Patent ID: 7493047

Claim:
A transceiver for inducing electric fields based on data to be transmitted in an electric field propagating medium and carrying out transmission and reception of data by using induced electric fields, comprising: a transmission electrode configured to induce the electric fields based on the data to be transmitted in the electric field propagating medium; a transmission circuit configured to supply transmission data for causing the transmission electrode to induce the electric fields based on the data to be transmitted in the electric field propagating medium, to the transmission electrode; a reception electrode configured to receive electric fields induced in and propagated through the electric field propagating medium; an electric field detection unit configured to detect received electric fields as received by the reception electrode, and convert the received electric fields into electric signals by causing a resonance in an electro-optic element by using the received electric fields; a modulation circuit configured to modulate the transmission data by using resonant frequencies of the electro-optic element as modulation frequencies, and supply modulated transmission data to the transmission circuit; and a demodulation circuit configured to demodulate the electric signals from the electric field detection unit.