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1. 发明授权

US07825701B2 Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：US07825701B2
公开(公告)日：2010-11-02
申请号：US12225563
申请日：2007-03-14
申请人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
发明人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
IPC分类号： H03L7/085 , H03L7/08
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As s specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译：本发明的目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新的原理在宽带上精细地设定频率。作为具体的解决方法，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。

2. 发明申请

US20090167367A1 Frequency Synthesizer 有权
标题翻译：频率合成器
公开(公告)号：US20090167367A1
公开(公告)日：2009-07-02
申请号：US12225563
申请日：2007-03-14
申请人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
发明人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
IPC分类号： H03B21/00
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As s specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译：本发明的目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新的原理在宽带上精细地设定频率。作为具体的解决方案，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。

3. 发明授权

US07888974B2 Frequency synthesizer 有权
标题翻译：频率合成器
公开(公告)号：US07888974B2
公开(公告)日：2011-02-15
申请号：US12803294
申请日：2010-06-23
申请人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
发明人： Tsukasa Kobata , Tsuyoshi Shiobara , Kazuo Akaike , Nobuo Tsukamoto
IPC分类号： H03L7/085 , H03L7/08
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As a specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译：本发明的一个目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新颖的原理在宽带上精细地设定频率。作为具体的解决方案，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。

4. 发明授权

US08648625B2 Frequency synthesizer 失效
标题翻译：频率合成器
公开(公告)号：US08648625B2
公开(公告)日：2014-02-11
申请号：US12807982
申请日：2010-09-16
申请人： Kazuo Akaike , Nobuo Tsukamoto , Tsukasa Kobata
发明人： Kazuo Akaike , Nobuo Tsukamoto , Tsukasa Kobata
IPC分类号： G01R29/00 , H03D3/00 , H03D9/00 , H03B21/00 , H03H11/16 , H03K5/13 , H03K3/00 , H03L5/00
CPC分类号： H03L7/185 , H03L7/085 , H03L7/093
摘要： There is provided a frequency synthesizer capable of improving phase noise. A sinusoidal signal with a frequency set by a frequency setting part is output as a digital signal from a set signal output part, and the digital signal is D/A-converted. A difference between a sinusoidal signal with a frequency corresponding to an output frequency of a voltage controlled oscillating part and a sinusoidal signal output from a D/A converting part is amplified by a differential amplifier, and an amplified signal is input via an A/D converting part to a means for extracting a phase difference between the aforesaid sinusoidal signals. A voltage corresponding to a signal being the result of integration of the phase difference is input as a control voltage to the voltage controlled oscillating part. Then, a gain of the differential amplifier is set larger than a maximum value of phase noise degradation of the A/D converting part, whereby the phase noise degradation of the A/D converting part is cancelled.
摘要翻译：提供了能够改善相位噪声的频率合成器。由频率设定部设定的频率的正弦信号作为来自设定信号输出部的数字信号输出，数字信号进行D / A转换。具有对应于压控振荡部分的输出频率的频率的正弦信号与从D / A转换部分输出的正弦信号之间的差异由差分放大器放大，放大的信号通过A / D 将部分转换成用于提取上述正弦信号之间的相位差的装置。将作为相位差积分的结果的信号对应的电压作为控制电压输入到受电压控制的振荡部。然后，将差分放大器的增益设定为大于A / D转换部分的相位噪声劣化的最大值，从而消除A / D转换部分的相位噪声劣化。

5. 发明申请

US20110074475A1 Frequency synthesizer 失效
标题翻译：频率合成器
公开(公告)号：US20110074475A1
公开(公告)日：2011-03-31
申请号：US12807982
申请日：2010-09-16
申请人： Kazuo Akaike , Nobuo Tsukamoto , Tsukasa Kobata
发明人： Kazuo Akaike , Nobuo Tsukamoto , Tsukasa Kobata
IPC分类号： H03L7/06
CPC分类号： H03L7/185 , H03L7/085 , H03L7/093
摘要： There is provided a frequency synthesizer capable of improving phase noise. A sinusoidal signal with a frequency set by a frequency setting part is output as a digital signal from a set signal output part, and the digital signal is D/A-converted. A difference between a sinusoidal signal with a frequency corresponding to an output frequency of a voltage controlled oscillating part and a sinusoidal signal output from a D/A converting part is amplified by a differential amplifier, and an amplified signal is input via an A/D converting part to a means for extracting a phase difference between the aforesaid sinusoidal signals. A voltage corresponding to a signal being the result of integration of the phase difference is input as a control voltage to the voltage controlled oscillating part. Then, a gain of the differential amplifier is set larger than a maximum value of phase noise degradation of the A/D converting part, whereby the phase noise degradation of the A/D converting part is cancelled.
摘要翻译：提供了能够改善相位噪声的频率合成器。由频率设定部设定的频率的正弦信号作为来自设定信号输出部的数字信号输出，数字信号进行D / A转换。具有对应于压控振荡部分的输出频率的频率的正弦信号与从D / A转换部分输出的正弦信号之间的差异由差分放大器放大，放大的信号通过A / D 将部分转换成用于提取上述正弦信号之间的相位差的装置。将作为相位差积分的结果的信号对应的电压作为控制电压输入到受电压控制的振荡部。然后，将差分放大器的增益设定为大于A / D转换部分的相位噪声劣化的最大值，从而消除A / D转换部分的相位噪声劣化。

