公开(公告)号：US08576103B2

公开(公告)日：2013-11-05

申请号：US13349000

申请日：2012-01-12

Applicant: Bruce J. Currivan ,  Thomas J. Kolze ,  Ramon A. Gomez

Inventor： Bruce J. Currivan ,  Thomas J. Kolze ,  Ramon A. Gomez

IPC: H03M1/66

CPC classification number: H04B1/10 ,  H03M1/0614 ,  H03M1/68

Abstract: Rollover operative digital to analog converter (DAC). With respect to a codeword that is provided to a DAC, a processing module (e.g., a rollover processor) operates to compare the codeword to threshold(s) in accordance with adaptively partitioning the codeword into one or more sub-codewords when the codeword has a magnitude greater than at least one of the thresholds. In instances that the codeword is less than a threshold, the codeword may be provided directly to a DAC for use in generating a first analog signal. However, if the codeword is a larger than a threshold, then that portion of the codeword which is greater than the threshold may be provided to an alternative component such as one or more auxiliary or additional DACs, one or more other circuitry components, etc. in accordance with generating at least one additional analog signal to be combined with the first analog signal.

Abstract translation: 翻转式操作数模转换器（DAC）。 对于提供给DAC的码字，处理模块（例如，翻转处理器）操作以根据自适应地将码字划分成一个或多个子码字来将码字与阈值进行比较，当码字具有 大于阈值中的至少一个的幅度。 在码字小于阈值的情况下，码字可以被直接提供给DAC以用于生成第一模拟信号。 然而，如果码字大于阈值，则大于阈值的码字的该部分可以被提供给替代组件，例如一个或多个辅助或附加DAC，一个或多个其他电路组件等。 根据产生要与第一模拟信号组合的至少一个附加模拟信号。

公开(公告)号：US07768434B2

公开(公告)日：2010-08-03

申请号：US10826281

申请日：2004-04-19

Applicant: Ramon A. Gomez ,  Donald McMullin

Inventor： Ramon A. Gomez ,  Donald McMullin

IPC: H03M1/66

CPC classification number: H04L63/04 ,  H03D7/161 ,  H04L63/062 ,  H04L63/08 ,  H04L63/123 ,  H04N7/10

Abstract: Systems and methods for digital upconversion of baseband television signals that can be used in cable television headend systems are provided. In one embodiment, the system includes a digital frequency adjustment system and a digital to analog conversion system. In a feature of the embodiment, the digital frequency adjustment system consists of set of digital upconversion and upsample elements that shift upwards the frequency of baseband signals. In a further feature of the embodiment, a tree structure of sets of upsample and upconversion elements is used. In another embodiment, the system includes digital and analog frequency adjustment systems in which the frequencies of the input signals are partially upshifted within both the digital and analog domains. Methods for digital upconversion of television signals are also provided.

Abstract translation: 提供了可用于有线电视头端系统的基带电视信号的数字上变频的系统和方法。 在一个实施例中，该系统包括数字频率调整系统和数模转换系统。 在该实施例的特征中，数字频率调整系统包括一组数字上变频和向上移动基带信号频率的上采样元件。 在该实施例的另一特征中，使用上采样和上转换元件组的树结构。 在另一个实施例中，该系统包括数字和模拟频率调整系统，其中输入信号的频率在数字和模拟域内部分升高。 还提供了电视信号数字上变频的方法。

公开(公告)号：US20090165070A1

公开(公告)日：2009-06-25

申请号：US11959662

申请日：2007-12-19

Applicant: Donald G. McMullin ,  Ramon A. Gomez

Inventor： Donald G. McMullin ,  Ramon A. Gomez

IPC: H04N7/173 ,  H04B1/18 ,  H04B1/10

CPC classification number: H04H40/27 ,  H04B1/10 ,  H04B15/00 ,  H04B2215/068 ,  H04H20/78 ,  H04N7/104

Abstract: Systems and methods for perform a method for reducing interference from Multimedia over Coax Alliance (MOCA) signals in a cable television double conversion tuner are provided. The method may include receiving an indication of the channel in which MoCA signals are operating. When the channel in which the MoCA signals are operating is in the same frequency band as an intermediate frequency of the tuner, the method may require shifting an intermediate frequency of the tuner out of the frequency band occupied by the channel in which the MoCA signals are operating.

