Tape speed control system for magnetic tape recorder

Details Tape speed control system for magnetic tape recorder Tape speed control system for magnetic tape recorder

1983-07-05

1986-10-28

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

318 7, 242203, G11B 1546

Patent

active

046202412

ABSTRACT:
A tape speed control system for a magnetic tape recorder allows a magnetic tape to be fed at any desired speed in a fast feed mode operation. In a fast feed mode operation, rotation periods of take-up and supply reels are detected and one of them is weighted relative to the other. The sum of the weighted and non-weighted periods is compared with a predetermined reference period and the resulting difference signal is used to control drive motors associated with the respective reels, thereby causing the tape to run at a desired speed regardless of the roll radius thereof built up on the take-up reel.

REFERENCES:
patent: 3704401 (1972-11-01), Miller
patent: 3912990 (1975-10-01), Kuhnlein et al.
patent: 4051415 (1977-09-01), Martin
patent: 4121138 (1978-10-01), Flint et al.
patent: 4394994 (1983-07-01), Oono
patent: 4479159 (1984-10-01), Kamei et al.
Microcomputer Dictionary and Guide, Sippl et al., 1976.

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