UN DISPOSITIVO PORTADOR DE REGISTRO EN EL QUE ESTA ALMACENA-DA UNA SENAL DE TELEVISION Y UN APARATO PARA LEERLO.

摘要

A record carrier is described in which a television signal is stored in an optically readable information structure of trackwise arranged areas alternating with intermediate areas. The tracks exhibit an undulation. 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.