Method and system for identifying the size of an optical disc

Details Method and system for identifying the size of an optical disc Method and system for identifying the size of an optical disc

2007-10-09

2007-10-09

Korzuch, William R (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047360

Reexamination Certificate

active

10943749

ABSTRACT:
A method for identifying the size of an optical disc includes the steps of driving a motor at a specified rotary torque for rotating the optical disc, measuring angular acceleration of the optical disc, and comparing the measured angular acceleration with a reference angular acceleration to identify the size of the optical disc. A system that performs the method is also disclosed.

REFERENCES:
patent: 4653040 (1987-03-01), Senso
patent: 5644561 (1997-07-01), Son et al.
patent: 6414924 (2002-07-01), Jin
patent: 6597532 (2003-07-01), Usui et al.
patent: 7110337 (2006-09-01), Kim et al.
patent: 2007/0104061 (2007-05-01), Aufderheide et al.

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