An optical disk apparatus for stable tracking and reproduction of information recorded on a high density disk, the apparatus cancels various noise components in the tracking error signal. Disturbances caused in the tracking error signal, such as crosstalk from adjacent tracks, the positional shift of...http://www.google.fr/patents/US5905703?utm_source=gb-gplus-shareBrevet US5905703 - Optical disk apparatus having an improved tracking control system
Optical disk apparatus having an improved tracking control system
