Internal state determining apparatus

Details Internal state determining apparatus Internal state determining apparatus

1995-10-20

1997-11-18

Voeltz, Emanuel T.

Boots, shoes, and leggings

364481, 364550, 36455101, 39518401, 39518503, 39518219, 39518221, 371 214, G01R 1900

Patent

active

056894309

ABSTRACT:
An internal state determining apparatus according to the present invention includes at least one inner circuit, means for detecting a change in voltage supplied from an external device and outputting a detected signal in response to the change in voltage and internal state determining means for determining the inner circuit so as to fall into a predetermined state in response to the detected signal, as components that make up the internal state determining apparatus. Owing to the internal state determining apparatus having such a construction, when an IC card is activated in response to two types of different voltages, for example, an internal state of the IC card can be determined.

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patent: 5511161 (1996-04-01), Sato et al.
patent: 5514951 (1996-05-01), Halim et al.
patent: 5524206 (1996-06-01), Saito

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