公开(公告)号：US09621174B2

公开(公告)日：2017-04-11

申请号：US14709712

申请日：2015-05-12

Applicant: Intel Corporation

Inventor： Fang-Ren Liao ,  Shih-An Yu

IPC: H03L7/00 ,  H03L7/24 ,  H03B5/12 ,  H03L7/099

CPC classification number: H03L7/24 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2201/011 ,  H03B2201/025 ,  H03L7/099

Abstract: A frequency calibration method for calibrating an output frequency of a voltage-controlled oscillator is provided. The voltage-controlled oscillator includes a first capacitor bank, a second capacitor bank, and a third capacitor bank. The first capacitor bank and the third capacitor bank are initially disabled and the second capacitor bank is initially enabled. The method includes, when the initial output frequency is lower than a reference frequency, adjusting the capacitance of the second capacitor bank until the calibrated output frequency is greater than the reference frequency, and when the initial output frequency is greater than the reference frequency, enabling the first capacitor bank and gradually increasing the capacitance of the first capacitor bank until the calibrated output frequency is lower than the reference frequency.

公开(公告)号：US09281826B2

公开(公告)日：2016-03-08

申请号：US14626109

申请日：2015-02-19

Applicant: Sony Corporation

Inventor： Tetsuya Fujiwara ,  Yusuke Tanaka ,  Norihito Suzuki

IPC: H03B5/12 ,  H03L7/06

CPC classification number: H03L7/06 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2201/011 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03J2200/10

Abstract: A circuit includes first and second capacitances arranged on a first path that connects first and second terminals; a first switch arranged between the first capacitance and the second capacitance; a second switch arranged on a second path that connects a reference voltage section and a first node formed between the first capacitance and the first switch; a third switch arranged on a third path that connects the section and a second node formed between the second capacitance and the first switch; a first resistance arranged on a fourth path that connects the first node and a third node formed between the first terminal and the first capacitance; a second resistance arranged on a fifth path that connects the second node and a fourth node formed between the second terminal and the second capacitance; a fourth switch on the fourth path; and a fifth switch on the fifth path.

Abstract translation: 电路包括布置在连接第一和第二端子的第一路径上的第一和第二电容; 布置在所述第一电容和所述第二电容之间的第一开关; 布置在连接参考电压部分和形成在第一电容和第一开关之间的第一节点的第二路径上的第二开关; 布置在连接所述部分的第三路径上的第三开关和形成在所述第二电容和所述第一开关之间的第二节点; 布置在连接所述第一节点和形成在所述第一端子和所述第一电容之间的第三节点的第四路径上的第一电阻; 布置在连接所述第二节点的第五路径上的第二电阻和形成在所述第二端子和所述第二电容之间的第四节点; 第四路上的第四个开关; 和第五路上的第五个开关。

公开(公告)号：US20150256185A1

公开(公告)日：2015-09-10

申请号：US14626109

申请日：2015-02-19

Applicant: SONY CORPORATION

Inventor： Tetsuya Fujiwara ,  Yusuke Tanaka ,  Norihito Suzuki

IPC: H03L7/06 ,  H03K3/36

CPC classification number: H03L7/06 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2201/011 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03J2200/10

Abstract: A circuit includes first and second capacitances arranged on a first path that connects first and second terminals; a first switch arranged between the first capacitance and the second capacitance; a second switch arranged on a second path that connects a reference voltage section and a first node formed between the first capacitance and the first switch; a third switch arranged on a third path that connects the section and a second node formed between the second capacitance and the first switch; a first resistance arranged on a fourth path that connects the first node and a third node formed between the first terminal and the first capacitance; a second resistance arranged on a fifth path that connects the second node and a fourth node formed between the second terminal and the second capacitance; a fourth switch on the fourth path; and a fifth switch on the fifth path.

Abstract translation: 电路包括布置在连接第一和第二端子的第一路径上的第一和第二电容; 布置在所述第一电容和所述第二电容之间的第一开关; 布置在连接参考电压部分和形成在第一电容和第一开关之间的第一节点的第二路径上的第二开关; 布置在连接所述部分的第三路径上的第三开关和形成在所述第二电容和所述第一开关之间的第二节点; 布置在连接所述第一节点和形成在所述第一端子和所述第一电容之间的第三节点的第四路径上的第一电阻; 布置在连接所述第二节点的第五路径上的第二电阻和形成在所述第二端子和所述第二电容之间的第四节点; 第四路上的第四个开关; 和第五路上的第五个开关。

公开(公告)号：US5852388A

公开(公告)日：1998-12-22

申请号：US901258

申请日：1997-07-28

Applicant: Shinya Nakai ,  Masashi Katsumata ,  Yasuyuki Hattori ,  Kenta Nagai ,  Yoshiaki Fukumitsu ,  Takehiko Ishizuka

