Tape drive controlling device

Details Tape drive controlling device Tape drive controlling device

1991-08-30

1994-07-05

Callahan, Timothy P.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 71, 360 7304, 360 7307, 360 7308, G11B 1546

Patent

active

053273044

ABSTRACT:
A tape drive controlling device includes a first controlling circuit for driving a take-up reel for a tape on the basis of the result of a comparison between a take-up-side tension measured between the take-up reel and a head and a predetermined tension target value, a second controlling circuit for driving a supply reel for the tape on the basis of the result of a comparison between a supply-side tension measured between the supply reel and the head and a predetermined tension target value, a speed detecting circuit for detecting the travel speed of the tape, and a correcting circuit for correcting at least one of the take-up-side and supply-side tension target values on the basis of the result of a comparison between a detection result provided by the speed detecting circuit and a travel speed target value.

REFERENCES:
patent: 3535441 (1970-10-01), Grace
patent: 4104685 (1978-08-01), Chang
patent: 4318140 (1982-03-01), Shigeta
patent: 4341363 (1982-07-01), Inatome
patent: 4807107 (1989-02-01), Fincher
patent: 4945426 (1980-07-01), Okamoto et al.
patent: 5032936 (1991-07-01), Fujioka et al.
patent: 5150263 (1992-09-01), Sakamoto

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