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1. 发明授权

US07202754B2 Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics 失效
标题翻译：振荡电路和L负载差分电路实现宽振荡频率范围和低相位噪声特性
公开(公告)号：US07202754B2
公开(公告)日：2007-04-10
申请号：US11280410
申请日：2005-11-17
申请人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
发明人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
IPC分类号： H03B5/18
CPC分类号： H03B5/1847 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1256 , H03B5/1265 , H03B5/1268
摘要： An oscillator circuit is formed of a differential LC resonant circuit formed of an L load differential circuit including inductance-variable portions and a capacitive element, and a positive feedback circuit formed of N-channel MOS transistors. The inductance-variable portion is configured to vary the inductance by selecting a plurality of switch circuits arranged between a plurality of arbitrary positions on a spiral interconnection layer and the input/output terminal, and thereby can control an oscillation frequency. The inductance-variable portions form an inductor pair when the switch circuit among the switch circuits coupled between the first input/output terminals is turned on together with the switch circuit.
摘要翻译：振荡电路由包括电感可变部分和电容元件的L负载差分电路和由N沟道MOS晶体管形成的正反馈电路构成的差分LC谐振电路形成。电感可变部被配置为通过选择布置在螺旋互连层上的多个任意位置和输入/输出端之间的多个开关电路来改变电感，从而可以控制振荡频率。当耦合在第一输入/输出端子之间的开关电路之间的开关电路与开关电路一起导通时，电感可变部分形成电感器对。

2. 发明申请

US20070146089A1 Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics 有权
标题翻译：振荡电路和L负载差分电路实现宽振荡频率范围和低相位噪声特性
公开(公告)号：US20070146089A1
公开(公告)日：2007-06-28
申请号：US11707937
申请日：2007-02-20
申请人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
发明人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
IPC分类号： H03B5/08
CPC分类号： H03B5/1847 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1256 , H03B5/1265 , H03B5/1268
摘要： An oscillator circuit is formed of a differential LC resonant circuit formed of an L load differential circuit including inductance-variable portions and a capacitor element, and a positive feedback circuit formed of N-channel MOS transistors. The inductance-variable portion is configured to vary the inductance by selecting a plurality of switch circuits arranged between a plurality of arbitrary positions on a spiral interconnection layer and the input/output terminal, and thereby can control an oscillation frequency. The inductance-variable portions form an inductor pair when the switch circuit among the switch circuits coupled between the first input/output terminals is turned on together with the switch circuit.
摘要翻译：振荡电路由包括电感可变部分和电容器元件的L负载差分电路和由N沟道MOS晶体管形成的正反馈电路构成的差分LC谐振电路形成。电感可变部被配置为通过选择布置在螺旋互连层上的多个任意位置和输入/输出端之间的多个开关电路来改变电感，从而可以控制振荡频率。当耦合在第一输入/输出端子之间的开关电路之间的开关电路与开关电路一起导通时，电感可变部分形成电感器对。

3. 发明授权

US07362194B2 Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics 有权
标题翻译：振荡电路和L负载差分电路实现宽振荡频率范围和低相位噪声特性
公开(公告)号：US07362194B2
公开(公告)日：2008-04-22
申请号：US11707937
申请日：2007-02-20
申请人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
发明人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
IPC分类号： H03B5/18
CPC分类号： H03B5/1847 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1256 , H03B5/1265 , H03B5/1268
摘要： An oscillator circuit is formed of a differential LC resonant circuit formed of an L load differential circuit including inductance-variable portions and a capacitor element, and a positive feedback circuit formed of N-channel MOS transistors. The inductance-variable portion is configured to vary the inductance by selecting a plurality of switch circuits arranged between a plurality of arbitrary positions on a spiral interconnection layer and the input/output terminal, and thereby can control an oscillation frequency. The inductance-variable portions form an inductor pair when the switch circuit among the switch circuits coupled between the first input/output terminals is turned on together with the switch circuit.
摘要翻译：振荡电路由包括电感可变部分和电容器元件的L负载差分电路和由N沟道MOS晶体管形成的正反馈电路构成的差分LC谐振电路形成。电感可变部被配置为通过选择布置在螺旋互连层上的多个任意位置和输入/输出端之间的多个开关电路来改变电感，从而可以控制振荡频率。当耦合在第一输入/输出端子之间的开关电路之间的开关电路与开关电路一起导通时，电感可变部分形成电感器对。

