Speed control using drive current profile

Details Speed control using drive current profile Speed control using drive current profile

2007-03-27

2007-03-27

Pham, Hai (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Reexamination Certificate

active

10454567

ABSTRACT:
Timing information from the label side of an optical disc is used to generate a drive current profile. The drive current profile can be applied to a spindle motor in order to maintain a rotational speed of the optical disc in the absence of the timing information.

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