Electromechanical means for determining signature for reeled web

Details Electromechanical means for determining signature for reeled web Electromechanical means for determining signature for reeled web

1982-01-25

1984-12-04

Martin, John C.

Measuring and testing

Miscellaneous

364900, 382 1, G11B 500, G11B 574

Patent

active

044856741

ABSTRACT:
One embodiment discloses a method and apparatus whereby each time a tape is wound upon a prescribed reel, the winding pattern may be assumed to leave the array of tape edges in a unique "edge profile" represented by the position of each winding edge as viewed from one side of the reel along a radial direction--this "profile" being interpreted as a "winding signature"; the signature may be detected and recorded in a convenient encoded fashion for possible use in uniquely identifying and documenting each unspooling/rewind sequence to thereby monitor tape use.

REFERENCES:
patent: 4337659 (1982-07-01), Ragle
Ennes, Harold E., Television Broadcasting Tape Recording Systems, Howard W. Sams and Co., Indianapolis, IN, 1979, p. 70.

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