公开(公告)号：US5777522A

公开(公告)日：1998-07-07

申请号：US775991

申请日：1997-01-03

Applicant: Mathew A. Rybicki ,  Michael D. Cave

Inventor： Mathew A. Rybicki ,  Michael D. Cave

IPC: H03B1/00 ,  H03B5/32 ,  H03B5/36 ,  H03K3/03 ,  H03L7/081 ,  H03L7/099 ,  H03L7/00 ,  H03B5/20

CPC classification number: H03L7/081 ,  H03K3/0307 ,  H03L7/099 ,  H03B2200/0062 ,  H03B2201/0208 ,  H03B2201/0291 ,  H03B5/32 ,  H03B5/364 ,  H03B5/368 ,  H03J2200/10

Abstract: A capacitor (200) having an actual physical capacitance value of Cact and is coupled to an oscillator (36). The oscillation frequency of the oscillator (36) can be changed by changing the effective capacitance of the capacitor (200). The actual capacitance (Cact) of capacitor (200) can be altered to appear to be any effective capacitance (Ceff) between zero and a value much greater than Cact by using a Miller effect. In order to alter the effective capacitance of the capacitor (200), a representation of the output osculation signal (16) is provided to a frequency adjust stage (22). The frequency adjust stage either passed the signal (16) with 0.degree. phase shift or with 180.degree. phase shift. In addition to shifting the phase, the stage (22) will amplify or attenuate the signal (16) to result in the phase shifted and amplified/attenuated frequency adjusting signal (24). By providing the signals (16 and 24) to opposite ends of the capacitor (200), Miller affect will alter the effective capacitance of the capacitor (200) thereby altering a frequency of the oscillator (36).

Abstract translation: 一种具有实际物理电容值Cact并耦合到振荡器（36）的电容器（200）。 可以通过改变电容器（200）的有效电容来改变振荡器（36）的振荡频率。 电容器（200）的实际电容（Cact）可以通过使用米勒效应来改变，使其看上去在零和通过Cact大得多的值之间的任何有效电容（Ceff）。 为了改变电容器（200）的有效电容，输出信号信号（16）的表示被提供给频率调节级（22）。 频率调节级通过0°相移或180°相移的信号（16）。 除了移相之外，级（22）将放大或衰减信号（16）以产生相移和放大/衰减的频率调整信号（24）。 通过将信号（16和24）提供给电容器（200）的相对端，米勒的影响将改变电容器（200）的有效电容，从而改变振荡器（36）的频率。

公开(公告)号：US09391622B2

公开(公告)日：2016-07-12

申请号：US14608264

申请日：2015-01-29

Applicant: Sony Corporation

Inventor： Masahisa Tamura ,  Hidenori Takeuchi

IPC: H03L7/00 ,  H03L7/083 ,  H03B5/12 ,  H03L7/085 ,  H03L7/093

CPC classification number: H03L7/083 ,  H03B5/1206 ,  H03B5/124 ,  H03B5/1265 ,  H03B2201/0291 ,  H03J2200/10 ,  H03L7/085 ,  H03L7/093

Abstract: An oscillator circuit includes: an arithmetic section configured to correct a first input code value and thereby generate a first code value that is within a first predetermined range, the arithmetic section being configured to correct a second input code value in correspondence with a correction amount of the first input code value and thereby generate a second code value, and the first predetermined range being narrower than a range of the first input code value; and an oscillation section configured to generate an oscillation signal having a frequency that varies at first sensitivity based on the first code value and varies at second sensitivity based on the second code value, the second sensitivity being higher than the first sensitivity.

Abstract translation: 振荡器电路包括：运算部，被配置为校正第一输入代码值，从而生成在第一预定范围内的第一代码值，所述运算部被配置为根据修正量修正第二输入代码值 第一输入代码值，从而生成第二代码值，并且第一预定范围窄于第一输入代码值的范围; 以及振荡部，被配置为产生具有基于第一代码值在第一灵敏度变化的频率的振荡信号，并且基于第二代码值以第二灵敏度变化，第二灵敏度高于第一灵敏度。

公开(公告)号：US09024696B2

公开(公告)日：2015-05-05

申请号：US13840379

申请日：2013-03-15

Applicant: Innophase, Inc.

