Convergence correcting device

Details Convergence correcting device Convergence correcting device

1996-02-23

1997-01-21

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

348807, H01J 2951

Patent

active

055962483

ABSTRACT:
A convergence correcting device in a CRT display apparatus is free from any necessity of adjustment of a convergence correction rate even if a raster size is changed. The convergence correcting device generates a modified blanking pulse having a pulse width which becomes larger as an amplitude of a deviated voltage becomes larger, and generates a convergence correction signal in accordance with the modified blanking pulse.

REFERENCES:
patent: 5414329 (1995-05-01), George

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