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1. 发明申请

US20070103248A1 Oscillator and data processing equipment using the same and voltage control oscillator and data processing equipment using voltage control oscillator 失效
标题翻译：振荡器和数据处理设备使用相同的压控振荡器和数据处理设备使用压控振荡器
公开(公告)号：US20070103248A1
公开(公告)日：2007-05-10
申请号：US11594102
申请日：2006-11-08
申请人： Takahiro Nakamura , Toru Masuda , Tomomitsu Kitamura , Norio Hayashi , Hiroshi Mori
发明人： Takahiro Nakamura , Toru Masuda , Tomomitsu Kitamura , Norio Hayashi , Hiroshi Mori
IPC分类号： H03B5/08
CPC分类号： H03J3/20 , H03B5/1215 , H03B5/1218 , H03B5/1228 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B5/1265 , H03B5/1293 , H03B5/1296 , H03B2201/0208 , H03B2201/0216 , H03D3/007 , H03J2200/10
摘要： An LC resonant circuit of an oscillator includes a parallel circuit of an inductor, a first fine adjustable capacitor and a first capacitor bank, and a series circuit of a second fine adjustable capacitor and a second capacitor bank. A frequency conversion gain of the oscillator is the sum of a frequency conversion gain of the oscillator based upon the first fine adjustable capacitor which decreases according to increase of a capacitance value of the capacitor bank and a frequency conversion gain based upon the second fine adjustable capacitor which increases according to increase of a capacitance value of the second capacitor bank. Accordingly, an LC resonant circuit for an oscillator with reduced fluctuation of a frequency conversion gain, and an oscillator and a data processing equipment using the same are provided.
摘要翻译：振荡器的LC谐振电路包括电感器的并联电路，第一微调可调电容器和第一电容器组，以及第二精细可调电容器和第二电容器组的串联电路。振荡器的变频增益是基于根据电容器组的电容值的增加而减小的第一微调电容器的振荡器的频率转换增益和基于第二微调电容器的频率转换增益的和其根据第二电容器组的电容值的增加而增加。因此，提供了一种用于具有降低的变频增益波动的振荡器的LC谐振电路，以及使用其的振荡器和数据处理设备。

2. 发明授权

US07177612B2 Frequency generator and communication system using the same 失效
标题翻译：频率发生器和通信系统使用相同
公开(公告)号：US07177612B2
公开(公告)日：2007-02-13
申请号：US10901966
申请日：2004-07-30
申请人： Takahiro Nakamura , Kenichi Ohhata , Toru Masuda
发明人： Takahiro Nakamura , Kenichi Ohhata , Toru Masuda
IPC分类号： H04B7/00 , H04B1/18 , H04B1/16
CPC分类号： H03F3/345 , H03B5/1215 , H03B5/1221 , H03B5/1228 , H03B5/1231 , H03B5/1243 , H03F1/30 , H03F3/3435 , H03F3/4508 , H03F3/50 , H03F2200/372 , H03F2203/45264
摘要： A frequency generator which can perform stable frequency oscillation unaffected by temperature variation.A frequency generator having a differential amplifier (1) having an LC resonance circuit (10) as a load and buffer circuits (21, 22) feeding back an output of the differential amplifier to its input, wherein a temperature coefficient converter (5) converting an output voltage of a reference voltage generator (4) and its temperature dependence to a voltage having a predetermined voltage and temperature coefficient and outputting it is provided to control bias currents IEF of emitter follower circuits to be in proportion to temperature variation. There are a characteristic in which delay time of the emitter follower circuits constructing the buffer circuits is in inverse proportion to a transconductance of transistors and a characteristic in which the transconductance is in inverse proportion to temperature and is in proportion to the bias currents IEF. An oscillation frequency stable to temperature variation can be obtained.
摘要翻译：频率发生器，可以进行不受温度变化影响的稳定频率振荡。一种频率发生器，具有作为负载的LC谐振电路（10）的差分放大器（1）和将差分放大器的输出反馈到其输入端的缓冲电路（21,22），其中温度系数转换器（5）转换参考电压发生器（4）的输出电压及其与具有预定电压和温度系数的电压的温度依赖性并输出，以将射极跟随器电路的偏置电流IEF控制为与温度变化成比例。构成缓冲电路的射极跟随器电路的延迟时间与晶体管的跨导成反比的特性以及跨导与温度成反比并与偏置电流IEF成比例的特性。可以得到温度变化稳定的振荡频率。

