Combined recording of magnetic data and optical guide track on p

Details Combined recording of magnetic data and optical guide track on p Combined recording of magnetic data and optical guide track on p

1992-12-23

1995-01-24

Hajec, Donald

Dynamic magnetic information storage or retrieval

Recording on or reproducing from an element of diverse utility

Motion picture film

G11B 3100

Patent

active

053846648

ABSTRACT:
In a photographic camera, a combined light source/magnetic head writes data into a magnetic recording material of a photographic filmstrip in a data track and exposes a guide track in a predetermined location relative to the data track during advancement of the filmstrip. The filmstrip is advanced past the combined light source/magnetic head and the light source is energized to optically expose the guide track while the magnetic head is operated to write the data. After processing of the filmstrip, the guide track is made visible. A processor can receive the filmstrip and use the guide track to properly position a magnetic read head in proper relation to the recorded data track to retrieve the data.

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