Display apparatus with cathode ray tube

Details Display apparatus with cathode ray tube Display apparatus with cathode ray tube

1999-07-22

2000-08-22

Kostak, Victor R.

Television

Basic receiver with additional function

Multimode

348704, 348687, H04N 546

Patent

active

061080454

ABSTRACT:
A display apparatus includes a luminance change detecting unit for detecting change of luminance of a cathode ray tube, a deflection size control quantity adjusting unit connected to the luminance change detecting unit for stabilizing a deflection size by changing a deflection size correcting quantity at different rates of change for a low luminance range and a high luminance range, respectively, on the basis of the detected change of luminance. The deflection size control quantity adjusting unit generates a proper deflection size control quantity adjusting voltage by synthesizing a high frequency component and a low frequency component contained in a signal indicating the luminance change with different gains, respectively.

REFERENCES:
patent: 4521802 (1985-06-01), Ikeda
patent: 4982279 (1991-01-01), Ishii et al.
patent: 5193006 (1993-03-01), Yamazaki
patent: 5291295 (1994-03-01), Srivastava
patent: 5357175 (1994-10-01), Kamada et al.
patent: 5523657 (1996-06-01), Kamei
patent: 5699127 (1997-12-01), Ando et al.

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