Readout system of multi-level run-length-limited read-only disc

Hequn Wang; Haizheng Xu; Longfa Pan; Mingming Yan

doi:10.1117/12.822586

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19 March 2009 Readout system of multi-level run-length-limited read-only disc

Hequn Wang, Haizheng Xu, Longfa Pan, Mingming Yan

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Proceedings Volume 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage; 712508 (2009) https://doi.org/10.1117/12.822586
Event: Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 2008, Wuhan, China

Abstract

The Radio Frequency (RF) signal of the Multi-Level Run-Length-Limited (ML-RLL) read-only disc is different from that of DVD, so the readout system of the ML-RLL read-only disc is built specially. The readout system of the ML-RLL read-only disc can realize servo control, RF signal readout and so on. The readout system consists of Digital Versatile Disc (DVD) traverse, analog front-end and digital processing part. Analog front-end can realize front-end amplification of the output signal of the optical pick-up and power drive of mechanism. Digital processing part mainly consists of digital circuits, which functions are the servo controlling, demodulation and decoding of RF signal, general control and so on. The whole system is implemented on two Field Programmable Gate Array (FPGA) chips and the experimental results show a good performance. We tested the important signals, and experimental results are also given to verify the performance of this development platform, which meets the controlling and detecting requirements to multi-level read-only disc completely. The Bit Error Rate (SER) can achieve below 10^-4.

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Hequn Wang, Haizheng Xu, Longfa Pan, and Mingming Yan "Readout system of multi-level run-length-limited read-only disc", Proc. SPIE 7125, Eighth International Symposium on Optical Storage and 2008 International Workshop on Information Data Storage, 712508 (19 March 2009); https://doi.org/10.1117/12.822586

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