Detection of a lower limit of tape head travel in a single...

Details Detection of a lower limit of tape head travel in a single... Detection of a lower limit of tape head travel in a single...

2006-06-13

2006-06-13

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07061711

ABSTRACT:
Detecting of a lower limit of tape head travel in a single reel tape drive discontinues signaling a tape head to move downward during initialization when the tape head as reach the lower limit of travel. Upon initialization, a processor steps the tape head housing to the lower limit of travel. A mechanical link at the bottom of the tape head engages a tape guide within a tape path and moves the tape guide away from the tape head. Movement of the tape guide pulls additional takeup leader from the takeup reel which rotates the guide rollers within the tape path. A tachometer coupled to one of the guide rollers within the tape path adjust a tachometer count which is monitored by the processor. In response to the change in the tachometer count, the processor discontinues stepping the tape head housing downward.

REFERENCES:
patent: 4786984 (1988-11-01), Seeman
patent: 6257514 (2001-07-01), Morris et al.

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