Driving circuits for a multi-digit gas discharge panel

Details Driving circuits for a multi-digit gas discharge panel Driving circuits for a multi-digit gas discharge panel

1976-08-06

1978-05-23

Curtis, Marshall M.

Communications: electrical

Systems

With specific power supply

313484, 315167R, 340324R, G09F 900

Patent

active

040913767

ABSTRACT:
A display energizing circuit associated with calculators for displaying on a time sharing basis numerical or alphanumerical symbols on a multi-digit gas discharge panel. Means are provided for preventing segment signals from being applied to segment electrodes or cathode electrodes of the gas discharge panel at one or more dead digit times which are provided within a one-word time period for other purposes. This avoids damage to circuit elements in the display energizing circuit, for example, switching transistor elements associated with counter electrodes or anode electrodes of the display panel.

REFERENCES:
patent: 3449726 (1969-06-01), Kawamoto et al.
patent: 3646544 (1972-02-01), Yamaguchi
patent: 3924112 (1975-12-01), Kashio
patent: 3992577 (1976-11-01), Amano et al.
patent: 4001809 (1977-01-01), Fukui et al.

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