Data-to-Wobble Cross Talk Cancellation in Optical Disc Systems

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概要

• 論文の詳細を見る

• In this paper, a signal processing method for removing the data-to-wobble cross talk is presented. First, various causes of the leakage from the data signal to the wobble channel are analyzed. Then a general method for using a finite impulse response (FIR) filter to cancel this leakage is proposed, which is realized electronically and adaptively, and thus is cheap and robust. Instead of a full-fledged filter, a simple structure with only one adaptable gain is suggested, specifically aimed at tackling the cross talk caused by the light path astigmatism, which is considered to be the main cause of the data leakage to the push-pull channel. This simplification results in a very cost-effective solution. Finally, the experimental results show that the cross talk cancellation significantly improves the carrier-to-noise ratio (CNR) of the wobble signal, thereby leading to more reliable wobble detection.

• 2004-07-15

著者

• Schep Kees

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

• Yin Bin

  Philips Research Laboratories, High Tech Campus 34, 5656 AE Eindhoven, The Netherlands

• Padiy Alexander

  Philips Research Laboratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands

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• Wobble-Address Format of the Blu-ray Disc
• Data-to-Wobble Cross Talk Cancellation in Optical Disc Systems
• Format Description and Evaluation of the 22.5 GB Digital-Video-Recording Disc

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