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21. 发明专利

JP2012526492A For Vco frequency tuning, overlapping 2 segment capacitor bank 审中-公开
公开(公告)号：JP2012526492A
公开(公告)日：2012-10-25
申请号：JP2012510031
申请日：2010-05-07
申请人：クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人：ゼン、イ , パン、ヅ−ワン , リン、イ−シャン
IPC分类号： H03B5/12
CPC分类号： H03B5/1228 , H03B5/1212 , H03B5/1253 , H03B5/1265 , H03B5/1293
摘要：【解決手段】（例えばＦＭ受信機中の）ＶＣＯは、ＬＣ共振タンクを含む。ＬＣ共振タンクは、粗同調キャパシタバンクおよび微同調キャパシタバンクを含む。粗同調キャパシタバンクは複数のデジタル制御粗同調キャパシタエレメントを含み、アクティブな際に各々は第１キャパシタンス値を供給する。微同調キャパシタバンクは複数のデジタル制御微同調キャパシタエレメントを含み、アクティブな際に各々は第２キャパシタンス値を供給する。キャパシタミスマッチの現実的な問題に対処するため、ＶＣＯチューニング範囲の全体にわたるキャパシタンスオーバーラップが、微キャパシタバンクのデジタル制御微同調キャパシタエレメントの全てがアクティブな場合に、微キャパシタバンクのキャパシタンス値が第１キャパシタンス値より大きくなるように第１及び第２キャパシタンス値を選択することによって生成される。
【選択図】図５

22. 发明专利

JP2009545195A Voltage controlled oscillator (vco) 审中-公开
公开(公告)号：JP2009545195A
公开(公告)日：2009-12-17
申请号：JP2009519770
申请日：2007-07-19
申请人：エコール・ドゥ・テクノロジー・スュペリュール
发明人：ガニョン，ジョナサン , ガニョン，フランソワ
IPC分类号： H03B5/08 , H03B5/02 , H03L1/02
CPC分类号： G01K7/32 , H03B5/1203 , H03B5/1228 , H03B5/1253 , H03B5/1293 , H03B2200/0008
摘要：本発明は、電圧制御発振器（ＶＣＯ）に関し、高温センサ送受信機でのＶＣＯの使用に関する。このＶＣＯは、電圧入力と、その電圧入力に応じた発振周波数とを有する。このＶＣＯは、持続発振を可能にする利得をもたらすトランジスタを含む。このトランジスタはまた、入力電圧に応じて変化する容量を有する。高温センサには、センサ出力信号を無線送信するためにＶＣＯに動作可能に結合された高温センサを含む。
【選択図】図１

23. 发明专利

JP2008311820A Voltage controlled oscillator and oscillation control system 审中-公开
标题翻译：电压控制振荡器和振荡控制系统
公开(公告)号：JP2008311820A
公开(公告)日：2008-12-25
申请号：JP2007156085
申请日：2007-06-13
申请人： Toshiba Corp , Toshiba Information Systems (Japan) Corp , 東芝情報システム株式会社 , 株式会社東芝
发明人： ITO NOBUYUKI , NAKAJIMA CHIHARU
IPC分类号： H03B5/08 , H03B5/12
CPC分类号： H03B5/1228 , H03B5/1215 , H03B5/1243 , H03B5/1293
摘要： PROBLEM TO BE SOLVED: To provide a voltage controlled oscillator capable of changing a gain, for example, so as to correspond to various radio standards.
SOLUTION: The voltage controlled oscillator 1 is provided with a first MOS transistor whose one end is connected to a first potential; a second MOS transistor whose one end is connected to the first potential, whose gate is connected to the other end of the first MOS transistor, and the other end of which is connected to a gate of the first MOS transistor; a first varactor whose capacitance changes in accordance with first control voltage; a first inductor whose one end is connected to one end of the first varactor; a second inductor whose one end is connected to the other end of the first varactor; a second varactor whose capacitance changes in accordance with second control voltage; a third inductor connected between one end of the second varactor and a second potential; and a fourth inductor connected between the other end of the second varactor and the second potential.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供能够改变增益的压控振荡器，例如，以便对应于各种无线电标准。解决方案：压控振荡器1设置有第一MOS晶体管，其一端连接到第一电位; 第二MOS晶体管，其一端连接到第一电位，其栅极连接到第一MOS晶体管的另一端，另一端连接到第一MOS晶体管的栅极; 电容根据第一控制电压而变化的第一变容二极管; 第一电感器，其一端连接到第一变容二极管的一端; 第二电感器，其一端连接到第一变容二极管的另一端; 电容根据第二控制电压而变化的第二变容二极管; 连接在第二变容二极管的一端和第二电位之间的第三电感器; 以及连接在所述第二变容二极管的另一端和所述第二电位之间的第四电感器。版权所有（C）2009，JPO＆INPIT

