Oscilloscope Responsiveness - HP 54645A User's And Service Manual

MegaZoom Concepts

Oscilloscope Responsiveness

Oscilloscope Responsiveness
An important element of an oscilloscope is how responsive it is to control
changes. After a control is changed, such as the time/division, if you must
wait for the test instrument to respond, the feedback loop between the
instrument and you can become difficult. You could confuse adjustments
because of the delay between making a change to the instrument and seeing
the effect of that change take place.
MegaZoom Technology
In MegaZoom technology, the primary task of processing acquisition memory
into scope waveforms using proprietary display techniques is distributed to
waveform translator hardware. The processor's primary responsibility is to
scan the keyboard and manage I/O ports. Because the dedicated waveform
translator can draw waveforms quickly, as opposed to a general-purpose
processor, the other processor is dedicated to the user interface tasks. User
input is acted upon immediately and the scope screen very quickly reflects
the user's changes. This results in the highly-responsive MegaZoom scope
display.
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