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11. 发明专利

JP2003174090A SEMICONDUCTOR INTEGRATED CIRCUIT 审中-公开
公开(公告)号：JP2003174090A
公开(公告)日：2003-06-20
申请号：JP2001370152
申请日：2001-12-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKINAMI KOJI , ADACHI HISASHI , ITO JUNJI
IPC分类号： H01L21/822 , H01L27/04 , H03F3/45
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit including a double balanced mixer for achieving ideal operation even when it is grounded on one side with respect to a high frequency signal. SOLUTION: A third differentially paired circuit 13 converts a single-phase high frequency signal from an input terminal 110 to a differential signal and outputs it. A first differentially paired circuit 11 and a second differentially paired circuit 12 mix the differential a signal output from the third differentially paired circuit 13 and an LO signal output from a fourth differentially paired circuit 14. The third differentially paired circuit 13 is disposed in the proximity of input pads 104a, 104b. The impedance characteristics of two lines connecting the third differentially paired circuit 13 to the first and second differentially paired circuits are equal. Thus, a semiconductor integrated circuit is provided that can ideally operate even when it is grounded at one side with respect to a high frequency signal. COPYRIGHT: (C)2003,JPO

12. 发明专利

JP2006352315A FREQUENCY SYNTHESIZER CIRCUIT AND COMMUNICATION APPARATUS 审中-公开
公开(公告)号：JP2006352315A
公开(公告)日：2006-12-28
申请号：JP2005173561
申请日：2005-06-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OHARA JUNJI , MAEDA CHIKO , TAKINAMI KOJI , CHIKUSAWA TAKAYUKI
IPC分类号： H03L7/093
摘要： PROBLEM TO BE SOLVED: To provide a frequency synthesizer circuit capable of obtaining stable response characteristics of a control voltage applied to a voltage-controlled oscillator without affecting a loop band and suppressing frequency variations due to external disturbance caused in an impressed power source. SOLUTION: The frequency synthesizer circuit provided with a reference signal generator 1, a phase comparator 2, charge pump circuit 3, a loop filter 4, the voltage-controlled oscillator 5, and a frequency divider 6 includes: an adder circuit 71 provided with two resistors R711, R712 connected in series; a MOS transistor M701 whose gate is connected to a first output terminal of the loop filter and whose source is connected to one end of the first adder circuit; a MOS transistor M702 whose gate is connected to a second output terminal of the loop filter and whose source is connected to the other end of the adder circuit; and a comparator circuit 72 whose first input terminal is connected to a midpoint of the adder circuit 71, whose second input terminal is connected to a reference voltage source and whose output terminal is connected to the charge pump circuit 3. COPYRIGHT: (C)2007,JPO&INPIT

13. 发明专利

JP2006033803A Voltage-controlled oscillator, and pll circuit and wireless communications apparatus using the same 审中-公开
标题翻译：电压控制振荡器，PLL电路和无线通信装置
公开(公告)号：JP2006033803A
公开(公告)日：2006-02-02
申请号：JP2005164368
申请日：2005-06-03
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： CHIKUSAWA TAKAYUKI , TAKINAMI KOJI , OHARA JUNJI , ADACHI HISASHI
IPC分类号： H03B5/12 , H03L7/099 , H03L7/10
摘要： PROBLEM TO BE SOLVED: To provide a voltage controlled oscillator capable of including superior phase noise characteristics and approximately equal frequency sensitivity, in all bands when a plurality of bands are used to obtain a wide-frequency variable range. SOLUTION: A voltage-controlled oscillator comprises a parallel resonance circuit including an inductor circuit, a variable capacitance circuit, and a high-frequency switching circuit, a negative resistance circuit, a frequency control section, and a frequency tuning sensitivity control section. The frequency control section shifts the band of the oscillation frequency, by controlling ON/OFF of a switching element included in the high-frequency switching circuit. The frequency tuning sensitivity control section adjusts the change rate of the total capacitance of the variable capacitance circuit with respect to a control voltage, depending on the band used. The frequency tuning sensitivity control section is connected to a virtual ground point of a different signal. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种压控振荡器，当使用多个频带以获得宽频率可变范围时，能够在所有频带中包括优异的相位噪声特性和近似相等的频率灵敏度。解决方案：压控振荡器包括并联谐振电路，其包括电感器电路，可变电容电路和高频开关电路，负电阻电路，频率控制部分和频率调谐灵敏度控制部分。频率控制部分通过控制包括在高频切换电路中的开关元件的ON / OFF来移动振荡频率的频带。频率调谐灵敏度控制部根据所使用的频带来调节可变电容电路的总电容相对于控制电压的变化率。频率调谐灵敏度控制部分连接到不同信号的虚拟接地点。版权所有（C）2006，JPO＆NCIPI

