Sound recording apparatus for blank films and tapes

Details Sound recording apparatus for blank films and tapes Sound recording apparatus for blank films and tapes

1985-08-02

1987-07-07

Faber, Alan

Dynamic information storage or retrieval

Duplication or copying

346 76L, 369100, 264106, G11B 1118

Patent

active

046791833

ABSTRACT:
An apparatus and method for reproducing sound recordings on blank films and tapes of plastic materials in which a continuous master film carrying sinuous lines of imprint containing the sound recordings to be reproduced are pressed against a blank tape as both the master film and blank tape are moved continuously at a constant speed and in synchronism past a pressure applying station. A laser is provided to emit a very fine and precise laser heat beam to heat and soften local zones of the blank tape a fraction of a second before being aligned to receive the imprints.

REFERENCES:
patent: 3689692 (1972-09-01), Ih
patent: 3716286 (1973-02-01), St. John
patent: 3732363 (1973-05-01), Glenn
patent: 4383261 (1983-05-01), Goldberg

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