Method and apparatus for wobble-free data recovery from CD-rom o

Details Method and apparatus for wobble-free data recovery from CD-rom o Method and apparatus for wobble-free data recovery from CD-rom o

1997-06-16

1999-01-19

Hindi, Nabil

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

G11B 700

Patent

active

058621130

ABSTRACT:
A CD-ROM drive is disclosed which usually is put to use with CR-ROMs of varying qualities which may, or may not, wobble during rotation, possibly resulting in the vibration of the complete device. On being loaded into the device, therefore, each disk is rotated at increasing speed preparatory to reading. The speed of disk rotation at which vibration due to disk wobbling builds up to a prescribed limit is held as a maximum allowable speed until the disk is unloaded. The disk is subsequently read at no more than the maximum allowable speed.

REFERENCES:
patent: 5617392 (1997-04-01), Shim
patent: 5764610 (1997-01-01), Yoshida et al.
patent: 5768231 (1996-01-01), Sagata

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