Optimizing track address detection in a disc drive

Details Optimizing track address detection in a disc drive Optimizing track address detection in a disc drive

1997-08-29

2000-04-25

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7804, G11B 5596

Patent

active

060551216

ABSTRACT:
An apparatus and method for optimizing detection thresholds used to identify addresses of tracks in a disc drive having a head and a disc upon which a plurality of tracks are defined, the tracks including track address fields in which track address information is stored. A comparator is provided which generates track address sequence signals in response to a corresponding plurality of readback signals obtained as the head is maintained in a fixed relationship to a selected track. A demodulator identifies erroneous track address sequence signals therefrom and increments a count in an accumulator for each detected, erroneous signal. A detection threshold circuit sequentially provides the comparator with a set of detection thresholds from a population of detection thresholds, each of which are used in turn by the comparator. An optimal set of thresholds is thereby selected for use by the disc drive in accordance with the relative number of erroneous track address sequence signals accumulated for each of the detection thresholds from the population.

REFERENCES:
patent: 5262907 (1993-11-01), Duffy et al.
patent: 5276662 (1994-01-01), Shaver, Jr. et al.
patent: 5422760 (1995-06-01), Abbott et al.
patent: 5631999 (1997-05-01), Dinsmore
patent: 5801896 (1998-09-01), Freitas

Affiliated with

Also associated with

Rating

Optimizing track address detection in a disc drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimizing track address detection in a disc drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimizing track address detection in a disc drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-998440