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1.发明申请公开(公告)号：US20180239307A1
公开(公告)日：2018-08-23
申请号：US15901044
申请日：2018-02-21
发明人： Akio TSUTSUMI , Takashi KURASHINA , Katsuhiko MAKI
CPC分类号： G04F10/005 , A61B8/5207 , B60R16/02 , G01S7/4865 , G01S15/14 , G01S17/936 , H03B5/32 , H03B5/362 , H03B5/368 , H03L7/087 , H03L7/099 , H03L7/23 , H03L2207/50
摘要： A circuit device includes a first PLL circuit to which a first clock signal having a first clock frequency generated using a first resonator and a reference clock signal are input, and which performs phase synchronization between the first clock signal and the reference clock signal, a second PLL circuit to which a second clock signal generated using a second resonator and having a second clock frequency different from the first clock frequency and the reference clock signal are input, and which performs phase synchronization between the second clock signal and the reference clock signal, and a time-to-digital conversion circuit adapted to convert time into a digital value using the first clock signal and the second clock signal.
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2.发明申请公开(公告)号：US20170194908A1
公开(公告)日：2017-07-06
申请号：US15369490
申请日：2016-12-05
CPC分类号： H03B5/32 , H03B5/1212 , H03B5/326 , H03B5/368 , H03B2200/0012 , H03B2200/009
摘要： Methods and systems are provided for generating balanced oscillations in oscillators. An oscillator comprises a resonator input configured to receive, from an electro-mechanical resonator, a resonator signal; and an oscillator core comprising a first and a second complementary inverters forming a first loop and a second loop with the resonator input, respectively. The inverters are programmable to contribute to the resonator signal a first gain or a second gain to generate balanced oscillations in the oscillator, with the first gain being less than an upper threshold gain required to generate parasitic-mode oscillations when starting balanced oscillations, and the second gain being equal to or greater than a lower threshold, gain required to generate resonator-mode oscillations. Each inverter is configured to regulate gain contributed by the inventor based on regulating amount of power received to control the gain.
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公开(公告)号：US20170179961A1
公开(公告)日：2017-06-22
申请号：US15378358
申请日：2016-12-14
发明人： Yosuke Itasaka
CPC分类号： H03L1/04 , H03B5/24 , H03B5/32 , H03B5/362 , H03B5/368 , H03B2200/0038 , H03B2201/0208 , H03L1/028
摘要： An oscillator includes: an oscillation stage circuit that is connected between a first electrode and a second electrode of a resonator and performs an oscillation operation; a variable capacitance element that is connected to the first or second electrode of the resonator and adjusts an oscillation frequency; a bandgap reference circuit that generates a reference voltage having magnitude, which changes depending on the temperature, by using a resistor inserted in a current path through which a current having magnitude, which changes depending on the temperature flows; and a bias current generating circuit that generates a bias current of the oscillation stage circuit based on the reference voltage, and that, thereby, reduces a change in the oscillation frequency due to the temperature dependence of the impedance of the resonator or the temperature dependence of the sensitivity of the variable capacitance element.
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公开(公告)号：US09634672B2
公开(公告)日：2017-04-25
申请号：US14993733
申请日：2016-01-12
发明人： Takehiro Yamamoto
摘要： A semiconductor circuit device includes an oscillation circuit, an output circuit that receives a signal output from an oscillation circuit and outputs an oscillation signal, a temperature sensing element, a characteristic adjustment circuit that adjusts characteristics of the oscillation circuit on the basis of a signal output from the temperature sensing element, and a first connection terminal that is electrically connected to the output circuit and via which the oscillation signal is output, in which a distance between the output circuit and the first connection terminal is shorter than a distance between the temperature sensing element and the first connection terminal in a plan view.
