Optical disk recording/playback apparatus and optical disk...

Details Optical disk recording/playback apparatus and optical disk... Optical disk recording/playback apparatus and optical disk...

2005-03-08

2008-12-02

Huber, Paul (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S047280

Reexamination Certificate

active

07460457

ABSTRACT:
A counter11continuously reads in the EFM signal from a binarizing circuit4, resets its count value each time the polarity of the EFM signal changes, counts counter clocks higher in frequency than the EFM signal during each EFM period of the EFM signal, and transfers the count values to a FIFO12sequentially. The FIFO12temporarily stores the count values transferred, and writes a predetermined number of count values into a buffer RAM7in a batch each time the predetermined number of count values are stored.

REFERENCES:
patent: 5185765 (1993-02-01), Walker
patent: 5590112 (1996-12-01), Morishima
patent: 6552971 (2003-04-01), Iida
patent: 6778104 (2004-08-01), Chen et al.
patent: 6956805 (2005-10-01), Mashimo
patent: 7304932 (2007-12-01), Sako et al.
patent: 11-167720 (1999-06-01), None

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