Magnetic tape drive unit having reduced power consumption

Details Magnetic tape drive unit having reduced power consumption Magnetic tape drive unit having reduced power consumption

1997-08-13

1999-09-14

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

360 71, 361688, G11B 1518

Patent

active

059531746

ABSTRACT:
Disclosed herein is a magnetic tape drive unit including a write circuit for writing data onto a magnetic tape, a read circuit for reading data written on the magnetic tape, a cartridge load circuit for controlling a load operation that a magnetic tape cartridge put into the drive unit is moved to a position where a hub of the cartridge is rotatable, and also controlling an unload operation reverse to the load operation, and a tape thread circuit for controlling a thread operation that the magnetic tape is drawn from the cartridge loaded and is then wound around a machine reel, and also controlling an unthread operation reverse to the thread operation. The magnetic tape drive unit further includes a power supply for supplying power to each circuit. An operating condition of each circuit is monitored and the supply of power from the power supply to each circuit is individually switched on or off by a control circuit, thereby allowing power saving.

REFERENCES:
patent: 4519011 (1985-05-01), Bowden
patent: 4672509 (1987-06-01), Speraw
patent: 4685303 (1987-08-01), Branc et al.
patent: 4737867 (1988-04-01), Ishikawa et al.
patent: 5313344 (1994-05-01), Sakaguchi et al.

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