Record carrier for a television signal

Details Record carrier for a television signal Record carrier for a television signal

1974-12-06

1976-06-15

Griffin, Robert L.

Telegraphy

Systems

Simplex-reversing periodic

1791003V, 358 4, 360 19, H04N 576

Patent

active

039638626

ABSTRACT:
In a record carrier for the storage of a television signal in an optically readable track-shaped structure, the information is contained in the frequency and/or amplitude of an undulation of the tracks of constant trackwidth. Via a phase-reading mechanism an electric signal can be obtained which is substantially linear with the television signal to be written. When transferring a television signal via such a record carrier the electric signals need not be limited abruptly. As a result, no higher harmonics occur, and substantially no mixing products occur in the frequency band of the luminance information and in the frequency band(s) of other information, for example chrominance and sound information.

REFERENCES:
patent: 1916973 (1933-07-01), Friebus
patent: 2086934 (1937-07-01), Bonneau

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