公开(公告)号：US20050024541A1

公开(公告)日：2005-02-03

申请号：US10630656

申请日：2003-07-31

Applicant: Ramon Gomez ,  Myles Wakayama

Inventor： Ramon Gomez ,  Myles Wakayama

IPC: H03D3/00 ,  H04N5/16

CPC classification number: H03D3/008

Abstract: A DC compensation circuit restores the frequency spectrum of an input signal at DC (or 0 Hz) by removing or reducing DC offset, 1/f noise, or any other unwanted noise at or near 0 Hz. The DC compensation is performed using direct coupling, as opposed to AC coupling, so that no useful signal information in the active period of the input signal is lost at DC. The DC compensation circuit samples the input signal during an inactive period of the input signal. Afterwhich, the unwanted DC noise is determined from the sampled signal and stored until an active period of the input signal. For example, the sampled signal can be filtered using a passband around DC so as to isolate the signal energy at DC during the inactive period. Since there is no useful signal information present during the inactive period, any signal energy at the output of the filter is necessarily unwanted DC noise. In a feed-forward approach, the unwanted DC noise is then subtracted from the input signal during the active period of the input signal to compensate or cancel the unwanted DC noise. Alternatively, the unwanted DC noise could be sampled and determined during the inactive period and then fed back (after filtering) in order to be subtracted during the active period of the input signal.

Abstract translation: DC补偿电路通过去除或减少直流偏移，1 / f噪声或在0Hz附近或其附近的任何其他不需要的噪声来恢复DC（或0 Hz）输入信号的频谱。 直流补偿使用直接耦合进行，而不是交流耦合，因此在直流输入信号的有效周期内没有有用的信号信息丢失。 直流补偿电路在输入信号的无效期间对输入信号进行采样。 之后，根据采样信号确定不需要的DC噪声，直到输入信号的有效周期为止。 例如，可以使用围绕DC的通带来对采样信号进行滤波，以便在非活动时段期间隔离DC处的信号能量。 由于在非活动时段期间没有有用的信号信息，所以滤波器输出处的任何信号能量必然是不需要的DC噪声。 在前馈方法中，在输入信号的有效周期内，从输入信号中减去不需要的直流噪声，以补偿或消除不需要的直流噪声。 或者，可以在不活动时段期间对不想要的DC噪声进行采样和确定，然后反馈（在滤波之后），以便在输入信号的有效周期期间被减去。

公开(公告)号：US08655506B2

公开(公告)日：2014-02-18

申请号：US12526099

申请日：2008-02-22

Applicant: Ramon Gomez ,  Francisco A. Navarro ,  Bastian Figlar

Inventor： Ramon Gomez ,  Francisco A. Navarro ,  Bastian Figlar

IPC: G01C21/00

CPC classification number: G01C21/00 ,  G08G5/0021 ,  G08G5/0082 ,  G08G5/025 ,  Y02T50/84

Abstract: The present disclosure relates to methods of calculating and flying continuous descent approaches to an airport or the like, and to aircraft navigation systems for implementing these methods. The present disclosure resides in the recognition that greater predictability in arrival times may be achieved by flying continuous descent approaches by maintaining a constant aerodynamic flight path angle.

Abstract translation: 本公开涉及计算和飞行连续下降方法到机场等的方法以及用于实施这些方法的飞行器导航系统。 本公开内容在于认识到，通过维持恒定的空气动力学飞行路径角度可以通过飞行连续下降方法来实现到达时间的更大可预测性。

公开(公告)号：US08299870B2

公开(公告)日：2012-10-30

申请号：US12689549

申请日：2010-01-19

Applicant: Tao Wu ,  Ramon Gomez

Inventor： Tao Wu ,  Ramon Gomez

IPC: H01P1/22 ,  H03G3/20

CPC classification number: H03H7/25 ,  H03G1/0088 ,  H03G3/001

Abstract: A programmable gain attenuator (PGA) configured to receive a signal at an input and provide an attenuated version of the signal at an output is provided herein. The PGA includes a resistor coupled between a first tap and a second tap, where the first tap is coupled to the input of the PGA. The PGA further includes two sets of switches. The first set of switches is coupled in parallel between the first tap and the output, and the second set of switches is coupled in parallel between the second tap and the output. The attenuation setting of the programmable gain attenuator can be determined by controlling each set of switches.

Abstract translation: 一种可编程增益衰减器（PGA），被配置为在输入处接收信号并在输出端提供信号的衰减版本。 PGA包括耦合在第一抽头和第二抽头之间的电阻器，其中第一抽头耦合到PGA的输入端。 PGA还包括两套开关。 第一组开关并联在第一抽头和输出之间，第二组开关并联在第二抽头和输出端之间。 可编程增益衰减器的衰减设置可以通过控制每组开关来确定。

公开(公告)号：US08198939B2

公开(公告)日：2012-06-12

申请号：US13211024

申请日：2011-08-16

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：US20110227768A1

公开(公告)日：2011-09-22

申请号：US13118429

申请日：2011-05-29

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

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

IPC: H03M1/06

CPC classification number: H03M1/1033 ,  H03M1/188

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08009075B2

公开(公告)日：2011-08-30

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。

公开(公告)号：US07956691B2

公开(公告)日：2011-06-07

申请号：US12481320

申请日：2009-06-09

Applicant: Ramon Gomez ,  Flavio Avanzo ,  Giuseppe Cusmai ,  Takayuki Hayashi

Inventor： Ramon Gomez ,  Flavio Avanzo ,  Giuseppe Cusmai ,  Takayuki Hayashi

IPC: H03F3/68

CPC classification number: H03F1/52 ,  H03F3/211 ,  H03G3/3042

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07952502B2

公开(公告)日：2011-05-31

申请号：US12949752

申请日：2010-11-18

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

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

IPC: H03M1/06

CPC classification number: H03M1/1033 ,  H03M1/188

Abstract: 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.

公开(公告)号：US20100264984A1

公开(公告)日：2010-10-21

申请号：US12481320

申请日：2009-06-09

Applicant: Ramon Gomez ,  Flavio Avanzo ,  Giuseppe Cusmai ,  Takayuki Hayashi

Inventor： Ramon Gomez ,  Flavio Avanzo ,  Giuseppe Cusmai ,  Takayuki Hayashi

IPC: H03F1/00 ,  H03F1/52

CPC classification number: H03F1/52 ,  H03F3/211 ,  H03G3/3042

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07535976B2

公开(公告)日：2009-05-19

申请号：US10902477

申请日：2004-07-30

Applicant: Steven Jaffee ,  Donald McMullin ,  Ramon Gomez

Inventor： Steven Jaffee ,  Donald McMullin ,  Ramon Gomez

IPC: H03D3/18

CPC classification number: H04L27/38 ,  H03D3/009 ,  H03J1/005 ,  H04L2027/0016

Abstract: A receiver to process a RF input signal having a plurality of channels includes a direct down conversion circuit, a demodulation circuit, and a local oscillator circuit. The direct down conversion circuit provides a downconverted signal based on the RF input signal and a local oscillator signal. The demodulation circuit receives the downconverted signal and provides a demodulated signal. The local oscillator circuit sets a frequency of the local oscillator signal based on a selected channel of the plurality of channels.

Abstract translation: 用于处理具有多个通道的RF输入信号的接收器包括直接下变频电路，解调电路和本地振荡器电路。 直接下变频电路基于RF输入信号和本地振荡器信号提供下变频信号。 解调电路接收下变频信号并提供解调信号。 本地振荡器电路基于多个信道的所选信道来设置本地振荡器信号的频率。