4. 发明申请

US20060071732A1 Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics 失效
标题翻译：振荡电路和L负载差分电路实现宽振荡频率范围和低相位噪声特性
公开(公告)号：US20060071732A1
公开(公告)日：2006-04-06
申请号：US11280410
申请日：2005-11-17
申请人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
发明人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
IPC分类号： H03B5/08
CPC分类号： H03B5/1847 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1256 , H03B5/1265 , H03B5/1268
摘要： An oscillator circuit is formed of a differential LC resonant circuit formed of an L load differential circuit including inductance-variable portions and a capacitive element, and a positive feedback circuit formed of N-channel MOS transistors. The inductance-variable portion is configured to vary the inductance by selecting a plurality of switch circuits arranged between a plurality of arbitrary positions on a spiral interconnection layer and the input/output terminal, and thereby can control an oscillation frequency. The inductance-variable portions form an inductor pair when the switch circuit among the switch circuits coupled between the first input/output terminals is turned on together with the switch circuit.
摘要翻译：振荡电路由包括电感可变部分和电容元件的L负载差分电路和由N沟道MOS晶体管形成的正反馈电路构成的差分LC谐振电路形成。电感可变部被配置为通过选择布置在螺旋互连层上的多个任意位置和输入/输出端之间的多个开关电路来改变电感，从而可以控制振荡频率。当耦合在第一输入/输出端子之间的开关电路之间的开关电路与开关电路一起导通时，电感可变部分形成电感器对。

5. 发明授权

US06826393B1 Mixer circuit having component for frequency conversion 失效
标题翻译：混频器电路具有用于频率转换的组件
公开(公告)号：US06826393B1
公开(公告)日：2004-11-30
申请号：US09547920
申请日：2000-04-11
申请人： Hiroshi Komurasaki , Hisayasu Sato , Takahiro Miki
发明人： Hiroshi Komurasaki , Hisayasu Sato , Takahiro Miki
IPC分类号： H04B128
CPC分类号： H03D7/1433 , H03D7/1425 , H03D7/1458 , H03D7/1491 , H03D2200/0025 , H03D2200/0043
摘要： A mixer circuit according to the present invention includes a first differential transistor pair of two transistors, a second differential transistor pair of two transistors, an impedance element connected to the first differential transistor pair, an impedance element connected to the second differential transistor pair, an inductor connected to nodes A, B, a current source connected to node A, a current source connected to node B, and a capacitor. A mixer circuit with high conversion gain and small distortion can be obtained.
摘要翻译：根据本发明的混频器电路包括两个晶体管的第一差分晶体管对，两个晶体管的第二差分晶体管对，连接到第一差分晶体管对的阻抗元件，连接到第二差分晶体管对的阻抗元件，电感器连接到节点A，B，连接到节点A的电流源，连接到节点B的电流源和电容器。可以获得具有高转换增益和小失真的混频器电路。

6. 发明授权

US06639446B2 High linearity, high gain mixer circuit 失效
公开(公告)号：US06639446B2
公开(公告)日：2003-10-28
申请号：US10193300
申请日：2002-07-12
申请人： Hiroshi Komurasaki , Hisayasu Sato , Kimio Ueda
发明人： Hiroshi Komurasaki , Hisayasu Sato , Kimio Ueda
IPC分类号： G06G712
CPC分类号： H03D7/125
摘要： A mixer circuit includes a first signal input terminal connected to the gate of a first MOSFET, and a second signal input terminal connected to the gate of a second MOSFET. The mixer circuit is configured such that a relationship (VG1−VGS2)

7. 发明授权

US06069579A Folding type A/D converter and folding type A/D converter circuit 有权
标题翻译：折叠式A / D转换器和折叠式A / D转换电路
公开(公告)号：US06069579A
公开(公告)日：2000-05-30
申请号：US131238
申请日：1998-08-07
申请人： Masao Ito , Takeshi Shigenobu , Toshio Kumamoto , Takahiro Miki , Hiroshi Komurasaki
发明人： Masao Ito , Takeshi Shigenobu , Toshio Kumamoto , Takahiro Miki , Hiroshi Komurasaki
IPC分类号： H03M1/14 , H03M1/20 , H03M1/36 , H03M1/12
CPC分类号： H03M1/205 , H03M1/141
摘要： An A/D converter simplifies its circuit configuration without deteriorating accuracy in A/D conversion. A circuit is formed of a folding and interpolation type. A gain-variable pre-amplifier group 11 amplifies each of reference voltages Vref1 to VrefN and an analog input voltage Vin, to output the result to a folding amplifier group 12, while a gain-variable pre-amplifier group 21 amplifies each of reference voltages Vrr1 to VrrJ and the analog input voltage Vin, to output the result to a comparator group 24. Each of pre-amplifiers constituting the gain-variable pre-amplifier groups 11 and 21 has an amplification factor that varies in upper and lower comparison periods according to a clock control signal .PHI.cnt.
摘要翻译： A / D转换器简化了其电路配置，而不会降低A / D转换的精度。电路由折叠和内插形式组成。增益可变前置放大器组11放大每个参考电压Vref1至VrefN和模拟输入电压Vin，以将结果输出到折叠放大器组12，而增益可变的前置放大器组21放大每个参考电压 Vrr1至VrrJ和模拟输入电压Vin，将结果输出到比较器组24.构成增益可变前置放大器组11和21的每个前置放大器具有在上和下比较周期内变化的放大系数，到时钟控制信号PHI cnt。

