公开(公告)号：US20070268076A1

公开(公告)日：2007-11-22

申请号：US11754804

申请日：2007-05-29

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03L7/08

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.

Abstract translation: 增益补偿器补偿锁相环（PLL）中变容二极管调谐电压调谐振荡器（VCO）的增益变化。 VCO包括具有多个固定电容器的并联LC电路，其可以根据电容器控制信号切换或切换出LC电路，以执行VCO的频带选择调谐。 增益补偿器通过产生基于控制LC电路中的固定电容器的相同电容器控制信号的电荷泵参考电流来补偿可变VCO增益。 增益补偿器通过使用单位电流源复制参考刻度电流来产生电荷泵参考电流。 参考比例电流复制的次数是基于切换到LC电路的固定电容，因此是PLL的频带。 参考比例电流是基于特定于参考频率，环路带宽和环路阻尼等特定PLL特性的PLL控制产生的。 因此，除了补偿可变VCO增益之外，参考泵电流可以有效地优化用于改变PLL工作条件。

公开(公告)号：US20050083143A1

公开(公告)日：2005-04-21

申请号：US10965027

申请日：2004-10-15

Applicant: Ramon Gomez ,  Lawrence Burns ,  Alexandre Kral

Inventor： Ramon Gomez ,  Lawrence Burns ,  Alexandre Kral

IPC: H03B5/12 ,  H03L7/00

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03J2200/10

Abstract: A varactor folding technique reduces noise in controllable electronic oscillators through the use of a series of varactors having relatively small capacitance. A folding circuit provides control signals to the varactors in a sequential manner to provide a relatively smooth change in the total capacitance of the oscillator. Consequently, effective control of the oscillator is achieved with accompanying reductions in oscillator noise such as flicker noise.

Abstract translation: 变容二极管折叠技术通过使用具有相对较小电容的一系列变容二极管来降低可控电子振荡器中的噪声。 折叠电路以顺序方式向变容二极管提供控制信号，以提供振荡器的总电容的相对平滑的变化。 因此，随着振荡器噪声（如闪烁噪声）的减少，实现了振荡器的有效控制。

公开(公告)号：US20100308918A1

公开(公告)日：2010-12-09

申请号：US12856290

申请日：2010-08-13

Applicant: Ramon Gomez ,  Jianhong Xiao ,  Takayuki Hayashi

Inventor： Ramon Gomez ,  Jianhong Xiao ,  Takayuki Hayashi

IPC: H03G3/30

CPC classification number: H03G3/001 ,  H03G5/28

Abstract: Embodiments of the present invention provide systems and methods for automatic amplifier gain profile control, including a method for automatically configuring a variable gain profile amplifier according to received input and a variable gain profile amplification system. Further, embodiments of the present invention provide systems and methods for increased gain profile accuracy, including methods and systems to reduce the effects of temperature and/or process variations on the gain profile of an amplifier.

Abstract translation: 本发明的实施例提供了用于自动放大器增益分布控制的系统和方法，包括根据接收的输入和可变增益分布放大系统自动配置可变增益曲线放大器的方法。 此外，本发明的实施例提供用于增加增益分布精度的系统和方法，包括减少温度和/或过程变化对放大器的增益曲线的影响的方法和系统。

公开(公告)号：US20080198269A1

公开(公告)日：2008-08-21

申请号：US11878751

申请日：2007-07-26

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H04N5/14

CPC classification number: H04B1/18 ,  H03J5/12 ,  H03K17/002 ,  H04N5/455 ,  H04N21/4263

Abstract: A tuner front-end circuit for processing a radio frequency (RF) signal includes a first filter block that terminates the RF signal for unwanted frequency bands; a second filter block that provides selectivity within the unterminated signal by separating the unterminated signal into a plurality of separate signals, each of a different desired frequency band; and an amplifier block that amplifies each of the separate signals. One or more of the amplified separate signals can be provided to a tuner. The circuit can also include a daisy chain output block that provides the amplified separate signals to one or more additional tuners. One or more tracking filter blocks can also be included to provide further selectivity to the amplified separate signals and to reject signals at specific harmonics to prevent degradation of a signal-to-noise ratio. A method of processing an RF signal is also presented.