Inventor： Shinya Nakai ,  Masashi Katsumata ,  Yasuyuki Hattori ,  Kenta Nagai ,  Yoshiaki Fukumitsu ,  Takehiko Ishizuka

IPC: H03B1/00 ,  H03B5/12 ,  H03B5/18

CPC classification number: H03B5/1847 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/124 ,  H03B5/1243 ,  H03B5/1256 ,  H03B5/1293 ,  H03B2200/0024 ,  H03B2200/004 ,  H03B2201/011 ,  H03B2201/012 ,  H03B2201/0208 ,  H03B2201/03

Abstract: A voltage controlled oscillator including a resonator which generates an oscillation signal, a frequency of which is in response to a control signal, and an amplifier which amplifies the oscillation signal. Also included is a frequency adjusting mechanism, as well as a voltage control sensitivity mechanism. In one example, the resonator includes an input terminal to which the control signal is applied, a variable capacitance diode and a main inductor. The oscillation frequency adjusting mechanism includes a first variable capacitor, arranged in parallel with the main inductor of the resonator. In addition, the voltage control sensitivity adjusting mechanism includes a second variable capacitor arranged between the input terminal and the amplifying mechanism, and also arranged between a hot terminal of the variable capacitance diode and a hot terminal of the main inductor.

Abstract translation: 一种压控振荡器，包括产生其频率响应于控制信号的振荡信号的谐振器和放大振荡信号的放大器。 还包括频率调节机构以及电压控制灵敏度机构。 在一个示例中，谐振器包括施加控制信号的输入端子，可变电容二极管和主电感器。 振荡频率调节机构包括与谐振器的主电感并联布置的第一可变电容器。 此外，电压控制灵敏度调节机构包括布置在输入端子和放大机构之间的第二可变电容器，并且还布置在可变电容二极管的热端子和主电感器的热端子之间。

公开(公告)号：US4228539A

公开(公告)日：1980-10-14

申请号：US973797

申请日：1978-12-28

Applicant: Reijo Hamalainen

Inventor： Reijo Hamalainen

IPC: H03B1/00 ,  H03B5/18 ,  H04B1/04 ,  H04B1/03 ,  H03H13/00

CPC classification number: H04B1/04 ,  H03B5/1805 ,  H03B2201/011 ,  H03B2201/015

Abstract: The components of a transistor oscillator are mounted on an end cap rotatably mounted on the outer tube of a cavity resonator which stabilizes the oscillator. The intensity with which a high frequency is applied to the cavity resonator is adjustable by rotation of the end cap.

Abstract translation: 晶体管振荡器的组件安装在可旋转地安装在腔谐振器的外管上的端盖上，该谐振腔稳定振荡器。 高频施加到空腔谐振器的强度可通过端盖的旋转来调节。

公开(公告)号：US3988701A

公开(公告)日：1976-10-26

申请号：US638533

申请日：1975-12-08

Applicant: David L. Funston

Inventor： David L. Funston

IPC: H03B1/00 ,  H03B5/12 ,  H03J5/24 ,  H03J5/32 ,  H04B11/00

CPC classification number: H03J5/246 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1296 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2201/011 ,  H03J2200/10

Abstract: A remote control transmitter utilizing single-pole, single-throw switches for connecting frequency determining capacitors and a battery in circuit with an LC oscillator is shown. The switches can be push-button type switches which close a pair of contacts. The battery is connected in circuit with the oscillator by a semiconductor switch which is closed by closure of any one of the push-button switches. Diodes isolate the frequency determining capacitors from each other.

Abstract translation: 示出了使用用于连接频率确定电容器的单极单掷开关和具有LC振荡器的电路中的电池的遥控发射器。 开关可以是关闭一对触点的按钮式开关。 电池通过半导体开关与振荡器连接，半导体开关通过闭合任何一个按钮开关而闭合。 二极管将频率确定电容彼此隔离。

公开(公告)号：US09793907B2

公开(公告)日：2017-10-17

申请号：US14901914

申请日：2013-11-07

Applicant: HITACHI, LTD.

Inventor： Takashi Kawamoto

IPC: H03L7/06 ,  H03L7/10 ,  H03B5/12 ,  H03L7/083 ,  H03L7/089 ,  H03L7/099

CPC classification number: H03L7/102 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2200/0038 ,  H03B2201/011 ,  H03L7/083 ,  H03L7/0891 ,  H03L7/099

Abstract: A resonator is supplied with voltage from a constant-voltage source, and the constant-voltage source outputs output voltage adjusted by a voltage adjustment signal to the resonator. The resonator outputs a clock signal having a frequency varied by varying capacitance in accordance with a received control signal and a frequency adjustment signal, and a frequency of the clock signal is varied by voltage output from the constant-voltage source.

