Patent ID: 8588683
Filing Date: 2013-11-19
Classification: H04B

Abstract:
1. A semiconductor device comprising: a coil configured to generate an induced electromotive force by utilizing electromagnetic induction; a first comparator configured to compare the induced electromotive force with a first reference potential and to output a first pulse signal in the case where the induced electromotive force is higher than the first reference potential; a second comparator configured to compare the induced electromotive force with a second reference potential and output a second pulse signal in the case where the induced electromotive force is lower than the second reference potential; a first signal processing circuit, wherein the first signal processing circuit is configured to output a first receiving rectangular wave signal when the first pulse signal is output, wherein the first signal processing circuit is configured to output a first error signal when the first pulse signal is output twice or more in succession, and wherein a data in the first signal processing circuit is reset when the second pulse signal is output; and a second signal processing circuit, wherein the second signal processing circuit is configured to output a second receiving rectangular wave signal when the second pulse signal is output, wherein the second signal processing circuit is configured to output a second error signal when the second pulse signal is output twice or more in succession, and wherein a data in the second signal processing circuit is reset when the first pulse signal is output.