A transmitting apparatus includes a transmission power reducing section to reduce a power of a transmission signal in a prescribed frequency band of a multicarrier signal containing a plurality of subcarriers and change the prescribed frequency band in which the power of the transmission signal is reduced in time sequence. The method may produce a lithium metal anode with a clean lithium surface and a current collector with a small thickness. A receiving switch port writes a data frame to the bank of shared SRAM and the transmitting switch port then reads the data frame from the shared SRAM thereby effecting the logical point to point connection. to the process for their preparation of pharmaceutical composition as well as the use their compositions for sterilization rooms and medical instruments as well as for protection of wall and wooden coatings.