Focusing and tracking servo circuit in an optical disk device
Focusing method of layer jumping for an optical storage device
Focusing state monitoring apparatus in optical recording apparat
Frame number detection for signals produced from optical disk
Front photo detector having no gain selection switch,...
Generating tracking control output signals for compensating...
HD DVD wobble detection circuit
Head follow-up control method, head follow-up control device...
Head for optical disc drive
Header region protection apparatus and method of optical...
Hiding digital data in a digital audio or video carrier signal
High data capacity storage medium with protection code,...
High speed data recording and/or reproducing method and...
High-density multi-layer optical disc and method for...
High-density multi-layer optical disc, method for recording...
Hologram recording and reproducing device and method for...
Holographic information storage medium, and apparatus and...
Hybrid disc and method and apparatus for discriminating same
Hybrid optical disc
Identifying copy protected optical compact discs