公开(公告)号：US08228131B2

公开(公告)日：2012-07-24

申请号：US13005176

申请日：2011-01-12

申请人： Kei Nagatomo ,  Hisato Takeuchi ,  Shuuji Shibuya

发明人： Kei Nagatomo ,  Hisato Takeuchi ,  Shuuji Shibuya

IPC分类号： H03B5/32

CPC分类号： H03L3/00 ,  H03L1/022

摘要： In a crystal-oscillator circuit having a quartz crystal unit, further stabilization of output frequency change at a time of startup of the power supply is achieved. A crystal-oscillator circuit having a quartz crystal unit includes a first variable-capacitance element, which forms an oscillation loop with the quartz crystal unit, and a temperature compensation circuit which provides a first control signal for the first variable-capacitance element to compensate for a temperature characteristic of the quartz crystal unit. In addition, the crystal-oscillator circuit includes a second variable-capacitance element group, and a time constant circuit which provides a time constant signal, which changes with a predetermined time constant, for the second variable-capacitance element group as a second control signal.

摘要翻译： 在具有石英晶体单元的晶体振荡器电路中，实现了在电源启动时输出频率变化的进一步稳定。 具有石英晶体单元的晶体振荡器电路包括与石英晶体单元形成振荡环路的第一可变电容元件和温度补偿电路，该电路为第一可变电容元件提供第一控制信号以补偿 石英晶体单元的温度特性。 此外，晶体振荡器电路包括第二可变电容元件组和时间常数电路，其将作为第二控制信号的第二可变电容元件组提供以预定时间常数变化的时间常数信号 。

公开(公告)号：US20110227655A1

公开(公告)日：2011-09-22

申请号：US13005176

申请日：2011-01-12

申请人： Kei NAGATOMO ,  Hisato Takeuchi ,  Shuuji Shibuya

发明人： Kei NAGATOMO ,  Hisato Takeuchi ,  Shuuji Shibuya

IPC分类号： H03L7/00

CPC分类号： H03L3/00 ,  H03L1/022

摘要： In a crystal-oscillator circuit having a quartz crystal unit, further stabilization of output frequency change at a time of startup of the power supply is achieved. A crystal-oscillator circuit having a quartz crystal unit includes a first variable-capacitance element, which forms an oscillation loop with the quartz crystal unit, and a temperature compensation circuit which provides a first control signal for the first variable-capacitance element to compensate for a temperature characteristic of the quartz crystal unit. In addition, the crystal-oscillator circuit includes a second variable-capacitance element group, and a time constant circuit which provides a time constant signal, which changes with a predetermined time constant, for the second variable-capacitance element group as a second control signal.

摘要翻译： 在具有石英晶体单元的晶体振荡器电路中，实现了在电源启动时输出频率变化的进一步稳定。 具有石英晶体单元的晶体振荡器电路包括与石英晶体单元形成振荡环路的第一可变电容元件和温度补偿电路，该电路为第一可变电容元件提供第一控制信号以补偿 石英晶体单元的温度特性。 此外，晶体振荡器电路包括第二可变电容元件组和时间常数电路，其将作为第二控制信号的第二可变电容元件组提供以预定时间常数变化的时间常数信号 。

公开(公告)号：US20080258830A1

公开(公告)日：2008-10-23

申请号：US12105879

申请日：2008-04-18

申请人： Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

发明人： Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

IPC分类号： H03L1/02 ,  H03B5/32 ,  H03L7/099

CPC分类号： H03B5/36 ,  H03L1/026 ,  H03L1/028

摘要： A temperature-compensated crystal oscillator includes a mode selector circuit 100, a control logic serial•interface 200, a PROM circuit 300, an oscillation control circuit 400 and an oscillation circuit 500, and has, as terminals, a power terminal (VCC/CLK) 11, an input terminal (VC/DATA/PE) 12, an output terminal (OUT) 13 and a ground terminal (GND) 14. The mode selector circuit 100 switches the crystal oscillator to an emulation mode when a first signal in which a power voltage and a clock signal supplied through the power terminal 11 are superimposed, is inputted from the power terminal and a second signal having a predetermined pattern is inputted from the input terminal 12.