公开(公告)号：US20160336945A1

公开(公告)日：2016-11-17

申请号：US14709712

申请日：2015-05-12

Applicant: Intel Corporation

Inventor： Fang-Ren LIAO ,  Shih-An YU

IPC: H03L7/24

CPC classification number: H03L7/24 ,  H03B5/1265 ,  H03B2200/005 ,  H03B2201/011 ,  H03B2201/025 ,  H03L7/099

Abstract: A frequency calibration method for calibrating an output frequency of a voltage-controlled oscillator is provided. The voltage-controlled oscillator includes a first capacitor bank, a second capacitor bank, and a third capacitor bank. The first capacitor bank and the third capacitor bank are initially disabled and the second capacitor bank is initially enabled. The method includes, when the initial output frequency is lower than a reference frequency, adjusting the capacitance of the second capacitor bank until the calibrated output frequency is greater than the reference frequency, and when the initial output frequency is greater than the reference frequency, enabling the first capacitor bank and gradually increasing the capacitance of the first capacitor bank until the calibrated output frequency is lower than the reference frequency.

Abstract translation: 提供用于校准压控振荡器的输出频率的频率校准方法。 压控振荡器包括第一电容器组，第二电容器组和第三电容器组。 初始禁止第一电容器组和第三电容器组，并且初始使能第二电容器组。 该方法包括：当初始输出频率低于参考频率时，调整第二电容器组的电容，直到校准输出频率大于参考频率，并且当初始输出频率大于参考频率时，使能 第一电容器组并逐渐增加第一电容器组的电容，直到校准的输出频率低于参考频率。

公开(公告)号：US09490746B1

公开(公告)日：2016-11-08

申请号：US14838022

申请日：2015-08-27

Applicant: Maxlinear Asia Singapore PTE LTD.

Inventor： Srinivasa Rao Madala ,  Bharath Kumar Singareddy ,  Hormoz Djahanshahi ,  Stanley Ho

IPC: H03B5/36

CPC classification number: H03B5/366 ,  H03B5/364 ,  H03B2201/011 ,  H03B2201/0266

Abstract: A voltage-controlled oscillator and a method for tuning oscillations. The oscillator comprises a resonator input connected to an oscillator core and a frequency tuning network. The oscillator core and resonator input are isolated from the frequency tuning network by inductors. The method comprises generating oscillations, tuning the frequency of the oscillations by varying a capacitance, and isolating one or more of noise sources or parasitic capacitances from the tuning network.

Abstract translation: 压控振荡器和调谐振荡的方法。 振荡器包括连接到振荡器核心和频率调谐网络的谐振器输入端。 振荡器芯和谐振器输入通过电感器与频率调谐网络隔离。 该方法包括产生振荡，通过改变电容来调谐振荡的频率，以及从调谐网络隔离噪声源或寄生电容中的一个或多个。

公开(公告)号：US09356557B1

公开(公告)日：2016-05-31

申请号：US14836759

申请日：2015-08-26

Applicant: NXP B.V.

Inventor： Yuan Gao ,  Frank Leong ,  Robert Bogdan Staszewski

IPC: H03B5/06 ,  H03B5/12 ,  H03L3/00 ,  H03B7/06

CPC classification number: H03B5/1228 ,  H03B5/06 ,  H03B5/1212 ,  H03B5/1265 ,  H03B5/1268 ,  H03B2200/0094 ,  H03B2201/011 ,  H03B2201/012 ,  H03B2201/0266 ,  H03J3/20 ,  H03J2200/10 ,  H03J2200/15 ,  H03L3/00

Abstract: In an example embodiment, an apparatus includes an LC circuit having a capacitive circuit and an inductive circuit connected in a circuit loop. In a first mode, a switching circuit in the inductive circuit provides a charge voltage across the LC circuit and prevents oscillation of the LC circuit by opening a switch in the circuit loop. In a second mode, the switching circuit enables the oscillation of the LC circuit by closing the switch in the circuit loop. The adjustable capacitive circuit includes capacitive branch circuits configured to contribute a first amount of capacitance when enabled. For each capacitive branch circuit, an initialization circuit couples the set of capacitors to a respective reference voltage in response to the capacitive branch circuit being disabled and the switching circuit operating in the first mode.

Abstract translation: 在示例性实施例中，一种装置包括具有电容电路的LC电路和以电路回路连接的感应电路。 在第一模式中，感应电路中的开关电路在LC电路两端提供充电电压，并通过打开电路回路中的开关来防止LC电路的振荡。 在第二模式中，开关电路通过闭合电路回路中的开关来实现LC电路的振荡。 可调电容电路包括被配置为在使能时贡献第一电容量的电容性分支电路。 对于每个电容分支电路，初始化电路响应于电容性分支电路被禁用并且开关电路以第一模式工作，将该组电容器耦合到相应的参考电压。