Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1978-08-25
1980-09-30
Hubler, Malcolm F.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
H01J 3110
Patent
active
042258103
ABSTRACT:
A waveform comparison and display system using a cathode ray tube, which is provided with a digital memory function for sequentially storing input signal levels in digital quantities and re-reading them out under control of desired clock pulses and with a display function for displaying on the cathode ray tube two waveforms obtained in outputs produced by high-speed switching of the input signal and an analog signal re-read out. The storing operation and the sweep operation of the cathode ray tube are controlled by a trigger signal synchronized with the input signal. The generation of the clock pulses is start-stop controlled in synchronism with the sweep. Accordingly, the two waveforms are displayed on the screen of the cathode ray tube in such a manner that they are stationary with respect to each other.
REFERENCES:
patent: 2962625 (1960-11-01), Berwin et al.
patent: 3543269 (1970-11-01), Dudley
patent: 3599034 (1971-08-01), Fischer, Jr. et al.
patent: 3721856 (1973-03-01), Dick
patent: 3938003 (1976-02-01), Shimizu
patent: 4069481 (1978-01-01), Easy et al.
Adams Bruce L.
Burns Robert E.
Hubler Malcolm F.
Iwasaki Tsushinki Kabushiki Kaisha
Lobato Emmanuel J.
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