发明名称 FREQUENCY HOPPING TRANSMITTER
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a frequency hopping transmitter which is capable of automatically keeping a transmission output fixed by dividing the whole of the frequency hopping transmitter to individually calculate amplification factors of a power amplification part and amounts of loss of a filter circuit. <P>SOLUTION: A control part 46 of a frequency hopping transmitter 100 automatically calculates an amplification factor of a power amplification art 35 and the amount of loss of a filter circuit 41, which correspond to each hopping frequency, on the basis of outputs detected by detectors 36 and 42 and automatically sets an output of a transmission part on the basis of the calculated amplification factor and amount of loss so that a prescribed transmission output is transmitted from the filter circuit, and therefore, the prescribed transmission output is automatically transmitted from the filter circuit. Consequently, the whole of the frequency hopping transmitter is properly divided to be able to automatically keep the transmission output fixed without requiring much labor. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p>
申请公布号 JP2006025271(A) 申请公布日期 2006.01.26
申请号 JP20040202598 申请日期 2004.07.09
申请人 HITACHI KOKUSAI ELECTRIC INC 发明人 TSUDA SHIGEHIRO;HIRANO TAKAYUKI
分类号 H04B1/04;H04B1/713 主分类号 H04B1/04
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