3. 发明授权

US08121579B2 Active mixer circuit and a receiver circuit or a millimeter-wave communication unit using it 有权
标题翻译：有源混频器电路和接收器电路或使用它的毫米波通信单元
公开(公告)号：US08121579B2
公开(公告)日：2012-02-21
申请号：US12370159
申请日：2009-02-12
申请人： Nobuhiro Shiramizu , Toru Masuda , Takahiro Nakamura , Katsuyoshi Washio , Masamichi Tanabe
发明人： Nobuhiro Shiramizu , Toru Masuda , Takahiro Nakamura , Katsuyoshi Washio , Masamichi Tanabe
IPC分类号： H04B1/16 , H04B1/26 , H03D7/16
CPC分类号： H04B1/28 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D2200/0023 , H03D2200/0043
摘要： The present invention provides a semiconductor integrated circuit including an active mixer circuit that is operated at low voltage, low noise, and low power consumption. It includes a transconductance amplifier, a transformer, and a multiplier, connects a transformer between the transconductance amplifier and the multiplier, and separates between the transconductance amplifier and the multiplier with respect to direct current inside the transformer. Further, each of the tranconductance amplifier and the multiplier is configured of transistors that are single-stacked between the supply voltage terminal and ground terminal.
摘要翻译：本发明提供一种半导体集成电路，包括以低电压，低噪声和低功耗工作的有源混频器电路。它包括跨导放大器，变压器和乘法器，连接跨导放大器和乘法器之间的变压器，并且相对于变压器内部的直流电流在跨导放大器和乘法器之间分离。此外，跨导放大器和乘法器中的每一个由在电源电压端子和接地端子之间单层堆叠的晶体管构成。

4. 发明授权

US07642618B2 Semiconductor devices with inductors 有权
标题翻译：具有电感器的半导体器件
公开(公告)号：US07642618B2
公开(公告)日：2010-01-05
申请号：US11183800
申请日：2005-07-19
申请人： Nobuhiro Shiramizu , Takahiro Nakamura , Toru Masuda , Nobuhiro Kasa , Hiroshi Mori
发明人： Nobuhiro Shiramizu , Takahiro Nakamura , Toru Masuda , Nobuhiro Kasa , Hiroshi Mori
IPC分类号： H01L27/00 , H01F27/28
CPC分类号： H01L23/5227 , H01F17/0006 , H01L2924/0002 , H01L2924/3011 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1271 , H01L2924/00
摘要： Semiconductor devices are provided with high performance high-frequency circuits in which interference caused by inductors is reduced. In a semiconductor device including a modulator circuit to modulate a carrier wave by a base band signal to output an RF signal and a demodulator circuit to demodulate the RF signal by use of the carrier wave to gain the base band signal and a local oscillator to generate the carrier wave, inductors respectively having a closed loop wire are adopted. Interference caused by mutual inductance is reduced by the closed loop wire. For example, where inductors are adopted in the modulator circuit, a closed loop wire is disposed around the outer periphery of the inductors.
摘要翻译：半导体器件设置有由电感器引起的干扰减小的高性能高频电路。在包括通过基带信号调制载波以调制RF信号的调制器电路以及解调器电路的半导体器件中，通过使用载波来解调RF信号以获得基带信号和本地振荡器以产生采用载波，分别具有闭环线的电感器。通过闭环线减少互感造成的干扰。例如，在调制器电路中采用电感器的情况下，围绕电感器的外周设置闭环线。

5. 发明申请

US20060038621A1 Semiconductor devices with inductors 有权
标题翻译：具有电感器的半导体器件
公开(公告)号：US20060038621A1
公开(公告)日：2006-02-23
申请号：US11183800
申请日：2005-07-19
申请人： Nobuhiro Shiramizu , Takahiro Nakamura , Toru Masuda , Nobuhiro Kasa , Hiroshi Mori
发明人： Nobuhiro Shiramizu , Takahiro Nakamura , Toru Masuda , Nobuhiro Kasa , Hiroshi Mori
IPC分类号： H03J7/02
CPC分类号： H01L23/5227 , H01F17/0006 , H01L2924/0002 , H01L2924/3011 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1271 , H01L2924/00
摘要： Semiconductor devices provided with high performance high-frequency circuits that reduce interference caused by inductors are provided. In the semiconductor device including a modulator circuit to modulate a carrier wave by a base band signal to output an RF signal and a demodulator circuit to demodulate the RF signal by use of the carrier wave to gain the base band signal and a local oscillator to generate the carrier wave, inductors respectively having a closed loop wire are adopted. Interference caused by mutual inductance is reduced by the closed loop wire. For example, where inductors are adopted in the modulator circuit, a closed loop wire is disposed around the outer periphery of the inductors.
摘要翻译：提供了具有降低由电感器引起的干扰的高性能高频电路的半导体器件。在包括通过基带信号调制载波以调制RF信号的调制器电路和解调器电路的半导体器件中，通过使用载波来解调RF信号以获得基带信号和本地振荡器以产生采用载波，分别具有闭环线的电感器。通过闭环线减少互感造成的干扰。例如，在调制器电路中采用电感器的情况下，围绕电感器的外周设置闭环线。