6. 发明授权

US07899633B2 Sensing apparatus 有权
标题翻译：传感装置
公开(公告)号：US07899633B2
公开(公告)日：2011-03-01
申请号：US12154941
申请日：2008-05-28
申请人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
发明人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
IPC分类号： G01N23/00
CPC分类号： G01N11/16 , G01G3/13 , G01N29/036 , G01N29/4472 , G01N2291/0256 , G01N2291/02809
摘要： An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high degree of precision. As a specific means for solving the problem, a frequency signal from a crystal oscillator is sampled using a frequency signal from a reference clock generating part, the sampling value is outputted in a digital signal, quadrature detection is conducted with the digital signal for a frequency signal corresponding to the output signal, the rotational vector rotating at a frequency corresponding to the difference between the frequency of the frequency signal and the frequency of a sinusoidal wave used for the quadrature detection is taken out, and the variation of the frequency is detected by detecting the velocity of the rotational vector based on the respective sampling values. In addition to that, the measurement range of the variation of frequency can be widened by multiplying the above-described rotational vector by the reversely rotational vector corresponding to the velocity of the rotational vector.
摘要翻译：本发明的目的是提供一种能够以高精度立即检测诸如环境污染物等非常少的物质的感测装置。作为解决该问题的具体手段，使用来自基准时钟生成部的频率信号对来自晶体振荡器的频率信号进行采样，以数字信号输出采样值，利用数字信号进行频率正交检波对应于输出信号的信号，取出以与频率信号的频率和用于正交检测的正弦波的频率之间的差相对应的频率旋转的旋转矢量，并且频率的变化由基于相应的采样值来检测旋转矢量的速度。除此之外，通过将上述旋转矢量乘以与旋转矢量的速度对应的反向旋转矢量，可以扩大频率变化的测量范围。

7. 发明申请

US20090055112A1 Sensing apparatus 有权
标题翻译：传感装置
公开(公告)号：US20090055112A1
公开(公告)日：2009-02-26
申请号：US12154941
申请日：2008-05-28
申请人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
发明人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
IPC分类号： G01R23/00
CPC分类号： G01N11/16 , G01G3/13 , G01N29/036 , G01N29/4472 , G01N2291/0256 , G01N2291/02809
摘要： An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high degree of precision. As a specific means for solving the problem, a frequency signal from a crystal oscillator is sampled using a frequency signal from a reference clock generating part, the sampling value is outputted in a digital signal, quadrature detection is conducted with the digital signal for a frequency signal corresponding to the output signal, the rotational vector rotating at a frequency corresponding to the difference between the frequency of the frequency signal and the frequency of a sinusoidal wave used for the quadrature detection is taken out, and the variation of the frequency is detected by detecting the velocity of the rotational vector based on the respective sampling values. In addition to that, the measurement range of the variation of frequency can be widened by multiplying the above-described rotational vector by the reversely rotational vector corresponding to the velocity of the rotational vector.
摘要翻译：本发明的目的是提供一种能够以高精度立即检测诸如环境污染物等非常少的物质的感测装置。作为解决该问题的具体手段，使用来自基准时钟生成部的频率信号对来自晶体振荡器的频率信号进行采样，以数字信号输出采样值，利用数字信号进行频率正交检波对应于输出信号的信号，取出以与频率信号的频率和用于正交检测的正弦波的频率之间的差相对应的频率旋转的旋转矢量，并且频率的变化由基于相应的采样值来检测旋转矢量的速度。除此之外，通过将上述旋转矢量乘以与旋转矢量的速度对应的反向旋转矢量，可以扩大频率变化的测量范围。

8. 发明授权

US07398163B2 Sensing apparatus 有权
标题翻译：传感装置
公开(公告)号：US07398163B2
公开(公告)日：2008-07-08
申请号：US11659764
申请日：2005-08-11
申请人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
发明人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
IPC分类号： G01N31/00
CPC分类号： G01N11/16 , G01G3/13 , G01N29/036 , G01N29/4472 , G01N2291/0256 , G01N2291/02809
摘要： An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high degree of precision. As a specific means for solving the problem, a frequency signal from a crystal oscillator is sampled using a frequency signal from a reference clock generating part, the sampling value is outputted in a digital signal, quadrature detection is conducted with the digital signal for a frequency signal corresponding to the output signal, the rotational vector rotating at a frequency corresponding to the difference between the frequency of the frequency signal and the frequency of a sinusoidal wave used for the quadrature detection is taken out, and the variation of the frequency is detected by detecting the velocity of the rotational vector based on the respective sampling values. In addition to that, the measurement range of the variation of frequency can be widened by multiplying the above-described rotational vector by the reversely rotational vector corresponding to the velocity of the rotational vector.
摘要翻译：本发明的目的是提供一种能够以高精度立即检测诸如环境污染物等非常少的物质的感测装置。作为解决该问题的具体手段，使用来自基准时钟生成部的频率信号对来自晶体振荡器的频率信号进行采样，以数字信号输出采样值，利用数字信号进行频率正交检波对应于输出信号的信号，取出以与频率信号的频率和用于正交检测的正弦波的频率之间的差相对应的频率旋转的旋转矢量，并且频率的变化由基于相应的采样值来检测旋转矢量的速度。除此之外，通过将上述旋转矢量乘以与旋转矢量的速度对应的反向旋转矢量，可以扩大频率变化的测量范围。

