Data storage system and method for calibrating same
AssigneeOracle America, Inc.
InventorFaramarz Mahnad
Life of this patent
Estimating the term…
Abstract
Disclosed herein are aspects of optical tape technology, tape manufacturing, and tape usage. Methods and systems of tape technology disclose optical tape media including: configurations, formulations, markings, and structure; optical tape manufacturing methods, systems, and apparatus methods and systems including: curing processes, coating methods, embossing, drums, testing, tracking alignment stamper strip; optical tape methods and systems including: pick up head adapted for the disclosed optical tape; and optical tape uses including optical storage media devices for multimedia applications.
Claims19
A data storage system comprising:
- an optical media having a defect and a plurality of tracks on each side of the defect exhibiting (i) fields of modulated wobble indicative of defect location information next to the defect and (ii) fields of modulated wobble indicative of data;
- an optical pick-up unit configured to read the fields of modulated wobble;
- and
- at least one controller operatively arranged with the pick-up unit and configured to, in response to the pick-up unit detecting defect location information on one side of the defect, command movement of the media in a first direction such that the pick-up unit is positioned adjacent to the fields of modulated wobble indicative of data on the other side of the defect.
A method for calibrating a data storage system including (i) an optical pick-up unit and (ii) an optical media having a defect and a plurality of tracks on each side of the defect, the plurality of tracks exhibiting fields of modulated wobble indicative of defect location information next to the defect and exhibiting fields of modulated wobble indicative of data, the method comprising:
- reading the fields of modulated wobble;
- detecting defect location information on one side of the defect;
- and
- positioning the media such that the pick-up unit is adjacent to the fields of modulated wobble indicative of data on the other side of the defect in response to detecting the defect location information on the one side of the defect.
A data storage system comprising:
- an optical media having a defect and a plurality of tracks on each side of the defect exhibiting (i) fields of modulated wobble indicative of defect location information next to the defect and (ii) fields of modulated wobble indicative of data;
- an optical pick-up unit configured to read the fields of modulated wobble;
- and
- at least one controller operatively arranged with the pick-up unit and configured to, in response to the pick-up unit detecting defect location information on one side of the defect, command movement of the media in a first direction such that the pick-up unit is positioned adjacent to the fields of modulated wobble indicative of data on the other side of the defect, command the pick-up unit to refocus on the fields of modulated wobble indicative of data on the other side of the defect, and command movement of the media in a second direction opposite the first such that the defect approaches the pick-up unit until the pick-up unit detects defect location information or the pick-up unit loses focus.
Dependencies are inferred from the claim text.