6. 发明授权

US08502614B2 Variable inductor, and oscillator and communication system using the same 失效
标题翻译：可变电感器，振荡器和通信系统使用相同
公开(公告)号：US08502614B2
公开(公告)日：2013-08-06
申请号：US13004379
申请日：2011-01-11
申请人： Takahiro Nakamura , Toru Masuda
发明人： Takahiro Nakamura , Toru Masuda
IPC分类号： H03C3/02 , H03B5/08
CPC分类号： H03B5/1228 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B5/1256 , H03B5/1293 , H03B5/1296 , H03B2201/0208 , H03B2201/0216 , H03H5/12 , H03J2200/10
摘要： There are provided a variable inductor with little degradation in quality factor, and an oscillator and a communication system using the variable inductor. An inductance controller comprising a reactance device with a variable device value, such as, for example, a variable capacitor, is connected to a secondary inductor, magnetically coupled to a primary inductor through mutual inductance. The inductance controller is provided with an inductance control terminal for receiving a control signal for controlling capacitance of the variable capacitor. Inductance of the primary inductor is varied by varying the capacitance by the control signal.
摘要翻译：提供了可变电感器，质量因子几乎没有劣化，以及使用可变电感器的振荡器和通信系统。包括具有可变器件值的电抗器件（例如可变电容器）的电感控制器连接到次级电感器，其通过互感磁耦合到初级电感器。电感控制器设置有用于接收用于控制可变电容器的电容的控制信号的电感控制端子。通过控制信号改变电容来改变初级电感器的电感。

7. 发明授权

US07902934B2 Variable inductor, and oscillator and communication system using the same 有权
标题翻译：可变电感器，振荡器和通信系统使用相同
公开(公告)号：US07902934B2
公开(公告)日：2011-03-08
申请号：US11268643
申请日：2005-11-08
申请人： Takahiro Nakamura , Toru Masuda
发明人： Takahiro Nakamura , Toru Masuda
IPC分类号： H03B5/08
CPC分类号： H03B5/1228 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B5/1256 , H03B5/1293 , H03B5/1296 , H03B2201/0208 , H03B2201/0216 , H03H5/12 , H03J2200/10
摘要： There are provided a variable inductor with little degradation in quality factor, and an oscillator and a communication system using the variable inductor. An inductance controller comprising a reactance device with a variable device value, such as, for example, a variable capacitor, is connected to a secondary inductor, magnetically coupled to a primary inductor through mutual inductance. The inductance controller is provided with an inductance control terminal for receiving a control signal for controlling capacitance of the variable capacitor. Inductance of the primary inductor is varied by varying the capacitance by the control signal.
摘要翻译：提供了可变电感器，质量因子几乎没有劣化，以及使用可变电感器的振荡器和通信系统。包括具有可变器件值的电抗器件（例如可变电容器）的电感控制器连接到次级电感器，其通过互感磁耦合到初级电感器。电感控制器设置有用于接收用于控制可变电容器的电容的控制信号的电感控制端子。通过控制信号改变电容来改变初级电感器的电感。

8. 发明申请

US20090221259A1 ACTIVE MIXER CIRCUIT AND A RECEIVER CIRCUIT OR A MILLIMETER-WAVE COMMUNICATION UNIT USING IT 有权
标题翻译：主动混频器电路和接收器电路或使用其的微波通信单元
公开(公告)号：US20090221259A1
公开(公告)日：2009-09-03
申请号：US12370159
申请日：2009-02-12
申请人： Nobuhiro SHIRAMIZU , Toru Masuda , Takahiro Nakamura , Katsuyoshi Washio , Masamichi Tanabe
发明人： Nobuhiro SHIRAMIZU , Toru Masuda , Takahiro Nakamura , Katsuyoshi Washio , Masamichi Tanabe
IPC分类号： H04B1/16
CPC分类号： H04B1/28 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D2200/0023 , H03D2200/0043
摘要： The present invention provides a semiconductor integrated circuit including an active mixer circuit that is operated at low voltage, low noise, and low power consumption. It includes a transconductance amplifier, a transformer, and a multiplier, connects a transformer between the transconductance amplifier and the multiplier, and separates between the transconductance amplifier and the multiplier with respect to direct current inside the transformer. Further, each of the tranconductance amplifier and the multiplier is configured of transistors that are single-stacked between the supply voltage terminal and ground terminal.
摘要翻译：本发明提供一种半导体集成电路，包括以低电压，低噪声和低功耗工作的有源混频器电路。它包括跨导放大器，变压器和乘法器，连接跨导放大器和乘法器之间的变压器，并且相对于变压器内部的直流电流在跨导放大器和乘法器之间分离。此外，跨导放大器和乘法器中的每一个由在电源电压端子和接地端子之间单层堆叠的晶体管构成。

