Mitigating the effects of inoperable servo readers used for...

Details Mitigating the effects of inoperable servo readers used for... Mitigating the effects of inoperable servo readers used for...

2005-07-05

2005-07-05

Faber, Alan T. (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S031000, C360S025000

Reexamination Certificate

active

06914744

ABSTRACT:
A method, system and program for mitigating the effects of one or more inoperable servo readers used for data track positioning on a tape drive are disclosed. A track following servo system can compensate for an inoperable servo reader by collecting and measuring tape distortion information from the tape involved. The track following servo system can quantify the tape distortion information and produce a tracking offset value. The track following servo system can then position an operable servo reader over the tape with the compensating offset value applied.

REFERENCES:
patent: 5353176 (1994-10-01), Kosuge
patent: 6243225 (2001-06-01), Wyman et al.
patent: 6690535 (2004-02-01), Wang
patent: 6757128 (2004-06-01), Yip
patent: 6781784 (2004-08-01), Peterson
U.S. Appl. No. 09/751,575, filed Dec. 29, 2000, Wang, Using Component Position Error Signals (PES) to Measure Tape Distortion.

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