摘要翻译： 温度补偿晶体振荡器包括模式选择器电路100，控制逻辑串行接口200，PROM电路300，振荡控制电路400和振荡电路500，并且具有作为终端的电源端子（VCC / CLK ）11，输入端子（VC / DATA / PE）12，输出端子（OUT）13和接地端子（GND）14。 当从电源端子输入通过电源端子11提供的电源电压和提供的电源电压和时钟信号的第一信号时，模式选择器电路100将晶体振荡器切换到仿真模式，并且具有预定模式的第二信号是 从输入端子12输入。

公开(公告)号：US07808333B2

公开(公告)日：2010-10-05

申请号：US12105879

申请日：2008-04-18

申请人： Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

发明人： Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

IPC分类号： H03B5/32 ,  H03L1/02

CPC分类号： H03B5/36 ,  H03L1/026 ,  H03L1/028

摘要： A temperature-compensated crystal oscillator includes a mode selector circuit 100, a control logic serial•interface 200, a PROM circuit 300, an oscillation control circuit 400 and an oscillation circuit 500, and has, as terminals, a power terminal (VCC/CLK) 11, an input terminal (VC/DATA/PE) 12, an output terminal (OUT) 13 and a ground terminal (GND) 14. The mode selector circuit 100 switches the crystal oscillator to an emulation mode when a first signal in which a power voltage and a clock signal supplied through the power terminal 11 are superimposed, is inputted from the power terminal and a second signal having a predetermined pattern is inputted from the input terminal 12.

摘要翻译： 温度补偿晶体振荡器包括模式选择器电路100，控制逻辑串行接口200，PROM电路300，振荡控制电路400和振荡电路500，并且具有作为终端的电源端子（VCC / CLK ）11，输入端子（VC / DATA / PE）12，输出端子（OUT）13和接地端子（GND）14.模式选择器电路100将第一信号切换到仿真模式 从电源端子输入通过电源端子11提供的电源电压和时钟信号，并且从输入端子12输入具有预定图案的第二信号。

公开(公告)号：US07492231B2

公开(公告)日：2009-02-17

申请号：US11238145

申请日：2005-09-29

申请人： Kei Nagatomo ,  Keigo Shingu ,  Hisato Takeuchi

发明人： Kei Nagatomo ,  Keigo Shingu ,  Hisato Takeuchi

IPC分类号： H03B5/32

CPC分类号： H03L3/00 ,  H03B5/06 ,  H03B5/36

摘要： An oscillator starting control circuit capable of shortening a starting time and stably controlling the starting time, and furthermore, stabilizing an oscillating frequency after starting an oscillating circuit. An oscillating circuit (1) is a crystal oscillating circuit in which an input and an output of an inverter (14) are connected to both ends of a crystal oscillator (15) and both ends of a resistor (16), the input is connected to a drain of an MOS variable capacity (10), the output is connected to a drain of an MOS variable capacity (11), a source of the MOS variable capacity (10) is connected to a fixed capacity (12), a source of the MOS variable capacity (11) is connected to a fixed capacity (13), and the other ends of the fixed capacities (12, 13) are connected to a GND.

摘要翻译： 一种振荡器启动控制电路，其能够缩短启动时间并稳定地控制启动时间，此外，在启动振荡电路之后稳定振荡频率。 振荡电路（1）是晶体振荡电路，其中反相器（14）的输入和输出连接到晶体振荡器（15）的两端和电阻器（16）的两端，输入端连接 到达可变容量（10）的漏极，输出与MOS可变容量（11）的漏极连接，MOS可变容量（10）的源极连接到固定容量（12），源极 的MOS可变容量（11）连接到固定容量（13），固定容量（12,13）的另一端连接到GND。

公开(公告)号：US20070222532A1

公开(公告)日：2007-09-27

申请号：US11714834

申请日：2007-03-07

申请人： Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

发明人： Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

IPC分类号： H03L1/00

CPC分类号： H03L1/022 ,  H03B5/04 ,  H03B5/366

摘要： There is provided a temperature-compensated crystal oscillator for reducing a voltage noise of a cubic function control voltage controlling an output frequency of an oscillation circuit.A temperature-compensated crystal oscillator includes a quartz vibrator, an amplifier having an oscillation frequency controller, and a temperature compensation circuit of a crystal oscillation frequency, wherein a reference voltage for a compensation voltage of the temperature compensation circuit is generated using a forward voltage of a diode.

