Method and apparatus for applying signal voltages to electrostat

Details Method and apparatus for applying signal voltages to electrostat Method and apparatus for applying signal voltages to electrostat

1982-02-04

1984-04-03

Tarcza, Thomas H.

Recorders

Electric recording

Electrochemical

G01D 1506

Patent

active

044411111

ABSTRACT:
A method and apparatus for applying signal voltages to an electrostatic recording multi-stylus electrode device composed of main electrodes and control electrodes. A decoder detects the presence or absence of a single "black" bit or dot signal within an input video signal. If multiple "black" bits are present or if no "black" bits are present, a normal control voltage is applied to the control electrodes. Otherwise, if a single "black" bit is detected, a voltage higher than the normal control voltage is applied to the control electrodes. By so doing, the occurrence of missing single "black" dots is substantially eliminated.

REFERENCES:
patent: 3792495 (1974-02-01), Bliss et al.

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