| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio communication system performing bi-directional data communication between a master unit and a slave unit in which the radio communication frequency band of a communication signal being delivered from the master unit can be altered arbitrarily at downlink data communication, and the slave unit can convert the radio communication frequency by a preset frequency variation regardless of the radio communication frequency band. <P>SOLUTION: The radio communication system comprises a downlink frequency control means provided in a master unit, in order to control the radio communication frequency band of a communication signal being delivered from the master unit arbitrarily at downlink data communication; and a slave unit downlink frequency converting means provided in a slave unit, in order to convert the radio communication frequency of a communication signal being received by the slave unit by a preset frequency variation regardless of the radio communication frequency band at downlink data communication. <P>COPYRIGHT: (C)2003,JPO |
