Equivalent Real-Time Oscilloscope
By employing software clock recovery technology and a single high-resolution analog-to-digital converter, the problems of high cost and large error in traditional oscilloscopes are solved, resulting in a low-cost, high-bandwidth, low-jitter test and measurement instrument suitable for production testing.
CN122307173APending Publication Date: 2026-06-30TEKTRONIX INC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TEKTRONIX INC
- Filing Date
- 2021-02-22
- Publication Date
- 2026-06-30
Smart Images
Figure CN122307173A_ABST
Abstract
Test and measurement instruments, such as oscilloscopes, have Nyquist frequencies lower than analog bandwidth. These instruments include: an input configured to receive a signal under test; a single analog-to-digital converter configured to receive the signal under test, sample the signal under test at a sampling rate, and generate digital samples of the signal under test at a single output; and one or more processors configured to determine the frequency of the signal under test without triggering and without hardware clock recovery, and to reconstruct a representation of the signal under test based on the determined signal frequency, the pattern length of the signal under test, and / or the sampling rate.
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