9. 发明授权

US07518458B2 Oscillator and data processing equipment using the same and voltage control oscillator and data processing equipment using voltage control oscillator 失效
标题翻译：振荡器和数据处理设备使用相同的压控振荡器和数据处理设备使用压控振荡器
公开(公告)号：US07518458B2
公开(公告)日：2009-04-14
申请号：US11594102
申请日：2006-11-08
申请人： Takahiro Nakamura , Toru Masuda , Tomomitsu Kitamura , Norio Hayashi , Hiroshi Mori
发明人： Takahiro Nakamura , Toru Masuda , Tomomitsu Kitamura , Norio Hayashi , Hiroshi Mori
IPC分类号： H03B5/08
CPC分类号： H03J3/20 , H03B5/1215 , H03B5/1218 , H03B5/1228 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B5/1265 , H03B5/1293 , H03B5/1296 , H03B2201/0208 , H03B2201/0216 , H03D3/007 , H03J2200/10
摘要： An LC resonant circuit of an oscillator includes a parallel circuit of an inductor, a first fine adjustable capacitor and a first capacitor bank, and a series circuit of a second fine adjustable capacitor and a second capacitor bank. A frequency conversion gain of the oscillator is the sum of a frequency conversion gain of the oscillator based upon the first fine adjustable capacitor which decreases according to increase of a capacitance value of the capacitor bank and a frequency conversion gain based upon the second fine adjustable capacitor which increases according to increase of a capacitance value of the second capacitor bank. Accordingly, an LC resonant circuit for an oscillator with reduced fluctuation of a frequency conversion gain, and an oscillator and a data processing equipment using the same are provided.
摘要翻译：振荡器的LC谐振电路包括电感器的并联电路，第一微调可调电容器和第一电容器组，以及第二精细可调电容器和第二电容器组的串联电路。振荡器的变频增益是基于根据电容器组的电容值的增加而减小的第一微调电容器的振荡器的变频增益和基于第二微调电容器的频率转换增益的和其根据第二电容器组的电容值的增加而增加。因此，提供了一种用于具有降低的变频增益波动的振荡器的LC谐振电路，以及使用其的振荡器和数据处理设备。

10. 发明申请

US20080174375A1 VOLTAGE-CONTROLLED OSCILLATOR AND COMMUNICATION DEVICE USING THE SAME 有权
标题翻译：电压控制振荡器和使用该振荡器的通信装置
公开(公告)号：US20080174375A1
公开(公告)日：2008-07-24
申请号：US11951178
申请日：2007-12-05
申请人： Takahiro NAKAMURA , Toru Masuda
发明人： Takahiro NAKAMURA , Toru Masuda
IPC分类号： H03B1/00 , H03B5/12 , H04B1/40
CPC分类号： H03B5/1228 , H03B5/1209 , H03B5/1231 , H03B5/124 , H03B2201/0208
摘要： The present invention provides a voltage-controlled oscillator operating from microwave frequencies to millimeter wave frequencies, which is capable of outputting a large power with an output impedance thereof being set up to a predetermined level at low power consumption, and a communication device using the same. The voltage-controlled oscillator includes: a differential alternating current generator including a resonator capable of varying resonant frequency according to an input control voltage, for generating a pair of differential alternating current each of which having the same frequency with the resonant frequency of the resonator yet being 180 degrees out of phase in mutual; a pair of transformers each of which having a primary inductor and a secondary inductor, for conducting the alternating current to the primary inductor; and an impedance-matching circuit connected to the secondary inductor of the transformers, wherein an output signal is outputted from the secondary inductors of the transformers.
摘要翻译：本发明提供了一种从微波频率到毫米波频率工作的压控振荡器，其能够输出大功率，其输出阻抗在低功耗下被设置到预定电平，以及使用该功率的通信装置。压控振荡器包括：差分交流发电机，包括能够根据输入控制电压改变谐振频率的谐振器，用于产生一对差分交流电流，每个差分交流电流具有与谐振器的谐振频率相同的频率互相180度异相; 一对变压器，每个变压器具有用于将交流电流传导到初级电感器的初级电感器和次级电感器; 以及连接到变压器的次级电感器的阻抗匹配电路，其中输出信号从变压器的次级电感器输出。

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