8. 发明授权

US06798678B2 Frequency voltage converter 有权
标题翻译：频率电压转换器
公开(公告)号：US06798678B2
公开(公告)日：2004-09-28
申请号：US09900017
申请日：2001-07-09
申请人： Hiroshi Komurasaki , Hisayasu Sato , Takahiro Miki
发明人： Hiroshi Komurasaki , Hisayasu Sato , Takahiro Miki
IPC分类号： H02M500
CPC分类号： H03L7/0805 , H03D3/06 , H03K5/135 , H03K9/06 , H03L7/0812 , H03L7/0995 , H04L27/14
摘要： There is provided a frequency voltage converter comprises a first transmission line for transmitting an input signal and a second transmission line provided with a delay line circuit, a third transmission line for transmitting a reference signal and a fourth transmission line provided with a delay line circuit, a mixer circuit, and a locked loop having a control circuit for outputting the same control signal to control portions of both delay line circuits so that the amount of a delay by the delay line circuit reaches one cycle of the reference signal, thereby holding linearity with respect to the frequency of a modulated wave signal and executing frequency voltage conversion even when a center frequency is low.
摘要翻译：提供了一种频率电压转换器，包括用于发送输入信号的第一传输线和设置有延迟线电路的第二传输线，用于传送参考信号的第三传输线和设置有延迟线电路的第四传输线，混频器电路和锁定环路，具有控制电路，用于将相同的控制信号输出到两个延迟线电路的控制部分，使得延迟线电路的延迟量达到参考信号的一个周期，从而保持与相对于调制波信号的频率，即使中心频率低，也执行频率电压转换。

9. 发明授权

US06522711B2 Variable frequency divider circuit 有权
公开(公告)号：US06522711B2
公开(公告)日：2003-02-18
申请号：US09961184
申请日：2001-09-24
申请人： Hideyuki Wakada , Naoyuki Kato , Hisayasu Satoh , Hiroshi Komurasaki
发明人： Hideyuki Wakada , Naoyuki Kato , Hisayasu Satoh , Hiroshi Komurasaki
IPC分类号： H03K2100
CPC分类号： H03K23/667
摘要： In a variable frequency divider formed of a latch train, a frequency division ratio is set through selective invalidating a feedback signal to a first stage latch from the last stage latch. A size of MOS (metal-insulator-semiconductor) transistors for switching the division ratio is made larger than that of other MOS transistors in differential stages in the last stage latch circuit. Further, differential signals are transmitted as feedback signals to the first stage latch circuit. A F/(F+1) prescaler which operates stably with a low current consumption under a low power supply voltage condition is implemented.

10. 发明授权

US5973539A Mixer circuit for mixing two signals having mutually different frequencies 失效
标题翻译：用于混合具有相互不同频率的两个信号的混频器电路
公开(公告)号：US5973539A
公开(公告)日：1999-10-26
申请号：US982032
申请日：1997-12-01
申请人： Hiroshi Komurasaki , Hisayasu Satoh
发明人： Hiroshi Komurasaki , Hisayasu Satoh
IPC分类号： H03F3/45 , H03D7/14 , G06F7/44
CPC分类号： H03D7/1433 , H03D7/1441 , H03D2200/0084
摘要： A phase shifter is provided between common emitters of two differential transistor pairs of a mixer circuit. The phase shifter changes the phase of a voltage signal input to one common emitter by 180.degree. and applies it to the other common emitter, and causes a current in accordance with the voltage between the common emitters. As compared with the prior art employing two stages of vertically connected differential transistor pairs, the power supply voltage can be reduced.
摘要翻译：在混频器电路的两个差分晶体管对的公共发射极之间提供移相器。移相器将输入到一个公共发射极的电压信号的相位改变180°，并将其施加到另一个公共发射极，并根据公共发射极之间的电压产生电流。与采用两级垂直连接的差分晶体管对的现有技术相比，可以降低电源电压。

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