公开(公告)号：US09473115B2

公开(公告)日：2016-10-18

申请号：US14944925

申请日：2015-11-18

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Mayank Raj ,  Azita Emami

IPC: H03B27/00 ,  H03K3/03 ,  H03L7/099 ,  H03L7/24

CPC classification number: H03K3/0315 ,  H03B27/00 ,  H03B2201/038 ,  H03L7/0995 ,  H03L7/24

Abstract: Technologies are generally described for quadrature-based injection-locking of ring oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal.

公开(公告)号：US20160226447A1

公开(公告)日：2016-08-04

申请号：US15014283

申请日：2016-02-03

Applicant: Seiko Epson Corporation

Inventor： Akihiro FUKUZAWA

IPC: H03B5/32

CPC classification number: H03B5/32 ,  H03B5/129 ,  H03B2200/0062 ,  H03B2201/0283 ,  H03B2201/038 ,  H03B2202/06

Abstract: An oscillator includes an input terminal, an oscillation circuit section configured to cause a resonator to resonate to output an oscillator signal, a digital input section to which a signal for controlling an oscillation frequency of the oscillation circuit section is input via the input terminal, and a first bias circuit section including a constant current source configured to supply a reference current to the digital input section.

Abstract translation: 振荡器包括输入端子，被配置为使谐振器谐振以输出振荡器信号的振荡电路部分，经由输入端子输入用于控制振荡电路部分的振荡频率的信号的数字输入部分;以及 第一偏置电路部分，包括被配置为向数字输入部分提供参考电流的恒流源。

公开(公告)号：US09214897B2

公开(公告)日：2015-12-15

申请号：US14453979

申请日：2014-08-07

Applicant: Seiko Epson Corporation

Inventor： Tsuyoshi Yoneyama

IPC: H03B5/04 ,  H03B5/30 ,  H03L1/02 ,  H03B5/36

CPC classification number: H03B5/36 ,  H03B5/04 ,  H03B5/30 ,  H03B2201/0208 ,  H03B2201/025 ,  H03B2201/038 ,  H03L1/022 ,  H03L1/026 ,  H03L1/028

Abstract: An oscillation circuit includes a temperature compensating section to which electric power is supplied from a main power supply and a backup power supply, an oscillating section, a function of which is compensated by a signal from the temperature compensating section, and a switch and a power-supply monitoring circuit configured to select, when the temperature compensating section is not operating, at least one of the main power supply and the backup power supply and control connection to the temperature compensating section.

Abstract translation: 振荡电路包括从主电源和备用电源供给电力的温度补偿部，其功能由来自温度补偿部的信号补偿的振荡部，以及开关和功率 所述供电监视电路被配置为当所述温度补偿部不工作时，选择所述主电源和所述备用电源和所述温度补偿部的控制连接中的至少一个。

公开(公告)号：US08957735B2

公开(公告)日：2015-02-17

申请号：US13872752

申请日：2013-04-29

Applicant: Kabushiki Kaisha Toshiba

Inventor： Akihide Sai

IPC: H03L1/00 ,  H03L7/08 ,  H03L7/099

CPC classification number: H03L7/0991 ,  H03B2201/038 ,  H03B2202/042 ,  H03L1/00 ,  H03L7/085 ,  H03L7/099 ,  H03L2207/06 ,  H03L2207/50

Abstract: According to one embodiment, a phase locked loop (PLL) circuit includes an application unit, a correlator, an integrator and a power supply noise canceller. The application unit applies the test signal to a power supply voltage. The correlator extracts a frequency error signal as a monitor signal and calculates a correlation value for the test signal and the monitor signal to generate a correlation signal. The integrator integrates the correlation signal to generate an integral signal. The power supply noise canceller provides a cancellation gain corresponding to the integral signal to the power supply voltage to which the test signal is applied, to generate a control signal.

