Automatic digital convergence correcting method and apparatus th

Details Automatic digital convergence correcting method and apparatus th Automatic digital convergence correcting method and apparatus th

1994-08-31

1996-03-05

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

348745, 348807, H01J 2951

Patent

active

054970547

ABSTRACT:
In an automatic digital convergence correction method and apparatus therefore employing a CRT-type display, the vertical and horizontal convergence with respect to the red and green CRTs are tracked based on the ideal seed point within a test pattern generated via the green CRT so that the vertical and horizontal convergence match, to thereby enhance the accuracy of a correction operation and reduce the correction time.

REFERENCES:
patent: 4999703 (1991-03-01), Henderson
patent: 5020116 (1991-05-01), Macaulay
patent: 5345262 (1994-09-01), Yee et al.

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