Spectrum Analysis and Plant Diagnostic Tool for Communications Systems
    1.
    发明申请
    Spectrum Analysis and Plant Diagnostic Tool for Communications Systems 有权
    通信系统的频谱分析和植物诊断工具

    公开(公告)号:US20130125183A1

    公开(公告)日:2013-05-16

    申请号:US13435433

    申请日:2012-03-30

    IPC分类号: H04N17/00

    摘要: A system, method, and apparatus to allow an operator of a broadcast communication system, such as a cable television or satellite television service to provide some examples, to diagnose performance of this communication system remotely. The operator of a first communication device, such as a cable modem termination system (CMTS) to provide an example, may remotely diagnosis performance problems, or potential performance problems, occurring at a second communication device, such as a cable modem (CM) to provide an example, or a group of second communication devices. For example, the operator of the first communication device may view a spectrum analysis of communication signals being routed to, processed by, and/or provided by the second communication device, or group of second communication devices, to diagnose the performance problems, or the potential performance problems, in real time.

    摘要翻译: 允许诸如有线电视或卫星电视服务的广播通信系统的操作者提供一些示例的系统,方法和装置来远程诊断该通信系统的性能。 提供示例的诸如电缆调制解调器终端系统(CMTS)的第一通信设备的运营商可以远程诊断在第二通信设备(例如电缆调制解调器(CM))处发生的性能问题或潜在的性能问题 提供示例或一组第二通信设备。 例如,第一通信设备的运营商可以查看通过第二通信设备或第二通信设备组路由到,处理和/或提供的通信信号的频谱分析来诊断性能问题,或者 潜在的性能问题,实时。

    Direct Digital Conversion Tuner and Method for Using Same
    2.
    发明申请
    Direct Digital Conversion Tuner and Method for Using Same 有权
    直接数字转换调谐器及其使用方法

    公开(公告)号:US20090181629A1

    公开(公告)日:2009-07-16

    申请号:US12406518

    申请日:2009-03-18

    申请人: Leonard DAUPHINEE

    发明人: Leonard DAUPHINEE

    IPC分类号: H04B1/18 H03M1/12

    摘要: A direct sampling tuner includes a low noise amplifier and an optional dynamically configurable band pass filter coupled to the low noise amplifier. The optional filter is configured to pass a selected band of channels. The tuner further includes a relatively high accuracy, multi-bit analog-to-digital converter (“ADC”) coupled to the LNA or to the optional dynamically configurable band pass filter. The ADC operates at greater than about twice a frequency of a sampled signal. The ADC directly samples the spectrum of the selected channels at the Nyquist frequency, thus avoiding image problems presented by conventional tuners.

    摘要翻译: 直接采样调谐器包括低噪声放大器和耦合到低噪声放大器的可选的动态可配置带通滤波器。 可选过滤器被配置为传递所选频道的频带。 调谐器还包括耦合到LNA或可选的动态可配置带通滤波器的相对高精度的多位模数转换器(“ADC”)。 ADC的工作频率大于采样信号频率的两倍。 ADC直接以奈奎斯特频率对所选通道的频谱进行采样,从而避免了常规调谐器所呈现的图像问题。

    Apparatus to Monitor Process-Based Parameters of an Integrated Circuit (IC) Substrate
    3.
    发明申请
    Apparatus to Monitor Process-Based Parameters of an Integrated Circuit (IC) Substrate 有权
    监控集成电路(IC)基板工艺参数的装置

    公开(公告)号:US20090040059A1

    公开(公告)日:2009-02-12

    申请号:US12254364

    申请日:2008-10-20

    IPC分类号: G08B1/08

    摘要: A process monitor measures the absolute value of unit sample resistors and transistors on a common Integrated Circuit (IC) substrate. This information can be used to adjust the gain of an amplifier assembly to a desired value, or to determine the true, corrected gain of such the amplifier assembly. Also, process information about process variations corresponding to the common IC substrate can be collected from the process monitor. Gain correction factors are derived and applied to the amplifier assembly to compensate for the process variations using the gain value and the process information.

    摘要翻译: 过程监控器测量公共集成电路(IC)衬底上的单位采样电阻和晶体管的绝对值。 该信息可用于将放大器组件的增益调整到期望值,或者确定这种放大器组件的真实的校正增益。 此外,可以从过程监视器收集关于对应于公共IC基板的工艺变化的处理信息。 增益校正因子被导出并应用于放大器组件,以使用增益值和过程信息补偿过程变化。