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61. 发明授权

US07209010B2 Oscillator with tunable diffusion capacitance as resonant circuit capacitance 有权
标题翻译：具有可调扩散电容的振荡器作为谐振电路电容
公开(公告)号：US07209010B2
公开(公告)日：2007-04-24
申请号：US11094534
申请日：2005-03-31
申请人： Hans-Peter Waible
发明人： Hans-Peter Waible
IPC分类号： H03L7/09 , H03B5/08 , H03B5/18
CPC分类号： H03B5/1228 , H03B5/1209 , H03B5/1231 , H03B5/1243
摘要： An oscillator includes a resonant circuit of at least one inductance device and at least one tunable capacitance. The tunable capacitance is implemented through diffusion capacitances of at least one current-carrying transistor. The tunable capacitance has a first differential amplifier having a first transistor and a second transistor and a second differential amplifier having a third transistor and a fourth transistor Electrical properties of the first transistor and second transistor are complementary to electrical properties of the third transistor and fourth transistor, and control connections of the first transistor and the third transistor are connected to one another. Control connections of the second transistor and the fourth transistor are connected to one another. Second current connections of the first transistor and the third transistor are connected to one another, and second current connections of the second transistor and the fourth transistor are connected to one another.
摘要翻译：振荡器包括至少一个电感器件的谐振电路和至少一个可调谐电容。可调电容通过至少一个载流晶体管的扩散电容来实现。可调电容具有具有第一晶体管和第二晶体管的第一差分放大器和具有第三晶体管和第四晶体管的第二差分放大器第一晶体管和第二晶体管的电性能与第三晶体管和第四晶体管的电性能互补并且第一晶体管和第三晶体管的控制连接彼此连接。第二晶体管和第四晶体管的控制连接彼此连接。第一晶体管和第三晶体管的第二电流连接彼此连接，第二晶体管和第四晶体管的第二电流连接彼此连接。

62. 发明申请

US20070069831A1 Voltage controlled oscillator circuitry and methods 有权
标题翻译：压控振荡器电路及方法
公开(公告)号：US20070069831A1
公开(公告)日：2007-03-29
申请号：US11241295
申请日：2005-09-29
申请人： Tad Kwasniewski , William Bereza , Shoujun Wang , Muhammad Usama
发明人： Tad Kwasniewski , William Bereza , Shoujun Wang , Muhammad Usama
IPC分类号： H03B5/08
CPC分类号： H03L7/0995 , H03B5/1212 , H03B5/1228 , H03B5/1253 , H03B19/00 , H03B2200/0078 , H03L7/099 , H03L2207/06
摘要： Voltage controlled oscillator (“VCO”) circuitry includes LC tank or ring VCO circuitry and frequency divider circuitry that divides the frequency output by the oscillator circuitry by a selectable integer factor that is at least 2 in the case of a ring oscillator or at least 4 in the case of an LC tank oscillator. This arrangement allows the oscillator circuitry to operate at frequencies that are higher than the desired final output frequencies, which has such advantages as reducing the size and power consumption of the oscillator circuitry, and allowing the circuitry as a whole to have a wide range of operating frequencies while reducing the frequency range over which the oscillator circuitry may be required to operate.
摘要翻译：压控振荡器（“VCO”）电路包括LC槽或环VCO电路和分频器电路，其将振荡器电路的频率输出除以可选择的整数因子，在环形振荡器的情况下至少为2或至少为4 在LC槽振荡器的情况下。这种布置允许振荡器电路在高于期望的最终输出频率的频率下操作，其具有诸如减小振荡器电路的尺寸和功率消耗的优点，并且允许电路作为整体具有广泛的操作范围频率同时降低振荡器电路可能需要操作的频率范围。

