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1. 发明专利

JP2005005801A Pll circuit 审中-公开
标题翻译： PLL电路
公开(公告)号：JP2005005801A
公开(公告)日：2005-01-06
申请号：JP2003164186
申请日：2003-06-09
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 , HIRAOKA YUKIO
IPC分类号： H03K5/26 , H03B5/12 , H03L7/099
摘要： PROBLEM TO BE SOLVED: To solve the problem that a PLL circuit having a voltage-controlled oscillator becomes susceptible to the influence of noise from the outside because reduction in power source voltage narrows a variable range of a frequency control voltage. SOLUTION: This PLL circuit is provided with a differential control signal generator 2 for outputting three differential control signals, and a voltage-controlled oscillator for changing an oscillation frequency according to the differential control signals outputted from the section 2 to output a local oscillation signal fo. The voltage-controlled oscillator 1 includes variable capacitance circuits 115, 116 and 117 for varying capacitive values corresponding to potential differences ΔA, ΔB and ΔC in differential control signals to be inputted, an inductor 101 connected in parallel to the variable capacitance circuits, and a negative resistance circuit 100 connected in parallel to the variable capacitance circuits and the inductor 101. The potential differences ΔA, ΔB and ΔC have intervals of Vd. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题为了解决具有压控振荡器的PLL电路容易受到来自外部的噪声的影响的问题，因为电源电压的降低使频率控制电压的可变范围变窄。解决方案：该PLL电路设置有用于输出三个差分控制信号的差分控制信号发生器2和用于根据从部分2输出的差分控制信号来改变振荡频率的压控振荡器，以输出局部振荡信号fo。压控振荡器1包括用于改变对应于要输入的差分控制信号中的电位差ΔA，ΔB和ΔC的电容值的可变电容电路115,116和117，与可变电容电路并联连接的电感器101和负电阻电路100并联连接到可变电容电路和电感器101.电位差ΔA，ΔB和ΔC具有Vd的间隔。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2003273652A Image rejection mixer apparatus 审中-公开
标题翻译：图像抑制混合器装置
公开(公告)号：JP2003273652A
公开(公告)日：2003-09-26
申请号：JP2002070349
申请日：2002-03-14
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
IPC分类号： H03D7/18 , H03D7/14
摘要： PROBLEM TO BE SOLVED: To solve the problem that noise characteristics are deteriorated when RC phase shifters cascade connected for multi-stages are used for an RF input and an LO injection level is lowered when the RC phase shifters are used for an LO input for realizing a broadband image rejection mixer apparatus.
SOLUTION: The image rejection mixer apparatus is configured by connecting a 90° phase shifter 101 between the transistors of upper stages 110 and 112 and between the transistors of lower stages 111 and 113 comprising double balance mixers. An RF signal is passed through the 90° phase shifter 101 after being amplified by transistors 110 and 112 of the lower stages to suppress the deterioration of the noise characteristics, and the 90° phase shifter 101 is not used for an LO input stage 104 to obtain the sufficient LO injection level.
COPYRIGHT: (C)2003,JPO
摘要翻译：解决的问题：为了解决当用于多级的RC相移级联连接用于RF输入时噪声特性恶化的问题，并且当RC移相器用于LO时，LO注入电平降低用于实现宽带镜像抑制混频器装置的输入。解像率：通过将90°移相器101连接在上级110和112的晶体管之间以及在包括双重平衡混频器的下级111和113的晶体管之间连接来构造镜像抑制混频器装置。 RF信号在被下级晶体管110和112放大之后通过90°移相器101，以抑制噪声特性的恶化，并且90°移相器101不用于LO输入级104 获得足够的LO注射水平。版权所有（C）2003，JPO

