公开(公告)号：US20070103248A1

公开(公告)日：2007-05-10

申请号：US11594102

申请日：2006-11-08

Applicant: Takahiro Nakamura ,  Toru Masuda ,  Tomomitsu Kitamura ,  Norio Hayashi ,  Hiroshi Mori

Inventor： Takahiro Nakamura ,  Toru Masuda ,  Tomomitsu Kitamura ,  Norio Hayashi ,  Hiroshi Mori

IPC: H03B5/08

CPC classification number: H03J3/20 ,  H03B5/1215 ,  H03B5/1218 ,  H03B5/1228 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1293 ,  H03B5/1296 ,  H03B2201/0208 ,  H03B2201/0216 ,  H03D3/007 ,  H03J2200/10

Abstract: An LC resonant circuit of an oscillator includes a parallel circuit of an inductor, a first fine adjustable capacitor and a first capacitor bank, and a series circuit of a second fine adjustable capacitor and a second capacitor bank. A frequency conversion gain of the oscillator is the sum of a frequency conversion gain of the oscillator based upon the first fine adjustable capacitor which decreases according to increase of a capacitance value of the capacitor bank and a frequency conversion gain based upon the second fine adjustable capacitor which increases according to increase of a capacitance value of the second capacitor bank. Accordingly, an LC resonant circuit for an oscillator with reduced fluctuation of a frequency conversion gain, and an oscillator and a data processing equipment using the same are provided.

Abstract translation: 振荡器的LC谐振电路包括电感器的并联电路，第一微调可调电容器和第一电容器组，以及第二精细可调电容器和第二电容器组的串联电路。 振荡器的变频增益是基于根据电容器组的电容值的增加而减小的第一微调电容器的振荡器的频率转换增益和基于第二微调电容器的频率转换增益的和 其根据第二电容器组的电容值的增加而增加。 因此，提供了一种用于具有降低的变频增益波动的振荡器的LC谐振电路，以及使用其的振荡器和数据处理设备。

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：US20060261902A1

公开(公告)日：2006-11-23

申请号：US11435757

申请日：2006-05-18

Applicant: Toru Masuda ,  Hiroshi Mori

Inventor： Toru Masuda ,  Hiroshi Mori

IPC: H03B5/12

CPC classification number: H03B5/1231 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2201/0208 ,  H03J2200/10

Abstract: The capacitance of the capacitor with the constant capacitance is equivalently reduced in the capacitance of a resonant capacitor in a voltage control oscillator to increase the variable amount of the capacitance of the resonant capacitor, and to expand an oscillation frequency range. There are provided a differential negative conductance generator circuit having two resonation nodes for differential output, a differential resonant circuit having a variable capacitance that is controlled by voltage control and an inductance connected in parallel to each other, and a differential negative impedance circuit. A resonant circuit and a negative impedance circuit are connected between the resonation nodes. The capacitor with the constant capacitance that occurs between the resonation nodes is reduced by the negative impedance of the negative impedance circuit. The capacitor with the constant capacitance is represented by floating capacitors that occur between one of the resonation nodes and a ground potential and between the other resonation node and the ground potential, respectively.

公开(公告)号：US20060238265A1

公开(公告)日：2006-10-26

申请号：US11112527

申请日：2005-04-22

Applicant: Babak Soltanian ,  Herschel Ainspan ,  Daniel Friedman ,  Woogeun Rhee

Inventor： Babak Soltanian ,  Herschel Ainspan ,  Daniel Friedman ,  Woogeun Rhee

IPC: H03B5/08

CPC classification number: H03L7/099 ,  H03B5/1209 ,  H03B5/1228 ,  H03B5/1253 ,  H03B2201/0208 ,  H03L2207/06

Abstract: A method of differentially controlling an LC voltage controlled oscillator (VCO) includes providing an LC-VCO comprising at least one inductor, measuring an inductor common voltage (CMV) output at a point along the at least one inductor, utilizing the measured inductor CMV as an input to a charge pump, and outputting from the charge pump a plurality of differential control voltages to control an output of the LC-VCO.