14. 发明专利

JP2005287009A Differential voltage controlling oscillator provided with high-frequency switching circuit 审中-公开
标题翻译：具有高频开关电路的差分电压控制振荡器
公开(公告)号：JP2005287009A
公开(公告)日：2005-10-13
申请号：JP2005048990
申请日：2005-02-24
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： CHIKUSAWA TAKAYUKI , TAKINAMI KOJI , ADACHI HISASHI , HIRAOKA YUKIO
IPC分类号： H03B5/08 , H03B5/12
摘要： PROBLEM TO BE SOLVED: To provide a differential voltage controlling oscillator which has good phase noise characteristics and can change an oscillation frequency in a wide frequency range. SOLUTION: The differential voltage controlling oscillator 100 is provided with a parallel resonance circuit 100a and a negative resistance circuit 130 connected in parallel to the parallel resonance circuit 100a. A high-frequency switching circuit 140 includes a first high-frequency signal reducing portion connected between a control voltage terminal 147 and a first switching element 143 and a second high-frequency signal reducing portion connected between the control voltage terminal 147 and a second switching element 144. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种差分电压控制振荡器，其具有良好的相位噪声特性并且可以在宽的频率范围内改变振荡频率。解决方案：差分电压控制振荡器100设置有并联连接到并联谐振电路100a的并联谐振电路100a和负电阻电路130。高频开关电路140包括连接在控制电压端子147和第一开关元件143之间的第一高频信号减少部分和连接在控制电压端子147和第二开关元件143之间的第二高频信号减少部分 144.版权所有（C）2006，JPO＆NCIPI

15. 发明专利

JP2004260301A Voltage-controlled oscillator with differential frequency control terminal 审中-公开
标题翻译：带差分频率控制终端的电压控制振荡器
公开(公告)号：JP2004260301A
公开(公告)日：2004-09-16
申请号：JP2003045997
申请日：2003-02-24
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAKINAMI KOJI , ADACHI HISASHI , OHARA JUNJI
IPC分类号： H03K3/354 , H03B5/12
摘要： PROBLEM TO BE SOLVED: To solve a problem of a conventional voltage-controlled oscillator having first and second frequency control terminals integrated on a semiconductor substrate that a substrate loss caused by a parasitic component with the semiconductor substrate is increased when the frequency gets higher resulting in deteriorating the phase noise characteristic. SOLUTION: Varactor elements 108, 109 are formed so that a parasitic capacitance with respect to the substrate is connected to the cathodes of the elements and varactor elements 110, 111 are formed so that a parasitic capacitance with respect to the substrate is connected to the anodes of the elements. Thus, leakage of a high frequency signal to the substrate can be prevented. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：解决的问题为了解决现有的具有集成在半导体基板上的第一和第二频率控制端子的压控振荡器的问题，当频率达到时，由半导体衬底的寄生成分引起的衬底损耗增加导致相位噪声特性恶化。变压器元件108,109形成为使得相对于衬底的寄生电容连接到元件的阴极，并且形成变容二极管元件110,111，使得相对于衬底的寄生电容被连接到元素的阳极。因此，可以防止高频信号向基板的泄漏。版权所有（C）2004，JPO＆NCIPI

16. 发明专利

JP2004146810A Printed wiring board, build-up board, manufacturing method of printed wiring board, and electronic equipment 审中-公开
公开(公告)号：JP2004146810A
公开(公告)日：2004-05-20
申请号：JP2003331700
申请日：2003-09-24
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： MORIMOTO SHIGERU , ADACHI HISASHI , NAKATANI TOSHIBUMI , TAKINAMI KOJI
IPC分类号： H05K1/02 , H01P5/02 , H05K3/46
摘要： PROBLEM TO BE SOLVED: To provide a printed wiring board which can reduce transmission loss at a desired frequency, a build-up board, and a manufacturing method of the printed wiring board. SOLUTION: This printed wiring board is equipped with a multilayer board 1, a via hole 3 which penetrates the multilayer board 1, a surface-layer wiring 2 which is provided on the surface layer of the multilayer board 1 and is connected to one end 6 of the via hole 3, at least one inner layer wiring 4 which is provided in the multilayer board 1 and is connected to any point of the conductive portion (excluding the upper and lower ends) of the via hole 3, and a conductive member 9 which is connected to the other end 7 (opposite to the end 6 to which the surface-layer wiring 2 is connected). The conductive member 9 has such an electrical length that the impedance value obtained at a predetermined frequency when the conductive member 9 is viewed from a connection point 8 between the inner layer wiring 4 and the conductive portion of the via hole 3, which is the nearest to the end 7, becomes greater than the impedance value obtained when the end 7 is viewed from the connection point 8 in the case where the conductive member 9 is absent. COPYRIGHT: (C)2004,JPO

17. 发明专利

JP2002232502A SIGNAL GENERATING CIRCUIT 失效
公开(公告)号：JP2002232502A
公开(公告)日：2002-08-16
申请号：JP2001029526
申请日：2001-02-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKINAMI KOJI , ADACHI HISASHI , TANABE MITSURU , FUKUDA KENJI
IPC分类号： H04L27/38
摘要： PROBLEM TO BE SOLVED: To solve a problem of a conventional radio unit conducting direct modulation and direct demodulation that cannot have realized a 90-degree phase shifter when the frequency of transmission reception gets higher. SOLUTION: The signal generating circuit is configured such that two oscillators 100, 101 and two mixers 103a, 103b are used and after output signals from the one oscillator are distributed to the mixers with a phase difference of 90-degrees, the mixers mix signals outputted from the other local oscillator and a desired local oscillation LO signal is obtained.

