Display aspect ratio adaptation

Details Display aspect ratio adaptation Display aspect ratio adaptation

1992-08-24

1994-02-15

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315408, G09G 104, H01J 2970

Patent

active

052870421

ABSTRACT:
A selectable aspect ratio raster is generated on a CRT with a 16:9 aspect ratio screen by a deflection yoke and deflection amplifier. The deflection amplifier is coupled in a non-floating configuration to the deflection yoke. This permits a switching arrangement to control the horizontal deflection amplitude by the selectable addition of inductance in series, with the yoke. The switching arrangement also controls other deflection circuit parameters to provide optimum raster correction at the selected aspect ratio.

REFERENCES:
patent: 4081852 (1989-01-01), Kashiwagi
patent: 4516058 (1985-05-01), Haferl
patent: 4547708 (1985-10-01), Haferl
patent: 4588929 (1986-05-01), Wedam et al.
patent: 4695774 (1987-09-01), Gent et al.
patent: 4705993 (1987-11-01), Kashiwagi
patent: 4709193 (1987-11-01), Dietz
patent: 4761586 (1988-08-01), Wharton
patent: 4859915 (1989-08-01), DeCraemer

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