Optical information recording/reproducing system, optical inform

Details Optical information recording/reproducing system, optical inform Optical information recording/reproducing system, optical inform

1998-11-09

1999-07-27

Huber, Paul W.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369124, G11B 576, G11B 700

Patent

active

059302178

ABSTRACT:
An optical information storage medium is provided which may be employed as a prepaid card usable as money in limited stores. The optical information storage medium includes a function writable chip which consists of a plurality of memory areas each including a writable region in which information can be written once by a scan of a given beam of light and a read-only region storing therein given information which can be read out by a scan of a given beam of light. Each of the read-only regions includes a scanning guide section and an address storage section.

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patent: 5324926 (1994-06-01), Horiguchi et al.
patent: 5497367 (1996-03-01), Yamagami et al.
patent: 5684785 (1997-11-01), Itami et al.

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