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公开(公告)号：US20210273643A1
公开(公告)日：2021-09-02
申请号：US17186129
申请日：2021-02-26
发明人： Akio TSUTSUMI , Ryo ICHIKAWA , Hisahiro ITO , Yasunari FURUYA
摘要： There is configured a charge pump circuit for outputting a phase difference current to a first node, the charge pump circuit including a first current source coupled between a high potential power supply node and the first node, a second current source coupled between a low potential power supply node and the first node, a first switch coupled between the first current source and the first node, a second switch coupled between the second current source and the first node, a third switch coupled between the first current source and a second node, a fourth switch coupled between the second current source and the second node, a third current source for supplying a negative offset current to the first node, and a push-type differential amplifier circuit an input side of which is coupled to the first node, and an output side of which is coupled to the second node.
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公开(公告)号：US20170346442A1
公开(公告)日：2017-11-30
申请号：US15593802
申请日：2017-05-12
摘要： An oscillator includes an external terminal, a resonator, and an oscillation circuit that oscillates the resonator. The oscillation circuit includes an amplification circuit and a current source that supplies a current to the amplification circuit, and the current is variably set according to a control signal input from the external terminal.
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3.发明申请公开(公告)号：US20140361845A1
公开(公告)日：2014-12-11
申请号：US14298350
申请日：2014-06-06
发明人： Hisahiro ITO
CPC分类号： H03B1/00 , H01G7/06 , Y02T10/7022 , Y10T29/49004
摘要： A variable capacitance circuit includes a plurality of variable capacitance elements (varicaps) each having the capacitance value controlled in accordance with the inter-terminal voltage applied between the terminals of the variable capacitance element and connected in parallel to each other, has the combined capacitance value of the plurality of variable capacitance elements variable taking a predetermined capacitance value as a base, sets the inter-terminal voltage of at least one of the plurality of variable capacitance elements to a first voltage as a variable voltage, and sets the inter-terminal voltage of the rest of the plurality of variable capacitance elements to a second voltage as a stationary voltage.
摘要翻译： 可变电容电路包括多个可变电容元件（变容片），每个可变电容元件具有根据施加在可变电容元件的端子之间并且彼此并联连接的端子间电压控制的电容值，具有组合的电容值 以可变电容值为基准的多个可变电容元件中的至少一个可变电容元件的端子间电压设定为第一电压为可变电压，并将端子间电压 的多个可变电容元件的其余部分作为固定电压的第二电压。
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公开(公告)号：US20200136558A1
公开(公告)日：2020-04-30
申请号：US16665865
申请日：2019-10-28
发明人： Hisahiro ITO
摘要： Provided is an oscillator including a resonator which includes a resonator element and a resonator element container accommodating the resonator element, an integrated circuit element which includes an inductor, and a nonconductive spacer member, in which the resonator and the integrated circuit element are stacked above each other, the resonator has a metal member, and the spacer member is provided between the resonator and the integrated circuit element.
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公开(公告)号：US20180269834A1
公开(公告)日：2018-09-20
申请号：US15914606
申请日：2018-03-07
发明人： Hisahiro ITO , Tetsuya OTSUKI , Mitsuaki SAWADA
CPC分类号： H03B5/32 , H01L24/32 , H01L24/45 , H01L24/48 , H01L24/49 , H01L2224/32014 , H01L2224/32225 , H01L2224/45124 , H01L2224/45144 , H01L2224/45147 , H01L2224/48091 , H01L2224/48111 , H01L2224/48195 , H01L2224/48227 , H01L2224/48245 , H01L2224/49171 , H01L2224/73265 , H01L2224/83424 , H01L2224/83439 , H01L2224/83444 , H01L2224/83447 , H01L2224/83455 , H01L2224/83464 , H01L2224/83466 , H01L2224/83469 , H01L2224/83478 , H01L2224/83484 , H01L2924/19107 , H01L2924/3025 , H03B1/02 , H03H9/0514 , H03H9/0542 , H03H9/10 , H03H9/1021 , H03H9/19 , H05K2203/049 , H01L2924/00014 , H01L2924/00
摘要： A vibrator device has a base that has a first terminal, a circuit element that is disposed on the base and has a second terminal, a vibrator that includes a vibrator element and a vibrator element package, and is positioned between the first terminal and the second terminal in plan view of the base, a wiring unit that is disposed on the vibrator, a first wire that electrically connects the first terminal and the wiring unit together, and a second wire that electrically connects the wiring unit and the second terminal together.
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公开(公告)号：US20180248517A1
公开(公告)日：2018-08-30
申请号：US15902476
申请日：2018-02-22
发明人： Hisahiro ITO
IPC分类号： H03B5/36 , H03H9/25 , H01L41/053
摘要： An oscillator includes: an external terminal, a resonator, and an oscillation circuit that oscillates the resonator, in which the oscillation circuit includes an amplification circuit and a current source which supplies a current to the amplification circuit, in which the current is set according to a first control signal which is input from the external terminal and a drive level of the resonator is changed according to the setting of the current.
