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1. 发明申请

US20090104951A1 WIRELESS CIRCUIT DEVICE 有权
标题翻译：无线电路设备
公开(公告)号：US20090104951A1
公开(公告)日：2009-04-23
申请号：US12063889
申请日：2006-10-13
申请人： Toshifumi Nakatani , Hiroyuki Nakamura , Kaoru Ishida
发明人： Toshifumi Nakatani , Hiroyuki Nakamura , Kaoru Ishida
IPC分类号： H04M1/00
CPC分类号： H04W52/028 , Y02D70/142
摘要： A current control circuit (5) recognizes whether or not a transmission signal is transmitted based on a control signal outputted from a transmission signal control circuit (4). When the transmission signal is transmitted, the current control circuit (5) controls a current flowing into a reception circuit (3) in accordance with control information representing any of at least two modes where the transmission signal is transmitted. When no transmission signal is transmitted, the current control circuit (5) controls the current flowing into the reception circuit (3) in accordance with control information representing a mode where no transmission signal is transmitted.
摘要翻译：电流控制电路（5）基于从发送信号控制电路（4）输出的控制信号来识别发送信号是否被发送。当传输信号被发送时，电流控制电路（5）根据表示传输信号发送的至少两种模式中的任何一种的控制信息来控制流入接收电路（3）的电流。当不发送发送信号时，电流控制电路（5）根据表示不发送发送信号的模式的控制信息来控制流入接收电路（3）的电流。

2. 发明授权

US07957703B2 Wireless circuit device 有权
标题翻译：无线电路设备
公开(公告)号：US07957703B2
公开(公告)日：2011-06-07
申请号：US12063889
申请日：2006-10-13
申请人： Toshifumi Nakatani , Hiroyuki Nakamura , Kaoru Ishida
发明人： Toshifumi Nakatani , Hiroyuki Nakamura , Kaoru Ishida
IPC分类号： H04B1/46
CPC分类号： H04W52/028 , Y02D70/142
摘要： A current control circuit (5) recognizes whether or not a transmission signal is transmitted based on a control signal outputted from a transmission signal control circuit (4). When the transmission signal is transmitted, the current control circuit (5) controls a current flowing into a reception circuit (3) in accordance with control information representing any of at least two modes where the transmission signal is transmitted. When no transmission signal is transmitted, the current control circuit (5) controls the current flowing into the reception circuit (3) in accordance with control information representing a mode where no transmission signal is transmitted.
摘要翻译：电流控制电路（5）基于从发送信号控制电路（4）输出的控制信号来识别发送信号是否被发送。当传输信号被发送时，电流控制电路（5）根据表示传输信号发送的至少两种模式中的任何一种的控制信息来控制流入接收电路（3）的电流。当不发送发送信号时，电流控制电路（5）根据表示不发送发送信号的模式的控制信息来控制流入接收电路（3）的电流。

3. 发明授权

US07176768B2 Balanced high-frequency device and balanced high-frequency circuit using the same 有权
标题翻译：平衡高频设备和平衡高频电路使用相同
公开(公告)号：US07176768B2
公开(公告)日：2007-02-13
申请号：US11059918
申请日：2005-02-17
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H7/42 , H03H9/00
CPC分类号： H03H9/0038 , H03H7/42 , H03H7/425 , H03H9/0028 , H03H9/0042 , H03H9/14588 , H03H11/32
摘要： A balanced high-frequency device includes a balanced element; at least one balanced terminal connected to the balanced element; a phase circuit having at least first, second, and third impedance elements, and electrically connected between the balanced element and the balanced terminal. The first impedance element and the second impedance element are connected between the balanced terminals in series, the connection point between the first impedance element and the second impedance element is grounded through the third impedance element, a series resonant circuit is formed by the first impedance element and the third impedance element. A series resonant circuit is formed by the second impedance element and the third impedance element, and an impedance to a differential signal component in the passing band of the balanced elements of the first and second impedance elements is set so as to increase to the ground plane.
摘要翻译：平衡式高频装置包括平衡元件; 连接到所述平衡元件的至少一个平衡端子; 具有至少第一，第二和第三阻抗元件的相电路，并且电连接在所述平衡元件和所述平衡端子之间。第一阻抗元件和第二阻抗元件串联在平衡端子之间，第一阻抗元件和第二阻抗元件之间的连接点通过第三阻抗元件接地，串联谐振电路由第一阻抗元件和第三阻抗元件。串联谐振电路由第二阻抗元件和第三阻抗元件形成，并且对第一和第二阻抗元件的平衡元件的通带中的差分信号分量的阻抗设定为增加到接地面。

