IC CARD AND ITS READER/WRITER

IC CARD AND ITS READER/WRITER

PROBLEM TO BE SOLVED: To apply it in a relatively small closed part and to simply authenticate the correctness of an IC card. SOLUTION: A coil 31 with both of its ends connected is provided between an input-output line 26 and a ground line 27. When a card is inserted into a reader/writer 34, current...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: KAWAKITA TATSUJIRO
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To apply it in a relatively small closed part and to simply authenticate the correctness of an IC card. SOLUTION: A coil 31 with both of its ends connected is provided between an input-output line 26 and a ground line 27. When a card is inserted into a reader/writer 34, current flows into the coil 31 by data a that is supplied from the reader/writer, this is electromagnetically guided by a coil 43, detected b, furthermore, undergone waveform shaping c, and after that, converted into parallel data 48, a comparing means 49 compares this with IC card supply data and when they coincide, the IC card is decided as correct.