Image recording medium, a processing apparatus thereof, and an e

Details Image recording medium, a processing apparatus thereof, and an e Image recording medium, a processing apparatus thereof, and an e

1993-09-21

1995-07-04

Shepperd, John

Registers

Systems controlled by data bearing records

Credit or identification card systems

235487, 283901, G06K 1908

Patent

active

054302773

ABSTRACT:
A visible image displaying medium comprises a substrate on which a visible image is formed, and a displaying layer, disposed on the substrate, when the displaying layer is heated to a first temperature, changing to a transparent state to display the visible image and when the displaying layer is heated to a second temperature higher than the first temperature, changing to a cloudy state to shut the visible image. Further, an apparatus for processing a recording medium which has a substrate on which a visible image is formed and a displaying layer, disposed on the substrate, when the displaying layer is heated to a first temperature, changing to a transparent state to display the visible image and when the displaying layer is heated to a second temperature higher than the first temperature, changing to a cloudy state to shut the visible image, the apparatus comprises means for heating the displaying layer to the first temperature to display the visible image, and means for reading the visible image on the recording medium through the displaying layer.

REFERENCES:
patent: 3829661 (1974-08-01), Silverman et al.
patent: 4245213 (1981-01-01), Kriger
patent: 4667087 (1987-05-01), Quintana
patent: 4960982 (1990-10-01), Takahira
patent: 4980679 (1990-12-01), Klaubert
patent: 5083815 (1992-01-01), Scrymaeour et al.
patent: 5282651 (1994-02-01), Alonso
IBM Technical Disclosure Bulletin, vol. 29 No. 4 Sep. 1986 pp. 1149-1150.

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