过冲相应的剪切频率分量。 此外，从控制单元输出控制电压到读取检测器检测到的信号电平的时间段被设置为比由截止器确定的低通滤波器的时间常数更长的时间段 低通滤波器的频率，从而不会对自动控制信号电平的操作产生影响。
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公开(公告)号：US07893774B2
公开(公告)日：2011-02-22
申请号：US12826236
申请日：2010-06-29
申请人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
发明人： Yasuo Kitayama , Hiroki Kimura , Naoki Onishi , Nobuo Tsukamoto
摘要： A VCO driving circuit and a frequency synthesizer wherein the impedance viewed from a VCO control terminal is reduced to prevent the VCO phase noise characteristic from degrading. A VCO driving circuit and a frequency synthesizer having the VCO driving circuit, which comprises a coarse adjustment DAC that receives a digital data, which has a coarse adjustment frequency, to output an analog signal; a fine adjustment DAC that receives a digital data, which has a fine adjustment frequency, to output an analog signal; a low response speed LPF5 that removes noise from the output signal from the coarse adjustment DAC and then provides the resultant signal as an input to a VCO control terminal; a high response speed LPF7 that converts the output signal from the fine adjustment DAC to a voltage, thereby smoothing the signal; a resistor that connects an input stage of the LPF5 to that of the LPF7; and a capacitor used for providing a capacitive coupling such that the output of the LPF7 is added to that of the LPF5.
摘要翻译： VCO驱动电路和频率合成器，其中从VCO控制端子观察的阻抗减小，以防止VCO相位噪声特性降级。 VCO驱动电路和具有VCO驱动电路的频率合成器，其包括具有粗略调整频率的接收数字数据的粗调DAC以输出模拟信号; 微调DAC，其接收具有微调频率的数字数据，以输出模拟信号; 低响应速度LPF5，其从粗调DAC输出信号中去除噪声，然后将所得到的信号作为输入提供给VCO控制端; 高响应速度LPF7，其将来自微调DAC的输出信号转换为电压，从而平滑信号; 将LPF5的输入级与LPF7的输入级连接的电阻; 以及用于提供电容耦合的电容器，使得LPF7的输出被添加到LPF5的输出。
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公开(公告)号：US20100264961A1
公开(公告)日：2010-10-21
申请号：US12801772
申请日：2010-06-24
申请人： Naoki Onishi
发明人： Naoki Onishi
IPC分类号： H03L7/08
摘要： Provided is an oscillation frequency control circuit for correcting its frequency, keeping the oscillation frequency stable when self-oscillating, and oscillating with a control voltage generated by making a fixed voltage given from outside variable. In the oscillation frequency control circuit, a CPU selects/outputs the control voltage preferentially according to a command of a control voltage selection. If the command is not given and the level of an outside reference signal detected by a detecting circuit is within an adequate range, it turns a select switch on. If the command is not given and the level of the outside reference signal is out of the adequate range, it turns the select switch off and outputs information about pulse generation stored in a memory to a PWM circuit.
摘要翻译： 提供了一种用于校正其频率的振荡频率控制电路，当自振荡时保持振荡频率稳定，并且通过由外部变量产生的固定电压产生的控制电压进行振荡。 在振荡频率控制电路中，CPU根据控制电压选择的指令优先选择/输出控制电压。 如果没有给出命令，并且由检测电路检测到的外部参考信号的电平在适当的范围内，则转动选择开关。 如果没有给出指令并且外部参考信号的电平超出了适当的范围，则关闭选择开关，并将存储在存储器中的脉冲发生信息输出到PWM电路。
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公开(公告)号：US20090308142A1
公开(公告)日：2009-12-17
申请号：US12311262
申请日：2007-09-27
CPC分类号： G01N29/036 , G01N5/02 , G01N29/022 , G01N29/30 , G01N2291/0256 , G01R31/2829
摘要： In a sensing instrument using a quartz sensor on whose front surface an adsorption layer for adsorbing a substance to be sensed is formed and which changes in natural frequency by the adsorption of the substance to be sensed, the present invention has an object to quickly detect a trouble of the quartz sensor to prevent an operator from recognizing an incorrect measurement result.In the present invention, a level detecting circuit detecting a signal level of an oscillation output of an oscillator circuit is provided, and after the time for stabilization passes after the power-on time, a computer takes a level detection value therein to compare the signal level and a threshold value. Then, when the signal level is lower than the threshold value, the signal level is determined as abnormal and, for example, the abnormality notification is displayed on a display unit, whereby an operator is notified of the occurrence of the abnormality.
