Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1976-04-12
1978-08-22
Wilbur, Maynard R.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
G01R 1328
Patent
active
041091833
ABSTRACT:
An oscilloscope has an additional vertical display mode to enable the display of the trigger signal, activating the sweep generating circuit, simultaneously with the display of the normal vertical channels. The triggering source, level, slope and subtle time relationships can be verified and examined continuously and concurrently with the measurements upon the normal vertical channels. The displayed trigger signal is in correct time relationship with the normal vertical channels and the trigger level threshold is identified.
REFERENCES:
patent: 3124884 (1964-03-01), Capecelatro et al.
patent: 3795834 (1974-03-01), Andrews et al.
Cornish Eldon C.
Millard Joe K.
Blum T. M.
Hewlett--Packard Company
Sherrard Michael L.
Wilbur Maynard R.
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