公开(公告)号：US07804356B2

公开(公告)日：2010-09-28

申请号：US12172725

申请日：2008-07-14

Applicant: Ramon Gomez ,  Jianhong Xiao ,  Takayuki Hayashi

Inventor： Ramon Gomez ,  Jianhong Xiao ,  Takayuki Hayashi

IPC: H03G3/20

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：US20100066917A1

公开(公告)日：2010-03-18

申请号：US12553701

申请日：2009-09-03

Applicant: Francesco Gatta ,  Ramon Gomez ,  Leonard Dauphinee ,  Young Joon Shin ,  Hanli Zou ,  Massimo Brandolini ,  Giuseppe Cusmai

Inventor： Francesco Gatta ,  Ramon Gomez ,  Leonard Dauphinee ,  Young Joon Shin ,  Hanli Zou ,  Massimo Brandolini ,  Giuseppe Cusmai

IPC: H04N5/50 ,  H04B1/26

CPC classification number: H04N5/455 ,  H04N5/45 ,  H04N21/4263 ,  H04N21/4382

Abstract: Systems and methods for demodulating a plurality of contiguous channels contained within a bandlimited portion of a radio-frequency (RF) input signal are provided. In an embodiment, the bandlimited portion of the RF input signal is down-converted to baseband. After down-conversion, the bandlimited portion overlaps at baseband with a mirror image of the bandlimited portion. The plurality of contiguous channels within the down-converted signal similarly overlap at baseband and subsequently occupy a bandwidth substantially equal to half that required before down-converting. Image rejection is performed in the digital domain to recover each of the plurality of overlapping channels.

Abstract translation: 提供了用于解调包含在射频（RF）输入信号的频带限制部分内的多个连续信道的系统和方法。 在一个实施例中，RF输入信号的频带限制部分被下变频为基带。 在下转换之后，频带限制部分与带限制部分的镜像重叠在基带处。 下变频信号内的多个相邻信道类似地在基带处重叠，并且随后占据基本上等于下变频所需的一半的带宽。 在数字域中进行图像抑制以恢复多个重叠信道中的每一个。

公开(公告)号：US20100052967A1

公开(公告)日：2010-03-04

申请号：US12453431

申请日：2009-05-11

Applicant: Bruce J. Currivan ,  Thomas J. Kolze ,  Lin He ,  Loke Tan ,  Ramon Gomez ,  Francesco Gatta

Inventor： Bruce J. Currivan ,  Thomas J. Kolze ,  Lin He ,  Loke Tan ,  Ramon Gomez ,  Francesco Gatta

IPC: H03M1/12

CPC classification number: H03M1/188

Abstract: A method and apparatus is disclosed to extend a dynamic input range of an analog to digital converter (ADC). A composite ADC may include one or more ADCs. The one or more ADCs compare a signal metric of an analog input signal to quantization levels to produce intermediate digital output signals using one or more non-clipping input values. The composite ADC may select among the one or more intermediate digital output signals based on the signal metric of the analog input signal to produce a final digital output.

Abstract translation: 公开了一种扩展模数转换器（ADC）的动态输入范围的方法和装置。 复合ADC可以包括一个或多个ADC。 一个或多个ADC将模拟输入信号的信号量度与量化电平进行比较，以使用一个或多个非削波输入值产生中间数字输出信号。 复合ADC可以基于模拟输入信号的信号量度在一个或多个中间数字输出信号中选择以产生最终的数字输出。

公开(公告)号：US07660571B2

公开(公告)日：2010-02-09

申请号：US11588264

申请日：2006-10-27

Applicant: Sung-Hsien Chang ,  Ramon Gomez

Inventor： Sung-Hsien Chang ,  Ramon Gomez

IPC: H04B1/26

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：US20080036557A1

公开(公告)日：2008-02-14

申请号：US11892097

申请日：2007-08-20

Applicant: Sung-Hsien Chang ,  Ramon Gomez ,  Lawrence Burns ,  Carl Pobanz

Inventor： Sung-Hsien Chang ,  Ramon Gomez ,  Lawrence Burns ,  Carl Pobanz

IPC: H01P1/20

CPC classification number: H01P7/00 ,  H01P1/20 ,  H01P1/203 ,  H01P1/20381 ,  H05K1/165

Abstract: A bandpass filter includes a plurality of resonators. An input pin is connected to a first resonator of the plurality of resonators. An output pin is connected to a second resonator of the plurality of resonators. The first and second resonators are magnetically coupled to each other. The first and second resonators are coupled to other resonators using mixed coupling. The other resonators are coupled to each other using electric coupling.

Abstract translation: 带通滤波器包括多个谐振器。 输入引脚连接到多个谐振器的第一谐振器。 输出引脚连接到多个谐振器的第二谐振器。 第一和第二谐振器彼此磁耦合。 第一和第二谐振器使用混合耦合耦合到其它谐振器。 其他谐振器使用电耦合彼此耦合。

公开(公告)号：US20070247238A1

公开(公告)日：2007-10-25

申请号：US11767899

申请日：2007-06-25

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03L7/099

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一个PLL来控制的，该控制指定了某些PLL特性，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：US20070026831A1

公开(公告)日：2007-02-01

申请号：US11540662

申请日：2006-10-02

Applicant: Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

Inventor： Steven Jaffe ,  Donald McMullin ,  Ramon Gomez

IPC: H04B7/00

CPC classification number: H04B1/28 ,  H04B1/0014 ,  H04B1/0032 ,  H04B1/0039

Abstract: An apparatus provides a local oscillator signal based on a selected channel of an RF input signal. For example, the apparatus can set a frequency of the local oscillator signal based on the selected channel. Digital circuitry can be used to generate the local oscillator signal. For instance, the digital circuitry can provide a digital representation of the local oscillator signal. A DAC can convert the digital representation to an analog signal. Other circuitry can provide first and second quadrature components of the local oscillator signal, based on the analog signal.

Abstract translation: 一种装置基于RF输入信号的所选择的信道提供本地振荡器信号。 例如，该装置可以基于所选择的信道来设置本地振荡器信号的频率。 数字电路可用于产生本地振荡器信号。 例如，数字电路可以提供本地振荡器信号的数字表示。 DAC可以将数字表示转换为模拟信号。 其他电路可以基于模拟信号提供本地振荡器信号的第一和第二正交分量。

公开(公告)号：US20070018747A1

公开(公告)日：2007-01-25

申请号：US11534870

申请日：2006-09-25

Applicant: Ramon Gomez

Inventor： Ramon Gomez

IPC: H03L5/00

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.

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一个PLL来控制的，该控制指定了某些PLL特性，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：US20060202755A1

公开(公告)日：2006-09-14

申请号：US11420406

申请日：2006-05-25

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: H03F3/68

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.

Abstract translation: 电路从集成电路可编程增益衰减器中的信号路径中去除开关可编程增益衰减器和可编程增益放大器通常使用半导体开关在信号电平之间切换。 这种开关可能在信号中引入非线性。通过将开关与信号路径隔离，可以提高PGA的线性度。

公开(公告)号：US20060097797A1

公开(公告)日：2006-05-11

申请号：US11314618

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.