Radially non-collinear track starting positions on label side of optical disc
AssigneeHewlett-Packard Development Company, L.P.
InventorsPaul J McClellan, David Pettigrew
Life of this patent
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Abstract
A method for labeling an optically writable label side of an optical disc of one embodiment of the invention is disclosed which includes at least one of the following. First, the method may multiply pass over a track of the optically writable label side of the optical disc with an optical marking mechanism, such that the optical marking mechanism writes to the track during each pass. Second, the method may advance the optical marking mechanism from the track to a next track of the optically writable label side of the optical disc, such that a starting position on the track is radially non-collinear with a starting position on the next track.
Claims19
A method for labeling an optically writable label side of an optical disc comprising:
- advancing an optical marking mechanism from a track of the optically writable label side of optical disc to another track of the optically writable label side of the optical disc, such that a starting position on the track is radially non-collinear with a starting position on the other track;
- and,
- determining an angular distance between the starting position on the track and the starting position on the other track at least to reduce discernment of end-of-track unmarked pixel effects on the track and the other track resulting from lengths of the track and the other track varying from integral multiples of a mark length with which the optical marking mechanism writes to the track and the other track.
A mass storage device comprising:
- an optical marking mechanism to at least optically write markings on a plurality of tracks of an optically writable label side of an optical disc;
- a first motor mechanism to rotate the optical disc;
- a second motor mechanism to move the optical marking mechanism radially relative to the optical disc;
- and,
- a controller to advance the optical marking mechanism to a starting position on a track of the plurality of tracks radially non-collinear with starting positions on other tracks of the plurality of tracks,
- wherein the controller determines the radially non-collinear starting positions on the plurality of tracks at least to reduce discernment of end-of-track unmarked pixel effects on the plurality of tracks and discernment of starting position pixel marking effects of the optical marking mechanism at the starting positions on the plurality of tracks.
A method for labeling an optically writable label side of an optical disc comprising:
- advancing an optical marking mechanism from a track of the optically writable label side of optical disc to another track of the optically writable label side of the optical disc, such that a starting position on the track is radially non-collinear with a starting position on the other track;
- and,
- determining an angular distance between the starting position on the track and the starting position on the other track at least to reduce discernment of starting position pixel marking effects of the optical marking mechanism at the starting positions on the track and the other track.
Dependencies are inferred from the claim text.