公开(公告)号：US20120161887A1

公开(公告)日：2012-06-28

申请号：US12924252

申请日：2010-09-23

申请人： Manabu Ito ,  Hiroyuki Mitome ,  Takeo Oita

发明人： Manabu Ito ,  Hiroyuki Mitome ,  Takeo Oita

IPC分类号： H03L1/04

CPC分类号： H03L1/04

摘要： The present invention relates to an oven controlled crystal oscillator that can obtain stable oscillation frequency by reducing a temperature change in an oscillation element. The oven controlled crystal oscillator comprises; a heat-conducting plate mounted on one surface of a circuit board, a crystal resonator mounted on a surface of the heat-conducting plate opposite to the surface of the circuit board, an oscillation element constituting an oscillation circuit together with the crystal resonator, and a thermistor that detects temperature of the crystal resonator, a heating resistance which heats the crystal resonator, and a temperature control element including at least a power transistor, to constitute a temperature control circuit together with the thermistor and the heating resistance. In the oven controlled crystal oscillator, two or more open areas communicating with the heat-conducting plate at least in the thickness direction thereof are formed on the periphery of the heat-conducting plate at positions point-symmetric with respect to the crystal resonator, and one or more of each of the power transistor and the heating resistance are arranged in the same number in all of the open areas.

摘要翻译： 本发明涉及一种通过降低振荡元件温度变化可获得稳定的振荡频率的炉控晶体振荡器。 炉控晶体振荡器包括： 安装在电路板的一个表面上的导热板，安装在导电板的与电路板表面相对的表面上的晶体谐振器，与晶体谐振器一起构成振荡电路的振荡元件，以及 检测晶体谐振器的温度的热敏电阻，加热晶体谐振器的加热电阻和至少包括功率晶体管的温度控制元件，与热敏电阻和加热电阻一起构成温度控制电路。 在烤箱控制的晶体振荡器中，至少在厚度方向上与导热板连通的两个以上的开放区域相对于晶体谐振器形成在点对称的导热板的周围， 功率晶体管和加热电阻中的每一个中的一个或多个在所有开放区域中以相同的数量布置。

公开(公告)号：US07019596B2

公开(公告)日：2006-03-28

申请号：US10101008

申请日：2002-03-19

申请人： Takeo Oita ,  Yuichi Sato

发明人： Takeo Oita ,  Yuichi Sato

IPC分类号： H03B1/00

CPC分类号： H03B5/36

摘要： A high-frequency oscillator that enables a plurality of frequency signals to be output. The high-frequency oscillator outputs in parallel a plurality of frequency components from within a frequency spectrum of an oscillation output of a crystal oscillator, selects one or a plurality of frequency components from among the plurality of frequency components, and outputs the selected components as high-frequency outputs. In this way, a plurality of high-frequency signals can be obtained from one crystal oscillator.

摘要翻译： 能够输出多个频率信号的高频振荡器。 高频振荡器从晶体振荡器的振荡输出的频谱内并行输出多个频率分量，从多个频率分量中选择一个或多个频率分量，并将所选择的分量输出为高 频率输出。 以这种方式，可以从一个晶体振荡器获得多个高频信号。

公开(公告)号：US06909333B2

公开(公告)日：2005-06-21

申请号：US10329861

申请日：2002-12-26

申请人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

发明人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

IPC分类号： H03B7/14 ,  H03B9/14 ,  H03B5/18

CPC分类号： H03B9/147

摘要： A high frequency oscillator has a substrate made of, for example, a dielectric material, a resonator circuit disposed on one principal surface of the substrate and formed of a finite-length coplanar line having a signal line and a ground conductor arranged along the signal line on both sides thereof, a negative resistance element for connecting between the signal line and the ground conductor, and an output line routed on the other principal surface of the substrate and electromagnetically coupled to the resonator circuit through the substrate. A Gunn diode is preferably used for the negative resistance element, and is connected, for example, in a substantially central region of the signal line. The output line preferably forms a microstrip line structure together with the ground conductor.

摘要翻译： 高频振荡器具有由例如介电材料制成的衬底，设置在衬底的一个主表面上的谐振器电路，并且由具有沿信号线布置的信号线和接地导体的有限长度的共面线构成 在其两侧具有用于连接信号线和接地导体之间的负电阻元件，以及在衬底的另一个主表面上布线的输出线，并通过衬底电磁耦合到谐振器电路。 耿氏二极管优选用于负电阻元件，并且例如连接在信号线的大致中心区域。 输出线优选地与接地导体一起形成微带线结构。

公开(公告)号：US07352256B2

公开(公告)日：2008-04-01

申请号：US11447695

申请日：2006-06-06

申请人： Takeo Oita

发明人： Takeo Oita

IPC分类号： H03B5/32

CPC分类号： H03B5/32 ,  H03B5/36

摘要： A crystal oscillation circuit can correctly suppress the resonance of a B mode, thereby correctly excite the resonance of a C mode. Since the crystal oscillation circuit uses a quartz oscillator of an SC cut or an IC cut, the B mode (unnecessary mode) frequency is close to the C mode (main mode) frequency. Therefore, a C mode resonance circuit (main mode resonance circuit) for passing a C mode frequency and a trap circuit for suppressing the oscillation at an unnecessary mode frequency are provided in the feedback loop of the crystal oscillation circuit.

