Non-contact IC card reader/writer device, non-contact IC...

Details Non-contact IC card reader/writer device, non-contact IC... Non-contact IC card reader/writer device, non-contact IC...

2007-06-19

2007-06-19

Walsh, Daniel (Department: 2876)

Registers

Coded record sensors

Particular sensor structure

C235S380000, C235S382000, C235S487000

Reexamination Certificate

active

10625772

ABSTRACT:
A non-contact IC card reader/writer device includes antennas that perform carrier wave transmission and reception with a non-contact IC card, an A/D converter that detects the voltage level of each carrier wave received from the non-contact IC card through the antennas, and a control unit that calculates the location of the non-contact IC card from the voltage levels detected by the A/D converter.

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