Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2006-11-21
2011-12-06
Haley, Joseph (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S047150, C369S053280, C369S044260
Reexamination Certificate
active
08072852
ABSTRACT:
An optical disc drive according to the present invention can write data on both a write-once disc and a rewritable disc. The drive includes: a disc recognizing section110for recognizing the type of a given optical disc as a write-once disc or a rewritable disc; and track skipping detection signal generating section, which outputs track skipping detection signal when a first condition on tracking error is satisfied if the given optical disc, on which data is being written, has turned out to be a write-once disc. On the other hand, if the given optical disc has turned out to be a rewritable disc, the track skipping detection signal generating section outputs track skipping detection signal when a second condition on tracking error, which is different from the first condition, is satisfied. A control section stops writing the data in response to the track skipping detection signal while the data is being written.
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International Search Report for corresponding Application No. PCT/JP2006/323166 dated Feb. 27, 2007.
Minamino Jun-ichi
Watanabe Katsuya
Yoshikawa Akira
Haley Joseph
Iluyomade Ifedayo
Panasonic Corporation
Renner , Otto, Boisselle & Sklar, LLP
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