PROBLEM TO BE SOLVED: To obtain stable biological information transmission even in posture change of a subject at low power consumption.SOLUTION: A biological signal transmission apparatus includes: a first measurement electrode part 2, a second measurement electrode part 3, and a reference electrode part 4 which are disposed to contact with the subject a first antenna 8 and a second antennal 9 which are disposed in positions close to the first measurement electrode part 2 and the second measurement electrode part 3, respectively an antenna selection part 6 which selects one of the antennas close to the first measurement electrode part 2 and the second measurement electrode part 3 where voltage potential, which is a radix for calculation of the biological signal having fewer time changes is measured, based on the first biological signal that is a measurement potential difference between the first measurement electrode part 2 and the reference electrode part 4, and the second biological signal that is a measurement potential difference between the second measurement electrode part 3 and the reference electrode part 4 from the first antenna 8 and the second antenna 9 and a transmission part 7 which transmits the first biological signal and the second biological signal from the antenna selected by the antenna selection part 6 to a receiver 10.COPYRIGHT: (C)2013,JPO&INPIT【課題】低消費電力で被験者の姿勢変化時にも安定した生体情報送信を実現する。【解決手段】被験者に接触して配置される第1計測電極部2、第2計測電極部3および基準電極部4と、第1計測電極部2および第2計測電極部3に近接した位置にそれぞれ配置される第1アンテナ8および第2アンテナ9と、第1計測電極部2および基準電極部4の計測電位差である第1生体信号と、第2計測電極部3および基準電極部4の計測電位差である第2生体信号とのうち時間変動が少ない方の生体信号の算出の基となる電位を計測した、第1計測電極部2および第2計測電極部3のいずれか一方に近接したアンテナを、第1アンテナ8および第2アンテナ9から選択するアンテナ選択部6と、第1生体信号および第2生体信号を、アンテナ選択部6が選択したアンテナから受信器10に対して送信する送信部7とを備える。【選択図】図5