3. 发明专利

JP2005117428A Voltage controlled oscillator, pll circuit, communication equipment and voltage controlled oscillating method 审中-公开
标题翻译：电压控制振荡器，PLL电路，通信设备和电压控制振荡方法
公开(公告)号：JP2005117428A
公开(公告)日：2005-04-28
申请号：JP2003350046
申请日：2003-10-08
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： H03B5/12 , H03L7/093 , H03L7/099
摘要： PROBLEM TO BE SOLVED: To provide a voltage controlled oscillator capable of controlling a frequency range over a wide band even though power supply potential is low, a voltage controlled oscillating method, a PLL circuit using it and communication equipment using the PLL circuit. SOLUTION: This voltage controlled circuit is provided with an inductor circuit 7 having at least one inductor 1, 2, a variable capacitance circuit 10 having varactors 8 and 9, the capacitance of which changes due to applied voltage and having blocking capacitors 15 and 16 for interrupting direct current components at both ends, a negative resistive circuit 13, and a switch 19 which can change reference potential to feed the changed reference potential to one side between varactors 8 and 9, wherein the inductor circuit 7, the variable capacitance circuit 10 and the negative resistive circuit 13 are connected parallel, and control potential in the range from ground potential to power supply potential for feedback controlling an oscillation frequency is inputted to the other side of the varactors 8 and 9. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使电源电位低，也可以使用能够控制宽带的频率范围的压控振荡器，电压控制振荡法，使用它的PLL电路和使用PLL电路的通信设备。该电压控制电路具有电感器电路7，该电感器电路具有至少一个电感器1,2，具有可变电抗器8和9的可变电容电路10，其电容因施加的电压而变化并具有阻塞电容器15 和16，用于中断两端的直流分量，负电阻电路13和开关19，其可以改变参考电位以将改变的参考电位馈送到变容二极管8和9之间的一侧，其中电感器电路7，可变电容电路10和负电阻电路13并联连接，并且将控制电压从地电位到电源电位的控制电位输入到变容二极管8和9的另一侧。 C）2005，JPO＆NCIPI

4. 发明专利

JP2003324315A Voltage-controlled oscillator 审中-公开
标题翻译：电压控制振荡器
公开(公告)号：JP2003324315A
公开(公告)日：2003-11-14
申请号：JP2002129128
申请日：2002-04-30
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
IPC分类号： H03B5/12
摘要： PROBLEM TO BE SOLVED: To realize a voltage-controlled oscillator which has an excellent noise characteristic even when the oscillation frequency of the voltage-controlled oscillator is high.
SOLUTION: A series resonance circuit is connected by a parasitic inductance 111c and a capacitor 112c in parallel to a current source 110 and the resonance frequency of the series resonance circuit is set twice as high as an oscillation frequency. Further, parallel resonance circuits 114 and 115 having a resonance frequency twice as high as the oscillation frequency are connected between the current source 110 and oscillation transistors 101a and 101b.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使当压控振荡器的振荡频率高时，实现具有优异噪声特性的压控振荡器。解决方案：串联谐振电路通过与电流源110并联的寄生电感111c和电容器112c连接，串联谐振电路的谐振频率设定为振荡频率的两倍。此外，在电流源110和振荡晶体管101a，101b之间连接谐振频率为振荡频率两倍的并联谐振电路114,115。版权所有（C）2004，JPO

5. 发明专利

JP2003060519A Reception circuit, transmission circuit, and radio communication circuit 审中-公开
标题翻译：接收电路，传输电路和无线电通信电路
公开(公告)号：JP2003060519A
公开(公告)日：2003-02-28
申请号：JP2001242928
申请日：2001-08-09
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAGI HIROYOSHI , TAKINAMI KOJI , ANDO TOSHIAKI , SAKAKURA MAKOTO
IPC分类号： H04B1/04 , H04B1/16 , H04B1/26 , H04B1/30 , H04B1/3822 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To overcome the problem wherein a balun for impedance conversion is required and circuit scale becomes large since a balance type circuit and a single-end circuit are mixed in the configuration of a conventional radio communication circuit, and further the large interference between elements causes deterioration in characteristics at a conventional radio section for miniaturization. SOLUTION: In a balance type circuit configuration, a reception section including a balance type antenna 111, a low-noise amplifier(LNA) 114, and a mixer 15 and a transmission section including a power amplifier 122 are balanced, thus eliminating the ground, and improving the performance of resistance to the interference between elements. Additionally, the balun is cleaned up for miniaturization.
摘要翻译：要解决的问题为了克服在常规无线电通信电路的配置中混合平衡型电路和单端电路而需要用于阻抗转换的平衡 - 不平衡变换器和电路规模变大的问题，并且还存在大的干扰元件之间导致常规无线电部分的特性劣化，以实现小型化。解决方案：在平衡型电路结构中，包括平衡型天线111，低噪声放大器（LNA）114和混频器15的接收部分和包括功率放大器122的发送部分平衡，从而消除了接地，并提高抗干扰元件之间的性能。此外，平衡 - 不平衡变换器被清理以进行小型化。

