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Fault detection facilitating means for card reader of identification card reading system

  • US 3,906,448 A
  • Filed: 08/01/1974
  • Issued: 09/16/1975
  • Est. Priority Date: 08/01/1974
  • Status: Expired due to Term
First Claim
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1. A card reader having a card insertion opening;

  • said card reader being suitable for use in a system including at least one card reader for reading any of a plurality of cards bearing coded information corresponding to that card when that card is inserted in said opening and situated at an operating position thereof;

    said card reader deriving an output signal manifesting the coded information borne by a card situated at said operating position, said system further including processing means coupled to said reader and having said output signal therefrom applied thereto for processing the information manifested by said output signal;

    the improvement in said card reader comprising;

    means including a test card element bearing predetermined standard coded information, said element being movably secured to said reader and being situated with respect to said opening to be moved from a given home position thereof to another position thereof by the insertion of any of said plurality of cards into said opening and to be returned to said given home position thereof by the withdrawal of that inserted card, and wherein said test-card element when in its home position is situated at the operating positions of said opening.

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