Translator Disclaimer
14 January 1987 A New Servo Method With Eccentricity Correction Circuit
Author Affiliations +
Abstract
A new servo method with eccentricity correction circuit for an optical disc equipment is developed. When eccentricity exists, the relative position between tracks and rotation center of a disc varies sinusoid according to the disc rotation. Eccentricity correction is performed by moving actuater according to the synchronized sinusoidal correction signal. Amplitude and phase of the correction signal are equalized to those of track movement by microcomputer. This eccentricity correction can reduce a 200 μm eccentricity down to 10 μm, improve tracking ability, and shorten track access time.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Y. Fukui, Y. Miura, and M. Suzuki "A New Servo Method With Eccentricity Correction Circuit", Proc. SPIE 0695, Optical Mass Data Storage II, (14 January 1987); https://doi.org/10.1117/12.936830
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT


Back to Top