63. 发明申请

US20060197621A1 Complementary metal oxide semiconductor voltage controlled oscillator 有权
标题翻译：互补金属氧化物半导体压控振荡器
公开(公告)号：US20060197621A1
公开(公告)日：2006-09-07
申请号：US11355976
申请日：2006-02-17
申请人： Sang-yoon Jeon , Heung-bae Lee , Sung-jae Jung
发明人： Sang-yoon Jeon , Heung-bae Lee , Sung-jae Jung
IPC分类号： H03B5/08
CPC分类号： H03B5/1228 , H03B5/1215 , H03B5/1243 , H03B2200/0062
摘要： A complementary metal oxide semiconductor voltage controlled oscillator is provided. The voltage controlled oscillator includes an LC tank which is supplied with a power supply voltage, the LC tank oscillating at a certain frequency; a negative resistor including first and second N-channel metal oxide semiconductor field effect transistors (NMOS FETs) to sustain the oscillation of the LC tank; a direct current block to remove a direct current component from the power supply voltage; an alternating current block to apply an alternating current voltage to the gates of the first and second NMOS FETs; a first current mirror including third and fourth NMOS FETs and allowing a current to symmetrically flow in the voltage controlled oscillator, a drain and the gate of the third NMOS FET being connected to a reference voltage supply; and the reference voltage supply applying a direct current voltage to the first current mirror.
摘要翻译：提供了互补金属氧化物半导体压控振荡器。压控振荡器包括一个供应电源电压的LC箱，LC箱以一定的频率振荡; 包括第一和第二N沟道金属氧化物半导体场效应晶体管（NMOS FET）的负电阻器，以维持LC箱的振荡; 直流电流块，用于从电源电压中去除直流分量; 交流电流块，用于向第一和第二NMOS FET的栅极施加交流电压; 第一电流镜包括第三和第四NMOS FET，并允许电流在压控振荡器中对称地流动，第三NMOS FET的漏极和栅极连接到参考电压源; 并且所述参考电压电源向所述第一电流镜施加直流电压。

64. 发明授权

US07098750B2 Wide frequency range agile voltage controlled oscillator 失效
公开(公告)号：US07098750B2
公开(公告)日：2006-08-29
申请号：US10918844
申请日：2004-08-16
申请人： Mikhail Morkovich
发明人： Mikhail Morkovich
IPC分类号： H03L7/09 , H03B5/08 , H03B5/18
CPC分类号： H03B5/1231 , H03B5/1203 , H03B5/1243 , H03B2200/0042
摘要： A voltage controlled oscillator that can rapidly change frequencies over a wide range is disclosed. The voltage controlled oscillator has a transistor having a base, an emitter and a collector. An output port and a power supply port are connected to the collector. A high pass filter is connected between ground and the base of the transistor. A tuning element is connected between the high pass filter and ground. The tuning element includes a pair of varactor diodes. The varactor diodes have their cathodes connected together at a first node. A series combination of a resistor and inductor are connected between a tuning port and the first node. A capacitor is connected between the first node and the emitter.

65. 发明申请

US20060181362A1 Voltage-controlled oscillator and RF-IC 审中-公开
标题翻译：压控振荡器和RF-IC
公开(公告)号：US20060181362A1
公开(公告)日：2006-08-17
申请号：US11280819
申请日：2005-11-17
申请人： Isao Ikuta , Akio Yamamoto , Yusaku Katsube , Toshiya Uozumi , Yasuyuki Kimura
发明人： Isao Ikuta , Akio Yamamoto , Yusaku Katsube , Toshiya Uozumi , Yasuyuki Kimura
IPC分类号： H03B5/08
CPC分类号： H03B5/1841 , H03B5/1212 , H03B5/1228 , H03B5/1243 , H03B5/1253
摘要： There are provided a voltage-controlled oscillator and an RF-IC for W-CDMA, which are capable of ensuring a wide frequency range and improving oscillation stability. The voltage-controlled oscillator (RF-IC) includes: switching A and B inductors generating a magnetic interaction between resonant A and B inductors of a resonant circuit; and an A_NMOS, a B_NMOS, a C_NMOS, and D_NMOS as switch/load means having together a function of changing an inductance value by the magnetic interaction between the resonant A and B inductors and the switching A and B inductors and a function of serving as loads of the switching A and B inductors. The A_NMOS, the B_NMOS, the C_NMOS, and the D_NMOS are turned ON/OFF by a control signal so as to control the mutual induction, whereby the oscillation frequency is switched by changing the inductance value of the resonant circuit. Also, oscillation stability is improved by increasing the inductance value.
摘要翻译：提供了一种用于W-CDMA的压控振荡器和RF-IC，其能够确保较宽的频率范围并提高振荡稳定性。压控振荡器（RF-IC）包括：开关A和B电感器，其在谐振电路的谐振A和B电感器之间产生磁相互作用; 以及作为开关/负载的A_NMOS，B_NMOS，C_NMOS和D_NMOS一起具有通过谐振A和B电感器与开关A和B电感器之间的磁相互作用改变电感值的功能，以及用作开关A和B电感的负载。通过控制信号使A_NMOS，B_NMOS，C_NMOS和D_NMOS变为ON / OFF，从而控制互感，从而通过改变谐振电路的电感值来切换振荡频率。此外，通过增加电感值来提高振荡稳定性。

