Wobbled pit recording method and device of optical recording med

Details Wobbled pit recording method and device of optical recording med Wobbled pit recording method and device of optical recording med

1986-01-13

1988-12-13

Cardillo, Raymond F.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 44, G11B 7125, G11B 7095

Patent

active

047916273

ABSTRACT:
A method and device for recording pre-pits on an optical recording medium by projecting a modulated optical beam onto the recording medium. A formatter signal source provides an output waveform which is divided into a plurality of separate signal waveforms different in time from one another and each of the separate signal waveforms is superposed with a different carrier frequency. The superposed signals are supplied to an acoustic-optic modulator for modulating the optical beam which is projected onto the recording medium for forming pre-wobbled pre-pits thereon.

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Terman, "Radio Engineers' Handbook", pp. 578 to 588.

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