Display apparatus having plural scanning frequencies

Details Display apparatus having plural scanning frequencies Display apparatus having plural scanning frequencies

1993-06-24

1994-10-25

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

348536, H01J 2970, H01J 2972

Patent

active

053592654

ABSTRACT:
A display apparatus for displaying a video image operates with plural horizontal scanning frequencies. The apparatus includes a horizontal scanning frequency oscillator for generating a signal in synchronism with a horizontal synchronous signal of an input video signal; and a control unit for controlling a frequency of an output of the horizontal scanning frequency oscillator corresponding to the horizontal synchronous signal of the input video signal. A multi-scan video monitor may be provided for displaying the image relative to any of the plural horizontal scanning frequencies without any turbulence.

REFERENCES:
patent: 5138283 (1992-08-01), Tanizoe
patent: 5212552 (1993-05-01), Matsumoto

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