Non-linear aperture correction circuit

Details Non-linear aperture correction circuit Non-linear aperture correction circuit

1979-09-19

1982-01-19

Cardillo, Jr, Raymond F.

Facsimile and static presentation processing

Static presentation processing

Attribute control

3581285, 369126, H04N 576

Patent

active

043120130

ABSTRACT:
In a video disc system, geometric variations are recorded on the surface of the record and are representative of recorded picture and sound information. In a video disc playback apparatus for recovering picture and sound information from such a prerecorded record, a playback stylus is utilized to detect the geometric variations. Sound interference in the video signals may be produced by the non-linear characteristics of the playback stylus. A non-linear aperture correction circuit interposed between the playback stylus and the demodulator circuitry of the playback apparatus effects a substantial control of the intermodulation products.

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Principles of Color TV, "Gama Connection", McIlwain et al, (1956) pp. 124-127.
Color TV, "Gama Connection", Carnt et al, vol. 1, (1961) pp. 84-86.

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