公开(公告)号：US08466716B2

公开(公告)日：2013-06-18

申请号：US12742793

申请日：2008-11-11

申请人： Akihiko Namba ,  Takeshi Fujii ,  Yasunobu Tsukio

发明人： Akihiko Namba ,  Takeshi Fujii ,  Yasunobu Tsukio

IPC分类号： H03B21/00

CPC分类号： H03L1/027 ,  H03L7/1976

摘要： A synthesizer including an oscillator for outputting an oscillation signal based on an output signal from a comparator, a frequency divider for dividing a frequency of an output signal from the oscillator based on control from a controller, and a temperature sensor for detecting an error between a preset frequency and a frequency based on a reference oscillation signal. The comparator compares an output signal from the frequency divider with an output signal from a MEMS oscillator and outputs a signal indicating the comparison result to the oscillator. The controller changes the frequency division ratio of the frequency divider based on an output signal from the temperature sensor and changes the frequency division ratio in a state in which the frequency division ratio is kept at the past value. Thus, phase noise deterioration in the synthesizer can be suppressed.

摘要翻译： 一种合成器，包括：振荡器，用于基于来自比较器的输出信号输出振荡信号;分频器，用于根据来自控制器的控制来分频来自振荡器的输出信号的频率;以及温度传感器，用于检测 预设频率和基于参考振荡信号的频率。 比较器将来自分频器的输出信号与来自MEMS振荡器的输出信号进行比较，并向振荡器输出指示比较结果的信号。 控制器基于来自温度传感器的输出信号来改变分频器的分频比，并且在分频比保持在过去值的状态下改变分频比。 因此，可以抑制合成器中的相位噪声恶化。

公开(公告)号：US20100271088A1

公开(公告)日：2010-10-28

申请号：US12742793

申请日：2008-11-11

申请人： Akihiko Namba ,  Takeshi Fujii ,  Yasunobu Tsukio

发明人： Akihiko Namba ,  Takeshi Fujii ,  Yasunobu Tsukio

IPC分类号： H03L7/08

CPC分类号： H03L1/027 ,  H03L7/1976

摘要： A synthesizer including an oscillator for outputting an oscillation signal based on an output signal from a comparator, a frequency divider for dividing a frequency of an output signal from the oscillator based on control from a controller, and a temperature sensor for detecting an error between a preset frequency and a frequency based on a reference oscillation signal. The comparator compares an output signal from the frequency divider with an output signal from a MEMS oscillator and outputs a signal indicating the comparison result to the oscillator. The controller changes the frequency division ratio of the frequency divider based on an output signal from the temperature sensor and changes the frequency division ratio in a state in which the frequency division ratio is kept at the past value. Thus, phase noise deterioration in the synthesizer can be suppressed.

摘要翻译： 一种合成器，包括：振荡器，用于基于来自比较器的输出信号输出振荡信号;分频器，用于根据来自控制器的控制来分频来自振荡器的输出信号的频率;以及温度传感器，用于检测 预设频率和基于参考振荡信号的频率。 比较器将来自分频器的输出信号与来自MEMS振荡器的输出信号进行比较，并向振荡器输出指示比较结果的信号。 控制器基于来自温度传感器的输出信号来改变分频器的分频比，并且在分频比保持在过去值的状态下改变分频比。 因此，可以抑制合成器中的相位噪声恶化。

公开(公告)号：US20110122973A1

公开(公告)日：2011-05-26

申请号：US12809126

申请日：2009-02-10

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Takeshi Fujii

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Takeshi Fujii

IPC分类号： H04L27/00

CPC分类号： H03L7/197 ,  H03L1/027

摘要： A frequency synthesizer receives a frequency compensation signal and a reference oscillation signal from an outside, and outputs first and second signals to an outside. The reference oscillation signal has a varying frequency. The frequency synthesizer includes an oscillator for generating the first signal based on the reference oscillation signal, and a frequency divider/multiplier for outputting the second signal by frequency-dividing or frequency-multiplying the first signal. The varying frequency of the first signal is compensated by the frequency compensation signal. This frequency synthesizer suppresses frequency variations of the first and second signals even if the reference oscillation signal has a large frequency variation.

摘要翻译： 频率合成器从外部接收频率补偿信号和参考振荡信号，并将第一和第二信号输出到外部。 参考振荡信号具有变化的频率。 频率合成器包括用于基于参考振荡信号产生第一信号的振荡器和用于通过对第一信号进行分频或倍频来输出第二信号的分频器/乘法器。 第一信号的变化频率由频率补偿信号补偿。 即使参考振荡信号具有较大的频率变化，该频率合成器抑制第一和第二信号的频率变化。

公开(公告)号：US08384449B2

公开(公告)日：2013-02-26

申请号：US12866951

申请日：2009-02-10

申请人： Akihiko Namba ,  Yasunobu Tsukio ,  Susumu Fukushima

发明人： Akihiko Namba ,  Yasunobu Tsukio ,  Susumu Fukushima

IPC分类号： H03L7/06

CPC分类号： H03L7/1976 ,  H03L1/026 ,  H03L1/027 ,  H03L7/197

摘要： A synthesizer of the present invention includes a synthesizer section that generates an oscillation signal based on a reference oscillation signal output from a MEMS resonator and inputs the oscillation signal to a frequency converter; and a control section that adjusts a frequency of the oscillation signal output from the synthesizer section. In frequency adjustment by the control section, when a frequency adjustment unit of the synthesizer section is defined as predetermined value F in which quality of an output signal from the frequency converter is a quality limit threshold value, frequency adjustment unit Δfcont of the synthesizer section is within predetermined value F.

