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Proceedings Paper

Automatic Handling Mechanisms For An Optical Disc Mass Memory System
Author(s): G. J. Ammon; B. W. Siryj
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Paper Abstract

An optical disc mass memory system is being developed which will provide automatic access to any data in a store of 1013 bits within five seconds. This system contains a library of 128 optical discs with mechanisms for retrieving any disc, loading it onto a turntable, and recording or playing digital data at a rate of 50 Mb/s. The optical discs are housed in protective cartridges to facilitate handling by the operating personnel and automatic disc handling mechanisms. Cartridges are moved from the store to a load station by a belt-driven X-Y transport mechanism. The load station then mounts the discs onto a precision turntable, and they are spun up to speed while housed within their protective cartridges. A window in the cartridge wall provides access for the record and play laser beams to operate on the disc media. The disc handling mechanisms were designed to minimize mechanical shock and vibration while providing a rapid, smooth operation. A special centering hub design, for the turntable minimizes disc eccentricities during multiple load/unload cycles and allows easy inter-changeability among machines. This paper will describe the cartridge, turntable, and disc handling mechanisms designs. Test results from an engineering model implementing these designs will also be presented.

Paper Details

Date Published: 20 September 1982
PDF: 7 pages
Proc. SPIE 0390, High Speed Read/Write Techniques for Advanced Printing and Data Handling, (20 September 1982); doi: 10.1117/12.935023
Show Author Affiliations
G. J. Ammon, RCA Advanced Technology Laboratories (United States)
B. W. Siryj, RCA Advanced Technology Laboratories (United States)


Published in SPIE Proceedings Vol. 0390:
High Speed Read/Write Techniques for Advanced Printing and Data Handling
Leo Beiser, Editor(s)

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