Tape tension control circuit that opens take-up reel tension fee

Details Tape tension control circuit that opens take-up reel tension fee Tape tension control circuit that opens take-up reel tension fee

1992-10-23

1998-02-03

Tran, Thang V.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

2423346, G11B 1543

Patent

active

057151113

ABSTRACT:
A tape tension controlling circuit which eliminates a complicated controlling operation and is produced at a very low cost. A supply side tape tension regulator is provided on the supply reel side while a take-up side tape tension regulator is provided on the take-up reel side with reference to a rotary drum, and displacements of the regulators corresponding to tension values of the magnetic tape are fed back to reel controlling systems for the supply reel and the take-up reel so that the tape tension on the supply reel side and the tape tension on the take-up reel side are individually kept constant. When the magnetic tape is to be fed in a pinch-off condition wherein a pinch roller is spaced away from the magnetic tape, a take-up side tension error signal is inhibited from being supplied.

REFERENCES:
patent: 4318140 (1982-03-01), Shigeta
patent: 4341363 (1982-07-01), Inatome
patent: 4649441 (1987-03-01), Louth
patent: 5222684 (1993-06-01), Yoneda et al.

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