摘要翻译： 提供了一种用于降低控制振荡电路的输出频率的三次函数控制电压的电压噪声的温度补偿晶体振荡器。 温度补偿晶体振荡器包括石英振子，具有振荡频率控制器的放大器和晶体振荡频率的温度补偿电路，其中用于温度补偿电路的补偿电压的参考电压使用 二极管。

公开(公告)号：US07633350B2

公开(公告)日：2009-12-15

申请号：US11806300

申请日：2007-05-31

申请人： Kei Nagatomo ,  Hisato Takeuchi ,  Keigo Shingu

发明人： Kei Nagatomo ,  Hisato Takeuchi ,  Keigo Shingu

IPC分类号： H03L1/00

CPC分类号： H03L1/022

摘要： A first order function generation circuit receives a signal from a temperature sensor circuit, and generates a first order function control signal V1 that is affected by the ambient temperature. A fourth order and fifth order approximation function generation circuit receives signals from the temperature sensor circuit and from the third order approximation function generation circuit, and generates a fourth and fifth order approximation function control signal V45 that is affected by the ambient temperature. A peak change point adjustment circuit outputs a signal to adjust the value of a peak change point temperature Ti for the third order approximation function generation circuit, the first order generation function circuit and the fourth order and fifth order approximation function generation circuit. A temperature compensation circuit adds together control signals V0, V1, V3 and V5, and outputs the resultant signal Vc.

摘要翻译： 第一阶函数发生电路接收来自温度传感器电路的信号，并产生受环境温度影响的一阶函数控制信号V1。 第四阶和五阶近似函数产生电路接收来自温度传感器电路和三阶近似函数产生电路的信号，并产生受环境温度影响的第四和第五阶近似函数控制信号V45。 峰值变化点调整电路输出用于三阶近似函数发生电路，第一阶函数电路和第四阶和五阶近似函数产生电路的峰值变化点温度Ti的值的信号。 温度补偿电路将控制信号V0，V1，V3和V5相加，并输出结果信号Vc。

公开(公告)号：US07579917B2

公开(公告)日：2009-08-25

申请号：US11727096

申请日：2007-03-23

申请人： Motoki Sakai ,  Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

发明人： Motoki Sakai ,  Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

IPC分类号： H03B5/36 ,  H03L5/00

CPC分类号： H03K5/06 ,  H03K2005/00156

摘要： The object of the present invention is to provide a crystal oscillator with one IC capable of effectively responding to specifications or a frequency of an installed set, an output terminal of the oscillator 1 is connected to an input terminal of the inverter 2, an output terminal of which is connected to the first resistor 7 and one terminal of the second resistor 8, the other terminal of the first resistor 7 is connected to one terminal of the first capacitor 9 and an input terminal of the first transistor 3, the other terminal of the first capacitor 9 is connected to one terminal of the first switch 11, and the other terminal of the first switch 11 is grounded, the other terminal of the second resistor 8 is connected to one terminal of the second capacitor 10 and an input terminal of the second transistor 4, the other terminal of the second capacitor 10 is connected to one terminal of the second switch 12, and the other terminal of the second switch 12 is grounded, an output terminal of the first transistor 3 and an output terminal of the second transistor 4 are connected to the oscillation output terminal 5, and the first switch 11 and the second switch 12 are controlled by the storage device 13.