6. 发明专利

JP2002335187A RADIO COMMUNICATION DEVICE 失效
公开(公告)号：JP2002335187A
公开(公告)日：2002-11-22
申请号：JP2001140679
申请日：2001-05-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKINAMI KOJI , ADACHI HISASHI , SAKAKURA MAKOTO
IPC分类号： H04B1/44
摘要： PROBLEM TO BE SOLVED: To solve the problem, when a reception input level is large, of the leakage of an LO signal from a receiving route becoming large, when a bypass route is installed in an LNA for preventing saturation of a reception circuit. SOLUTION: The radio communication device is provided with a transmission system which transmits a signal to an antenna 101; a reception system comprising a high-frequency reception system, which receives the signal from the antenna 101 for processing the signal, and a low-frequency reception system which converts the signal into a low-frequency band for processing the signal; an antenna switch 103, which changes over the connection of the antenna to the transmission system or the high-frequency reception system; and a reception- level detection circuit 113, which detects a signal level in the low-frequency reception system. When it is determined by the circuit 113 that the reception input level is larger than the preset value, input from the antenna 101 is attenuated.

7. 发明专利

JP2001144643A RECEIVER, TRANSMITTER-RECEIVER AND TRANSMISSION RECEPTION METHOD 失效
公开(公告)号：JP2001144643A
公开(公告)日：2001-05-25
申请号：JP32646799
申请日：1999-11-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKINAMI KOJI , MACHIDA TAKASHI , SAKAKURA MAKOTO
IPC分类号： H04B1/10 , H04B1/40 , H04B7/155 , H04B7/26 , H04B17/00 , H04W24/00 , H04W56/00 , H04W84/06
摘要： PROBLEM TO BE SOLVED: To provide a transmission reception method where a reference signal generator with high frequency precision is provided only to a control station A and the frequency precision of a station B to be controlled is enhanced to the same as that of the control station A with a simple configuration. SOLUTION: The control station A transmits two common carriers having a prescribed frequency interval. The station B to be controlled extracts the frequency interval of the received common carriers through frequency conversion or the like and uses the extracted frequency signal as a reference signal.