摘要翻译： 晶体振荡电路可以正确地抑制B模式的谐振，从而正确地激发C模式的谐振。 由于晶体振荡电路使用SC切割或IC切割的石英振荡器，B模式（不必要模式）频率接近于C模式（主模式）频率。 因此，在晶体振荡电路的反馈回路中设置用于使C模式频率通过的C模式谐振电路（主模式谐振电路）和用于抑制不必要模式频率的振荡的陷波电路。

公开(公告)号：US07145404B2

公开(公告)日：2006-12-05

申请号：US11046515

申请日：2005-01-28

申请人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

发明人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

IPC分类号： H03B7/12

CPC分类号： H03B5/1852

摘要： A push-push high frequency oscillator comprises a pair of amplifiers for oscillation, a loop-shaped microstrip line for connecting inputs of the pair of amplifiers to each other and connecting outputs of the pair of amplifiers to each other, a slot line disposed between the inputs and the outputs of the pair of amplifiers for electromagnetically coupling with the microstrip line, a nonlinear circuit for enhancing the level of harmonic components in an applied synchronization signal, a coupler circuit for electromagnetically coupling the output of the nonlinear circuit to the microstrip line, and a filter circuit disposed at the output of the nonlinear circuit. The filter circuit filters harmonic components of the synchronization signal such that the two oscillation systems are injected with the same frequency components as the fundamental wave or frequency components twice as high as the fundamental wave to increase frequency stability.

摘要翻译： 推挽式高频振荡器包括一对用于振荡的放大器，一个环形微带线，用于将一对放大器的输入彼此连接并将一对放大器的输出彼此连接，一条槽线设置在 用于与微带线电磁耦合的一对放大器的输入和输出，用于增强所施加的同步信号中的谐波分量的非线性电路，用于将非线性电路的输出电磁耦合到微带线的耦合器电路， 以及设置在非线性电路的输出端的滤波电路。 滤波器电路对同步信号的谐波分量进行滤波，使得两个振荡系统以与基波相同的基波或频率分量相同的频率分量被注入，以提高频率稳定性。

公开(公告)号：US07088032B2

公开(公告)日：2006-08-08

申请号：US11154289

申请日：2005-06-16

申请人： Takeo Oita ,  Minoru Fukuda

发明人： Takeo Oita ,  Minoru Fukuda

IPC分类号： H01L41/08

CPC分类号： H03B5/32 ,  H03H9/02102 ,  H03H9/0528 ,  H03H9/0542 ,  H03H9/0552 ,  H03H9/1014 ,  H03L1/04

摘要： A crystal oscillator of the present invention includes: a substrate provided in a package; a heating device arranged as surrounding an internal area of the substrate on at least one of the surfaces of the substrate; a crystal resonator or a crystal element and an oscillation circuit unit provided in an area enclosed by the heating device; a thermosensitive element which detects a temperature in an area enclosed by the heating device; and a control unit for controlling a heating value applied to the heating device based on a detection result of the thermosensitive element.

摘要翻译： 本发明的晶体振荡器包括：设置在封装中的衬底; 加热装置，其布置成在所述基板的至少一个表面上包围所述基板的内部区域; 设置在由加热装置封闭的区域中的晶体谐振器或晶体元件和振荡电路单元; 热敏元件，其检测由所述加热装置包围的区域中的温度; 以及控制单元，用于基于热敏元件的检测结果控制施加到加热装置的加热值。

公开(公告)号：US20050184818A1

公开(公告)日：2005-08-25

申请号：US11046542

申请日：2005-01-28

申请人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

发明人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

IPC分类号： H01P7/10 ,  H01P5/08 ,  H03B5/18 ,  H03B19/18 ,  H03L7/24

CPC分类号： H03B5/1894

摘要： A second-harmonic oscillator based on push-push oscillation has a pair of amplifiers for oscillation, a high frequency transmission line for connecting inputs of the pair of amplifiers to each other and connecting outputs of the pair of amplifiers to each other, and an electromagnetic coupling member disposed between the inputs and outputs of the pair of amplifiers such that it is electromagnetically coupled to the high frequency transmission line. The electromagnetic coupling member includes at least a dielectric resonator. The pair of amplifiers, high frequency transmission line, and electromagnetic coupling member form two oscillation loops which oscillate in opposite phases to each other with respect to a fundamental wave of oscillation for generating a second harmonic of the fundamental wave.

