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1. 发明申请

US20100204938A1 AMPLITUDE DISCRIMINATION USING THE FREQUENCY MASK TRIGGER 有权
标题翻译：使用频率掩码触发信号的振幅辨别
公开(公告)号：US20100204938A1
公开(公告)日：2010-08-12
申请号：US12369660
申请日：2009-02-11
申请人： Alfred K. HILLMAN, JR. , Thomas C. Hill, III
发明人： Alfred K. HILLMAN, JR. , Thomas C. Hill, III
IPC分类号： G01R23/16
CPC分类号： G01R13/0254 , G01R23/163
摘要： A frequency mask trigger having frequency selective amplitude discrimination capability is provided for triggering when selected frequency components of an input signal fail to reach a desired power level. A frame of digital data representing an input signal is transformed into a frequency spectrum having at least one frequency bin, each frequency bin having a power amplitude value. Each power amplitude value is compared to an upper lower reference power levels and a lower reference power level. A trigger signal is generated when the power amplitude value in any frequency bin is above the lower reference power level and below the upper reference power level for a specified time duration.
摘要翻译：提供具有频率选择性振幅识别能力的频率屏蔽触发器，用于当输入信号的选定频率分量不能达到期望的功率电平时进行触发。表示输入信号的数字数据的帧被变换成具有至少一个频率仓的频谱，每个频率仓具有功率振幅值。将每个功率振幅值与较低的参考功率电平和较低的参考功率电平进行比较。当任何频率仓中的功率振幅值高于较低的参考功率电平且低于上限参考功率电平达指定持续时间时，产生触发信号。

2. 发明申请

US20120041701A1 TIME-DOMAIN TRIGGERING IN A TEST AND MEASUREMENT INSTRUMENT 有权
标题翻译：测试和测量仪器中的时域触发
公开(公告)号：US20120041701A1
公开(公告)日：2012-02-16
申请号：US12856472
申请日：2010-08-13
申请人： Alfred K. HILLMAN, JR. , Marcus K. DA SILVA , Kathryn A.. ENGHOLM , Kenneth P. DOBYNS
发明人： Alfred K. HILLMAN, JR. , Marcus K. DA SILVA , Kathryn A.. ENGHOLM , Kenneth P. DOBYNS
IPC分类号： G01R13/02 , H03K5/153 , G06F19/00
CPC分类号： G01R13/0254 , G01R23/16
摘要： Embodiments of this invention provide enhanced triggering capabilities such as frequency and phase triggering in a test and measurement instrument, such as a Real-Time Spectrum Analyzer (RTSA) or oscilloscope. A test and measurement instrument can include input terminals to receive RF signals, an ADC to digitize the RF signals, a digital downconverter to produce I and Q baseband component information, and a power detector to determine a power level using the I and Q information. A comparator compares the power level received from the power detector with a user-definable power threshold, and produces a logic signal for enabling one or more phase or frequency demodulators. The one or more demodulators produce IQ-based time-domain traces derived from the I and Q component information when the power level determined by the power detector exceeds the power threshold. Trigger circuitry is configured to trigger on an event responsive to a delayed trigger enable signal.
摘要翻译：本发明的实施例提供了诸如实时频谱分析仪（RTSA）或示波器之类的测试和测量仪器中的增强的触发能力，例如频率和相位触发。测试和测量仪器可以包括用于接收RF信号的输入端子，用于数字化RF信号的ADC，用于产生I和Q基带分量信息的数字下变频器，以及使用I和Q信息来确定功率电平的功率检测器。比较器将从功率检测器接收的功率电平与用户可定义的功率阈值进行比较，并产生用于启用一个或多个相位或频率解调器的逻辑信号。当由功率检测器确定的功率电平超过功率阈值时，一个或多个解调器产生从I和Q分量信息导出的基于IQ的时域轨迹。触发电路被配置为在响应于延迟的触发使能信号的事件上触发。

3. 发明申请

US20100204939A1 TIME QUALIFIED FREQUENCY MASK TRIGGER 有权
标题翻译：时间合格频率触发器
公开(公告)号：US20100204939A1
公开(公告)日：2010-08-12
申请号：US12369673
申请日：2009-02-11
申请人： Alfred K. HILLMAN, JR. , Steven L. HARWOOD
发明人： Alfred K. HILLMAN, JR. , Steven L. HARWOOD
IPC分类号： G01R23/16
CPC分类号： G01R13/0254
摘要： A time qualified frequency mask trigger triggers on signals that violate a frequency mask for at least a specified time duration. A frame of digital data representing an input signal is transformed into a frequency spectrum having at least one frequency bin, with each frequency bin having a power amplitude value. A trigger signal is generated when any of the power amplitude values violates an associated reference power level for at least a specified time duration.
摘要翻译：时间限定的频率屏蔽触发触发在至少指定的持续时间内违反频率掩码的信号。表示输入信号的数字数据的帧被变换成具有至少一个频率仓的频谱，每个频率仓具有功率振幅值。当任何功率幅度值在至少指定的持续时间内违反相关参考功率电平时，产生触发信号。

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