Methods and systems for self-servowriting including maintaining a reference level within a usable dynamic range
First Claim
1. A method for writing product servo-pattern bursts in a self-servowriting system having a storage medium with a plurality of tracks for holding bursts therein, said method comprising:
- writing a first product servo-pattern burst in a first track of the plurality of tracks; and
writing a second sequential product servo-pattern burst in a second track of the plurality of tracks while servoing to a third propagation burst located in a third track of the plurality of tracks, said third track of the plurality of tracks located intermediate said first track and said second track.
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Accused Products
Abstract
Methods and systems for self-servowriting a data storage medium are disclosed, including servoing to propagation bursts of a propagation pattern located in tracks other than an immediately preceding track. Reference levels used to position a recording head are accordingly kept in a usable dynamic range necessary to keep servo track spacing constant across the medium. The methods and systems are disclosed in connection with a rotary actuator having spaced read and write heads. Similar methods are disclosed for writing trigger or timing bursts of the propagation pattern.
28 Citations
5 Claims
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1. A method for writing product servo-pattern bursts in a self-servowriting system having a storage medium with a plurality of tracks for holding bursts therein, said method comprising:
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writing a first product servo-pattern burst in a first track of the plurality of tracks; and writing a second sequential product servo-pattern burst in a second track of the plurality of tracks while servoing to a third propagation burst located in a third track of the plurality of tracks, said third track of the plurality of tracks located intermediate said first track and said second track. - View Dependent Claims (2, 3)
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4. A system for writing product servo-pattern bursts in a self-servowriting system having a storage medium with a plurality of tracks for holding bursts therein, said system comprising:
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means for writing a first product servo-pattern burst in a first track of the plurality of tracks; and means for writing a second sequential product servo-pattern burst in a second track of the plurality of tracks while servoing to a third propagation burst located in a third track of the plurality of tracks, said third track of the plurality of tracks located intermediate said first track and said second track. - View Dependent Claims (5)
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Specification