9. 发明申请

US20070251322A1 Sensing Apparatus 有权
标题翻译：感应器
公开(公告)号：US20070251322A1
公开(公告)日：2007-11-01
申请号：US11659764
申请日：2005-08-11
申请人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
发明人： Nobuo Tsukamoto , Kazuo Akaike , Tsukasa Kobata
IPC分类号： G01H13/00
CPC分类号： G01N11/16 , G01G3/13 , G01N29/036 , G01N29/4472 , G01N2291/0256 , G01N2291/02809
摘要： An object of the present invention is to provide a sensing instrument capable to detect a substance existing in a very small quantity, such as environmental pollutants, instantly with a high degree of precision. As a specific means for solving the problem, a frequency signal from a crystal oscillator is sampled using a frequency signal from a reference clock generating part, the sampling value is outputted in a digital signal, quadrature detection is conducted with the digital signal for a frequency signal corresponding to the output signal, the rotational vector rotating at a frequency corresponding to the difference between the frequency of the frequency signal and the frequency of a sinusoidal wave used for the quadrature detection is taken out, and the variation of the frequency is detected by detecting the velocity of the rotational vector based on the respective sampling values. In addition to that, the measurement range of the variation of frequency can be widened by multiplying the above-described rotational vector by the reversely rotational vector corresponding to the velocity of the rotational vector.
摘要翻译：本发明的目的是提供一种能够以高精度立即检测诸如环境污染物等非常少的物质的感测装置。作为解决该问题的具体手段，使用来自基准时钟生成部的频率信号对来自晶体振荡器的频率信号进行采样，以数字信号输出采样值，利用数字信号进行频率正交检波对应于输出信号的信号，取出以与频率信号的频率和用于正交检测的正弦波的频率之间的差相对应的频率旋转的旋转矢量，并且频率的变化由基于相应的采样值来检测旋转矢量的速度。除此之外，通过将上述旋转矢量乘以与旋转矢量的速度对应的反向旋转矢量，可以扩大频率变化的测量范围。

10. 发明申请

US20100321068A1 Frequency Synthesizer 有权
标题翻译：频率合成器
公开(公告)号：US20100321068A1
公开(公告)日：2010-12-23
申请号：US12803294
申请日：2010-06-23
申请人： Tsukasa Kobata , Tsuyoshi Shiobara , Kozuo Akaike , Nobuo Tsukamoto
发明人： Tsukasa Kobata , Tsuyoshi Shiobara , Kozuo Akaike , Nobuo Tsukamoto
IPC分类号： H03B21/00
CPC分类号： H03L7/18 , H03L7/085 , H03L7/091 , H03L7/10 , H03L7/185 , H03L7/187 , H03L2207/06 , H03L2207/12
摘要： An object of the present invention provides a frequency synthesizer having a broad frequency entraining range which can finely set a frequency over a broad band by a novel principle.As s specific solving means, a sinusoidal signal of an output frequency of a voltage-controlled oscillator is subjected to orthogonal detection, a vector rotating at the differential frequency (speed) between the output frequency and the frequency of the frequency signal used for the detection is created, and the frequency of a vector when the output frequency of the voltage-controlled oscillator is equal to a set value is calculated in advance. The voltage signal corresponding to the difference between the frequency of the vector and the calculated frequency is fed back to the voltage-controlled oscillator when the voltage-controlled oscillator is driven, and PLL is formed so that the difference is equal to zero. Accordingly, the output frequency of the voltage-controlled oscillator is adjusted to the set frequency when PLL is locked. After the difference between both the frequencies is increased after PLL is locked, the set value is integrated by the integrating circuit portion and added to the control voltage.
摘要翻译：本发明的目的是提供一种频率合成器，其具有宽的频率夹带范围，可通过新的原理在宽带上精细地设定频率。作为具体的解决方案，对压控振荡器的输出频率的正弦信号进行正交检测，以用于检测的频率信号的输出频率和频率之间的差分频率（速度）旋转的矢量并且预先计算当压控振荡器的输出频率等于设定值时的矢量频率。当驱动压控振荡器时，与矢量频率和计算出的频率之间的差值相对应的电压信号被反馈到压控振荡器，并且形成PLL，使得差值等于零。因此，当PLL被锁定时，压控振荡器的输出频率被调整到设定频率。在PLL被锁定之后两个频率之间的差异增加之后，设定值被积分电路部分积分并加到控制电压上。

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