A data transmission device and a data transmission method are adapted to add an RTP time stamp accurately synchronized with the PCR when sequentially transmitting data stored in a recording medium in advance with the MPEG2-TS format or data sequentially formatted to the MPEG2-TS format by means of hardware according to the RTP. By moving processing to the host or to the printer, a page can be processed and printed faster. By joining the inclined flange to a lower portion of the rear inclined wall, the dashboard upper panel is supported by the dashboard lower panel from below at substantially the center in the vehicle frontrear direction. The actuator, when activated, is arranged to move the movable seat portion between a seating position for supporting a seat occupant and a stowed position. The conductive fabric comprises a base layer composed of a synthetic, regenerated or natural fiber, a conductive layer formed on the base layer to be capable of being freely formed by a pre-designed electric pattern, and an insulating layer formed on the conductive layer to protect the conductive layer from damage. The thermal engine is coupled to the mechanical energy-consuming device, for example, the generator, so as to move together.