Detecting radius of optically writable label side of optical...

Details Detecting radius of optically writable label side of optical... Detecting radius of optically writable label side of optical...

2007-09-11

2007-09-11

Huber, Paul W. (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S275100

Reexamination Certificate

active

10867436

ABSTRACT:
A method of an embodiment of the invention rotates an optical disc having an optically writable label side. The optical disc is radially scanned with a laser incident to the optically writable label side, from a first edge of the optical disc to a second edge of the optical disc. While the laser is radially scanned from the first edge to the second edge of the optical disc, a first radius at which markings have not been written to the optically writable label side of the optical disc, next to a second radius at which markings have been written to the optically writable label side of the optical disc, is detected.

REFERENCES:
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patent: 2005/0180304 (2005-08-01), Onodera et al.
patent: 1308938 (2003-05-01), None
patent: 2002203321 (2002-07-01), None
International Search Report for PCT Patent Application No. PCT/ US2005/018787 filed May 27, 2005. Report issued Nov. 15, 2005.

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