TRANSCEIVER - Nippon Telegraph and Telephone Corporation

Title:

TRANSCEIVER

Document Type and Number:

Japanese Patent JP3842763

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a transceiver capable of improving the communication quality by preventing variations of the voltage applied to an electric field propagating medium.
SOLUTION: The transceiver is provided with a transmitting means for outputting an AC signal having a predetermined frequency to modulate information to be transmitted, and transmitting this modulated signal; a resonant means to be connected in parallel to the transmitting means and a transmitting/receiving electrode to cause series resonance with the floating capacitance generated between the ground of the transmitting means and the earth ground, and with the floating capacitance generated between a living body and the earth ground; an electric field detecting means for detecting the electric field based on the information to be received and converting this electric field into an electric signal; an adjustment signal generating means for outputting an adjustment signal for finely changing the amplitude of an electric signal outputted from this electric field detecting means; an amplitude detecting means for detecting the amplitude of the electric signal by using the adjustment signal outputted from this adjustment signal generating means; a control signal generating means for generating a control signal for controlling the characteristics of the resonant means on the basis of the amplitude detected by the amplitude detecting means; and a demodulating means for demodulating the electric signal converted by the electric field detecting means.

Inventors:

Naoshi Minoya
Shintaro Shibata
Mitsuru Shinagawa

Application Number:

JP2003181562A

Publication Date:

November 08, 2006

Filing Date:

June 25, 2003

Export Citation:

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