Optical recorder and reader of data on light sensitive media

Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal

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369 48, 369 54, 369116, 369112, 369 4414, 369 4418, 369 4437, G11B 700

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active

054652430

ABSTRACT:
The optical tape recorder of the present invention is capable of archiving data at rates in excess of 400 megabits per second by concurrently writing or reading a plurality data tracks in each data trace. A read-write module outputs an illumination beam comprised of combined multiple write beams (channels), a read beam and an autofocus beam. Optics within the read-write module spatially combine and accurately position the plurality of beams with respect to each other to form the multi-beam illumination beam. A read-write head comprised of a synchronized scanning transmissive polygon and rotating lens wheel scans the multi-beam illumination beam across a recording media to read or write multi-channel data tracks. An autofocus system is also included to ensure that the multi-beam illumination beam is accurately focused on the recording media.

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