| 摘要 |
PROBLEM TO BE SOLVED: To attain easy exchange of data with an electric home appliance by making a signal processing means receive a signal including the time information, extracting the time information by processing the received signal and update the time information stored in a storage means based on the extracted time information. SOLUTION: The signal inputted via an antenna 10 is converted into a digital signal by a radio receiving circuit 11 and undergoes the correction of its error via a decoding circuit 12. When the normal time information is confirmed by a time information detection circuit 13, a time information receiving signal is outputted to a control circuit 16. The circuit 16 starts to receive the time information by the time information receiving signal. This receiving signal is processed by the circuit 12 and stored in a storage circuit 19. A time information interrupt control circuit 23 notifies an external device of a time updating interrupt signal through an information exchange part 17 by an instruction of the circuit 16. The time information is updated by a clock circuit 21 in a period when no time information is received. |
