| 摘要 |
<p>PURPOSE:To make communication with a specified opposite party only by specifying a communication opposite party without input of watchword or the like in advance in the communication equipment used for an electronic notebook or the like. CONSTITUTION:The communication equipment built in an electronic notebook A has a communication circuit 6 for transmission reception, a CPU 4, a clock circuit 5, a RAM 9 and a display section 1a. In the case of sending a message, a time counted by the CPU using a clock circuit 5 is stored in the RAM 9 and outputted to the communication circuit 6. Then the communication circuit 6 sends a time together with a message. Upon the receipt of the message and the time, the time stored in the RAM 9 is compared with the received time and only when they are the same, the message is displayed on the display section 1a. That is, the time is processed as the identification code and the same time is communicated between communication equipments stored in the RAM 9.</p> |
