| 摘要 |
PURPOSE:To surely select the channel of the maximum reception power from the processor with the result of a series of comparison, by comparing the reception power obtained from the channel with selection designation with the maximum value of the reception power obtained from the channel for selection designation before. CONSTITUTION:In the mobile receiver 2 of mobile communication system having a plurality of radio channels, the frequency synthesizer 3 as the local oscillator inputting the channel designation signal S1 from the processor is provided, and the reception power of the designated channel is detected with the reception power detection circuit 4. Further, the analog switch 9 is turned on with the comparison designation signal S5 from the processor, the output of the channel is inputted to one of the comparator 11 via the integrator 10. It is compared with the reception power before being held at the voltage hold circuit 8 via the analog switch 5 with the hold designation signal from the processor, and the result of comparison S2 is fed to the processor. Further, the maximum reception power is surely selected with the result of a series of comparison. |