Inventor： Xi Li ,  Yang Xu

IPC: H03B5/12

CPC classification number: H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/007 ,  H03B2200/0074 ,  H03B2201/0208 ,  H03B2201/0291 ,  H03D3/22

Abstract: An injection locking oscillator (ILO) comprising a tank circuit having a digitally controlled capacitor bank, a cross-coupled differential transistor pair coupled to the tank circuit, at least one signal injection node, and at least one output node configured to provide an injection locked output signal; a digitally controlled injection-ratio circuit having an injection output coupled to the at least one signal injection node, configured to accept an input signal and to generate an adjustable injection signal applied to the at least one injection node; and, an ILO controller connected to the capacitor bank and the injection-ratio circuit configured to apply a control signal to the capacitor bank to adjust a resonant frequency of the tank circuit and to apply a control signal to the injection-ratio circuit to adjust a signal injection ratio.

Abstract translation: 一种注入锁定振荡器（ILO），包括具有数字控制电容器组的振荡电路，耦合到所述振荡电路的交叉耦合差分晶体管对，至少一个信号注入节点和至少一个输出节点，所述至少一个输出节点被配置为提供注入锁定 输出信号; 数字控制注入比电路，具有耦合到所述至少一个信号注入节点的注入输出，被配置为接受输入信号并产生施加到所述至少一个注入节点的可调注入信号; 以及连接到所述电容器组的ILO控制器和所述注入比电路，所述注入比电路被配置为向所述电容器组施加控制信号以调整所述电容器组的谐振频率，并且向所述注入比电路施加控制信号以调整 信号注入比。

公开(公告)号：US20140266480A1

公开(公告)日：2014-09-18

申请号：US13840379

申请日：2013-03-15

Applicant: INNOPHASE, INC.

Inventor： Xi Li ,  Yang Xu

IPC: H03K3/36

CPC classification number: H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/007 ,  H03B2200/0074 ,  H03B2201/0208 ,  H03B2201/0291 ,  H03D3/22

Abstract: An injection locking oscillator (ILO) comprising a tank circuit having a digitally controlled capacitor bank, a cross-coupled differential transistor pair coupled to the tank circuit, at least one signal injection node, and at least one output node configured to provide an injection locked output signal; a digitally controlled injection-ratio circuit having an injection output coupled to the at least one signal injection node, configured to accept an input signal and to generate an adjustable injection signal applied to the at least one injection node; and, an ILO controller connected to the capacitor bank and the injection-ratio circuit configured to apply a control signal to the capacitor bank to adjust a resonant frequency of the tank circuit and to apply a control signal to the injection-ratio circuit to adjust a signal injection ratio.

Abstract translation: 一种注入锁定振荡器（ILO），包括具有数字控制电容器组的振荡电路，耦合到所述振荡电路的交叉耦合差分晶体管对，至少一个信号注入节点和至少一个输出节点，所述至少一个输出节点被配置为提供注入锁定 输出信号; 数字控制注入比电路，具有耦合到所述至少一个信号注入节点的注入输出，被配置为接受输入信号并产生施加到所述至少一个注入节点的可调注入信号; 以及连接到所述电容器组的ILO控制器和所述注入比电路，所述注入比电路被配置为向所述电容器组施加控制信号以调整所述电容器组的谐振频率，并且向所述注入比电路施加控制信号以调整 信号注入比。

公开(公告)号：US07932789B2

公开(公告)日：2011-04-26

申请号：US12432743

申请日：2009-04-29

Applicant: Robert Hay

Inventor： Robert Hay

IPC: H03B5/36

CPC classification number: H03B5/326 ,  H03B2201/025 ,  H03B2201/0291 ,  H03B2201/031 ,  H03H9/6403

Abstract: A frequency adjustable surface acoustic wave oscillator uses circuitry in which the phase relationship between the corresponding input and output signals and the voltage applied to or received by transducer fingers is controlled in such a manner that the frequency of the surface acoustic wave oscillator is arbitrarily controlled over a wide range by digital means. This provides an oscillator that exhibits a wide tunable frequency range while providing low phase noise.

