Recording clock generation apparatus

Details Recording clock generation apparatus Recording clock generation apparatus

2004-09-29

2010-10-19

Nguyen, Hoa T (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal detecting using a clock signal

C369S047280, C369S047100

Reexamination Certificate

active

07817522

ABSTRACT:
There is provided an optical disc recording apparatus containing a small-area circuit that is adaptable to both of the formats of DVD-R/RW and +RW/+R standards.The apparatus is provided with a circuit (106) for converting a 32T-cycle binarized wobble signal based on the +RW/+R standard into a 186T-cycle binarized wobble signal based on the DVD-R/RW standard, and the converted 186T-cycle binarized wobble signal is selected with a selector (108) during +RW/+R recording while the 186T-cycle binarized wobble signal is selected during DVD-R/RW recording, whereby subsequent PLL circuits are shared to reduce the circuit scale.

REFERENCES:
patent: 2004/0052181 (2004-03-01), Tada et al.
patent: 2004/0190408 (2004-09-01), Shiraishi et al.
patent: 5-268081 (1993-10-01), None
patent: 2000-149459 (2000-05-01), None
patent: 2003-7004 (2003-01-01), None
patent: 2003-100015 (2003-04-01), None
patent: 2003-123257 (2003-04-01), None
patent: 2004-246948 (2004-09-01), None

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