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1. 发明申请

US20130077544A1 Multi-Standard Front End Using Wideband Data Converters 有权
标题翻译：多标准前端使用宽带数据转换器
公开(公告)号：US20130077544A1
公开(公告)日：2013-03-28
申请号：US13243117
申请日：2011-09-23
申请人： Ray (Ramon) GOMEZ , Len Dauphinee
发明人： Ray (Ramon) GOMEZ , Len Dauphinee
IPC分类号： H04W4/00 , H04L5/00
CPC分类号： H04L27/0002 , H04J1/085 , H04L5/08 , H04Q11/0428 , H04Q2213/13034 , H04Q2213/13039 , H04Q2213/13098 , H04Q2213/13196 , H04Q2213/13333
摘要： Embodiments provide an area, cost, and power efficient multi-service transceiver architecture. The multi-service transceiver architecture simplifies receiver/transmitter front ends needed for a multi-service architecture, by replacing significant portions of multiple receiver and/or transmitter front ends with a single ADC and/or DAC, respectively. In embodiments, a plurality of received service contents are combined into one composite analog/RF signal and applied to an ADC. The ADC converts the composite signal into a composite multi-service digital signal. Digital techniques are then used to separate the plurality of service contents into a plurality of respective digital streams that each can be independently demodulated. Similarly, in the transmit direction, a plurality of digital streams, including a plurality of service contents, are combined into one composite digital signal. The composite digital signal is applied to a DAC to generate a composite multi-service analog/RF signal for subsequent transmission over a coaxial cable or wirelessly via an antenna.
摘要翻译：实施例提供了面积，成本和功率效率的多业务收发器架构。通过分别用单个ADC和/或DAC替代多个接收器和/或发射器前端的重要部分，多业务收发器架构简化了多业务架构所需的接收机/发射机前端。在实施例中，将多个接收到的服务内容组合成一个复合模拟/ RF信号并将其应用于ADC。 ADC将复合信号转换为复合多业务数字信号。然后使用数字技术将多个服务内容分成多个相应的数字流，每个可以独立地解调。类似地，在发送方向上，包括多个服务内容的多个数字流被组合成一个复合数字信号。复合数字信号被施加到DAC以产生复合多业务模拟/ RF信号，用于通过同轴电缆进行随后的传输或通过天线无线地进行传输。

2. 发明申请

US20130085703A1 Histogram-Based Linearization of Analog-to-Digital Converters 审中-公开
标题翻译：模数转换器的基于直方图的线性化
公开(公告)号：US20130085703A1
公开(公告)日：2013-04-04
申请号：US13249845
申请日：2011-09-30
申请人： Ray (Ramon) GOMEZ , Bruce J. Currivan , Lin He , Loke Tan , Frank Van der Goes , Cy (Chun-Ying) Chen , Jiangfeng Wu , Thomas Kolze
发明人： Ray (Ramon) GOMEZ , Bruce J. Currivan , Lin He , Loke Tan , Frank Van der Goes , Cy (Chun-Ying) Chen , Jiangfeng Wu , Thomas Kolze
IPC分类号： G06F17/17 , G06F19/00
CPC分类号： G06F17/17 , H03M1/1042 , H03M1/12
摘要： Embodiments provide histogram-based methods and system to estimate the transfer function of an ADC, and subsequently to linearize a non-linear ADC transfer function. Embodiments include blind algorithms that require no a priori knowledge of the input signal distribution. Embodiments can be implemented using cumulative (i.e., cumulative distribution function (CDF)) or non-cumulative (i.e., probability density function (PDF)) histograms. According to embodiments, a non-linear transfer function can be estimated by linearly approximating successive local intervals of the transfer function. Linearly approximated successive local intervals of the transfer function can then be used to fully characterize and closely estimate the transfer function.
摘要翻译：实施例提供基于直方图的方法和系统来估计ADC的传递函数，并且随后对非线性ADC传递函数进行线性化。实施例包括不需要输入信号分布的先验知识的盲算法。实施例可以使用累积（即，累积分布函数（CDF））或非累积（即，概率密度函数（PDF））直方图来实现。根据实施例，可以通过线性近似传递函数的连续局部间隔来估计非线性传递函数。传递函数的线性逼近的连续局部间隔可用于完全表征和密切估计传递函数。

3. 发明申请

US20130002225A1 Current-Mode Active Termination 有权
标题翻译：电流模式有效终止
公开(公告)号：US20130002225A1
公开(公告)日：2013-01-03
申请号：US13174059
申请日：2011-06-30
申请人： Ray (Ramon) GOMEZ
发明人： Ray (Ramon) GOMEZ
IPC分类号： G05F3/02
CPC分类号： H03F1/22 , H03F1/56 , H03F3/189 , H03F3/245 , H03F2200/387 , H03K19/017545 , H03M1/00 , H03M1/66
摘要： Embodiments of the present invention, as further described below, provide active termination circuits that can be used with power transmitter circuits. Embodiments reduce power loss due to impedance matching and increase power efficiency in power transmitter circuits. In particular, embodiments provide active termination circuits that can be configured to draw minimal amounts of the output current generated by the power transmitter circuits. At the same time, embodiments achieve optimal impedance matching, thus enabling optimal power transfer to the load. Further, embodiments can be controlled adaptively in real time to reduce parasitic effects on power transfer and to optimize impedance matching. Embodiments can be implemented using various transistor technologies (e.g., MOSFET, BJT, etc.), and can be used with a variety of power transmitter circuits, including, for example, power DACs, analog/digital RF transmitters, and analog/digital PAs.
摘要翻译：如下面进一步描述的，本发明的实施例提供了可以与功率发射器电路一起使用的有源终端电路。实施例减少了由于阻抗匹配引起的功率损耗并提高了功率发射器电路的功率效率。具体地，实施例提供有源终端电路，其可被配置为绘制由功率发射器电路产生的最小量的输出电流。同时，实施例实现了最佳的阻抗匹配，从而实现了对负载的最佳功率传递。此外，可以实时自适应地控制实施例，以减少对功率传递的寄生效应并优化阻抗匹配。可以使用各种晶体管技术（例如，MOSFET，BJT等）实现实施例，并且可以与各种功率发射器电路一起使用，包括例如功率DAC，模拟/数字RF发射器和模拟/数字PA 。

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