Abstract translation: 根据一个实施例，锁相环（PLL）电路包括应用单元，相关器，积分器和电源噪声消除器。 应用单元将测试信号应用于电源电压。 相关器提取频率误差信号作为监视信号，并且计算测试信号和监视信号的相关值以产生相关信号。 积分器对相关信号进行积分以产生积分信号。 电源噪声消除器提供对应于与施加测试信号的电源电压的积分信号相对应的消除增益，以产生控制信号。

公开(公告)号：US20140292420A1

公开(公告)日：2014-10-02

申请号：US14225079

申请日：2014-03-25

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Michael M. Green ,  Xiaoyan Gui

IPC: H03K3/03

CPC classification number: H03K3/0322 ,  H03B5/04 ,  H03B27/00 ,  H03B2201/038 ,  H03B2202/042 ,  H03K3/011 ,  H03L1/00

Abstract: High-speed CMOS ring voltage controlled oscillators with low supply sensitivity have been disclosed. According to one embodiment, a CML ring oscillator comprises a CML negative impedance compensation circuit comprising two cross coupled transistors and a resistor connected to the two transistors for resistive biasing and a CML interpolating delay cell connected in parallel with the CML negative impedance compensation. An impedance change of the CML negative impedance compensation due to supply variation counteracts an impedance change of the CML interpolating delay cell.

Abstract translation: 已经公开了具有低供应灵敏度的高速CMOS环形电压控制振荡器。 根据一个实施例，CML环形振荡器包括CML负阻抗补偿电路，其包括两个交叉耦合晶体管和连接到两个用于电阻偏置的晶体管的电阻器以及与CML负阻抗补偿并联连接的CML内插延迟单元。 由于电源变化引起的CML负阻抗补偿的阻抗变化抵消了CML内插延迟单元的阻抗变化。

公开(公告)号：US20240106393A1

公开(公告)日：2024-03-28

申请号：US18475296

申请日：2023-09-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Kensaku ISOHATA ,  Katsuhiko MAKI

IPC: H03B5/32 ,  H03B5/04

CPC classification number: H03B5/32 ,  H03B5/04 ,  H03B2201/038

Abstract: A method for manufacturing oscillators of a plurality of types including a first oscillator and a second oscillator, the method includes: manufacturing the first oscillator, the manufacturing the first oscillator including a first-oscillator first step of mounting, to a first container, a first resonator element and a first circuit element configured to oscillate the first resonator element to generate a first oscillation signal, and a first-oscillator second step of mounting, to the first container, a second resonator element whose oscillation frequency is controlled based on the first oscillation signal; and manufacturing the second oscillator, the manufacturing the second oscillator including a second-oscillator first step of mounting a third resonator element and a second circuit element to a second container of the same type as the first container, the third resonator element being of the same type as the first resonator element and the second circuit element being of the same type as the first circuit element and being configured to oscillate the third resonator element to generate a second oscillation signal, and a second-oscillator second step of mounting, to the second container, a fourth resonator element whose oscillation frequency is controlled based on the second oscillation signal and whose frequency is different from the frequency of the second resonator element.

公开(公告)号：US11817823B2

公开(公告)日：2023-11-14

申请号：US17748904

申请日：2022-05-19

Applicant: Apple Inc.

Inventor： Hongrui Wang ,  Abbas Komijani

IPC: H03L1/00 ,  H04B1/40 ,  H03B5/12

CPC classification number: H03B5/12 ,  H03L1/00 ,  H04B1/40 ,  H03B2200/009 ,  H03B2200/0092 ,  H03B2201/038

Abstract: To prevent an undesired operating mode of voltage-controlled oscillation (VCO) circuitry from dominating a desired operating mode (e.g., an in-phase operating mode or an out-of-phase operating mode), a supply reset and ramp pulse may be provided to the VCO circuitry when switching to a new mode, such that supply voltage to the VCO circuitry is reset (e.g., set to 0 V or another reference voltage), and gradually increased or ramped up back to a steady-state voltage (e.g., used to maintain a mode) within a time duration. Additionally or alternatively, a switch control bootstrap pulse may be provided to the VCO circuitry that is bootstrapped to (e.g., applied instantaneously or concurrently with) switching the VCO circuitry to the new mode. After a time duration, the VCO circuitry may switch back to a steady-state voltage (e.g., used to maintain the new mode).