Abstract translation: 频率可调声表面波振荡器使用电路，其中相应的输入和输出信号之间的相位关系以及施加到或由换能器指状态接收的电压被控制为使声表面波振荡器的频率被任意控制 数字化的广泛范围。 这提供了一个振荡器，具有宽的可调谐频率范围，同时提供低相位噪声。

公开(公告)号：US07155182B2

公开(公告)日：2006-12-26

申请号：US10601815

申请日：2003-06-23

Applicant: Wolfgang Franz Eckl ,  Georg Fischer ,  Gerhard Kaminski

Inventor： Wolfgang Franz Eckl ,  Georg Fischer ,  Gerhard Kaminski

IPC: H04B1/18

CPC classification number: H03F3/195 ,  H03B5/1203 ,  H03B5/1243 ,  H03B2201/0208 ,  H03B2201/0291 ,  H03F2200/111 ,  H03J3/185 ,  H03J2200/10

Abstract: The invention proposes a device for high-frequency and/or radio-frequency tuning comprising within one IC-package a first variable capacitor (C1) and at least one second capacitor (C2), each of the at least one second capacitor (C2) being fixed or variable respectively, at least one signal path connected to the first variable capacitor (C1) and providing at least one input and one output port (rf-port1, rf-port2) and at least one controllable switching means (SC2) for individually connecting and disconnecting at least one of the at least one second capacitor (C2) into the signal path or from the signal path, in particular in parallel to the first variable capacitor (C1).

Abstract translation: 本发明提出了一种用于高频和/或射频调谐的装置，其包括在一个IC封装内的第一可变电容器（C 1> 1）和至少一个第二电容器（C 2' / SUB>），所述至少一个第二电容器（C SUB2）中的每一个分别是固定的或可变的，至少一个连接到第一可变电容器（C1 >）并且提供至少一个输入和一个输出端口（rf端口1，rf端口2）和至少一个可控开关装置（S C2 C2），用于单独地连接和断开以下各项中的至少一个： 所述至少一个第二电容器（C SUB2）进入信号路径或信号路径，特别是并联于第一可变电容器（C SUB1）。

公开(公告)号：US06563390B1

公开(公告)日：2003-05-13

申请号：US09753063

申请日：2000-12-29

Applicant: John W. Kizziar

Inventor： John W. Kizziar

IPC: H03B532

CPC classification number: H03B5/366 ,  H03B2201/0291 ,  H03J2200/10

Abstract: An apparatus comprising a digitally controlled oscillator and a frequency tuning array. The digitally controlled oscillator may be configured to finely tune an output signal having a frequency in response to a digital signal. The frequency tuning array may be configured to generate the digital signal.

Abstract translation: 一种包括数字控制振荡器和频率调谐阵列的装置。 数字控制振荡器可以被配置为微调响应于数字信号的具有频率的输出信号。 频率调谐阵列可以被配置为产生数字信号。

公开(公告)号：US20010002804A1

公开(公告)日：2001-06-07

申请号：US09373035

申请日：1997-04-15

Inventor： CHRISTOPHER R. KOSZARSKY

IPC: H03B005/08 ,  H03B005/12 ,  H03L007/099 ,  H03L007/18

CPC classification number: H03L7/18 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2201/0291 ,  H03L7/099 ,  H03L7/10 ,  H03L2207/06

Abstract: A frequency synthesizer has a voltage controlled oscillator comprising a voltage controlled capacitor having a first terminal and a second terminal. A positive control voltage is applied to the first terminal of the voltage controlled capacitor and a negative control voltage is applied to the second terminal of the voltage controlled capacitor, causing the varactor to operate in a reverse biased state. A circuit for generating a negative control voltage is provided in a phase-locked loop circuit. The circuit includes a negative DC generator for generating a negative DC voltage from an AC signal, and a programmable variable attenuator for selectably attenuating the negative control voltage.