66. 发明申请

US20060132253A1 CMOS LC-tank oscillator 有权
标题翻译： CMOS液晶振荡器
公开(公告)号：US20060132253A1
公开(公告)日：2006-06-22
申请号：US11132908
申请日：2005-05-19
申请人： Frank Gelhausen , Karlheinz Muth
发明人： Frank Gelhausen , Karlheinz Muth
IPC分类号： H03B5/08
CPC分类号： H03B5/1228 , H03B5/1215 , H03B5/1243
摘要： A CMOS LC-tank oscillator includes a pair of symmetric inductors and a differential pair of transistors. The inductors have a first one of their terminals interconnected at a supply node to which a voltage supply is applied through a supply resistor and a second terminal connected to the drain of a respective one of the transistors. The transistors have their sources interconnected at a tail node which is connected to ground through a tail resistor. A current control loop controls a core current between the supply and tail nodes so as to keep a voltage drop across the tail resistor at a level determined by a reference voltage. The current control loop keeps the core current between the supply and tail nodes at the required level so that a resistor may replace the upstream supply voltage regulator and another resistor may replace the downstream bias regulator. Consequently, sources of noise injected into the LC-tank type oscillator are eliminated.
摘要翻译：一个CMOS LC-槽振荡器包括一对对称电感和一对差分晶体管。电感器具有在供电节点互连的第一个端子，通过电源电阻施加电压源，和连接到相应的一个晶体管的漏极的第二端子。晶体管的源极在通过尾电阻连接到地的尾部节点处相互连接。电流控制回路控制供电节点和尾节点之间的磁芯电流，以便在由参考电压确定的电平上保持尾电阻上的电压降。电流控制回路将电源和尾节点之间的磁芯电流保持在所需电平，使得电阻器可以替代上游电源电压调节器，另一个电阻器可以替代下游偏置调节器。因此，消除了注入到LC槽型振荡器中的噪声源。

67. 发明申请

US20060097811A1 Variable inductor, and oscillator and communication system using the same 有权
公开(公告)号：US20060097811A1
公开(公告)日：2006-05-11
申请号：US11268643
申请日：2005-11-08
申请人： Takahiro Nakamura , Toru Masuda
发明人： Takahiro Nakamura , Toru Masuda
IPC分类号： H03B5/08
CPC分类号： H03B5/1228 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03B5/1253 , H03B5/1256 , H03B5/1293 , H03B5/1296 , H03B2201/0208 , H03B2201/0216 , H03H5/12 , H03J2200/10
摘要： There are provided a variable inductor with little degradation in quality factor, and an oscillator and a communication system using the variable inductor. An inductance controller comprising a reactance device with a variable device value, such as, for example, a variable capacitor, is connected to a secondary inductor, magnetically coupled to a primary inductor through mutual inductance. The inductance controller is provided with an inductance control terminal for receiving a control signal for controlling capacitance of the variable capacitor. Inductance of the primary inductor is varied by varying the capacitance by the control signal.