4. 发明授权

US06900705B2 Balanced high-frequency device and balance-characteristics improving method and balanced high-frequency circuit using the same 有权
标题翻译：平衡高频器件和平衡特性改进方法和平衡高频电路使用相同
公开(公告)号：US06900705B2
公开(公告)日：2005-05-31
申请号：US10390287
申请日：2003-03-17
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H7/38 , H03H7/42 , H03H9/00 , H03H9/64 , H03H11/28 , H03H11/32 , H03H5/00 , H03F3/04
CPC分类号： H03H9/0038 , H03H7/42 , H03H7/425 , H03H9/0028 , H03H9/0042 , H03H9/14588 , H03H11/32
摘要： A balanced high-frequency device is constituted by a balanced device and a phase circuit. The input side of the balanced device is connected to an input terminal IN serving as an unbalanced input/output terminal and the output side of it is connected to output terminals OUT1 and OUT2 serving as balanced input/output terminals. Moreover, the phase circuit is connected between the output terminals.
摘要翻译：平衡式高频装置由平衡装置和相位电路构成。平衡装置的输入侧连接到用作不平衡输入/输出端子的输入端子IN，并且其输出端连接到用作平衡输入/输出端子的输出端OUT1和OUT2。此外，相电路连接在输出端子之间。

5. 发明申请

US20050212383A1 Balanced high-frequency device and balanced high-frequency circuit using the same 有权
标题翻译：平衡高频设备和平衡高频电路使用相同
公开(公告)号：US20050212383A1
公开(公告)日：2005-09-29
申请号：US11059918
申请日：2005-02-17
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H7/38 , H03H7/42 , H03H9/00 , H03H9/64 , H03H11/28 , H03H11/32 , H01L41/08
CPC分类号： H03H9/0038 , H03H7/42 , H03H7/425 , H03H9/0028 , H03H9/0042 , H03H9/14588 , H03H11/32
摘要： A balanced high-frequency device includes a balanced element; at least one balanced terminal connected to the balanced element; a phase circuit having at least first, second, and third impedance elements, and electrically connected between the balanced element and the balanced terminal. The first impedance element and the second impedance element are connected between the balanced terminals in series, the connection point between the first impedance element and the second impedance element is grounded through the third impedance element, a series resonant circuit is formed by the first impedance element and the third impedance element. A series resonant circuit is formed by the second impedance element and the third impedance element, and an impedance to a differential signal component in the passing band of the balanced elements of the first and second impedance elements is set so as to increase to the ground plane.
摘要翻译：平衡式高频装置包括平衡元件; 连接到所述平衡元件的至少一个平衡端子; 具有至少第一，第二和第三阻抗元件的相电路，并且电连接在所述平衡元件和所述平衡端子之间。第一阻抗元件和第二阻抗元件串联在平衡端子之间，第一阻抗元件和第二阻抗元件之间的连接点通过第三阻抗元件接地，串联谐振电路由第一阻抗元件和第三阻抗元件。串联谐振电路由第二阻抗元件和第三阻抗元件形成，并且对第一和第二阻抗元件的平衡元件的通带中的差分信号分量的阻抗设定为增加到接地面。