摘要翻译： 本发明的合成器包括：合成器部，其根据从MEMS谐振器输出的基准振荡信号生成振荡信号，并将振荡信号输入到变频器; 以及控制部，调整从合成部输出的振荡信号的频率。 在由控制部进行的频率调整中，当合成部的频率调整部被定义为来自变频器的输出信号的质量为品质限制阈值的规定值F时，合成器的频率调整部＆Dgr; fcont 截面在预定值F内。

公开(公告)号：US20100201412A1

公开(公告)日：2010-08-12

申请号：US12671340

申请日：2008-07-28

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03L7/08

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US08390334B2

公开(公告)日：2013-03-05

申请号：US13057055

申请日：2009-08-26

申请人： Yasunobu Tsukio ,  Akihiko Namba

发明人： Yasunobu Tsukio ,  Akihiko Namba

IPC分类号： H03B21/00

CPC分类号： H03L7/197 ,  H03J7/065 ,  H03L1/027

摘要： A synthesizer includes: a synthesizer unit that outputs an oscillation signal based on a reference oscillation signal; a temperature detecting unit that detects a temperature; a time variation detecting unit that detects a time variation in frequency of the reference oscillation signal based on a result of temperature detection by the temperature detecting unit; and a control unit that adjusts a frequency of the oscillation signal outputted from the synthesizer unit based on a result of detection by the time variation detecting unit. With such a configuration, frequency compensation control is performed on a transducer having a large temperature coefficient.

摘要翻译： 合成器包括：合成器单元，其基于参考振荡信号输出振荡信号; 温度检测单元，其检测温度; 时间变化检测单元，其基于温度检测单元的温度检测结果来检测基准振荡信号的频率的时间变化; 以及控制单元，其基于时间变化检测单元的检测结果调整从合成器单元输出的振荡信号的频率。 通过这样的结构，对具有大的温度系数的换能器进行频率补偿控制。

公开(公告)号：US08183915B2

公开(公告)日：2012-05-22

申请号：US13151777

申请日：2011-06-02

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03D3/28

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US08040178B2

公开(公告)日：2011-10-18

申请号：US12671340

申请日：2008-07-28

申请人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

发明人： Yasunobu Tsukio ,  Akihiko Namba ,  Hiroaki Ozeki

IPC分类号： H03D3/28

CPC分类号： H03L7/183 ,  H03L1/022

摘要： An oscillator unit is configured such that a frequency adjustment unit of a synthesizer used by a controller is smaller than a frequency variation tracking capability of a demodulator connected to an output side of a frequency converter. This structure successfully combines the temperature compensation control of an oscillator unit and the receiving process of a high-frequency receiving device. Accordingly, an oscillator unit with large temperature coefficient is applicable to high-frequency receiving devices.

摘要翻译： 振荡器单元被配置为使得控制器使用的合成器的频率调节单元小于连接到变频器的输出侧的解调器的频率变化跟踪能力。 该结构成功地组合了振荡器单元的温度补偿控制和高频接收装置的接收处理。 因此，具有高温度系数的振荡器单元适用于高频接收装置。

公开(公告)号：US20110133798A1

公开(公告)日：2011-06-09

申请号：US13057055

申请日：2009-08-26

申请人： Yasunobu Tsukio ,  Akihiko Namba

发明人： Yasunobu Tsukio ,  Akihiko Namba

IPC分类号： H03L7/06

CPC分类号： H03L7/197 ,  H03J7/065 ,  H03L1/027

摘要： A synthesizer includes: a synthesizer unit that outputs an oscillation signal based on a reference oscillation signal; a temperature detecting unit that detects a temperature; a time variation detecting unit that detects a time variation in frequency of the reference oscillation signal based on a result of temperature detection by the temperature detecting unit; and a control unit that adjusts a frequency of the oscillation signal outputted from the synthesizer unit based on a result of detection by the time variation detecting unit. With such a configuration, frequency compensation control is performed on a transducer having a large temperature coefficient.

摘要翻译： 合成器包括：合成器单元，其基于参考振荡信号输出振荡信号; 温度检测单元，其检测温度; 时间变化检测单元，其基于温度检测单元的温度检测结果来检测基准振荡信号的频率的时间变化; 以及控制单元，其基于时间变化检测单元的检测结果调整从合成器单元输出的振荡信号的频率。 通过这样的结构，对具有大的温度系数的换能器进行频率补偿控制。

公开(公告)号：US20100315138A1

公开(公告)日：2010-12-16

申请号：US12866951

申请日：2009-02-10

申请人： Akihiko Namba ,  Yasunobu Tsukio ,  Susumu Fukushima

发明人： Akihiko Namba ,  Yasunobu Tsukio ,  Susumu Fukushima

IPC分类号： H03L7/08

CPC分类号： H03L7/1976 ,  H03L1/026 ,  H03L1/027 ,  H03L7/197

摘要： A synthesizer of the present invention includes a synthesizer section that generates an oscillation signal based on a reference oscillation signal output from a MEMS resonator and inputs the oscillation signal to a frequency converter; and a control section that adjusts a frequency of the oscillation signal output from the synthesizer section. In frequency adjustment by the control section, when a frequency adjustment unit of the synthesizer section is defined as predetermined value F in which quality of an output signal from the frequency converter is a quality limit threshold value, frequency adjustment unit Δfcont of the synthesizer section is within predetermined value F.

摘要翻译： 本发明的合成器包括：合成器部，其根据从MEMS谐振器输出的基准振荡信号生成振荡信号，并将振荡信号输入到变频器; 以及控制部，调整从合成部输出的振荡信号的频率。 在由控制部进行的频率调整中，当合成部的频率调整部被定义为来自变频器的输出信号的质量为品质限制阈值的规定值F时，合成器的频率调整部＆Dgr; fcont 截面在预定值F内。