Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Reexamination Certificate
2004-08-24
2008-10-14
Psitos, Aristotelis M (Department: 2627)
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
C369S044320
Reexamination Certificate
active
07436746
ABSTRACT:
A tilt detection system includes an optical disk having a series of data recorded therein, the series of data having a pulse width smaller than the minimum pulse width of data recorded in an ordinary optical disk; a reproducing part reproducing a signal from the optical disk by emitting a light beam onto the optical disk; and a tilt detecting part detecting a tilt of the light beam with respect to the optical disk based on a reproduced RF signal provided by the reproducing part when the series of data having the smaller pulse width is reproduced.
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4.7 GB DVD-RAM, Matsushita Technical Journal, vol. 45, No. 6, Dec. 1999, pp. 679-685.
Mashimo Akira
Ueno Keishi
Baker & Hostetler LLP
Psitos Aristotelis M
Teac Corporation
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