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1. 发明授权

US09401727B1 Shared circuit configurations for bootstrapped sample and hold circuits in a time-interleaved analog to digital converter 有权
标题翻译：在时间交织的模数转换器中自举采样和保持电路的共享电路配置
公开(公告)号：US09401727B1
公开(公告)日：2016-07-26
申请号：US14838012
申请日：2015-08-27
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Daniele Mastantuono , Mattias Palm , Roland Strandberg
IPC分类号： H03M1/12 , G11C27/02 , H03K17/06 , H03M1/00 , H03M1/08
CPC分类号： H03M1/1245 , G11C27/024 , H03K17/063 , H03M1/002 , H03M1/0845 , H03M1/1215
摘要： In a time-interleaved Analog to Digital Converter, circuit components and capacitances may be shared among a plurality of sample and hold circuits in each of two sets. The two shared circuits alternate, on different half-periods of a master clock signal, between charging a capacitance and sampling an input in an overlapping manner such that one is charging while the other is sampling. One sample and hold circuit is activated during each successive half-period (following a charging half-period) by independent, sequential, non-overlapping clocking signals. To improve SNDR, at least one switch is bootstrapped by driving its gate terminal with the voltage of a capacitor configured between the gate and the input signal. By sharing at least some components among multiple sample and hold circuits, the number of gates driven by clock signals is reduced, reducing clock distribution and calibration complexity, and the circuit area is reduced.
摘要翻译：在时间交织的模数转换器中，电路组件和电容可以在两组中的每一组中的多个采样和保持电路之间共享。两个共享电路在主时钟信号的不同半周期间交替地在对电容进行充电和以重叠的方式对输入进行采样之间进行交替，使得一个充电而另一个正在进行采样。一个采样和保持电路通过独立的，顺序的，不重叠的时钟信号在每个连续的半周期（在充电半周期之后）被激活。为了改善SNDR，通过在栅极和输入信号之间配置的电容器的电压驱动其栅极端子，至少一个开关被自举。通过在多个采样和保持电路中共享至少一些组件，减少了由时钟信号驱动的门数，减少了时钟分布和校准复杂度，并且减少了电路面积。

2. 发明申请

US20140378078A1 Conversion Circuit For Converting Complex Analog Signal Into Digital Representation 审中-公开
标题翻译：将复杂模拟信号转换为数字表示的转换电路
公开(公告)号：US20140378078A1
公开(公告)日：2014-12-25
申请号：US14477590
申请日：2014-09-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Lars Sundström , Roland Strandberg
IPC分类号： H04B1/16 , H03M1/00 , H03M1/12
CPC分类号： H04B1/16 , H02M5/02 , H03D3/007 , H03D7/1466 , H03D7/1483 , H03D7/1491 , H03D2200/0086 , H03M1/002 , H03M1/12 , H04B1/0032 , H04B1/30
摘要： A conversion circuit for converting a complex analog input signal having an in-phase (I) component and a quadrature-phase (Q) component is disclosed. It comprises a channel-selection filter configured to filter the complex analog input signal, thereby generating a channel-filtered I and Q components, and one or more processing circuits. Each processing circuit comprises four mixers for generating a first and a second frequency-translated I component, and a first and a second channel-filtered Q component based on two LO signals with equal LO frequency and a 90° mutual phase shift. Each processing circuit also comprises a combiner circuit for generating a first, a second, a third, and a fourth combined signal proportional to sums and differences between the frequency translated I and Q components. The first and the fourth combined signals form a first complex signal, and the second and the third combined signals form a second complex signal.
摘要翻译：公开了一种用于转换具有同相（I）分量和正交相（Q）分量的复合模拟输入信号的转换电路。它包括被配置为对复合模拟输入信号进行滤波的信道选择滤波器，从而产生信道滤波的I和Q分量，以及一个或多个处理电路。每个处理电路包括用于产生第一和第二频率转换的I分量的四个混频器，以及基于具有相等LO频率和90°相移的两个LO信号的第一和第二信道滤波Q分量。每个处理电路还包括用于产生与频率转换的I和Q分量之间的和和成正比的第一，第二，第三和第四组合信号的组合器电路。第一和第四组合信号形成第一复信号，第二和第三组合信号形成第二复信号。

3. 发明申请

US20160126912A1 Attenuator Control for a Signal Processing Chain 审中-公开
标题翻译：信号处理链的衰减器控制
公开(公告)号：US20160126912A1
公开(公告)日：2016-05-05
申请号：US14896633
申请日：2013-06-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Lars Sundström , Daniele Mastantuono , Sven Mattison , Roland Strandberg
IPC分类号： H03G3/30
CPC分类号： H03G3/3036 , H03G1/0088 , H03G3/3052
摘要： An attenuator control method of a signal processing chain comprising two or more signal processing units is disclosed. One of the two or more signal processing units is a signal attenuator adapted to apply adaptive signal attenuation of an attenuator input signal based on one or more attenuation parameters to provide an attenuator output signal. At least one of the two or more signal processing units has an associated wearout process and a corresponding wearout budget, wherein a wearout event of the wearout process occurs when a level of a wearout indication signal of the signal processing chain is in a wearout region, and wherein the wearout process is modeled by a wearout event cost associated with a corresponding wearout event. The method comprises obtaining an indication of whether a wearout event of the wearout process has occurred. If the obtained indication shows that a wearout event of the wearout process has occurred, the method comprises updating a wearout accumulation metric of the wearout process by the associated wearout event cost, comparing the wearout accumulation metric of the wearout process with one or more wearout thresholds of the wearout process, and adapting the attenuation parameters of the signal attenuator based on the comparison. The method also comprises controlling the signal attenuator based on the attenuation parameters. Corresponding attenuator control arrangement is also disclosed.
摘要翻译：公开了一种包括两个或多个信号处理单元的信号处理链的衰减器控制方法。两个或更多个信号处理单元之一是信号衰减器，其适于基于一个或多个衰减参数来施加衰减器输入信号的自适应信号衰减以提供衰减器输出信号。两个或更多个信号处理单元中的至少一个具有相关联的耗损过程和相应的耗损预算，其中当信号处理链的耗损指示信号的电平处于耗损区域时，发生损耗过程的损耗事件，并且其中所述损耗过程由与相应的泄漏事件相关联的损耗事件成本来建模。该方法包括获得是否发生了流失过程的损耗事件的指示。如果获得的指示显示已经发生了耗损过程的疲劳事件，则该方法包括通过相关的耗损事件成本来更新损耗过程的耗损累积量度，将损耗过程的损耗积累度量与一个或多个损耗阈值进行比较的麻烦过程，并且基于比较来适应信号衰减器的衰减参数。该方法还包括基于衰减参数控制信号衰减器。还公开了相应的衰减器控制装置。

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