6. 发明授权

US07224240B2 Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus 有权
标题翻译：平衡高频滤波器，天线双工器，平衡高频电路和通信设备
公开(公告)号：US07224240B2
公开(公告)日：2007-05-29
申请号：US11078793
申请日：2005-03-11
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H9/68 , H03H7/42
CPC分类号： H03H9/0042 , H03H7/42 , H03H9/0038 , H03H9/14588
摘要： With an antenna duplexer having balanced terminals, there has been a problem that the amount of leakage of common-mode signal components in the balanced terminals is large. A balanced high-frequency filter designed to solve this problem comprises a balanced high-frequency element and a phase-shifting circuit which includes a transmission line and placed between output terminals, and which is series resonance circuit having a length set to λT/2 (λT: the wavelength at a frequency in a transmission frequency band) and capable of resonating with common-mode signal components at a predetermined frequency.
摘要翻译：对于具有平衡端子的天线双工器，存在平衡端子中的共模信号分量的泄漏量大的问题。设计用于解决这个问题的平衡式高频滤波器包括一个平衡的高频元件和一个包括传输线并置于输出端之间的移相电路，并且是串联谐振电路，其长度设定为λ< Tλ/ 2（λT是发送频带中的频率处的波长），并且能够以预定频率与共模信号分量谐振。

7. 发明申请

US20050242900A1 Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus 有权
标题翻译：平衡高频滤波器，天线双工器，平衡高频电路和通信设备
公开(公告)号：US20050242900A1
公开(公告)日：2005-11-03
申请号：US11078793
申请日：2005-03-11
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H5/00 , H03H7/18 , H03H7/38 , H03H9/00 , H03H11/16 , H03H11/32
CPC分类号： H03H9/0042 , H03H7/42 , H03H9/0038 , H03H9/14588
摘要： With an antenna duplexer having balanced terminals, there has been a problem that the amount of leakage of common-mode signal components in the balanced terminals is large. A balanced high-frequency filter designed to solve this problem comprises a balanced high-frequency element and a phase-shifting circuit which includes a transmission line and placed between output terminals, and which is series resonance circuit having a length set to λT/2 (λT: the wavelength at a frequency in a transmission frequency band) and capable of resonating with common-mode signal components at a predetermined frequency.
摘要翻译：对于具有平衡端子的天线双工器，存在平衡端子中的共模信号分量的泄漏量大的问题。设计用于解决这个问题的平衡式高频滤波器包括一个平衡的高频元件和一个包括传输线并置于输出端之间的移相电路，并且是串联谐振电路，其长度设定为λ< Tλ/ 2（λT是发送频带中的频率处的波长），并且能够以预定频率与共模信号分量谐振。

8. 发明申请

US20100189197A1 RADIO RECEIVING DEVICE 有权
标题翻译：无线接收设备
公开(公告)号：US20100189197A1
公开(公告)日：2010-07-29
申请号：US11916241
申请日：2006-06-15
申请人： Toshifumi Nakatani
发明人： Toshifumi Nakatani
IPC分类号： H04B1/26 , H04L27/06
CPC分类号： H04L27/3809 , H04B1/28 , H04L27/3836
摘要： A radio receiving apparatus capable of making compensation for both amplitude variations and phase variations and of suppressing image interference in a short period of time is provided.A correction value calculation section (110) combines a signal, obtained by multiplying a first digital signal by an amplitude correction candidate value and rotating the phase of the first digital signal, with a signal obtained by multiplying a second digital signal by a multiplicative inverse of the amplitude correction candidate value and performing, for the second digital signal, phase rotation which is in a quadrature relationship to phase rotation performed for the first digital signal, so as to obtain a first combined signal, obtain an inflection point of the first combined signal, and input, to a demodulation section (120), the amplitude correction candidate value and a phase correction candidate value, which correspond to the inflection point, as an amplitude correction value and a phase correction value, respectively. The demodulation section (120) makes compensation for the amplitudes and the phases and suppresses image interference, based on the amplitude correction value and the phase correction value.
摘要翻译：提供能够在短时间内对振幅变化和相位变化进行补偿并抑制图像干扰的无线接收装置。校正值计算部分（110）将通过将第一数字信号乘以振幅校正候选值并将第一数字信号的相位旋转获得的信号与通过将第二数字信号乘以第二数字信号的乘法反相获得的信号振幅校正候选值，并且对于第二数字信号执行与第一数字信号相位旋转成正交关系的相位旋转，以获得第一组合信号，获得第一组合信号的拐点并且分别将对应于拐点的幅度校正候选值和相位校正候选值分别输入到解调部分（120）作为振幅校正值和相位校正值。解调部（120）根据振幅校正值和相位校正值对振幅和相位进行补偿，抑制图像干扰。

