Television receiver having character generator with non-line...

Details Television receiver having character generator with non-line... Television receiver having character generator with non-line...

H - Electricity

04

N

350/3, 350/88

H04N 5/445 (2006.01) G09G 5/12 (2006.01)

Patent

CA 1241433

ABSTRACT A character generator in a receiver provides a character signal in raster scan form for display with a received video signal. An oscillator, not synchronized with the horizontal synchronizing component of the video signal, supplies a clock signal to the generator for controlling timing of character elements. A control unit provides a control signal representative of a time difference between the clock signal and the horizontal synchronizing component. A delay unit, interposed in the clock signal path, selectively imparts delay to the clock signal in response to the control signal for reducing line-to-line variations in the timing of displayed character elements.

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