Semiconductor device

Details Semiconductor device Semiconductor device

2011-03-15

2011-03-15

Phu, Sanh D (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Short range rf communication

C455S041100, C455S041300, C455S343100, C455S572000, C235S451000, C235S492000

Reexamination Certificate

active

07907902

ABSTRACT:
Of a wireless communication system, an RF tag which can operate normally even when a communication distance is extremely short, like the case where the RF tag is in contact with a reader/writer, whereby the reliability is improved. The RF tag which communicates data by wireless communication includes a comparison circuit which compares electric power supplied from outside with reference electric power and a protection circuit portion which is operated when the electric power supplied from outside is higher than the reference electric power in the comparison circuit.

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