公开(公告)号：US20170026049A1

公开(公告)日：2017-01-26

申请号：US15039105

申请日：2013-12-05

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Lars Sundström ,  Robert Baldemair ,  Ning He

IPC: H03L7/107 ,  H03B5/32 ,  H04W28/14 ,  H03L7/099

CPC classification number: H03L7/1075 ,  H03B5/32 ,  H03B2200/0062 ,  H03B2200/009 ,  H03B2201/038 ,  H03L7/099 ,  H04W28/14

Abstract: A reference oscillator arrangement is provided for a communication apparatus capable of communicating according to a plurality of transport formats. The reference oscillator arrangement comprises a reference oscillator controller; a resonator core comprising a reference resonator and a driving circuit for the reference resonator, wherein the resonator core is arranged to provide an oscillating signal at a frequency of the reference resonator; and a reference oscillator buffer arrangement, connected to the resonator core, comprising an active circuit arranged to provide a reference oscillator output based on the oscillating signal. The reference oscillator controller is arranged to receive information about an applied transport format and control the driving circuit and/or the active circuit based on the information about the applied transport format. An oscillator arrangement, a communication device, methods therefor and a computer program are also disclosed.

Abstract translation: 为能够根据多种传输格式进行通信的通信装置提供参考振荡器装置。 参考振荡器装置包括参考振荡器控制器; 谐振器芯，包括参考谐振器和用于参考谐振器的驱动电路，其中所述谐振器芯被布置成在参考谐振器的频率处提供振荡信号; 以及连接到所述谐振器芯的参考振荡器缓冲器装置，包括有源电路，其被布置为基于所述振荡信号提供参考振荡器输出。 参考振荡器控制器被配置为接收关于所应用的传输格式的信息，并且基于关于所应用的传输格式的信息来控制驱动电路和/或有源电路。 还公开了振荡器装置，通信装置，其方法和计算机程序。

公开(公告)号：US09325277B1

公开(公告)日：2016-04-26

申请号：US14571805

申请日：2014-12-16

Applicant: Xilinx, Inc.

Inventor： Adebabay M. Bekele ,  Parag Upadhyaya

IPC: H03B5/12

CPC classification number: H03B5/1253 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1271 ,  H03B5/1278 ,  H03B5/129 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03B2201/0291 ,  H03B2201/031 ,  H03B2201/038

Abstract: Voltage-controlled oscillation is described. In an apparatus therefor, an inductor has a tap and has or is coupled to a positive-side output node and a negative side output node. The tap is coupled to receive a first current. A coarse grain capacitor array is coupled to the positive-side output node and the negative side output node and is coupled to respectively receive select signals. A varactor is coupled to the positive-side output node and the negative side output node and is coupled to receive a control voltage. The varactor includes MuGFETs. A transconductance cell is coupled to the positive-side output node and the negative side output node, and the transconductance cell has a common node. A frequency scaled resistor network is coupled to the common node and is coupled to receive the select signals for a resistance for a path for a second current.

Abstract translation: 描述了压控振荡。 在其装置中，电感器具有抽头并且具有或耦合到正侧输出节点和负侧输出节点。 抽头被耦合以接收第一电流。 粗粒电容器阵列耦合到正侧输出节点和负侧输出节点，并被耦合以分别接收选择信号。 变容二极管耦合到正侧输出节点和负侧输出节点，并耦合以接收控制电压。 变异反应器包括MuGFETs。 跨导单元耦合到正侧输出节点和负侧输出节点，并且跨导单元具有公共节点。 频率比例电阻网络耦合到公共节点，并被耦合以接收用于第二电流的路径的电阻的选择信号。

公开(公告)号：US20160079966A1

公开(公告)日：2016-03-17

申请号：US14944925

申请日：2015-11-18

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Mayank Raj ,  Azita Emami

IPC: H03K3/03

CPC classification number: H03K3/0315 ,  H03B27/00 ,  H03B2201/038 ,  H03L7/0995 ,  H03L7/24

Abstract: Technologies are generally described for quadrature-based injection-locking offing oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal.

Abstract translation: 技术通常描述为基于正交的注射锁定振荡器。 在一些示例中，外部信号可以被注入到环形振荡器中。 相位信号可以从环形振荡器内测量，并用于确定表征外部信号和环形振荡器固有频率之间的频率差的均方根误差（MQE）。 然后可以从MQE生成控制信号，并用于调整环形振荡器固有频率以减小环形振荡器固有频率与外部信号之间的差异。