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    • 52. 发明授权
    • System and method for improved start-up of self-oscillating electro-mechanical surgical devices
    • 自振式机电手术装置启动的系统和方法
    • US08665031B2
    • 2014-03-04
    • US13597823
    • 2012-08-29
    • James A. Gilbert
    • James A. Gilbert
    • H03B5/30A61B17/32
    • A61B17/320092A61B2017/00017A61B2017/0015
    • An oscillating circuit for determining a resonant frequency of an electro-mechanical oscillating device and for driving the electro-mechanical oscillating device at the determined resonant frequency includes a driving circuit and a start-up, impetus injection circuit. The driving circuit is configured to receive one or more reference signals and further configured to provide a driving signal related to the reference signals to the electro-mechanical oscillating device. The start-up, impetus injection circuit is operably coupled to the electro-mechanical oscillating device and configured to selectively provide a start-up excitation signal to the electro-mechanical oscillation device. The start-up, impetus injection circuit is activated upon start-up of the oscillating circuit to drive the electro-mechanical oscillation device and the driving circuit determines a resonant frequency by measuring a parameter related to the resonant frequency of the electro-mechanical oscillating device.
    • 用于确定机电振荡装置的谐振频率并用于以确定的谐振频率驱动机电振荡装置的振荡电路包括驱动电路和启动动力注入电路。 驱动电路被配置为接收一个或多个参考信号,并且还被配置为向机电摆动装置提供与参考信号相关的驱动信号。 启动动力注入电路可操作地耦合到机电振荡装置并且被配置为选择性地向机电振荡装置提供启动激励信号。 启动动力注入电路在振荡电路启动时被激活以驱动机电振荡装置,并且驱动电路通过测量与机电振荡装置的谐振频率相关的参数来确定谐振频率 。
    • 53. 发明授权
    • Micromechanical component and method for oscillation excitation of an oscillation element of a micromechanical component
    • 用于微机械部件的振荡元件的振荡激励的微机械部件和方法
    • US08624686B2
    • 2014-01-07
    • US12733079
    • 2008-07-02
    • Robert Sattler
    • Robert Sattler
    • H03B5/30
    • B81B3/004B81B2201/042B81B2203/0181G02B26/085G02B26/101G02B26/105
    • A micromechanical component and a method for providing the oscillation excitation of an oscillation element of a micromechanical component, the micromechanical component having a frame, which is connected to a carrier substrate by an outer suspension element, in which the frame being tiltable about a first axis and oscillatory about a second axis that is positioned perpendicular to the first axis, and in which the micromechanical component having an oscillation element that is connected to the frame by an inner suspension element, and is tiltable about the second axis, the outer suspension element being provided to be dimensioned in such a way that a first oscillation of the frame about the second axis and a second oscillation of the oscillation element about the second axis have a maximum coupling.
    • 一种微机械部件和用于提供微机械部件的振荡元件的振荡激励的方法,所述微机械部件具有框架,所述框架通过外部悬挂元件连接到载体基板,所述框架可围绕第一轴线 并且围绕垂直于所述第一轴线定位的第二轴线振荡,并且所述微机械部件具有通过内部悬挂元件连接到所述框架并且可围绕所述第二轴线倾斜的振荡元件,所述外部悬挂元件为 其尺寸设计使得围绕第二轴线的框架的第一振荡和围绕第二轴线的振荡元件的第二振荡具有最大耦合。
    • 54. 发明申请
    • OSCILLATOR
    • 振荡器
    • US20130328635A1
    • 2013-12-12
    • US13893764
    • 2013-05-14
    • CANON KABUSHIKI KAISHA
    • Ryota Sekiguchi
    • H03B5/30
    • H03B5/30H03B7/14H03B2200/0032H03B2200/0084
    • An oscillator configured to oscillate an electromagnetic wave, including: a negative resistance device; a microstrip resonator configured to determine an oscillation frequency of an electromagnetic wave excited by the negative resistance device; a resistance device and a capacitance device, which form a low-impedance circuit configured to suppress parasitic oscillation; and a strip conductor configured to connect the capacitance device of the low-impedance circuit and the microstrip resonator to each other, in which an inductance L of the strip conductor and a capacitance C of the microstrip resonator produce a resonance frequency of ½π√LC, and ¼ of an equivalent wavelength of the resonance frequency is larger than a distance between the negative resistance device and the resistance device of the low-impedance circuit via the strip conductor, is provided.
