Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1992-06-22
1995-08-29
Argenbright, Tony M.
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
360 9806, 369 36, G11B 708, G11B 1704
Patent
active
054467063
ABSTRACT:
Optical discs are contained in sleeves each of which has a magnetizable element at one edge of the sleeve where the element can be attracted to an electromagnet. The disc and sleeve combinations are arranged side by side in an open sided carrier such that the magnetizable elements are positioned at the carrier's open side. An optical writer or reader is mounted for movement to a position opposite a selected disc and sleeve combination. An electromagnet element carried by the writer or reader is energizable to attract and hold the magnetizable element of the selected sleeve. A device on the reader or writer is capable of moving the electromagnet to pull the magnetizable element, the sleeve and the disc from the carrier to an operating position on the writer or reader and to push them back into the carrier. In the preferred form, the apparatus in which the disc is read and written to is provided with a device for moving the write and read head assembly from a position on either side of the disc to the other side.
REFERENCES:
patent: 4286790 (1981-09-01), Siryj et al.
patent: 4502133 (1985-02-01), Siryj et al.
patent: 4787074 (1988-11-01), Deck et al.
Argenbright Tony M.
Roberts Edward E.
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