US PATENT SUBCLASS 369 / 44.13
.~.~ Dithering or wobbling the beam or track

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

43  DF  WITH SERVO POSITIONING OF TRANSDUCER ASSEMBLY OVER TRACK COMBINED WITH INFORMATION SIGNAL PROCESSING {1}
44.11  DF  .~ Optical servo system {12}
44.13.~.~ Dithering or wobbling the beam or track

DEFINITION

Classification: 369/44.13

Dithering or wobbling the beam or track:

(under subclass 44.11) Subject matter wherein a beam or track is dithered wobbled, undulated, vibrated, or oscillated along a track center line for tracking or focusing control.