Optical disc apparatus and ADIP decoder

Details Optical disc apparatus and ADIP decoder Optical disc apparatus and ADIP decoder

2008-01-24

2010-11-16

Ortiz Criado, Jorge L (Department: 2627)

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal detecting using a clock signal

C369S047210, C369S059210

Reexamination Certificate

active

07835244

ABSTRACT:
An ADIP decoder for decoding address in pre-groove (ADIP) of a wobble of an optical disc, has: a band pass filter that filters a wobble signal having a period corresponding to the wobble; a wobble PLL circuit that divides a frequency of a phase-locked clock signal in response to an input of the filtered wobble signal, and outputs a locked wobble signal; a timing generating circuit that generates a sampling timing signal based on the clock signal; an analog to digital converter that converts the filtered wobble signal into a digital signal in synchronization with the sampling timing signal; and an ADIP decoding circuit that counts a clock of the locked wobble signal with a counter, holds an address and one of a minimum amplitude value and a maximum amplitude value of the digital signal for each counter period, the address corresponding to a wobble clock count value where the digital signal has one of the minimum amplitude value and the maximum amplitude value, and that decodes the ADIP based on a distribution of the held address.

REFERENCES:
patent: 7065017 (2006-06-01), Nishida
patent: 2004/0130995 (2004-07-01), Nakajima et al.
patent: 2004-103184 (2004-04-01), None

Affiliated with

Also associated with

Rating

Optical disc apparatus and ADIP decoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical disc apparatus and ADIP decoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical disc apparatus and ADIP decoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4234175