Wobble signal detection

Details Wobble signal detection Wobble signal detection

2005-10-17

2009-02-10

Agustin, Peter Vincent (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S124050, C369S044130

Reexamination Certificate

active

07489608

ABSTRACT:
Wobble detection for detecting data in a wobble signal modulated with a base signal includes sampling the wobble signal at a substantial maximum and a substantial minimum of a base signal within a wobble period, producing a value of the wobble signal at the substantial maximum of the base signal with an unchanged sign and a value of the wobble signal at the substantial minimum of the base signal with a reversed sign, determining a sum of the values within the wobble period, and decoding the sum to detect data.

REFERENCES:
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patent: 7123557 (2006-10-01), Heemskerk et al.
patent: 7149170 (2006-12-01), Dai
patent: 7212486 (2007-05-01), Mashimo et al.
patent: 2003/0099172 (2003-05-01), Park et al.
patent: 2004/0071228 (2004-04-01), Nakata et al.
patent: 2004/0145981 (2004-07-01), Mashimo
patent: 2004/0174800 (2004-09-01), Heemskerk et al.
patent: 2005/0226108 (2005-10-01), Ichimura
patent: 2006/0126454 (2006-06-01), Serrano et al.
White paper Blu-ray Disc Format 1.A Physical Format Specifications for BD-RE, Aug. 2004 1-33.

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