Abstracting of digital acquisition memory

    公开(公告)号:US11789039B2

    公开(公告)日:2023-10-17

    申请号:US16222839

    申请日:2018-12-17

    Inventor: Jonathan D. Clem

    CPC classification number: G01R13/0254

    Abstract: An abstracted digital memory acquisition circuit, including an analog input configured to receive an analog signal, an analog-to-digital converter configured to receive the analog signal and convert the analog signal to a first digital signal, a digital input configured to receive a second digital signal, a controller configured to receive the first digital signal and the second digital signal and output a stream of bits, the stream of bits including the first digital signal and the second digital signal, and a control signal, and an output configured to electrically connect to a digital input of a test and measurement instrument and output the stream of bits and the control signal.

    TEST AND MEASUREMENT INSTRUMENT WITH REMOVABLE BATTERY PACK

    公开(公告)号:US20230077447A1

    公开(公告)日:2023-03-16

    申请号:US17944924

    申请日:2022-09-14

    Abstract: A test system includes a test and measurement instrument having one or more inputs for receiving one or more signals to be measured or tested, a display for outputting measurement results or test results, one or more processors for operating the instrument, a chassis housing the instrument, a power connection to receive power for powering the one or more processors from a wall connection. The test system further includes an external battery pack separate from the test and measurement instrument and structured to mechanically and electrically couple to and decouple from the test and measurement instrument, the external battery pack including a DC power source for powering the one or more processors. The test and measurement instrument includes no batteries or other power storage device for powering the one or more processors within the chassis of the instrument.

    GAINING TIMING ACCURACY OF DIGITAL SIGNALS THROUGH AVERAGING IN THE X-AXIS
    5.
    发明申请
    GAINING TIMING ACCURACY OF DIGITAL SIGNALS THROUGH AVERAGING IN THE X-AXIS 有权
    数字信号通过X轴平移获得时序精度

    公开(公告)号:US20140095566A1

    公开(公告)日:2014-04-03

    申请号:US13631854

    申请日:2012-09-28

    Inventor: Jonathan D. Clem

    CPC classification number: G01R31/3177

    Abstract: Rising and falling edges captured by a digital acquisition device appear to chatter on the X-axis by two or more sampling bin boundaries as live acquisition continually updates. This leads to a confusing display of limited usefulness. Averaging of multiple edges eliminates chatter while at the same time increases timing accuracy of the edges beyond the abilities of the base acquisition system. An object of the invention is to display a waveform for an averaged digital signal converted from an analog signal received by a signal processing instrument. A plurality of data acquisitions is stored in memory, and for each data acquisition, a number of rising and falling edges are identified. Each rising and falling edge is counted in each data acquisition. From these counted edges, an average waveform is calculated from the plurality of data acquisitions. The average waveform is displayed as an improved representation of the digital signal.

    Abstract translation: 由数字采集设备捕获的上升沿和下降沿在两个或多个采样点边界上似乎在X轴上颤动,因为实时采集不断更新。 这导致有限的有用性的混乱显示。 多个边缘的平均消除了颤动,同时增加了边缘的定时精度,超出了基本采集系统的能力。 本发明的目的是显示由信号处理装置接收的模拟信号转换的平均数字信号的波形。 多个数据采集被存储在存储器中,并且对于每个数据采集,识别出多个上升沿和下降沿。 每个数据采集中都会计算每个上升沿和下降沿。 从这些计数边缘,从多个数据采集计算平均波形。 平均波形显示为数字信号的改进表示。

    BUILDING SAMPLE RATE INDEPENDENT TIMING DIAGRAMS USING DIGITAL EDGE AVERAGING
    6.
    发明申请
    BUILDING SAMPLE RATE INDEPENDENT TIMING DIAGRAMS USING DIGITAL EDGE AVERAGING 有权
    使用数字边缘平均建立样本速率独立时序图

    公开(公告)号:US20140088901A1

    公开(公告)日:2014-03-27

    申请号:US13628971

    申请日:2012-09-27

    Inventor: Jonathan D. Clem

    CPC classification number: H03K5/1532 G01R13/02 H04L1/205

    Abstract: A method can include receiving an input signal having multiple signal edges, performing an initial scan of the input signal to identify peaks corresponding to the signal edges, and determining whether each peak is a Uniformly Synchronous (US) edge or a Quasi-Synchronous (QS) edge. The method can also include generating a final waveform and displaying the final waveform on a display device.

    Abstract translation: 一种方法可以包括接收具有多个信号边缘的输入信号,执行输入信号的初始扫描以识别对应于信号边缘的峰值,以及确定每个峰值是均匀同步(US)边缘还是准同步(QS )边。 该方法还可以包括生成最终波形并在显示装置上显示最终波形。

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