| 摘要 |
PURPOSE:To switch controllers stably by a sweeping stop signal by switching between a controller in a radio receiver having a PLL frequency synthesizer and the controller for keyed inputs and display information by a serial signal. CONSTITUTION:The radio receiver 1 having the PLL frequency synthesizer is provided with the 1st controller 2 for controlling reception. The 2nd controller 5 is prepared for an operation switch 3 and a display device 4. Between the 1st and 2nd controllers 2, 5, information is transmitted by a serial signal. The 1st controller 1 applies a frequency dividing ratio value to the radio receiver 1 and the 2nd controller 5 receives receiving information from the 1st controller 2. Since information is transmitted/received between these controllers by a serial signal in said procedure, the generation of incorrect sweeping stop due to the generation of ringing can be prevented. |
