Generating a scan velocity modulation signal
AssigneeKoninklijke Philips Electronics N.V.
InventorChun Hsing Wu
Life of this patent
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Abstract
The processing unit (1) for generating a scan velocity modulation signal (DS) has an input for receiving a video signal (VS) and an output for supplying a modulation signal (DS). The unit (1) comprises a series connection of, successively, a coring circuit (C), a differentiator (D), and a limiter (L). The display device (16) comprises a cathode ray tube (10) and the processing unit (1).
Claims10
A processing unit (1) for generating a scan velocity modulation signal (DS), the processing unit having an input for receiving a video signal (VS), and an output for supplying the modulation signal (DS), characterized in that the processing unit comprises, successively from the input to the output, a coring circuit (C), a differentiator (D), and a limiter (L).
A method of generating a scan velocity modulation signal (DS) wherein a video signal (VS) is subjected to the successive steps of:
- coring;
- differentiating;
- and
- limiting an amplitude of the video signal (VS).
Dependencies are inferred from the claim text.