High bandwidth oscilloscope

Details High bandwidth oscilloscope High bandwidth oscilloscope

2008-05-13

2008-05-13

Wachsman, Hal (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S075000, C702S076000, C341S155000, C341S126000

Reexamination Certificate

active

11729606

ABSTRACT:
A method for improving bandwidth of an oscilloscope involves, in preferred embodiments, the use of frequency up-conversion and down-conversion techniques. In an illustrative embodiment the technique involves separating an input signal into a high frequency content and a low frequency content, down-converting the high frequency content in the analog domain so that it may be processed by the oscilloscope's analog front end, digitizing the low frequency content and the down-converted high frequency content, and forming a digital representation of the received analog signal from the digitized low frequency content and high frequency content.

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