HP 54710A User's Reference Manual page 393

Glossary
Edge triggering The traditional
triggering mode. A trigger event is
defined as a transitioning edge of a
specified polarity crossing a
specified voltage threshold.
Digital BW limit A low-pass filter
implemented in firmware that
removes high-frequency noise from a
waveform.
Equivalent-time sampling A
waveform is reconstructed from data
points that are acquired from several
trigger events. The equivalent time
sampling mode is typically used on
repetitive signals.
Flash ROM A type of
electronically erasable and
programmable read only memory
(EEPROM) used to store the
instrument's firmware. The use of
this variety of memory makes it
possible to upgrade the instrument's
firmware using only a floppy disk
without having to touch or change
any of the internal components.
Glitch triggering Glitch
triggering allows the oscilloscope to
trigger on narrow pulses.
High resolution drawing mode
A method of drawing waveforms on
the display that uses the full
resolution of the data in the
Glossary-2
waveform memory making the
display appear to have a higher
vertical resolution. When a data
point lies between two adjacent
pixels, the oscilloscope lights up
both pixels, but varies the brightness
of each pixel. The brightness of
each pixel is proportional to how
close it is to the data point. Your eye
is then drawn to a point between the
two pixels at the location where the
actual data resides in the waveform
memory.
Internal waveform file format
A binary file format that the
oscilloscope uses to store waveforms
to a disk. The binary file format uses
less disk space than the text file
formats. Also, the binary file format
is a convenient method for
transporting waveforms from
oscilloscope to oscilloscope, or from
a disk back into the oscilloscope.
Interpolate A finite impulse
response digital filter that makes the
best possible reconstruction of the
waveform. The reconstruction is
done by using digital signal
processing to add data points
between the acquired data points.
Then, linear interpolation is
performed with the higher sample
density.