24. 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

25. 发明专利

JP2008535428A Tuning controller 审中-公开
公开(公告)号：JP2008535428A
公开(公告)日：2008-08-28
申请号：JP2008504821
申请日：2005-10-17
申请人：ジョージ・ヘドリー・ストーム・ロコス
发明人：ジョージ・ヘドリー・ストーム・ロコス
IPC分类号： H03J3/04 , H03B5/12 , H03H11/46
CPC分类号： H03J3/04 , H03B5/1228 , H03B5/1253 , H03B5/1293
摘要：複数の入力印加信号に対する依存性を有する出力リアクタンスを有し、前記印加信号の一つが入力同調信号であるところの共振回路の同調構成は、その出力リアクタンスが前記共振回路の共振周波数を制御する回路網に接続され、各同調回路が制御入力を有すると共に前記制御入力に印加される制御信号の値に依存して変化するリアクタンスを有する同調回路のアレイと、前記同調回路の制御入力に印加する複数の異なる制御信号を生成する手段を備える。各制御信号は、その制御信号に固有の所定範囲にわたって前記入力同調信号と実質的に線形的に変化し、それにより前記入力同調信号に対する前記共振回路の周波数応答は入力同調信号の所望の範囲にわたって実質的に線形となる。前記同調回路は、好ましくはＭＯＳバラクターのような可変リアクタンス要素であり、制御信号は高次の成分を制御するために印加される。

26. 发明专利

JP2006203552A Voltage controlled oscillation circuit, and its adjustment method 有权
标题翻译：电压控制振荡电路及其调整方法
公开(公告)号：JP2006203552A
公开(公告)日：2006-08-03
申请号：JP2005013094
申请日：2005-01-20
申请人： Fujitsu Ltd , 富士通株式会社
发明人： YONEKAWA MASAYUKI , KUROKOCHI YASUHIRO , KITANO MASEI
IPC分类号： H03L7/099 , H03B5/02 , H03B5/12
CPC分类号： H03H7/0153 , H03B5/1215 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B5/1293 , H03H11/04 , H03H11/1291
摘要： PROBLEM TO BE SOLVED: To provide a voltage controlled oscillation circuit capable of adjusting the suppression of nonuniformity in output characteristics regardless of manufacturing nonuniformity in the characteristics of a configuration element through the use of a simple circuit constitution, and to provide its adjustment method. SOLUTION: A low-pass filter 15 and a high-pass filter 16 are constituted of an element with a structure being the same as that of the element which constitutes a voltage control oscillation circuit 11, so as to obtain prescribed correlation. A correction element 14 is connected in parallel with a main element, to which an oscillation frequency control signal VT is input, in the voltage control oscillation circuit 11. Frequency-gain characteristics of the low-pass filter 15 and the high-pass filter 16 are intersected, having mutually opposite inclinations at a target gain value TG. In the case of the nonuniformity of low capacity values, an output signal SL2 is larger in output level than an output signal SH2 in a reference frequency fREF. Thus, an output level difference LD2 is generated, so as to output an adjustment signal VCNT 2 corresponding to the LD2. Then, an oscillation frequency fVCO is made to be lower. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电压控制振荡电路，其能够通过使用简单的电路结构来调整对输出特性的不均匀性的抑制，而不管构成元件的特性的制造不均匀性，并且提供其调节方法。解决方案：低通滤波器15和高通滤波器16由具有与构成电压控制振荡电路11的元件相同的结构的元件构成，以获得规定的相关性。校正元件14与电压控制振荡电路11中与其输入振荡频率控制信号VT的主要元件并联连接。低通滤波器15和高通滤波器16的频率增益特性相交，在目标增益值TG处具有相互相反的倾斜度。在低容量值不均匀的情况下，输出信号SL2的输出电平比参考频率fREF中的输出信号SH2大。因此，产生输出电平差LD2，以输出对应于LD2的调整信号VCNT 2。然后，使振荡频率fVCO更低。版权所有（C）2006，JPO＆NCIPI

