Patent ID: 8467742
Filing Date: 2013-06-18
Classification: H04B

Abstract:
1. A communications apparatus for communicating with an external apparatus via a wearing body that functions as a transmission medium, the apparatus being worn by the wearing body, the wearing body contacting the external apparatus, the apparatus comprising: an electrode group including at least three electrodes that are held in contact with or in proximity of the wearing body when the apparatus is worn by the wearing body; an electrode selection section configured to a transmission section configured to transmit a signal to the wearing body via the driving electrode pair selected by the electrode selection section when the apparatus is worn by the wearing body, wherein at least one of the first driving electrode and the second driving electrode constituting the driving electrode pair is constituted by a plurality of electrodes included in the electrode group, the apparatus further comprising: a directionality adjustment section configured to change a directionality of the driving electrode pair group by varying a phase or an amplitude of a signal supplied to the plurality of electrodes constituting the at least one of the first driving electrode and the second driving electrode.