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31. 发明授权

US08198939B2 Amplifier with automatic gain profile control and calibration 有权
标题翻译：具有自动增益曲线控制和校准功能的放大器
公开(公告)号：US08198939B2
公开(公告)日：2012-06-12
申请号：US13211024
申请日：2011-08-16
申请人： Ramon Gomez , Jianhong Xiao , Takayuki Hayashi
发明人： Ramon Gomez , Jianhong Xiao , Takayuki Hayashi
IPC分类号： H03G3/20
CPC分类号： H03G3/001 , H03G5/28
摘要： 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.
摘要翻译：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。

32. 发明申请

US20110227768A1 Imbalance and distortion cancellation for composite analog to digital converter (ADC) 有权
标题翻译：复合模数转换器（ADC）的不平衡和失真消除
公开(公告)号：US20110227768A1
公开(公告)日：2011-09-22
申请号：US13118429
申请日：2011-05-29
申请人： Thomas J. Kolze , Bruce J. Currivan , Ramon Gomez , Loke Tan , Lin He
发明人： Thomas J. Kolze , Bruce J. Currivan , Ramon Gomez , Loke Tan , Lin He
IPC分类号： H03M1/06
CPC分类号： H03M1/1033 , H03M1/188
摘要： Imbalance and distortion cancellation for composite analog to digital converter (ADC). Such an ‘ADC’ is implemented using two or more ADCs may be employed for sampling (e.g., quantizing, digitizing, etc.) of an analog (e.g., continuous time) signal in accordance with generating a digital (e.g., discrete time) signal. Using at least two ADCs allows for the accommodation and sampling of various signals having a much broader dynamic range without suffering degradation in signal to noise ratio (SNR). Generally, the signal provided via at least one of the paths corresponding to at least one of the respective ADCs is scaled (e.g., attenuated), so that the various ADCs effectively sample signals of different magnitudes. The ADCs may respectively correspond to different magnitude and/or power levels (e.g., high power, lower power, any intermediary power level, etc.). Various implementations of compensation may be performed along the various paths corresponding to the respective ADCs.
摘要翻译：复合模数转换器（ADC）的不平衡和失真消除。根据生成数字（例如，离散时间）信号，可以使用两个或多个ADC来实现这样的“ADC”，用于对模拟（例如，连续时间）信号进行采样（例如，量化，数字化等）。使用至少两个ADC允许对具有更宽动态范围的各种信号进行调节和采样，而不会降低信噪比（SNR）。通常，通过对应于相应ADC中的至少一个的至少一个路径提供的信号被缩放（例如，衰减），使得各种ADC有效地采样不同幅度的信号。 ADC可以分别对应于不同的幅度和/或功率电平（例如，高功率，较低功率，任何中间功率电平等）。可以沿着对应于各个ADC的各种路径执行补偿的各种实现。

33. 发明授权

US08009075B2 Analog to digital converter (ADC) with extended dynamic input range 有权
标题翻译：具有扩展动态输入范围的模数转换器（ADC）
公开(公告)号：US08009075B2
公开(公告)日：2011-08-30
申请号：US12453431
申请日：2009-05-11
申请人： Bruce J. Currivan , Thomas J. Kolze , Lin He , Loke Tan , Ramon Gomez , Francesco Gatta
发明人： Bruce J. Currivan , Thomas J. Kolze , Lin He , Loke Tan , Ramon Gomez , Francesco Gatta
IPC分类号： H03M1/12
CPC分类号： H03M1/188
摘要： 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.
摘要翻译：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限幅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。

34. 发明授权

US07956691B2 System and method for over-voltage protection of a power amplifier 有权
标题翻译：功率放大器过电压保护的系统和方法
公开(公告)号：US07956691B2
公开(公告)日：2011-06-07
申请号：US12481320
申请日：2009-06-09
申请人： Ramon Gomez , Flavio Avanzo , Giuseppe Cusmai , Takayuki Hayashi
发明人： Ramon Gomez , Flavio Avanzo , Giuseppe Cusmai , Takayuki Hayashi
IPC分类号： H03F3/68
CPC分类号： H03F1/52 , H03F3/211 , H03G3/3042
摘要： A system and method for over-voltage protection of a power amplifier is provided. A power amplifier is typically employed in a transmitter to amplify signals prior to transmission via a load; the load may include an antenna or a cable. As a result of an impedance mismatch between the power amplifier and its load, excess power from the power amplifier output fails to reach the load and must be dissipated by one or more transistors in the power amplifier. In severe impedance mismatch conditions, this dissipated power may damage or destroy the transistor(s). An automatic gain control (AGC) is provided for detecting a gain difference between the power amplifier and a replica power amplifier. A gain difference may signal an over-voltage situation. The AGC may be configured to adjust the gain of the power amplifier if a gain difference exists to prevent device damage.
摘要翻译：提供了功率放大器的过电压保护的系统和方法。功率放大器通常用于发射机，以在通过负载传输之前放大信号; 负载可以包括天线或电缆。由于功率放大器与其负载之间的阻抗不匹配，来自功率放大器输出的过剩功率不能达到负载，并且必须由功率放大器中的一个或多个晶体管耗散。在严重的阻抗失配条件下，这种耗散功率可能会损坏或破坏晶体管。提供了一种自动增益控制（AGC），用于检测功率放大器和复制功率放大器之间的增益差。增益差可能表示过电压情况。 AGC可以被配置为如果存在增益差以调节功率放大器的增益以防止设备损坏。