8. 发明专利

JP2004134506A High-frequency semiconductor device and radio communication terminal equipment 审中-公开
公开(公告)号：JP2004134506A
公开(公告)日：2004-04-30
申请号：JP2002296218
申请日：2002-10-09
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： SHIMA TAKAHIRO , TAKINAMI KOJI , ADACHI HISASHI
IPC分类号： H01L27/04 , H01L21/822 , H01L21/8222 , H01L27/082
摘要： PROBLEM TO BE SOLVED: To provide a high-frequency semiconductor device which is capable of preventing leaking output signals from being fed back to input signals and reducing a gain deterioration in an amplifier.
SOLUTION: Output signals leaking from output terminals 104a and 104b are made to flow into a conductor layer 105 through parasitic capacitors C11a and C11b, board resistors R11a and R11b, and a conductor 111. The leaking signals are differential signals that are equal in amplitude and opposed in phase, so that the conductor layer 105 functions as a virtual ground point to the leaking signals, and the leaking signals are short-circuited. Therefore, the signals leaking from the output terminals 104a and 104b can be restrained from being fed back to the input terminals 103a and 103b, and the high-frequency semiconductor device capable of reducing a gain deterioration can be obtained.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2004056818A Oscillator, pll circuit, communication equipment, and oscillation method 审中-公开
标题翻译：振荡器，PLL电路，通信设备和振荡方法
公开(公告)号：JP2004056818A
公开(公告)日：2004-02-19
申请号：JP2003274473
申请日：2003-07-15
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
IPC分类号： H03B5/12 , H03L7/099
摘要： PROBLEM TO BE SOLVED: To provide an oscillator in which circuit characteristics are balanced without being affected by noise from a signal line and a power line, and a PLL circuit utilizing the oscillator, or communication equipment utilizing the oscillator or the PLL circuit.
SOLUTION: The oscillator provided with a resonance circuit has a first serial connection circuit 88 having coils 1 and 2 and a power supply terminal 17, a second serial connection circuit 89 having capacitors 3 and 5 and a varactor 4 having directivity in its characteristics, and a third serial connection circuit 90 having capacitors 10 and 12 and a varactor 11 having directivity in its characteristics, the first, second and third serial connection circuits are parallel connected, the varactors 4 and 11 are connected to the connection side of the second and third serial connection circuit to mutually invert their directivity, the capacitance of the varactors 4 and 11 is changed by control from the outside and in accordance with the changed variable-capacitance, an oscillation frequency is determined.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种振荡器，其中电路特性被平衡而不受来自信号线和电源线的噪声的影响，以及利用振荡器的PLL电路或利用振荡器或PLL电路的通信设备。提供有谐振电路的振荡器具有带有线圈1和2的第一串行连接电路88和电源端子17，具有电容器3和5的第二串联连接电路89和具有方向性的变容二极管4 特性和具有电容器10和12的第三串联连接电路90和具有其特性方向性的变容二极管11，第一，第二和第三串联连接电路并联连接，变容二极管4和11连接到第二和第三串联连接电路相互反转它们的方向性，通过从外部的控制改变变容二极管4和11的电容，并且根据改变的可变电容，确定振荡频率。版权所有（C）2004，JPO

10. 发明专利

JP2003283361A Radio reception device, radio reception method, program, and medium 审中-公开
标题翻译：无线电接收设备，无线接收方法，程序和媒体
公开(公告)号：JP2003283361A
公开(公告)日：2003-10-03
申请号：JP2002081491
申请日：2002-03-22
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： NAKATANI TOSHIBUMI , TAKINAMI KOJI , ADACHI HISASHI
IPC分类号： H04B1/26 , H04B1/3822 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To realize downsizing and low current consumption at the same time which are quite important for high-performance of devices such as portable radio terminal equipment. SOLUTION: A radio terminal equipment is provided with: a local signal oscillator 160 for oscillating a local signal; a local signal variable amplifier 170 for inputting the oscillated local signal to be amplified; a variable mixer 180 for inputting the amplified local signal and a receptions signal to be mixed; and a controller 190 for detecting whether or not a transmission signal is generated, for controlling the variable mixer 180 to make a level of a consumption current high at the variable mixer 180 when the generation of the transmission signal is detected, and for controlling the local signal variable amplifier 170 to make a level of a local injection current high for the variable mixer 180. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：同时实现小型化和低电流消耗，这对于诸如便携式无线电终端设备的高性能的设备是非常重要的。解决方案：无线电终端设备设有：用于振荡本地信号的本地信号振荡器160; 用于输入被放大的振荡本地信号的本地信号可变放大器170; 用于输入放大的本地信号的可变混合器180和待混合的接收信号; 以及用于检测是否产生发送信号的控制器190，用于在检测到发送信号的生成时控制可变混合器180使可变混合器180的消耗电流的电平达到高电平，并且用于控制本地信号可变放大器170，以使可变混合器180的局部注入电流水平高。（C）2004，JPO

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