Abstract translation: 提供了一种用于在有线电视双转换调谐器中执行减少Multimedia over Coax Alliance（MOCA）信号干扰的方法的系统和方法。 该方法可以包括接收MoCA信号正在操作的信道的指示。 当MoCA信号操作的信道处于与调谐器的中频相同的频带中时，该方法可能需要将调谐器的中频从MoCA信号为 操作。

公开(公告)号：US20080174361A1

公开(公告)日：2008-07-24

申请号：US12054755

申请日：2008-03-25

Applicant: Ramon A. Gomez

Inventor： Ramon A. Gomez

IPC: G05F1/10

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：US07375540B2

公开(公告)日：2008-05-20

申请号：US10963639

申请日：2004-10-14

Applicant: Lawrence M. Burns ,  Leonard Dauphinee ,  Ramon A. Gomez ,  James Y. C. Chang

Inventor： Lawrence M. Burns ,  Leonard Dauphinee ,  Ramon A. Gomez ,  James Y. C. Chang

IPC: G01R31/02 ,  G01R31/00

CPC classification number: H01L22/20 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H03F3/211 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102

Abstract: A method and system for monitoring and compensating the performance of an operational circuit is provided. The system includes one or more integrated circuit chips and a controller. Each integrated circuit chip includes one or more operational circuits, each operational circuit having at least one controllable circuit parameter. Each integrated circuit chip also includes a process monitor module at least partially constructed thereon. The controller is coupled to each process monitor module and to each operational circuit. The controller includes logic for evaluating the performance of an operational circuit based on data obtained from process monitor module and operational circuit related data stored in a memory. Based on the evaluation, the controller determines whether any deviations from desired or optimal performance of the circuit exist. If deviations exist, the controller generates a control signal to initiate adjustments to the operational circuit to compensate for the deviations.

Abstract translation: 提供了一种用于监测和补偿操作电路的性能的方法和系统。 该系统包括一个或多个集成电路芯片和控制器。 每个集成电路芯片包括一个或多个操作电路，每个操作电路具有至少一个可控电路参数。 每个集成电路芯片还包括至少部分地构建在其上的过程监控模块。 控制器耦合到每个过程监控模块和每个操作电路。 控制器包括用于基于从存储在存储器中的过程监视模块和操作电路相关数据获得的数据来评估操作电路的性能的逻辑。 基于评估，控制器确定是否存在与电路的期望或最佳性能的任何偏差。 如果存在偏差，则控制器产生控制信号以启动对运算电路的调整以补偿偏差。

公开(公告)号：US07224234B2

公开(公告)日：2007-05-29

申请号：US11314618

申请日：2005-12-21

Applicant: Ramon A. Gomez

Inventor： Ramon A. 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.

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：US07148750B2

公开(公告)日：2006-12-12

申请号：US11417073

申请日：2006-05-02

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

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

IPC: H03G3/10

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：US07119624B2

公开(公告)日：2006-10-10

申请号：US11096154

申请日：2005-03-30

Applicant: Ramon A. Gomez

Inventor： Ramon A. 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.

公开(公告)号：US07053715B2

公开(公告)日：2006-05-30

申请号：US11005603

申请日：2004-12-06

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

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

IPC: H03G3/10

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：US06927640B2

公开(公告)日：2005-08-09

申请号：US10948546

申请日：2004-09-24

Applicant: Ramon A. Gomez

Inventor： Ramon A. Gomez

IPC: H03B5/12 ,  H03B5/32 ,  H03B5/00 ,  H03B5/08

CPC classification number: H03B5/364

Abstract: A resonant oscillator circuit includes an active device and a resonator that causes the active device to oscillate at a resonant frequency of the resonator. The active device includes one or more transistors that are DC biased using one or more resistors. The bias resistors generate thermal noise that is proportional to the resistance value. An external inductor circuit is connected across the output terminals of the active device and in parallel with the resonator. The external inductor circuit shorts-out at least some of the thermal noise that is generated by the bias resistors, and thereby reduces the overall phase noise of the resonant oscillator.

Abstract translation: 谐振振荡器电路包括有源器件和谐振器，其使得有源器件以谐振器的谐振频率振荡。 有源器件包括使用一个或多个电阻器直流偏置的一个或多个晶体管。 偏置电阻产生与电阻值成比例的热噪声。 外部电感电路连接在有源器件的输出端上并与谐振器并联。 外部电感器电路将由偏置电阻产生的至少一些热噪声短路，从而降低谐振振荡器的整体相位噪声。