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71. 发明专利

JP4784524B2 Phase adjustment circuit, interference signal elimination circuit, and a radio receiving apparatus 有权
公开(公告)号：JP4784524B2
公开(公告)日：2011-10-05
申请号：JP2007025404
申请日：2007-02-05
申请人：ソニー株式会社
发明人：康弘宮本
IPC分类号： H04B1/26 , H03D7/18 , H03H11/22 , H04L27/38

72. 发明专利

JP4763206B2 Poly-phase filter 有权
公开(公告)号：JP4763206B2
公开(公告)日：2011-08-31
申请号：JP2001548523
申请日：2000-12-22
申请人：テレフオンアクチーボラゲットエルエムエリクソン(パブル)
发明人：エッシンク、ベレンド、ヘンドリク
IPC分类号： H03H11/08 , H03H11/22 , H03H11/34
CPC分类号： H03H11/22 , H03H2011/0494

73. 发明专利

JP2011061383A Active polyphase filter 有权
标题翻译：活性多相过滤器
公开(公告)号：JP2011061383A
公开(公告)日：2011-03-24
申请号：JP2009207378
申请日：2009-09-08
申请人： Denso Corp , Toyota Central R&D Labs Inc , 株式会社デンソー , 株式会社豊田中央研究所
发明人： UDA NAONORI , MIYAKE YASUYUKI
IPC分类号： H03H11/22 , H03F1/32 , H03F3/45
CPC分类号： H03H7/21 , H03H2007/0192
摘要： PROBLEM TO BE SOLVED: To provide an active polyphase filter wherein distortion is reduced even when large power is inputted. SOLUTION: NPN transistors Q 1 , Q 2 , Q 4 , Q 5 and NPN transistors Q 6 , Q 7 , Q 4 , Q 5 respectively form a translinear loop. NPN transistors Q 2 , Q 3 and NPN transistors Q 7 , Q 8 respectively form a current mirror circuit. Thus, both the difference between the collector currents of the NPN transistors Q 1 , Q 3 and the difference between the collector currents of the NPN transistors Q 6 , Q 8 are equal to the current of a balanced high-frequency input. By setting two sets of differential inputs like these to be four inputs of a polyphase filter portion 10, differential outputs where even-numbered components are suppressed and phases are different by π/2 can be obtained from the four outputs of the polyphase filter portion 10. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种活性多相滤波器，其中即使在输入大功率时，失真也减小。＆lt; P＆gt;解决方案：NPN晶体管Q 1，Q 2 ，Q 4 ，Q 5 和NPN晶体管Q 分别形成了一个跨线性回路.S SB 6 ，Q 7 ，Q 4 ，Q 5 NPN晶体管Q 3，Q SB 3和NPN晶体管Q SB 7分别形成电流镜电路。因此，NPN晶体管的集电极电流之间的差异与第n个NPN晶体管的集电极电流之间的差异两者之和< SB>，Q 8 等于平衡高频输入的电流。通过将这样的两组差分输入设置为多相滤波器部分10的四个输入，可以从多相滤波器部分10的四个输出获得其中偶数分量被抑制并且相位不同π/ 2的差分输出版权所有（C）2011，JPO＆INPIT

74. 发明专利

JP4319408B2 Lc controllable oscillator, quadrature oscillator, and communication device 有权
公开(公告)号：JP4319408B2
公开(公告)日：2009-08-26
申请号：JP2002564836
申请日：2002-02-04
申请人：エヌエックスピービーヴィ
发明人：ミハイアーテーサンデュレアヌ , エティエネアールゲーデュガスト
IPC分类号： H03K3/0231 , H03L1/02 , H03B5/12 , H03H11/22 , H03K3/354 , H04B1/26
CPC分类号： H03H11/22 , H03L1/022

