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1. 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。

2. 发明申请

US20110105053A1 VARIABLE INDUCTOR, AND OSCILLATOR AND COMMUNICATION SYSTEM USING THE SAME 失效
标题翻译：可变电感器，振荡器和使用它的通信系统
公开(公告)号：US20110105053A1
公开(公告)日：2011-05-05
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： H04W88/02
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。

3. 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。

4. 发明授权

US07826814B2 Frequency synthesizer 失效
标题翻译：频率合成器
公开(公告)号：US07826814B2
公开(公告)日：2010-11-02
申请号：US11759716
申请日：2007-06-07
申请人： Toru Masuda
发明人： Toru Masuda
IPC分类号： H04B7/00
CPC分类号： H03B21/02
摘要： A frequency synthesizer comprises: a single-tone signal generator which outputs signals of a single frequency; a frequency multiplier which generates one or more intermediate signals having different frequencies based on frequencies of input signals and outputs the same as output signals; a frequency selector; a mixer; and a frequency synthesizer control circuit which includes a frequency synthesizer control terminal, wherein an output of the single-tone signal generator is set as an input of the frequency multiplier, one or more outputs of the frequency multiplier are set as one or more inputs of the frequency selector, an output of the frequency selector and one output of the outputs of the frequency multiplier are set as first and second inputs of the mixer, and an output of the mixer is set as an output of the frequency synthesizer.
摘要翻译：频率合成器包括：输出单频信号的单音信号发生器; 频率乘法器，其基于输入信号的频率产生具有不同频率的一个或多个中间信号，并输出与输出信号相同的频率倍增器; 频率选择器搅拌机以及频率合成器控制电路，其包括频率合成器控制端子，其中单音信号发生器的输出被设置为倍频器的输入，倍频器的一个或多个输出被设置为频率选择器，频率选择器的输出和倍频器的输出的一个输出被设置为混频器的第一和第二输入，并且混频器的输出被设置为频率合成器的输出。

5. 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。

6. 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。

7. 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。

8. 发明申请

US20050077930A1 Frequency generator and communication system 失效
标题翻译：频率发生器和通讯系统
公开(公告)号：US20050077930A1
公开(公告)日：2005-04-14
申请号：US10893438
申请日：2004-07-19
申请人： Toru Masuda
发明人： Toru Masuda
IPC分类号： H03B19/14 , H03B19/00 , H03B27/00 , H03D7/14 , H03H11/26
CPC分类号： H03B19/00 , H03D7/14
摘要： The object of the invention is to provide a frequency generator which is composed of an oscillator and a frequency doubler and in which difference in amplitude between differential outputs of the frequency doubler can be equalized at low power consumption without adjustment. To achieve the object, the amplitude of differential outputs of the frequency doubler is detected and the delay time of a variable delay circuit is controlled. Owing to this configuration, in case a frequency of the oscillator varies or in case delay time by the delay circuit used in the frequency doubler varies by process variation and others even if the frequency is fixed, the amplitude of the differential outputs of the frequency doubler can be also equalized in the frequency generator.
摘要翻译：本发明的目的是提供一种由振荡器和倍频器组成的频率发生器，其中倍频器的差分输出之间的幅度差可以在低功耗下相等而不调整。为了实现该目的，检测倍频器的差分输出的幅度，并且控制可变延迟电路的延迟时间。由于这种配置，在振荡器的频率变化的情况下，或者即使频率固定，在倍频器中使用的延迟电路的延迟时间也随着工艺变动等而变化，倍频器的差分输出的幅度也可以在频率发生器中均衡。

9. 发明授权

US06304357B1 Optical receiver 失效
标题翻译：光接收机
公开(公告)号：US06304357B1
公开(公告)日：2001-10-16
申请号：US09041973
申请日：1998-03-13
申请人： Kenichi Ohhata , Ryoji Takeyari , Toru Masuda , Katsuyoshi Washio , Yasushi Hatta
发明人： Kenichi Ohhata , Ryoji Takeyari , Toru Masuda , Katsuyoshi Washio , Yasushi Hatta
IPC分类号： H04B1006
CPC分类号： H04B10/6932 , H04B10/6933 , H04B10/695
摘要： An optical receiver generates a voltage signal having a predetermined swing from a current signal, and feeds the voltage signal to a decision circuit. An optical receiving element receives the input optical signal, converts the optical signal to a current signal, and provides the current signal to a preamplifier, which converts the input current signal into a voltage signal. The voltage signal is input to an amplifier having a limiting function, which linearly amplifies the voltage signal when the swing of the voltage signal is smaller than a predetermined value, and limitedly amplifies the voltage signal when the voltage signal is greater than the predetermined value. An automatic-gain-control amplifier receives the output from the amplifier with the limiting function, and amplifies the input voltage signal to a voltage signal having a constant swing. The decision circuit receives the output of the automatic-gain-control amplifier and decides the binary nature of the voltage, and thus of the input optical signal.
摘要翻译：光接收器从电流信号产生具有预定摆幅的电压信号，并将电压信号馈送到判定电路。光接收元件接收输入光信号，将光信号转换为电流信号，并将电流信号提供给前置放大器，将前置放大器转换成电压信号。电压信号被输入到具有限制功能的放大器，当电压信号的摆动小于预定值时线性放大电压信号，并且当电压信号大于预定值时有限地放大电压信号。自动增益控制放大器以限制功能接收来自放大器的输出，并将输入电压信号放大到具有恒定摆幅的电压信号。决定电路接收自动增益控制放大器的输出，并确定电压的二进制特性，从而确定输入光信号的二进制特性。

10. 发明授权

US5182550A Inter-network connection system 失效
标题翻译：网络间连接系统
公开(公告)号：US5182550A
公开(公告)日：1993-01-26
申请号：US563673
申请日：1990-08-01
申请人： Toru Masuda , Akinori Kamijo
发明人： Toru Masuda , Akinori Kamijo
IPC分类号： H04L12/00 , H04Q3/00
CPC分类号： H04L12/00 , H04Q3/0025
摘要： An inter-network connection system wherein a local signaling network including gateway offices of at least two signaling networks to be interconnected is configured between the signaling networks to be interconnected, and the inter-network connection is carried out through the local signaling network.
摘要翻译：一种网络间连接系统，其中包括要互连的至少两个信令网络的网关站的本地信令网络被配置在要互连的信令网络之间，并且通过本地信令网络执行所述网间连接。

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