68. 发明申请

US20060097810A1 CMOS single-ended frequency doubler 有权
标题翻译： CMOS单端倍频器
公开(公告)号：US20060097810A1
公开(公告)日：2006-05-11
申请号：US10973277
申请日：2004-10-27
申请人： Pierre Guebels
发明人： Pierre Guebels
IPC分类号： H03B5/08
CPC分类号： H03B19/14
摘要： A CMOS single-ended frequency doubler with improved subharmonic rejection and low phase noise which allows a single ended reference signal to be utilized in a Balanced Colpitts oscillator. The input is reproduced with a 180-degree phase shift for the opposite Colpitts transistor. This is achieved by adding two PMOS transistors. One transistor is placed as a follower, which reproduces any voltage shift applied to its gate to its source. Another transistor is a matching transistor for balance. By applying the single-ended signal to the gate of the follower transistor, it is reproduced at the source. The rest of the circuit takes advantage of the summing of two period currents with a 180-degree phase shift. The present invention achieves superior performance for frequency doubling due to the squaring of the gate voltage in the corresponding drain current. As a result, the double frequency component is further enhanced.
摘要翻译：具有改进的次谐波抑制和低相位噪声的CMOS单端倍频器，允许在平衡Colpitts振荡器中使用单端参考信号。对于相反的Colpitts晶体管，输入以180度相移再现。这是通过添加两个PMOS晶体管来实现的。一个晶体管被放置为跟随器，其将施加到其栅极的任何电压移位到其源极。另一个晶体管是用于平衡的匹配晶体管。通过将单端信号应用于跟随晶体管的栅极，在源极处再生。电路的其余部分利用了具有180度相移的两个周期电流的相加。由于相应的漏极电流中的栅极电压的平方，本发明实现了倍频的优异性能。结果，双频分量进一步提高。

69. 发明申请

US20060071732A1 Oscillator circuit and L load differential circuit achieving a wide oscillation frequency range and low phase noise characteristics 失效
标题翻译：振荡电路和L负载差分电路实现宽振荡频率范围和低相位噪声特性
公开(公告)号：US20060071732A1
公开(公告)日：2006-04-06
申请号：US11280410
申请日：2005-11-17
申请人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
发明人： Hiroshi Komurasaki , Tomohiro Sano , Hisayasu Sato , Toshio Kumamoto , Yasushi Hashizume
IPC分类号： H03B5/08
CPC分类号： H03B5/1847 , H03B5/1215 , H03B5/1228 , H03B5/1243 , H03B5/1256 , H03B5/1265 , H03B5/1268
摘要： An oscillator circuit is formed of a differential LC resonant circuit formed of an L load differential circuit including inductance-variable portions and a capacitive element, and a positive feedback circuit formed of N-channel MOS transistors. The inductance-variable portion is configured to vary the inductance by selecting a plurality of switch circuits arranged between a plurality of arbitrary positions on a spiral interconnection layer and the input/output terminal, and thereby can control an oscillation frequency. The inductance-variable portions form an inductor pair when the switch circuit among the switch circuits coupled between the first input/output terminals is turned on together with the switch circuit.
摘要翻译：振荡电路由包括电感可变部分和电容元件的L负载差分电路和由N沟道MOS晶体管形成的正反馈电路构成的差分LC谐振电路形成。电感可变部被配置为通过选择布置在螺旋互连层上的多个任意位置和输入/输出端之间的多个开关电路来改变电感，从而可以控制振荡频率。当耦合在第一输入/输出端子之间的开关电路之间的开关电路与开关电路一起导通时，电感可变部分形成电感器对。

70. 发明授权

US07019597B2 Method and circuitry for implementing a differentially tuned varactor-inductor oscillator 失效
公开(公告)号：US07019597B2
公开(公告)日：2006-03-28
申请号：US10990224
申请日：2004-11-15
申请人： German Gutierrez
发明人： German Gutierrez
IPC分类号： H03B5/08
CPC分类号： H03B5/1228 , H03B5/1212 , H03B5/1253 , H03B5/1256
摘要： The present invention generally relates to voltage-controlled oscillators. More specifically, the present invention relates to method and circuitry for implementing a differentially tuned varactor-inductor oscillator. In one exemplary embodiment, the present invention includes an LC tank circuit having a couple of terminals, a first and second capacitors, and a first and second varactors. The first and second varactors are connected in series forming a first and a second node. The first capacitor connects the first node and one terminal of the LC tank circuit. The second capacitor connects the second node and the other terminal of the LC tank circuit. A pair of differential input control signals is applied across the first and the second varactors, respectively, to tune the LC tank circuit thereby generating an oscillator output.

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