Abstract translation: 用于处理射频（RF）信号的调谐器前端电路包括：第一滤波器块，其终止不想要的频带的RF信号; 第二滤波器块，其通过将未终止的信号分离成多个分离的信号，在不同的期望频带中的每一个来提供非终止信号内的选择性; 以及放大每个单独信号的放大器块。 可以将一个或多个放大的分离信号提供给调谐器。 电路还可以包括菊花链输出块，其将放大的单独信号提供给一个或多个附加的调谐器。 还可以包括一个或多个跟踪滤波器模块以提供对放大的分离信号的进一步选择性，并且以特定谐波抑制信号以防止信噪比的降低。 还提出了处理RF信号的方法。

公开(公告)号：US20070120605A1

公开(公告)日：2007-05-31

申请号：US11698162

申请日：2007-01-26

Applicant: Klaas Bult ,  Ramon Gomez

Inventor： Klaas Bult ,  Ramon Gomez

IPC: H03G3/00

CPC classification number: H03D3/18 ,  H01F17/0006 ,  H01F17/0013 ,  H01F27/34 ,  H01F27/40 ,  H01F27/42 ,  H01F2017/0053 ,  H01F2021/125 ,  H01L23/5227 ,  H01L27/0248 ,  H01L27/0251 ,  H01L27/08 ,  H01L2924/0002 ,  H01L2924/3011 ,  H03B5/04 ,  H03B5/364 ,  H03D7/161 ,  H03D7/18 ,  H03F1/26 ,  H03F1/3211 ,  H03F3/195 ,  H03F3/45183 ,  H03F3/45188 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/447 ,  H03F2200/63 ,  H03F2203/45264 ,  H03F2203/45286 ,  H03G1/0023 ,  H03G1/0029 ,  H03G3/3052 ,  H03H7/25 ,  H03H11/04 ,  H03H11/1291 ,  H03H11/53 ,  H03H11/54 ,  H03H19/004 ,  H03J1/0075 ,  H03J3/04 ,  H03J3/08 ,  H03J3/185 ,  H03J2200/10 ,  H03L7/10 ,  H03L7/183 ,  H03L7/23 ,  H03L2207/06 ,  H01L2924/00

Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator. The VCOs in the PLLs are centered using a control circuit to center the tuning capacitance range. A differential crystal oscillator is advantageously used as a frequency reference. Differential signal transmission is advantageously used throughout the receiver.

公开(公告)号：US20070105517A1

公开(公告)日：2007-05-10

申请号：US11588264

申请日：2006-10-27

Applicant: Sung-Hsien Chang ,  Ramon Gomez

Inventor： Sung-Hsien Chang ,  Ramon Gomez

IPC: H04B7/185 ,  H04B1/06

CPC classification number: H03G1/0088 ,  H03G3/001

Abstract: A programmable attenuator includes a resistor ladder having a plurality of taps to provide a coarse gain control. Coupled to each tap is a plurality of switches. Control logic activates or deactivates individual switches in the plurality of switches to provide a fine gain control. More specifically, a set of activated switches provides fine gain control by determining an overall attenuation level interpolated between an adjacent pair of taps.

Abstract translation: 可编程衰减器包括具有多个抽头以提供粗增益控制的电阻梯。 耦合到每个水龙头是多个开关。 控制逻辑激活或去激活多个开关中的各个开关以提供精细的增益控制。 更具体地，一组激活的开关通过确定在相邻的一对抽头之间内插的总衰减水平来提供精细的增益控制。

公开(公告)号：US20060284689A1

公开(公告)日：2006-12-21

申请号：US11459205

申请日：2006-07-21

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03L7/00

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 PILL 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.

