| 摘要 |
PURPOSE:To attain a cable information system by radio with a small power. CONSTITUTION:A small power information system is constituted of a small power radio informing device 11 equipped with an information inputting means 17, transmitting circuit 12 which transfers data by radio with small power, receiving circuit 13, MODEM 15, CPU 14, and memory 16, a small power radio transmitter 29 equipped with a transmitting circuit 22, receiving circuit 23, MODEM 25, CPU 24, memory 26, NCU 28, and line interface circuit 4, and an information processing terminal 5. |
