Card recording medium, certifying method and apparatus for the r

Details Card recording medium, certifying method and apparatus for the r Card recording medium, certifying method and apparatus for the r

1997-11-20

2000-02-15

Evans, F. L.

Registers

Records

Magnetic

235494, 34082534, G06K 1906

Patent

active

060242876

ABSTRACT:
In a card type recording medium containing a data area where data containing ID information of a holder are recorded, and an image area where image data are recorded, in the image area are recorded second image data which are generated by transforming first image data specifying the holder to frequency-area data, adding the transformed frequency-area data with the ID information and inversely transforming the added data to image signals.

REFERENCES:
"Nikkei Electronics" No. 660 pp. 13 (Apr. 22, 1996).
"Nikkei Electronics" No. 683 pp. 99-124 (Feb. 24, 1997).

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