Abstract translation: 一种差分控制LC压控振荡器（VCO）的方法包括提供包括至少一个电感器的LC-VCO，测量沿着至少一个电感器的点处的电感器公共电压（CMV）输出，利用测量的电感器CMV作为 电荷泵的输入，并从电荷泵输出多个差分控制电压以控制LC-VCO的输出。

公开(公告)号：US20060226923A1

公开(公告)日：2006-10-12

申请号：US10545653

申请日：2004-02-10

Applicant: Hugo Veenstra ,  Edwin Van Der Heijden ,  Wei Chan

Inventor： Hugo Veenstra ,  Edwin Van Der Heijden ,  Wei Chan

IPC: H03B5/08

CPC classification number: H03B5/1231 ,  H03B5/1218 ,  H03B5/1243 ,  H03B27/00 ,  H03B2200/0074 ,  H03B2201/0208

Abstract: Present invention relates to an oscillator circuit comprising: resonator means (102) and, first and second emitter followers (116, 118) being symmetrically coupled to the resonator means and been connected to further emitter followers (120, 122) for providing capacitive loading.

Abstract translation: 振荡器电路技术领域本发明涉及一种振荡器电路，包括：谐振器装置（102）以及与谐振器装置对称耦合的第一和第二发射极跟随器（116,118），并连接到另外的发射极跟随器（120,122），用于提供电容负载。

公开(公告)号：US07046097B2

公开(公告)日：2006-05-16

申请号：US11069368

申请日：2005-03-01

Applicant: Mike Kappes ,  Terje Gloerstad

Inventor： Mike Kappes ,  Terje Gloerstad

IPC: H03B5/20

CPC classification number: H03L7/00 ,  H03B2201/0208 ,  H03B2201/025 ,  H03K3/0231

Abstract: An integrated oscillator that may be used as a time clock includes circuitry that oscillates about an RC time constant, which RC time constant is adjustable to provide a desired frequency of oscillation. More specifically, the oscillator includes a capacitor array that has a plurality of capacitors coupled in parallel wherein each capacitor may be selectively included into the RC time constant or selectively excluded there from. Rather than setting the capacitance values to a desired capacitance value, a system for adjusting the time constant includes circuitry for measuring an output frequency and for comparing that to a certified frequency source wherein the time constant is adjusted by adding or removing capacitors from the capacitor array until the frequency of the internal clock matches an expected frequency.

公开(公告)号：US20050270429A1

公开(公告)日：2005-12-08

申请号：US11142431

申请日：2005-06-01

Applicant: Masaki Yamamoto

Inventor： Masaki Yamamoto

IPC: H03B1/00 ,  H03J3/32 ,  H04B1/18 ,  H04B1/26 ,  H04N5/44 ,  H04N5/50

CPC classification number: H03J3/32 ,  H03B2201/0208

Abstract: First varactor diodes for changing tuning frequency are provided at tuning circuits, a second varactor diode for changing an oscillating frequency is provided at an oscillator, tuning voltages between both ends of the first varactor diodes become equal to the tuning voltage between both ends of the second varactor diode when a television tuner receives a television signal, and the tuning voltages between both ends of the first varactor diodes become lower than the tuning voltage between both ends of the second varactor diode when the television tuner receives a FM broadcasting signal.

Abstract translation: 在调谐电路中提供用于改变调谐频率的第一变容二极管，在振荡器处提供用于改变振荡频率的第二变容二极管，第一变容二极管二极管两端之间的调谐电压等于第二变容二极管两端之间的调谐电压 当电视调谐器接收到电视信号时，第一变容二极管的两端之间的调谐电压变得低于第二变容二极管的两端之间的调谐电压，当电视调谐器接收到FM广播信号时，电容调谐器接收到电视信号。

公开(公告)号：US20050212604A1

公开(公告)日：2005-09-29

申请号：US11055585

申请日：2005-02-10

Applicant: Russell Cyr ,  Geoffrey Dawe

Inventor： Russell Cyr ,  Geoffrey Dawe

IPC: H02M3/24 ,  H03B1/00 ,  H03B5/12 ,  H03C3/22 ,  H03D3/00 ,  H03F1/06 ,  H03F1/08 ,  H03F1/22 ,  H03F1/26 ,  H03F1/32 ,  H03F3/19 ,  H03F3/191 ,  H03F3/195 ,  H03F3/45 ,  H03F3/60 ,  H03G1/00 ,  H03G3/30 ,  H03L7/00 ,  H03L7/099 ,  H03L7/10 ,  H03L7/185 ,  H04B1/00 ,  H04B1/40 ,  H04L12/28 ,  H04L12/56

