Communications: electrical – Continuously variable indicating – With meter reading
Patent
1981-05-01
1984-10-09
Curtis, Marshall M.
Communications: electrical
Continuously variable indicating
With meter reading
340768, 340811, G09G 310
Patent
active
044764669
ABSTRACT:
A method of driving a gas-discharge panel having at least one reset electrode and cathode and anode groups for forming N electrode pairs. The cathodes are p-phase connected (p.gtoreq.3) while the anodes are m-phase connected (m.ltoreq.p). The reset electrode is applied with a reset pulse voltage having a period of T of one frame. Cathode pulse voltages having their pulse widths of (p-1)T/N are successively applied to the cathodes for respective p phases with a phase shift of T/N to each other while anode pulse voltages having their pulse widths of at maximum (m-1)T/N are successively applied to the anodes for respective m phases with a phase shift of T/N to each other. A reset discharge which is generated by the reset pulse voltage and the first one of the cathode pulse voltages and anode pulse voltages applied for each frame and having a value cooperating with the reset pulse voltage value is successively transferred by means of the cathode and anode voltages to display desired information. As a result, the display luminance can be improved (p-1) times without impairing the self-scanning function.
REFERENCES:
patent: 3781600 (1973-12-01), Coleman
patent: 3839713 (1974-10-01), Urade et al.
patent: 4080597 (1978-03-01), Mayer et al.
patent: 4109181 (1978-08-01), Murase et al.
patent: 4253044 (1981-02-01), Smith
Mitani Eisuke
Okamoto Yukio
Sumioka Atsushi
Curtis Marshall M.
Hitachi , Ltd.
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