Abstract translation: 频率合成器具有压控振荡器，其包括具有第一端子和第二端子的压控电容器。 正压控制电压被施加到压控电容器的第一端，并且负控制电压被施加到压控电容器的第二端子，导致变容二极管以反向偏置状态工作。 用于产生负控制电压的电路设置在锁相环电路中。 该电路包括用于从AC信号产生负DC电压的负DC发生器和用于可选择地衰减负控制电压的可编程可变衰减器。

公开(公告)号：US5983084A

公开(公告)日：1999-11-09

申请号：US870188

申请日：1997-06-06

Applicant: Xing Ping Lin

Inventor： Xing Ping Lin

IPC: H03B1/00 ,  H03B5/32 ,  H04B1/04

CPC classification number: H03B5/326 ,  H03B2201/0291 ,  H04B2001/0491

Abstract: A transmitter for use with a receiver responsive to a function request signal transmitted by said transmitter for performing a requested function. The transmitter includes a controller for providing a function command and an LC oscillator for providing the request signal at a fixed frequency in response to the command from the controller. The oscillator includes a semi-conductor having first, second, and third electrodes and a tank circuit including first, second, and third impedances. A surface acoustic wave resonator is connected from the first electrode to ground. A feedback capacitor is connected from the second electrode to said first electrode for reducing spurious frequency signals.

Abstract translation: 响应于由所述发射机发送的用于执行所请求的功能的功能请求信号而与接收机一起使用的发射机。 发射机包括用于提供功能命令的控制器和用于响应于来自控制器的命令以固定频率提供请求信号的LC振荡器。 振荡器包括具有第一，第二和第三电极的半导体和包括第一，第二和第三阻抗的储能电路。 表面声波谐振器从第一电极连接到地。 反馈电容器从第二电极连接到所述第一电极，用于减少寄生频率信号。

公开(公告)号：US5712601A

公开(公告)日：1998-01-27

申请号：US603869

申请日：1996-02-22

Applicant: Yoshikazu Shimada ,  Isoshi Takeda

Inventor： Yoshikazu Shimada ,  Isoshi Takeda

IPC: H03B5/20 ,  H03B1/00 ,  H03B5/12 ,  H03B5/24

CPC classification number: H03B5/24 ,  H03B2201/0291

Abstract: An oscillation circuit is provided which is easily adjusted with a high degree of accuracy. The oscillation circuit including a filter having a time constant and an inverting amplifier which feeds back the output of the filter to the input side of the filter so that an oscillation condition is fulfilled. The filter includes a gm amplifier formed of a differential amplifier, and a capacitor. The constant current source of the differential amplifier is connected to a free running oscillation frequency adjusting circuit. The adjusting circuit includes a microcomputer, a decoder which decodes the output data of the microcomputer and a switching circuit driven by the output of the decoder and varying the current value according to the output of the decoder. A current in accordance with a current value depending on the setting of the switch flows through the constant current source.

Abstract translation: 提供了可以高精度地容易地调节的振荡电路。 该振荡电路包括具有时间常数的滤波器和反相放大器，其将滤波器的输出反馈到滤波器的输入侧，使得满足振荡条件。 滤波器包括由差分放大器和电容器组成的gm放大器。 差分放大器的恒流源连接到自由振荡频率调节电路。 调整电路包括：微型计算机，对微型计算机的输出数据进行解码的解码器和由解码器的输出驱动的切换电路，并根据解码器的输出改变电流值。 根据当前值取决于开关的设置的电流流过恒流源。