Optical card, a card holder and an apparatus for recording, repr

Details Optical card, a card holder and an apparatus for recording, repr Optical card, a card holder and an apparatus for recording, repr

1991-07-29

1992-05-26

Envall, Jr., Roy N.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Specific detail of storage medium support or motion production

3692753, 369124, 360 2, 235493, 235486, G11B 2300, G11B 2504, G06K 1906

Patent

active

051174154

ABSTRACT:
An optical card including an optical storage medium and a single or a plurality of members made of a magnetic material which are incorporated with the optical card is set forth. A card holder for holding the optical card consists of a table for supporting the optical card and a single member or a plurality of members made of a magnetic material for attracting the optical card. An apparatus for recording and reproducing information on and from the optical card held by the card holder includes a light-irradiating unit for emitting light beams onto the optical storage medium of the optical card and a drive unit for relatively moving the card holder and the light-irradiating unit for tracking, with which the recording, reproducing, or erasing operation can be accurately carried out.

REFERENCES:
patent: 3430966 (1969-03-01), Gregg
patent: 3808404 (1974-04-01), Riggs
patent: 4864113 (1989-09-01), Ogura
patent: 4916687 (1990-04-01), Endo

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