On a recording medium, a monoscopic video specific section and a stereoscopic video specific section are continuous immediately after an extended data specific section. The signals may be acquired by propagating energy through a medium and measuring an attenuated signal after transmission or reflection. A force applicator is operatively connected to apply a force to the vertebral members. The transmitter performs amplitude modulation andor phase modulation based on transmission information, and modulation by a signal indicating a window function, for the carrier wave of each of pulse signals.