Optically readable record carrier and playback system

Details Optically readable record carrier and playback system Optically readable record carrier and playback system

G - Physics

11

B

352/32.21

G11B 7/00 (2006.01) G11B 7/007 (2006.01) G11B 7/13 (2006.01) H04N 5/76 (2006.01)

Patent

CA 1070011

ABSTRACT: A record carrier is described in which a tele- vision signal is stored in an optically readable infor- mation structure of trackwise arranged areas alternat- ing with intermediate areas. The tracks exhibit an un- dulation. The luminance information is contained in the spatial frequency of the areas and the other information, for example chrominance and sound information, in the variation of the undulation. The luminance information and the other information can be read independently by means of a suitable detector arrangement. - 33 -

236761

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