摘要翻译： 在使用石英传感器的感测装置中，通过吸附待检测物质的表面形成吸附被检测物质的吸附层和固有频率的变化，本发明的目的是快速检测 石英传感器的故障，以防止操作者识别不正确的测量结果。 在本发明中，提供了检测振荡电路的振荡输出的信号电平的电平检测电路，并且在通电时间稳定的时间之后，计算机在其中进行电平检测值，以比较信号 水平和阈值。 然后，当信号电平低于阈值时，信号电平被确定为异常，并且例如，异常通知被显示在显示单元上，从而通知操作者异常的发生。
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公开(公告)号：US07555952B2
公开(公告)日：2009-07-07
申请号：US11793985
申请日：2005-12-28
申请人： Naoki Onishi , Tsuyoshi Shiobara
发明人： Naoki Onishi , Tsuyoshi Shiobara
CPC分类号： G01N5/02 , G01N29/022 , G01N29/036 , G01N29/222 , G01N2291/0255 , G01N2291/0256
摘要： The present invention prevents instability of frequency measurement caused by spatial connection between quartz sensors adjacent to each other when a plurality of quartz sensors, including a quartz resonator which varies a national frequency due to adsorption of an object, are to be detected. A common measuring unit measures a variation in frequency of each oscillation circuit corresponding to each quartz sensor by switching and connection in turn, and the oscillation circuits, excepting an oscillation circuit connected to the measuring unit by switches, are connected to a load on the output side of the oscillation circuit channels connected to the measuring unit and the load value is such that the respective oscillating frequencies are forcibly separated from each other.
摘要翻译： 本发明能够防止由于吸收物体而导致的国际频率变化的石英振子的多个石英传感器相互邻接的石英传感器之间的空间连接引起的频率测量的不稳定性。 公共测量单元依次切换和连接测量与每个石英传感器相对应的每个振荡电路的频率变化，除了通过开关连接到测量单元的振荡电路之外的振荡电路连接到输出端上的负载 连接到测量单元的振荡电路通道的一侧和负载值使得各个振荡频率彼此强制分离。
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公开(公告)号：US20090167382A1
公开(公告)日：2009-07-02
申请号：US12225573
申请日：2007-03-30
IPC分类号： H03L7/06
摘要： It is an object of the present invention to provide a PLL apparatus realizing extremely high frequency stability.As a concrete means for solving the problem, an A/D (analog/digital) conversion unit samples a standard signal based on a 40 MHz frequency signal, which is a rectangular wave, from an oven-controlled crystal oscillator (OCXO), and an orthogonal transformation unit applies orthogonal transformation to a digital signal from the A/D conversion unit to extract a real part (I) and an imaginary part (Q) which are complex expression of a phase vector equivalent to a phase difference between the standard signal and the frequency signal from the OCXO. An angular velocity of this vector is detected and a direct-current voltage according to the angular velocity is generated and supplied to the OCXO via a PWM control unit.
摘要翻译： 本发明的目的是提供一种实现极高频率稳定性的PLL装置。 作为解决问题的具体手段，A / D（模拟/数字）转换单元基于来自烤箱控制的晶体振荡器（OCXO）的40MHz频率信号（矩形波）对标准信号进行采样， 正交变换单元对来自A / D转换单元的数字信号应用正交变换，提取与标准信号之间的相位差相当的相位矢量的复数表达式的实部（I）和虚部（Q） 和来自OCXO的频率信号。 检测该矢量的角速度，并产生根据角速度的直流电压，并通过PWM控制单元将其提供给OCXO。
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公开(公告)号：US20090134946A1
公开(公告)日：2009-05-28
申请号：US12320321
申请日：2009-01-23
申请人： Naoki Onishi
发明人： Naoki Onishi
IPC分类号： H03L7/085
摘要： Provided is an oscillation frequency control circuit, which corrects its own frequency so that it can hold an oscillation frequency stably even when it does not have an input of a highly stable reference signal but makes a self-run. The oscillation frequency control circuit comprises a voltage-controlled oscillator, a frequency divider, a phase comparator, a loop filter, a detecting circuit for detecting an external reference signal, a PWM circuit for generating pulses, when pulse generating information inputs, to output the pulses to the loop filter, a memory for storing the pulse generating information corresponding to voltage information, a switch for turning ON/OFF the connection between the phase comparator and the loop filter, and a CPU for turning ON the switch, if the level of the external reference signal detected by the detecting circuit is within a proper range, but OFF the switch, if the level is outside of the proper range, thereby to output the pulse generating information stored in the memory, to the PWM circuit.