18. 发明专利

JP2001217883A ASK MODULATOR 失效
公开(公告)号：JP2001217883A
公开(公告)日：2001-08-10
申请号：JP2000023665
申请日：2000-02-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKINAMI KOJI , SAKAKURA MAKOTO , NAKAMURA TOSHIAKI , NANBA HIDEKI
IPC分类号： H04L27/04
摘要： PROBLEM TO BE SOLVED: To provide an ASK modulator with a high linearity modulation characteristic SOLUTION: The ASK modulator with entirely. high linearity that employs a level shift circuit to convert an input signal to have a voltage range providing high linearity or employs a plurality of switches with different biases is realized.

19. 发明专利

JP2008245259A Voltage controlled oscillator, and pll circuit and radio communication apparatus using the same 审中-公开
标题翻译：电压控制振荡器和PLL电路和无线电通信装置
公开(公告)号：JP2008245259A
公开(公告)日：2008-10-09
申请号：JP2008035077
申请日：2008-02-15
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： CHIKUSAWA TAKAYUKI , TAKINAMI KOJI
IPC分类号： H03B5/12 , H03L7/099
CPC分类号： H03B5/1228 , H03B5/1215 , H03B5/1243 , H03B5/1265 , H03B5/1293 , H03B2201/025 , H03J2200/10
摘要： PROBLEM TO BE SOLVED: To more easily provide a voltage controlled oscillator having high linearity of oscillation frequency over a wide control potential range.
SOLUTION: The voltage controlled oscillator comprises an inductor circuit, n variable capacitance circuits and a negative resistance circuit that are connected in parallel, and a reference voltage generation section 114 for generating n reference voltages based on a power supply potential. One of the n reference voltages is input to one of the terminals of a variable capacitance element of each of the n variable capacitance circuits. A control voltage Vt for feedback-controlling an oscillation frequency is input to the other of the terminals of the variable capacitance element of each of the n variable capacitance circuits. A first to a third reference voltage Vref1, Vref2 and Vref3 are input to a first to a third variable capacitance circuit A, B and C, respectively. The first to third reference voltages Vref1, Vref2 and Vref3 each have a fixed value, and a difference between the first reference voltage Vref1 and the second reference voltage Vref2 and a difference between the second reference voltage Vref2 and the third reference voltage Vref3 are different from each other.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了更容易地提供在宽的控制电位范围内具有高振荡频率线性度的压控振荡器。电压控制振荡器包括并联连接的电感电路，n个可变电容电路和负电阻电路以及用于基于电源电位产生n个参考电压的参考电压产生部分114。 n个参考电压中的一个被输入到n个可变电容电路中的每一个的可变电容元件的一个端子。将用于反馈控制振荡频率的控制电压Vt输入到n个可变电容电路中的每一个的可变电容元件的另一个端子。第一至第三参考电压Vref1，Vref2和Vref3分别输入到第一至第三可变电容电路A，B和C. 第一至第三参考电压Vref1，Vref2和Vref3各自具有固定值，并且第一参考电压Vref1和第二参考电压Vref2之间的差以及第二参考电压Vref2与第三参考电压Vref3之间的差异不同于彼此。版权所有（C）2009，JPO＆INPIT

20. 发明专利

JP2006019938A Voltage-controlled oscillator and wireless communication equipment 审中-公开
标题翻译：电压控制振荡器和无线通信设备
公开(公告)号：JP2006019938A
公开(公告)日：2006-01-19
申请号：JP2004194434
申请日：2004-06-30
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAKINAMI KOJI , CHIKUSAWA TAKAYUKI , OHARA JUNJI
IPC分类号： H03B5/04 , H01L21/822 , H01L27/04 , H03B5/12
摘要： PROBLEM TO BE SOLVED: To solve the problem wherein a voltage-controlled oscillator using a field effect transistor has larger substrate loss to deteriorate in phase noise characteristics when a back gate terminal is connected to a source to reduce fluctuations of an oscillation frequency accompanying source voltage variation.
SOLUTION: The back gate terminal of an oscillation transistor 115 is connected to the source terminal via a high-impedance element 119 and the back gate terminal of an oscillation transistor 116 is connected to the source terminal via a high-impedance element 120.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题为了解决使用场效应晶体管的压控振荡器，当背栅极端子连接到源极以减小振荡频率的波动时，相位噪声特性具有较大的衬底损耗而劣化的问题伴随源电压变化。解决方案：振荡晶体管115的背栅极端子经由高阻抗元件119连接到源极端子，并且振荡晶体管116的背栅极端子经由高阻抗元件120连接到源极端子（C）2006年，JPO＆NCIPI

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