75. 发明专利

JP2008078995A Phase-shift circuit 审中-公开
标题翻译：相移电路
公开(公告)号：JP2008078995A
公开(公告)日：2008-04-03
申请号：JP2006255763
申请日：2006-09-21
申请人： Nec Electronics Corp , Necエレクトロニクス株式会社
发明人： KIMURA KATSUHARU
IPC分类号： H03H11/16 , H03H11/04 , H03H11/22 , H03L7/00
CPC分类号： H03H11/16 , H03L7/0812 , H03L7/085 , H03L7/093
摘要： PROBLEM TO BE SOLVED: To provide a phase shifting circuit which always controls a phase shift amount constant, reduces an influence in fluctuation of supply voltage, etc. and reduces an influence of element variation. SOLUTION: The phase shifting circuit has a PLL loop in which a reference frequency signal is input, distributed into two, one signal becomes one input of a phase comparator 102, the other signal becomes the other input of the phase comparator 102 after its phase is shifted via a phase shifter 101, output of the phase comparator 102 is input in one input terminal of a differential amplifier 104 via a loop filter (LPF) 103 and the phase shift amount of the phase shifter 101 is controlled by an output signal of the differential amplifier 104 and the phase shift amount in the phase shifter 101 is determined by reference voltage impressed to the other input terminal of the differential amplifier 104. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供总是控制相移量常数的移相电路，减少电源电压波动的影响等，并且减小元件变化的影响。解决方案：移相电路具有PLL环路，其中输入参考频率信号，分配到两个信号中，一个信号变为相位比较器102的一个输入，另一个信号在相位比较器102的另一个输入之后变为相位比较器102的另一个输入其相位通过移相器101移位，相位比较器102的输出经由环路滤波器（LPF）103输入到差分放大器104的一个输入端，并且移相器101的相移量由输出差分放大器104的信号和移相器101中的相移量由施加到差分放大器104的另一输入端的参考电压确定。（C）2008，JPO和INPIT

76. 发明专利

JP2005203982A Polyphase filter 审中-公开
标题翻译：多相滤波器
公开(公告)号：JP2005203982A
公开(公告)日：2005-07-28
申请号：JP2004007217
申请日：2004-01-14
申请人： Sony Corp , ソニー株式会社
发明人： KATAKURA MASAYUKI , TODA ASAKO
IPC分类号： H03H7/18 , H03H7/21 , H03H11/04 , H03H11/12 , H03H11/22 , H04L27/00
摘要： PROBLEM TO BE SOLVED: To realize a polyphase filter by using minimum capacity elements and active circuits, and a smaller number of resistance elements.
SOLUTION: The polyphase filter is equipped with 1st and 2nd networks, including 1st and 2nd input/output terminals, buffer circuits, capacitors, and resistances. The 1st network 1 shows low-pass characteristics to a signal from a 1st input terminal and high-pass signal to a signal from a 2nd input terminal. The 2nd network 2 shows high-pass characteristics to the signal from the 1st input terminal and low-pass characteristics to the signal from the 2nd input terminal. One of transfer functions, showing the low-pass characteristics or high-pass characteristics of the 1st network 1, has the same polarity as with a transfer function, showing the low-pass characteristics or high-pass characteristics of the 2nd network 2, and the other transfer function of the 1st network has a polarity inverted from the transfer function of the 2nd network.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过使用最小容量元件和有源电路以及更少数量的电阻元件来实现多相滤波器。解决方案：多相滤波器配备有第一和第二网络，包括第一和第二输入/输出端子，缓冲电路，电容器和电阻。第一网络1示出了对来自第一输入端子的信号和来自第二输入端子的信号的高通信号的低通特性。第二网络2显示从第一输入端子的信号和低通特性到来自第二输入端子的信号的高通特性。显示第一网络1的低通特性或高通特性的传递函数之一具有与传递函数相同的极性，示出了第二网络2的低通特性或高通特性，以及第一网络的另一传递函数具有与第二网络的传递函数相反的极性。版权所有（C）2005，JPO＆NCIPI