27. 发明专利

JP2005311945A Pll circuit, radio communication device, and oscillation frequency control method 审中-公开
标题翻译： PLL电路，无线电通信设备和振荡频率控制方法
公开(公告)号：JP2005311945A
公开(公告)日：2005-11-04
申请号：JP2004129507
申请日：2004-04-26
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： HINO TAKUO
IPC分类号： H03L7/093 , H03B1/00 , H03B5/12 , H03J5/24 , H03L7/089 , H03L7/099 , H03L7/10 , H03L7/183 , H03L7/187 , H04B1/40
CPC分类号： H03L7/0898 , H03B5/1215 , H03B5/1231 , H03B5/1243 , H03B5/1265 , H03B5/1293 , H03J5/244 , H03L7/10 , H03L7/183 , H03L2207/06
摘要： PROBLEM TO BE SOLVED: To provide a low-cost and stable PLL circuit with optimized C/N property at the time of lock, optimized lock-up time until the lock of the PLL circuit, and the like for all bands. SOLUTION: The PLL circuit includes: a voltage control oscillator having two or more bands; a first frequency divider for dividing frequency of an output signal from the voltage control oscillator; a reference signal oscillator; a second frequency divider for dividing the reference signal generated from the reference signal oscillator; a phase comparator for detecting a phase error between the output signal of the first frequency divider and the output signal of the second frequency divider and generating a phase error signal; a charge pump for inputting and outputting a current formed by a gain established according to the selected band based on the phase error signal; and a loop filter for increasing and decreasing the voltage with a prescribed low-pass filtering characteristic through a current inputted and outputted by the charge pump and generating a control voltage. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了在锁定时提供具有优化的C / N特性的低成本且稳定的PLL电路，优化锁相时间，直到PLL电路的锁定等等为所有频带。解决方案：PLL电路包括：具有两个或更多个频带的压控振荡器; 用于分压来自所述电压控制振荡器的输出信号的频率的第一分频器; 参考信号振荡器; 第二分频器，用于分割从参考信号振荡器产生的参考信号; 相位比较器，用于检测第一分频器的输出信号和第二分频器的输出信号之间的相位误差，并产生相位误差信号; 电荷泵，用于输入和输出基于相位误差信号的根据所选频带建立的增益形成的电流; 以及环路滤波器，用于通过由电荷泵输入和输出的电流以规定的低通滤波特性来增加和减小电压，并产生控制电压。版权所有（C）2006，JPO＆NCIPI

28. 发明专利

JP2004120728A Oscillation circuit and semiconductor integrated circuit for communication 审中-公开
公开(公告)号：JP2004120728A
公开(公告)日：2004-04-15
申请号：JP2003119203
申请日：2003-04-24
申请人： Epoch Microelectronics Inc , Renesas Technology Corp , エポック・マイクロエレクトロニクス・インコーポレーテッド , 株式会社ルネサステクノロジ
发明人： KITAMURA TOMOMITSU , KIMURA YASUYUKI , SUYAMA KEN , DEC ALEKSANDER
IPC分类号： G01R31/28 , H01L21/822 , H01L27/04 , H03B5/12 , H03L5/00 , H03L7/099 , H03L7/10
CPC分类号： H03L7/10 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1253 , H03B5/1262 , H03B5/1293 , H03L5/00 , H03L7/099
摘要： PROBLEM TO BE SOLVED: To provide a voltage controlled oscillation circuit in which output amplitude and oscillation frequency are measured without affecting characteristics of a VCO, and parasitic capacitance that affects the oscillation frequency is reduced to perform an oscillating operation in accurate frequency. SOLUTION: In the LC resonance type oscillation circuit wherein a plurality of capacitors (C11-C42) are connected to an output node, voltages (VB3-VB0) for selecting oscillation frequency bands are applied to terminals on the opposite side of the capacitors, and the oscillation frequency band can be changed step by step in accordance with the selected voltage, at least one of the capacitors is composed of a variable capacitor of which the capacitance value is changed in accordance with the applied voltage like a MOS capacitor composed of a structure similar to a MOS transistor and in place of the selected voltage, and a voltage from a variable voltage source (VCSP) can be supplied to a terminal on the opposite side of the output node of the variable capacitor, for example. COPYRIGHT: (C)2004,JPO