摘要翻译： 本发明的目的是提供一种具有能够有效响应安装组件的规格或频率的一个IC的晶体振荡器，振荡器1的输出端子连接到逆变器2的输入端子，输出端子 其连接到第一电阻器7和第二电阻器8的一个端子，第一电阻器7的另一个端子连接到第一电容器9的一个端子和第一晶体管3的输入端子，另一个端子 第一电容器9连接到第一开关11的一个端子，第一开关11的另一个端子接地，第二电阻器8的另一个端子连接到第二电容器10的一个端子， 第二晶体管4，第二电容器10的另一个端子连接到第二开关12的一个端子，而第二开关12的另一个端子接地，输出端子 第一晶体管3的输出端子和第二晶体管4的输出端子连接到振荡输出端子5，并且第一开关11和第二开关12由存储装置13控制。

公开(公告)号：US20080007363A1

公开(公告)日：2008-01-10

申请号：US11806300

申请日：2007-05-31

申请人： Kei Nagatomo ,  Hisato Takeuchi ,  Keigo Shingu

发明人： Kei Nagatomo ,  Hisato Takeuchi ,  Keigo Shingu

IPC分类号： H03L1/02

CPC分类号： H03L1/022

摘要： A first order function generation circuit receives a signal from a temperature sensor circuit, and generates a fist order function control signal V1 that is affected by the ambient temperature. A fourth order and fifth order approximation function generation circuit receives signals from the temperature sensor circuit and from the third order approximation function generation circuit, and generates a fourth and fifth order approximation function control signal V45 that is affected by the ambient temperature. A peak change point adjustment circuit outputs a signal to adjust the value of a peak change point temperature Ti for the third order approximation function generation circuit, the first order generation function circuit and the fourth order and fifth order approximation function generation circuit. A temperature compensation circuit adds together control signals V0, V1, V3 and V5, and outputs the resultant signal Vc.

摘要翻译： 第一阶函数发生电路接收来自温度传感器电路的信号，并产生受环境温度影响的第一阶函数控制信号V 1。 第四级和五阶近似函数发生电路从温度传感器电路和三阶近似函数产生电路接收信号，并产生受环境温度影响的第四和五阶近似函数控制信号V 45。 峰值变化点调整电路输出用于三阶近似函数发生电路，第一阶函数电路和第四阶和五阶近似函数产生电路的峰值变化点温度Ti的值的信号。 温度补偿电路将控制信号V 0，V 1，V 3和V 5相加，并输出结果信号Vc。

公开(公告)号：US20070236302A1

公开(公告)日：2007-10-11

申请号：US11727096

申请日：2007-03-23

申请人： Motoki Sakai ,  Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

发明人： Motoki Sakai ,  Hisato Takeuchi ,  Keigo Shingu ,  Kei Nagatomo

IPC分类号： H03B5/32

CPC分类号： H03K5/06 ,  H03K2005/00156

摘要： The object of the present invention is to provide a crystal oscillator with one IC capable of effectively responding to specifications or a frequency of an installed set, an output terminal of the oscillator 1 is connected to an input terminal of the inverter 2, an output terminal of which is connected to the first resistor 7 and one terminal of the second resistor 8, the other terminal of the first resistor 7 is connected to one terminal of the first capacitor 9 and an input terminal of the first transistor 3, the other terminal of the first capacitor 9 is connected to one terminal of the first switch 11, and the other terminal of the first switch 11 is grounded, the other terminal of the second resistor 8 is connected to one terminal of the second capacitor 10 and an input terminal of the second transistor 4, the other terminal of the second capacitor 10 is connected to one terminal of the second switch 12, and the other terminal of the second switch 12 is grounded, an output terminal of the first transistor 3 and an output terminal of the second transistor 4 are connected to the oscillation output terminal 5, and the first switch 11 and the second switch 12 are controlled by the storage device 13.

摘要翻译： 本发明的目的是提供一种具有能够有效响应安装组件的规格或频率的一个IC的晶体振荡器，振荡器1的输出端子连接到逆变器2的输入端子，输出端子 其连接到第一电阻器7和第二电阻器8的一个端子，第一电阻器7的另一个端子连接到第一电容器9的一个端子和第一晶体管3的输入端子，另一个端子 第一电容器9连接到第一开关11的一个端子，第一开关11的另一个端子接地，第二电阻器8的另一个端子连接到第二电容器10的一个端子， 第二晶体管4，第二电容器10的另一个端子连接到第二开关12的一个端子，而第二开关12的另一个端子接地，输出端子 第一晶体管3的输出端子和第二晶体管4的输出端子连接到振荡输出端子5，并且第一开关11和第二开关12由存储装置13控制。