Information recording medium, reading apparatus for said medium

Details Information recording medium, reading apparatus for said medium Information recording medium, reading apparatus for said medium

1997-12-15

1999-07-13

Fears, Terrell W.

Static information storage and retrieval

Radiant energy

Photoconductive

365106, G11C 1142

Patent

active

059235810

ABSTRACT:
Information recording medium, reading apparatus for said medium and processes for implementing the apparatus. According to the invention, the material constituting the recording layer (15) is photoconducting. The apparatus comprises in particular a microprobe (20) and a light source (26) capable of subjecting the recording layer to a lit or unlit state. The resulting variations in resistivity are used to determine whether the read zone is amorphous or crystalline.

REFERENCES:
patent: 3119099 (1964-01-01), Burnat
patent: 3801966 (1974-04-01), Terao
patent: 3833894 (1974-09-01), Aviram et al.
patent: 4139980 (1979-02-01), Larson et al.
H. Fleisher, et al., IBM Technical Disclosure Bulletin, vol. 14, No. 12, pp. 3581 and 3582, May 1972, "Storage Element for Machine Use".

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