Paper
19 May 1989 Bit Shift Measurement and Overwriting in a Sampled Servo Format Magneto-Optical Recording
K. Kataoka, N. Ohta, S. Yonezawa
Author Affiliations +
Proceedings Volume 1078, Optical Data Storage Topical Meeting; (1989) https://doi.org/10.1117/12.952775
Event: OE/LASE '89, 1989, Los Angeles, CA, United States
Abstract
A new direct overwrite method, which uses oscillating laser pulses and magnetic field pulses modulated by code data, is demonstrated and the characteristics of bit shifts are discussed. A bit shift correction method is also demonstrated. In this method, preamble pits are written in the open space of the header area when data pits are recorded. In reconstruction, the phase of PLL clocks is adjusted automatically using the signal from the preamble pits.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
K. Kataoka, N. Ohta, and S. Yonezawa "Bit Shift Measurement and Overwriting in a Sampled Servo Format Magneto-Optical Recording", Proc. SPIE 1078, Optical Data Storage Topical Meeting, (19 May 1989); https://doi.org/10.1117/12.952775
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CITATIONS
Cited by 1 scholarly publication and 2 patents.
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KEYWORDS
Magnetism

Clocks

Modulation

Servomechanisms

Signal detection

Molybdenum

Pulsed laser operation

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