Abstract translation: 增益补偿器补偿锁相环（PLL）中变容二极管调谐电压调谐振荡器（VCO）的增益变化。 VCO包括具有多个固定电容器的并联LC电路，其可以根据电容器控制信号切换或切换出LC电路，以执行VCO的频带选择调谐。 增益补偿器通过产生基于控制LC电路中的固定电容器的相同电容器控制信号的电荷泵参考电流来补偿可变VCO增益。 增益补偿器通过使用单位电流源复制参考刻度电流来产生电荷泵参考电流。 参考比例电流复制的次数是基于切换到LC电路的固定电容，因此是PLL的频带。 参考比例电流是基于特定一些PILL特性的PLL控制产生的，例如参考频率，环路带宽和环路阻尼。 因此，除了补偿可变VCO增益之外，参考泵电流可以有效地优化用于改变PLL工作条件。

公开(公告)号：US20060192614A1

公开(公告)日：2006-08-31

申请号：US11345946

申请日：2006-02-02

Applicant: Arya Behzad ,  Klaas Bult ,  Ramon Gomez ,  Chi-Hung Lin ,  Tom Kwan ,  Oscar Agazzi ,  John Creigh ,  Mehdi Hatamian ,  David Kruse ,  Arthur Abnous ,  Henry Samueli

Inventor： Arya Behzad ,  Klaas Bult ,  Ramon Gomez ,  Chi-Hung Lin ,  Tom Kwan ,  Oscar Agazzi ,  John Creigh ,  Mehdi Hatamian ,  David Kruse ,  Arthur Abnous ,  Henry Samueli

IPC: H03B1/00

CPC classification number: H03F1/32 ,  H03F3/347 ,  H03F3/505 ,  H03F2200/211 ,  H03F2200/252 ,  H03F2200/421 ,  H03F2200/513 ,  H03G1/0088 ,  H03G3/001 ,  H03G3/3036 ,  H03G3/3052 ,  H03G5/10 ,  H03H11/245

Abstract: Circuitry to remove switches from signal paths in integrated circuit programmable gain attenuators. Programmable gain attenuators and programmable gain amplifiers commonly switch between signal levels using semi-conductor switches. Such switches may introduce non-linearities in the signal. By isolating the switches from the signal path linearity of the PGA can be improved.

公开(公告)号：US20060164162A1

公开(公告)日：2006-07-27

申请号：US11321650

申请日：2005-12-30

Applicant: Leonard Dauphinee ,  Ramon Gomez

Inventor： Leonard Dauphinee ,  Ramon Gomez

IPC: H03G3/20

CPC classification number: H03G3/3036

Abstract: The present invention provides systems and methods for asymmetrically varying gain in a low noise amplifier. The amplifier includes a first stage amplifier, a plurality of second stage amplifiers coupled to the first stage amplifier, a comparator coupled to one of the second stage amplifiers, and a controller coupled to the comparator, the first stage amplifier, and the plurality of second stage amplifiers. The controller is configured to produce one or more gain control signals to change the gain of one of the first stage amplifier or the plurality of second stage amplifiers at a plurality of asymmetric rates so as to cause the power of the output signal to move toward one of the threshold values of the comparator. The rate of change of the gain is based on conditions including the gain of the first stage amplifier, gain of a second stage amplifier, and the sampled power level.

Abstract translation: 本发明提供了用于在低噪声放大器中不对称地改变增益的系统和方法。 放大器包括第一级放大器，耦合到第一级放大器的多个第二级放大器，耦合到第二级放大器之一的比较器以及耦合到比较器，第一级放大器和多个第二级放大器的控制器 舞台放大器。 控制器被配置为产生一个或多个增益控制信号，以多个非对称速率改变第一级放大器或多个第二级放大器之一的增益，以便使输出信号的功率向一个 的比较器的阈值。 增益的变化率基于包括第一级放大器的增益，第二级放大器的增益和采样功率电平的条件。

公开(公告)号：US20060097796A1

公开(公告)日：2006-05-11

申请号：US11313372

申请日：2005-12-21

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03L7/00

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.