Transmitter-receiver unit capable of being charged without using dedicated charger

Abstract

For performing communication by a mobile telephone and charging thereof without connecting the mobile telephone to different devices, an adapter is provided with a connector connected to a signal terminal of the mobile telephone for the transmission and reception of transmission data and reception data for the mobile telephone and charging connectors connected to a charging terminal of the mobile telephone for the supply of a charging electric terminal, the adapter being connected to a personal computer body through a predetermined interface. During communication, through the connector, transmission data is generated on the basis of data inputted from a keyboard and reception data is processed so as to be capable of being displayed on a display. While communication is not performed, through the charging connectors, electric power is supplied from a power supply section to charge the mobile telephone.

Dependencies are inferred from the claim text.