Patent ID: 7174162

Claim:
A portable radio communication apparatus comprising: an antenna for performing at least one of transmitting or receiving a radio frequency message signal containing a text message; radio modulator-demodulator means for demodulating a received radio frequency message signal and for modulating a transmitting message signal containing a text message; message memory means for storing at least one of a transmitted or a received text message; display means for displaying at least one of said transmitted or received text message; operation means for forming a text message to be transmitted; timer means for measuring the current time; and control means for managing said current time; wherein said control means is for forming said text message to be transmitted through said operation means, a transmitting text message, storing a designated time for transmission together with the formed text message when storing the formed text message to said message memory means, and transmitting said transmitting text message when a match occurs between the current time read out from said timer means and the designated time for transmission added to said transmitting text message.