Dosage forms and drug delivery devices suitable for administration of pharmaceutical compounds and compositions, including the oral drug administration of compounds. A signal combinerdivider is connected to each of the transmissionreception signal lines of a main and a subsystem duplexer and combines signals according to their phases and divides other signals. The distal end of the body has a generally tubular skirt. The number determiner determines a number of interpolation ATIP sync signals and generates a writing speed transformation control signal based on the determination result.