摘要翻译： 提供了一种振荡频率控制电路，其校正其自身频率，使得即使当其不具有高度稳定的参考信号的输入但是自身运行时，其也可以稳定地保持振荡频率。 振荡频率控制电路包括压控振荡器，分频器，相位比较器，环路滤波器，用于检测外部参考信号的检测电路，用于产生脉冲的PWM电路，当脉冲产生信息输入时，输出 脉冲到环路滤波器，用于存储对应于电压信息的脉冲产生信息的存储器，用于打开/关闭相位比较器和环路滤波器之间的连接的开关，以及用于接通开关的CPU，如果 检测电路检测到的外部参考信号在适当的范围内，但如果电平在适当的范围之外，则关闭开关，从而将存储在存储器中的脉冲产生信息输出到PWM电路。
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公开(公告)号：US20060182597A1
公开(公告)日：2006-08-17
申请号：US11225850
申请日：2005-09-13
IPC分类号： B66C23/00
CPC分类号： E02F3/34 , Y10T29/49448
摘要： A boom assembly is bent at a longitudinal center portion thereof to present an upwardly convex shape. The assembly includes a front boom body and a rear boom body. The front boom body and the rear main body each includes a main body consisting essentially of a pair of right and left lateral plates and a top plate interconnecting upper edges of the respective lateral plates. The main body is formed with an upper face and a lower edge thereof being bent in a longitudinal direction thereof into an arc face having a predetermined radius of curvature. The front or rear main body further includes a bottom plate disposed downwardly of the top plate and between the right and left lateral plates. Each main body is formed by bending a plate member into a reverse U-shaped cross section and each bottom plate is comprised of a plate member provided separately from the plate member forming the main body.
摘要翻译： 吊杆组件在其纵向中心部分处弯曲以呈现向上凸起的形状。 组件包括前悬臂本体和后悬臂本体。 前悬臂主体和后主体各自包括主体，主体由一对左右侧板和与各侧板的上边缘相互连接的顶板组成。 该主体形成有一个上表面和一个下边缘沿其纵向方向弯曲成具有预定曲率半径的圆弧面。 前后主体还包括设置在顶板下方以及左右侧板之间的底板。 每个主体通过将板构件弯曲成相反的U形横截面而形成，并且每个底板由与构成主体的板构件分开设置的板构件构成。
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公开(公告)号：US20120105110A1
公开(公告)日：2012-05-03
申请号：US13200024
申请日：2011-09-15
申请人： Yasuo Kitayama , Hiroyuki Demura , Naoki Onishi
发明人： Yasuo Kitayama , Hiroyuki Demura , Naoki Onishi
CPC分类号： H03B21/00 , H03G1/0058 , H03G3/30 , H03L5/00
摘要： To provide, in a frequency synthesizer including: a variable attenuator provided at a subsequent stage of a voltage controlled oscillator; a detector; and a control unit outputting a control voltage for adjusting an attenuation amount of the variable attenuator via a digital/analog converter in accordance with a detection voltage, a technology with which a spurious due to a change in an output of the digital/analog converter can be suppressed. A low-pass filter is provided between an output side of a digital/analog converter and a variable attenuator to cut a frequency component corresponding to an overshoot generated when an output of the digital/analog converter is changed. Further, a period of time from when a control unit outputs a control voltage to when it reads a signal level detected by a detector is set to a period of time longer than a time constant of the low-pass filter determined by a cut-off frequency of the low-pass filter so that no influence is exerted on an operation of automatically controlling the signal level.
摘要翻译： 提供一种频率合成器，包括：设置在压控振荡器的后续级的可变衰减器; 检测器 以及控制单元，其根据检测电压输出用于经由数字/模拟转换器调整可变衰减器的衰减量的控制电压，由于数字/模拟转换器的输出的变化引起的寄生的杂散技术 被压制 在数字/模拟转换器的输出侧和可变衰减器之间提供低通滤波器，以便在数字/模拟转换器的输出改变时产生的过冲相应的剪切频率分量。 此外，从控制单元输出控制电压到读取检测器检测到的信号电平的时间段被设置为比由截止器确定的低通滤波器的时间常数更长的时间段 低通滤波器的频率，从而不会对自动控制信号电平的操作产生影响。
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