Adaptive end of tape detection apparatus and method

Details Adaptive end of tape detection apparatus and method Adaptive end of tape detection apparatus and method

1984-09-20

1985-12-31

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360 741, B65H 5938, G03B 104, G11B 1532

Patent

active

045616086

ABSTRACT:
The changing diameters of the respective tape packs wound on the supply and take-up reel are continually measured. The measured diameters of each reel are compared to a stored minimum diameter value corresponding to an end of tape on that particular reel. When the apparatus is in a learning mode, the stored minimum diameter values for each reel are updated every time when a new measured value is smaller than the previously stored value. The last stored value is utilized for comparison in an end of tape detection mode, to allow stopping the tape transport mechanism before the end of tape would run off that reel to prevent damaging the transducers or the tape.

REFERENCES:
patent: 3982160 (1976-09-01), Goldschmidt
patent: 4213583 (1980-07-01), Mitani et al.
patent: 4232371 (1980-11-01), Kamoto

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