Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1986-07-03
1988-03-08
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 11, H04N 1120, H04N 701
Patent
active
047302160
ABSTRACT:
In an apparatus for displaying the picture information of an incoming interlaced television signal in noninterlaced raster scanning display on the faceplate of a picture tube, each video line of the television signal is separated into R, G and B color component signals. Each video line is compressed, or speeded-up, at a variable rate and delayed by a variable delay time to provide a speeded-up signal that is coupled to the corresponding electron beam gun of the picture tube. Each of the variable rate and delay is controlled in accordance with information relating to distortions of the raster scanning display. In this way, distortion, such as east-west or convergence, is reduced when the speeded-up signal is displayed.
REFERENCES:
patent: 3893174 (1975-07-01), Sano et al.
patent: 4463288 (1984-07-01), Judd
patent: 4598309 (1986-07-01), Casey
patent: 4670772 (1987-06-01), Bolger
"Digital System for Horizontal Geometry and Convergence Correction", in the name of R. Deubert, that appeared in digest of technical papers for IEEE International Conference on Consumer Electronics, 1984.
"Digital System for Horizontal Geometry and Convergence Correction", in the name of R. Deubert that appeared in IEEE Transactions on Consumer Electronics, vol. CE-30, No. 3, Aug. 1984.
Casey Robert F.
Wedam Werner F.
Chin Tommy P.
Henig Sammy S.
Laks Joseph J.
RCA Corporation
Whitacre Eugene M.
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