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7.发明申请公开(公告)号：US20150091664A1
公开(公告)日：2015-04-02
申请号：US14497854
申请日：2014-09-26
发明人： Hisahiro ITO
CPC分类号： H03B5/366 , H03J2200/10
摘要： A circuit device includes an oscillation circuit that includes a variable capacitance circuit and performs an operation of oscillating an oscillation element; and a control unit. The variable capacitance circuit includes a plurality of variable capacitance elements. When an operation mode is a first operation mode, the control unit supplies applied voltages in which at least one thereof is a variable voltage to the plurality of variable capacitance elements, and when the operation mode is a second operation mode, the control unit supplies applied voltages which are all fixed voltages to the plurality of variable capacitance elements.
摘要翻译： 电路装置包括：振荡电路，包括可变电容电路，并进行摆动振荡元件的动作; 和控制单元。 可变电容电路包括多个可变电容元件。 当操作模式是第一操作模式时，控制单元将至少其中一个作为可变电压的施加电压提供给多个可变电容元件，并且当操作模式是第二操作模式时，控制单元提供应用 对多个可变电容元件都是固定电压的电压。
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公开(公告)号：US20160329901A1
公开(公告)日：2016-11-10
申请号：US15135901
申请日：2016-04-22
发明人： Hisahiro ITO
CPC分类号： H03L1/028 , H03L7/1974 , H04B1/04
摘要： A radio transmission apparatus includes a radio transmission IC including a vibration element and a fractional N-PLL circuit and a power amplifier generating a radio transmission signal and a control device that controls the radio transmission IC, and a temperature detection element. The control device controls the fractional N-PLL circuit based on temperature information obtained from the temperature detection element such that a frequency of the radio transmission signal is temperature-compensated.
摘要翻译： 无线传输装置包括：包括振动元件和分数N-PLL电路的无线电传输IC和产生无线电传输信号的功率放大器和控制无线电传输IC的控制装置和温度检测元件。 控制装置基于从温度检测元件获得的温度信息来控制分数N-PLL电路，使得无线电发送信号的频率被温度补偿。
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9.发明申请OSCILLATION CIRCUIT, OSCILLATOR, FRACTIONAL N-PLL CIRCUIT, ELECTRONIC APPARATUS, MOVING OBJECT, AND DETERMINATION METHOD OF REFERENCE FREQUENCY OF FRACTIONAL N-PLL CIRCUIT 有权振荡电路，振荡器，部分N-PLL电路，电子设备，移动对象和分数N-PLL电路的参考频率的确定方法公开(公告)号：US20150214961A1
公开(公告)日：2015-07-30
申请号：US14607343
申请日：2015-01-28
CPC分类号： H03L7/1976
摘要： In order to configure an oscillation circuit, an oscillator, a fractional N-PLL circuit, and the like that can output a plurality of frequencies, while decreasing an influence of an integer value boundary spurious at one reference frequency, the oscillation circuit includes a circuit for oscillation that oscillates a resonator, a fractional N-PLL circuit to which a signal from the circuit for oscillation is input, and a non-volatile memory that stores a plurality of division ratios, which can be selected from outside, of the fractional N-PLL circuit. A fractional portion of at least two of the plurality of division ratios is equal to or higher than 0.05 and is equal to or lower than 0.95.
摘要翻译： 为了配置可以输出多个频率的振荡电路，振荡器，分数N-PLL电路等，同时减小在一个基准频率处的整数值边界的影响，振荡电路包括电路 对于振荡谐振器的振荡，输入来自用于振荡的电路的信号的分数N-PLL电路，以及存储可从外部选择的分数N的多个分频比的非易失性存储器 -PLL电路。 多个分割比中的至少两个的分数部分等于或大于0.05并且等于或小于0.95。
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10.发明申请公开(公告)号：US20150145611A1
公开(公告)日：2015-05-28
申请号：US14553079
申请日：2014-11-25
IPC分类号： H03B5/36
CPC分类号： H03B5/366 , H03B2200/004 , H03B2200/0062 , H03B2201/0208
摘要： An oscillator circuit includes an oscillating amplifier circuit to which an oscillator element is connected, and which generates an oscillation signal, and a plurality of MOS type variable capacitance elements each having two terminals, one of which is electrically connected to the oscillating amplifier circuit, the MOS type variable capacitance elements have respective threshold voltages different from each other, a control voltage is applied to one of the terminals of each of the MOS type variable capacitance elements, and a reference voltage is applied to the other of the terminals of each of the MOS type variable capacitance elements. It is also possible for the MOS type variable capacitance elements to be different from each other in dope amount of impurities to a semiconductor layer below a gate electrode.
摘要翻译： 振荡器电路包括振荡器元件连接并产生振荡信号的振荡放大器电路，以及多个MOS型可变电容元件，每个具有两个端子，其中一个端子电连接到振荡放大器电路， MOS型可变电容元件具有彼此不同的阈值电压，对每个MOS型可变电容元件的一个端子施加控制电压，并且将基准电压施加到每个的MOS端子 MOS型可变电容元件。 MOS型可变电容元件也可以在杂质的掺杂量与栅电极下方的半导体层之间彼此不同。
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