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公开(公告)号：US09306578B2
公开(公告)日：2016-04-05
申请号：US14571304
申请日：2014-12-16
发明人： Hiroki Kimura , Naoki Onishi
摘要： An oscillator includes an oscillator circuit, a crystal filter, a package portion, and a heating portion. The oscillator circuit is configured to output an oscillation signal. The crystal filter has a frequency characteristic where an attenuation at a detuned frequency is larger than an attenuation at an oscillation frequency of the oscillation signal. The detuned frequency is a frequency different from the oscillation frequency. The package portion covers a crystal blank of the oscillator circuit and a crystal blank of the crystal filter. The heating portion is configured to heat the crystal blank of the oscillator circuit and the crystal blank of the crystal filter using a resistor disposed between: a wiring board to which the package portion is secured, and the package portion.
摘要翻译： 振荡器包括振荡电路，晶体滤波器，封装部分和加热部分。 振荡电路被配置为输出振荡信号。 晶体滤波器具有频率特性，其中失谐频率处的衰减大于振荡信号的振荡频率处的衰减。 失谐频率是与振荡频率不同的频率。 封装部分覆盖振荡器电路的晶体空白和晶体滤波器的晶体空白。 加热部构造为使用设置在封装部固定的布线基板与封装部之间的电阻来加热振荡电路的晶体坯和晶体滤波器的晶体坯。
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公开(公告)号：US09263989B2
公开(公告)日：2016-02-16
申请号：US14315295
申请日：2014-06-25
发明人： Takashi Nakaoka , Hiroshi Hoshigami
IPC分类号： H03B5/36
CPC分类号： H03B5/368
摘要： A differential oscillator includes a resonator, a differential amplifier circuit, and a filter. The filter is disposed in parallel to the resonator and the differential amplifier circuit. The filter has a first resonance frequency in the first resonance mode and a second resonance frequency in the second resonance mode. The filter has a lower impedance at one frequency in one of the first resonance frequency and the second resonance frequency than an impedance at one frequency at another in the first resonance frequency and the second resonance frequency. The differential oscillator has a negative resistance at a frequency at which the impedance of the filter is higher while the differential oscillator does not have a negative resistance at a frequency at which the impedance of the filter is lower among the first resonance frequency and the second resonance frequency.
摘要翻译： 差分振荡器包括谐振器，差分放大器电路和滤波器。 滤波器与谐振器和差分放大器电路并联设置。 滤波器在第一谐振模式中具有第一谐振频率，在第二谐振模式中具有第二谐振频率。 滤波器在第一谐振频率和第二谐振频率中的一个频率下的一个频率处的阻抗比在第一谐振频率和第二谐振频率中的另一频率处的阻抗低。 差分振荡器在滤波器的阻抗较高的频率处具有负电阻，而差分振荡器在第一谐振频率和第二谐振中的滤波器的阻抗较低的频率处不具有负电阻 频率。
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公开(公告)号：US20150229270A1
公开(公告)日：2015-08-13
申请号：US14619566
申请日：2015-02-11
发明人： Gerhard KAHMEN
摘要： The invention, according to various embodiments described herein, relates to a phase-locked loop with a phase detector and a controlled oscillator. The controlled oscillator provides a varactor. The varactor is embodied using MEMS technology. According to the invention, the control bandwidth of the phase-locked loop is larger than the mechanical resonant frequency of the varactor.
摘要翻译： 根据本文所描述的各种实施例的本发明涉及一种具有相位检测器和受控振荡器的锁相环。 受控振荡器提供变容二极管。 变容二极管采用MEMS技术实现。 根据本发明，锁相环的控制带宽大于变容二极管的机械谐振频率。
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8.发明授权Oscillation circuit, semiconductor integrated circuit device, vibrating device, electronic apparatus, and moving object 有权振荡电路，半导体集成电路器件，振动器件，电子设备和移动物体公开(公告)号：US09065383B2
公开(公告)日：2015-06-23
申请号：US14033746
申请日：2013-09-23
摘要： An oscillation circuit includes a first variable capacitance part which includes a first variable capacitance element whose capacitance is controlled on the basis of a potential difference between a first control voltage and a first reference voltage, and is connected to the oscillation circuit, a second variable capacitance part which includes a second variable capacitance element whose capacitance is controlled on the basis of a potential difference between a first control voltage and a second reference voltage, and is connected to the oscillation circuit. If composite capacitance in the first variable capacitance part excluding the first variable capacitance element is first composite capacitance, composite capacitance in the second variable capacitance part excluding the second variable capacitance element is second composite capacitance, and if the second composite capacitance is greater than the first composite capacitance, the second variable capacitance element having capacitance greater than the first variable capacitance element is used.
