-
公开(公告)号：US09667348B1
公开(公告)日：2017-05-30
申请号：US13495630
申请日：2012-06-13
CPC分类号： H04B10/60 , H04B10/616 , H04L25/00 , H04L27/00 , H04L27/265
摘要： A receiver of an optical communications system includes a set of two or more analog-to digital A/D converters, a respective transform block connected to an output of each A/D converter, and a summation block. Each A/D converter samples a respective low-bandwidth analog signal comprising a respective portion of a high-bandwidth data signal. Each transform block calculates a set of spectral components of the respective low-bandwidth analog signal. The summation block combines respective spectral components calculated by each transform block to construct spectral terms of a combined signal having a spectrum corresponding to that of the high-bandwidth data signal.
-
公开(公告)号：US07474149B2
公开(公告)日：2009-01-06
申请号：US11818925
申请日：2007-06-15
IPC分类号： H03G3/20
CPC分类号： H03F1/0205 , H03F1/0227 , H03F3/191 , H03F3/24 , H03F2200/102 , H03F2200/331 , H03F2200/451 , H03F2200/504 , H03G3/004
摘要： A radio frequency power amplifier includes a feedback control system coupled to an input signal and a first feedback signal and configured to provide an output; a controlled supply configured to provide power that is controlled in accordance with a signal; and a radio frequency gain stage powered from the controlled supply, driven by the output from the feedback control system, and configured to provide an output signal at the radio frequency to a resonant load, where the first feedback signal corresponds to the output signal. Some embodiments include a sequencer in the feedback control system and others utilize an additional feedback loop to control the power provided by the controlled supply.
摘要翻译： 射频功率放大器包括耦合到输入信号和第一反馈信号并被配置为提供输出的反馈控制系统; 控制电源，被配置为提供根据信号被控制的电力; 以及由所述受控电源供电的射频增益级，由所述反馈控制系统的输出驱动，并且被配置为将所述射频的输出信号提供给谐振负载，其中所述第一反馈信号对应于所述输出信号。 一些实施例包括反馈控制系统中的定序器，并且其它实施例利用附加的反馈回路来控制受控电源提供的功率。
-
3.发明申请System And Method For Processing A Signal With A Filter Employing FIR And IIR Elements 有权使用FIR和IIR元件的滤波器处理信号的系统和方法公开(公告)号：US20110099213A1
公开(公告)日：2011-04-28
申请号：US13001042
申请日：2009-06-23
CPC分类号： H03H9/46 , H03H17/0219 , H03H17/0288
摘要： A system and method for processing a signal with a filter employing FIR and/or IIR elements. The required controller function is decomposed into primary FIR and/or IIR elements and a compensation filter is provided to address the latency in the primary elements, which would result in undesired operation of the filter. Several configurations of suitable filters are discussed, including multi-rate filters and filters with reduced power requirements.
摘要翻译： 一种使用FIR和/或IIR元件的滤波器处理信号的系统和方法。 所需的控制器功能被分解成主FIR和/或IIR元件，并且提供补偿滤波器以解决主要元件中的延迟，这将导致滤波器的不期望的操作。 讨论了适当滤波器的几种配置，包括具有降低的功率要求的多速率滤波器和滤波器。
-
公开(公告)号：US07352237B2
公开(公告)日：2008-04-01
申请号：US11089834
申请日：2005-03-25
IPC分类号： H03F3/38
CPC分类号： H03G11/02 , H03F1/02 , H03F1/0205 , H03F1/0238 , H03F1/34 , H03F3/24 , H03F2200/331 , H03F2200/78
摘要： A radio frequency power amplifier and corresponding methods are arranged and configured to drive or provide a radio frequency signal to a resonant load. The amplifier includes a radio frequency switching stage with an output that is coupled to a resonant circuit and configured to provide an output signal with amplitude modulation corresponding to amplitude modulation of an input signal when powered from a fixed voltage power supply and a feedback control system coupled to the input signal and the output signal. The feedback control system includes a sequencer configured to provide a sequencer output that is used to drive the radio frequency switching stage, where the sequencer output has an OFF state that begins at a variable time corresponding to the input and output signal.
