Patent ID: 8009517
Filing Date: 2011-08-30
Classification: H04B

Abstract:
1. A wireless communication system comprising: a transmitting device; and a receiving device, and wherein the transmitting device includes an input portion generating an input signal based on information to be inputted, a modulation portion generating a modulation signal by performing a prescribed modulation to the input signal, a transmitting portion generating a high-frequency signal having a prescribed frequency by amplifying the modulation signal, a dividing portion dividing the high-frequency signal into a first signal and a second signal, an antenna portion converting the first divided high-frequency signals into electromagnetic waves having the prescribed frequency and radiating the electromagnetic waves and a piezoelectric element portion converting the second divided high-frequency signals into ultrasonic waves having the prescribed frequency and radiating the ultrasonic waves, wherein the receiving device includes an antenna portion receiving electromagnetic waves having the prescribed frequency and converting the waves into a high-frequency signal a piezoelectric element portion receiving ultrasonic waves having the prescribed frequency and converting the waves into a high-frequency signal a combining portion combining the high-frequency signal a receiving portion extracting a modulation signal from the combined signal, a demodulation portion demodulating the extracted modulation signal to acquire the input signal, and an output portion outputting the information included in the acquired input signal.