Recording analog characteristics of data from a data line in a protocol analyzer
OwnerSai Pong Siuinventor
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Abstract
This disclosure relates to systems and methods for recording analog characteristics of data. In one example embodiment, a method for recording and outputting a waveform in a protocol analyzer includes receiving analog data, converting the analog data to digital data that represents variations in a signal characteristic of the analog data over time, storing a sample of the digital data in a memory of a protocol analyzer; and presenting the sample of the digital data as a waveform on a user interface of the protocol analyzer.
Claims8
A method for recording and outputting a waveform, the method comprising:
- receiving analog data;
- converting the analog data to digital data, the digital data representing variations in a signal voltage of the analog data over time;
- storing a sample of the digital data in a memory of a protocol analyzer;
- presenting the sample of the digital data as a waveform on a user interface of the protocol analyzer;
- collecting a trace of data that constitutes a user-specified event;
- analyzing the data in the trace;
- and
- presenting an analysis of the data on the user interface of the protocol analyzer, wherein presenting the sample of the digital data as a waveform comprises presenting as a waveform a portion of the digital data that constitutes the user-specified event in the trace of data.
A protocol analyzer that is configured to record and output a waveform, the protocol analyzer comprising:
- an analyzer module comprising a trace buffer;
- a waveform capture module comprising:
- an analog-to-digital converter whose input comprises an analog data stream and whose output comprises a digital data stream that corresponds to the analog data stream, the digital data stream representing variations in a signal voltage of the analog data stream over time;
- a filter whose input comprises the digital data stream output from the analog-to-digital converter and whose output comprises those portions of the digital data stream that correspond to a user-specified event;
- and
- a memory whose input and output comprise the portions of the digital data stream output from the filter;
- and
- a user interface whose input comprises the portions of the digital data stream output of the memory and whose output comprises the portions of the digital data stream output of the memory presented as a waveform.
Dependencies are inferred from the claim text.