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Machine translation
1. (WO1981003712) FLEXIBLE OPTICAL DISC AND METHOD AND APPARATUS FOR STABILIZING DURING WRITING AND/OR READING OF INFORMATION THEREON
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/003712    International Application No.:    PCT/US1981/000704
Publication Date: 24.12.1981 International Filing Date: 27.05.1981
IPC:
G11B 17/32 (2006.01)
Applicants:
Inventors:
Priority Data:
160769 18.06.1980 US
Title (EN) FLEXIBLE OPTICAL DISC AND METHOD AND APPARATUS FOR STABILIZING DURING WRITING AND/OR READING OF INFORMATION THEREON
(FR) DISQUE OPTIQUE FLEXIBLE ET PROCEDE ET APPAREIL DE STABILISATION PENDANT L'ECRITURE ET/OU LA LECTURE D'INFORMATIONS SUR CE DISQUE
Abstract: front page image
(EN)An improved method of stabilizing a flexible optical disc while information is written and/or read thereon involves: (1) predeterminedly positioning a flat, uniformly thick, flexible, optical disc with respect to an axis of rotation; (2) rotating the disc on such axis at a high speed and in a predeterminedly spaced relation to a predeterminedly shaped, smooth, featureless reference surface and (3) coupling a central region between the disc and reference surface to an ambient gas source. Related apparatus and disc configurations, including embodiments having flexible disc covers, also are disclosed.
(FR)Procede ameliore de stabilisation d'un disque optique flexible pendant que des informations sont ecrites et/ou lues sur celui-ci, et consistant a: (1) positionner de maniere predeterminee un disque optique plat, flexible, d'une epaisseur uniforme, par rapport a un axe de rotation; (2) mettre en rotation le disque sur cet axe a grande vitesse et avec une relation d'espace predetermine par rapport a une surface de reference lisse ayant une forme predeterminee et (3) coupler une region centrale entre le disque et la surface de reference a une source de gaz ambiant. A cet effet, un appareil et des configurations de disques, ainsi que des modes de realisation ayant des couvertures de disque flexibles, sont egalement decrits.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)