    • 一种构造成振荡电磁波的振荡器,包括:负电阻装置; 微带谐振器,被配置为确定由所述负电阻装置激励的电磁波的振荡频率; 电阻器件和电容器件,形成抑制寄生振荡的低阻抗电路; 以及带状导体,其被配置为将低阻抗电路和微带谐振器的电容器件彼此连接,其中带状导体的电感L和微带谐振器的电容C产生谐振频率为1 / 和谐振频率的等效波长的1/4大于通过带状导体的低阻抗电路的负电阻器件和电阻器件之间的距离。
    • 56. 发明授权
    • Oscillator with MEMS resonator
    • 具有MEMS谐振器的振荡器
    • US08570112B2
    • 2013-10-29
    • US13702396
    • 2012-06-08
    • Takehiko YamakawaTomohiro IwasakiKunihiko NakamuraKeiji Onishi
    • Takehiko YamakawaTomohiro IwasakiKunihiko NakamuraKeiji Onishi
    • H03B5/30
    • H03B5/30H03L1/02H03L1/027H03L5/00H03L7/183
    • A MEMS oscillator having a feedback-type oscillation circuit including a MEMS resonator and an amplifier, a voltage control unit operable to control a bias voltage applied to an oscillating member of the MEMS resonator, and an auto gain control unit which receives an output from the amplifier and, based on a level of the output, to output an amplitude control signal for controlling a gain of the amplifier to the amplifier such that the level of the output from the amplifier comes to be a predetermined level, wherein the voltage control unit controls the bias voltage applied to the oscillating member based on an operating temperature of the MEMS resonator such that a peak gain of the MEMS resonator comes to have a predetermined value regardless of the operating temperature, and the voltage control unit derives the operating temperature of the MEMS resonator by monitoring the amplitude control signal.
    • 具有包括MEMS谐振器和放大器的反馈型振荡电路的MEMS振荡器,可操作以控制施加到MEMS谐振器的振荡部件的偏置电压的电压控制单元和接收来自所述MEMS谐振器的输出的自动增益控制单元 放大器,并且基于输出的电平,输出用于控制放大器对放大器的增益的幅度控制信号,使得放大器的输出电平达到预定电平,其中电压控制单元控制 基于MEMS谐振器的工作温度施加到振荡构件的偏置电压,使得MEMS谐振器的峰值增益与工作温度无关地具有预定值,并且电压控制单元导出MEMS的工作温度 谐振器通过监控振幅控制信号。
    • 58. 发明授权
    • Semiconductor integrated circuit
    • 半导体集成电路
    • US08558624B2
    • 2013-10-15
    • US12986557
    • 2011-01-07
    • Kazuhisa Raita
    • Kazuhisa Raita
    • H03B5/30H03K3/03
    • H03K3/0315G06F1/08H03K5/19
    • A semiconductor integrated circuit capable of reliably detecting oscillation stop of a vibrator-type oscillation circuit and reliably restarting the oscillation circuit when oscillation stop is detected is provided. The semiconductor integrated circuit includes one or more main oscillation circuits configured to generate a main clock signal by a vibrator, a ring oscillator configured to always operate independently of the main oscillation circuit, a main clock detection circuit configured to monitor the main clock signal on the basis of an output clock signal of the ring oscillator and to determine an operation state of the main oscillation circuit, and an switch circuit configured to switch a combination of elements making up the main oscillation circuit in response to a detection result of the main clock detection circuit.
    • 提供一种半导体集成电路,其能够可靠地检测振动型振荡电路的振荡停止,并且在检测到振荡停止时可靠地重启振荡电路。 半导体集成电路包括一个或多个主振荡电路,其被配置为通过振动器产生主时钟信号,环形振荡器被配置为总是独立于主振荡电路操作;主时钟检测电路,被配置为监视主时钟信号, 并且确定主振荡电路的操作状态;以及开关电路,被配置为响应于主时钟检测的检测结果来切换构成主振荡电路的元件的组合 电路。
    • 60. 发明授权
    • Variable modulus modulator for fractional-N frequency synthesizers
    • 用于分数N频率合成器的可变模数调制器
    • US08451067B2
    • 2013-05-28
    • US13156051
    • 2011-06-08
    • Cedric MorandDavid Canard
    • Cedric MorandDavid Canard
    • H03L7/197H03C3/06H03M7/32H03L7/085H03M7/30H03B5/30
    • H03L7/085H03B5/30H03L7/1974H03M7/3004
    • A variable modulus sigma delta (ΣΔ) modulator for a fractional-N frequency synthesizer in accordance with the present invention may include an integer division unit; a pulse-width modulation (PWM) generator, a ΣΔ noise-shaping unit, a first input FRAC for receiving a first programmable integer, and a second input MOD for receiving a second input, wherein the integer division unit is configured to perform a translation from the first input and the second input into a first output FRAC′ and a second output R, the PWM generator is configured to receive the second input MOD and the second output R, and generate a modulated pulse signal, and the ΣΔ noise-shaping unit is configured to receive the first output and the modulated pulse signal, and generate a sequence whose average equals approximately the first input over the second input.
    • 根据本发明的用于分数N频率合成器的可变模量ΣΔδ(SigmaDelta)调制器可以包括整数除法单元; 脉冲宽度调制(PWM)发生器,SigmaDelta噪声整形单元,用于接收第一可编程整数的第一输入FRAC和用于接收第二输入的第二输入MOD,其中整数除法单元被配置为执行转换 从第一输入和第二输入到第一输出FRAC'和第二输出R,PWM发生器被配置为接收第二输入MOD和第二输出R,并产生调制脉冲信号,并且SigmaDelta噪声整形 单元被配置为接收第一输出和调制脉冲信号,并且生成其平均值等于第二输入端上的第一输入的序列。