摘要翻译： 振荡电路包括：第一可变电容部，其包括基于第一控制电压和第一参考电压之间的电位差来控制电容的第一可变电容元件，并连接到振荡电路，第二可变电容 部分包括基于第一控制电压和第二参考电压之间的电位差来控制电容的第二可变电容元件，并连接到振荡电路。 如果除了第一可变电容元件之外的第一可变电容部件中的复合电容是第一复合电容，则除第二可变电容元件之外的第二可变电容部件中的复合电容是第二复合电容，并且如果第二复合电容大于第一复合电容 使用具有大于第一可变电容元件的电容的第二可变电容元件。
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9.发明申请OSCILLATION CIRCUIT, OSCILLATOR, ELECTRONIC DEVICE, MOBILE OBJECT, AND OSCILLATOR MANUFACTURING METHOD 有权振荡电路，振荡器，电子设备，移动对象和振荡器制造方法公开(公告)号：US20150123743A1
公开(公告)日：2015-05-07
申请号：US14533477
申请日：2014-11-05
发明人： Atsushi KIYOHARA
摘要： An oscillation circuit includes a circuit for frequency adjustment, a variable capacity control circuit in which a voltage to be output therefrom is controlled with either a voltage which is input from a terminal T1 or a voltage other than the voltage which is input from the terminal T1, a circuit for oscillation which is provided with a varactor and to which a signal from the circuit for frequency adjustment and a signal from the variable capacity control circuit are input, and a three-terminal switch which outputs the voltage which is input from the terminal T1 to either the circuit for frequency adjustment or the variable capacity control circuit.
摘要翻译： 振荡电路包括用于频率调节的电路，其中从其输出的电压由从端子T1输入的电压或从端子T1输入的电压以外的电压来控制的可变容量控制电路 设置有变容二极管的振荡电路，并且输入来自用于频率调节的电路的信号和来自可变容量控制电路的信号;以及三端开关，其输出从端子输入的电压 T1到频率调节电路或可变容量控制电路。
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公开(公告)号：US20150028958A1
公开(公告)日：2015-01-29
申请号：US14315295
申请日：2014-06-25
发明人： TAKASHI NAKAOKA , HIROSHI HOSHIGAMI
CPC分类号： H03B5/368
摘要： A differential oscillator includes a resonator, a differential amplifier circuit, and a filter. The filter is disposed in parallel to the resonator and the differential amplifier circuit. The filter has a first resonance frequency in the first resonance mode and a second resonance frequency in the second resonance mode. The filter has a lower impedance at one frequency in one of the first resonance frequency and the second resonance frequency than an impedance at one frequency at another in the first resonance frequency and the second resonance frequency. The differential oscillator has a negative resistance at a frequency at which the impedance of the filter is higher while the differential oscillator does not have a negative resistance at a frequency at which the impedance of the filter is lower among the first resonance frequency and the second resonance frequency.
摘要翻译： 差分振荡器包括谐振器，差分放大器电路和滤波器。 滤波器与谐振器和差分放大器电路并联设置。 滤波器在第一谐振模式中具有第一谐振频率，在第二谐振模式中具有第二谐振频率。 滤波器在第一谐振频率和第二谐振频率中的一个频率下的一个频率处的阻抗比在第一谐振频率和第二谐振频率中的另一频率处的阻抗低。 差分振荡器在滤波器的阻抗较高的频率处具有负电阻，而差分振荡器在第一谐振频率和第二谐振中的滤波器的阻抗较低的频率处不具有负电阻 频率。
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