CPC classification number: H03F1/26 ,  H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L2223/6611 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/484 ,  H01L2224/49171 ,  H01L2224/49175 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01027 ,  H01L2924/01032 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01082 ,  H01L2924/01083 ,  H01L2924/014 ,  H01L2924/12034 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/1433 ,  H01L2924/1461 ,  H01L2924/15153 ,  H01L2924/15157 ,  H01L2924/15165 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03C3/225 ,  H03D3/007 ,  H03F1/0205 ,  H03F1/08 ,  H03F1/223 ,  H03F1/3294 ,  H03F3/191 ,  H03F3/195 ,  H03F3/4521 ,  H03F3/60 ,  H03F2200/111 ,  H03F2200/225 ,  H03F2200/294 ,  H03F2200/331 ,  H03F2200/366 ,  H03F2200/372 ,  H03F2200/391 ,  H03F2200/429 ,  H03F2200/543 ,  H03F2200/78 ,  H03F2203/45256 ,  H03G3/3068 ,  H03J2200/10 ,  H03L7/099 ,  H03L7/10 ,  H03L7/185 ,  H04B1/006 ,  H04B1/40 ,  H04W24/00 ,  H04W80/00 ,  H04W88/02 ,  H01L2924/00011 ,  H01L2224/45099 ,  H01L2924/00

Abstract: A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.

Abstract translation: 一种完全集成的可编程混合信号无线电收发器，包括射频集成电路（RFIC），其频率和协议与数字输入和输出无关，无线电收发器可编程并可配置用于多个无线电频带和标准，并且能够连接 到许多网络和服务提供商。 RFIC包括可调谐谐振电路，其包括具有电感的传输线，响应于第一控制信号被配置为切换到可调谐谐振电路中的多个可切换电容器，以及至少一个可变电容器，其可以是 响应于第二控制信号而变化，其中响应于控制多个可切换电容器的第一电容值的第一和第二控制信号，电谐振电路的中心谐振频率和至少该第二电容值的第二电容值 一个可变电容器。

公开(公告)号：US20050168297A1

公开(公告)日：2005-08-04

申请号：US11095117

申请日：2005-03-31

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03B1/00 ,  H03B5/12 ,  H03D7/18 ,  H03J5/24 ,  H03L7/00 ,  H03L7/089 ,  H03L7/099 ,  H03L7/10 ,  H03L7/18 ,  H03B5/00

CPC classification number: H03L7/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B2200/0046 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/02 ,  H03B2201/0208 ,  H03B2201/025 ,  H03D7/165 ,  H03D7/18 ,  H03J5/244 ,  H03J2200/10 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107 ,  H03L7/1072 ,  H03L7/18

Abstract: A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal to perform band-select tuning of the VCO. The gain compensator compensates for the variable VCO gain by generating a charge pump reference current that is based on the same capacitor control signal that controls the fixed capacitors in the LC circuit. The gain compensator generates the charge pump reference current by replicating a reference scale current using unit current sources. The number of times the reference scale current is replicated is based on the fixed capacitance that is switched-in to the LC circuit and therefore the frequency band of the PLL. The reference scale current is generated based on a PLL control that specifics certain PLL characteristics such as reference frequency, loop bandwidth, and loop damping. Therefore, the reference pump current can be efficiently optimized for changing PLL operating conditions, in addition to compensating for variable VCO gain.

公开(公告)号：US20050128008A1

公开(公告)日：2005-06-16

申请号：US10989896

申请日：2004-11-16

Applicant: Colin Perry ,  Stephen Parry ,  Alessandro Deidda ,  Christopher Shepherd

Inventor： Colin Perry ,  Stephen Parry ,  Alessandro Deidda ,  Christopher Shepherd

IPC: H03J3/18 ,  H03L7/00

CPC classification number: H03C1/12 ,  H03B5/1215 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0092 ,  H03B2201/0208 ,  H03J3/185 ,  H03J2200/10

Abstract: A variable capacitance network is disclosed, comprising a plurality of capacitance arms connected in parallel with each other between first and second terminals of the network. Each capacitance arm has a varactor and a series capacitor in series with the varactor A control input applies a common control signal to the junctions between the varactors and their associated series capacitors, to allow for simultaneous control of each varactor.

Abstract translation: 公开了一种可变电容网络，包括在网络的第一和第二终端之间彼此并联连接的多个电容臂。 每个电容臂具有变容二极管和与变容二极管串联的串联电容器。控制输入端将通用控制信号施加到变容二极管及其相关串联电容器之间的接点，以允许同时控制每个变容二极管。