Method for decoding address in pre-groove data of an optical...

Details Method for decoding address in pre-groove data of an optical... Method for decoding address in pre-groove data of an optical...

2006-12-12

2006-12-12

Edun, Muhammad (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal detecting using a clock signal

C369S059200, C369S044130, C369S047480

Reexamination Certificate

active

07149170

ABSTRACT:
A method for optical drive decoding of address in pre-groove (ADIP) data is provided to decode an input wobble signal to an ADIP unit signal. The method includes generating a wobble carrier frequency signal having the same phase with the wobble signal, multiplying the wobble carrier frequency signal by the input wobble signal to generate a product signal, accumulating the value of the product signal in each clock to generate a quotient summation signal, determining the phase change of the input wobble signal according to the value of the quotient summation to generate a phase change signal, and generating the ADIP unit signal by comparing the phase change signal with a plurality of ADIP patterns.

REFERENCES:
patent: 2002/0048239 (2002-04-01), Ueki et al.
patent: 2003/0043718 (2003-03-01), Minamino et al.
patent: WO 03/034413 (2003-04-01), None

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