35. 发明授权

US07952502B2 Imbalance and distortion cancellation for composite analog to digital converter (ADC) 有权
公开(公告)号：US07952502B2
公开(公告)日：2011-05-31
申请号：US12949752
申请日：2010-11-18
申请人： Thomas J. Kolze , Bruce J. Currivan , Ramon Gomez , Loke Tan , Lin He
发明人： Thomas J. Kolze , Bruce J. Currivan , Ramon Gomez , Loke Tan , Lin He
IPC分类号： H03M1/06
CPC分类号： H03M1/1033 , H03M1/188
摘要： Imbalance and distortion cancellation for composite analog to digital converter (ADC). Such an ‘ADC’ is implemented using two or more ADCs may be employed for sampling (e.g., quantizing, digitizing, etc.) of an analog (e.g., continuous time) signal in accordance with generating a digital (e.g., discrete time) signal. Using at least two ADCs allows for the accommodation and sampling of various signals having a much broader dynamic range without suffering degradation in signal to noise ratio (SNR). Generally, the signal provided via at least one of the paths corresponding to at least one of the respective ADCs is scaled (e.g., attenuated), so that the various ADCs effectively sample signals of different magnitudes. The ADCs may respectively correspond to different magnitude and/or power levels (e.g., high power, lower power, any intermediary power level, etc.). Various implementations of compensation may be performed along the various paths corresponding to the respective ADCs.

36. 发明申请

US20100264984A1 System and Method for Over-Voltage Protection of a Power Amplifier 有权
标题翻译：功率放大器过电压保护的系统和方法
公开(公告)号：US20100264984A1
公开(公告)日：2010-10-21
申请号：US12481320
申请日：2009-06-09
申请人： Ramon Gomez , Flavio Avanzo , Giuseppe Cusmai , Takayuki Hayashi
发明人： Ramon Gomez , Flavio Avanzo , Giuseppe Cusmai , Takayuki Hayashi
IPC分类号： H03F1/00 , H03F1/52
CPC分类号： H03F1/52 , H03F3/211 , H03G3/3042
摘要： A system and method for over-voltage protection of a power amplifier is provided. A power amplifier is typically employed in a transmitter to amplify signals prior to transmission via a load; the load may include an antenna or a cable. As a result of an impedance mismatch between the power amplifier and its load, excess power from the power amplifier output fails to reach the load and must be dissipated by one or more transistors in the power amplifier. In severe impedance mismatch conditions, this dissipated power may damage or destroy the transistor(s). An automatic gain control (AGC) is provided for detecting a gain difference between the power amplifier and a replica power amplifier. A gain difference may signal an over-voltage situation. The AGC may be configured to adjust the gain of the power amplifier if a gain difference exists to prevent device damage.
摘要翻译：提供了功率放大器的过电压保护的系统和方法。功率放大器通常用于发射机，以在通过负载传输之前放大信号; 负载可以包括天线或电缆。由于功率放大器与其负载之间的阻抗不匹配，来自功率放大器输出的过剩功率不能达到负载，并且必须由功率放大器中的一个或多个晶体管耗散。在严重的阻抗失配条件下，这种耗散功率可能会损坏或破坏晶体管。提供了一种自动增益控制（AGC），用于检测功率放大器和复制功率放大器之间的增益差。增益差可能表示过电压情况。 AGC可以被配置为如果存在增益差以调节功率放大器的增益以防止设备损坏。

37. 发明申请

US20070268076A1 APPARATUS AND METHOD FOR PHASE LOCK GAIN CONTROL USING UNIT CURRENT SOURCES 有权
标题翻译：使用单元电流源进行相位锁定增益控制的装置和方法
公开(公告)号：US20070268076A1
公开(公告)日：2007-11-22
申请号：US11754804
申请日：2007-05-29
申请人： Ramon Gomez
发明人： Ramon Gomez
IPC分类号： H03L7/08
CPC分类号： 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
摘要： 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.
摘要翻译：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。

38. 发明申请

US20100308918A1 Amplifier with Automatic Gain Profile Control and Calibration 有权
标题翻译：具有自动增益曲线控制和校准的放大器
公开(公告)号：US20100308918A1
公开(公告)日：2010-12-09
申请号：US12856290
申请日：2010-08-13
申请人： Ramon Gomez , Jianhong Xiao , Takayuki Hayashi
发明人： Ramon Gomez , Jianhong Xiao , Takayuki Hayashi
IPC分类号： H03G3/30
CPC分类号： H03G3/001 , H03G5/28
摘要： 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.
摘要翻译：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。

39. 发明申请

US20080198269A1 Front-end integrated circuit for television receivers 有权
标题翻译：电视接收机的前端集成电路
公开(公告)号：US20080198269A1
公开(公告)日：2008-08-21
申请号：US11878751
申请日：2007-07-26
申请人： Ramon Gomez
发明人： Ramon Gomez
IPC分类号： H04N5/14
CPC分类号： H04B1/18 , H03J5/12 , H03K17/002 , H04N5/455 , H04N21/4263
摘要： 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.
摘要翻译：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。

40. 发明申请

US20070120605A1 Integrated switchless programmable attenuator and low noise amplifier 有权
公开(公告)号：US20070120605A1
公开(公告)日：2007-05-31
申请号：US11698162
申请日：2007-01-26
申请人： Klaas Bult , Ramon Gomez
发明人： Klaas Bult , Ramon Gomez
IPC分类号： H03G3/00
CPC分类号： 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
摘要： 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.

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