摘要翻译： 射频功率放大器和相应的方法被布置和配置成驱动或提供到谐振负载的射频信号。 放大器包括射频切换级，其输出耦合到谐振电路并且被配置为当从固定电压电源供电时，提供与输入信号的幅度调制相对应的幅度调制的输出信号，并且耦合到反馈控制系统 到输入信号和输出信号。 反馈控制系统包括定序器，其被配置为提供用于驱动射频切换级的定序器输出，其中定序器输出具有在对应于输入和输出信号的可变时间开始的OFF状态。
-
公开(公告)号：US06985722B1
公开(公告)日：2006-01-10
申请号：US09787759
申请日：1999-09-24
IPC分类号： H04M3/00
CPC分类号： H04M7/0081 , H04Q3/0058
摘要： The present invention relates generally to telecommunications, and more specifically to a method and system of providing telecommunication services that is flexible and efficient. Existing Public Switched Telephone Network systems suffer from a number of problems including system complexity, access being proprietary and services being implemented on fixed hardware. As a result, new services are complex and costly to develop, so telcos only provide services that appeal very broadly. The invention provides an open and flexible system by describing communications in terms of graph packets which contain pointers to blocks of software code, rather than containing large blocks of executable code. In the preferred embodiment, these graphs identify software filters which are dedicated to particular tasks, and are based on a standard API. This allows third parties to create new filters and make them available, allowing new services to be provided quickly and easily.
摘要翻译： 本发明一般涉及电信，更具体地涉及提供灵活和高效的电信业务的方法和系统。 现有的公共交换电话网络系统存在许多问题，包括系统复杂性，专有访问和在固定硬件上实现的服务。 因此，新服务开发复杂且成本高昂，因此电信运营商只提供广泛吸引的服务。 本发明通过描述包含指向软件代码块的指针的图形分组来描述通信，而不是包含大的可执行代码块来提供开放和灵活的系统。 在优选实施例中，这些图识别专用于特定任务的软件过滤器，并且基于标准API。 这允许第三方创建新的过滤器并使其可用，允许快速，轻松地提供新的服务。
-
公开(公告)号：US20130207822A1
公开(公告)日：2013-08-15
申请号：US13810702
申请日：2011-07-20
CPC分类号： H03M1/1245 , H03M1/0626 , H03M1/0631 , H03M1/0639 , H03M1/12 , H03M1/1215 , H03M3/458
摘要： An analog to digital conversion system is disclosed which converts an analog signal to a digital representation thereof at a first sampling rate by distributing the analog signal to at least two signal paths, at least one signal path including a limiting mixer to mix the signal with a respective selected square wave and a smoothing (low pass) filter to filter the mixed signal before providing the mixed and filtered signal to a subconverter, the subconverter having a sampling rate less than the first sampling rate, and a digital matrix filter to combine the digital output of each subconverter to form a digital representation of the analog signal as sampled at the first rate.
摘要翻译： 公开了一种模数转换系统，其通过将模拟信号分配到至少两个信号路径将模拟信号转换成其第一采样率的数字表示，至少一个信号路径包括限制混频器以将信号与 相应选择的方波和平滑（低通）滤波器，以在将混合和滤波的信号提供给子转换器之前对混合信号进行滤波，该子转换器具有小于第一采样率的采样率，以及数字矩阵滤波器，以将数字 每个子转换器的输出以形成以第一速率采样的模拟信号的数字表示。
-
公开(公告)号：US06329939B1
公开(公告)日：2001-12-11
申请号：US09252381
申请日：1999-02-18
IPC分类号： H03M300
摘要： A complex filter minimizing mismatch error by averaging the mismatch error by integrating the real and imaginary input signals using the same integrator. A further advantage is that, as compared to known devices, the complex filter uses fewer number of components thereby reducing the consumed power. The complex filter may be used in a complex bandpass sigma-delta modulator, thereby increasing the performance of the sigma-delta modulator. The complex filter used in a sigma-delta modulator analog to digital converter increases performance of the analog to digital conversion since the mismatch noise is minimized. The complex bandpass sigma-delta modulator analog to digital converter include any number of complex filter stages.
