Paper
28 February 1997 Protection against jamming in a servo system of optical recorders
Igor P. Ryabokon, Viktor A. Ataev, Oleg Y. Morozovsky
Author Affiliations +
Abstract
Anti-jamming processing of optoelectronic detector signals, ensures control system invariance to change of laser power, dispersion of reflection from layer and presence of information pits. Logarithm amplification of photodetector currents stabilizes steepness of their characteristics at change of laser power (more than 10 times) and factor of reflection from surface (3 times). Besides, sections of tracing signal are chosen, which are located in intervals between information pits and free from recording. This measures increased focusing and tracking accuracy 2 - 3 times.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Igor P. Ryabokon, Viktor A. Ataev, and Oleg Y. Morozovsky "Protection against jamming in a servo system of optical recorders", Proc. SPIE 3055, International Conference on Optical Storage, Imaging, and Transmission of Information, (28 February 1997); https://doi.org/10.1117/12.267719
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KEYWORDS
Reflection

Servomechanisms

Control systems

Information operations

Signal detection

Silicon

Laser processing

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