摘要翻译： 基于推挽振荡的二次谐波振荡器具有用于振荡的一对放大器，用于将一对放大器的输入彼此连接并将一对放大器的输出彼此连接的高频传输线，以及电磁 耦合构件设置在所述一对放大器的输入和输出之间，使得其与高频传输线电磁耦合。 电磁耦合构件至少包括介质谐振器。 一对放大器，高频传输线和电磁耦合构件形成两个振荡回路，其相对于用于产生基波的二次谐波的基波振荡彼此相反地振荡。

公开(公告)号：US06798305B2

公开(公告)日：2004-09-28

申请号：US10293150

申请日：2002-11-13

申请人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

发明人： Masayoshi Aikawa ,  Takayuki Tanaka ,  Fumio Asamura ,  Takeo Oita

IPC分类号： H03B712

CPC分类号： H03B5/1852

摘要： A high frequency oscillator suitable for implementing a push-push oscillator, a push-pull oscillator, and a four-phase push-push oscillator comprises a transmission line resonator, two active devices for oscillation connected to two resonant wave points, respectively, located on the transmission line resonator in an opposite phase relationship to each other, and a combiner line connected to an electric symmetric point of the transmission line resonator. The respective active devices constitute two oscillation systems, respectively, which share the transmission line resonator as a high frequency resonator. The combiner line combines outputs from the respective oscillation systems to generate a high frequency output.

摘要翻译： 适用于实施推挽振荡器，推挽振荡器和四相推挽振荡器的高频振荡器包括：传输线谐振器，分别连接到两个谐振波点的两个有源器件，分别位于 传输线谐振器彼此相反的相位关系，以及连接到传输线谐振器的电对称点的组合器线。 相应的有源器件分别构成共享作为高频谐振器的传输线谐振器的两个振荡系统。 组合器线组合来自各个振荡系统的输出以产生高频输出。

公开(公告)号：US06549083B2

公开(公告)日：2003-04-15

申请号：US09855686

申请日：2001-05-16

申请人： Nobuyuki Kanazawa ,  Takeo Oita ,  Yuichi Sato

发明人： Nobuyuki Kanazawa ,  Takeo Oita ,  Yuichi Sato

IPC分类号： H03B536

CPC分类号： H03B5/368 ,  H03B5/362

摘要： A high-frequency crystal oscillator capable of outputting a signal at a frequency, for example, higher than 500 MHz without using a multiplication amplifier. The high-frequency crystal oscillator comprises a voltage controlled Colpitts oscillation circuit operating at the fundamental frequency of a quartz-crystal element, means for increasing the level of harmonic component in an output from the Colpitts oscillation circuit, an SAW (Surface Acoustic Wave) filter for selecting a component of a predetermined order of the harmonic component, and a broadband amplifier for amplifying the component selected by the SAW filter. The means for increasing the levels of harmonic component is, for example, a resistor for setting the operating point of a transistor in the oscillation circuit such that an output signal is distorted.

摘要翻译： 能够输出频率例如高于500MHz的信号而不使用乘法放大器的高频晶体振荡器。 高频晶体振荡器包括以石英晶体元件的基频操作的电压控制的Colpitts振荡电路，用于增加来自Colpitts振荡电路的输出中的谐波分量的电平，SAW（表面声波）滤波器 用于选择谐波分量的预定次数的分量，以及用于放大由SAW滤波器选择的分量的宽带放大器。 用于增加谐波分量的装置是例如用于设置振荡电路中的晶体管的工作点的电阻器，使得输出信号失真。

公开(公告)号：US07378916B2

公开(公告)日：2008-05-27

申请号：US11057453

申请日：2005-02-14

申请人： Takeo Oita ,  Minoru Fukuda ,  Takaaki Ishikawa ,  Akihiro Nakamura ,  Kozo Ono ,  Fumio Asamura

发明人： Takeo Oita ,  Minoru Fukuda ,  Takaaki Ishikawa ,  Akihiro Nakamura ,  Kozo Ono ,  Fumio Asamura

IPC分类号： H03B5/32

CPC分类号： H03B5/04 ,  H03B5/366

摘要： The crystal oscillator device for simultaneously generating oscillator signals with a plurality of oscillation modes of a crystal unit, comprising: a primary resonator unit filtering the oscillator signal with a primary oscillation mode, which is one of the oscillation modes, from the output of the crystal unit, a secondary resonator unit filtering the oscillation signal, bearing a different resonance frequency from that of the primary resonator unit, with the primary oscillation mode from the output of the crystal unit, a primary phase synthesis unit, synthesizing the phases of the output signal of the primary resonator unit and the output signal of the secondary resonator unit, a tertiary resonator unit, a quaternary resonator unit, and a secondary phase synthesis unit.

摘要翻译： 一种用于同时产生具有晶体单元的多个振荡模式的振荡器信号的晶体振荡器装置，包括：从所述晶体的输出以主振荡模式（其为振荡模式之一）对所述振荡器信号进行滤波的主谐振器单元 单元，次级谐振器单元滤波振荡信号，与主谐振器单元的谐振频率不同，具有来自晶体单元的输出的主振荡模式，主相合成单元，合成输出信号的相位 的主谐振器单元和次谐波单元的输出信号，三次谐振器单元，四元谐振器单元和次级相位合成单元。