Method and apparatus for recording and reproducing main and sub

Details Method and apparatus for recording and reproducing main and sub Method and apparatus for recording and reproducing main and sub

1991-03-28

1995-07-04

Epps, Georgia Y.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Electrical modification or sensing of storage medium

360 3, 358345, G11B 900, G03B 3100

Patent

active

054307058

ABSTRACT:
In an information recording apparatus, light containing information to be recorded is generated, and a photo-to-electric converting device serves to convert the light into a charge latent image. The photo-to-electric converting device includes a photoconductive member exposed to the light. Information corresponding to the charge latent image is recorded on a recording medium. A first recording device serves to record main information on a first region of the recording medium. A second recording device separate from the first recording device serves to record sub information on a second region of the recording medium. The second region is different from the first region.

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