77. 发明专利

JP3527225B2 Phase blender and multi-phase generator using the same 有权
公开(公告)号：JP3527225B2
公开(公告)日：2004-05-17
申请号：JP2001310518
申请日：2001-10-05
申请人：三星電子株式会社
发明人：大尹沈
IPC分类号： H03H11/22 , H03H11/20 , H03K5/00 , H03K5/13 , H03L7/00 , H03L7/081
CPC分类号： H03L7/0814 , H03K5/13 , H03K2005/00058 , H03K2005/00195 , H03K2005/00286

78. 发明专利

JP2003198329A ACTIVE POLY-PHASE FILTER AMPLIFIER, MIXER CIRCUIT, AND IMAGE REJECTION MIXER 审中-公开
公开(公告)号：JP2003198329A
公开(公告)日：2003-07-11
申请号：JP2001399378
申请日：2001-12-28
申请人： RF CHIPS TECHNOLOGY INC
发明人： IGARASHI SADAO , TSUBOTA HIDETOSHI
IPC分类号： H03D7/14 , H03D7/18 , H03H11/22
摘要： PROBLEM TO BE SOLVED: To provide an image rejection mixer with excellent performance being more stable compared with that of the conventional one, to provide an active poly-phase filter amplifier which is used for a circuit such as the image rejection mixer to improve the performance of the circuit, and also to provide mixer circuits. SOLUTION: The first and the second mixer circuits 13 and 14 are constituted of a Gilbert mixer with base-grounded differential amplifier inserted therein. Then a distortion characteristic is improved and OIP 3 is enhanced. First and second kinds of phase equipment 11 and 12 are constituted by using different types of poly-phase filters. When nonuniformity occurs in a constant number, a deviation in a phase rotation angle in each poly-phase filter is generated in a reverse direction. Thus, an excellent image rejection characteristic is kept concerning nonuniformity in the constant number of circuit elements. COPYRIGHT: (C)2003,JPO

79. 发明专利

JP3399764B2 失效
公开(公告)号：JP3399764B2
公开(公告)日：2003-04-21
申请号：JP796397
申请日：1997-01-20
IPC分类号： H03H11/22 , H03H11/36 , H04B1/3822 , H04B1/40

80. 发明专利

JP2003008399A Phase shifter 审中-公开
标题翻译：相变器
公开(公告)号：JP2003008399A
公开(公告)日：2003-01-10
申请号：JP2002115921
申请日：2002-04-18
申请人： Nec Microsystems Ltd , エヌイーシーマイクロシステム株式会社
发明人： OKAZAKI YUKIO , ISHIHARA HISAYA
IPC分类号： H03H11/16 , H03H7/06 , H03H7/18 , H03H7/21 , H03H11/22
CPC分类号： H03H11/22 , H03H7/21 , H03H2007/0192 , H03H2011/0494
摘要： PROBLEM TO BE SOLVED: To realize a phase shifter of low power consumption using a polyphase filter of a wide band and small amplitude and phase error. SOLUTION: A driving circuit is provided with a voltage/current conversion circuit 1 for outputting a corresponding input current signal Ci by converting the voltage value of an input signal Si to a current value. An RC polyphase filter 2 outputs a corresponding polyphase phase-shifting current signal Co according to the supply of the signal Ci. A loading circuit 3 is provided with a polyphase current/voltage conversion circuit for converting the current value of the signal Co to a voltage value to output an output signal Vo.
摘要翻译：要解决的问题：使用宽带的多相滤波器和小幅度和相位误差来实现低功耗的移相器。解决方案：驱动电路设置有电压/电流转换电路1，用于通过将输入信号Si的电压值转换为电流值来输出相应的输入电流信号Ci。 RC多相滤波器2根据信号Ci的供给输出相应的多相移相电流信号Co。负载电路3设置有用于将信号Co的电流值转换为电压值的多相电流/电压转换电路，以输出输出信号Vo。

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