9. 发明授权

US07710181B2 Variable attenuator and wireless communication device 有权
标题翻译：可变衰减器和无线通信设备
公开(公告)号：US07710181B2
公开(公告)日：2010-05-04
申请号：US12193114
申请日：2008-08-18
申请人： Toshifumi Nakatani , Takahito Miyazaki
发明人： Toshifumi Nakatani , Takahito Miyazaki
IPC分类号： H01P1/22
CPC分类号： H03H11/245
摘要： A variable attenuator, used with high frequency, provides large variable attenuation per stage. The variable attenuator includes: a MOSFET having a gate, a drain, a source, and a body; an attenuation control circuit; and a temperature characteristics compensation circuit. The attenuation control circuit supplies a control voltage to the gate, the drain, and the source. The temperature characteristics compensation circuit supplies a temperature compensation voltage to the body. An input terminal and an output terminal are connected to the drain and the source of the MOSFET. The temperature characteristics compensation circuit, in accordance with an operating temperature of the MOSFET, controls a voltage to be supplied to the body and adjusts, based on a relation between a body voltage and a gate voltage, a resistance value of a current flowing between the input terminal and the output terminal.
摘要翻译：可变衰减器，高频率使用，每级可提供大的可变衰减。可变衰减器包括：具有栅极，漏极，源极和主体的MOSFET; 衰减控制电路; 和温度特性补偿电路。衰减控制电路向栅极，漏极和源极提供控制电压。温度特性补偿电路向身体提供温度补偿电压。输入端子和输出端子连接到MOSFET的漏极和源极。温度特性补偿电路根据MOSFET的工作温度，控制向身体供给的电压，并根据体电压与栅极电压之间的关系，调整电流值输入端子和输出端子。

10. 发明授权

US07383034B2 Frequency conversion circuit, modulation circuit, polar modulation transmitting circuit, quadrature modulation transmitting circuit, communication instrument, and frequency conversion method 有权
标题翻译：变频电路，调制电路，极坐标调制发射电路，正交调制发射电路，通信仪器和变频方式
公开(公告)号：US07383034B2
公开(公告)日：2008-06-03
申请号：US11140381
申请日：2005-05-27
申请人： Takahiro Shima , Toshifumi Nakatani
发明人： Takahiro Shima , Toshifumi Nakatani
IPC分类号： H04B1/26
CPC分类号： H04B1/109 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/165
摘要： A frequency conversion circuit is provided capable of suppressing noise converted from about a frequency twice as large as a local signal to a reception band frequency, which performs modulation by mixing an input signal with a local signal. The frequency conversion circuit includes a first transistor whose base is electrically connected with one of a first input terminal pair inputted with the input signal; a second transistor whose base is electrically connected with the other of the first input terminal pair; third and fourth transistors whose emitters are electrically connected respectively with a collector of the first transistor; fifth and sixth transistors whose emitters are electrically connected respectively with a collector of the second transistor; and a differential noise suppression circuit provided between the collector of the first transistor and the collector of the second transistor. The differential noise suppression circuit includes at least one capacitor, which suppresses a differential noise component of a frequency twice as large as a local signal frequency without repeating charging or discharging of the capacitor with at least the local signal frequency.
摘要翻译：提供一种频率转换电路，其能够抑制从本地信号的大约两倍的频率转换为接收频带频率的噪声，其通过将输入信号与本地信号混合来执行调制。频率转换电路包括第一晶体管，其基极与输入信号输入的第一输入端子对之一电连接; 第二晶体管，其基极与第一输入端子对中的另一个电连接; 第三和第四晶体管，其发射极分别与第一晶体管的集电极电连接; 第五和第六晶体管，其发射极分别与第二晶体管的集电极电连接; 以及差分噪声抑制电路，设置在第一晶体管的集电极和第二晶体管的集电极之间。差分噪声抑制电路包括至少一个电容器，其抑制了与本地信号频率两倍的频率的差分噪声分量，而不用至少具有本地信号频率的电容器的充电或放电。

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