29. 发明专利

JP2003347844A Voltage-controlled oscillator, pll circuit and semiconductor device 审中-公开
标题翻译：电压控制振荡器，PLL电路和半导体器件
公开(公告)号：JP2003347844A
公开(公告)日：2003-12-05
申请号：JP2002155653
申请日：2002-05-29
申请人： Fujitsu Ltd , Fujitsu Vlsi Ltd , 富士通ヴィエルエスアイ株式会社 , 富士通株式会社
发明人： YONEKAWA MASAYUKI , DOI TAKEHITO
IPC分类号： H03B5/08 , H03B1/00 , H03B5/12 , H03L7/099
CPC分类号： H03L7/193 , H03B5/1215 , H03B5/1231 , H03B5/1243 , H03B5/1265 , H03B5/1293 , H03B2201/025 , H03J2200/10
摘要： PROBLEM TO BE SOLVED: To provide a voltage-controlled oscillator which prevents CN characteristics and linearity from deterioration, while making an oscillation frequency band broad-banded.
SOLUTION: The voltage-controlled oscillator is constituted of an oscillating portion 23 and a control portion 28. The oscillating portion 23 outputs an output signal f
vco of the oscillation frequency based on a control voltage VT and is provided with a switching means, to switch the oscillation frequency band of the output signal f
vco based on an input of a switching signal VSW. The controlling portion 28 outputs the switching signal VSW, based on the control voltage VT.
COPYRIGHT: (C)2004,JPO

30. 发明专利

JPS59174004A High-frequency oscillator 失效
标题翻译：高频振荡器
公开(公告)号：JPS59174004A
公开(公告)日：1984-10-02
申请号：JP4715183
申请日：1983-03-23
申请人： Hitachi Ltd
发明人： YAMAMOTO AKIO , SHINKAWA TAKAO , IRIKOU TAKAHIKO
IPC分类号： H03B5/02 , H03B5/12
CPC分类号： H03B5/1218 , H03B5/1243 , H03B5/125 , H03B5/1293
摘要： PURPOSE:To stabilize both oscillation and the bias to the temperature change and to realize miniaturization of a high-frequency oscillator, by connecting directly the bases to obtain a low impedance state and furthermore connecting directly the transistor base of a buffer amplifier to use a collector as an input. CONSTITUTION:A base 2 of a transistor TR1 having its bias set by resistances 7-10 is grounded via a capacitor 5 to obtain a low impedance. A feedback capacitor 6 is connected between an emitter 4 and a collector 3, and a resonance circuit consisting of an inductance 14 and variable capacity diodes 12 and 13 to which the bias is supplied through a capacitor 11 and resistances 15 and 16 is connected to the collector 3. Thus a variable frequency oscillator is obtained. Then the base of a TR17 to which the bias is set by resistances 7, 8, 19 and 20 is connected to the base 2, and a collector 19 is used as an oscillation output.
摘要翻译：目的：为了稳定振荡和偏置到温度变化，并实现高频振荡器的小型化，通过直接连接基座以获得低阻抗状态，此外直接连接缓冲放大器的晶体管基极使用集电极作为输入。构成：具有由电阻7-10设定的偏置的晶体管TR1的基极2通过电容器5接地以获得低阻抗。反馈电容器6连接在发射极4和集电极3之间，并且由电感14和可变电容二极管12和13组成的谐振电路通过电容器11和电阻15和16连接偏压。因此得到可变频率振荡器。然后，通过电阻7,8,19和20将偏置设置的TR17的基极连接到基座2，并且使用集电器19作为振荡输出。

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