摘要翻译： 复杂滤波器通过使用相同的积分器对实数和虚拟输入信号进行积分来平均失配误差来最小化失配误差。 另一个优点是，与已知设备相比，复杂滤波器使用更少数量的组件，从而降低功耗。 复数滤波器可以用在复数带通Σ-Δ调制器中，从而增加Σ-Δ调制器的性能。 用于Σ-Δ调制器模数转换器的复合滤波器增加了模数转换的性能，因为失配噪声被最小化。 复数带通Σ-Δ调制器模数转换器包括任意数量的复杂滤波器级。
-
8.发明授权System and apparatus for distributing a signal to the front end of a multipath analog to digital converter 有权用于将信号分配到多路径模数转换器的前端的系统和装置公开(公告)号：US08818209B1
公开(公告)日：2014-08-26
申请号：US13526965
申请日：2012-06-19
申请人： William Martin Snelgrove , Kim B. Roberts , Bertram Leesti , Shahab Oveis Gharan , Mahmoud Taherzadehboroujeni
发明人： William Martin Snelgrove , Kim B. Roberts , Bertram Leesti , Shahab Oveis Gharan , Mahmoud Taherzadehboroujeni
IPC分类号： H04B10/06
CPC分类号： H04B10/616
摘要： A frequency decimation block for processing an analog input signal including a high-bandwidth data signal to generate a parallel set of parallel output signals, in which each output signal represents a respective portion of the high-bandwidth data signal. A preamplifier is provided for amplifying the input signal. A frequency domain divider divides the amplified input signal to generate a set of frequency band signals including a low frequency band signal, a mid-frequency band signal, and a high frequency band signal. Each frequency band signal is supplied to at least one signal path. A respective non-linear processor is connected in each of M signal paths processes the input signal using a respective branch signal to yield a corresponding composite signal. A respective Low-Pass Filter (LPF) is connected in each signal path, for low-pass filtering at least the composite signals to generate corresponding ones of the parallel output signals.
摘要翻译： 一种用于处理包括高带宽数据信号的模拟输入信号以产生并行的并行输出信号的频率抽取块，其中每个输出信号表示高带宽数据信号的相应部分。 提供用于放大输入信号的前置放大器。 频域分频器对放大的输入信号进行分频，以产生包括低频带信号，中频带信号和高频带信号的一组频带信号。 每个频带信号被提供给至少一个信号路径。 在M个信号路径的每一个中连接相应的非线性处理器，使用相应的分支信号处理输入信号，以产生相应的复合信号。 相应的低通滤波器（LPF）连接在每个信号路径中，用于至少对复合信号进行低通滤波以产生对应的并行输出信号。
-
9.发明授权System and method for processing a signal with a filter employing FIR and IIR elements 有权使用FIR和IIR元件的滤波器处理信号的系统和方法公开(公告)号：US08655936B2
公开(公告)日：2014-02-18
申请号：US13001042
申请日：2009-06-23
IPC分类号： G06F17/10
CPC分类号： H03H9/46 , H03H17/0219 , H03H17/0288
摘要： A system and method for processing a signal with a filter employing FIR and/or IIR elements. The required controller function is decomposed into primary FIR and/or IIR elements and a compensation filter is provided to address the latency in the primary elements, which would result in undesired operation of the filter. Several configurations of suitable filters are discussed, including multi-rate filters and filters with reduced power requirements.
摘要翻译： 一种使用FIR和/或IIR元件的滤波器处理信号的系统和方法。 所需的控制器功能被分解成主FIR和/或IIR元件，并且提供补偿滤波器以解决主要元件中的延迟，这将导致滤波器的不期望的操作。 讨论了适当滤波器的几种配置，包括具有降低的功率要求的多速率滤波器和滤波器。
-
公开(公告)号：US07839803B1
公开(公告)日：2010-11-23
申请号：US09787758
申请日：1999-09-24
CPC分类号： H04M3/56 , H04L65/403 , H04L69/24 , H04M7/006
摘要： A telecommunication system and method for communicating between at least two end users over a telecommunication network, where the communication is defined by a set of parameters. At least two entities, such as one or both of the end users and/or the service providers negotiate an agreed set of values for said parameters that define the desired communication. The entities also negotiate a warranty agreement with the network service provider defining at least one of the agreed parameters to be warranted including a compensation method to be applied should said at least one monitored parameter fail to meet the corresponding one of said agreed values. The agreed warranted parameters are monitored once the communication is established and, in the event of a failure of the monitored parameters to meet agreed values, at least one of the entities is compensated in accordance with the agreed compensation method. When more than two entities are involved in a communication, the compensation from an entity can be divided amongst the other entities according to an agreed scheme.
摘要翻译： 一种用于通过电信网络在至少两个终端用户之间通信的电信系统和方法，其中所述通信由一组参数定义。 至少两个实体，诸如最终用户和/或服务提供商中的一个或两个，协商定义所需通信的所述参数的商定的一组值。 所述实体还与所述网络服务提供商协商保证协议，所述协议规定了至少一个必须保证的约定参数，包括如果所述至少一个被监视的参数不能满足相应的一个所述约定的值，则应用该补偿方法。 在通信建立后，监控约定的参数，并且如果监控参数未能达到商定的价值，则至少有一个实体按照约定的补偿方式进行补偿。 当有两个以上的实体参与通信时，实体的赔偿可以根据商定的方案在其他实体之间分配。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.015 秒)
