Video processor

Details Video processor Video processor

1974-08-01

1976-09-07

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

With impedance matching

310 98, 333 70T, 333 72, 3401732, H03H 926, H03H 932, H03H 930, G11C 1122

Patent

active

039797007

ABSTRACT:
A video signal processor for repetitive line data, such as the typical TV horizontal scan line. An acoustic surface wave delay line comprising a piezoelectric substrate with an input wave launcher and a plurality of interdigital taps is provided. The video signal line "fits" in the overall delay and electronic circuits (preferably of the integrated circuit type) are connected to the taps. Individual taps each have a weighting amplifier weighting from line center to early and late extremes, and their outputs are summed on the same basis. The sum has a polarity indicative of the signal line centroid sense vis-a-vis the line center and has an amplitude indicative of centroid spacing with respect to said line center.

REFERENCES:
patent: 3030440 (1962-04-01), Schade, Sr.
patent: 3678401 (1972-07-01), Adler
patent: 3736587 (1973-05-01), Bush et al.
patent: 3781721 (1973-12-01), Judd et al.

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