Patent ID: 7343145
Filing Date: 2008-03-11
Classification: A63H,H04B

Abstract:
1. A radio control system for models, comprising, a transmitter and a receiver, in a frequency synthesizer scheme using a PLL circuit; said radio control system being capable of selecting a first frequency from among a group of frequencies when a radio model is operated, said first frequency being set as a transmission frequency of said transmitter and as a receiving frequency of said receiver, said frequency group being predetermined as usable frequencies which transmits and receives an operation signal for manipulating a radio controlled model; wherein, in order to set a transmission frequency of said transmitter and a receiving frequency of said receiver to said first frequency, said transmitter transmits a frequency set signal containing information on said first frequency to said receiver, a transmission frequency of said frequency set signal being set to a second frequency different from said first frequency; wherein said receiver previously sets a receiving frequency to said second frequency, and sets, after receiving said frequency set signal, said receiving frequency to said first frequency from among said group of frequencies based on said frequency set signal; wherein said transmitter transmits said operation signal with said first frequency after a receiving frequency of said receiver is set to said first frequency; wherein said receiver receives said operation signal to manipulate said radio controlled model.