Control system for an optical data recording apparatus

Details Control system for an optical data recording apparatus Control system for an optical data recording apparatus

G - Physics

11

B

352/32.2

G11B 7/08 (2006.01) G11B 7/0045 (2006.01) G11B 7/12 (2006.01) G11B 7/125 (2006.01) G11B 20/18 (2006.01) G11B 27/36 (2006.01)

Patent

CA 1194230

ABSTRACT: Control system for an optical data recording apparatus. Disclosed is a closed loop control system for an optical recording apparatus of the read after write type comprising a comparator for comparing the input data signal with a playback signal derived from the read beam which trails the write beam and is modulated by the data pattern inscribed on the recording medium by the write beam. The error signal generated by the comparator is applied to a controller which varies the modulation of the read beam in dependence on the error signal, for example, by modifying the data signal used to drive the write beam modulator. In this way, the control system compensates for nonuniformities in the recording medium and the like so as to ensure that the pattern inscribed by the write beam accurately represents the data to be stored.

420835

Affiliated with

Also associated with

Rating

Control system for an optical data recording apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for an optical data recording apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for an optical data recording apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1299498