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Patent Searching and Data


Title:
CARD-LIKE RECORDING MEDIUM AND CARD-LIKE RECORDING MEDIUM READER
Document Type and Number:
Japanese Patent JP3446179
Kind Code:
B2
Abstract:

PURPOSE: To provide the inexpensive and high-security card-like recording medi um by providing a magnetic recording part for recording data required for a transaction by a card and a polarizing board for discriminating the authentic ity of the card.
CONSTITUTION: At one part of the rear of a card 6, magnetic stripes 7 are layered for writing or reading data and at a through hole for the card 6, an analyzer 8 composed of a polarizing film or the like is embedded with a specified polarizing plane. On the analyzer 8 of the card 6 to be conveyed to a CRWP 9, laser beam irradiating means 10 and 11 are arranged to irradiate respective prescribed positions with linear polarized laser beam A and B of different polarizing planes, and detectors A12 and B13 are arranged at respective confronting positions so as to photodetect the respective laser beam A and B. Therefore, since an analyzed angle θ1 to the laser beam A and an analyzed angle θ2 to the laser beam B are different from each other, mutually different specified outputs are provided from the detectors A and B.


Inventors:
Tanabe, Shuji
Application Number:
JP1993000149768
Publication Date:
September 16, 2003
Filing Date:
May 31, 1993
Export Citation:
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Assignee:
GLORY LTD
International Classes:
B42D15/10; G06K17/00; G06K19/06; G06K19/08; G06K19/10; G11B5/80; (IPC1-7): G06K19/10; B42D15/10; G06K17/00; G06K19/08; G11B5/80
Attorney, Agent or Firm:
安形 雄三